In-situ optical absorbance spectroscopy was used to monitor transparent carbon based molecular electronic junctions with various molecular and metal oxide layers. Junctions with molecular layers consisting of N-decylamine (C10N) and fluorene (FL) did not show absorbance changes upon the application of voltage pulses. Junctions with molecular layers consisting of 4-nitroazobenzene (NAB) and 9,10...

The relationship between light-induced absorbance changes and photophosphorylation has been studied in extracts of the photosynthetic bacterium Rhodosfiirillum rubrum purified by partition in dextran-methyl cellulose mixtures. In these preparations infrared light induces absorbance changes in the visible region of the spectrum which are modified by the addition of reductants required for photop...

The 520 nm light-induced absorbance change in wild-type and 4 mutant strains of Chlamydomonas reinhardi was investigated. In the wild-type strain the absorbance change is composed of at least 2 components, P520 I and P520 II, sensitized by Systems I and II respectively. Some of the properties of these components can be studied by using the appropriate photosynthetic mutant strain. A group of mu...

Mix**, wait for the end of the reaction (approx. 10 min) and read the absorbances of the solutions (A2). If the reaction has not stopped after 10 min, continue to read the absorbances at 2 min intervals until the absorbance increases constantly over 2 min. Determine the absorbance differences (A2-A1) for both, blank and sample. Subtract the absorbance difference of the blank from the absorbance...

In recent years, fluorescence microscopy has been revolutionized. Reversible switching of fluorophores enabled circumventing the limits imposed by diffraction. Thus, resolution down to molecular scale became possible. However, best our knowledge, application principles underlying super-resolution reflection not experimentally demonstrated. Here, we present first evidence that this is indeed A l...