From whispering gallery mode resonators to biochemical sensors

M Loyez, M Adolphson, J Liao, L Yang - ACS sensors, 2023 - ACS Publications
Optical biosensors are frontrunners for the rapid and real-time detection of analytes,
particularly for low concentrations. Among them, whispering gallery mode (WGM) resonators …

Applications of AlGaN/GaN high electron mobility transistor-based sensors in water quality monitoring

H Guo, X Jia, Y Dong, J Ye, D Chen… - Semiconductor …, 2020 - iopscience.iop.org
AlGaN/GaN high electron mobility transistors (HEMTs) have demonstrated their
extraordinary potential in developing solid-state microsensors for detecting gases, metal …

AlGaN/GaN heterostructure pH sensor with multi-sensing segments

Y Dong, D Son, Q Dai, JH Lee, CH Won, JG Kim… - Sensors and Actuators B …, 2018 - Elsevier
Abstract pH sensor is very important in various fields, and has triggered many types of
devices based on different materials and mechanisms. How to improve the performances of …

High-resolution AlGaN/GaN HEMT-based electrochemical sensor for biomedical applications

N Sharma, S Mishra, K Singh… - … on Electron Devices, 2019 - ieeexplore.ieee.org
We have investigated the characteristics of pH and salinity sensor derived from the gated
AlGaN/GaN highelectron mobility transistor (HEMT) structures in phosphate buffer saline …

Analytical modeling and simulation of AlGaN/GaN MOS-HEMT for high sensitive pH sensor

P Pal, Y Pratap, M Gupta, S Kabra - IEEE Sensors Journal, 2021 - ieeexplore.ieee.org
This paper presents an analytical model of AlGaN/GaN MOS-HEMT based pH sensor for the
first time to determine pH of different electrolyte solutions. Gouy-chapman stern model has …

A flavonol-labelled cellulose fluorescent probe combined with composite fluorescent film imaging and smartphone technology for the detection of Fe3+

X Wu, X Yuan, E Liang, L Liu, Y Lin, L Xie… - International Journal of …, 2024 - Elsevier
Fe 3+ is one of the most widely distributed and abundant elements on earth. Realizing
efficient and real-time monitoring of Fe 3+ is of great significance for the natural environment …

A new analytical model for the response of AlGaN/GaN HEMT-based pH sensors

KT Upadhyay, MK Chattopadhyay - Journal of Computational Electronics, 2021 - Springer
Abstract pH sensors are monitoring devices with wide applications in biology, chemistry,
medicine, and agriculture. To enhance their sensitivity and long-term stability, efficient study …

Bio sensing with InGaN-heterostructures using a compact spectrometer approach

MF Schneidereit, F Scholz, F Huber… - Sensors and Actuators B …, 2020 - Elsevier
Here, we report on an integrated sensor system based on InGaN heterostructures for (bio)
chemical sensing. The system is compact in size and fits into a relatively small volume …

Label-Free Biosensors Based on III-Nitride Semiconductors

V Cimalla - Label-Free Biosensing: Advanced Materials, Devices …, 2018 - Springer
Chip-based biosensor devices received an increased attention for medical and
pharmaceutical screening as well as for environmental monitoring. Most semiconductor …

TiO2 functionalized AlGaN/GaN HEMT gas sensor based on capacitance change strategy under room temperature

L Liu, H Zhang, R Xu, W Zhang, X Xia, R Hua… - Materials Research …, 2023 - Elsevier
A fast response and high-selectivity TiO 2@ Polymine (PEI) modified AlGaN/GaN high
electron mobility transistor (HEMT) gas sensor is proposed and fabricated. It can be used to …