Results 71 to 80 of about 273,868 (276)
Self‐Sustaining Piezozyme Platform for Antifouling via Mechanically Triggered Enzymatic Cascade
Advanced Science, EarlyView.Wave‐powered CeO2/g‐C3N4 piezozyme coating converts ocean motion into an enzymatic H2O2‐to‐ROS cascade, realizing 180‐day eco‐friendly marine antifouling. ABSTRACT Harnessing ubiquitous mechanical energy for catalytic activation offers an emerging pathway toward self‐sustaining environmental protection systems.
Jingyu Wang +3 more
wiley +1 more source
The Use of Spectrophotometry UV-Vis for the Study of Porphyrins
, 2012 The porphyrins (Fig. 1) are an important class of naturally occurring macrocyclic compounds found in biological compounds that play a very important role in the metabolism of living organisms. They have a universal biological distribution and were involved in the oldest metabolic phenomena on earth.
openaire +4 more sources
Advanced Science, EarlyView.This work proposes a facile co‐assembly strategy to achieve highly uniform and dense immobilization of diverse noble metal nanoparticles onto metastable multifunctional (e.g., magnetic or fluorescent) polymer microspheres, enabling fabrication of complex hierarchical superstructures.
Jie Zhao +12 more
wiley +1 more source
Bulletin of the Chemical Society of Ethiopia, 2018 Caffeine contents of 45 green coffee bean samples collected from coffee plants grown at different altitudes in Southwest Ethiopia was determined by UV-Vis spectrophotometry. The caffeine contents were found in the range of 0.62 - 1.2% (w/w).
M. Hagos +5 more
doaj +1 more source
Advanced Science, EarlyView.A dual‐targeting strategy to rejuvenate aged tendons. A reactive oxygen species (ROS)‐responsive hydrogel co‐delivers a selenium nanozyme (scavenges ROS) and a STING inhibitor to tendon stem cells. This combined action restores mitochondria–nucleus communication, alleviates cellular senescence, and rejuvenates tendon regeneration, offering a novel ...
Zhuo Zhang +11 more
wiley +1 more source
Ni Single‐Atom Modulation of Ti‐O Covalency Boosts Ammonia Oxidation Electrocatalysis
Advanced Science, EarlyView.A Ni single‐atom‐induced enhancement of Ti‐O covalency in Ni SAC@TiO2 generates abundant active sites and promotes selective NHx‐NHy mediated N2 evolution while suppressing poisonous NOx formation, achieving nearly doubled AOR activity with excellent durability.
Subhash Chandra Shit +7 more
wiley +1 more source
JIIS: Jurnal Ilmiah Ibnu Sina, 2019 Eleutherine palmifolia (L) Merr. is one of the plant that has function as medicine. One of the compound which much contained in ethanol extract of dayak union is flavonoid, so that could separate with purification.
Siti Jubaidah +3 more
doaj
Determination of Acid Dissociation Constants of Some 2-(3H) –Benzoxazolone Derivatives by UV–Vis Spectrophotometry [PDF]
Iranian Journal of Chemistry & Chemical EngineeringThe acid dissociation constant values of some 2-(3H)-benzoxazolone derivatives were determined in buffered solutions by using the UV-Vis spectrophotometric method.
Semra Altunterim Erkan +2 more
doaj +1 more source
Advanced Science, EarlyView.Thanks to the appropriate structure preorganization of an N3O2‐pentadentate planar ligand, 2,6‐bis(2‐hydroxyphenylmethylaminomethyl)pyridine (H2saldamp) exhibits the strongest coordination affinity to UO22+ (log βU = 33.60) compared to ligands developed for uranium harvesting from seawater to date, as well as good separability of UO22+ from other metal
Ryuto Nabata +2 more
wiley +1 more source
Advanced Science, EarlyView.Repeated disuse imprints a molecular memory in skeletal muscle, conferring transcriptional resilience in young adults but exaggerated susceptibility in aged muscle, driven by epigenetic regulation of aerobic metabolism, mitochondrial and NAD+ pathways.
Daniel C. Turner +14 more
wiley +1 more source