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An innovative experimental approach based on a microfluidic paper-based chip has been designed for specific detection of Escherichia coli (E. coli). The chip is fabricated for detecting E. coli in water samples. The main contents include the preparation of paper chips, lysis of E. coli on the chip, detection of E. coli, optimization of detection conditions, and detection of E. coli in actual samples. This experiment integrates cutting-edge disciplines, demonstrating robust comprehensive and innovative characteristics. It aligns with the practical education concept marked by the progression from “basic experiment → comprehensive experiment → research-oriented experiment”, effectively strengthening students’ capacities for problem analysis and solution. [ABSTRACT FROM AUTHOR]

An experiment designed to predict the lifetime of the Xuan paper using the viscosity method is introduced in the form of group collaboration. This experiment is targeted at junior students who majored in conservation of cultural relics, with eight groups involved. Using a jacketed viscometer, the intrinsic viscosity of the two types of undegraded and degraded Xuan papers was determined, and the corresponding degree of polymerization (DP) was calculated. Then data were collected from all groups, and degradation rates of the papers were then calculated, which were then used to predict the life expectancy of the Xuan papers. The aim was to enhance students’ teamwork skills, practical experience, problem-solving abilities, data analysis, and scientific research capabilities, while also guiding them to apply their chemical knowledge to practical conservation for paper-based objects. [ABSTRACT FROM AUTHOR]

Test paper, a type of paper product chemically treated to produce color changes in response to specific substances, serves as a valuable tool for rapid detection and analysis. This experiment, based on the surface modification of glass fiber filter paper, introduces a heavy metal ion detection test paper designed with the fluorescence sensing characteristics of rare earth complexes. The test paper demonstrates its effectiveness and convenience in detecting heavy metal ions in water sources. The innovative test paper proves highly useful in addressing heavy metal ion contamination in water, emphasizing the significant role of chemistry in advancing ecological civilization. The simplified, safe, and environmentally friendly process of creating the test paper yields a practical and user-friendly product. This experiment not only educates on the general production and testing principles of test papers but also sparks students' interest in scientific exploration and application. The experiment, characterized by its simplicity, repeatability, low entry barrier, environmental friendliness, and safety, possesses a unique color aesthetic, leaving a lasting impression. It is suitable for conducting popular science experiments in public places and promoting awareness in experimental teaching across various educational levels. [ABSTRACT FROM AUTHOR]

This study presents a research-oriented comprehensive chemistry experiment project. Specifically, a fluorometric sensor based on a nickel nanocluster (NiNC)-europium complex (denoted as NiNCs-Eu3+) was developed for the detection of tetracyclines (TCs). This experiment includes the preparation and characterization of NiNCs-Eu3+, performance analysis of the response to TCs, construction of the paper-based sensor, and investigation of its visual identification. Overall, this "visible" integrated chemistry experiment is expected to promote the development of comprehensive experimental skills and research capabilities of students because it involves a strongly comprehensive process and simple operation and exhibits high feasibility. [ABSTRACT FROM AUTHOR]

The final exam is a very important part of the course teaching quality evaluation. Therefore, we analyzed the final examination paper of analytical chemistry 1 in our university. Then, we discussed the problems existing in the course, and formed the strategic thinking on the curriculum reform. Furthermore, we analyzed the elements of paper generation and quality assurance of the final exam. [ABSTRACT FROM AUTHOR]

This paper summarizes the current safety status of chemical science popularization activities and recommends that chemists prioritize safety from the outset of experiment design. It suggests conducting thorough safety assessments and minimizing the use of flammable, toxic, corrosive, and irritant chemicals. By fundamentally ensuring the safety of science popularization experiments, this paper serves as a reference for colleagues involved in science popularization. [ABSTRACT FROM AUTHOR]

Starting with the emotional response of university students to Li Bai's poems after watching the film "The Longest Day in Chang'an", this paper delves into the concept of entropy and the principle of entropy increase. By introducing the origin and significance of entropy, the paper aims to elucidate the contents and connections of the three laws of thermodynamics. It further explores the implications of the principle of entropy increase on both life and everyday living. The paper reveals that the entire history of human evolution and the development of life is a narrative of combating entropy. To live a meaningful life, one must continuously strive against entropy, breaking free from comfort zones and maintaining self-discipline. [ABSTRACT FROM AUTHOR]

Kinetic isotope effect (KIE) has emerged as a new topic in chemistry competitions both domestically and internationally in recent years. This paper elucidates the origins of first-order and second-order KIE, starting from the perspective of classical transition state theory, based on the potential energy curve and zero-point vibration energy. The role of KIE in the study of reaction mechanisms is briefly discussed. By analyzing relevant exam questions from both domestic and international chemistry competitions, the examination perspectives on KIE are identified, highlighting the continuity between domestic and international competitions. Finally, this paper offers reflections and suggestions for teaching KIE in the context of competitive exams, providing valuable insights and references for educators involved in competition training. [ABSTRACT FROM AUTHOR]

With the rapid development of computer technology, the role of software tools in chemical education and research is becoming increasingly prominent. This paper takes Mathematica software as an example to explore its application in the visualization of physical chemistry formulas. By using several typical examples, such as the visualization of the van der Waals equation of state, atomic orbitals and electron cloud shapes, and chemical reaction rate equations, this paper provides new perspectives and methods for teaching and research in physical chemistry. Through interactive learning mode, students can not only observe and understand the physical significance behind theories through intuitive graphics but also stimulate their interest, enhancing their initiative and creativity in learning. [ABSTRACT FROM AUTHOR]

Based on the construction and practice achievements of the National Experimental Teaching Demonstration Center of Applied Chemistry (University of Jinan) from 2018 to 2022, this paper summarized and analyzed the effectiveness and experience of the center’s development. The analysis covers aspects such as management and operation mechanisms, teaching reform research, experimental teaching conditions, faculty development, and the effectiveness of demonstration and leadership. The paper also identifies existing problems and shortcomings of the center and provides an outlook on future development plans. The demonstration center has adopted a "three-stage" training methodology, implemented "ability-literacy oriented" experimental courses, and built a comprehensive innovation and practice platform integrating "production, learning, research and innovation". The demonstration center effectively cultivated the practical ability and innovative spirit of students and played an important role in the demonstration radiation of enterprises, public institutions and local colleges and universities. [ABSTRACT FROM AUTHOR]

Organoid-on-a-chip technology emerges as a groundbreaking interdisciplinary innovation of the 21st century, cultivating human cells in three-dimensions ex vivo to form organoids. These organoids replicate human physiological and pathological conditions as well as functions akin to human organs. Integratable with electronic chips, this technology finds extensive applications in drug screening, safety evaluation, personalized medicine, in vitro diagnosis. As a recent avant-grade technological advancement, organoid-on-a-chip demonstrates several benefits over traditional cell-based animal testing methods used for drug screening, such as lower costs, better animal welfare, higher precision, and wider applicability. This positions it at the forefront of future drug screening and safety evaluation methodologies. The use of organoid chips in drug screening encapsulates a plethora of inherent biochemical principles. Incorporating organoid-on-chip related knowledge into university curricula plays a significant role in enabling medical and pharmaceutical students to stay abreast of the forefront in drug development and to grasp biochemical concepts in a more systematic manner. Therefore, this paper begins with the concept of organoid chips, exploring their design, principles, and applications in drug screening, while anticipating their future developments. Simultaneously, it focuses on the multidisciplinary interdisciplinary characteristics of organoid chips in fields, such as cell biology, medicinal chemistry, biochemistry, and electronic information science, analyzing the inherent biochemical principles. In line with this, the paper proposes an 8 lecture-course design for the Biochemistry curriculum, aiming to meet the evolving educational demands for nurturing innovative talents in the pharmaceutical sector. [ABSTRACT FROM AUTHOR]

This paper analyzes the issues in the digital information construction of experimental teaching demonstration center in colleges and universities, highlighting the significance of education digitalization in the reform and teaching of chemistry experiments. Based on the characteristics of the chemical experimental center in Heilongjiang university, the paper summarizes the digital construction and exploration of the center in three levels: digital information platform, digital teaching resources and digital teaching mode. The center has developed digital teaching resources including chemical experiment safety with clear guidance and three-dimensional structure, virtual simulation with advanced system and comprehensive innovation, and basic chemical experiment with rich content and various forms. The blended teaching modes combining online merge-offline hybrid chemistry experiment safety, theory class, offline experiments, virtual simulations, and MOOCs have been established. The results achieved provide valuable insights for the digital construction of similar university laboratories. [ABSTRACT FROM AUTHOR]

Mastery of professional English reading and writing is a pivotal skill for graduates embarking on independent research. In our approach, we implemented an online flipped classroom teaching, where doctoral freshmen specializing in polymer science take turns presenting a representative paper recently published within their research group. The presentation follows the fundamental structure of academic papers. Concurrently, fellow students are tasked with crafting academic summaries and offering constructive feedback on these papers. Over three years, this innovative flipped classroom teaching has achieved favorable educational outcomes. [ABSTRACT FROM AUTHOR]

The rapidly evolving landscape of scientific research, marked by interdisciplinary integration, offers promising opportunities for addressing complex scientific problems. As the advancements in modern science and the breakthroughs in core techniques put forward new requirements for the training of high-level compound talents, this paper focuses on the construction of a composite talent cultivation model within the graduate education of chemistry. By analyzing the main challenges encountered during the interdisciplinary process, this study draws from practical cases within the Laboratory for Functional Polymer Materials and Devices in the Department of Chemistry of Renmin University of China. It proposes a core educational philosophy of being led by demand, adopting tailored teaching strategies, and integrating humanities and science. Through collaborative ventures across disciplines between chemistry and materials science, agronomy, forestry, medicine, engineering, and archival science, this paper explores a new way to cultivate compound talents with comprehensive interdisciplinary competencies. [ABSTRACT FROM AUTHOR]

Starting from the current status of professional English courses for graduate students majoring in materials and chemical engineering, this paper summarizes the teaching content of professional English based on various research fields and directions. It delves into constructing a multi-dimensional interactive teaching model combining ‘split classroom + flipped classroom’ methodologies, utilizing modular and progressive teaching strategies. This model aims to help students build a structured understanding of professional English knowledge, thereby fostering their enthusiasm and self-motivation in learning, and enhancing their learning efficiency. The multi-dimensional interactive teaching model enriches the learning experience by increasing the practicality and interactivity of the learning process, and extends the temporal and spatial interaction between teachers and students to its fullest potential. Utilizing the benefits of MOOCs both before and after class ensures the consolidation of learning outcomes. The paper also discusses enhancing student autonomy through various group activities, including ‘simulated academic seminars’, ‘English Pictionary’, and ‘research posters’. The findings of this study offer vital theoretical and practical insights for the reform of professional English curricula in the field. [ABSTRACT FROM AUTHOR]

Graduate education plays an irreplaceable and pivotal role in the path to achieving socialist modernization. Focusing on the characteristics of the Chemistry major, this paper examines the current state of academic master’s education in this field including inadequate emphasis on fundamental knowledge, insufficient cultivation of scientific literacy, and a lack of career planning education among graduates. In response to these challenges, this paper proposes a series of strategies. [ABSTRACT FROM AUTHOR]

Against the backdrop of China’s scientific and technological advancement demands and the transformative epoch of the new century, particularly as the nation progresses from a “manufacturing giant” to a “manufacturing powerhouse”, this paper discusses the evolving mission of instrumental analysis course. The mission includes fostering students’ innovation consciousness and creativity at the level of basic chemistry education, and supporting the industrial development of national instrumentation. To fulfill this ambitious mission, the teaching of instrumental analysis should emphasize its pivotal role in bridging various chemical sub-disciplines and other fields, serving as an excellent introduction to intelligent manufacturing education. The paper also addresses the pedagogical challenges in training a generation proficient in understanding, using, and innovating in instrumentation to advance the industry, which is essential to better adapt to societal development trends and national strategic demands. Strategies to address these challenges within educational practices are also proposed. [ABSTRACT FROM AUTHOR]

The cultivation of high-level innovative talents in basic disciplines, particularly under the current situation, faces significant opportunities and challenges. Addressing the specific issues encountered in this context, this paper explores the intrinsic relations between ideological and political education and professional education. Drawing from the theoretical perspective in educational science, psychology, the Marxist Concept of Labor and Marxist methodology, and incorporating practical approaches from the Department of Chemistry at Tsinghua University, the paper explores ways to overcome the challenges in the cultivation of high-level innovative talents in basic disciplines, especially in chemistry, through the effective implementation of ideological and political education. [ABSTRACT FROM AUTHOR]

The capacity for scientific research and innovation in chemistry graduate students is crucial for national scientific advancement and socio-economic development. This paper examines the current state of the cultivation of scientific research innovation ability in chemistry graduate students at local universities. It discusses approaches to foster scientific research and innovation ability from two perspectives: the training management within the college and the mentorship methods of advisors, drawing on practical experience. The paper also presents preliminary successes in enhancing the research innovation abilities of graduate students, offering insights that could benefit similar programs in local universities. [ABSTRACT FROM AUTHOR]

Chirality permeates every aspect of life's beauty. To foster a proper understanding of chirality among the public, this paper employs the differences between L- and D-tartaric acid enantiomers to design experiments for popularization of science: (1) Construction of molecular models of tartaric acid enantiomers; (2) Cultivation and observation of tartaric acid crystals; (3) Observation of the optical activity of tartaric acid solutions; (4) Recognition of chirality in tartaric acid molecules. These experiments range from basic to advanced, featuring simple operation, obvious phenomena, interactive communication, and have received positive feedback in the early stages of implementation. [ABSTRACT FROM AUTHOR]

Chlorophyll is a compound that can be found everywhere in our daily lives. When exposed to ultraviolet light, chlorophyll emits red fluorescence, which holds significant value in scientific research and production. This paper aims to popularize a hands-on experiment that introduces the fundamental concepts of chlorophyll, the mechanism behind its fluorescence, laboratory and household preparation methods, experimental characterization, and potential applications. By doing so, it enables the public to better comprehend the principles of chlorophyll fluorescence, experimental procedures, and the promising prospects for its application, fostering a deeper appreciation for the beauty of chemistry and its essential contributions to societal development. [ABSTRACT FROM AUTHOR]

Pickering emulsion, an emulsion stabilized by colloidal solid particles at the water-oil interface, is a highly intriguing subject in scientific research, daily life, and industrial production. This paper aims to demystify the concept of "Pickering emulsion". It delves into the fundamental principles, formation mechanisms, preparation techniques, laboratory findings, and applications in the field of photocatalysis. By doing so, it provides college students, teenagers, elementary school students, and even the general public with an opportunity to discover the beauty and wonders of chemistry through the lens of Pickering emulsion. [ABSTRACT FROM AUTHOR]

We have developed a homemade sugar-based light experimental platform by specially designing an optical analyzer, allowing us to observe paper-cut art and dynamic rainbow boards. Moreover, by substituting the central sugar solution with sugar building blocks, we can create neon-colored building blocks. This apparatus is easy to set up and operate, with a clear and concise principle, meeting the requirements of popular science activities for safety, flexibility, and engaging demonstrations. Through observing the shifting colors, students can personally delve into the mysteries of the interaction between light and optically active molecules, thereby enhancing their appreciation of the beauty of physical chemistry. [ABSTRACT FROM AUTHOR]

In the ever-evolving landscape of modern technology, the exploration and advancement of novel materials have garnered significant interest and acclaim. This paper takes an engaging narrative approach, portraying a dialogue between a small wearable sensor and Reduced Graphene Oxide (RGO), to elucidate the intricacies of RGO's preparation, application, and development. As a new composite material, RGO has emerged as a compelling contender in various technological fields. [ABSTRACT FROM AUTHOR]

In recent years, national authorities and associated departments have intensified their efforts to combat the proliferation of counterfeit and substandard products. Such products not only hinder the nation's economic growth but also pose significant risks to the interests of brands and consumers. The emergence of anti-counterfeiting materials has become a cornerstone in advancing scientific anti-counterfeiting measures. Through a brief narrative, this paper categorizes pivotal anti-counterfeiting materials, delves into their underlying principles, and discusses their potential applications, with a special emphasis on optical anti-counterfeiting materials. [ABSTRACT FROM AUTHOR]

In the wake of rapid industrial development, the ever-increasing emissions of carbon dioxide (CO2) have given rise to environmental concerns, including climate change. Harnessing CO2, an abundant, non-toxic, and costeffective C1 resource, through chemical catalysis to produce high-value-added chemicals presents a viable solution for the sustainable utilization of CO2 resources. This paper employs a first-person perspective and a personification approach to introduce the adsorption and activation mechanisms of CO2 molecules by several typical catalysts. [ABSTRACT FROM AUTHOR]

Incorporating the backdrop of the novel Charlie and the Chocolate Factory, this paper provides a brief introduction to the chemical composition of chocolate. It offers a user-friendly explanation of several mainstream 3D printing technologies and their principles, discussing the advantages of food 3D printing in the food manufacturing industry. Furthermore, it places a particular focus on the historical development, working principles, and sensory aspects of chocolate 3D printing. By merging familiar everyday foods with cutting-edge scientific advancements, this article is presented in an easily understandable and reader-friendly manner, effectively serving the purpose of popularizing science. [ABSTRACT FROM AUTHOR]

The rapid development of chemistry and related industries in modern society has led to increasingly severe water environmental pollution problems, demanding higher standards for water quality testing and treatment technologies. However, detecting and treating low-concentration or trace pollutants remains challenging. To solve this problem, scientists have developed a new class of intelligent materials: micro/nanorobots. Based on their controllable motility, precise recognition, efficient adsorption, and in situ degradation capabilities, micro/nanorobots show promise in effectively detecting and treating pollutants in water. To enhance readers' understanding of the cutting-edge developments in micro/nanorobots for water pollution detection and treatment, this paper presents the concept of a micro/nanorobot organization called the "Assassin Alliance", providing a brief and engaging overview of their applications and scientific mechanisms in water environment detection, monitoring, and treatment. [ABSTRACT FROM AUTHOR]

Against the backdrop of the Snowflake Castle collapse and through the dialogue between Little Snowflake and the Doctor, this paper introduces the main components, principles of action, and applications of snow melting agents. Using snow melting agents as an example, it further explores the concept of colligative properties of dilute solutions, their related applications, and the methods of using snow melting agents. The aim is to familiarize readers with the concept of colligative properties in physical chemistry and to promote the concept of environmental protection. [ABSTRACT FROM AUTHOR]

Fire, the most frequent disaster in human society, often results in property damage and casualties, posing a significant threat to public safety and societal development. While flames and smoke are commonly associated with fires, few realize that toxic gases generated during combustion are among the primary causes of fire-related injuries and fatalities. Understanding the "chemical secrets" within fire smoke becomes crucial. This paper employs an anthropomorphic and exaggerated narrative approach, depicting a tale of planetary exploration, to educate readers on the toxic gases commonly encountered in fires and how to safeguard against their harmful effects. [ABSTRACT FROM AUTHOR]

Although bats are notorious for their association with poison, they are genuine teachers and friends to humans. They play indispensable ecological roles in pest control, seed dispersal, and plant pollination, and hold significant economic value. Furthermore, they are crucial for research in health and longevity, as well as in biomimetics. As the only flying mammals, bats have always been subjects of human observation and study. The discovery of the bat sonar system illustrates the complex and persistent human quest for truth. Bats possess the extraordinary ability of echolocation, which has inspired the creation of bat robots. The future applications and development prospects for these technologies are vast. Additionally, bats are a symbol of good fortune in Chinese culture, deserving of our eternal praise. This paper discusses the advantages and disadvantages of bats, their body structure, living habits, night vision abilities, and the related knowledge of bat robots. The aim is to guide students to comprehensively and critically understand bats, cultivate critical thinking skills, appreciate the marvels of biomimicry, inherit the essence of traditional Chinese good fortune culture, and establish the concept of harmonious coexistence between humans and nature. [ABSTRACT FROM AUTHOR]

Since its advent, aspirin has garnered wide attention. With modern medical research and trials focusing on its chemical properties and clinical mechanisms, the scope of its clinical applications has been continuously expanded. This paper, written from a first-person perspective and in the form of a novel, introduces the history, mechanism of action, and modern research developments of aspirin. Additionally, it provides an outlook on its future development to offer readers a deeper understanding of its applications. [ABSTRACT FROM AUTHOR]

Chinese mineral medicines, rooted in ancient alchemical practices, constitute one of the three major categories of traditional Chinese medicine. Primarily composed of inorganic compounds, they serve as significant subjects of study in the realm of inorganic element chemistry within Chinese pharmaceutical education. Through a narrative tale, this paper introduces several essential Chinese mineral medicines, illustrating their chemical transformations during the preparation process. By doing so, it aims to familiarize the audience with the properties of relevant inorganic elements and their therapeutic effects in mineral medicines, thereby fostering a deeper understanding of the interconnectedness between Chinese pharmacology and chemistry. [ABSTRACT FROM AUTHOR]

Perming is a popular hair styling technique and a way for people to pursue beauty. Through a fictional visit to a hairdressing exhibition, this paper introduces the brief history of perming, the chemical composition of hair, and the principles behind chemical perms. The aim is to demonstrate the importance of chemistry to human life, help people understand the pros and cons of perming in a balanced way, and promote a proper attitude to perming. [ABSTRACT FROM AUTHOR]

Sauerkraut, also known as pickled vegetables, is a traditional fermented food that is loved by many consumers for its unique flavor and rich nutritional value. This paper, written in the first person, explores the composition, taste, preparation process, and underlying chemical principles of sauerkraut. It also discusses the health effects and dietary recommendations for consuming sauerkraut. The aim is to promote traditional Chinese food culture and the ancient art of fermentation, enhance awareness of food safety and healthy eating, cultivate students' scientific literacy and practical skills, and foster a greater appreciation for chemistry. [ABSTRACT FROM AUTHOR]

Drawing inspiration from the recent trend of Sauce-Flavored Latte, this paper ingeniously explores the dual narrative of "wine meets coffee", unraveling the anthropomorphic tale of ethanol and caffeine. Delving into their chemical properties, physiological mechanisms, and metabolic pathways, the narrative aims to enlighten readers about the underlying chemistry and health implications, enabling a more informed and moderate consumption of beverages. [ABSTRACT FROM AUTHOR]

Liquor, the essence of heaven and earth and a carrier of culture, embodies history and life in every sip. It plays a pivotal role in various social settings, transcending its role as a mere beverage to symbolize people's aspirations for a better life. This paper uses a lively dialogue format to elucidate the five main processes of liquor brewing: ingredient selection, saccharification, fermentation, distillation, and aging. Emphasis is placed on the key chemical components and reactions involved in these processes. The artistry of liquor brewing reflects a profound cultural heritage and craftsmanship. Tasting liquor not only enriches sensory experience but also deepens our understanding of life's philosophy and wisdom. Just as good liquor requires aging for full flavor, life too benefits from the richness that comes with experience and time. [ABSTRACT FROM AUTHOR]

During the hydrolysis process of caprolactam to produce polyamide 6, a considerable number of cyclic oligomers are inevitably formed. Among these, the cyclic dimer, with its propensity for aggregation, poses significant challenges to both process safety and product quality. Thus, understanding the characteristics of cyclic oligomers is crucial for ensuring process safety and enhancing product quality. This paper employs a personification approach to vividly describe the properties of cyclic oligomers, elucidating the formation mechanism of cyclic dimers, delineating the behavior of crystal phase transitions, and highlighting the detrimental effects of cyclic dimers on industrial production. Moreover, it proposes methods for process optimization. [ABSTRACT FROM AUTHOR]

Vitamin D, often referred to as the "sunshine vitamin", plays an indispensable role in maintaining human health. This paper vividly introduces the formation, discovery, biological functions, and everyday applications of vitamin D from a chemical perspective. Through a deeper understanding of vitamin D, we can better recognize and learn how to judiciously utilize this essential nutrient to safeguard our health. [ABSTRACT FROM AUTHOR]

Throughout history, mankind has continuously explored the realms of matter and life, from the smallest dust particles to the vast expanses of the universe. Through systematic exploration, it has been revealed that the complex world we inhabit is constructed from 118 chemical elements, arranged and combined according to specific rules. As the fundamental building blocks of all matter, the chemical elements hold secrets that have been gradually unveiled through their origin, cognitive understanding, and applications across different periods. This paper aims to uncover the mysteries surrounding chemical elements from various perspectives. [ABSTRACT FROM AUTHOR]

Course assessment plays a crucial role in improving teaching quality and evaluating the quality of talent development in higher education institutions. However, Hanjiang Normal University, a local institution, faces challenges such as a singular assessment approach, low student engagement, and insufficient innovation in its elective courses. This paper explores the reform of the assessment model for elective courses, taking the example of the surfactant chemistry course. By adopting a three-dimensional approach involving teacher evaluation, peer-to-peer assessment, and individual contribution, and with the core concept of scientific success, the paper introduces and implements the "TGI" assessment model (Teacher Evaluation, Group-Group Mutual Evaluation, and Individual Contribution Ratio). This model breaks away from traditional assessment methods, enhancing student engagement and initiative, stimulating creativity, activating innovative thinking, and fostering comprehensive student capabilities. The "TGI" assessment model holds significant implications for improving course teaching quality and serves as a valuable reference for the evaluation of other elective courses. [ABSTRACT FROM AUTHOR]

"Quantitative Analytical Chemistry" is a compulsory foundational course for students in relevant majors at agricultural and forestry universities. It is offered in various fields such as agriculture, forestry, animal science, biology, food science, environmental science, and biology. Under the background of the construction of "new agricultural science", this paper addresses several pain points in the teaching process, including the misalignment of limited teaching hours with extensive course content, lack of integration between the course's subject matter and the concept of "New Agricultural Sciences", disconnection between teaching content and ideological and political education, monotony in teaching modes and evaluation methods, and scarcity of teaching resources. The paper proposes solutions and suggestions in terms of teaching content, teaching design, teaching modes, teaching resources, ideological and political education, and evaluation methods, aiming to provide a reference for the reform of the "Quantitative Analytical Chemistry" course. [ABSTRACT FROM AUTHOR]

Combining the fundamental aspects of teaching activities in chemistry and emphasizing safety, environmental friendliness, and visualization, this paper explores potential technical features and applications of virtual reality technology in experimental teaching and scientific research. In contrast to simulations, virtual reality technology, with its interactive and immersive experiences, can vividly depict the procedural aspects of chemical experimental education and training. [ABSTRACT FROM AUTHOR]

In response to the challenges of numerous knowledge points and fragmented concepts in the structural chemistry course, as well as the difficulty for students to establish a disciplinary framework and a comprehensive knowledge system, this paper proposed a logical framework and knowledge graph, based on the thematic thread of "Schrödinger equation approximation models - core concepts - simple applications". This framework includes six branches: particle in box model, single electron hydrogen-like atoms, multi-electron atoms, H2 + molecular, H2 molecules, and multi-atom molecules. By reconstructing fragmented knowledge and forming a complete knowledge chain, this approach aims to help students understand the logical relationships, generation context and interconnections of important concepts, and provides them with a context for knowledge transfer, ultimately facilitating their understanding and application of knowledge. [ABSTRACT FROM AUTHOR]

This paper presents the development of an ideological and political education teaching system for nonchemical majors in geology and materials science, based on the knowledge system of physical chemistry. The teaching system is centered around three main themes: correct worldview and scientific methodology, scientific exploration and scientific spirit, and humanistic literacy and cultural inheritance. By integrating the reconstructed physical chemistry knowledge system with ideological and political education, the teaching design aims to shape students' values. The successful integration of ideological and political elements into teaching practice has resulted in positive teaching outcomes. [ABSTRACT FROM AUTHOR]

This paper outlines a comprehensive, inquiry-based instrumental analysis experiment to integrate molecular imprinting technology into undergraduate education. The experiment commences with the fabrication of a streptomycin molecular imprinting electrochemical sensor (STR-MIM/GCE) via the electropolymerization method. Subsequent characterization of the sensor employs cyclic voltammetry and scanning electron microscopy. Utilizing potassium ferricyanide as a probe, a differential pulse voltammetry technique is developed for the electrochemical quantification of streptomycin, with milk serving as a real-world sample for testing. This experiment involves the modification and characterization of electrode surface, alongside the development and application of electrochemical analysis methods. The experiment uses readily available and cost-effective reagents, avoids the need for sophisticated instrumentation, and is designed with a duration suitable for undergraduate coursework. [ABSTRACT FROM AUTHOR]

Cyclopropenones, possessing Hückel aromaticity, are three-membered cyclic compounds that serve as ideal substrates for C-C bond activation. This paper provides a comprehensive summary of the organic chemical reactions involving cyclopropenones through the β-carbon elimination pathway, thus offering valuable references for the study of transition metal-catalyzed C-C bond activation reactions and the transformation applications of cyclopropenones. [ABSTRACT FROM AUTHOR]

The new era is characterized by knowledge production diversity, interdisciplinary and collaborative innovation. Engineering universities urgently need to update their scientific talent cultivation mechanisms to stay aligned with these evolving demands. Over the past twenty years, the Department of Materials Chemistry at Harbin Institute of Technology has responded to the major strategic needs of national aerospace. It has developed a unique “Big Chemistry” approach to science education, characterized by its aerospace and defense focus and a “Trinity and Multidimensional Integration” model that combines multiple disciplines. This paper provides a systematic exploration and implementation of this model, detailing the formation process, conceptual framework, construction of a molecular knowledge system, and the cultivation of cross-disciplinary practical skills through “Triple mentorship and Triple Practice”. [ABSTRACT FROM AUTHOR]

This paper presents a review of the applications of ionic liquids (ILs) in inorganic synthesis. The main functions of ILs used in inorganic synthesis are discussed briefly, such as the template agents, solvents, and precursors. Moreover, the interaction type between ILs and the surface of targets, and the adsorption selectivity of ILs guided by “geometric matching principle” are both briefly described. [ABSTRACT FROM AUTHOR]

This paper introduces a comprehensive applied chemistry experiment on the synthesis and application of an active ester cross-linking agent. The experiment involves the preparation of decanedioic acid-N-hydroxysuccinimide ester (NHS-DA), identification of its structure, and its application in improving collagen thermal stability. Initially, NHSDA is synthesized from decanedioic acid, and N-hydroxysuccinimide using 1-(3-dimethylaminopropyl)-3- ethylcarbondiimide hydrochloride as a condensing agent, achieving a yield of approximately 85%. The product’s structure is confirmed through nuclear magnetic resonance and Fourier-transform infrared spectroscopy, indicating the successful synthesis of high-purity NHS-DA. Subsequently, NHS-DA is applied to cross-link collagen sponge, with differential scanning calorimetry demonstrating enhanced thermal stability, thus promoting its application potential. The experiment is characterized by mild conditions, rapid reaction rates, high yields, and the recyclability of waste acetone, incorporating the use of various advanced instruments. It effectively integrates theoretical knowledge with practical application, fostering students' innovative thinking and expanding their scientific perspectives. [ABSTRACT FROM AUTHOR]