2014
DOI: 10.1002/ange.201404100
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Polyvinylalkohol als biokompatibles Polymer zur Passivierung von Goldnanostäbchen

Abstract: Die Oberflächenfunktionalisierung von Goldnanostäbchen mit Polymeren ist aufgrund der daraus resultierenden kolloidalen Stabilität und der Bioverträglichkeit der Nanopartikel von großer Bedeutung. Die normalerweise vorhandene toxische Doppelschicht aus dem kationische Tensid Cetyltrimethylammoniumbromid (CTAB), das an die Oberfläche der Nanostäbchen adsorbiert ist, erschwert diesen Prozess jedoch erheblich. Nachstehend erläutern wir eine Strategie zur biokompatiblen Funktionalisierung der Nanostäbchen mit hydr… Show more

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“…However, the surface chemistry of gold nanorods is more complex than that of spheres due to the presence of strongly bound CTAB meaning ligand exchange is not straightforward. [52][53] To address this issue, we developed a route to negatively charged gold nanorods without the use of thiolated polymers such as mercapto-PEG. Firstly, polyvinylpyrrolidone was used to stabilize the nanorods in organic solvents before undergoing ligand exchange with mercaptoundecanoic acid over extended times (Supporting Information).…”
Section: Well Dimension and Ionic Strengthmentioning
confidence: 99%
“…However, the surface chemistry of gold nanorods is more complex than that of spheres due to the presence of strongly bound CTAB meaning ligand exchange is not straightforward. [52][53] To address this issue, we developed a route to negatively charged gold nanorods without the use of thiolated polymers such as mercapto-PEG. Firstly, polyvinylpyrrolidone was used to stabilize the nanorods in organic solvents before undergoing ligand exchange with mercaptoundecanoic acid over extended times (Supporting Information).…”
Section: Well Dimension and Ionic Strengthmentioning
confidence: 99%