Photoelectrical device for concentration detection, method for concentration detection thereof and method for testing an antibiotic susceptibility on bacteria
US11143585B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photoelectrical device for detection of bacterial cell density includes a substrate, a driving electrode layer, an AC power source and a photoelectric conversion layer. The driving electrode layer is disposed on the substrate and includes a central electrode and a peripheral electrode pattern surrounding the central electrode. A fluid sample is disposed on the driving electrode layer. The AC power source is electrically connected to the driving electrode layer, and used to produce a non-uniform alternating electric field in the fluid sample on the driving electrode layer for driving the target bioparticles to gather up on the central electrode to form a particle cluster. The photoelectric conversion layer is used for receiving a light detecting beam after passing through the particle cluster and outputting an electric current based on the optical density of light detecting beam. The electric current changes as a concentration of the target bioparticles changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.