TY  - JOUR
A1  - Thete, Aniket
A1  - Rojas, Oscar
A1  - Neumeyer, David
A1  - Koetz, Joachim
A1  - Dujardin, Erik
T1  - Ionic liquid-assisted morphosynthesis of gold nanorods using polyethyleneimine-capped seeds
JF  - RSC Advances
N2  - Seed-mediated gold nanorods with tunable lengths are prepared using new polyethyleneimine-capped gold nanoparticles synthesized in ionic liquid. The effect of polyethyleneimine and ionic liquid during nanorod growth is investigated and shows a marked effect on their final aspect ratio.
Y1  - 2013
U6  - https://doi.org/10.1039/c3ra22112a
SN  - 2046-2069
VL  - 3
IS  - 34
SP  - 14294
EP  - 14298
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Thete, Aniket
A1  - Rojas, Oscar
A1  - Neumeyer, David
A1  - Koetz, Joachim
A1  - Dujardin, Erik
T1  - Ionic liquid-assisted morphosynthesis of gold nanorods using polyethyleneimine-capped seeds
N2  - Seed-mediated gold nanorods with tunable lengths are prepared using new polyethyleneimine-capped gold nanoparticles synthesized in ionic liquid. The effect of polyethyleneimine and ionic liquid during nanorod growth is investigated and shows a marked effect on their final aspect ratio.
Y1  - 2013
UR  - http://pubs.rsc.org/en/content/articlepdf/2013/ra/c3ra22112a
U6  - https://doi.org/10.1039/C3RA22112A
ER  - 
TY  - GEN
A1  - Thete, Aniket
A1  - Rojas, Oscar
A1  - Neumeyer, David
A1  - Koetz, Joachim
A1  - Dujardin, Erik
T1  - Ionic liquid-assisted morphosynthesis of gold nanorods using polyethyleneimine-capped seeds
N2  - Seed-mediated gold nanorods with tunable lengths are prepared using new polyethyleneimine-capped gold nanoparticles synthesized in ionic liquid. The effect of polyethyleneimine and ionic liquid during nanorod growth is investigated and shows a marked effect on their final aspect ratio.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 245 
KW  - aqueous-solution
KW  - aspect-ratio
KW  - cationic surfactants
KW  - chemical-synthesis
KW  - delivery
KW  - metal nanoparticles
KW  - mixtures
KW  - shape
KW  - silver nanowires
KW  - surface-plasmon resonance
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-95196
SP  - 14294
EP  - 14298
ER  - 
TY  - JOUR
A1  - Rojas, Oscar
A1  - Tiersch, Brigitte
A1  - Rabe, Christian
A1  - Stehle, Ralf
A1  - Hoell, Armin
A1  - Arlt, Bastian
A1  - Koetz, Joachim
T1  - Nonaqueous Microemulsions Based on N,N '-Alkylimidazolium Alkylsulfate Ionic Liquids
JF  - Langmuir
N2  - The ternary system composed of the ionic liquid surfactant (IL-S) 1-butyl-3-methylimidazolium dodecylsulfate ([Bmim][DodSO(4)]), the room temperature ionic liquid (RTIL) 1-ethyl-3-methylimidazolium ethylsulfate ([Emim][EtSO4]), and toluene has been investigated. Three major mechanisms guiding the structure of the isotropic phase were identified by means of conductometric experiments, which have been correlated to the presence of oil-in-IL, bicontinuous, and IL-in-oil microemulsions. IL-S forms micelles in toluene, which swell by adding RTIL as to be shown by dynamic light scattering (DLS) and small-angle X-ray scattering (SAXS) experiments. Therefore, it is possible to form water free IL-in-oil reverse microemulsions <= 10 nm in size as a new type of nanoreactor.
Y1  - 2013
U6  - https://doi.org/10.1021/la401080q
SN  - 0743-7463
VL  - 29
IS  - 23
SP  - 6833
EP  - 6839
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Dolya, Natalya
A1  - Rojas, Oscar
A1  - Kosmella, Sabine
A1  - Tiersch, Brigitte
A1  - Koetz, Joachim
A1  - Kudaibergenov, Sarkyt
T1  - "One-Pot" in situ frmation of Gold Nanoparticles within Poly(acrylamide) Hydrogels
JF  - Macromolecular chemistry and physics
N2  - This paper focuses on two different strategies to incorporate gold nanoparticles (AuNPs) into the matrix of polyacrylamide (PAAm) hydrogels. Poly(ethyleneimine) (PEI) is used as both reducing and stabilizing agent for the formation of AuNPs. In addition, the influence of an ionic liquid (IL) (i.e., 1-ethyl-3-methylimidazolium ethylsulfate) on the stability of the nanoparticles and their immobilization in the hydrogel is investigated The results show that AuNPs surrounded by a shell containing PEI and IL, synthesized according to the one-pot approach, are much better immobilized within the PAAm hydrogel. Hereby, the IL is responsible for structural changes in the hydrogel as well as the improved stabilization and embedding of the AuNPs into the polymer gel matrix.
KW  - gold nanoparticles
KW  - immobilization
KW  - ionic liquids
KW  - poly(acrylamide) hydrogels
Y1  - 2013
U6  - https://doi.org/10.1002/macp.201200727
SN  - 1022-1352
VL  - 214
IS  - 10
SP  - 1114
EP  - 1121
PB  - Wiley-VCH
CY  - Weinheim
ER  -