High Sensitive and Selectivity Plasmonic Systems for Ultrafine Particulate Matter (PM) 0.1 and 0.3 Detection
Overview
Most viruses including COVID-19 have sizes ranging from 0.1 to 0.3 um but particulate matter 0.1 and 0.3 are difficult to be detected by current PM sensors. We have developed the plasmon-mediated light scattering effect to improve the performance of PM sensors and enhance their efficiency by 10 times, leading to the detection limit lower than 1 μg/m3 for 0.1 and 0.3 particulates.
Commercialisation opportunities
Exclusive licensing
Problem addressed
Improve the sensitivity of current PM sensor down to 0.1 and 0.3, which are the sizes of most of the viruses.
Innovation
- The plasmon-mediated light scattering effect has been developed to improve the performance of PM sensors.
- Metallic nanostructures at low cost have been prepared and integrated into conventional PM sensors to enhance their efficiency by 10 times.
Key impact
- Capable of detecting small PM sizes down to 0.1.
- Possible integration to current light scattering based PM sensing technology.
- Real time detection (less than 5 min)
- Portable and cost-effective
Application
- Detect the air quality at different PM levels.
- Both indoor and outdoor sensing.
Patent
- 1 US provisional patent application
The Chinese University of Hong Kong (CUHK)
Founded in 1963, The Chinese University of Hong Kong (CUHK) is a forward-looking comprehensive research university with a global vision and a mission to combine tradition with modernity, and to bring together China and the West. CUHK teachers and students hail from all around the world. Four Nobel laureates are associated with the university, and it is the only tertiary institution in Hong Kong with recipients of the Nobel Prize, Turing Award, Fields Medal and Veblen Prize sitting as faculty in residence. CUHK graduates are connected worldwide through an extensive alumni network. CUHK undertakes a wide range of research programmes in many subject areas, and strives to provide scope for all academic staff to undertake consultancy and collaborative projects with industry.
Enquiry
