کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
741796 894263 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resonance wavelength-dependent signal of absorptive particles in surface plasmon resonance-based detection
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Resonance wavelength-dependent signal of absorptive particles in surface plasmon resonance-based detection
چکیده انگلیسی

We describe the resonance wavelength-dependent signal of absorptive particles in surface plasmon resonance (SPR)-based detection using both modeling and experimental results. The particles, gold nanocages, have a significant absorption cross-section in the near-infrared (NIR), resulting in a wavelength-dependent refractive index as measured by SPR. The SPR signal due to the nanocages varies by four-fold over resonance wavelengths from 650 nm to 950 nm. The greatest SPR signal occurs at the longest resonance wavelengths; its magnitude is due to the inherent increase in sensitivity of SPR on gold with increasing wavelength and the optical absorption properties of the nanocages.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 123, Issue 1, 10 April 2007, Pages 606–613
نویسندگان
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