Fe3O4@Au@mSiO2 as an enhancing nanoplatform for Rose Bengal photodynamic activity

Nanoscale ◽  
2017 ◽  
Vol 9 (29) ◽  
pp. 10388-10396 ◽  
Author(s):  
I. Rosa-Pardo ◽  
M. Roig-Pons ◽  
A. A. Heredia ◽  
J. V. Usagre ◽  
A. Ribera ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Outer Surface ◽  
Rose Bengal ◽  
Au Nanoparticles ◽  
Core Shell ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Photodynamic Activity

A novel nanoplatform integrated by core–shell Fe3O4@Au nanoparticles encapsulated near the outer surface of mSiO2 nanoparticles has been successfully synthesised and proved to enhance the efficiency of Rose Bengal for singlet oxygen generation.

Robust Organic Photosensitizers Immobilized on a Vinylimidazolium Functionalized Support for Singlet Oxygen Generation under Continuous-Flow Conditions

Synlett ◽  
2020 ◽  
Vol 31 (05) ◽  
pp. 497-501 ◽  
Author(s):  
Koichiro Masuda ◽  
Yao Wang ◽  
Shun-ya Onozawa ◽  
Shigeru Shimada ◽  
Nagatoshi Koumura ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Crucial Role ◽  
Continuous Flow ◽  
Organic Molecules ◽  
Continuous Operation ◽  
Flow Conditions ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Flow Reaction

Rose Bengal was immobilized on a vinylimidazolium functionalized support, and the heterogeneous organic photosensitizer thus prepared was applied for photooxidation reactions of organic molecules under continuous-flow conditions. Substituents of the cation part of the support were found to play a crucial role in determining the lifetime of the catalyst. More than 11 days continuous operation of a flow reaction was achieved.

scholarly journals Luciferase–Rose Bengal conjugates for singlet oxygen generation by bioluminescence resonance energy transfer

2017 ◽  
Vol 53 (33) ◽  
pp. 4569-4572 ◽  
Author(s):  
Seonghoon Kim ◽  
HyeongChan Jo ◽  
Mijeong Jeon ◽  
Myung-Gyu Choi ◽  
Sei Kwang Hahn ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Energy Transfer ◽  
Singlet Oxygen ◽  
Rose Bengal ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Oxygen Species ◽  
Bioluminescence Resonance Energy Transfer ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Luciferase–Rose Bengal conjugates generated reactive oxygen species (ROS) inside cells via bioluminescence resonance energy transfer (BRET) without external light irradiation.

scholarly journals Co-enhancement of fluorescence and singlet oxygen generation by silica-coated gold nanorods core-shell nanoparticle

2014 ◽  
Vol 9 (1) ◽  
pp. 666 ◽  
Author(s):  
Xuebin Ke ◽  
Dong Wang ◽  
Changqing Chen ◽  
Anqi Yang ◽  
Yu Han ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Gold Nanorods ◽  
Core Shell ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Synthesis, Spectro-Electrochemical Properties and Photoreaction with O2 of Lutetium Bis-ethyltetraazaporphyrin

1998 ◽  
Vol 02 (06) ◽  
pp. 517-526 ◽  
Author(s):  
GIAMPAOLO RICCIARDI ◽  
SANDRA BELVISO ◽  
MAURIZIO D'AURIA ◽  
FRANCESCO LELJ
Keyword(s):  
Quantum Yield ◽  
Singlet Oxygen ◽  
Electrochemical Properties ◽  
Ir Absorption ◽  
Type Ii ◽  
Neutral Species ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Near Ir ◽  
Photodynamic Activity

The synthesis, spectroscopic and electrochemical properties of the Lu ( oepz )2 (oepz ≡ 2,3,7,8,12,13,17,18-octakis(ethyl)-5,10,15,20-porphyrazinato) complex are reported. The complex, as inferred from UV-vis spectra recorded at different concentrations, strongly aggregates in solution, the most likely association mode being dimerization. The complex shows a weak near-IR absorption (λ max = 834 nm) that is considerably blue-shifted compared with the near-IR absorption of bis(π-radical) lutetium analogues. The Lu ( oepz )2 neutral species is electrochemically stable between 0.73 and -0.98 V (vs Ag/AgCl), which is the largest range of stability for neutral lutetium di- tetrapyrrole complexes. Lu ( oepz )2 shows excellent Type II photodynamic activity, as indicated by the value of the singlet oxygen generation quantum yield φΔ of 0.94 obtained by comparison with meso-tetraphenylporphyrin.

Phosphazene-bound Rose Bengal: A novel photosensitizer for singlet oxygen generation

1991 ◽  
Vol 1 (3) ◽  
pp. 389-395 ◽  
Author(s):  
Giacomo Facchin ◽  
Francesco Minto ◽  
Mario Gleria ◽  
Roberta Bertani ◽  
Pietro Bortolus
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Rose Bengal-Grafted Biodegradable Microcapsules: Singlet-Oxygen Generation and Cancer-Cell Incapacitation

2011 ◽  
Vol 17 (40) ◽  
pp. 11223-11229 ◽  
Author(s):  
Xiao-Lei Wang ◽  
Yu Zeng ◽  
Yan-Zhen Zheng ◽  
Jian-Feng Chen ◽  
Xia Tao ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Cancer Cell ◽  
Rose Bengal ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation
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