Results 41 to 50 of about 2,732,119 (301)

Nanomechanical DNA Origami pH Sensors [PDF]

open access: yesSensors, 2014
Single-molecule pH sensors have been developed by utilizing molecular imaging of pH-responsive shape transition of nanomechanical DNA origami devices with atomic force microscopy (AFM). Short DNA fragments that can form i-motifs were introduced to nanomechanical DNA origami devices with pliers-like shape (DNA Origami Pliers), which consist of two ...
Akinori Kuzuya   +5 more
openaire   +3 more sources

Bio-sensing textile based patch with integrated optical detection system for sweat monitoring [PDF]

open access: yes, 2009
Sensors, which can be integrated into clothing and used to measure biochemical changes in body fluids, such as sweat, constitute a major advancement in the area of wearable sensors.
Wallace, Gordon   +5 more
core   +2 more sources

Rancang bangun sensor PH menggunakan gold – extended gate field effect transistor

open access: yesJurnal Eltek, 2020
ABSTRAK Banyak peneliti telah mengembangkan berbagai jenis biosensor, salah satunya sensor pH memanfaatkan MOSFET. Penelitian awal digunakan ISFET sebagai pendeteksi derajat keasamaan, seiring perkembangan teknologi digunakan EGFET sebagai media ...
Leonardo Kamajaya   +2 more
doaj   +1 more source

Fabrication and Optimization of Nafion as a Protective Membrane for TiN-Based pH Sensors

open access: yesSensors, 2023
In this study, a solid-state modified pH sensor with RF magnetron sputtering technology was developed. The sensor consists of an active electrode consisting of a titanium nitride (TiN) film with a protective membrane of Nafion and a reference glass ...
Shimrith Paul Shylendra   +2 more
doaj   +1 more source

pH sensor based on boron nitride nanotubes

open access: yes, 2009
A submicrometer-sized pH sensor based on biotin-fluorescein-functionalized multiwalled BN nanotubes with anchored Ag nanoparticles is designed. Intrinsic pH-dependent photoluminescence and Raman signals in attached fluorescein molecules enhanced by Ag ...
Huang, Q.   +9 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

A Voltammetric pH Sensor for Food and Biological Matrices [PDF]

open access: yes, 2020
Measurement of pH is of fundamental importance in a wide range of environmental, biological and industrial applications. Glass electrode and litmus paper are widely used for this, but the former is difficult to miniaturize, prone to drift and fragile ...
Lorenzo, Del Noce   +11 more
core   +2 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Configuration for Micro pH Sensor [PDF]

open access: yes, 2003
A fully integrated pH sensor with a built-in reference electrode is proposed. An iridium oxide microelectrode and a pH-insensitive field-effect transistor are used as a pH sensor and a reference electrode, respectively.
Kim, Young-Jin   +4 more
core   +1 more source

A fully textile-based skin pH sensor

open access: yesJournal of Industrial Textiles, 2022
This paper presents a textile-based pH sensor with high flexibility fabricated by printing a polymer composite as a working electrode and Ag/AgCl/solid electrolyte as a reference electrode on a textile substrate. The textile working electrode is composed
Min-Young Choi   +6 more
doaj   +1 more source

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