Results 11 to 20 of about 112,447 (225)

A Novel Turn-On Fluorescent Sensor Based on Sulfur Quantum Dots and MnO₂ Nanosheet Architectures for Detection of Hydrazine

Nanomaterials, 2022
In this paper, the SQDs@MnO2 NS as the probe was applied to construct a novel “turn-on” fluorescent sensor for sensitive and selective detection of hydrazine (N2H4).
Xin Li, Xiaobin Wang, Wei Guo, Feng Luan, Chunyuan Tian, Xuming Zhuang, Lijun Zhao   +6 more
doaj   +1 more source

A Steel Ball Surface Quality Inspection Method Based on a Circumferential Eddy Current Array Sensor

Sensors, 2017
To efficiently inspect surface defects on steel ball bearings, a new method based on a circumferential eddy current array (CECA) sensor was proposed here.
Huayu Zhang, Fengqin Xie, Maoyong Cao, Mingming Zhong   +3 more
doaj   +1 more source

All-solid-state AlGaN/GaN-based ion-sensitive heterostructure field effect transistor pH sensor microprobe encapsulated in medical needle

AIP Advances, 2022
It is very important to monitor pH values. In this paper, we fabricated an all-solid-state AlGaN/GaN-based ion-sensitive heterostructure field effect transistor (ISHFET) pH sensor microprobe. The microprobe could facilitate measurement of pH values.
Fengge Wang, Minjie Zhang, Honghui Liu, Yanyan Xu, Zhiwen Liang, Junyu Shen, Zhengwen Xiao, Chaokun Yan, Zhisheng Wu, Yang Liu, Baijun Zhang   +10 more
doaj   +1 more source

Fabrication of a Simple and Sensitive Electrochemical Dicyandiamide Sensor Based on Molecularly Imprinted Technology

International Journal of Electrochemical Science, 2015
A novel electrochemical sensor for dicyandiamide (DCD) recognition and detection was fabricated by using molecularly imprinted polymer (MIP) technique. The MIP sensor was electropolymerized on the surface of a golden electrode via cyclic voltammetry (CV).
Hongwu Wang, Yanqing Liu, Shoulian Wei, Su Yao, Siyi Gong   +4 more
doaj   +1 more source

A Highly Water-Soluble Fluorescent and Colorimetric pH Probe

Crystals, 2020
A new 5-(4-((2-(benzothiazole-2-carbonyl)hydrazono)methyl)-3-hydroxyphenoxy)-N,N,N-trimethylpentan-1-aminium bromide (BTABr) fluorescent and colorimetric pH probe was easily synthesized by the condensation reaction of benzothiazole-2-carbohydrazide with ...
Rosita Diana, Ugo Caruso, Angela Tuzi, Barbara Panunzi   +3 more
doaj   +1 more source

Graphene Oxide Nanoparticles Modified Paper Electrode as a Biosensing Platform for Detection of the htrA Gene of O. tsutsugamushi

Sensors, 2021
The unique structural and electrochemical properties of graphene oxide (GO) make it an ideal material for the fabrication of biosensing devices. Therefore, in the present study, graphene oxide nanoparticles modified paper electrodes were used as a low ...
Deepak Kala, Tarun Kumar Sharma, Shagun Gupta, Vivek Verma, Atul Thakur, Ankur Kaushal, Alex V. Trukhanov, Sergei V. Trukhanov   +7 more
doaj   +1 more source

Dual-MWCNT Probe Thermal Sensor Assembly and Evaluation Based on Nanorobotic Manipulation inside a Field-Emission-Scanning Electron Microscope

International Journal of Advanced Robotic Systems, 2015
We report a thermal sensor composed of two multiwalled carbon nano-tubes (MWCNTs) inside a field-emission-scanning electron microscope. The sensor was assembled using a nanorobotic manipulation system, which was used to construct a probe tip in order to ...
Zhan Yang, Pengbo Wang, Yajing Shen, Tao Chen, Liguo Chen, Qiang Huang, Lining Sun, Toshio Fukuda   +7 more
doaj   +1 more source

Development of a High-Precision Touch-Trigger Probe Using a Single Sensor

Applied Sciences, 2016
To measure various components with nano-scale precision, a new high-precision touch-trigger probe using a single low-cost sensor for a micro-coordinate measuring machine (CMM) is presented in this paper.
Rui-Jun Li, Meng Xiang, Ya-Xiong He, Kuang-Chao Fan, Zhen-Ying Cheng, Qiang-Xian Huang, Bin Zhou   +6 more
doaj   +1 more source

A Fiber Optic Sensor Using a Molecularly Imprinted Chitosan Membrane Coating on a Fiber Surface as a Transducer for Discriminating 4-Nitrophenol from Its Positional Isomers

Sensors
An optical fiber chemical sensor using a molecularly imprinted chitosan membrane coated on the surface of a bent optical fiber probe was developed for selectively analyzing 4-nitrophenol (4-NP) in water samples.
Myra Arana, Shiquan Tao
doaj   +1 more source

Fabrication of Schiff base coordinated ZnS nanoparticles for enhanced photocatalytic degradation of chlorpyrifos pesticide and detection of heavy metal ions

Journal of Materiomics, 2019
We report the simple synthesis of zinc sulfide nanoparticles (ZnS NPs) by a co-precipitation method using Schiff base, (2-[(4-methoxy-phenylimino)-methyl]-4-nitrophenol) as a capping agent.
Dasari Ayodhya, Guttena Veerabhadram
doaj   +1 more source