Detection of Particulate Matters with a Field-Portable Microscope Using Side-Illuminated Total Internal Reflection.

ABSTRACT: Field-portable observation and analysis of particulate matter (PM) is required to enhance healthy lives. Various types of the PM measurement methods are in use; however, each of these methods has significant limitations in that real time measurement is impossible, the detection system is bulky, or the measurement accuracy is insufficient. In this work, we introduce an optical method to perform a fast and accurate PM analysis with a higher-contrast microscopic image enabled by a side-illuminated total internal reflection (TIR) technique to be implemented in a compact device. The superiority of the proposed method was quantitatively demonstrated by comparing the signal-to-noise ratio of the proposed side-illuminated TIR method with a traditional halogen lamp-based transmission microscope. Wi

SUBMITTER: Yang H 

PROVIDER: S-EPMC8070112 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature