Results 151 to 160 of about 278,553 (356)

Amino acid analysis [PDF]

open access: yes, 1974
The process and apparatus for qualitative and quantitative analysis of the amino acid content of a biological sample are presented. The sample is deposited on a cation exchange resin and then is washed with suitable solvents.
Graff, J., Winitz, M.
core   +1 more source

Unlocking the Essence of Lignin: High‐Performance Adhesives That Bond via Thiol‐Catechol Connectivities and Debond on Electrochemical Command

open access: yesAdvanced Materials, EarlyView.
A novel lignin‐inspired adhesive is presented, that combines the bonding strength of a structural adhesive with on‐demand electrochemical debonding, enabled by biomimetic thiol‐catechol connectivities. Voltage application of only 9 V facilitates electrochemical oxidation of catechols to quinones leading to guided detachment on command.
Keven Walter   +7 more
wiley   +1 more source

The binding of glycosaminoglycans to peptides : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

open access: yes, 1994
The overall aim this study was to examine the possibility of using immobilised polypeptide chains to fractionate/separate Glycosaminoglycans (GAG's) from mixtures. Initially individual samples of three GAG classes (chondroitin sulphate, dermatan sulphate
Taylor, Grant John
core  

Confining Quantum Dots Within Covalent Organic Framework Cages for Coupled CO2 Photoreduction and Value‐Added Chemical Synthesis

open access: yesAdvanced Materials, EarlyView.
A 3D/0D S‐scheme heterojunction photocatalyst is constructed by spatially confining ZnSe quantum dots within covalent organic framework (COF) porous cages, enabling coupled CO2 photoreduction and value‐added chemical synthesis. COF porous cages serve as nanoreactors, enriching reactant concentrations, and the S‐scheme heterojunction facilitates charge ...
Jingzhao Cheng   +9 more
wiley   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell   +6 more
wiley   +1 more source

Water‐Mediated 1,7‐Palladium Aryl‐to‐Aryl Migration in an Unusual Aryne Trimerization Enables the Synthesis of Multihelicenes with Profoundly Hindered Stereogenic Axes

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
In the presence of a Pd0 catalyst, large π‐extended arynes trimerize in an unusual manner to forge extremely compact and strained chiral benzenoids. This new trimerization reaction involves a 1,7‐Pd isomerization, a rare and poorly understood process that is elucidated.
Albert Artigas   +6 more
wiley   +1 more source

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