Results 11 to 20 of about 2,339,090 (251)

Illumination of the Spatial Order of Intracellular pH by Genetically Encoded pH-Sensitive Sensors

open access: yesSensors, 2013
Fluorescent proteins have been extensively used for engineering genetically encoded sensors that can monitor levels of ions, enzyme activities, redox potential, and metabolites.
Mojca Benčina
doaj   +2 more sources

Review on Hydrogel-based pH Sensors and Microsensors

open access: yesSensors, 2008
Stimuli-responsive hydrogels are materials with great potential for development of active functionalities in fluidics and micro-fluidics. Based on the current state of research on pH sensors, hydrogel sensors are described qualitatively and ...
Hans-Jürgen P. Adler   +5 more
doaj   +2 more sources

Miniaturized pH Sensors Based on Zinc Oxide Nanotubes/Nanorods

open access: yesSensors, 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   +5 more
doaj   +2 more sources

Genetically Encoded Ratiometric pH Sensors for the Measurement of Intra- and Extracellular pH and Internalization Rates

open access: yesBiosensors, 2022
pH-sensitive fluorescent proteins as genetically encoded pH sensors are promising tools for monitoring intra- and extracellular pH. However, there is a lack of ratiometric pH sensors, which offer a good dynamic range and can be purified and applied ...
Lennard Karsten   +6 more
doaj   +2 more sources

pH-sensor

open access: yesInstrumentation viewpoint, 2012
This paper presents a design of a marine instrument for the measurement of pH in seawater. The measurement system consists of a pH electrode connected to the underwater observatory OBSEA. The extracted data are useful for scientists researching ocean acidification.
VAN VEEN JACOBUS JOHANNES FREDERIK   +1 more
  +10 more sources

Reduced drift of CMOS ISFET pH sensors using graphene sheets [PDF]

open access: yes, 2021
Reduction of drift in Complementary Metal Oxide-Semiconductor (CMOS) Ion-Sensitive Field-Effect Transistor (ISFET) pH sensors is demonstrated using monolayer and multilayer graphene sheets.
Georgiou, Pantelis   +5 more
core   +1 more source

Performance of miniaturised thick-film solid state pH sensors [PDF]

open access: yes, 2012
The performance of novel solid-state Thick-Film pH sensor for water quality sampling suitable for deployment in remote catchment areas is described. These miniaturised screen printed planar pH sensors are an alternative to glass pH electrodes, which have
Atkinson, John   +9 more
core   +1 more source

Inkjet-printed dissolved oxygen and pH sensors on flexible plastic substrates

open access: yes, 2022
Art. 102460FThere are a broad range of applications such as analytical sensors, biosensing and medical applications that require the monitoring of dissolved oxygen (DO) and pH using sensitive, stable, compact and low cost sensors.
Moya, A.   +6 more
core   +1 more source

Inkjet printed LED based pH chemical sensor for gas sensing [PDF]

open access: yes, 2009
Predictable behaviour is a critical factor when developing a sensor for potential deployment within a wireless sensor network (WSN). The work presented here details the fabrication and performance of an optical chemical sensor for gaseous acetic acid ...
O'Toole, Martina   +8 more
core   +2 more sources

The optimisation of a paired emitter-detector diode optical pH sensing device [PDF]

open access: yes, 2010
With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance.
Corcoran, Brian   +11 more
core   +2 more sources

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