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The hormetic effects of antibiotics on Scenedesmus sp. werecompared with nitrogen limitationstrategies. We observed that 100 and 1000 nM supplementation with antibiotics could stimulate bothα-linolenic acid (ALA) and α-tocopherol productivities. Although nitrogen limitation had the best overall biomass and chlorophyll a productivity (∼ 43.83 % and 109.07 % ↑, respectively), tetracycline (1000 nM, T 1000 ) was the best antibiotic for biomass (∼ 12.08 % ↑) while erythromycin (100 nM, E 100 ) was the best for chlorophyll a (∼ 52.19 % ↑). The antibiotics also triggered accumulation of monounsaturated fatty acids, like C16:1 and C18:1, which the nitrogen stress strategies failed to achieve. Rifampicin (100 nM, R 100 ) and E 100 , with ∼3.92-4.14-fold increase in α-tocopherol and ∼4.41-4.81-fold increases in ALA productivities, reiterate the role of moderate stresses in stimulating high-value metabolites in microalgae. Our results provide an alternative medium engineering strategy for stimulating algal metabolites without compromising on the biomass. However, further studies are underwaytosafely remediate cultivation effluents and elucidate the physiological mechanisms of individual antibiotics to develop a more holistic strategy for targeted algal farming., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Selectfluor, [1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)], is a highly valuable reagent in contemporary chemistry, serving not only as an electrophilic fluorinating agent but also as an effective catalyst in the synthesis of various pharmaceutically relevant heterocycles. This review article seeks to present a comprehensive overview of the significant heterocyclic ring formations facilitated by selectfluor. Both metal-free and metal-catalyzed recent advancement on selectfluor mediated cyclisation processes are discussed in this review mainly over last eight years (2017-April 2024)., (© 2025 The Chemical Society of Japan and Wiley-VCH GmbH.)

Smart luminescent materials have drawn a significant attention owing to their unique optical properties and versatility in sensor applications. These materials, encompassing a broad spectrum of organic, inorganic, and hybrid systems including quantum dots, organic dyes, and metal-organic frameworks (MOFs), offer tunable emission characteristics that can be engineered at the molecular or nanoscale level to respond to specific stimuli, such as temperature, pH, and chemical presence. Recent advancements have been driven by the integration of nanotechnology, which enhances the sensitivity and selectivity of luminescent materials in sensor platforms. The development of photoluminescent and electrochemiluminescent sensors, for instance, has enabled real-time detection and quantification of target analytes with high accuracy. Additionally, the incorporation of these materials into portable, user-friendly devices, such as smartphone-based sensors, broadens their applicability and accessibility. Despite their potential, challenges remain in optimizing the stability, efficiency, and biocompatibility of these materials under different conditions. This review provides a comprehensive overview of the fundamental principles of smart luminescent materials, discusses recent innovations in their use for sensor applications, and explores future directions aimed at overcoming current limitations and expanding their capabilities in meeting the growing demand for rapid and cost-effective sensing solutions., (© 2025 Wiley‐VCH GmbH.)

Visible-light-mediated reactions have recently emerged as a powerful strategy for the synthesis of diverse organic molecules under mild reaction conditions. Usually, the reactions are performed at room temperature and thus sensitive functional groups remain unaffected. Thus, this protocol has received intense interest from academia as well as industries. The heterocycles, in general, are of much interest because of their biological activities and application in therapeutics. The Oxygen- and Sulfur-containing heterocyclic compounds have recently attracted attention as these compounds showed promising activities as anti-cancer drugs, antibiotics, antifungal and anti-inflammatory agents among other applications. The synthesis of this class of compounds by efficient and greener routes has become an important target. This review highlights the various procedures for the synthesis of these compounds and their derivatives under visible light-induced reactions. The green aspects and mechanism of each procedure have been discussed., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)