Amplified Quenching of a Conjugated Polyelectrolyte by Cyanine Dyes

2004 ◽  
Vol 126 (42) ◽  
pp. 13685-13694 ◽  
Author(s):  
Chunyan Tan ◽  
Evrim Atas ◽  
Jürgen G. Müller ◽  
Mauricio R. Pinto ◽  
Valeria D. Kleiman ◽  
...  
Keyword(s):  
Cyanine Dyes ◽  
Conjugated Polyelectrolyte ◽  
Amplified Quenching

Remarkable Photophysics and Amplified Quenching of Conjugated Polyelectrolyte Oligomers

2013 ◽  
Vol 4 (9) ◽  
pp. 1410-1414 ◽  
Author(s):  
Fude Feng ◽  
Jie Yang ◽  
Dongping Xie ◽  
Tracy D. McCarley ◽  
Kirk S. Schanze
Keyword(s):  
Conjugated Polyelectrolyte ◽  
Amplified Quenching

Conjugated Polyelectrolyte Dendrimers: Aggregation, Photophysics, and Amplified Quenching

Langmuir ◽  
2012 ◽  
Vol 28 (48) ◽  
pp. 16679-16691 ◽  
Author(s):  
Fude Feng ◽  
Seoung Ho Lee ◽  
Sung Won Cho ◽  
Sevnur Kömürlü ◽  
Tracy D. McCarley ◽  
...  
Keyword(s):  
Conjugated Polyelectrolyte ◽  
Amplified Quenching

Solvent-Induced Self-Assembly of aMeta-Linked Conjugated Polyelectrolyte. Helix Formation, Guest Intercalation, and Amplified Quenching

2004 ◽  
Vol 16 (14) ◽  
pp. 1208-1212 ◽  
Author(s):  
C. Tan ◽  
M. R. Pinto ◽  
M. E. Kose ◽  
I. Ghiviriga ◽  
K. S. Schanze
Keyword(s):  
Self Assembly ◽  
Conjugated Polyelectrolyte ◽  
Helix Formation ◽  
Amplified Quenching

A New Method for the Synthesis of Heptamethine Cyanine Dyes:  Synthesis of New Near Infrared Fluorescent Labels

1997 ◽  
Vol 62 (26) ◽  
pp. 9387-9387 ◽  
Author(s):  
Narasimhachari Narayanan ◽  
Lucjan Strekowski ◽  
Malgorzata Lipowska ◽  
Gabor Patonay
Keyword(s):  
Near Infrared ◽  
Cyanine Dyes ◽  
New Method ◽  
Fluorescent Labels

Synthesis, photosensitization and antimicrobial activity evaluation of some novel Merocyanine dyes

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Aspergillus Flavus ◽  
Elemental Analysis ◽  
Cyanine Dyes ◽  
Fungal Strains ◽  
Activity Evaluation ◽  
Visible Spectra ◽  
Merocyanine Dyes

Novel acyclic and cyclic merocyanine dyes derived from the nucleu of furo [(3,2-d) pyrazole; ( d 2 , 3 )imidazole]were prepared. The electronic visible absorptionspectra of all the synthesized new cyanine dyes were examined in 95% ethanolsolution to evaluate their photosensitization properties. Antibacterial andantifungal activities for some selected dyes were tested against various bacterialand fungal strains (Escherichia coli, Staphylococcus aureus, Aspergillus flavus andCandida albicans) to evaluate their antimicrobial activity. Structural identificationwas carried out via elemental analysis, visible spectra, IR and 1H NMRspectroscopic data.

Cationic π-Conjugated Polyelectrolyte Shows Antimicrobial Activity by Causing Lipid Loss and Lowering Elastic Modulus of Bacteria

2020 ◽  
Vol 12 (44) ◽  
pp. 49346-49361
Author(s):  
Ehsan Zamani ◽  
Tyler J. Johnson ◽  
Shyambo Chatterjee ◽  
Cheryl Immethun ◽  
Anandakumar Sarella ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Elastic Modulus ◽  
Conjugated Polyelectrolyte

Synthesis and in vitro evaluation of the antitumoral phototherapeutic potential of squaraine cyanine dyes derived from indolenine

2019 ◽  
Vol 167 ◽  
pp. 98-108 ◽  
Author(s):  
Eurico Lima ◽  
Octávio Ferreira ◽  
Vanessa S.D. Gomes ◽  
Adriana O. Santos ◽  
Renato E. Boto ◽  
...  
Keyword(s):  
Cyanine Dyes ◽  
In Vitro Evaluation

ChemInform Abstract: Cyanine Dyes (VI), (VII), (IX), (XI), (XIII), (XV) from 4-Methyl-6-hydroxyquinoline (I).

ChemInform ◽  
1988 ◽  
Vol 19 (43) ◽  
Author(s):  
I. L. MUSHKALO ◽  
O. A. IL'CHENKO ◽  
A. I. TOLMACHEV ◽  
B. M. GUTSULYAK
Keyword(s):  
Cyanine Dyes

scholarly journals New Hybrid Copper Nanoparticles/Conjugated Polyelectrolyte Composite with Antibacterial Activity

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 401
Author(s):  
Ignacio A. Jessop ◽  
Yasmín P. Pérez ◽  
Andrea Jachura ◽  
Hipólito Nuñez ◽  
Cesar Saldías ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Copper Nanoparticles ◽  
Salmonella Enteritidis ◽  
Theoretical Calculations ◽  
Chemical Reduction ◽  
Metallic Copper ◽  
Resistant Bacteria ◽  
Small Contribution ◽  
Antibiotic Resistant ◽  
Conjugated Polyelectrolyte

In the search for new materials to fight against antibiotic-resistant bacteria, a hybrid composite from metallic copper nanoparticles (CuNPs) and a novel cationic π-conjugated polyelectrolyte (CPE) were designed, synthesized, and characterized. The CuNPs were prepared by chemical reduction in the presence of CPE, which acts as a stabilizing agent. Spectroscopic analysis and electron microscopy showed the distinctive band of the metallic CuNP surface plasmon and their random distribution on the CPE laminar surface, respectively. Theoretical calculations on CuNP/CPE deposits suggest that the interaction between both materials occurs through polyelectrolyte side chains, with a small contribution of its backbone electron density. The CuNP/CPE composite showed antibacterial activity against Gram-positive (Staphylococcus aureus and Enterococcus faecalis) and Gram-negative (Escherichia coli and Salmonella enteritidis) bacteria, mainly attributed to the CuNPs’ effect and, to a lesser extent, to the cationic CPE.

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