research summary
DESCRIPTION
A short set of slides that describe the research done during my PhD.TRANSCRIPT
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Custom particles
www.nlm.nih.gov
Preventing immune-response induced thrombosis*
*Lee, et. al. Prog Polym Sci, 1995**Storm, et. al. Adv. Drug. Del. Revs, 1995***Jonas, et. al. Nano Letters, 2008, van Vlerken, et. al. Pharm Rsch, 2007
Targeted uptake of genes, drugs by specific cells, stimuli-responsive materials***
Polymer design parameters for drug delivery
Rdrug
Hbrush
Rprotei
n
σ
σRg2
Goal: find the polymer-induced
repulsion as a function of:
Rprotei
nRdrug Hbrush
Rdrug
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0.93 2.25
protein drug
drug g brush
R R DF ~ ln
R R H
Trombly and Ganesan, JPS(B), 2009
Drug-protein project
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Extensions
Trombly and Ganesan, JCP, 2010 (accepted)
Polyethylene glycol
hydrogen bonding
Result: two phases
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Design of neutral surfacesRandom copolymer brush
Mansky, et al, Science, 1997f
A B
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Model-SCFTw(r)
q(r,s)
)s,(q)(w)s,(q6Nb
s)s,(q 2
2
rrrr
qc(r,s)
w(r) = vρ(r)
)])(w[;(Qlnd)(wdv21
)](w[F 2 rrrrrr
Energetic Entropic
Blood protein
Polymer-coated drug
ρ(r)
Bispherical coordinates
q 0
Fredrickson, “The Equilibrium Theory of Inhomogeneous Polymers,” 2005