Morphology and Kinetics of Aggregation of Silver Nanoparticles Induced with Regioregular Cationic Polythiophene

The aggregation kinetics of negatively charged borate-stabilized silver nanoparticles (NPs) induced by the cationic regioregular polythiophene polyelectrolyte poly{3-[6-(1-methylimidazolium-3-yl)hexyl]thiophene-2,5-diyl bromide} (PMHT-Br) and the morphology of formed aggregates have been investigate...

Description complète

Détails bibliographiques
Publié dans:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 32(2016), 1 vom: 12. Jan., Seite 2-11
Auteur principal: Kazim, Samrana (Auteur)
Autres auteurs: Jäger, Alessandro, Steinhart, Miloš, Pfleger, Jiří, Vohlídal, Jiří, Bondarev, Dmitrij, Štěpánek, Petr
Format: Article en ligne
Langue:English
Publié: 2016
Accès à la collection:Langmuir : the ACS journal of surfaces and colloids
Sujets:Journal Article Research Support, Non-U.S. Gov't
LEADER 01000caa a22002652c 4500
001 NLM25522592X
003 DE-627
005 20250219101636.0
007 cr uuu---uuuuu
008 231224s2016 xx |||||o 00| ||eng c
024 7 |a 10.1021/acs.langmuir.5b03365  |2 doi 
028 5 2 |a pubmed25n0850.xml 
035 |a (DE-627)NLM25522592X 
035 |a (NLM)26630552 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Kazim, Samrana  |e verfasserin  |4 aut 
245 1 0 |a Morphology and Kinetics of Aggregation of Silver Nanoparticles Induced with Regioregular Cationic Polythiophene 
264 1 |c 2016 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 06.05.2016 
500 |a Date Revised 12.01.2016 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a The aggregation kinetics of negatively charged borate-stabilized silver nanoparticles (NPs) induced by the cationic regioregular polythiophene polyelectrolyte poly{3-[6-(1-methylimidazolium-3-yl)hexyl]thiophene-2,5-diyl bromide} (PMHT-Br) and the morphology of formed aggregates have been investigated via ultraviolet-visible light (UV-vis) spectroscopy, transmission electron microscopy (TEM), zeta (ζ) potential measurements, dynamic light scattering (DLS), and time-resolved small-angle X-ray scattering (SAXS). Two or three populations of NPs are formed within milliseconds upon mixing the components, which differ in the mean size, extent of polymer coating, and time stability. These characteristics are primarily controlled by the PMHT-Br to Ag-NPs ratio. Population of single NPs of a mean size of ∼5 nm is present in every system and is mostly stable for a long time. At low ratios, the single NPs are most probably almost free of polymer chains and the second population includes slow, but in a limited extent, growing NPs in which single NPs might be interconnected by polymer chains. At the ratios corresponding to the charge balance in the system (ca. zero ζ-potential of NPs), the NPs aggregate, forming a second population that continuously grows in size, and finally undergo sedimentation. At the high ratios, three long-time stable populations of NPs are observed, having mean sizes of ca. 5, 13, and 35 nm; all NPs should be fully coated with PMHT-Br, giving them a positively charged stabilizing shell 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Jäger, Alessandro  |e verfasserin  |4 aut 
700 1 |a Steinhart, Miloš  |e verfasserin  |4 aut 
700 1 |a Pfleger, Jiří  |e verfasserin  |4 aut 
700 1 |a Vohlídal, Jiří  |e verfasserin  |4 aut 
700 1 |a Bondarev, Dmitrij  |e verfasserin  |4 aut 
700 1 |a Štěpánek, Petr  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Langmuir : the ACS journal of surfaces and colloids  |d 1985  |g 32(2016), 1 vom: 12. Jan., Seite 2-11  |w (DE-627)NLM098181009  |x 1520-5827  |7 nnas 
773 1 8 |g volume:32  |g year:2016  |g number:1  |g day:12  |g month:01  |g pages:2-11 
856 4 0 |u http://dx.doi.org/10.1021/acs.langmuir.5b03365  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_22 
912 |a GBV_ILN_350 
912 |a GBV_ILN_721 
951 |a AR 
952 |d 32  |j 2016  |e 1  |b 12  |c 01  |h 2-11