Tapered MMF fiber/AuNPs/MoS2 based sensor for p-cresol detection
On demand starting 10 October 2021
In this paper, localized surface plasmon resonance (LSPR) based tapered multimode optical fiber (TMMF) sensor is developed for the detection of different concentrations of p-cresol solutions. Gold nanoparticles (AuNPs) and molybdenum disulfide nanoparticles (MoS2-NPs) were immobilized on TMMF probes, respectively. The performance of the designed probe was explored by detecting the response of different concentrations of p-cresol solutions. The combination of AuNPs and MoS2-NPs enhances the sensitivity and anti-interference ability of the sensing probe. In this work, the enzymatic reaction of p-cresol solution and tyrosinase changes the RI in the vicinity of the probe and records the corresponding spectrum. The probe will also be evaluated in terms of linear range, limit of detection (LoD), reproducibility, reproducibility, stability, selectivity, etc.
Liaocheng Univ. (China)
Santosh Kumar received the Ph.D. degree from IIT (ISM) Dhanbad, Dhanbad, India. He is currently an Associate Professor with the School of Physics Science and Information Technology, Liaocheng University, Liaocheng, China. Till now, he has guided seven M.Tech. dissertations and six Ph.D. candidates. He has published more than 140 research articles in national and international SCI journals and conferences and his h-index is 18. He has presented many articles at conferences held in Belgium, China and USA. He has reviewed more than 550 SCI journals of IEEE, Elsevier, Springer, OSA, SPIE, and Nature. His current research interests include optical fiber sensors, nano and bio-photonics, terahertz sensing and spectroscopy, and waveguide and interferometer. He is a Life Fellow Member of the Optical Society of India (OSI) and a Senior Member of IEEE, OSA and SPIE.