Wireless Microfluidic Sensor for Metal Ion Detection in Water.
Wireless Microfluidic Sensor for Metal Ion Detection in Water.
复制标题
用于水中金属离子检测的无线微流体传感器。
DOI：
10.1021/acsomega.1c00941
复制
发表时间：
2021-04-06
期刊：
影响因子：
4.1
通讯作者：
Li Y
中科院分区：
文献类型：
--
作者：
Liang Y;Ma M;Zhang F;Liu F;Lu T;Liu Z;Li Y
本文提出了一种基于低温共烧陶瓷（LTCC）技术的无线微流控传感器，用于实时检测水中的金属离子。该无线传感器由平面螺旋电感和平行板电容（LC）谐振天线组成，该天线与电容板之间的LTCC衬底中的微通道集成。用该传感器对浓度为0 ~ 100 mM的Pb(NO3)2、Cd(NO3)2、Mg(NO3)2、Ca(NO3)2、NaNO3和KNO3水溶液进行了测试。通过无线微流控传感器反射系数（S11）的振幅和谐振频率（fr）可以检测水中金属离子及其浓度。金属离子种类可以从传感器的无线响应行为中区分出来。该传感器对所选金属离子溶液的检测限可低至5 μM。该传感器的归一化灵敏度为0.47%，高于已有的基于微波谐振器的液体微流控传感器。本研究的无线微流控传感器有望实现工业废水中重金属离子污染物的快速便捷检测。
In the present work, a wireless microfluidic sensor based on low-temperature cofired ceramic (LTCC) technology for real-time detection of metal ions in water is proposed. The wireless sensor is composed of a planar spiral inductor and parallel plate capacitor (LC) resonant antenna, which integrates with the microchannel in the LTCC substrate between the capacitor plates. Aqueous solutions of Pb(NO3)2, Cd(NO3)2, Mg(NO3)2, Ca(NO3)2, NaNO3, and KNO3 with concentrations of 0–100 mM were tested with the sensors. The metal ion and its concentration in water can be tested by the amplitude of the reflection coefficient (S11) and the resonance frequency (fr) of the wireless microfluidic sensor. The metal ion species can be distinguished from the wireless response behavior of the sensor. The detection limit of the sensor for the selected metal ionic solutions could reach as low as 5 μM. The normalized sensitivity of the sensor is 0.47%, which is higher than that of the reported liquid microfluidic sensors based on microwave resonators. The wireless microfluidic sensor of this study is promising for rapid and convenient detection of heavy metal ion pollutants in the industrial wastewater.
登录
查看更多内容
DOI：
10.1088/0022-3735/21/6/003
发表时间：
1988-06-01
期刊：
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS
影响因子：
--
作者：
HUANG, SM;GREEN, RG;BECK, MS
通讯作者：
BECK, MS
影响因子：
6.1
作者：
Lafleur, Josiane P.;Senkbeil, Silja;Kutter, Jorg P.
通讯作者：
Kutter, Jorg P.
影响因子：
8.4
作者：
Golonka, LJ;Roguszczak, H;Stadnik, D
通讯作者：
Stadnik, D
影响因子：
4.3
作者：
Ebrahimi, Amir;Withayachumnankul, Withawat;Abbott, Derek
通讯作者：
Abbott, Derek
影响因子：
8.9
作者：
Gao, Wei;Nyein, Hnin Y. Y.;Javey, Ali
通讯作者：
Javey, Ali