AI Article Synopsis
- An automated ELISA system using magnetic beads enhances sensitivity and reduces reaction time through a unique disk-based design.
- The system features a magnetic module that controls bead movement during the incubation and washing stages passively, requiring no external devices.
- This disk-based method automates the ELISA process, yielding results similar to traditional microtiter plates but completing the protocol in just 45 minutes with lower reagent usage.
Article Abstract
An automated, disk-based, enzyme-linked immunosorbent assay (ELISA) system is presented in this work. Magnetic beads were used as the antibody carriers to improve the assay sensitivity and shorten the reaction time. The magnetic module integrated on the system is capable of controlling the magnetic beads to either move in the incubation stage or immobilize at a specific location during washing stage. This controlling mechanism utilizes a passive controlling approach so that it can be performed through disk spinning without the need of active control from external devices. The movement of the magnetic beads was investigated and the optimal rotational speed was found to be related to the ratio of the processing time to the cycle time of the magnetic beads. Comparing to ELISA conducted on microtiter plates, similar test results could be achieved by the disk-based ELISA but the entire protocol can be finished automatically within 45 min with much less reagent consumption.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4222274 | PMC |
| http://dx.doi.org/10.1063/1.4896297 | DOI Listing |
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