ArticleMicromachines2021
Controlling Capillary Flow Rate on Lateral Flow Test Substrates by Tape.
Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Triggered "Capture-and-Release" Enables a High-Affinity Rebinding Strategy for Sensitivity Enhancement in Lateral Flow Assays.ACS sensors · 2025Article
- Lateral flow assay sensitivity and signal enhancement via laser µ-machined constrains in nitrocellulose membrane.Scientific reports · 2024Article
- Imbibition of Newtonian Fluids in Paper-like Materials with the Infinitesimal Control Volume Method.Micromachines · 2021Article
- High-Performance Passive Plasma Separation on OSTE Pillar Forest.Biosensors · 2021Article
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Authors and funding
4 authors.
Funding
Abstract
Controlling capillary flow rate of sample liquid is of high interest for lateral flow tests, since the flow rate can affect the dissolution and mixing of the immunoreagents and the efficiency of immunoreactions. Here we develop a facile method to adjust the capillary flow rate on lateral flow test substrates by using tape to cover the surface of substrates. We test this method on the traditional lateral flow test substrate-nitrocellulose and a novel lateral flow test substrate-synthetic paper, which is a porous media made by interlocked off-stoichiometry thiol-ene (OSTE) micropillars. We found that after the surface was covered by tape, the average flow rate decreased to 61% of the original flow rate on nitrocellulose, while the average flow rate increased to at least 320% of the original flow rate on synthetic paper. More interesting, besides the increase of flow rate, the volume capacity of synthetic paper also increases after covered by tape. Furthermore, we investigated the influence of length and position of tape on the capillary flow rate for nitrocellulose. A longer tape will lead to a smaller flow rate. The influence of tape of same length on the flow rate is bigger when the tape is placed closer to the loading pad. These results can help in the flow rate control on lateral flow test substrates, and potentially improve the performance of lateral flow tests.
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