LABEL-FREE ELECTROCHEMICAL DETECTION OF TETRACYCLINE BY AN APTAMER NANO-BIOSENSOR
2012 (English)In: Analytical Letters, ISSN 0003-2719, E-ISSN 1532-236X, Vol. 45, no 9, 986-992 p.Article in journal (Refereed) Published
A novel aptamer nano-porous silicon (PS) biosensor was investigated for the rapid determination of tetracyclines. Electrochemical impedance spectroscopy (EIS) was used to analyze the behavior of the sensor. The specific binding of tetracycline to the aptamer biosensor led to a decrease in impedance. The corresponding impedance spectra (Nyquist plots) were obtained when serial concentrations of tetracycline were added into the system. An equivalent electrical circuit was used to fit the impedance data. The linear range of the sensor was 2.1-62.4 nM.
Place, publisher, year, edition, pages
Taylor and Francis: STM, Behavioural Science and Public Health Titles / Taylor and Francis , 2012. Vol. 45, no 9, 986-992 p.
Aptamer; Biosensor; Impedance; Nano-porous silicon; Tetracycline
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-79840DOI: 10.1080/00032719.2012.670784ISI: 000305209100004OAI: oai:DiVA.org:liu-79840DiVA: diva2:544378