Large-scale homogeneous molecular templates for femtosecond time-resolved studies of the guest-host interaction

J Biotechnol. 2004 Aug 26;112(1-2):139-49. doi: 10.1016/j.jbiotec.2004.04.023.

Abstract

Self-assembled monolayer films based on iodobenzoyloxy-functionalized resorc[4]arenes were prepared on gold substrates to serve as model systems for future time-resolved studies of molecular recognition, a mechanism of outstanding importance in bioorganic systems. The film properties were tested using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and imaging ellipsometry. An apparatus for time-resolved electron spectroscopy utilizing femtosecond soft X-ray pulses is capable of detecting iodine core-level photolines and the photoinduced dissociation after ultraviolet illumination. The developed technique holds promise for tracking the temporal evolution of chemical shifts of atomic markers as local probes for the dynamics of the guest-host interaction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzoates / chemistry*
  • Biopolymers / analysis*
  • Biopolymers / chemistry*
  • Kinetics
  • Membranes, Artificial*
  • Microscopy, Energy-Filtering Transmission Electron / instrumentation
  • Microscopy, Energy-Filtering Transmission Electron / methods*
  • Molecular Probes / chemistry*
  • Protein Interaction Mapping / instrumentation
  • Protein Interaction Mapping / methods*
  • Time Factors
  • X-Ray Diffraction / instrumentation
  • X-Ray Diffraction / methods*

Substances

  • Benzoates
  • Biopolymers
  • Membranes, Artificial
  • Molecular Probes
  • rrcc-2,8,14,20-tetra-(n-decyl-(n-decylsulfido))-4,6,10,12,16,18,22,24-octa-O-(4-iod0benzoyl)resorc(4)arene