Optical Enhancement and Structural Properties of a Hybrid Organic-Inorganic Ternary Nanocomposite

被引：21

作者：

Villari, Valentina ^{[1
]}

Mazzaglia, Antonino ^{[2
]}

Trapani, Mariachiara ^{[3
]}

Castriciano, Maria Angela ^{[2
]}

de Luca, Giovanna ^{[5
]}

Romeo, Andrea ^{[3
,4
]}

Scolaro, Luigi Monsu ^{[3
,4
]}

Micali, Norberto ^{[1
]}

机构：

[1] CNR IPCF Ist & Proc Chim Fis, I-98158 Messina, Italy

[2] CNR ISMN Ist Studio Mat Nanostrutturati, I-98166 Messina, Italy

[3] Univ Messina, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy

[4] CIRCMSB, Messina, Italy

[5] CNR IMCB Ist Mat Compositi & Biomed, I-80125 Naples, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 13期

关键词：

SMALL-PARTICLE COMPOSITES; DYNAMIC LIGHT-SCATTERING; GOLD NANOPARTICLES; PHOTOTHERMAL THERAPY; PORPHYRIN; WATER; AGGREGATION; SIZE; NANOSTRUCTURES; LOCALIZATION;

D O I：

10.1021/jp110966h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The assembly among gold nanoparticles, the water-soluble tetrakis(4-sulfonatophenyl)porphyrin and spermine, in acidic solution, forms a hybrid nanocomposite exhibiting scattering enhancement. A scaling law of a cluster-cluster aggregate of metal nanoparticle composites, with 0.3 as optical spectral dimension, is observed in agreement with theoretical models. In this ternary composite, spermine acts as a sticky agent for gold nanoparticles and porphyrins, and the dipolar coupling between porphyrins is responsible for the localization of the electric field giving rise to the scattering enhancement.

引用

页码：5435 / 5439

页数：5

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