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Issue 5, 2016
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Microfluidic devices with templated regular macroporous structures for HIV viral capture

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Abstract

There is a need to develop inexpensive, portable and easy-to-use devices for viral sample processing for resource-limited settings. Here we offer a solution to efficient virus capture by incorporating macroporous materials with regular structures into microfluidic devices for affinity chromatography. Two-dimensional simulations were first conducted to investigate the effects of two structures, a nanopost array and a spherical pore network, on nanoparticle capture. Then, the two structures were created in polymers by templating anodic aluminum oxide films and 3D close-packed silica particles, respectively. When the microdevices containing functionalized porous materials were tested for human immunodeficiency virus (HIV) isolation, capture efficiencies of 80–99% were achieved under a continuous flow. Comparatively, functionalized flatbed microchannels captured around 10% of HIV particles. As the characteristic dimensions of the nanostructures are tunable, such devices can be adapted for the capture of different submicron bioparticles. The high capture efficiency and easy-to-operate nature suit the needs of resource-limited settings and may find applications in point-of-care diagnostics.

Graphical abstract: Microfluidic devices with templated regular macroporous structures for HIV viral capture

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Publication details

The article was received on 04 Nov 2015, accepted on 18 Jan 2016 and first published on 01 Feb 2016


Article type: Paper
DOI: 10.1039/C5AN02282G
Citation: Analyst, 2016,141, 1669-1677
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    Microfluidic devices with templated regular macroporous structures for HIV viral capture

    K. Surawathanawises, K. Kundrod and X. Cheng, Analyst, 2016, 141, 1669
    DOI: 10.1039/C5AN02282G

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