Results 81 to 90 of about 143,720 (300)

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

open access: yes, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W.   +7 more
core   +1 more source

Oxygen‐Driven Structural Reorganization by Trace Water Enabling Fast Li‐Ion Transport in a Pliable Solid Electrolyte

open access: yesAdvanced Energy Materials, EarlyView.
Trace water is acting as a constructive mediator in 2LiCl–GaF3, markedly increasing ionic conductivity while reorganizing local coordination. Hydration creates localized Li+ solvation environments and partially dissociates ion pairs, enhancing Li‐ion mobility.
Youngkyung Kim   +10 more
wiley   +1 more source

A Revised Model for Muscarine Biosynthesis Involving Lysine Trimethylation

open access: yesAngewandte Chemie, EarlyView.
The fatal mushroom toxin l‐(+)‐muscarine is one of the most prominent natural products. We elucidated its biosynthetic origin in the sweating mushroom Collybia rivulosa based on incorporation of stable isotope‐labeled compounds and extensive mass spectrometric analyses.
Sebastian Dörner   +4 more
wiley   +2 more sources

Detoxification of Ustiloxin A by Hydroxylation of Endophytic Fungus Petriella setifera Nitaf10

open access: yesMicrobiology Research
Ustiloxins are a kind of cyclopeptide mycotoxins produced by rice false smut pathogen Villosiclava virens, which seriously threatens the safe production of rice and health of humans and animals. Hydroxylation, a biotransformation reaction that regio- and
Peng Li   +4 more
doaj   +1 more source

Collagens - structure, function and biosynthesis. [PDF]

open access: yes, 2003
The extracellular matrix represents a complex alloy of variable members of diverse protein families defining structural integrity and various physiological functions.
Aigner, T, Gelse, K, Poschl, E
core   +1 more source

Degradation Mechanisms of Rutile‐Type TiO2 Photoanodes during Photoelectrochemical Water Splitting

open access: yesAdvanced Energy Materials, EarlyView.
Combining operando dissolution measurements with microscopy and spectroscopy characterizations, we reveal different degradation mechanisms of rutile‐type TiO2 photoanodes during photoelectrochemical water splitting. In acidic electrolytes, degradation is inhibited once TiO2 reaches saturation.
Yiqun Jiang   +12 more
wiley   +1 more source

Site‐Selective B─H Activation via HAT Toward Xanthyl‐closo‐Carboranes as Bench‐Stable Precursors of Organosulfur Boron Clusters

open access: yesAngewandte Chemie, EarlyView.
A light mediated direct regioselective B─H functionalization, via hydrogen atom transfer (HAT), is described. Unexplored xanthyl‐closo‐carboranes as novel bench‐stable and versatile platforms to access sulfur‐containing boron clusters are reported for the first time.
Marco Rusconi   +9 more
wiley   +2 more sources

Effect of Alkyl Substituents on the Hydrogen Catalytic Osmylation of Cis and Trans 2-Cyclohexene-Cyclohexanol [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1995
Catalytic osmylation of cis and trans 2-cyclohexene-cyclohexanol (1a) and (1b) are carried out in the presence of N-methyl morpholine-N-oxide. Under the same conditions, only the cis isomer reacted, leading to triol (3).
Mohammad Raouf Darvich   +1 more
doaj  

Comparison of Cholesterol Lowering Diets: Apple, Casein Cytochrom P450 protein and Cholesterol 7α Hydroxylase Activities in Hamsters [PDF]

open access: yes, 2010
Lithogenic diet, casein and apple fiber diets were fed to hamsters for 3-5 weeks. For control group, animals were fed on normal Purina chow without any supplement.
Rakesh Sharma, Rakesh K. Tandon
core   +2 more sources

Synthetic Surface Design of Transparent Electrodes for Enhanced Molecular Contact in Perovskite Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
A simple solution‐based ITO surface treatment unlocks the full potential of phosphonic‐acid SAMs by balancing surface hydroxylation, conductivity, and homogeneity. Moderately hydroxylated interfaces yield uniform, electronically favourable contacts, enhancing charge extraction, stability, and thermal‐cycling resilience, with broad applicability across ...
Rik Hooijer   +18 more
wiley   +1 more source

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