Dual Droplet Functionality: Phototaxis and Photopolymerization
Citation:
Zarghami, S., Xiao, Y., Wagner, P., Florea, L., Diamond, D., Officer, D.L., Wagner, K. Dual Droplet Functionality: Phototaxis and Photopolymerization, ACS Applied Materials & Interfaces, 2019, 11, 34, 31484-31489Download Item:
AMI Manuscript TARA.pdf (Accepted for publication (author's copy) - Peer Reviewed) 1.778Mb
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 secondary, 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.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
SFI/12/RC/2289
Australian Research Council (ARC)
Discovery Project DP 150104532
Australian Research Council (ARC)
CE 140100012)
European Research Council (ERC)
802929 - ChemLife
Author's Homepage:
http://people.tcd.ie/florealDescription:
PUBLISHED
Author: Florea, Larisa
Publisher:
American Chemical SocietyType of material:
Journal ArticleSeries/Report no:
ACS Applied Materials & Interfaces;11;
34;
Availability:
Full text availableKeywords:
Photopolymerization, Phototaxis, Photoactive microdroplets, Chemical transport, Marangoni effectSubject (TCD):
Nanoscience & Materials , CHEMOTAXIS , DROPLETSDOI:
10.1021/acsami.9b08697Licences: