Results 81 to 90 of about 35,691 (265)

Myrcene‐Based Tailored Co‐Polymers as Active Pharmaceutical Excipients: Bio‐Based Solutions for Mucoadhesive Excipients

open access: yesAdvanced Functional Materials, EarlyView.
Mucoadhesive amphiphilic block and statistical copolymers were synthesized via Reversible Addition–Fragmentation Chain Transfer polymerization from bio‐sourced myrcene and polyethylene glycol methacrylate. The resulting polymers exhibit narrow molar‐mass distributions, high regioselectivity, well‐defined microstructures, and tend to self‐assemble into ...
David Gintsburg   +9 more
wiley   +1 more source

Removal of humic substances by adsorption/ion exchange

open access: yesWater Science and Technology, 1999
This paper gives an overview over the ability of four different sorbent media, activated carbon, anion exchange resins, carbonaceous resins and metal oxides, for the removal of humic sustances. Both sorbent characteristics and solution parameters that affect the ultimate capacities are discussed, and approaches developed in order to describe sorption ...
openaire   +1 more source

Arsenic adsorption by Bacterial Extracellular Polymeric Substances

open access: yesBangladesh Journal of Microbiology, 2012
The main objective of this work was to isolate arsenic resistant bacteria from contaminated soil, followed by screening for their ability to adsorb arsenic. Six bacterial isolates (S1 to S6) were obtained from arsenic contaminated soil samples and among these, five (S1, S2, S3, S5 and S6) were characterized as bacillus and the rest one (S4) was cocci ...
Anwarul A Akhand   +4 more
openaire   +2 more sources

Engineering MnNiPx Cathode via Dual Role of Mn: Simultaneous Enhancement of Activity and Intermittent Operation Durability

open access: yesAdvanced Functional Materials, EarlyView.
Engineering MnNiPx cathodes through the dual role of Mn simultaneously improves hydrogen evolution reaction activity and intermittent‐operation durability. Mn preferentially oxidizes to protect Ni–P sites from irreversible oxidation, while metallic Mn incorporation enhances the HER kinetics of Ni–P active layer.
Ik‐Sun Kim   +16 more
wiley   +1 more source

Computational evaluation of aluminum and zinc doped C20 fullerenes as advanced sensors for the detection of the narcotic dimethyltryptamine

open access: yesScientific Reports
N, N-Dimethyltryptamine (N, N-DMT) is a potent psychedelic substance whose detection is crucial in medical and forensic contexts. In this study, we computationally evaluate the potential of aluminum- and zinc-doped C20 fullerenes (AlC19 and ZnC19) as ...
Saad M. Alshahrani
doaj   +1 more source

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan   +10 more
wiley   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

Utilizing banana peel-derived graphene oxide nanosheets for adsorptive removal of pharmaceuticals from wastewater

open access: yesCase Studies in Chemical and Environmental Engineering
The research investigated the adsorption capacity of graphene oxide nanosheets towards non-steroidal anti-inflammatory drugs (NSAIDs) across diverse experimental conditions.
Timoth Mkilima   +7 more
doaj   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

COMPARATIVE STUDY OF ADSORPTION ACTIVITY OF ACTIVATED CHARCOAL AND SILICA GEL IN CASE OF WATER/TOLUENE MIXTURES

open access: yesFood and Environment Safety, 2017
Efficiency of the liquid phase adsorption of toluene has been investigated for two common and widely used adsorbents: activated charcoal and silica gel. The adsorption values were determined using the UV-photometry method, where the solution’s absorbance
Igor WINKLER, Kateryna BODNARYUK
doaj  

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