Smartphone spectrometer for colorimetric biosensing

2016/01/01 by Yi Wang, Xiaohu Liu, Peng Chen +5 · 24 citations
Engineering · Biochemistry, Genetics and Molecular Biology · #Biosensors and Analytical Detection #Advanced biosensing and bioanalysis techniques #Advanced Biosensing Techniques and Applications

paper · doi:10.1039/c5an02508g

Abstract

We report on a smartphone spectrometer for colorimetric biosensing applications. The spectrometer relies on a sample cell with an integrated grating substrate, and the smartphone's built-in light-emitting diode flash and camera. The feasibility of the smartphone spectrometer is demonstrated for detection of glucose and human cardiac troponin I, the latter in conjunction with peptide-functionalized gold nanoparticles.

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