Results 11 to 20 of about 652,135 (265)

Dynamic co-assembly behaviors of polyoxometalates and giant surfactants in dual solvents

open access: yesGiant, 2023
Inorganic-organic hybridization is a widely used method to develop new functional materials involving polyoxometalates (POMs), affording them with unique synergistic physical and chemical properties.
Ze Wang   +7 more
doaj   +1 more source

Direct electronetting of high-performance membranes based on self-assembled 2D nanoarchitectured networks

open access: yesNature Communications, 2019
Nanofibrous networks are applied in environmental protection and electrical or bioengineering and experience a great demand, but the design of these functional materials is challenging.
Shichao Zhang   +5 more
doaj   +1 more source

Chemical Modification of Tylosin.

open access: yesThe Journal of Antibiotics, 1995
20-Homo tylosin, 20-nor tylosin, 20-deoxy-19,20-didehydro tylosin (6-vinyl tylosin) and 2",3"-didehydro-3"-deoxy tylosin were prepared by multi-step procedures. 20-Homo tylosin was about twice less active than tylosin while the other compounds exhibited very weak antibacterial activity.
S, Bobillot   +6 more
openaire   +3 more sources

One-step floating conversion of biomass into highly graphitized and continuous carbon nanotube yarns

open access: yesGreen Energy & Environment, 2023
The rapid growth of the demand for carbon nanotubes (CNTs) has greatly promoted their large-scale synthesis and development. However, the continuous production of CNT fibers by floating catalyst chemical vapor deposition (FCCVD) requires a large amount ...
Gongxun Zhai   +7 more
doaj   +1 more source

Advances in chitooligosaccharides chemical modifications [PDF]

open access: yesBiopolymers, 2021
AbstractChitooligosaccharides (COS) differ from chitosan by their molar mass: those of COS are defined to be lower than 20 kg mol−1. Their functionalization is widely described in the literature and leads to the introduction of new properties that broaden their application fields.
Chapelle, Camille   +4 more
openaire   +2 more sources

Optimization of the Laminate Structure of a Composite Cylinder Based on the Combination of Response Surface Methodology (RSM) and Finite Element Analysis (FEA)

open access: yesMolecules, 2022
This study optimized the laminate structure of a composite cylinder under the constraint of minimum layup thickness. Based on the progressive damage theory, a finite element model of the cylinder was established, and the NOL ring tensile test was used to
Zhiqi Li   +7 more
doaj   +1 more source

Chemical modification of validamycin A.

open access: yesAgricultural and Biological Chemistry, 1980
The chemical modification of validamycin A was examined. One of the synthetic validamycin analogs, N[(1S)-(1,4,6/5)-4,5,6-trihydroxy-3-hydroxymethyl-2-cyclohexenyl] [O-β-2-amino-2- deoxy-d-glucopyranosyl-(1-> 3)-(1S)-(1,2,4/3,5) -2,3,4- trihydroxy-5-hydroxymethyl-cyclohexy] amine monohydrochloride had almost the same activity against the sheath blight ...
HASEGAWA, Akira   +3 more
openaire   +2 more sources

Construction of Ultrathin Layered MXene-TiN Heterostructure Enabling Favorable Catalytic Ability for High-Areal-Capacity Lithium–Sulfur Batteries

open access: yesNano-Micro Letters, 2022
Catalysis has been regarded as an effective strategy to mitigate sluggish reaction kinetics and serious shuttle effect of Li–S batteries. Herein, a spherical structure consists of ultrathin layered Ti3C2T x -TiN heterostructures (MX-TiN) through in-situ ...
Hao Wang   +6 more
doaj   +1 more source

On-demand assembly of polymeric nanoparticles for longer-blood-circulation and disassembly in tumor for boosting sonodynamic therapy

open access: yesBioactive Materials, 2022
Sonodynamic therapy (SDT) is one of the promising strategies for tumor therapy, but its application is usually hindered by fast clearance in blood-circulation, abnormal tumor microenvironment, and inefficient generation of reactive oxygen species.
Mei Wen   +7 more
doaj   +1 more source

Chemical modification of biocatalysts

open access: yesCurrent Opinion in Biotechnology, 2003
Although several powerful methods exist for the redesign of enzyme structure and function these are typically limited to the 20 most abundant proteinogenic amino acids. The use of chemical modification overcomes this limitation to allow virtually unlimited alteration of amino acid sidechain structures.
openaire   +2 more sources

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