Results 41 to 50 of about 1,335,294 (246)

Sterol synthesis: a simple method for the isolation of zymosterol (5 alpha-cholesta-8, 24-dien-3 beta-ol) from yeast and spectral properties of zymosterol

open access: yesJournal of Lipid Research, 1981
A relatively simple method is described for the isolation of zymosterol (5 alpha-cholesta-8, 24-dien-3 beta-ol) of high purity from baker's yeast. Also presented are detailed spectral properties, including 13C NMR spectral analyses, of zymosterol and its
U F Taylor   +5 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Infrared Spectrometry as a High-Throughput Phenotyping Technology to Predict Complex Traits in Livestock Systems

open access: yesFrontiers in Genetics, 2020
High-throughput phenotyping technologies are growing in importance in livestock systems due to their ability to generate real-time, non-invasive, and accurate animal-level information.
Tiago Bresolin, João R. R. Dórea
doaj   +1 more source

Evaluation of White Tea Grades Based on Near Infrared Spectroscopy and Gas Chromatography-Ion Mobility Spectroscopy

open access: yesShipin gongye ke-ji, 2023
Tea grade evaluation is a systematic work with complex and subjective. Grade information from its relevant quality data extracted enables to establish rapid identification method, later of which has guiding meaning to tea production. To establish a rapid
Yan HUANG   +6 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Isotope geochemistry in volcanic gases, new perspectives from Infrared Spectrometry.

open access: yes, 2007
Volcanic gases, being the most mobile phase of magmas, are worldwide monitored for geochemical surveillance. Together with chemical analyses, stable isotopic studies may be useful in understanding the origin of the fluids emerging in a volcanic system ...
D'Alessandro, W., Liotta, M.
core   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha   +11 more
wiley   +1 more source

Mixing laser spectroscopy and mass spectrometry-infrared spectra of metal cation-hydrogen complexes

open access: yes, 2010
We describe recent experiments in which mass spectrometry and laser spectroscopy are combined to characterize Li(+)-H(2), Na(+)-H(2), B(+)-H(2) and Al(+)-H(2) complexes in the gas-phase.
Berwyck L.J. Poad   +5 more
core   +1 more source

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

open access: yesAdvanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida   +4 more
wiley   +1 more source

Infrared spectrometry. A research technique in cement chemistry

open access: yesMateriales de Construccion, 1969
Not ...
T. Vázquez Moreno
doaj   +1 more source

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