Bismuth telluride, graphene, and silver based surface plasmon resonance biosensor for dental application

被引：11

作者：

Alam, Mohammad Khursheed ^{[1
,2
,3
]}

Zaman, Mahmud Uz ^{[4
]}

Alqhtani, Nasser Raqe ^{[4
]}

Robaian, Ali ^{[5
]}

Alqahtani, Abdullah Saad ^{[6
]}

Alrahlah, Ali ^{[7
]}

机构：

[1] Jouf Univ, Coll Dent, Prevent Dent Dept, Orthodont Div, Sakaka 72345, Saudi Arabia

[2] Saveetha Dent Coll & Hosp, Saveetha Inst Med & Tech Sci, Dept Dent Res Cell, Chennai, India

[3] Daffodil Int Univ, Fac Allied Hlth Sci, Dept Publ Hlth, Dhaka, Bangladesh

[4] Prince Sattam Bin Abdulaziz Univ, Coll Dent, Dept Oral & Maxillofacial Surg & Diagnost Sci, Al Kharj 11942, Saudi Arabia

[5] Prince Sattam Bin Abdulaziz Univ, Coll Dent, Conservat Dent Sci Dept, Al Kharj 11942, Saudi Arabia

[6] Prince Sattam Bin Abdulaziz Univ, Coll Dent, Dept Prevent Dent Sci, Al Kharj 11942, Saudi Arabia

[7] King Saud Univ, Coll Dent, Restorat Dent Sci Dept, Engineer Abdullah Bugshan Res Chair Dent & Oral Re, Riyadh 11545, Saudi Arabia

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2023年 / 55卷 / 05期

关键词：

Sensitivity improvement; Dental application; SPR; Refractive index (RI) sensor; Chemical; and biological applications; SENSITIVITY-ENHANCEMENT; HYBRID NANOSTRUCTURES; SPR BIOSENSOR; DESIGN; SENSOR;

D O I：

10.1007/s11082-023-04703-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The work presents a surface plasmon resonance biosensor employing bismuth telluride (Bi2Te3) and graphene layer overlaid on the Ag metal layer-based biosensor to detect disease in the teeth. The Ag layer, Bi2Te3, and graphene are assumed to have thicknesses of 35 nm, 1 nm, and 0. 5 nm, respectively. Using single-layer Bi2Te3 and single-layer graphene, the highest sensitivity of the sensor for enamel, dentin, and cementum is 79.310 deg/RIU, 118.88 deg/RIU, and 169.87 deg/RIU obtained, respectively. The other performance parameters are full width at half maximum, detection accuracy, and quality factor obtained as 6.723 deg, 0.11 deg(-1), and 18.74 RIU-1. Graphene increases the biocompatibility of the analyte with the sensing layer. Consideration has been given to the aqueous solution as a sensing medium. The proposed sensor has great potential in the medical and chemical fields.

引用

页数：15

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