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The effect of silver thickness on the enhancement of polymer based SERS substrates

We investigated silver-covered polymer based nanogratings as substrates for surface-enhanced Raman spectroscopy (SERS), in particular with respect to the thickness of the plasmonically active silver film....

Molecular resonant dissociation of surface-adsorbed molecules by plasmonic nanoscissors

The ability to break individual bonds or specific modes in chemical reactions is an ardently sought goal by chemists and physicists. While photochemistry based methodologies are very successful in controlling...

Synthesis, characterization and mesomorphic investigations of ester-substituted aroylhydrazones possessing a lateral hydroxyl group

The synthesis, characterization and investigation of a new liquid crystalline series of ester containing aroylhydrazones with a lateral hydroxyl group, N-[4-(40-alkoxy)benzoyloxy-2-hydroxy-benzylidene]-N0-[400-alkoxybenzoyl]hydrazine...

Journal of Biophotonics – publishing novel results in the broad range of Biophotonic research-Editorial

Complexity of fatty acid distribution inside human macrophages on single cell level using Raman micro-spectroscopy

Macrophages are phagocytic cells which are involved in the non-specific immune defense. Lipid uptake and storage behavior of macrophages play also a key role in the development of atherosclerotic lesions...

Investigating drug induced changes in single, living lymphocytes based on Raman micro-spectroscopy

Raman spectroscopy is a powerful tool for label-free, single cell characterization. In many reported studies, a Raman spectrum is acquired from a fraction of the cell volume and used as a representative...

Characterization of collagen and cholesterol deposition in atherosclerotic arterial tissue using non-linear microscopy

Atherosclerosis is characterized by the accumulation of lipids within the arterial wall and is commonly diagnosed using standard histology. Non-linear microscopy represents a possible label-free alternative...

Plasmonically Enhanced Electron Escape from Gold Nanoparticles and Their Polarization-Dependent Excitation Transfer along DNA Nanowires

Here we show plasmon mediated excitation transfer along DNA nanowires over up to one micrometer. Apparently, an electron excitation is initiated by a femtosecond laser pulse that illuminates gold nanoparticles...

Optical properties of nanowire structures produced by the metal-assisted chemical etching of lightly doped silicon crystal wafers

Layers of silicon nanowires with diameters of 20−200 nm, grown by metal-assisted chemical etching of monocrystalline silicon substrates of p-type conductivity with a resistivity of 1−20Ohm · cm and...

Nanoparticles prepared from porous silicon nanowires for bio-imaging and sonodynamic therapy

Evaluation of cytotoxicity, photoluminescence, bio-imaging, and sono-sensitizing properties of silicon nanoparticles (SiNPs) prepared by ultrasound grinding of porous silicon nanowires (SiNWs) have been...