Hierarchical assembly of diphenylalanine into dendritic nanoarchitectures.
Highly ordered, multi-dimensional dendritic nanoarchitectures were created via self-assembly of diphenylalanine from an acidic buffer solution. The self-similarity of dendritic structures was characterized by examining their fractal dimensions with the box-counting method. The fractal dimension was determined to be 1.7, which demonstrates the fractal dimension of structures generated by diffusion limited aggregation on a two-dimensional substrate surface. By confining the dendritic assembly of diphenylalanine within PDMS microchannels, the self-similar dendritic growth could be hierarchically directed to create linearly assembled nanoarchitectures. Our approach offers a novel pathway for creating and directing hierarchical nanoarchitecture from biomolecular assembly.
Han
Tae Hee
TH
Department of Materials Science and Engineering, KI for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
Oh
Jun Kyun
JK
Lee
Gyoung-Ja
GJ
Pyun
Su-Il
SI
Kim
Sang Ouk
SO
D002021:Buffers; D050091:Dendrimers / Q000737:chemistry*; D004151:Dipeptides; D017709:Fractals; D006863:Hydrogen-Ion Concentration; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D009391:Nephelometry and Turbidimetry; D010455:Peptides / Q000737:chemistry; D010649:Phenylalanine / Q000031:analogs & derivatives* / Q000737:chemistry; D012996:Solutions
D002021:Buffers; D050091:Dendrimers; D004151:Dipeptides; D010455:Peptides; D012996:Solutions; C026650:phenylalanylphenylalanine; D010649:Phenylalanine