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Micro- and Nanofluidic pH Sensors Based on Electrodiffusioosmosis [PDF]

open access: yesMicromachines
Recently, various kinds of micro- and nanofluidic functional devices have been proposed, where a large surface-to-volume ratio often plays an important role in nanoscale ion transport phenomena.
Tadashi Takagi   +2 more
doaj   +2 more sources

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

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

Evaluation of single-use optical and electrochemical pH sensors in upstream bioprocessing [PDF]

open access: yesHeliyon
Culture pH is a critical process parameter during CHO cell bioreactor operations that is key for proper cell growth, protein production, and maintaining the critical quality attributes of a monoclonal antibody drug substance.
Erica J. Fratz-Berilla   +5 more
doaj   +2 more sources

Highly Sensitive Magnesium-Doped ZnO Nanorod pH Sensors Based on Electrolyte–Insulator–Semiconductor (EIS) Sensors [PDF]

open access: yesSensors, 2021
For highly sensitive pH sensing, an electrolyte insulator semiconductor (EIS) device, based on ZnO nanorod-sensing membrane layers doped with magnesium, was proposed. ZnO nanorod samples prepared via a hydrothermal process with different Mg molar ratios (
Ensaf Mohammed Al-Khalqi   +3 more
doaj   +2 more sources

pH response and mechanical properties of Fe2O3–TeO2-based glass/stainless steel enamel electrodes for pH sensors [PDF]

open access: yesHeliyon, 2023
Glass pH sensors are unsuitable for in vivo biomedical, clinical, or food applications because of the brittleness of glass and the difficulty in measuring small volumes.
Tadanori Hashimoto   +4 more
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

Negative Capacitance Dual-Gated ISFETs as Ultra-Sensitive pH Sensors [PDF]

open access: yesACS Omega, 2023
Fahimul Islam Sakib   +3 more
doaj   +2 more sources

Advancements in Optical Fiber Sensors for pH Measurement: Technologies and Applications

open access: yesSensors
Measuring pH is a critical parameter in environmental monitoring, biomedical diagnostics, food safety, and industrial processes. Optical fiber sensors have proven highly effective for pH detection due to their exceptional sensitivity, rapid response, and
Alaa N. D. Alhussein   +6 more
doaj   +2 more sources

RANCANG BANGUN ALAT UKUR SISTEM MONITORING pH DAN SUHU KOLAM IKAN LELE BERBASIS IoT DENGAN ESP8266

open access: yesJurnal Kumparan Fisika, 2022
ABSTRAK   Besaran fisika dapat berpengaruh baik secara langsung maupun tidak langsung terhadap keberlangsungan hidup makhluk hidup baik di darat maupun di air, termasuk pada budidaya ikan lele. Jika kualitas air selalu berubah-ubah atau tidak stabil,
Fikri Hidayat   +2 more
doaj   +1 more source

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