Results 11 to 20 of about 53,762 (264)

A fundamental viewpoint on the hydrogen spillover phenomenon of electrocatalytic hydrogen evolution

open access: yesNature Communications, 2021
Despite the significance of hydrogen spillover on metal-supported electrocatalysts for hydrogen evolution, fundamental understandings on such a process are insufficient.
Jiayuan Li   +7 more
doaj   +1 more source

Poly(N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art

open access: yesGels, 2022
A prominent research topic in contemporary advanced functional materials science is the production of smart materials based on polymers that may independently adjust their physical and/or chemical characteristics when subjected to external stimuli. Smart
Mohammad Javed Ansari   +10 more
doaj   +1 more source

In-situ reconstruction of CoBOx enables formation of Co for synthesis of benzylamine through reductive amination

open access: yesFrontiers in Chemistry, 2023
Cobalt (Co) as a substitute of noble-metal catalysts shows high catalytic capability for production of the widely used primary amines through the reductive amination.
Mingkai Zhang   +3 more
doaj   +1 more source

Polyoxovanadate-Based Cyclomatrix Polyphosphazene Microspheres as Efficient Heterogeneous Catalysts for the Selective Oxidation and Desulfurization of Sulfides

open access: yesMolecules, 2022
The [V6O13]2− cluster is successfully immobilized to the polymeric framework of cyclomatrix polyphosphazene via the facile precipitation polymerization between the phenol group symmetrically modified [V6O13]2− and hexachlorocyclotriphosphazene.
Yinghui Hu   +8 more
doaj   +1 more source

Smart Polymer Surfaces

open access: yesMacromolecules, 2003
A methodology is demonstrated for creating responsive polymer surfaces that can alter their wetting characteristics when exposed to a humid environment. For this, we take advantage of the surface partitioning of block copolymers at the polymer/air interface and utilize a hydrophilic group at the end of the surface-active block.
Anastasiadis, S.H.   +4 more
openaire   +2 more sources

Bioinspired porous three-coordinated single-atom Fe nanozyme with oxidase-like activity for tumor visual identification via glutathione

open access: yesNature Communications, 2023
Inspired by structures of natural metalloenzymes, a biomimetic synthetic strategy is developed for scalable synthesis of porous Fe-N3 single atom nanozymes (pFeSAN) using hemoglobin as Fe-source and template.
Da Chen   +10 more
doaj   +1 more source

Towards a new class of stimuli-responsive polymer-based materials – Recent advances and challenges

open access: yesApplied Surface Science Advances, 2021
The rapidly-growing field of polymer stimuli-responsive materials (smart materials) resulted in many advances in designing and developing multi-functional systems, novel architectures, and new synthetic routes for many different applications.
Anna Bratek-Skicki
doaj   +1 more source

Stimuli Responsive Polymeric Systems for Cancer Therapy

open access: yesPharmaceutics, 2018
Nanoscale polymers systems have dominated the revolution of drug delivery advancement. Their potential in the fight against cancer is unrivalled with other technologies.
Ali Alsuraifi   +3 more
doaj   +1 more source

Efficient electrocatalytic acetylene semihydrogenation by electron–rich metal sites in N–heterocyclic carbene metal complexes

open access: yesNature Communications, 2021
This study explores N–heterocyclic carbene copper complexes toward selective electrocatalytic reduction of acetylene to ethylene. The electron–rich copper sites were found to facilitate acetylene adsorption and ethylene desorption and achieved high ...
Lei Zhang   +11 more
doaj   +1 more source

Parametric study for epoxy loaded PMMA microcapsules using Taguchi and ANOVA methods

open access: yeseXPRESS Polymer Letters, 2017
In this study, we systematically investigated the effect of various process parameters, such as surfactant concentration, core-to-shell ratio taken in the initial feed, temperature and agitation speed on the core content of microcapsules.
S. Sharma, V. Choudhary
doaj   +1 more source

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