The combination of chiral- and nano-technologies is potentially one of the most promising strategies for "green" catalytic conversions aimed at fine-chemical production. This paper reviews the most representative examples and highlights recent achievements in the field of enantioselective processes catalyzed by metal nanoparticles (MNPs), with a view to the potential of the methodology and future perspectives. Applications are described according to the nanocatalyst type used, either liquid-phase suspensions or solid-supported systems. The focus is on the design of the catalysts, their preparation and characterization, applications in catalysis and mechanistic studies.
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http://dx.doi.org/10.1039/c002051f | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Department of Semiconductor Engineering, Gyeongsang National University, Jinjudae-ro 501beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea.
Organic photodetectors (OPDs) are cheaper and more flexible than conventional photodetectors based on inorganic precursors, but their wider commercial application is limited by their low electron extraction efficiency under reverse bias conditions (when operating under photoconductive mode). Zinc oxide (ZnO) has shown promise as an electron transport layer for OPDs owing to its wide band gap, but its electron extraction efficiency has been limited by issues such as photoinstability and the formation of surface detects. This study investigated the effects of doping ZnO nanoparticles with indium gallium (i.
View Article and Find Full Text PDFBMC Microbiol
January 2025
Department of Medical Microbiology and Immunology, Faculty of Medicine, Benha University, Benha, Egypt.
Background: Novel platforms using nanotechnology-based medicines have exponentially increased in our daily lives. The unique characteristics of metal oxide and noble metals nanoparticles make them suitable for different fields including antimicrobial agents, cosmetics, textiles, wound dressings, and anticancer drug carriers.
Methods: This study focuses on the biosynthesis of small-sized SNPs using exo-metabolites of Fusarium oxysporum via bioprocess optimization using Plackett-Burman (PBD) and central composite designs (CCD) while evaluating their multifaceted bioactivities.
Nat Chem
January 2025
Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials (2011-iChEM), College of Chemistry and Materials, Fudan University, Shanghai, P. R. China.
The synthesis of mesoporous metal-organic frameworks (meso-MOFs) is desirable as these materials can be used in various applications. However, owing to the imbalance in structural tension at the micro-scale (MOF crystallization) and the meso-scales (assembly of micelles with MOF subunits), the formation of single-crystal meso-MOFs is challenging. Here we report the preparation of uniform single-crystal meso-MOF nanoparticles with ordered mesopore channels in microporous frameworks with definite arrangements, through a cooperative assembly method co-mediated by strong and weak acids.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Iran.
This study investigates the biosynthesis of iron oxide nanoparticles (FeONPs) using the cell-free supernatant of Pseudomonas fluorescens. The synthesized FeONPs were characterized through UV-VIS, XRD, FTIR, FESEM, EDX, TEM, BET, and VSM analyses. The XRD results confirmed that FeONPs were successfully synthesized and EDX analysis indicated that iron accounted for 89.
View Article and Find Full Text PDFSci Rep
January 2025
Center for Advanced Materials and Structures, School of Science and Technology, The University of Georgia, 0171, Tbilisi, Georgia.
In this work, cerium dioxide nanostructures were synthesized in an easy sonochemical way. CeO nanoparticles have received much attention in nanotechnology. CeONPs, exhibit biomimetic properties depending on their size, ratio of valency on their surface, and the ambient physico-chemical properties.
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