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Diving into Unknown Waters: Water-Soluble Clickable Au Nanoclusters Protected with N-Heterocyclic Carbenes for Bio-Medical Applications.
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The use of gold nanoclusters in biomedical applications has been steadily increasing in recent years. However, water solubility is a key factor for these applications, and water-soluble gold nanoclusters are often difficult to isolate and susceptible to exchange or oxidation in vivo. Herein, we report the isolation of N-heterocyclic carbene (NHC)-protected atomically precise gold nanoclusters functionalized with triethylene glycol monomethyl ether groups.
View Article and Find Full Text PDFNitrogen-doped carbon quantum dots from pumpkin for the sensing of nifuratel and temperature.
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College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619 PR China.
Herein, nitrogen doped carbon quantum dots (N-CQDs) were synthesized using a hydrothermal strategy. The raw materials for the preparation of N-CQDs were sourced from pumpkin and melamine. The N-CQDs suggested fascinating water solubility, favorable UV and salt resistance stability.
View Article and Find Full Text PDFFluorescent CdTe/ZnS Core/Shell Quantum Dots for Sensitive Metabolite Detection in Real Samples.
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Scientific and Technological Researches Application and Research Center, Duzce University, Duzce, Türkiye.
This study highlights the aqueous synthesis of CdTe/ZnS core/shell quantum dots (QDs) and their application as fluorescence sensors for detecting critical metabolites, including folic acid, glucose, and vitamin C, in real biological samples. The synthesized QDs exhibit excellent quantum efficiency, stability, and biocompatibility, enhanced by mercaptopropionic acid (MPA) ligands, enabling eco-friendly and accurate sensing. Detection limits of 0.
View Article and Find Full Text PDFPectin/gelatin-based bionanocomposite containing modified graphene quantum dots and carnauba wax as functional fillers for food packaging applications.
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Nutrition Research Center, Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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View Article and Find Full Text PDFEngineering hydrogen bonding at tyrosine-201 in the orange carotenoid protein using halogenated analogues.
Photosynth Res
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Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia.
The Orange Carotenoid Protein (OCP) is a unique water-soluble photoactive protein that plays a critical role in regulating the balance between light harvesting and photoprotective responses in cyanobacteria. The challenge in understanding OCP´s photoactivation mechanism stems from the heterogeneity of the initial configurations of its embedded ketocarotenoid, which in the dark-adapted state can form up to two hydrogen bonds to critical amino acids in the protein's C-terminal domain, and the extremely low quantum yield of primary photoproduct formation. While a series of experiments involving point mutations within these contacts helped us to identify these challenges, they did not resolve them.
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