Results 121 to 130 of about 7,101 (242)

Deciphering Branched Galactomannan Structures via Multistage Ion Mobility MS and MSn Fragmentation (Multistage IMSn)

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Hemicelluloses are abundant carbohydrate components in plant cell walls. They play a crucial structural role in binding cellulose microfibrils, in addition to other biological functions. Their high structural variability directly influences their biological properties, making it important to establish a structure–function ...
Rania Benazza   +3 more
wiley   +1 more source

Acoustic Detection Module Design of a Quartz-Enhanced Photoacoustic Sensor

open access: yesSensors, 2019
This review aims to discuss the latest advancements of an acoustic detection module (ADM) based on quartz-enhanced photoacoustic spectroscopy (QEPAS). Starting from guidelines for the design of an ADM, the ADM design philosophy is described.
Tingting Wei   +3 more
doaj   +1 more source

Gallium Nitride‐Based Electrode Materials for Supercapacitors: From Wide Band Semiconductor to Energy Storage Platform

open access: yesSmall, EarlyView.
This review focuses on capability of Gallium Nitride (GaN)‐based supercapacitors, bordering the advancement from porous architecture to novel hybrid nanostructures. It systematically investigates synthesis approaches and charge storage mechanisms that generate remarkable energy densities and competent cyclic stability.
Farasat Haider   +7 more
wiley   +1 more source

Review of Recent Advances in QEPAS-Based Trace Gas Sensing

open access: yesApplied Sciences, 2018
Quartz-enhanced photoacoustic spectroscopy (QEPAS) is an improvement of the conventional microphone-based photoacoustic spectroscopy. In the QEPAS technique, a commercially available millimeter-sized piezoelectric element quartz tuning fork (QTF) is used
Yufei Ma
doaj   +1 more source

Mechanical and optical nanodevices in single-crystal quartz

open access: yes, 2017
Single-crystal {\alpha}-quartz, one of the most widely used piezoelectric materials, has enabled a wide range of timing applications. Owing to the fact that integrated thin-film based quartz platform is not available, most of these applications rely on ...
Lončar, Marko   +3 more
core   +1 more source

Scanning microSQUID Force Microscope

open access: yes, 2001
A novel scanning probe technique is presented: Scanning microSQUID Force microscopy (SSFM). The instrument features independent topographic and magnetic imaging. The SSFM operates in a dilution refrigerator in cryogenic vacuum.
Hasselbach, K., Mailly, D., Veauvy, C.
core   +1 more source

Rieske Iron–Sulfur Cluster Proteins From an Anaerobic Ammonium Oxidizer Suggest Unusual Energetics in Their Parent Rieske/Cytochrome b Complexes

open access: yesProteins: Structure, Function, and Bioinformatics, Volume 94, Issue 4, Page 905-920, April 2026.
ABSTRACT Anaerobic ammonium‐oxidizing (anammox) bacteria employ a unique, hydrazine‐based pathway to obtain energy from nitrite and ammonium. These organisms possess distinct Rieske/cytochrome b complexes whose precise role in anammox metabolism remains unclear, but which have been proposed to include the generation of NAD(P)H.
David Hauser   +4 more
wiley   +1 more source

New fabrication technique for highly sensitive qPlus sensor with well-defined spring constant

open access: yes, 2015
A new technique for the fabrication of highly sensitive qPlus sensor for atomic force microscopy (AFM) is described. Focused ion beam was used to cut then weld onto a bare quartz tuning fork a sharp micro-tip from an electrochemically etched tungsten ...
Huff, Taleana   +7 more
core   +1 more source

Polymer‐Derived Nickel‐Iron Silicide‐Based Bimetallic Catalysts: Synthesis, Characterization, and Enhanced Catalytic Properties Toward the Oxygen Evolution Reaction

open access: yesChemElectroChem, Volume 13, Issue 6, 17 March 2026.
The growing demand for green energy highlights the need for efficient hydrogen production through water splitting. Designing bimetallic electrocatalysts is crucial for this goal. Transition metal silicides are promising due to their abundance and high electrical conductivity.
Yaohao Zhang   +7 more
wiley   +1 more source

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