Site-directed dichroism is an emerging technique for the determination of membrane protein structure. However, due to a number of factors, among which is the high natural abundance of (13)C, the use of this technique has been restricted to the study of small peptides. We have overcome these problems through the use of a double C-deuterated glycine as a label. The modification of a single residu...

Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly impact development of future information tec...

Cytochrome mediates the step in respiratory chain. accepts electrons by one cytochrome c accumulates four equivalents until finally reduces The reducing reside on hemes (cyto(I and u3, resp.) on two There is evidence that electron transfer cytochrome c oxygen crosses cristae membrane mitochondria whereby contributes the electric generation (for review, see [ 1 ] ). The orientation of the two he...

We examined polymer conformations at a strongly adsorbing solid surface and their evolution with elapsed time during the adsorption process. Poly(dimethylsiloxane) (PDMS: Mw ) 118 000; Mw/Mn ) 1.16) was allowed to adsorb onto oxidized germanium from dilute carbon tetrachloride solutions. The mean backbone orientation was found to change even after the mass adsorbed had saturated; its conformati...

The transmission characteristics of perforated flat plates which act as dichroic filters or frequency selective surfaces were measured in the far-infrared (FIR) region by Terahertz Time-Domain Spectroscopy (THz-TDS). The mechanically made dichroic filters were designed for the cutoff frequencies of 155, 586, and 773 GHz. Due to their sharp cutoff characteristics, dichroic filters are used in qu...

Transform-limited ultrashort green and infrared light pulses have been generated from a Nd:YAG laser mode locked by an intracavity second-harmonic crystal in combination with a dichroic output coupler. The mode-locking process is based on substantial reconversion of the second-harmonic radiation back into fundamental radiation after reflection by the dichroic mirror. With this technique light p...

Although the analogies between the electron energy loss spectra and X-ray absorption spectra were recognized long ago, the possibility to observe the magnetic circular dichroism in the electron microscope was demonstrated only recently. This technique combines the atom specificity with the high spatial resolution of the transmission electron microscope. Being a very young technique, there are s...