کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7222995 | 1470555 | 2018 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Zinc oxide, gold and graphene-based surface plasmon resonance (SPR) biosensor for detection of pseudomonas like bacteria: A comparative study
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present paper, we have studied the better performance of zinc oxide (ZnO), gold (Au) and graphene-based SPR biosensor for the detection of pseudomonas and pseudomonas like bacteria. The performance of proposed SPR biosensor is based on theoretical analysis of the sensitivity, detection accuracy, quality parameter and electric field intensity enhancement factor (EFIEF) with angular interrogation method. In this biosensor, prism (BK-7 glass) base is coated with ZnO followed by Au, graphene and different affinity layers, water is used as sensing medium. The advantage of the present biosensor is the hybrid structure of graphene, gold and ZnO with enhanced sensitivity in which the molecular recognition sites on graphene bind strongly the pseudomonas like bacteria with the help of affinity layers. ZnO is responsible for the larger shift in resonance angle that leads a significant enhancement in the sensitivity of the present biosensor. On analyzing the results, we have found that the proposed biosensor has a greater sensitivity of 187.43 deg/RIU, detection accuracy of 2.05 deg-1 and quality parameter of 29.33 RIU-1 as compared to the other reported conventional SPR biosensor for the detection of pseudomonas like bacteria.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 172, November 2018, Pages 697-707
Journal: Optik - Volume 172, November 2018, Pages 697-707
نویسندگان
Angad S. Kushwaha, Anil Kumar, Rajeev Kumar, Monika Srivastava, S.K. Srivastava,