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Dual Droplet Functionality: Phototaxis and Photopolymerization

Journal Article


Abstract


  • The use of phototaxis to move droplets in liquids offers

    the opportunity to emulate natural processes such as the controlled

    transport of materials in fluidic environments and to undertake

    chemistry at specific locations. We have developed a photoactive

    organic droplet, whose movement in aqueous solution is driven by a

    photoinitiator, as a result of a light-induced reaction within the droplet

    generating a Marangoni flow. The photoinitiator not only drives the

    droplet motion but can also be used to initiate polymerization following

    transfer of the droplet to a specific location and its merging with a

    monomer-containing droplet. The same light is used to control the

    transport of the droplet and the polymerization. The efficacy of this droplet transport and reactor system has been demonstrated

    by the site-specific underwater polymerization of N-isopropylacrylamide to repair a leaking vessel and the adhesion of two

    materials together.

Publication Date


  • 2019

Citation


  • Zarghami, S., Xiao, Y., Wagner, P., Florea, L., Diamond, D., Officer, D. L. & Wagner, K. (2019). Dual Droplet Functionality: Phototaxis and Photopolymerization. ACS Applied Materials & Interfaces, 11 (34), 31484-31489.

Scopus Eid


  • 2-s2.0-85071714816

Number Of Pages


  • 5

Start Page


  • 31484

End Page


  • 31489

Volume


  • 11

Issue


  • 34

Place Of Publication


  • United States

Abstract


  • The use of phototaxis to move droplets in liquids offers

    the opportunity to emulate natural processes such as the controlled

    transport of materials in fluidic environments and to undertake

    chemistry at specific locations. We have developed a photoactive

    organic droplet, whose movement in aqueous solution is driven by a

    photoinitiator, as a result of a light-induced reaction within the droplet

    generating a Marangoni flow. The photoinitiator not only drives the

    droplet motion but can also be used to initiate polymerization following

    transfer of the droplet to a specific location and its merging with a

    monomer-containing droplet. The same light is used to control the

    transport of the droplet and the polymerization. The efficacy of this droplet transport and reactor system has been demonstrated

    by the site-specific underwater polymerization of N-isopropylacrylamide to repair a leaking vessel and the adhesion of two

    materials together.

Publication Date


  • 2019

Citation


  • Zarghami, S., Xiao, Y., Wagner, P., Florea, L., Diamond, D., Officer, D. L. & Wagner, K. (2019). Dual Droplet Functionality: Phototaxis and Photopolymerization. ACS Applied Materials & Interfaces, 11 (34), 31484-31489.

Scopus Eid


  • 2-s2.0-85071714816

Number Of Pages


  • 5

Start Page


  • 31484

End Page


  • 31489

Volume


  • 11

Issue


  • 34

Place Of Publication


  • United States