Optical spectroscopy of molecular-rotor molecules adsorbed on cellulose

Ron Simkovitch, Dan Huppert*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Steady-state and time-resolved emission techniques were used to study the fluorescence properties of two molecular rotors, thioflavin-T and auramine-O adsorbed on cellulose powder. Molecular rotors are known for their weak fluorescence intensity and short fluorescence lifetime when dissolved in liquids of low viscosity. We found that these molecular-rotor molecules when adsorbed on cellulose exhibit a rather strong steady-state fluorescence spectrum as well as long emission lifetime. We explain these results by the inhibition of segmental intramolecular rotation when these molecules are adsorbed on cellulose.

Original languageEnglish
Pages (from-to)8737-8744
Number of pages8
JournalJournal of Physical Chemistry A
Issue number38
StatePublished - 25 Sep 2014


FundersFunder number
Israel Science Foundation


    Dive into the research topics of 'Optical spectroscopy of molecular-rotor molecules adsorbed on cellulose'. Together they form a unique fingerprint.

    Cite this