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821 results on '"Wu, Jieying"'

10. Carbon Dot-Gold Nanoparticles Ensemble for Specific Visual Iodide Recognition.

Author

Wu, Peiheng, Zhang, Qiong, and Wu, Jieying

Subjects
IODIDES, METAL nanoparticles, NANOPARTICLES, PRECIOUS metals, TRANSMISSION electron microscopy
Abstract

Iodide has long been recognized as an effective shape-directing agent for facilitating the growth of anisotropic noble metal nanostructures. However, little attention has been paid to the specific interaction between iodide and metal nanoparticles. In this study, we demonstrate the selective recognition of iodide in solution by the carbon-dot-gold nanoparticles (Cdot-AuNPs) ensemble. Irregularly-shaped AuNPs were generated through the reduction of HAuCl4 by citrate ions and stabilized by Cdot at ambient temperature. Upon the addition of iodide, the color of the solution changed from blue to red with the growth of AuNPs to semi-spherical nanoparticles, as confirmed by transmission electron microscopy. The selectivity test validated that only iodide could induce this specific visual response, highlighting a novel interaction mechanism between iodide and AuNPs. The recognition of iodide by this Cdot-AuNPs ensemble showed good resistance toward many environmentally relevant metal ions, particularly Ca2+, providing potential for the identification of iodide ions in real samples. Mixing tetrachloroauric acid, sodium citrate, and bee pollen-derived carbon dots (Cdot) at ambient temperature leads to the preparation of Cdot-AuNPs ensemble for the specific colorimetric recognition of iodide by reshaping the dimensions of the AuNPs. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Smell loss is associated with cognitive impairment in amyotrophic lateral sclerosis patients.

Author

Huang, Xin, Wu, Jieying, Zhang, Nan, Teng, Jinghong, Yang, Qiong, Zhang, Yingshuang, Yin, Tielun, Zhou, Wen, Fan, Dongsheng, and Ye, Shan

Abstract

Background: Smell loss significantly impacts the quality of life in patients. However, there is limited research on smell loss in individuals with amyotrophic lateral sclerosis (ALS), and the correlation between smell loss and cognitive impairment is unclear. This study aimed to investigate the correlation between smell loss and cognition impairment in ALS patients. Methods: The study included 216 ALS patients. The Edinburgh Cognitive and Behavioural ALS Screen (ECAS) and smell identification test specifically for the Chinese population (CSIT) were administered to evaluate participants' cognitive and olfactory function, respectively. Results: After covarying for age, sex, BMI, education level, degree of hunger, dietary bias, eagerness for food, stress, smoking status, alcohol consumption, and upper respiratory tract infection (URTI) or rhinitis, CSIT scores were significantly correlated with ECAS scores (r = 0.162, p = 0.028), especially the ALS‐specific scores (r = 0.158, p = 0.031). Even after excluding patients with URTI or rhinitis, the results were similar. CSIT scores were significantly correlated with ECAS scores (r = 0.224, p = 0.011), especially the ALS‐specific scores (r = 0.205, p = 0.019). Conclusion: In patients with ALS, smell loss is significantly correlated with cognitive impairment, particularly frontotemporal dysfunction. Cognitive dysfunction may lead to worse olfactory performance in ALS patients. [ABSTRACT FROM AUTHOR]

Published
2024
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16. SAR11 bacteria linked to ocean anoxia and nitrogen loss.

Author

Tsementzi, Despina, Wu, Jieying, Deutsch, Samuel, Nath, Sangeeta, Rodriguez-R, Luis M, Burns, Andrew S, Ranjan, Piyush, Sarode, Neha, Malmstrom, Rex R, Padilla, Cory C, Stone, Benjamin K, Bristow, Laura A, Larsen, Morten, Glass, Jennifer B, Thamdrup, Bo, Woyke, Tanja, Konstantinidis, Konstantinos T, and Stewart, Frank J

Subjects
Alphaproteobacteria, Nitrates, Nitrites, Oxygen, Nitrogen, Nitrate Reductases, Gene Expression Profiling, Seawater, Adaptation, Physiological, Phylogeny, Transcription, Genetic, Anaerobiosis, Oxidation-Reduction, Genes, Bacterial, Genome, Bacterial, Oceans and Seas, Denitrification, Aquatic Organisms, Single-Cell Analysis, Adaptation, Physiological, Transcription, Genetic, Genes, Bacterial, Genome, Genetics, General Science & Technology
Abstract

Bacteria of the SAR11 clade constitute up to one half of all microbial cells in the oxygen-rich surface ocean. SAR11 bacteria are also abundant in oxygen minimum zones (OMZs), where oxygen falls below detection and anaerobic microbes have vital roles in converting bioavailable nitrogen to N2 gas. Anaerobic metabolism has not yet been observed in SAR11, and it remains unknown how these bacteria contribute to OMZ biogeochemical cycling. Here, genomic analysis of single cells from the world's largest OMZ revealed previously uncharacterized SAR11 lineages with adaptations for life without oxygen, including genes for respiratory nitrate reductases (Nar). SAR11 nar genes were experimentally verified to encode proteins catalysing the nitrite-producing first step of denitrification and constituted ~40% of OMZ nar transcripts, with transcription peaking in the anoxic zone of maximum nitrate reduction activity. These results link SAR11 to pathways of ocean nitrogen loss, redefining the ecological niche of Earth's most abundant organismal group.

Published
2016

47. Editorial Board Gender Parity Analysis of Influential Dermatology Journals: Cross-Sectional Study (Preprint)

Author

Szeto, Mindy D, primary, Sivesind, Torunn E, additional, Kim, Lori S, additional, O’Connell, Katie A, additional, Sprague, Kathryn A, additional, Nong, Yvonne, additional, Strock, Daniel M, additional, Cao, Annie L, additional, Wu, Jieying, additional, Toledo, Lauren M, additional, Wolfe, Sophia M, additional, Boothby-Shoemaker, Wyatt, additional, and Dellavalle, Robert P, additional

Published
2023
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49. Supplementary Figure 1, Table 1 from Natural product derivative Bis(4-fluorobenzyl)trisulfide inhibits tumor growth by modification of β-tubulin at Cys 12 and suppression of microtubule dynamics

Author

Xu, Wanhong, primary, Xi, Biao, primary, Wu, Jieying, primary, An, Haoyun, primary, Zhu, Jenny, primary, Abassi, Yama, primary, Feinstein, Stuart C., primary, Gaylord, Michelle, primary, Geng, Baoqin, primary, Yan, Huifang, primary, Fan, Weimin, primary, Sui, Meihua, primary, Wang, Xiaobo, primary, and Xu, Xiao, primary

Published
2023
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