When reversible denaturation of chymotrypsinogen is produced at elevated pressures and low temperatures, the transition has been observed to occur very slowly. Electrophoretic separation of the transition mixture at high pressures reveals the presence of two distinct molecular species. This evidence, in conjunction with previously reported spectroscopic data, suggests that a simple two-state model provides a useful description of the transition phenomena at high pressures.
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http://dx.doi.org/10.1016/0005-2795(73)90219-5 | DOI Listing |
Artif Organs
December 2024
Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Background: Normothermic machine perfusion (NMP) is increasingly used to preserve and assess donor livers prior to transplantation. Due to its success, it is expected that more centers will start using this technology. However, NMP may also cause adverse effects.
View Article and Find Full Text PDFTalanta
December 2024
Université de Lorraine, CNRS, LIEC, F-54000, Nancy, France.
There is a growing interest in the development of methods for the detection of nanoparticle (NP) toxicity to living organisms based on the analysis of relevant multidimensional data sets. In particular the detection of preliminary signs of NPs toxicity effects would benefit from the selection of data featuring NPs-induced alterations of biological barriers. Accordingly, we present an original Topological Data Analysis (TDA) of the nanomechanical properties of Escherichia coli cell surface, evaluated by multiparametric Atomic Force Microscopy (AFM) after exposure of the cells to increasing concentrations of titanium dioxide nanoparticles (TiONPs).
View Article and Find Full Text PDFACS Appl Electron Mater
December 2024
Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, Altenberger Straße 69, 4040, Linz, Austria.
Germanium (Ge), the next-in-line group-IV material, bears great potential to add functionality and performance to next-generation nanoelectronics and solid-state quantum transport based on silicon (Si) technology. Here, we investigate the direct epitaxial growth of two-dimensional high-quality crystalline Ge layers on Si deposited at ultralow growth temperatures ( = 100-350 °C) and pristine growth pressures (≲10 mbar). First, we show that a decreasing does not degrade the crystal quality of homoepitaxial Ge/Ge(001) by comparing the point defect density using positron annihilation lifetime spectroscopy.
View Article and Find Full Text PDFACS Appl Energy Mater
December 2024
Department of Mathematics, Physics and Electrical Engineering, Northumbria University, Newcastle-upon-Tyne NE1 8QH, United Kingdom.
The chalcogenide perovskite BaZrS has strong visible light absorption and high chemical stability, is nontoxic, and is made from earth-abundant elements. As such, it is a promising candidate material for application in optoelectronic technologies. However, the synthesis of BaZrS thin-films for characterization and device integration remains a challenge.
View Article and Find Full Text PDFBMC Pulm Med
December 2024
Department of Medicine, Georgia Prevention Institute, Medical College of Georgia, Augusta University, 1120 15 Street, Augusta, GA, 30912, USA.
Background: Small airways disease (SAD) is a key risk in developing obstructive lung diseases (OLD). Handgrip strength (HGS) is found to be associated with pulmonary function in populations with lung conditions. Hispanics remain the main workforce in farming industry, but their prevalence of lung conditions remain understudied.
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