Results 81 to 90 of about 127,598 (336)
Cell Reports Physical Science, 2021 Summary: The reduction of chemically inert nitrogen to ammonia is a critical step in the global nitrogen cycle. Microbial nitrogen fixation is a promising way to realize nitrogen reduction and ammonia production at mild conditions.
Fangyuan Dong +6 more
doaj
Effects of Growth on Dinitrogen on the Transcriptome and Predicted Proteome of Nostoc PCC 7120 [PDF]
arXiv, 2006 Upon growth on dinitrogen, the filamentous cyanobacterium Nostoc PCC 7120 initiates metabolic and morphological changes. We analyzed the expression of 1249 genes from major metabolic categories under nitrogen fixing and non-nitrogen fixing growth.
arxiv
A Comparison of the Mechanical Properties of ECM Components and Synthetic Self‐Assembling Peptides
Advanced Healthcare Materials, EarlyView.Self‐assembling peptide hydrogels are increasingly utilized in biomedical applications. The authors review the key mechanical properties of these structures across multiple size scales and compare them to that of native extracellular matrix components, which are found to display a much wider range of structural attributes.
Alex Hartley +2 more
wiley +1 more source
Density Functional Theory Evaluation of Cation-doped Bismuth Molybdenum Oxide Photocatalysts for Nitrogen Fixation [PDF]
arXiv, 2018 This study investigates the photocatalytic nitrogen fixation on a cation-doped surface (Bi$_{x}$M$_{y}$)$_2$MoO$_6$ where (M = Fe, La, Yb) in both the orthorhombic and monoclinic configurations using a density functional theory (DFT) approach with experimentally validated model inputs.
arxiv
Low-energy spectrum of iron-sulfur clusters directly from many-particle quantum mechanics [PDF]
, 2014 FeS clusters are a universal biological motif. They carry out electron transfer, redox chemistry, and even oxygen sensing, in diverse processes including nitrogen fixation, respiration, and photosynthesis. The low-lying electronic states are key to their remarkable reactivity, but cannot be directly observed.
arxiv +1 more source
Advanced Healthcare Materials, EarlyView.Exosomes can reduce tissue damage in temporomandibular joint osteoarthritis (TMJOA), but rapid clearance limits their efficacy. This study encapsulates exosomes in hyaluronic acid hydrogels for controlled release. In a rat model, hydrogel‐encapsulated exosomes outperform free exosomes in preserving bone integrity and reducing tissue destruction ...
Victor Diez‐Guardia +7 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.This study investigates nanoscale temperatures generated by photoexcited gold nanostars and their correlation with microscale thermal damage at the cellular level. Using X‐ray absorption spectroscopy and confocal microscopy in 3D cancer spheroids, it assesses localized heating effects and examines tumor cell structure and integrity, offering insights ...
Rosalía López‐Méndez +11 more
wiley +1 more source
Ab initio Screening of a Sulfur Desorbed MoS$_2$ Photocatalyst for Nitrogen Fixation [PDF]
arXiv, 2017 The following study investigates the thermodynamic reaction barriers during nitrogen fixation for an inorganic sulfur desorbed photocatalyst Molybdenum disulfide surface. The design space is investigated using an density functional theory (DFT) method within a space bound by MMoS$_2$ M=Mo,Fe,Co.
arxiv
Advanced Healthcare Materials, EarlyView.Segmented PCL‐bisurea (BU) polymers and BU‐peptide conjugate additives assemble into fibrous superstructures at the nanoscale through a mix‐and‐matching strategy. Different bioactivities are incorporated through variation of peptide sequences. The resulting materials are screened for their effect on stem cell adhesion and pluripotency.
Johnick F. van Sprang +6 more
wiley +1 more source
Recent Applications of Mesoporous Silica Nanoparticles in Gene Therapy
Advanced Healthcare Materials, EarlyView.The review summarizes the synthesis of mesoporous silica nanoparticles (MSNs) with modifiable surface properties, functionalization strategies, mechanism of therapeutic payload release, and current applications in gene therapy, focusing on their capabilities in the targeted delivery of therapeutic nucleic acids, CRISPR‐Cas systems, and other genetic ...
Tamanna Binte Huq +4 more
wiley +1 more source