The reaction of Re(CO)(3)(H(2)O)(3)(+) with hen egg lysozyme in aqueous solution results in a single covalent adduct; single crystal X-ray diffraction shows that the rhenium tricarbonyl cation binds to His15 in two significantly populated rotamer conformations.
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http://dx.doi.org/10.1039/b923688k | DOI Listing |
Langmuir
January 2025
Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
Herein, we present a novel liquid crystal (LC)-based sensing platform utilizing microgel-stabilized Pickering LC droplets dispersed in water for simple and label-free detection of proteins in an aqueous environment. This could be achieved by tailoring the surface of 4-cyano-4'-pentylbiphenyl (5CB) LC droplets dispersed in aqueous medium through the interfacial adsorption of poly(-isopropylacrylamide) (PNIPAM) microgel particles, followed by the introduction of model surfactants, such as anionic sodium dodecyl sulfate and cationic dodecyltrimethylammonium bromide. These surfactant/microgel complex-coated LC droplets underwent a configurational transition from radial-to-bipolar under a polarized optical microscope, upon exposure to model proteins, namely bovine serum albumin and lysozyme.
View Article and Find Full Text PDFPoult Sci
December 2024
Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China. Electronic address:
Egg white proteins are widely recognized as excellent natural emulsifiers, yet the molecular mechanisms underlying their emulsification properties remain incompletely understood, particularly regarding the roles of individual proteins in complex natural systems. Using 4D-label-free quantitative proteomics, we systematically investigated protein dynamics during egg white emulsification by comparing egg white (EW) and the aqueous phases of egg white emulsions (EWE-W). Proteomic analysis identified 96 distinct proteins, with 64 showing significant abundance changes during emulsification.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
State Key Laboratory for New Textile Materials and Advanced Processing Technology, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, PR China. Electronic address:
The design of multifunctional, high-performance wearable heaters utilizing textile substrates has garnered increasing attention, particularly in the development of body temperature and health monitoring devices. However, fabricating these multifunctional wearable heaters while simultaneously ensuring flexibility, air permeability, Joule heating performance, electromagnetic interference (EMI) shielding and antibacterial properties remains a significant challenge. This study utilizes phase transition lysozyme (PTL) film-mediated electroless deposition (ELD) technology to deposit silver nanoparticles (Ag NPs) on the cotton fabrics surface in a mild aqueous solution at room temperature, thereby constructing a wearable heater with long-term stability, high conductivity, and exceptional photothermal properties.
View Article and Find Full Text PDFJ Chromatogr B Analyt Technol Biomed Life Sci
January 2025
Department of Chemistry, Faculty of Science, Pamukkale University, Denizli, Turkey. Electronic address:
This paper details the preparation of acrylamide-based supermacroporous cryogels and their application in removing lysozyme from aqueous solutions. N-Vinyl imidazole was copolymerized with acrylamide as a comonomer to impart pseudo-specificity to the cryogels, forming poly(AAm-VIM) cryogel. Characterization studies to assess the physical and chemical properties of the synthesized cryogels involved swelling tests, Fourier Transform Infrared Spectroscopy (FTIR), elemental analysis, Field Emission Scanning Electron Microscopy (FESEM), and Thermogravimetric Analysis (TGA-DTA).
View Article and Find Full Text PDFPharm Res
December 2024
Division of BioTherapeutics, Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands.
Objective: Microfluidics has emerged as a promising technique to prepare nanoparticles. However, the current microfluidic devices are mainly chip-based and are often integrated into expensive systems that lack on-the-spot versatility. The aim of this study was to set up a modular microfluidic system based on low-cost capillaries and reusable, easy-to-clean building blocks that can prepare poly(D,L-lactic-co-glycolic acid) (PLGA) nanoparticles with and without incorporated water-soluble biomacromolecules.
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