College of Electronic Engineering (College of Artificial Intelligence), South China Agricultural University, Guangzhou 510642, China.
National Research Center of Intelligent Equipment for Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
Biosensors (Basel). 2022 Nov 14;12(11):1017. doi: 10.3390/bios12111017.
This paper reported a real-time detection strategy for Hg inspired by the visible spectrophotometer that used a smartphone as a low-cost micro-spectrometer. In combination with the smartphone's camera and optical accessories, the phone's built-in software can process the received light band image and then read out the spectral data in real time. The sensor was also used to detect gold nanoparticles with an LOD of 0.14 μM, which are widely used in colorimetric biosensors. Ultimately, a gold nanoparticles-glutathione (AuNPs-GSH) conjugate was used as a probe to detect Hg in water with an LOD of 1.2 nM and was applied successfully to natural mineral water, pure water, tap water, and river water samples.
本文报道了一种基于可见分光光度计的汞实时检测策略，该策略使用智能手机作为低成本的微型分光计。结合智能手机的摄像头和光学附件，手机内置软件可以处理接收到的光带图像，然后实时读取光谱数据。该传感器还用于检测金纳米粒子，其检测限为 0.14 μM，金纳米粒子被广泛应用于比色生物传感器中。最终，金纳米粒子-谷胱甘肽（AuNPs-GSH）缀合物被用作探针，用于检测水中的汞，其检测限为 1.2 nM，并成功应用于天然矿泉水、纯净水、自来水和河水样品。
