Results 151 to 160 of about 5,473 (299)

Design, Synthesis, and Photophysical Studies of Functionalized Polyaromatic Isonitriles as Visible Light Photoredox Catalysts

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A new series of structurally rich polyaromatic isonitriles is presented as photoredox catalysts. Their photophysical properties are investigated by UV–Vis absorption and fluorescence measurements, combined with experimental and theoretical studies to evaluate both ground‐ and excited‐state redox properties.
Cristina Martini   +9 more
wiley   +1 more source

Experiments and Models Bearing on the Role of Chromite as a Collector of Platinum Group Minerals by Local Reduction

open access: yes, 2006
Chromite is widely recognized to act as a collector for platinum group elements (PGE), which tend to be observed as discrete grains of plat-inum group minerals included within magmatic chromite grains.
James M. Brenan   +3 more
core  

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

open access: yesElectron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker   +3 more
wiley   +1 more source

Acceleration of Singlet Oxygen Evolution by Sonopiezoelectric Charge Transfer Over SrTiO3‐TiO2 Heterojunction for Selective Oxidation

open access: yesExploration, EarlyView.
A sonopiezo‐triggered singlet oxygen evolution system by S‐scheme SrTiO3‐TiO2 heterojunction was rationally designed to selectively remove electron‐rich pollutants from water. ABSTRACT Sonopiezo‐mediated heterogeneous catalysis is a promising technology for efficient removal of organic pollutants from wastewater. Nevertheless, it is challenging in real
Weiwei Wang   +7 more
wiley   +1 more source

Recent Progress on Enzyme Immobilization: Materials, Strategies, and Applications

open access: yesFood Bioengineering, EarlyView.
Enzyme immobilization technology has undergone substantial evolution driven by advances in materials science. This review systematically examines the recent advances in enzyme immobilization since 2024, with a focused analysis of five major categories of enzyme carriers including covalent organic framework, metal‐organic frameworks, polymers, carbon ...
Shuran Wang   +7 more
wiley   +1 more source

Efficient Separation and Purification of Oligosaccharides: A Systematic Review on Principles and Applications of Membrane Separation Technology

open access: yesFood Bioengineering, EarlyView.
Membrane separation provides a green and scalable route for oligosaccharide purification. This review summarizes the complementary roles of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis, with emphasis on membrane selection, optimization of operating conditions, fouling control, and integrated cascade design for improving purity,
Xinyu Yuan   +4 more
wiley   +1 more source

Potential vulnerability of US green hydrogen in a world of interdependent networks. [PDF]

open access: yesiScience
Pourshahabi S   +3 more
europepmc   +1 more source

An investigation into the role of DTP as a co-collector in the flotation of a South African PGM ore

open access: yes, 2011
The primary aim of this study was to investigate, using a combination of batch flotation and ToF-SIMS experimental techniques, whether a collector-collector synergistic interaction between SIBX and diethyl DTP will result in significantly enhanced copper,
Bezuidenhout, Jacques
core  

Synthesis of platinum-group minerals under hydrothermal conditions

open access: yesEuropean Journal of Mineralogy, 1996
Tatiana Evstigneeva, Mahmud Tarkian
openaire   +1 more source

“Nature's Polymer Reimagined: Conventional and Green Routes to Pectin, Its Bioactive Promise and Industrial Applications”

open access: yesFood Chemistry International, EarlyView.
Pectin, a versatile natural polymer, is extracted through conventional and emerging green extraction methods, offering multifunctional bioactive properties useful in food, pharmaceutical, and environmental applications. ABSTRACT Pectin, a molecular tapestry woven from diverse polysaccharides, holds a pivotal role across food, pharmaceutical, and ...
Afra Anika Rafique   +3 more
wiley   +1 more source

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