Formation, structure, and reproducibility of cerato-ulmin hydrophobin-coated bubbles

Gorman, Andrew J.

Title:

Formation, structure, and reproducibility of cerato-ulmin hydrophobin-coated bubbles

dc.contributor.advisor	Russo, Paul S.
dc.contributor.author	Gorman, Andrew J.
dc.contributor.committeeMember	Jacob, Karl I.
dc.contributor.committeeMember	Curtis, Jennifer
dc.contributor.committeeMember	Shofner, Meisha
dc.contributor.committeeMember	Garmestani, Hamid
dc.contributor.department	Materials Science and Engineering
dc.date.accessioned	2020-01-14T14:48:20Z
dc.date.available	2020-01-14T14:48:20Z
dc.date.created	2019-12
dc.date.issued	2019-11-12
dc.date.submitted	December 2019
dc.date.updated	2020-01-14T14:48:20Z
dc.description.abstract	The physical characteristics of both the submicron and micron bubble films were investigated. For the submicron bubbles, small-angle x-ray scattering (SAXS) and small-angle neutron scattering (SANS) show the bubbles are cylindrical with a ~70 nm cross-sectional diameter and film thickness of 15 nm, the equivalent of 5 CU proteins. Atomic force microscopy (AFM) of collapsed microbubbles has the same film thickness suggesting that film thickness is independent of CU bubble size. To isolate singular bubble sizes during agitation, a new experimental apparatus was designed and built to agitate the CU solutions in a controlled, reproducible method. The apparatus houses a horizontal microscope for imaging CU bubbles directly after agitation and observing their motion as they rise through the solution. Results show a positive correlation with agitation frequency and bubble size, with a steady number density for all sizes up to the maximum size at that frequency value.
dc.description.degree	Ph.D.
dc.format.mimetype	application/pdf
dc.identifier.uri	http://hdl.handle.net/1853/62336
dc.language.iso	en_US
dc.publisher	Georgia Institute of Technology
dc.subject	Cerato-ulmin
dc.subject	Hydrophobin
dc.subject	Microbubbles
dc.title	Formation, structure, and reproducibility of cerato-ulmin hydrophobin-coated bubbles
dc.type	Text
dc.type.genre	Dissertation
dspace.entity.type	Publication
local.contributor.advisor	Russo, Paul S.
local.contributor.corporatename	School of Materials Science and Engineering
local.contributor.corporatename	College of Engineering
relation.isAdvisorOfPublication	c39ee95a-25f1-43ab-bd22-26848a113a63
relation.isOrgUnitOfPublication	21b5a45b-0b8a-4b69-a36b-6556f8426a35
relation.isOrgUnitOfPublication	7c022d60-21d5-497c-b552-95e489a06569
thesis.degree.level	Doctoral