In situ modification of the surface of gold colloidal particles. Preparation of cyclodextrin-based rotaxanes supported on gold nanospheres

被引：84
作者：
Liu, J
Xu, RL
Kaifer, AE [1 ]
机构：
[1] Univ Miami, Supramol Sci Ctr, Coral Gables, FL 33124 USA
[2] Univ Miami, Dept Chem, Coral Gables, FL 33124 USA
[3] Beckman Coulter, Particle Characterizat, Miami, FL 33116 USA
来源：
LANGMUIR | 1998年 / 14卷 / 26期
关键词：
D O I：
10.1021/la981385q
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new method for the surface derivatization of gold colloidal particles is reported. The method is based on the aqueous solubilization of aliphatic thiols by alpha-cyclodextrin, which effectively binds to the aliphatic chains and carries the hydrophobic thiol molecules to the surface of the gold particles, where they undergo chemisorption. This method can be used to prepare gold colloidal particles (diameter > 10 nm) modified with long chain alkanethiolates. if the alkanethiol contains a bulky terminal group, such as ferrocene, the alpha-cyclodextrin host is trapped after surface attachment, yielding cyclodextrin-based rotaxanes supported on the gold nanospheres.
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收藏
页码：7337 / 7339
页数：3
相关论文
共 37 条
[1]   Interlocked and intertwined structures and superstructures [J].
Amabilino, DB ;
Stoddart, JF .
CHEMICAL REVIEWS, 1995, 95 (08) :2725-2828
[2]   Self-assembly of a two-dimensional superlattice of molecularly linked metal clusters [J].
Andres, RP ;
Bielefeld, JD ;
Henderson, JI ;
Janes, DB ;
Kolagunta, VR ;
Kubiak, CP ;
Mahoney, WJ ;
Osifchin, RG .
SCIENCE, 1996, 273 (5282) :1690-1693
[3]   High-resolution time-of-flight mass spectra of alkanethiolate-coated gold nanocrystals [J].
Arnold, RJ ;
Reilly, JP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (07) :1528-1532
[4]   Structure and dynamics in alkanethiolate monolayers self-assembled on gold nanoparticles: A DSC, FT-IR, and deuterium NMR study [J].
Badia, A ;
Cuccia, L ;
Demers, L ;
Morin, F ;
Lennox, RB .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (11) :2682-2692
[5]   Structure and chain dynamics of alkanethiol-capped gold colloids [J].
Badia, A ;
Gao, W ;
Singh, S ;
Demers, L ;
Cuccia, L ;
Reven, L .
LANGMUIR, 1996, 12 (05) :1262-1269
[6]   Dendrimer-modified silicon oxide surfaces as platforms for the deposition of gold and silver colloid monolayers: Preparation method, characterization, and correlation between microstructure and optical properties [J].
Bar, G ;
Rubin, S ;
Cutts, RW ;
Taylor, TN ;
Zawodzinski, TA .
LANGMUIR, 1996, 12 (05) :1172-1179
[7]   Hydroxylamine seeding of colloidal Au nanoparticles in solution and on surfaces [J].
Brown, KR ;
Natan, MJ .
LANGMUIR, 1998, 14 (04) :726-728
[8]   Convenient preparation of stable, narrow-dispersity, gold nanocrystals by ligand exchange reactions [J].
Brown, LO ;
Hutchison, JE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (50) :12384-12385
[9]   SYNTHESIS OF THIOL-DERIVATIZED GOLD NANOPARTICLES IN A 2-PHASE LIQUID-LIQUID SYSTEM [J].
BRUST, M ;
WALKER, M ;
BETHELL, D ;
SCHIFFRIN, DJ ;
WHYMAN, R .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (07) :801-802
[10]   Multisite inclusion complexation of redox active dendrimer guests [J].
Castro, R ;
Cuadrado, I ;
Alonso, B ;
Casado, CM ;
Moran, M ;
Kaifer, AE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (24) :5760-5761
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