Document Type
Article
Publication Date
2017
Publisher
Nature Publishing Group
Source Publication
Scientific Reports
Source ISSN
2045-2322
Abstract
We report a miniature, visible to near infrared G-Fresnel spectrometer that contains a complete spectrograph system, including the detection hardware and connects with a smartphone through a microUSB port for operational control. The smartphone spectrometer is able to achieve a resolution of ~5 nm in a wavelength range from 400 nm to 1000 nm. We further developed a diffuse reflectance spectroscopy system using the smartphone spectrometer and demonstrated the capability of hemoglobin measurement. Proof of concept studies of tissue phantoms yielded a mean error of 9.2% on hemoglobin concentration measurement, comparable to that obtained with a commercial benchtop spectrometer. The smartphone G-Fresnel spectrometer and the diffuse reflectance spectroscopy system can potentially enable new point-of-care opportunities, such as cancer screening.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Edwards, Perry; Zhang, Chenji; Zhang, Baigang; Hong, Xiangqian; Nagarajan, Vivek K.; Yu, Bing; and Liu, Zhiwen, "Smartphone Based Optical Spectrometer for Diffusive Reflectance Spectroscopic Measurement of Hemoglobin" (2017). Biomedical Engineering Faculty Research and Publications. 641.
https://epublications.marquette.edu/bioengin_fac/641
Comments
Published version. Scientific Reports, Vol. 7, No. 12224 (2017). DOI. © 2017 The Authors published by Nature Publishing Group. Used with permission.