Kaan Kalkan A. – TechConnect Briefs

Single molecule SERS leads to the observation of the intermediate form of green fluorescent protein chromophore

Shafiq N.Z., Shafayet Khurshid Md., Kaan Kalkan A., Oklahoma State University, US

The dominant absorption band at 395 nm of the green fluorescent protein (GFP) is attributed to the protonated form of the chromophore. Photo excitation forms an excited intermediate anion from this excited protonated form and [...]

Monitoring of glass transition at a polymer surface by localized surface plasmon resonance

Kaan Kalkan A., Putla R.K., Oklahoma State University, US

The temperature below which a polymer is in glassy state and above which is in viscous state is called the glass transition temperature (Tg). Investigations on polymer surfaces by various groups revealed that the surface [...]