Fabrication of highly oriented nanocluster arrays by biomolecular templating

被引:118
作者
Mertig, M [1 ]
Kirsch, R
Pompe, W
Engelhardt, H
机构
[1] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany
[2] Max Planck Inst Biochem, D-82152 Martinsried, Germany
关键词
D O I
10.1007/s100530050397
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The formation of highly oriented cluster arrays by chemical deposition of platinum onto a regular 2D protein template is studied. The crystalline bacterial surface layer (S layer) of Sporosarcina ureae exhibiting a p4 symmetry with a lattice spacing of 13.2 nm is used as the protein template. Cluster deposition onto the S layer is achieved by chemical reduction of a platinum salt. The growth kinetics of the clusters has been examined by UV-VIS spectrometry. Transmission electron microscopy reveals the formation of well separated metal clusters with an average diameter of 1.9 +/- 0.6 nm. The lateral cluster arrangement is defined by the underlying protein crystal. We observe 7 cluster sites per unit cell corresponding to a density of 4 x 10(12) cm(-2). They are located in the nano-sized pores and gaps of the crystalline S layer.
引用
收藏
页码:45 / 48
页数:4
相关论文
共 22 条
[1]  
[Anonymous], 1996, Crystalline bacterial cell surface proteins
[2]  
Baumeister W., 1987, ELECTRON MICROS, P109
[3]  
BREITWIESER A, 1996, BIOTECHNIQUES, V21, P46
[4]   ULTRAVIOLET VISIBLE ABSORPTION-SPECTRA OF THE COLLOIDAL METALLIC ELEMENTS [J].
CREIGHTON, JA ;
EADON, DG .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (24) :3881-3891
[5]   NANOMETER MOLECULAR LITHOGRAPHY [J].
DOUGLAS, K ;
CLARK, NA ;
ROTHSCHILD, KJ .
APPLIED PHYSICS LETTERS, 1986, 48 (10) :676-678
[6]   3-DIMENSIONAL STRUCTURE OF THE TETRAGONAL SURFACE-LAYER OF SPOROSARCINA-UREA [J].
ENGELHARDT, H ;
SAXTON, WO ;
BAUMEISTER, W .
JOURNAL OF BACTERIOLOGY, 1986, 168 (01) :309-317
[7]  
ENGELHARDT H, 1908, METHOD MICROBIOL, V20, P357
[8]   ABSORPTION-SPECTRUM AND SOME CHEMICAL-REACTIONS OF COLLOIDAL PLATINUM IN AQUEOUS-SOLUTION [J].
HENGLEIN, A ;
ERSHOV, BG ;
MALOW, M .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (38) :14129-14136
[9]   Three-dimensional metallization of microtubules [J].
Kirsch, R ;
Mertig, M ;
Pompe, W ;
Wahl, R ;
Sadowski, G ;
Bohm, KJ ;
Unger, E .
THIN SOLID FILMS, 1997, 305 (1-2) :248-253
[10]  
MANN S, 1996, BIOMIMETIC MAT CHEM, P1