Results 31 to 40 of about 113,700 (152)

Miniaturized pH Sensors Based on Zinc Oxide Nanotubes/Nanorods

Sensors, 2009
ZnO nanotubes and nanorods grown on gold thin film were used to create pH sensor devices. The developed ZnO nanotube and nanorod pH sensors display good reproducibility, repeatability and long-term stability and exhibit a pH-dependent electrochemical ...
Magnus Willander, Omer Nur, Gul Amin, Muhammad Riaz, Syed M. Usman Ali, Alimujiang Fulati   +5 more
doaj   +1 more source

A New Class of Smart Gadolinium Contrast Agent for Tissue pH Probing Using Magnetic Resonance Imaging

Molecules, 2020
: Detecting tissue pH in vivo is extremely vital for medical diagnosis and formulation of treatment decisions. To this end, many investigations have been carried out to develop an accurate and efficient method of in vivo pH measurement.
Fouzi Mouffouk, Hacene Serrai, Sourav Bhaduri, Rik Achten, Mozhdeh Seyyedhamzeh, Ali A. Husain, Abdullah Alhendal, Mohammed Zourob   +7 more
doaj   +1 more source

Polyaniline-Based Flexible Sensor for pH Monitoring in Oxidizing Environments

Chemosensors
Measuring pH in oxidizing solutions is a crucial issue in areas such as aquaculture, water treatment, industrial chemistry, and environmental analysis.
Liam Bignall, Claire Magnenet, Catheline Ramsamy, Sophie Lakard, Simon Vassal, Boris Lakard   +5 more
doaj   +1 more source

Microneedle-based electrochemical sensors for real-time pH and sodium monitoring in physiological environments

Sensing and Bio-Sensing Research
This study proposes developing microneedle (MN) sensors for pH and sodium detection. MNs are minimally invasive, miniaturized needles capable of piercing the stratum corneum to access dermal interstitial fluid (ISF). They can offer accessible, quick, and
Fahima Rahman, Adam Ryan, Andrea Bocchino, Paul Galvin, Sofia Rodrigues Teixeira   +4 more
doaj   +1 more source

Upconversion Luminescence Sensitized pH-Nanoprobes

Molecules, 2017
Photon upconversion materials, featuring excellent photophysical properties, are promising for bio-medical research due to their low autofluorescence, non-cytotoxicity, low photobleaching and high photostability.
Manoj Kumar Mahata, Hyeongyu Bae, Kang Taek Lee   +2 more
doaj   +1 more source

Repetitive Measurements of Physiological pH by Implantable Optical Sensors in Muscles of adult Danio rerio: Preliminary Results [PDF]

Journal of Stress Physiology & Biochemistry, 2016
Encapsulated optical sensors are promising tool for measurements of physiological parameters inside living organisms. In the present study we tested the possibility to apply encapsulated fluorescent sensors to measure pH in muscles of adult Danio rerio ...
E.V. Borvinskaya, A.N. Gurkov, E.P. Shchapova, B.K. Baduev, I.A. Belousova, I.V. Meglinski, M.A. Timofeyev   +6 more
doaj  

Automation of Water Treatment System with pH Sensors, Conductivity Sensors and Turbidity Sensors Based on Microcontroller

Jurnal Jaringan Telekomunikasi
Water is main need for humans. People living around river use river water as consumsion, but majority of urban rivers are polluted. Polluted river water contains dissolved solids, unsTable water pH content and water turbidity.
Mitsal Iqbal Fadhlurrahman, Farida Arinie Soelistianto, Ahmad Wahyu Purwandi   +2 more
doaj   +1 more source

Piezoresistive Chemical Sensors Based on Functionalized Hydrogels

Chemosensors, 2014
Thin films of analyte-specific hydrogels were combined with microfabricated piezoresistive pressure transducers to obtain chemomechanical sensors that can serve as selective biochemical sensors for a continuous monitoring of metabolites. The gel swelling
Margarita Guenther, Thomas Wallmersperger, Gerald Gerlach   +2 more
doaj   +1 more source

Optical sensor for interstitial pH measurements

Journal of Biomedical Optics, 2007
An optical fiber sensor for measuring the pH in interstitial fluid is described. Microdialysis is the approach followed for extracting the sample from the subcutaneous adipose tissue. The interstitial fluid drawn flows through a microfluidic circuit formed by a microdialysis catheter in series with a pH glass capillary. The pH indicator (phenol red) is
Baldini, Francesco, Giannetti, Ambra, Mencaglia, Andrea A.   +2 more
openaire   +3 more sources

Electronic Sensor for pH Measurements in Nanoliters

Procedia Engineering, 2014
An original design is proposed for the fabrication of an electronic sensor. The device consists on a field effect transistor (FET) combined with an integrated microfluidic channel and is devoted to charges detection in liquids. The technological process has been optimized.
Bouhadda, Ismaïl, de Sagazan, Olivier, Le Bihan, France   +2 more
openaire   +4 more sources