Results 61 to 70 of about 203,215 (351)

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Differentiation between 3,4- and 4,15-Epoxyeudesmanolides by Electrospray Ionization Tandem Mass Spectrometry

open access: yesJournal of Analytical Methods in Chemistry, 2017
We investigated the fragmentation of the eudesmanolide-type sesquiterpene lactones 1α-(4-hydroxymethacryloyloxy)-3α,4α-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (1) and 1α-(2,3-epoxyangeloyloxy)-4α,15-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (2) by ...
Herbert Júnior Dias   +4 more
doaj   +1 more source

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

open access: yesAdvanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler   +10 more
wiley   +1 more source

Selective and Precise Editing of Digital Polymers Through Parallel or Series Toehold‐Mediated Strand Displacement

open access: yesAdvanced Functional Materials, EarlyView.
A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski   +3 more
wiley   +1 more source

The path of biomolecular mass spectrometry into open research

open access: yesNature Communications, 2019
Originally designed for measuring isotope abundances and elemental masses, mass spectrometry is becoming a mainstay across life sciences. As electrospray ionization of biomolecules turns 30 and the Orbitrap mass analyzer 20, we take this opportunity to ...
doaj   +1 more source

An Organic Chemist’s Guide to Electrospray Mass Spectrometric Structure Elucidation

open access: yesMolecules, 2019
Tandem mass spectrometry is an important tool for structure elucidation of natural and synthetic organic products. Fragmentation of odd electron ions (OE+) generated by electron ionization (EI) was extensively studied in the last few decades, however ...
Arnold Steckel, Gitta Schlosser
doaj   +1 more source

Comparing and Combining Capillary Electrophoresis Electrospray Ionization Mass Spectrometry and Nano–Liquid Chromatography Electrospray Ionization Mass Spectrometry for the Characterization of Post-translationally Modified Histones

open access: yesMolecular & Cellular Proteomics, 2013
We present the first comprehensive capillary electrophoresis electrospray ionization mass spectrometry (CESI-MS) analysis of post-translational modifications derived from H1 and core histones.
B. Sarg   +5 more
semanticscholar   +1 more source

Bioinspired Design of a Wet‐Adhesive Cornea Glue Based on Recombinant Human Protein Networks

open access: yesAdvanced Functional Materials, EarlyView.
Natures protein‐based high performance materials e.g. elastin, silk and muscle proteins have been mimicked by a new protein‐hybrid material based on redesigned human partial sequences only, showing high wet‐adhesiveness and elasticity for biomedical applications.
Anna Resch   +17 more
wiley   +1 more source

Inter-platform assessment of performance of high-throughput desorption electrospray ionization mass spectrometry

open access: yesTalanta Open, 2021
High throughput analysis is increasingly relevant in both industry and academia, with applications reaching from enzymology and drug discovery to organic reaction optimization and diagnostics.
Nicolás M. Morato, R. Graham Cooks
doaj  

Direct Ambient Analysis of Pharmaceutical and Ecstasy Tablets

open access: yesCHIMIA, 2006
Desorption electrospray ionization (DESI) is a new ionization technique recently introduced in analytical chemistry for the ambient analysis of surfaces by mass spectrometry.
Luc Alexis Leuthold   +6 more
doaj   +1 more source

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