Abstract
We have synthesized the monodisperse large silver nanoparticles with a variety of controlled shapes and sizes using poly (sodium 4-styrene sulfonate) as a structure-directing reagent. We have demonstrated that the molecular weight (70K, 200K and 1000K) and concentration of the polymer can effectively and systematically control the silver nanoparticle structures that are strongly associated with the unique optical properties based upon their surface nanostructures. The crystalline structures of the particles have been further analyzed by diffraction methods. Importantly, the silver nanoparticles can be functionalized with DNA for reversible assembly formation with complementary DNA-gold nanoparticle conjugates, demonstrating that these novel structures can be utilized as smart probes and functional platforms for diagnostic and therapeutic applications. The reversibility of the bimetallic assembly is confirmed by the thermal denaturation.
| Original language | English |
|---|---|
| Pages (from-to) | 118-121 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 68 |
| DOIs | |
| Publication status | Published - 2012 Feb 1 |
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Keywords
- Assembly
- Crystal growth
- DNA
- Functional
- Microstructure
- Polymers
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Mechanics of Materials
Cite this
Controlled structural evolution of large silver nanoparticles and their DNA-Mediated bimetallic reversible assemblies. / Kim, Ge Ah; Han, Sang Hun; Lee, Jae-Seung.
In: Materials Letters, Vol. 68, 01.02.2012, p. 118-121.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Controlled structural evolution of large silver nanoparticles and their DNA-Mediated bimetallic reversible assemblies
AU - Kim, Ge Ah
AU - Han, Sang Hun
AU - Lee, Jae-Seung
PY - 2012/2/1
Y1 - 2012/2/1
N2 - We have synthesized the monodisperse large silver nanoparticles with a variety of controlled shapes and sizes using poly (sodium 4-styrene sulfonate) as a structure-directing reagent. We have demonstrated that the molecular weight (70K, 200K and 1000K) and concentration of the polymer can effectively and systematically control the silver nanoparticle structures that are strongly associated with the unique optical properties based upon their surface nanostructures. The crystalline structures of the particles have been further analyzed by diffraction methods. Importantly, the silver nanoparticles can be functionalized with DNA for reversible assembly formation with complementary DNA-gold nanoparticle conjugates, demonstrating that these novel structures can be utilized as smart probes and functional platforms for diagnostic and therapeutic applications. The reversibility of the bimetallic assembly is confirmed by the thermal denaturation.
AB - We have synthesized the monodisperse large silver nanoparticles with a variety of controlled shapes and sizes using poly (sodium 4-styrene sulfonate) as a structure-directing reagent. We have demonstrated that the molecular weight (70K, 200K and 1000K) and concentration of the polymer can effectively and systematically control the silver nanoparticle structures that are strongly associated with the unique optical properties based upon their surface nanostructures. The crystalline structures of the particles have been further analyzed by diffraction methods. Importantly, the silver nanoparticles can be functionalized with DNA for reversible assembly formation with complementary DNA-gold nanoparticle conjugates, demonstrating that these novel structures can be utilized as smart probes and functional platforms for diagnostic and therapeutic applications. The reversibility of the bimetallic assembly is confirmed by the thermal denaturation.
KW - Assembly
KW - Crystal growth
KW - DNA
KW - Functional
KW - Microstructure
KW - Polymers
UR - http://www.scopus.com/inward/record.url?scp=80855132447&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80855132447&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2011.10.058
DO - 10.1016/j.matlet.2011.10.058
M3 - Article
AN - SCOPUS:80855132447
VL - 68
SP - 118
EP - 121
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -