Results 31 to 40 of about 594,359 (210)

Spider Silk-Improved Quartz-Enhanced Conductance Spectroscopy for Medical Mask Humidity Sensing

open access: yesMolecules, 2022
Spider silk is one of the hottest biomaterials researched currently, due to its excellent mechanical properties. This work reports a novel humidity sensing platform based on a spider silk-modified quartz tuning fork (SSM-QTF). Since spider silk is a kind
Leqing Lin   +11 more
doaj   +1 more source

Quartz Tuning Fork as Humidity Sensor

open access: yesJournal of Nanomedicine & Nanotechnology, 2017
This paper highlight, a novel and simple solution growth method to develop the deposition of nanocrystalline ZnO films on QTF to act as sensor, integrating merits of both SILAR and CBD techniques. The obtained film is characterized by high deposition rate, high film and used for the humidity sensing.
Padmasine KG, Muruganand S
openaire   +1 more source

Polymer Nanobridge On a Microfabricated Quartz Tuning Fork [PDF]

open access: yesECS Meeting Abstracts, 2013
Abstract not Available.
Sangmin Jeon, Seongjae Lee, Minhyuk Yun
openaire   +1 more source

Spring constant of a tuning-fork sensor for dynamic force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2012
We present an overview of experimental and numerical methods to determine the spring constant of a quartz tuning fork in qPlus configuration. The simple calculation for a rectangular cantilever is compared to the values obtained by the analysis of the ...
Dennis van Vörden   +4 more
doaj   +1 more source

Influence of Air Pressure on the Resonance Properties of a T-Shaped Quartz Tuning Fork Coupled with Resonator Tubes

open access: yesApplied Sciences, 2021
A theoretical analysis and experimental investigation of the influence of gas pressure on resonance properties, namely, the quality factor and resonance frequency, of a T-shaped quartz tuning fork (QTF) is reported here. Two configurations are considered:
Mariagrazia Olivieri   +9 more
doaj   +1 more source

Quartz Tuning Fork as in-situ Sensor of Bacterial Biofilm

open access: yesProcedia Engineering, 2014
AbstractPiezoelectric Quartz Tuning Forks (QTFs) were used as a biofilm formation sensors. Modulated excitation technique allowed to measure the current generated by the QTF during the ringdown of the oscillations at conductive environments such as a liquid culture growth medium.
Piasecki, Tomasz   +4 more
openaire   +1 more source

Surface Chemistry at the Nanometer Scale [PDF]

open access: yes, 2011
This thesis describes research towards understanding surface chemical and physical processes, as well as their effects on the underlying substrate properties, at the nanometer and atomic scales. We demonstrate a method to tune the density of etch pits on
Cao, Peigen
core   +1 more source

Fluid Sensing Using Quartz Tuning Forks—Measurement Technology and Applications

open access: yesSensors, 2019
We provide an overview of recent achievements using quartz tuning forks for sensing liquid viscosity and density. The benefits of using quartz crystal tuning forks (QTFs) over other sensors are discussed on the basis of physical arguments and issues arising in real world applications.
Thomas Voglhuber-Brunnmaier   +3 more
openaire   +5 more sources

Highly Sensitive Broadband Photodetectors Based on Donor–Acceptor 2D Conjugated Coordination Polymers

open access: yesAdvanced Materials, EarlyView.
Donor–acceptor molecular design and chemical vapor deposition growth enable the two‐dimensional nickel‐tetraaminobenzoquinone films with strong broadband absorption and efficient charge separation. The resulting photodetectors exhibit a structured broadband response with a high responsivity of ∼3.1 A W−1 and a response time of ∼170 µs, which surpasses ...
Yunxu Chen   +14 more
wiley   +1 more source

Influence of the Gain–Bandwidth of the Front-End Amplifier on the Performance of a QEPAS Sensor

open access: yesAcoustics
The quartz tuning fork used as an acoustic sensor in quartz-enhanced photo-acoustic spectroscopy gas detection systems is usually read out by means of a transimpedance preamplifier based on a low-noise operational amplifier closed in a feedback loop. The
Luigi Lombardi   +2 more
doaj   +1 more source

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