Results 11 to 20 of about 2,419,010 (304)

Graphene and Perovskite-Based Nanocomposite for Both Electrochemical and Gas Sensor Applications: An Overview

Sensors, 2020
Perovskite and graphene-based nanocomposites have attracted much attention and been proven as promising candidates for both gas (H2S and NH3) and electrochemical (H2O2, CH3OH and glucose) sensor applications.
Tse-Wei Chen, Rasu Ramachandran, Shen-Ming Chen, Ganesan Anushya, Kumarasamy Ramachandran   +4 more
doaj   +1 more source

How Low Can It Go? ATR-FTIR Characterization of Compounds Isolated from Ginger at the Nanogram Level

Engineering Proceedings, 2023
This proof-of-concept study demonstrated the potential of attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy for the structural characterization of natural products when only very small quantities of the target compound are ...
Joel B. Johnson, Ryan J. Batley, Janice S. Mani, Mani Naiker   +3 more
doaj   +1 more source

Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds

Membranes, 2020
In the last 50 years, plasticized polyvinyl chloride (PVC) membranes have gained unique importance in chemical sensor development. Originally, these membranes separated two solutions in conventional ion-selective electrodes.
Ernő Lindner, Marcin Guzinski, Bradford Pendley, Edward Chaum   +3 more
doaj   +1 more source

Stochastic Time Response and Ultimate Noise Performance of Adsorption-Based Microfluidic Biosensors

Biosensors, 2021
In order to improve the interpretation of measurement results and to achieve the optimal performance of microfluidic biosensors, advanced mathematical models of their time response and noise are needed. The random nature of adsorption–desorption and mass
Ivana Jokić, Zoran Djurić, Katarina Radulović, Miloš Frantlović, Gradimir V. Milovanović, Predrag M. Krstajić   +5 more
doaj   +1 more source

Determination of uranium in solutions by the neutron activation analysis method with 252Cf radionuclide neutron source [PDF]

Nuclear Technology and Radiation Protection, 2021
A determination option for 238U in solutions by the neutron activation analysis was investigated. A radionuclide treatment based on 252Cf was used as a neutron source.
Ivannikov Sergei I., Markin Nikita S., Zheleznov Veniamin V.   +2 more
doaj   +1 more source

Material Limitations on the Detection Limit in Refractometry [PDF]

, 2009
We discuss the detection limit for refractometric sensors relying on high-Q optical cavities and show that the ultimate classical detection limit is given by min{Dn} > eta with n+i*eta being the complex refractive index of the material under ...
Armani, Arnold, Azzouz, Bog, Edwards, Erickson, Erickson, Fan, Hanumegowda, Hossein-Zadeh, Jensen, Kiraz, Kiraz, Kwon, Mandal, Monat, Mortensen, Mølhave, Niels Mortensen, Nunes, Peder Skafte-Pedersen, Pedro Nunes, Psaltis, Querry, Sanshui Xiao, Schmidt, Skivesen, Teraoka, Tomljenovic-Hanic, White, Xu   +30 more
core   +6 more sources

Electronic Nose Testing Procedure for the Definition of Minimum Performance Requirements for Environmental Odor Monitoring

Sensors, 2016
Despite initial enthusiasm towards electronic noses and their possible application in different fields, and quite a lot of promising results, several criticalities emerge from most published research studies, and, as a matter of fact, the diffusion of ...
Lidia Eusebio, Laura Capelli, Selena Sironi   +2 more
doaj   +1 more source

Comparison of Sensitivity and Quantitation between Microbead Dielectrophoresis-Based DNA Detection and Real-Time PCR

Biosensors, 2017
In this study, we describe a microbead-based method using dielectrophoresis (DEP) for the fast detection of DNA amplified by polymerase chain reaction (PCR).
Michihiko Nakano, Zhenhao Ding, Junya Suehiro   +2 more
doaj   +1 more source

Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol

Biosensors, 2022
Cr-MOF nanoparticles were synthesized by a simple hydrothermal method, and their morphology and structure were characterized by SEM, TEM, and XRD techniques.
Chao Hu, Ping Pan, Haiping Huang, Hongtao Liu   +3 more
doaj   +1 more source

Effect of UV Scattering on Detection Limit of SO₂ Cameras

Remote Sensing, 2023
SO2 ultraviolet (UV) camera technology has been successfully applied to the accurate imaging detection of pollutant gas concentration; however, the actual detection ability of this technology has not been intensively studied, especially the detection ...
Kuijun Wu, Zihao Zhang, Jianjun Guo, Xiangrui Hu, Juan Li, Faquan Li, Weiwei He   +6 more
doaj   +1 more source