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3 results on '"Edita Voitechovic"'

1. Multisensor Systems and Arrays for Medical Applications Employing Naturally-Occurring Compounds and Materials

Author

Rasa Pauliukaite and Edita Voitechovič

Subjects
naturally-occurring compounds, multisensor system, electrochemical sensors, blood, urea, saliva, Chemical technology, TP1-1185
Abstract

The significant improvement of quality of life achieved over the last decades has stimulated the development of new approaches in medicine to take into account the personal needs of each patient. Precision medicine, providing healthcare customization, opens new horizons in the diagnosis, treatment and prevention of numerous diseases. As a consequence, there is a growing demand for novel analytical devices and methods capable of addressing the challenges of precision medicine. For example, various types of sensors or their arrays are highly suitable for simultaneous monitoring of multiple analytes in complex biological media in order to obtain more information about the health status of a patient or to follow the treatment process. Besides, the development of sustainable sensors based on natural chemicals allows reducing their environmental impact. This review is concerned with the application of such analytical platforms in various areas of medicine: analysis of body fluids, wearable sensors, drug manufacturing and screening. The importance and role of naturally-occurring compounds in the development of electrochemical multisensor systems and arrays are discussed.

Published
2020
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3. Fine structure and related properties of the assembleable carbon nanotubes based electrode for new family of biosensors with chooseable selectivity

Author

Vidute Gureviciene, Jurgis Barkauskas, Edita Voitechovic, Julija Razumiene, Virginijus Bukauskas, and Arū nas Šetkus

Subjects
Materials science, Biomedical Engineering, Carbohydrates, Bioengineering, Nanotechnology, macromolecular substances, Carbon nanotube, Biosensing Techniques, Microscopy, Scanning Probe, Sensitivity and Specificity, law.invention, Scanning probe microscopy, law, General Materials Science, Nanoscopic scale, Electrodes, Polycarboxylate Cement, Nanotubes, Carbon, technology, industry, and agriculture, General Chemistry, Condensed Matter Physics, Enzymes, Immobilized, Membrane, Glucose, Electrode, Selectivity, Biosensor, Layer (electronics)
Abstract

Surfaces of constituent parts of biosensors based on single wall carbon nanotube layer were investigated and compare for properly functioning and faulty biosensors. Though the original technology is acceptable for changing of the selectivity, only glucose sensitive biosensors are investigated. Based on the results of the study, a correlation between the features of the nanoscale structures and parameters of amperiometric biosensors for assemblage of which an innovative approach is described. Original template of the electrodes has been prepared on a base of single wall carbon nanotube layer deposited on the supporting polycarbonate membrane. Original immobilisation of enzymes within special membrane allows functional modification of biosensors being accomplished by simple replacement of the enzymatic membrane. The original technology leads to a novel family of biosensors acceptable for detection of wide range of carbohydrates. The morphology and the local electric properties of the constituent parts of the biosensors are characterized by scanning probe microscopy. The sensitivity, selectivity and stability are described for typical types of the biosensors.

Published
2012

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