Results 51 to 60 of about 49,383 (312)

Physicochemical Reinforcement Unlocks Sterilization‐Stable Anisotropic Hydrogels for Cell‐Compatible Mock Arteries

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT In vitro arterial models offer ethical and robust alternatives for vascular research but require cytocompatible materials that replicate physiological mechanics. Poly(vinyl alcohol) (PVA) hydrogels produced by directional freezing and salting‐out (PVA DFSO) are anisotropic yet lack stability for cell culture. Herein, methacrylated PVA (PVA‐MA)
Javiera Sanhueza Ortega   +4 more
wiley   +1 more source

Biomass Photochemistry Xiv: Photosensitized Pre-treatment Of Cellulose And Its Role On Cellulase Efficiency

open access: yes, 2015
α-Cellulose, methylcellulose and filter paper (Whatman No. 1) were irradiated with UV light at λ > 254 nm and λ > 300 nm in the presence of sodium nitrite as sensitizer.
Gomez E., Haun M., Duran N.
core   +1 more source

Integrated Visible Light and Oxidant Protection Through Multifunctional Sunscreens

open access: yesAdvanced Healthcare Materials, EarlyView.
High‐energy visible radiation (HEVR), although less energetic than UV light, penetrates deeper into the skin and contributes to photoaging, pigmentation disorders, and oxidative stress. The development of new HEVR‐targeted filters, therefore, represents not only a scientific challenge but also a pressing public health and cosmetic industry need.
Beatriz Peñín   +3 more
wiley   +1 more source

Direct generation of nitrogen-centered radicals via non-covalent interaction between Cu complexes and BiVO4 photoanodes

open access: yesNature Communications
Semiconductor-based photoelectrochemistry commonly relies on efficient interactions between semiconductor surfaces and adsorbates for promoting charge transfer and efficiently activating inert bonds.
Lei Wu   +5 more
doaj   +1 more source

Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System

open access: yesAdvanced Energy & Sustainability Research, 2021
The conversion of solar energy into chemical energy by the use of dye‐sensitized solar cells (DSSCs) and dye‐sensitized photoelectrochemical cells (DSPECs) has been considered a convenient method in recent years.
Anish Babu Athanas, Swarnalatha Kalaiyar
doaj   +1 more source

Photochemistry of aryl halides: Photodissociation dynamics

open access: yes, 2007
In recent years, the photodissociation dynamics of aryl halides has been a subject of intensive studies, which is closely related to the atmospheric chemistry.
韩克利, Han, Ke-Li, He, Guo-Zhong
core   +1 more source

Microgel‐Based 3D Bioprinting: A Convergent Strategy Integrating Material Design, Jamming Dynamics, and Biological Function

open access: yesAdvanced Healthcare Materials, EarlyView.
Microgel‐based 3D printed constructs represent a compelling and versatile innovation for engineering architecturally complex, dynamically remodelable, and biocompatible structures with high structural fidelity and bioactivity. By integrating material design, biofabrication, and biological function, these systems enable the development of adaptive ...
Elena Ghighină   +2 more
wiley   +1 more source

The photochemical properties of arene metal carbonyl complexes of group 6 and 7 elements [PDF]

open access: yes, 2003
The aim of this work was to determine the photochemical properties of a number of compounds of the general type (r|x-arene)M(CO)3 (M=Cr, Mn, X = 5,6). A range of techniques were used including ultraviolet/visible flash photolysis, time resolved infrared ...
Brennan, Peter
core  

A green chemical approach for nitration of aromatic compounds

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2009
Photochemical aromatic nitration of phenol and salicylic acid has been carried out in the presence of UV radiations and formation of products has been observed spectrophotometrically.
Arpita Dugar   +3 more
doaj   +1 more source

Surface photochemistry probed by two-photon photoemission spectroscopy [PDF]

open access: yes, 2012
Two-photon photoemission (2PPE) has been widely used in the study of electronic structure and dynamics of unoccupied electronic states on different types of surfaces and interfaces.
Yang, X.   +11 more
core   +1 more source

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