@inproceedings{min2023smartphone,

title = {Smartphone-based pathogen detection using concurrent monitoring of resonant frequency and optical fluorescence},

author = {Hyun Jung Min and Hansel A Mina and Amanda J Deering and Bartek Rajwa and Sungho Shin and Iyll-Joon Doh and J Paul Robinson and Euiwon Bae},

url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12545/125450A/Smartphone-based-pathogen-detection-using-concurrent-monitoring-of-resonant-frequency/10.1117/12.2665235.short?SSO=1},

doi = {https://doi.org/10.1117/12.2665235},

year  = {2023},

date = {2023-06-13},

urldate = {2023-06-13},

booktitle = {Sensing for Agriculture and Food Quality and Safety XV},

volume = {12545},

pages = {81--87},

organization = {SPIE},

abstract = {Recently, the use of a Quartz Crystal Microbalance (QCM) as a biosensor for detecting foodborne pathogens by observing changes in resonant frequency has gained popularity. However, conventional detection methods are time-consuming and require expensive equipment and trained personnel. The current trend is toward detection approaches that are quick, portable, and easy to use. In order to address this need, a dual-modality QCM system combining a smartphone, an in-situ fluorescence imaging subsystem, and a flow injection component has been proposed. This system enables a smartphone to receive real-time frequency data via Bluetooth, while a camera detects the presence of bacteria on the quartz crystal surface using a fluorescence-tagged antibody. The fluorescence imaging subsystem utilizes a camera to capture the bacteria fluorescence signal, while the flow injection subsystem employs a mini peristaltic pump and controller to introduce biochemical solutions, antibodies, and bacteria. All components are contained in a 3D cartridge that is portable. FITC images were captured with 5 MHz quartz crystals when the prototype system was tested. The developed QCM biosensor has t},

keywords = {Fluorescence, Imaging, openQCM, QCM, Quartz Crystal Microbalance},

pubstate = {published},

tppubtype = {inproceedings}

}