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Self-assembly of Peptide Nanotubes NSF Site Visit June 10, 2004 Shuguang Zhang

Self-assembly of Peptide Nanotubes NSF Site Visit June 10, 2004 Shuguang Zhang Center for Biomedical Engineering, Center for Bits & Atoms Massachusetts Institute of Technology Cambridge, MA 02139, USA. Peptide surfactant-detergents. Sylvain Vauthey, PNAS , 4/2002,

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Self-assembly of Peptide Nanotubes NSF Site Visit June 10, 2004 Shuguang Zhang

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  1. Self-assembly of Peptide Nanotubes NSF Site Visit June 10, 2004 Shuguang Zhang Center for Biomedical Engineering, Center for Bits & Atoms Massachusetts Institute of Technology Cambridge, MA 02139, USA http://web.mit.edu/lms/www/

  2. Peptide surfactant-detergents http://web.mit.edu/lms/www/

  3. Sylvain Vauthey, PNAS, 4/2002, Steve Santoso, NanoLetters, 7/2002 Geoffrey von Maltzahn, Langmuir, 5/2003 http://web.mit.edu/lms/www/

  4. lipid bilayer solubilized membrane proteins detergent micelles + monomers + lipid-detergent micelles http://web.mit.edu/lms/www/

  5. The energy harvest systems are embedded in membranes http://web.mit.edu/lms/www/

  6. 1.0 1 1 diluted 0.8 h [a.u.] solution Absorption [a.u.] 0 0 0.6 A6K 650 670 690 l [nm] day 7 0.4 day 21 Fluorescent intensity [a.u.] 0.2 0.0 650 675 700 725 750 775 800 Wavelength (l) [nm] Peptide detergents stabilized photosystem I for long-term Das, et al., NanoLetters, June 2004 http://web.mit.edu/lms/www/

  7. 0.4 0.2 0.0 (l = 808nm, 10 W/cm2) -0.2 dark J [mA/cm2] 1.0 light w. peptides -0.4 light - no peptides 0.8 0 0.05 -0.05 V [V] 0.6 Absorption [a.u.] Quantum efficiency [a.u.] 0.4 0.2 0.0 700 750 800 850 900 950 Wavelength [nm] Peptide detergents stabilized photosystem I generate current & voltage Das, et al., NanoLetters, June 2004 http://web.mit.edu/lms/www/

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