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Deconstruction of Alkali Lignin and Lignocellulosic Substrates by DY1 Isolated from Rotten Wood.
J Fungi (Basel)
November 2024
Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida 201313, India.
The present study reports the ability of a fungal isolate DY1, obtained from rotten wood, to degrade alkali lignin (AL) and lignocelluloses in an efficient manner. The efficiency of degradation was monitored by measuring the percentage of decolorization and utilizing GC-MS for identifying degradation products at different time intervals (10, 20, 30, and 40 days). The optimal degradation of alkali lignin (AL) was achieved at 0.
View Article and Find Full Text PDFPolar Networks Mediate Ion Conduction of the SARS-CoV-2 Envelope Protein.
J Am Chem Soc
December 2024
Department of Chemistry, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, Massachusetts 02139, United States.
The SARS-CoV-2 E protein conducts cations across the cell membrane to cause pathogenicity to infected cells. The high-resolution structures of the E transmembrane domain (ETM) in the closed state at neutral pH and in the open state at acidic pH have been determined. However, the ion conduction mechanism remains elusive.
View Article and Find Full Text PDFManipulating Toughness and Microstructure in Polyelectrolyte Complex Hydrogels with Competitive Surfactant Micelles.
Langmuir
December 2024
Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China.
Polyelectrolyte complex (PEC) hydrogels provide a promising strategy to develop a class of physically cross-linked networks characterized by exceptional toughness and self-healing properties. However, the precise control of the microstructure and the enhancement of mechanical properties still pose challenges in the field of PEC hydrogels. Herein, we propose a strategy to manipulate the structure of PEC with competitively charged surfactant micelles, leveraging the spatially confined surface charge and excluded volume effects to overcome coacervation issues associated with the PEC, thus achieving a simple one-step preparation of macroscopically uniform and tough PEC hydrogels.
View Article and Find Full Text PDFMechanism of improved cellulase production by Trichoderma reesei in water-supply solid-state fermentation.
Bioresour Technol
December 2024
Sanya Institute of Nanjing Agricultural University, Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:
High production cost of cellulases limits its commercial application on lignocellulose. Solid-state fermentation (SSF) has special advantages of water and energy conservation, however, the lack of free water and water loss during fermentation limits its application. In this paper, a constructed water-supply SSF was used to improve carboxymethyl cellulose activity and filter paper activity of 1.
View Article and Find Full Text PDFHomonuclear decoupled INADEQUATE NMR methods with improved sensitivity and resolution in solid-state NMR.
J Magn Reson
December 2024
Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France. Electronic address:
The two-dimensional (2D) refocused INADEQUATE NMR experiment, which correlates double-quantum (DQ) and single-quantum (SQ) coherences, is widely used to probe the chemical connectivities in solids. Nevertheless, the multiplets along the F dimension reduce the resolution and sensitivity of this experiment. The Composite-Refocusing (CR) technique with two excitation pulses has been proposed to suppress these multiplets in 2D INADEQUATE spectra of liquids.
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