Temat: oxygen biosensor - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Low bod determination methods: the state-of-the-art
Autorzy:: Górski, Ł.
Trzebuniak, K.F.
Malinowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/185812.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biochemical oxygen demand
biosensor
wastewater
microbial sensor
biochemiczne zapotrzebowanie na tlen
ścieki
czujnik drobnoustrojów
Opis:: Biochemical Oxygen Demand (BOD) is an important factor used to measure water pollution. This article reviews recent developments of microbial biosensors with respect to their applications for low BOD estimation. Four main methods to measure BOD using a biosensor are described: microbial fuel cells, optical methods, oxygen electrode based methods and mediator-based methods. Each of them is based on different principles, thus a different approach is required to improve the limit of detection. A proper choice of microorganisms used in the biosensor construction and/or sample pre-treatment processes is also essential to improve the BOD lower detection limit.
Źródło:: Chemical and Process Engineering; 2012, 33, 4; 629-637
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Oznaczanie tlenu : od metody Winklera do czujników enzymatycznych
Determination of oxygen : from Winkler method to enzymatic sensor
Autorzy:: Dramińska, S.
Biernat, J. F.
Bilewicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/171495.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Chemiczne
Tematy:: oznaczanie tlenu
redukcja tlenu
bioelektrokataliza
bioczujnik tlenowy
lakaza
nanorurki węglowe
determination of oxygen
dioxygen reduction
bioelectrocatalysis
oxygen biosensor
laccase
carbon nanotubes
Opis:: Monitoring of dioxygen levels is of utmost importance from the view-point of life processes, medical diagnostics, nutrition and chemical industries. In all these measurements both low and high levels of this element are important. The common methods for the determination of dioxygen are the Winkler method, Clark electrode and pulsoxymeters. A new, already strong field of research can be now recognized – the development of miniaturized biosensors of dioxygen, characterized by short response time, selectivity and utility in continuous monitoring of dioxygen. This trend can be seen in all fields where analytical methods are applied. The aim is to construct simple and, therefore, low cost devices and a good example of such device is the enzymatic biocathode sensitive towards dioxygen. The main issue in the construction of such electrodes is how to immobilize a redox enzyme on the conductive support in a way allowing to retain its full activity and to provide efficient transfer of charge between the electrode and the active centres of the enzymes. The difficulty in achieving suitable electrical contact can be solved by applying suitable carbon nanomaterials, increasing the working surface of the electrode and providing access to the active centres of the enzyme molecules.
Źródło:: Wiadomości Chemiczne; 2015, 69, 9-10; 751-766
0043-5104
2300-0295
Pojawia się w:: Wiadomości Chemiczne
Dostawca treści:: Biblioteka Nauki

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