Results 81 to 90 of about 18,538,505 (298)

Characterization and toxicity evaluation of degradation products of febantel

open access: yesFuture Journal of Pharmaceutical Sciences, 2020
Background The aim of the present work was to determine potential toxicity of degradation products of febantel generated under different stress conditions mentioned in guideline Q1A (R2) laid down by International Council for Harmonization (ICH).
Anand A. Mahajan   +4 more
doaj   +1 more source

Application of a high-pressure electro-osmotic pump using nanometer silica in capillary liquid chromatography

open access: yes, 2005
A novel designed electro-osmotic pump (EOP) with simple structure was assembled using three 20 cm x 530 mum i.d. fused-silica capillaries packed with 20 +/- 5 nm silica grains for capillary liquid chromatography. It was found that the pump could generate
Liu, KH   +5 more
core   +1 more source

A Cu2S/NiOOH Heterojunction Enables Highly Selective Ammonia‐to‐Nitrite Electrooxidation at Industrially Relevant Current Densities

open access: yesAdvanced Materials, EarlyView.
Cu2S/NiOOH heterojunction enables efficient ammonia electrooxidation coupled with hydrogen evolution. Interfacial electronic modulation of Ni sites promotes selective NH3‐to‐NO2− electrooxidation at high current density. In a membrane electrode assembly, Cu2S/NiOOH maintains over 90% Faradaic efficiency of nitrite at 800 mA cm−2, highlighting its ...
Ke Wang   +13 more
wiley   +1 more source

Programmable Carrier‐Free All‐Enzyme Beads for Modular Continuous‐Flow Biocatalysis

open access: yesAdvanced Materials, EarlyView.
Genetically encoded enzyme building blocks self‐assemble into monodisperse, carrier‐free protein beads via a droplet‐based formulation strategy. These programmable catalytic particles enable modular continuous‐flow biocatalysis, from single‐enzyme reactions to multi‐enzyme cascades and bead–bead coupled reactor systems.
Jennifer Kühne   +12 more
wiley   +1 more source

Vitamin C‐Induced Photo‐Redox Threshold Enables High‐Fidelity Volumetric Printing of Collagen

open access: yesAdvanced Materials, EarlyView.
Tomographic volumetric printing (TVP) of native proteins is limited by uncontrolled background crosslinking. Here, vitamin C is introduced as a biocompatible redox regulator to establish a tunable nonlinear polymerization threshold response for TVP.
Bin Wang   +5 more
wiley   +1 more source

Resolution of desmosterol, cholesterol, and other sterol intermediates by reverse-phase high-pressure liquid chromatography.

open access: yesJournal of Lipid Research, 1978
A highly efficient technique has been developed for the resolution of several sterols that are intermediates in the biosynthesis of cholesterol and that differ only by one carbon-carbon double bond or by one methyl group. The technique described utilizes
E Hansbury, T J Scallen
doaj   +1 more source

High-temperature open tubular liquid chromatography coupled to atmospheric pressure chemical ionisation mass spectrometry

open access: yes, 1996
A micro heated nebuliser interface was constructed and used for coupling of open tubular liquid chromatography at 150 degrees C to atmospheric pressure chemical ionisation mass spectrometry. For the chromatography, 50 mu m I.D.
Nyholm, LM,, Sjoberg, PJR, Markides, KE
core  

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

open access: yesAdvanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen   +7 more
wiley   +1 more source

Protein liquid chromatography /

open access: yes, 2000
Protein Liquid Chromatography is a handbook-style guide to liquid chromatography as a tool for isolating and purifying proteins, consisting of 25 individual chapters divided into three parts: Part A covers commonly-used, classic modes of chromatography ...
Kastner, Michael
core  

Scalable Fabrication of Chemically Stabilized Gelatin Hydrogel Fibers by Thermal Drawing

open access: yesAdvanced Materials Interfaces, EarlyView.
Scalable processing of hydrogel fibers remains a major challenge. By coupling thermal drawing with Maillard chemistry, a transient viscous‐flow window is created that enables continuous fabrication of microstructured gelatin fibers tens of meters long, while continued in situ crosslinking during drawing stabilizes the fibers for physiological ...
Chaoqun Dong   +5 more
wiley   +1 more source

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