Results 1 to 10 of about 21,137 (261)

Supramolecular Atropine Potentiometric Sensor [PDF]

Sensors, 2021
A supramolecular atropine sensor was developed, using cucurbit[6]uril as the recognition element. The solid-contact electrode is based on a polymeric membrane incorporating cucurbit[6]uril (CB[6]) as an ionophore, 2-nitrophenyl octyl ether as a solvent ...
Catarina Ferreira, Andreia Palmeira, Emília Sousa, Célia G. Amorim, Alberto Nova Araújo, Maria Conceição Montenegro   +5 more
doaj   +5 more sources

Control Circuits for Potentiostatic/Galvanostatic Polarization and Simultaneous Chemical Sensing by a Light-Addressable Potentiometric Sensor [PDF]

Sensors
A light-addressable potentiometric sensor (LAPS) is a semiconductor-based sensor platform for sensing and imaging of various chemical species. Being a potentiometric sensor, no faradaic current flows through its sensing surface, and no electrochemical ...
Tatsuo Yoshinobu, Rintaro Ikeda, Ko-ichiro Miyamoto   +2 more
doaj   +2 more sources

Wireless wearable potentiometric sensor for simultaneous determination of pH, sodium and potassium in human sweat [PDF]

Scientific Reports
This paper reports on the development of a flexible-wearable potentiometric sensor for real-time monitoring of sodium ion (Na+), potassium ion (K+), and pH in human sweat. Na0.44MnO2, polyaniline, and K2Co[Fe(CN)6] were used as sensing materials for Na+,
Nahid Rezvani Jalal, Tayyebeh Madrakian, Mazaher Ahmadi, Abbas Afkhami, Sina Khalili, Morteza Bahrami, Majid Roshanaei   +6 more
doaj   +2 more sources

Selective Thallium (I) Ion Sensor Based on Functionalised ZnO Nanorods [PDF]

Journal of Nanotechnology, 2012
Well controlled in length and highly aligned ZnO nanorods were grown on the gold-coated glass substrate by hydrothermal growth method. ZnO nanorods were functionalised with selective thallium (I) ion ionophore dibenzyldiaza-18-crown-6 (DBzDA18C6).
Z. H. Ibupoto, Syed M. Usman Ali, K. Khun, Magnus Willander   +3 more
doaj   +4 more sources

Chemically modified field effect transistors: the effect of ion-pair association on the membrane potentials [PDF]

, 1994
A theoretical model has been developed which relates physically accessible parameters to the formation of a membrane potential. The description is an extension of a theoretical description presented previously by our group, now including divalent cations
Bergveld, Piet, Bomer, Johan G., Cobben, P.L.H.M., Cobben, Peter L.H.M., Egberink, Richard J.M., Reinhoudt, David   +5 more
core   +22 more sources

A New, MWCNT-Based, Solid-State Thiabendazole-Selective Sensor

Sensors, 2022
Direct potentiometric measurements using solid-state sensors have a great potential for thiabendazole (TBZ) determination, considering simplicity, accuracy, and low cost.
Andrea Dandić, Ivana Novak, Marija Jozanović, Iva Pukleš, Aleksandar Széchenyi, Mateja Budetić, Mirela Samardžić   +6 more
doaj   +1 more source

A Flexible Printed Circuit Board-Based ZnO Enzymatic Uric Acid Potentiometric Biosensor Measurement and Characterization

IEEE Journal of the Electron Devices Society, 2023
This study prepared an enzymatic potentiometric uric acid sensor based on zinc oxide (ZnO) and uricase. Also, we develop a potentiometric differential measurement system.
Po-Hui Yang, Che-Tsung Chan, Ying-Sheng Chang   +2 more
doaj   +1 more source

Miniaturized solid-state sensor for inline monitoring of the microbial biodegradation of a biohazardous textile azo dye (Direct Red-81)

Talanta Open, 2022
Microbial biodegradation employs non-hazardous microbes to detoxify or eliminate toxic chemicals. Direct Red-81 (DR81) is a toxic and carcinogenic dye discharged in textile-industry wastewater and contaminates water resources.
Manar Omar Heragy, Azza Aziz M. Moustafa, Eman Saad Elzanfaly, Walaa A. Al-Shareef, Ahmed Sayed Saad   +4 more
doaj   +1 more source

A novel potentiometric sensor for the determination of Pb(II) ions based on a carbothioamide derivative in PVC matrix

Journal of the Turkish Chemical Society, Section A: Chemistry, 2022
In this research, a carbothioamide derivative molecule was synthesized to be used as an electroactive material, and poly (vinyl chloride) (PVC) membrane lead(II)–selective potentiometric sensors with different components were prepared.
Oğuz ÖZBEK
doaj   +1 more source

Potentiometric Electronic Tongue for Pharmaceutical Analytics: Determination of Ascorbic Acid Based on Electropolymerized Films

Chemosensors, 2021
This work deals with the design of an experimental potentiometric electronic tongue (ET) for the recognition of various samples of effervescent tablets with different ascorbic acid (vitamin C) contents.
Gabriela Broncová, Vadim Prokopec, Tatiana V. Shishkanova   +2 more
doaj   +1 more source