Rajeshirke, Manali Shah, Dharit Sekar, Nagaiyan
Published in
Journal of Fluorescence
The synthesis, photophysical, linear and nonlinear optical (NLO) properties of novel fluorescent styryls based on 2-N,N-dibutylamino-4-phenyl thiazole as donor attached to different acceptor groups via conjugated π-bridge were studied with the help of solvatochromic model. The NLO properties of extended styryls based on benzylidene malononitrile an...
Pal, Robert Barker, Abigail C. J. Hummel, Daniel Pålsson, Lars-Olof
Published in
Journal of Fluorescence
In this work we demonstrate that time domain techniques can be used successfully to monitor realtively weak modulations of the fluorescence in sensing applications. The metal sensing complex Newport Green DCF™ can detect selected transition metals in vivo as well as in vitro. Incremental addition of Ni and/or Zn (in vitro) lead to a substantial red...
Mukherjee, Soma Betal, Soumi
Published in
Journal of Fluorescence
A novel luminescent hydrazone ligand was synthesized via 1:1 condensation reaction of 9-anthracene aldehyde and 2-hydrazinobenzoic acid followed by its characterization with the help of absorption, emission, FTIR, NMR and mass studies. It was investigated as a reversible, ratiometric and turn-on luminescent chemosensor for Cu2+ in aqueous environme...
Li, Gongchun Liu, Yongxiang Yang, Xiaopeng Ye, Yong
Published in
Journal of Fluorescence
A near-infrared ICT-based fluorescent probe LX was successfully obtained. LX which detection limit is low as 22.2 nm shows excellent selectivity and high sensitivity to diazane. LX can selectively detected diazane from other species over a wide pH (3–10) range. A obvious color change of solution from yellow to orange can be found, allowing the nake...
Lišková, Petra Konopásek, Ivo Fišer, Radovan
Published in
Journal of Fluorescence
The sensitized phosphorescence of Tb3+ is often used for the assessment of the ion binding to various chelating agents or natural Ca2+-binding proteins. The detailed structure of the Tb3+ excitation spectrum gives a special advantage for analysis; any extra absorption peak can be easily detected which provides simple and direct evidence that resona...
Bhagwat, Archana A. Sekar, Nagaiyan
Published in
Journal of Fluorescence
The effect of three substituents N,N-diethylamine, carbazole and diphenylamine at the 7 position of coumarin on linear and nonlinear optical properties are studied using absorption and emission solvatochromism, and DFT. By varying the substituent 53 nm red shift is achieved in emission. The polarity plots with regression close to unity revealed goo...
Jayaweera, Supuli Yin, Ke Ng, Wun Jern
Published in
Journal of Fluorescence
Photoluminescent carbon dots have gained increasing attention in recent years due to their unique optical properties. Herein, a facile one-pot hydrothermal process is used to develop nitrogen-doped carbon dots (NCDs) with durian shell waste as the precursor and Tris base as the doping agent. The synthesized NCDs showed a quantum yield of 12.93% wit...
Sekar, Nagaiyan Katariya, Santosh Rhyman, Lydia Alswaidan, Ibrahim A. Ramasami, Ponnadurai
Published in
Journal of Fluorescence
Comparative study of nonlinear optical properties of red fluorescent coumarins was carried out with density functional theory based ab initio method using the popular global hybrid (GH) and range separated hybrid (RSH) functionals and correlated with the spectroscopic values. The GHs - M06 L, PBE1PBE, M06, BHHLYP, M062X and M06HF and RSHs - HISSbPB...
Mane, K. G. Nagore, P. B. Pujari, S. R.
Published in
Journal of Fluorescence
Novel luminophors of anthracene (AN) and tetracene (TN) doped biphenyl were prepared using Conventional Solid State reaction technique. Fluorescence spectroscopy, XRD, SEM, TGA-DSC and Cyclic Voltammetry techniques have been employed for photophysical, electrochemical and thermal study. The X-ray diffraction study revealed the formation of homogene...
Sonu, Vikash Kumar Mitra, Sivaprasad
Published in
Journal of Fluorescence
Surface modified colloidal gold (Au) and silver (Ag) nanoparticles (NPs) were used as efficient quenchers of luminol (LH2) fluorescence either in homogeneous aqueous medium or its noncovalent assembly with bovine serum albumin (BSA). The mechanism as well as the extent of fluorescence quenching was found to be strongly dependent on the nature of th...
