Formation of fluorescent H-aggregates of a cyanine dye in ultrathin film and its effect on energy transfer

S Chakraborty, P Debnath, D Dey… - … of Photochemistry and …, 2014 - Elsevier
In this communication we report the formation of fluorescent H-aggregates of a cyanine dye
3, 3-Dioctadecyloxacarbocyanine perchlorate (Oxa18) in ultrathin film and its effect on …

Fluorescence resonance energy transfer (FRET) sensor

SA Hussain, D Dey, S Chakraborty, J Saha… - arXiv preprint arXiv …, 2014 - arxiv.org
The applications of Fluorescence resonance energy transfer (FRET) have expanded
tremendously in the last 25 years, and the technique has become a staple technique in …

Role of quantum dot in designing FRET based sensors

J Saha, AD Roy, D Dey, D Bhattacharjee… - Materials Today …, 2018 - Elsevier
Abstract Nowadays Fluorescence Resonance Energy Transfer (FRET), which involves the
nonradiative transfer of excitation energy from an excited state donor to a proximal ground …

Effect of nanoclay laponite and pH on the energy transfer between fluorescent dyes

D Dey, D Bhattacharjee, S Chakraborty… - … of Photochemistry and …, 2013 - Elsevier
Fluorescence resonance energy transfer (FRET) between two dyes acriflavine (Acf) and
rhodamine B (RhB) were investigated in solution and layer-by-layer (LbL) self assembled …

Direct test of the critical exponents at the sol-gel transition

D Kaya, Ö Pekcan, Y Yılmaz - Physical Review E, 2004 - APS
The steady state fluorescence technique was used to study the sol-gel transition for the
solution-free radical cross-linking polymerization of acrylamide (AAm), with N, N …

Elucidation of multiple-point interactions of pyranine fluoroprobe during the gelation

Y Yilmaz, N Uysal, A Gelir, O Guney, DK Aktas… - … Acta Part A: Molecular …, 2009 - Elsevier
We have studied the multiple-point interactions of the pyranine (8-hydroxypyrene-1, 3, 6-
trisulfonic acid, trisodium salt; 3sPyOH) fluoroprobe with polymer chains during the free …

Steady-state fluorescence study on release of camptothecin from agar hydrogel

J Liu, L Chen, L Li, X Hu, Y Cai - International journal of pharmaceutics, 2004 - Elsevier
The slow drug release processes from agar hydrogel were studied by steady-state
fluorescence (SSF) measurement. An anticancer drug, camptothecin (CPT), was used as the …

Critical exponents of gelation and conductivity in polyacrylamide gels doped by multiwalled carbon nanotubes

DK Aktaş, GA Evingür, Ö Pekcan - Composite Interfaces, 2010 - Taylor & Francis
Polyacrylamide (PAM) doped by multiwalled carbon nanotube (MWNT) gels were prepared
with different amounts of MWNTs varying in the range between 0.1 and 15 wt%. The PAM …

Anthocyanins of Delonix Regia Floral Petals: A Novel Approach on Fluorescence Enhancement, Forster Resonance Energy Transfer Mechanism and Photostability …

D Harshitha, A Kumar, HM Mahesh, CG Renuka - Journal of Fluorescence, 2024 - Springer
In this work, we focused on extracting the anthocyanin dye in acetone, butanol, ethanol, and
water solvents from Delonix regia flowers by a simple maceration extraction process. The …

Slow regions percolate near glass transition

Y Yılmaz, A Erzan, Ö Pekcan - The European Physical Journal E, 2002 - Springer
A nanosecond scale in situ probe reveals that a bulk linear polymer undergoes a sharp
phase transition as a function of the degree of conversion, as it nears the glass transition …