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Bioaerosol Characterization with Vibrational Spectroscopy: Overcoming Fluorescence with Photothermal Infrared (PTIR) Spectroscopy.
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Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.
Aerosols containing biological material (i.e., bioaerosols) impact public health by transporting toxins, allergens, and diseases and impact the climate by nucleating ice crystals and cloud droplets.
View Article and Find Full Text PDFSARS-CoV-2 FP1 Destabilizes Lipid Membranes and Facilitates Pore Formation.
Int J Mol Sci
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Research Institute for Systems Biology and Medicine (RISBM), Nauchnyi proezd 18, 117246 Moscow, Russia.
SARS-CoV-2 viral entry requires membrane fusion, which is facilitated by the fusion peptides within its spike protein. These predominantly hydrophobic peptides insert into target membranes; however, their precise mechanistic role in membrane fusion remains incompletely understood. Here, we investigate how FP1 (SFIEDLLFNKVTLADAGFIK), the N-terminal fusion peptide, modulates membrane stability and barrier function across various model membrane systems.
View Article and Find Full Text PDFSaponins Effect on Human Insulin Amyloid Aggregation.
Biomolecules
December 2024
Department of Life and Environmental Sciences, Marche Polytechnic University, I-60131 Ancona, Italy.
The misfolding and amyloid aggregation of proteins have been attracting scientific interest for a few decades, due to their link with several diseases, particularly neurodegenerative diseases. Proteins can assemble and result in insoluble aggregates that, together with intermediate oligomeric species, modify the extracellular environment. Many efforts have been and are devoted to the search for cosolvents and cosolutes able to interfere with amyloid aggregation.
View Article and Find Full Text PDFBiocompatible EDOT-Pyrrole Conjugated Conductive Polymer Coating for Augmenting Cell Attachment, Activity, and Differentiation.
ACS Appl Bio Mater
January 2025
Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States.
Developing scaffolds supporting functional cell attachment and tissue growth is critical in basic cell research, tissue engineering, and regenerative medicine approaches. Though poly(ethylene glycol) (PEG) and its derivatives are attractive for hydrogels and scaffold fabrication, they often require bioactive modifications due to their bioinert nature. In this work, biomimetic synthesized conductive polypyrrole-poly(3,4-ethylenedioxythiophene) copolymer doped with poly(styrenesulfonate) (PPy-PEDOT:PSS) was used as a biocompatible coating for poly(ethylene glycol) diacrylate (PEGDA) hydrogel to support neuronal and muscle cells' attachment, activity, and differentiation.
View Article and Find Full Text PDFOne-step antifouling coating of polystyrene using engineered polypeptides.
J Colloid Interface Sci
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Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4 6708 WE Wageningen, The Netherlands. Electronic address:
Unwanted nonspecific adsorption caused by biomolecules influences the lifetime of biomedical devices and the sensing performance of biosensors. Previously, we have designed B-M-E triblock proteins that rapidly assemble on inorganic surfaces (gold and silica) and render those surfaces antifouling. The B-M-E triblock proteins have a surface-binding domain B, a multimerization domain M and an antifouling domain E.
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