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Triangular-shaped Cu-Zn-In-Se-based nanocrystals with narrow near infrared photoluminescence.
Nanoscale
January 2025
Physical Chemistry, TU Dresden, Zellescher Weg 19, 01069 Dresden, Germany.
Tunable optical properties exhibited by semiconductor nanocrystals (NCs) in the near infrared (NIR) spectral region are of particular interest in various applications, such as telecommunications, bioimaging, photodetection, photovoltaics, . While lead and mercury chalcogenide NCs do exhibit exemplary optical properties in the NIR, Cu-In-Se (CISe)-based NCs are a suitable environment-friendly alternative to these toxic materials. Several reports of NIR-emitting (quasi)spherical CISe NCs have been published, but their more complex-shaped counterparts remain rather less explored.
View Article and Find Full Text PDFExploring Moiré Superlattices and Memristive Switching in Non-van der Waals Twisted Bilayer BiOSe.
ACS Appl Mater Interfaces
January 2025
Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
The discovery of moiré physics in two-dimensional (2D) materials has opened new avenues for exploring unique physical and chemical properties induced by intralayer/interlayer interactions. This study reports the experimental observation of moiré patterns in 2D bismuth oxyselenide (BiOSe) nanosheets grown through one-pot chemical reaction methods and a sonication-assisted layer separations technique. Our findings demonstrate that these moiré patterns result from the angular stacking of the nanosheets at various twist angles, leading to the formation of moiré superlattices (MSLs) with distinct periodicities.
View Article and Find Full Text PDFSynthesis and characterization of thermoplastic resin from sugar beet polysaccharides via one-step transesterification.
Carbohydr Polym
March 2025
Institute of Science and Engineering, Kanazawa University, Kakuma machi, Kanazawa 920 1192, Japan. Electronic address:
Lignocellulosic biomass-based plastics provide a sustainable alternative to petroleum-based plastics by converting agricultural by-products into value-added materials, promoting a circular economy. This study investigates the development of thermoplastics from sugar beet pulp (SBP), a by-product rich in cellulose and pectin. A one-pot direct transesterification process was used to fully substitute hydroxy groups in SBP with acyl chains of varying lengths (C2-C10), achieving up to 96 % substitution.
View Article and Find Full Text PDFHyaluronan-decorated CuO-doxorubicin nanodot clusters for targetedly sensitizing cuproptosis in breast cancer via a three-pronged strategy.
Carbohydr Polym
March 2025
Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China. Electronic address:
Cuproptosis shows great prospects in cancer treatments. However, insufficient intracellular copper amount, low-level redox homeostasis, and hypoxic tumor microenvironment severely restrict cuproptosis efficacy. Herein, hydrazided hyaluronan-templated decorated CuO-doxorubicin (CuDT) nanodot clusters (NCs) are developed for efficient doxorubicin (DOX)-sensitized cuproptosis therapy in breast cancer via a three-pronged strategy.
View Article and Find Full Text PDFNew insights into chitosan-Ag nanocomposites synthesis: Physicochemical aspects of formation, structure-bioactivity relationship and mechanism of antioxidant activity.
Int J Biol Macromol
January 2025
Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea. Electronic address:
Herein, a novel approach to the controlled formation of chitosan-Ag nanocomposites (NCs) with different structures and tunable chemical/biological properties was proposed. The chitosan-Ag NCs were obtained using hydrothermal synthesis and varying the concentrations of components. The hypothesis of chitosan-Ag NC synthesis using polysaccharide coils as a "microreactor" system was confirmed.
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