Portable device for dual detection of fluorescence and absorbance for biosensing or chemical sensing applications
Kittirat Phooplub,
Sirirat Ouiganon,
Panote Thavarungkul,
Proespichaya Kanatharana,
Chittanon Buranachai
Affiliations
Kittirat Phooplub
Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, Thailand; Center of Excellence for Trace Analysis and Biosensor, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
Sirirat Ouiganon
Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, Thailand; Center of Excellence for Trace Analysis and Biosensor, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
Panote Thavarungkul
Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, Thailand; Center of Excellence for Trace Analysis and Biosensor, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
Proespichaya Kanatharana
Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Center of Excellence for Trace Analysis and Biosensor, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
Chittanon Buranachai
Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, Thailand; Center of Excellence for Trace Analysis and Biosensor, Faculty of Science, Prince of Songkla University, Songkhla, Thailand; Corresponding author at: Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand.
Early detection is key to prevent health problems and could be performed by biosensors and chemical sensors. However, a lot of them still need bulky benchtop equipment. This work presents a portable device for measuring fluorescence and light absorption that can be used with optical biosensors or chemical sensors. It uses a small laser diode as a light source and three filter-mounted photodiodes as detectors, all of which are inexpensive, customizable and widely available commercially. The results from our device show good correlation with that from commercial instruments. Therefore, it could be beneficial for early or on-site detection.
