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RESEARCH INTERACTION TEAM (RIT):

Biomembranes: Experiments, Mathematical Modeling, and Numerical Simulation

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SPRING 2007

Department of Mathematics &

Institute for Physical Science and Technology (IPST)

University of Maryland, College Park

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Directors:
Stuart Antman (ssa@math.umd.edu), Wolfgang Losert (wlosert@umd.edu),

Arthur La Porta (alaporta@umd.edu), Dionisios Margetis (dio@math.umd.edu),

Ricardo Nochetto (rhn@math.umd.edu),
Arpita Upadhyaya (arpitau@umd.edu)

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Scope & Research Focus: The complex
properties and functions of biological membranes

have been the subject of experimental and theoretical scrutiny for many years. Despite

continued progress in this direction, both from physical and biological perspectives, many

questions still remain unanswered.

An emerging topic of interest is the interplay of membrane geometry (i.e.,
shape and curvature)

and mechanics with chemistry (interactions with neighboring molecules in a fluid). An understanding

of related problems can
elucidate issues of cell motility and, more generally,
mechanisms of cancer.

In this RIT we will introduce and work on combining basic
concepts, and

analytical and numerical techniques
for the mechanics and perhaps chemistry of biomembranes.

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CREDIT:
Students can take 1-3 units of credit by attending
this RIT, and

studying and presenting a paper on an acceptable topic agreed on with one
of the organizers,

or discussing original research.

For details, contact one of the Directors/Organizers (above).

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LECTURES:
Thursdays, 5p.m.-6p.m. (unless noted otherwise);
Room MATH
1308

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CONFIRMED
SPEAKERS (so far):
S. Antman (Math. & IPST), W. Losert (Physics & IPST),

A. La Porta (Physics & IPST), D. Margetis (Math. & IPST),
R. Nochetto (Math. & IPST),

P. Randazzo (NIH),
A. Upadhyaya (Physics & IPST)

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Schedule for Spring 2007:

(talks will be posted on a week-by-week basis)

January 25, 5:15pm-6:15pm: *Introductory talk on biomembranes,
* by W. Losert.

February 1
: *Continuation of talk on biomembranes,*
by W. Losert --
Questions and Discussion.

February 8:
* Towards a minimal model of biomembranes (and what this
means): Introduction,* by D. Margetis.

February 15:
* Mechanics and energy in shells: The elementary theory,*
by S. Antman.

February 22:
* Bending energy: Open questions, equations and simulations,*
by S. Pauletti and D. Margetis.

March 8:
* Bending energy (continued),*
by R. Nochetto.

March 15:
*On Modeling Complex Micro-Scale Systems: What Are The Equations?*
by B. Shapiro.

PDF of talk here

March 29:
*A fluid - solid ring interaction model,*
by D. Bourne

April 5:
*NO MEETING*

April 12:
*Probing polymerization forces using deformable lipid vesicles,*
by Arpita
Upadhyaya.

April 19:
*NO MEETING*