Stable Organic Photosensitizer Nanoparticles with Absorption Peak beyond 800 Nanometers and High Reactive Oxygen Species Yield for Multimodality Phototheranostics

ACS Nano ◽  
2020 ◽  
Vol 14 (8) ◽  
pp. 9917-9928 ◽  
Author(s):  
Yingpeng Wan ◽  
Guihong Lu ◽  
Wei-Chih Wei ◽  
Yi-Hsuan Huang ◽  
Shengliang Li ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Absorption Peak ◽  
Oxygen Species ◽  
High Reactive Oxygen Species

Synergistic Antibacterial Effect of the Combination of ɛ-Polylysine and Nisin against Enterococcus faecalis

2015 ◽  
Vol 78 (12) ◽  
pp. 2200-2206 ◽  
Author(s):  
FANG LIU ◽  
MEI LIU ◽  
LIHUI DU ◽  
DAOYING WANG ◽  
ZHIMING GENG ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Enterococcus Faecalis ◽  
Antibacterial Effect ◽  
Combined Treatment ◽  
Reactive Oxygen ◽  
Species Level ◽  
Reactive Oxygen Species Level ◽  
Oxygen Species ◽  
High Reactive Oxygen Species ◽  
Permeability Assay

This study evaluated the antibacterial effect of the combination of ɛ-polylysine (ɛ-PL) and nisin against Enterococcus faecalis strains. The combination of ɛ-PL and nisin showed synergistic antibacterial activity against three Enterococcus strains. Scanning electron microscopy and a membrane permeability assay revealed that the combined treatment with ɛ-PL and nisin synergistically damaged the cell morphology of E. faecalis strain R612Z1 cells. Both ɛ-PL and nisin can dissipate the transmembrane electric potential of E. faecalis R612Z1 cells, but these peptides did not affect the transmembrane pH gradient. The combination of ɛ-PL and nisin can produce a high reactive oxygen species level in E. faecalis R612Z1 cells. The results indicated that the uptake of ɛ-PL into cells was promoted through nisin and that the combination of ɛ-PL and nisin could produce a high reactive oxygen species level in E. faecalis R612Z1 cells, leading to cell growth inhibition.

High reactive oxygen species levels are detected at the end of the chronological life span of translocant yeast cells

2015 ◽  
Vol 291 (1) ◽  
pp. 423-435 ◽  
Author(s):  
Jason Sims ◽  
Carlo V. Bruschi ◽  
Chloé Bertin ◽  
Nicole West ◽  
Michael Breitenbach ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Life Span ◽  
Reactive Oxygen ◽  
Yeast Cells ◽  
Oxygen Species ◽  
Chronological Life Span ◽  
High Reactive Oxygen Species

scholarly journals Oxygen Pathway Modeling Estimates High Reactive Oxygen Species Production above the Highest Permanent Human Habitation

PLoS ONE ◽  
2014 ◽  
Vol 9 (11) ◽  
pp. e111068 ◽  
Author(s):  
Isaac Cano ◽  
Vitaly Selivanov ◽  
David Gomez-Cabrero ◽  
Jesper Tegnér ◽  
Josep Roca ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen Species Production ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Human Habitation ◽  
High Reactive Oxygen Species ◽  
Species Production ◽  
Pathway Modeling

Mitochondria as a source of reactive oxygen species

2009 ◽  
pp. c3 ◽  
Author(s):  
Helena M. Cochemé ◽  
Michael P. Murphy
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Oxygen Species
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