Journal of Fluorescence

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Fluorescent Carbon Quantum Dots Functionalized by Poly L-Lysine: Efficient Material for Antibacterial, Bioimaging and Antiangiogenesis Applications
Journal of Fluorescence - Tập 32 - Trang 1789-1800 - 2022
Anuja Vibhute, Omkar Nille, Govind Kolekar, Sonali Rohiwal, Shubham Patil, Seunghyun Lee, Arpita Pandey Tiwari
This study illustrates the synthesis of functionalized carbon quantum dots (CQDs) by the one-pot pyrolysis method. The functionalization agent used in CQD synthesis was poly l- lysine (PLL). Various physicochemical techniques were employed to confirm the successful formation of PLLCQD including High resolution transmission electron microscopy (HR-TEM), UV-Vis spectroscopy, fluorescence spectroscop...... hiện toàn bộ
New Fluorescent Labels: 4- and 7-Chlorofluorescein
Journal of Fluorescence - Tập 15 - Trang 829-833 - 2005
Feng-Yan Ge, Xi-Long Yan, Fan-Yong Yan, Hui-Ying Pan, Li-Gong Chen
A new mixture of 4- and 7-chlorofluorescein were synthesized by condensation of resorcinol with 3-chlorophthalic anhydride in the presence of methanesulfonic acid or zinc chloride. These regioisomers were successfully separated by chromatography. The photophysical properties were examined and their absorption and emission maxima at long wavelength, high fluorescence quantum yield, and narrow emiss...... hiện toàn bộ
Synthesis, Characterization of NR@SiO2/PNIPAm-co-Ppa Composite Nanogel and Study On Its Application in Photodynamic Therapy
Journal of Fluorescence - Tập 32 Số 2 - Trang 771-782 - 2022
Wang, Zirui, Song, Qiusheng, Zhu, Lin, Zhao, Chengyan, Ma, Haihong
In the present study, a novel composite nanogel based on fluorescence resonance energy transfer (FRET) and its application for photodynamic therapy is reported. First of all, nanoparticles of silica doped with Nile Red (NR) were prepared by Stöber method, then they were decorated by γ-methacryloxypropyltrimethoxysilane (MPS) to prepare MPS decorated NR@SiO2 nanoparticles, and finally they were cop...... hiện toàn bộ
Fluorescence resonance energy transfer: FRET studies of ligand binding to cell surface receptors
Journal of Fluorescence - Tập 8 - Trang 13-20 - 1998
Angelique Y. Louie, Bruce J. Tromberg
We describe a simple optical system employing fluorescence resonance energy transfer (FRET) to identify potential binding domains on the macrophage scavenger receptor for the ligand maleylated bovine serum albumin (mal-BSA). Using a plasma membrane vesicle system, we placed donor probes on the ligand and acceptor probes in the membrane to determine the distance of bound ligand from the cell surfac...... hiện toàn bộ
Fluorescence Properties and Dipole Moments of Novel Fused Thienobenzofurans. Solvent and Structural Effects
Journal of Fluorescence - Tập 21 - Trang 2133-2141 - 2011
Jean-Jacques Aaron, Cyril Párkányi, Alain Adenier, Caroline Potin, Zuzana Zajíčková, Omar R. Martínez, Jiří Svoboda, Pavel Pihera, Petr Váchal
The electronic absorption, fluorescence excitation and emission spectra, and fluorescence quantum yields of novel fused thienobenzofurans, including thieno[3,2-b][1]benzofuran (1), [1]benzothieno[3,2-b]furan (2), and [1]benzothieno[3,2-b][1]benzofuran (3), were recorded in fourteen solvents of different polarities at room temperature. Compound 2 was not fluorescent. Experimental ground-state dipol...... hiện toàn bộ
Micelle-Enhanced Spectrofluorimetric Method for Determination of Cyproheptadine Hydrochloride in Tablets: Application to In-Vitro Drug Release and Content Uniformity Test
Journal of Fluorescence - Tập 24 - Trang 85-91 - 2013
F. Belal, M. K. Sharaf El-Din, M. M. Tolba, H. Elmansi
A highly sensitive and simple spectrofluorimetric method was developed for the determination of cyproheptadine hydrochloride (CYP) in its pharmaceutical formulations. The proposed method is based on the investigation of the fluorescence spectral behaviour of CYP in a sodium dodecyl sulphate (SDS) micellar system. In aqueous solution, the fluorescence intensity of CYP was greatly enhanced (150 %) i...... hiện toàn bộ
Design, Synthesis, Structural Investigation and Photo Induced Biological Investigations of Co(II), Ni(II) and Cu(II) Complexes Derived from N,O Donor Schiff Bases
Journal of Fluorescence - - 2024
Gali Ramesh, Sreenu Daravath, K. Jagadesh Babu, Ravinder Dharavath, Amit Ranjan, Dasari Ayodhya, Shivaraj
A series of chelated metal complexes, [Co(LI)2] (1), [Ni(LI)2] (2), [Cu(LI)2] (3) [Co(LII)2] (4), [Ni(LII)2] (5) and [Cu(LII)2] (6) were designed and synthesized from newly synthesized Schiff bases, LI = 2-((E)-(5-(4-fluorophenyl)isoxazol-3-ylimino)methyl)-5-methylphenol and LII = 2-((E)-(5-(4-fluorophenyl)isoxazol-3-ylimino)methyl)-4-chlorophenol. The synthesized compounds were characterized by e...... hiện toàn bộ
Charge Transfer Photophysics of Tetra(α-amino) Zinc Phthalocyanine
Journal of Fluorescence - - 2009
Xianfu Zhang, Li Xijiang, Lihong Niu, Lou Sun, Lu Liu
Theoretical and Experimental Studies of N,N-Dimethyl-N′-Picryl-4,4′-Stilbenediamine
Journal of Fluorescence - - 2018
Vladislav Papper, Yuanyuan Wu, V. A. Kharlanov, Ayrine Sukharaharja, Terry W. J. Steele, Robert S. Marks
Spectroscopic Investigations on the H-Type Aggregation of Coumarin 153 Dye Molecules: Role of Au Nanoparticles and γ- Cyclodextrin
Journal of Fluorescence - Tập 22 - Trang 303-310 - 2011
Tapasi Sen, Santanu Bhattacharyya, Sadananda Mandal, Amitava Patra
Here, we study the formation of H-type aggregation of coumarin 153 (C153) dye molecule in presence of Au nanoparticles and the removal of dye aggregation in presence of γ- cyclodextrin (CD) due to confinement of dye molecules inside the nanocavity of γ- cyclodextrin (CD) using steady state and time resolved spectroscopy. Blue shifting of absorption band, photoluminescence (PL) band and the enhance...... hiện toàn bộ
Tổng số: 3,074   
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