Pluronic‐loaded Silver Nanoparticles/Photosensitizers Nanohybrids: Influence of the Polymer Chain Length on Metal‐Enhanced Photophysical Properties

2021 ◽  
Author(s):  
Danielle Ramos Mota ◽  
Giovanni Alexsander Silva Lima ◽  
Hueder Paulo Moisés de Oliveira ◽  
Diogo Silva Pellosi
Keyword(s):  
Silver Nanoparticles ◽  
Chain Length ◽  
Polymer Chain ◽  
Photophysical Properties

Ru(bpy)32+ derivatized polystyrenes constructed by nitroxide-mediated radical polymerization. Relationship between polymer chain length, structure and photophysical properties

2015 ◽  
Vol 6 (47) ◽  
pp. 8184-8193 ◽  
Author(s):  
Gyu Leem ◽  
Shahar Keinan ◽  
Junlin Jiang ◽  
Zhuo Chen ◽  
Toan Pho ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Chain Length ◽  
Polymer Chain ◽  
Light Harvesting ◽  
Photophysical Properties ◽  
Ruthenium Complexes

A series of polystyrene-based light harvesting polymers featuring pendant polypyridyl ruthenium complexes has been synthesized.

scholarly journals Silver Nanoparticles Stabilized with Phosphorus-Containing Heterocyclic Surfactants: Synthesis, Physico-Chemical Properties, and Biological Activity Determination

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1883
Author(s):  
Martin Pisárčik ◽  
Miloš Lukáč ◽  
Josef Jampílek ◽  
František Bilka ◽  
Andrea Bilková ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Biological Activity ◽  
Zeta Potential ◽  
Chain Length ◽  
Alkyl Chain ◽  
Chemical Properties ◽  
Alkyl Chain Length ◽  
Microbial Pathogens ◽  
Physico Chemical ◽  
Phosphorus Containing

Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions. Zeta potential of silver nanodispersions ranges from +35 to +70 mV, which indicates the formation of stable silver nanoparticles (AgNPs). Long-chain heptadecyl and octadecyl homologs of the surfactants series provided the most intensive stabilizing effect to AgNPs, resulting in high positive zeta potential values and smaller diameter of AgNPs in the range 50–60 nm. A comparison with non-heterocyclic alkyltrimethylphosphonium surfactants of the same alkyl chain length showed better stability and more positive zeta potential values for silver nanodispersions stabilized with heterocyclic phospholium surfactants. Investigations of biological activity of phospholium-capped AgNPs are represented by the studies of antimicrobial activity and cytotoxicity. While cytotoxicity results revealed an increased level of HepG2 cell growth inhibition as compared with the cytotoxicity level of silver-free surfactant solutions, no enhanced antimicrobial action of phospholium-capped AgNPs against microbial pathogens was observed. The comparison of cytotoxicity of AgNPs stabilized with various non-heterocyclic ammonium and phosphonium surfactants shows that AgNPs capped with heterocyclic alkyldimethylphenylphospholium and non-heterocyclic triphenyl-substituted phosphonium surfactants have the highest cytotoxicity among silver nanodispersions stabilized by the series of ammonium and phosphonium surfactants.

Effect of surface properties and polymer chain length on polymer adsorption in solution

2021 ◽  
Vol 155 (3) ◽  
pp. 034701
Author(s):  
Emily Y. Lin ◽  
Amalie L. Frischknecht ◽  
Karen I. Winey ◽  
Robert A. Riggleman
Keyword(s):  
Surface Properties ◽  
Chain Length ◽  
Polymer Chain ◽  
Polymer Adsorption ◽  
Effect Of Surface

Effect of Polymer Chain Length on the Superlattice Assembly of Functionalized Gold Nanoparticles

Langmuir ◽  
2021 ◽  
Author(s):  
Hyeong Jin Kim ◽  
Wenjie Wang ◽  
Honghu Zhang ◽  
Guillaume Freychet ◽  
Benjamin M. Ocko ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Chain Length ◽  
Polymer Chain ◽  
Functionalized Gold Nanoparticles

Naphthalimide-containing conjugated polyelectrolytes with different chain configurations

2019 ◽  
Vol 17 (10) ◽  
pp. 2635-2639 ◽  
Author(s):  
Yu Chen ◽  
Ying Tan ◽  
Chunyan Tan ◽  
Yunpeng Lu ◽  
Yuzong Chen ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes

Different polymer chain configurations along the main chains of poly(naphthalimide and phenylene ethynylene)s lead to dramatic differences in polymer conformations and photophysical properties.

Atomistic Simulations of Coating of Silver Nanoparticles with Poly(vinylpyrrolidone) Oligomers: Effect of Oligomer Chain Length

2015 ◽  
Vol 119 (14) ◽  
pp. 7888-7899 ◽  
Author(s):  
Alexander Kyrychenko ◽  
Oleksandr M. Korsun ◽  
Iurii I. Gubin ◽  
Sergiy M. Kovalenko ◽  
Oleg N. Kalugin
Keyword(s):  
Silver Nanoparticles ◽  
Chain Length ◽  
Atomistic Simulations
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