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A.A. Shul'ga
Researcher at Taras Shevchenko National University of Kyiv
Publications - 13
Citations - 401
A.A. Shul'ga is an academic researcher from Taras Shevchenko National University of Kyiv. The author has contributed to research in topics: Biosensor & Glucose oxidase. The author has an hindex of 12, co-authored 13 publications receiving 396 citations. Previous affiliations of A.A. Shul'ga include École centrale de Lyon.
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Journal ArticleDOI
A cell biosensor specific for formaldehyde based on pH-sensitive transistors coupled to methylotrophic yeast cells with genetically adjusted metabolism.
Yaroslav I. Korpan,Mykhailo Gonchar,N.F. Starodub,A.A. Shul'ga,Andriy A. Sibirny,Anna V. El'skaya +5 more
TL;DR: A cell biosensor specific for formaldehyde was developed using double-mutant cells of the methylotrophic yeast Hansenula polymorpha A3-11 with high specificity to formaldehyde with no response to several organic acids, methanol, and other alcohols, except for low sensitivity to ethanol.
Journal ArticleDOI
Glucose-sensitive field-effect transistor with additional Nafion membrane: Reduction of influence of buffer capacity on the sensor response and extension of its dynamic range
Alexey P. Soldatkin,Anna V. El'skaya,A.A. Shul'ga,L.I. Netchiporouk,A.M. Nyamsi Hendji,Nicole Jaffrezic-Renault,Claude Martelet +6 more
TL;DR: In this article, Nafion membranes were deposited on the top of the glucose ENFETs by a spin-coating procedure, which resulted in a substantial reduction of the effect of the buffer concentration on the EN-FET's response and in an extension of the dynamic range of the sensor up to concentrations of more than 10 mM glucose.
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Glucose sensitive conductometric biosensor with additional Nafion membrane: reduction of influence of buffer capacity on the sensor response and extension of its dynamic range
A. P. Soldatkin,A. P. Soldatkin,Anna V. El'skaya,A.A. Shul'ga,A.A. Shul'ga,A.S. Jdanova,S. V. Dzyadevich,Nicole Jaffrezic-Renault,Claude Martelet,Paul Clechet +9 more
TL;DR: In this paper, the effects of buffer concentration and ionic strength were examined for the glucose sensors with and without Nafion membranes, and the comparison of the properties of the developed conductometric glucose biosensors (operational and storage stability, reproducibility of measurements) demonstrates better performance of the sensor with an additional nafion membrane.
Journal ArticleDOI
Overall characterization of ISFET-based glucose biosensor
A.A. Shul'ga,A.C. Sandrovsky,V. I. Strikha,Alexey P. Soldatkin,N.F. Starodub,Anna V. El'skaya +5 more
TL;DR: In this paper, two types of glucose-sensitive enzyme field effect transistor (ENFET) with glucose oxidase immobilized in polyacrylamide gel (PAAG) and by crosslinking with bovine serum albumin (BSA) have been investigated.
Journal ArticleDOI
Operation of an ISFET with non-insulated substrate directly exposed to the solution
A.A. Shul'ga,L.I. Netchiporouk,A.K. Sandrovsky,A.A. Abalov,O.S. Frolov,Yu.G. Kononenko,H. Maupas,Claude Martelet +7 more
TL;DR: In this paper, a probe-type n-channel depletion-mode Si3N4-ISFET with the substrate in direct contact with solution is described, and a proper mode of ISFET operation is achieved when it is electrically isolated from the solution by a reversely biased diode formed by an n-type source-channel drain region and a p-type substrate.