Printed microfluidic sweat sensing platform for cortisol and glucose detection

Lab on a Chip ◽  
2022 ◽  
Author(s):  
Aditi R. Naik ◽  
Yiliang Zhou ◽  
Anita A. Dey ◽  
D. Leonardo González Arellano ◽  
Uzodinma Okoroanyanwu ◽  
...  

An inexpensive microfluidic sweat sensor platform for single-use and continuous biomarker measurements integrated with a synthetic skin for characterization at various sweat rates.

2018 ◽  
Vol 915 ◽  
pp. 207-212
Author(s):  
Mustafa Umut Mutlu ◽  
Osman Akin ◽  
Mustafa M. Demir ◽  
Ümit Hakan Yildiz

Conductive polymer-electrospun polymer nanofiber network was combined to host iron oxide nanoparticles providing micrometer thick sensing interface. The sensor has fabricated as free-standing fabric exhibiting 10 to 100 KOhm base resistivity upon bias applied. The moving object has been sensed through the electrostatic interactions between fibers and object. The sensing range has been found to be 1-5 cm above the surface of fabric. By the controlled combination of conductive polymers electrospun polymer nanofibers effective device miniaturization has been provided without loss of performance. The noncontact motion sensor platform has unique flexibility and light weight holding a potential for wearable sensor technology.


The Analyst ◽  
2018 ◽  
Vol 143 (11) ◽  
pp. 2546-2554 ◽  
Author(s):  
X. Luo ◽  
M. Huang ◽  
D. He ◽  
M. Wang ◽  
Y. Zhang ◽  
...  

Porous binary metal oxide NiCo2O4 NWA/CC was prepared and utilized as a 3D binder-free open electrode for enzyme-free sensing with high performance.


2012 ◽  
Vol 2012 (1) ◽  
pp. 001191-001196
Author(s):  
Anurag Gupta ◽  
Bruce C. Kim ◽  
Mitchell Spryn ◽  
Eugene Edwards ◽  
Christina Brantley ◽  
...  

Potential of zinc oxide nanowires for developing a sensitive opto-electronic platform was demonstrated. Zinc oxide nanowires synthesized on insulating sapphire substrates were functionalized with an optically active receptor, 1-pyrenebutyric acid. Appropriate characterization studies including XPS and FT-IR ATR are reported. I-V curves of pristine and receptor-modified nanowires were utilized to highlight the potential of zinc oxide nano-heterostructures for developing a sensitive opto-electronic platform for p-nitrophenol sensing. Packaging issues for achieving an efficient and cost-effective sensor platform have also been outlined.


2016 ◽  
Vol 672 ◽  
pp. 600-608 ◽  
Author(s):  
Y.J. Zhai ◽  
J.H. Li ◽  
X.Y. Chu ◽  
M.Z. Xu ◽  
F.J. Jin ◽  
...  

2019 ◽  
Vol 1 (11) ◽  
pp. 4313-4320 ◽  
Author(s):  
Qingzhi Han ◽  
Hanyu Wang ◽  
Yanting Qi ◽  
Dan Wu ◽  
Qin Wei

SPR enhanced self-powered PEC sensing platform for glucose detection.


2021 ◽  
Vol 9 ◽  
Author(s):  
Shuai Yan ◽  
Yinzi Yue ◽  
Li Zeng ◽  
Lianlin Su ◽  
Min Hao ◽  
...  

Antioxidation is very important in medicine and food. The current evaluation technologies often have many shortcomings. In this work, an improved electrochemical sensing platform for the evaluation of antioxidant activity has been proposed. A hydrogel was prepared based on graphene oxide, zinc ions, and chitosan. Zinc ions play the role of crosslinking agents in hydrogels. The structure of chitosan can be destroyed by injecting hydrogen peroxide into the hydrogel, and the free zinc ions can diffuse to the surface of the electrode to participate in the electrochemical reaction. This electrochemical sensor can evaluate the antioxidant activity by comparing the current difference of zinc reduction before and after adding the antioxidant. With the help of graphene oxide, this hydrogel can greatly enhance the sensing effect. We conducted tests on 10 real samples. This proposed electrochemical platform has been successfully applied for evaluating the antioxidant activity of Scutellaria baicalensis, and the results were compared to those obtained from the 2,2-diphenyl-1-picrylhydrazyl-based traditional analysis technique.


Nanoscale ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 10809-10815 ◽  
Author(s):  
Zhongwen Long ◽  
Yuzhang Liang ◽  
Lei Feng ◽  
Hui Zhang ◽  
Mingze Liu ◽  
...  

A low-cost, large scale plasmonic metasurface sensing platform shows enormous potential for highly sensitive and selective SERS-based glucose detection.


Lab on a Chip ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 1834-1842 ◽  
Author(s):  
Juliane R. Sempionatto ◽  
Tatsuo Nakagawa ◽  
Adriana Pavinatto ◽  
Samantha T. Mensah ◽  
Somayeh Imani ◽  
...  

We presented the first example of a fully integrated eyeglasses wireless multiplexed chemical sensing platform capable of simultaneous real-time monitoring of sweat electrolytes and metabolites.


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