کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
867632 1470992 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tapered plastic optical fiber-based biosensor – Tests and application
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Tapered plastic optical fiber-based biosensor – Tests and application
چکیده انگلیسی

Cells detection is crucial in microbiological analysis of clinical, food, water or environmental samples. However, currently employed methods are time consuming. Plastic optical fiber (POF) biosensors consist in a viable alternative for rapid and inexpensive scheme for detection. In order to study the sensitivity of tapers for microbiological detection, geometric parameters are studied, such as the taper waist diameter since the formation of taper regions are the key sensing element in this particular type of sensors. In this study, a series of POF taper sensors were prepared using a specially developed tapering machine, and the dispersion of geometric dimensions is evaluated, aiming to achieve the best tapering characteristics which will provide a better sensitivity on the sensor response. The fiber tapers that presented the finest results were those constructed in U-shaped (bended) configurations, with taper waist diameters ranging from 0.40 mm up to 0.50 mm. These fiber tapers were used as the main section of the monitoring device, and when chemically treated as immunosensors for the detection of bacteria, yeast and erythrocytes.


► Study of the waist diameter influence in tapered plastic optical fiber (POF) applied in biosensing.
► U-shaped POF applied in biosensing.
► Comparison of the biosensor's response to bacterial cells, yeasts and blood cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 30, Issue 1, 15 December 2011, Pages 328–332
نویسندگان
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