期刊
MICROMACHINES
卷 14, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/mi14091722
关键词
particle counting; microfluidics; sensitivity; throughput
This paper provides a taxonomical elucidation of microfluidic chip-based particle counters, classifying them into optical-based counters, electrical-based particle counters, and other counters. It describes the working principles of each type and methods to enhance sensitivity and throughput, and also analyzes future trends related to each type of counter.
Particle counting serves as a pivotal constituent in diverse analytical domains, encompassing a broad spectrum of entities, ranging from blood cells and bacteria to viruses, droplets, bubbles, wear debris, and magnetic beads. Recent epochs have witnessed remarkable progressions in microfluidic chip technology, culminating in the proliferation and maturation of microfluidic chip-based particle counting methodologies. This paper undertakes a taxonomical elucidation of microfluidic chip-based particle counters based on the physical parameters they detect. These particle counters are classified into three categories: optical-based counters, electrical-based particle counters, and other counters. Within each category, subcategories are established to consider structural differences. Each type of counter is described not only in terms of its working principle but also the methods employed to enhance sensitivity and throughput. Additionally, an analysis of future trends related to each counter type is provided.
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