scholarly journals Polypyrrole-Chitosan-CaFe2O4 Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Amir Reza Sadrolhosseini ◽  
Pooria Moozarm Nia ◽  
Suhaidi Shafie ◽  
Kamyar Shameli ◽  
Mohd Adzir Mahdi
Keyword(s):  
Methylene Blue ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Composite Layer ◽  
Calcium Ferrite ◽  
Cationic Dye ◽  
Methylene Orange ◽  
Angle Shift ◽  
Resonance Angle

A polypyrrole-chitosan-calcium ferrite nanocomposite was prepared using the electrodeposition method. The prepared layer was characterized by using Fourier transform infrared spectroscopy, the X-ray diffraction technique, and field emission electron microscopy. The thickness of the thin layers was in the range of 2.8 nm to 59.5 nm, and the refractive index of the composite layer was in the range of 1.66131+0.156i to 1.62734+0.167i. Detection and removal of cationic and anionic dyes, such as methylene blue and methylene orange, are subject of great interest for protecting environmental water. The layer composite was used to detect methylene orange and methylene blue using the surface plasmon resonance technique. Consequently, the polypyrrole-chitosan-calcium-ferrite composite layer interacted with the anionic and cationic dyes. The resonance angle shift for the detection of the cationic dye was larger than the resonance angle shift for the anionic dye. The sensor limit was achieved from a sensogram at about 0.01 ppm.

scholarly journals Binding Kinetics of Methylene Blue on Monolayer Graphene Investigated by Multiparameter Surface Plasmon Resonance

ACS Omega ◽  
2018 ◽  
Vol 3 (7) ◽  
pp. 7133-7140 ◽  
Author(s):  
Nur Selin Kaya ◽  
Anur Yadav ◽  
Michel Wehrhold ◽  
Laura Zuccaro ◽  
Kannan Balasubramanian
Keyword(s):  
Methylene Blue ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Binding Kinetics ◽  
Monolayer Graphene ◽  
Kinetics Of

Near-Infrared Surface Plasmon Resonance Measurements of Ultrathin Films. 1. Angle Shift and SPR Imaging Experiments

1999 ◽  
Vol 71 (18) ◽  
pp. 3928-3934 ◽  
Author(s):  
Bryce P. Nelson ◽  
Anthony G. Frutos ◽  
Jennifer M. Brockman ◽  
Robert M. Corn
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Ultrathin Films ◽  
Near Infrared ◽  
Spr Imaging ◽  
Angle Shift

scholarly journals Kajian Pengaruh Penambahan Nanopartikel Perak (AgNPs) Terhadap Respon Instrumen Sensing Berbasis Surface Plasmon Resonance (SPR)

2016 ◽  
Vol 3 (01) ◽  
pp. 47
Author(s):  
Tyas Arifani ◽  
Kamsul Abraha
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Reflectance Spectrum ◽  
Incident Angle ◽  
Improve Performance ◽  
Know How ◽  
Additional Layer ◽  
Angle Shift ◽  
Instrument Configuration

<span>Theoretical studies have been done related to the phenomenon of surface plasmon resonance <span>(SPR) on the system with addition of silver nanoparticles (AgNPs) that was modeled as a <span>sensing instrument. Model is built with AgNPs placed as an additional layer over the <span>conventional SPR system. Quantitative analysis on the model will provide a response in the <span>form of reflectance spectrum as a function of incident angle that showed SPR angle (<span> <span><em>SPR </em><span>) <span>point and the attenuation. To know how the AgNPs in various sizes affect the resonance <span>coupling, it will be calculated the dispersion relation curves obtained as the solution of <span>M<span>axwell’s equations. Coupling between surface plasmon wave and evanescent wave will <span>provide the resonance angle on the intersection of the two curves. Computational analysis of <span>ATR method, demonstrate how the addition of AgNPs in sensing instrument configuration will <span>improve performance of such instruments, visualized by SPR angle shift.</span></span></span></span></span></span></span></span></span></span><br /></span></span></span></span></span>

scholarly journals Uji Kemurnian DNA Melon (Cucumis melo L.) Kultivar “Gama Melon Basket” Menggunakan Surface Plasmon Resonance (SPR) Berbasis Nanopartikel Perak

2015 ◽  
Vol 5 (01) ◽  
pp. 16
Author(s):  
Thoyibi T ◽  
Muhammad Arifin ◽  
Kamsul Abraha
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Resonance Condition ◽  
Incident Angle ◽  
Dna Sensor ◽  
Purity Testing ◽  
Before And After ◽  
Dna Purity ◽  
Angle Shift

DNA level of purity has been tested by observing the phenomenon of surface plasmon resonance (SPR) in silver film + silver (Ag) nanoparticles system as DNA sensor using Kretschmann configuration. Surface plasmon resonance (SPR) phenomenon observed in the resonance condition of reflectance spectrum vary with incident angle of laser, beamed toward prism. System is built as a model for DNA purity test instrument that give higher accuracy. DNA purity testing was conducted by placing DNA layer with various ratio on prism in order to get the angle shift value in each sample as a result. Purity level of DNA indicates the DNA quality based on the ratio between the amount of pure DNA compared to the amount of impurity materials (protein). After the deposition of DNA in ratio 1,774, 1,838 and 1,916 SPR angle shifted ,  and  respectively. Characteristic differences of DNA with different purity (ratio) are shown by reflectance value that is getting higher at a smaller ratio, indicates that in the higher DNA ratio the angle shift is getting smaller. SPR angle shift which is occurred before and after DNA deposition shows the sensitivity of SPR as DNA sensor.

Influence of the Metal Film Thickness on the Sensitivity of Surface Plasmon Resonance Biosensors

2005 ◽  
Vol 59 (5) ◽  
pp. 661-667 ◽  
Author(s):  
Sanong Ekgasit ◽  
Chuchaat Thammacharoen ◽  
Fang Yu ◽  
Wolfgang Knoll
Keyword(s):  
Surface Plasmon Resonance ◽  
Film Thickness ◽  
Surface Plasmon ◽  
Metal Film ◽  
Gold Film ◽  
Metal Films ◽  
Thickness Variation ◽  
Reflectance Change ◽  
Angle Shift ◽  
Resonance Angle

The influence of the metal film thickness (i.e., the chromium adhesion promoting film and the gold film) on the sensitivity of surface plasmon resonance (SPR) signals (i.e., resonance angle shift and reflectance change) towards the thickness variation of the nonabsorbing dielectric film is investigated. The sensitivity of reflectance change decreases when a thick chromium film or a thin gold film is employed. Its linear range becomes narrower as the thickness of the metal films increases. The sensitivity and linear range of the resonance angle shift are not affected by the thickness variation of the metal films. The phenomena were theoretically explained based on the attenuated total reflection (ATR) generated evanescent field at the prism/metal interface and the SPR-generated evanescent field at the metal/dielectric interface.

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