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Development of pH-sensitive indicator dyes for the preparation of micro-patterned optical sensor layers

Functional hydroxyazobenzene dyes for optically monitoring pH in the range from 6 to 10 were synthesised. The pKa values of the dyes have been tailored by appropriate choice of substituents in position...

Chip-based detection methods

Suitability of infrared spectroscopic imaging as an intraoperative tool in cerebral glioma surgery

Infrared spectroscopic imaging is a promising intraoperative tool which enables rapid, on-site diagnosis ofbrain tumors during neurosurgery. A classification model was recently developed using infrared...

A guide to super-resolution fluorescence microscopy

For centuries, cell biology has been based on light microscopy and at the same time been limited by its optical resolution. However, several new technologies have been developed recently that bypass this...

Thermo-Optic Switching Effect Based on Fluid-Filled Photonic Crystal Fiber

We report a thermo-optic switching effect with a high extinction ratio of 30 dB by means of filling a fluid into air holes of a solid-core photonic crystal fiber (PCF). Such an effect can perform a turn...

Dynamics of charge separation in the excited-state chemistry of protochlorophyllide

In this study the excited-state dynamics of protochlorophyllide a (PChlide), the substrate of the enzyme protochlorophyllide oxidoreductase, was examined by means of time-resolved absorption anisotropy...

Protochlorophyllide a: A Comprehensive Photophysical Picture

The photochemistry of protochlorophyllide a, a precursor in the biosynthesis of chlorophyll and substrate of the light regulated enzyme protochlorophyllide oxidoreductase, is investigated by pump-probe...

Subpicosecond dynamics in calf-thymus DNA, in the presence of Zn2+ ions: A Raman spectroscopic study

In this paper the Raman total half bandwidths of calf-thymus DNA vibrations have been measured as a function of Zn2+ ions concentration, in the presence of a constant concentration of Na+ ions, respectively....

Weak continuous measurements of multiqubits systems

In this review we summarize our recent experiments on the investigation on superconducting qubits. Instead of strong projective measurement used by other groups in their first pioneering experiments we...

Optimal control of peridinin excited-state dynamics

Optimal control is applied to study the excited-state relaxation of the carbonyl-carotenoid peridinin in solution. Phase-shaping of the excitation pulses is employed to influence the photoinduced reaction...