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2016-06-28 Granick, Steve Schweizer, Kenneth S. Gruebele, Martin Hubler, Albert Tsang, Chi Hang Boyce 2016-11-10T18:27:31Z 2016-11-10T18:27:31Z 2018-11-11T10:15:32Z 2016-08 Using microscope as a discovery tool, we surveyed a range of soft material systems, including filamentous actin, liquid crystal droplet and block copolymer to study their dynamics under equilibrium and non-equilibrium conditions. By following the motion of filamentous actin under a fluorescence microscope, we directly observed a width-varying confinement tube in an entangled solution and its implication on the dynamics of polymers. We then considered the correlation between motions of different filamentous actin to study how the unique structure actin network led to such correlation. On the other hand, liquid crystal droplets under concentrated surfactant solution were observed to slowly solubilize into an aqueous phase. During this time, the oscillatory aggregation was tracked and we studied the mechanism of this self-oscillation. On a smaller scale, communication could be observed among individual droplets using polarized light microscopy. Lastly, we studied the photosensitivity of an azobenzene-funcationalized triblock copolymer with a customized microscope with blue and ultraviolet light illumination. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2018-08-01 The student, Chi Hang Boyce Tsang, accepted the attached license on 2016-06-27 at 10:15. The student, Chi Hang Boyce Tsang, submitted this Dissertation for approval on 2016-06-27 at 10:19. This Dissertation was approved for publication on 2016-06-28 at 11:50. DSpace SAF Submission Ingestion Package generated from Vireo submission #9707 on 2016-11-10 at 12:19:35 Made available in DSpace on 2016-11-10T18:27:31Z (GMT). No. of bitstreams: 3 TSANG-DISSERTATION-2016.pdf: 5996382 bytes, checksum: 3d1250e49fae68eb85f91246ef69b7f9 (MD5) LICENSE.txt: 4217 bytes, checksum: 8d270d504b01b8b8deee7c58e72713aa (MD5) PROQUEST_LICENSE.txt: 4563 bytes, checksum: 6963b05e4348bfa16c2a25f200130f3c (MD5) Previous issue date: 2016-06-28 Embargo set by: Seth Robbins for item 95325 Lift date: 2018-11-10T18:28:02Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 95325 on 2018-11-11T10:15:32Z. application/pdf http://hdl.handle.net/2142/92905 en Copyright 2016 Boyce Tsang Soft material microscopy image processing Soft matter in motion: from actin to active emulsions text text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.