| 초록 |
Encapsulation of noble-metal nanoparticles within dielectric matrix has been challenged to develop opto-electric response system. By employing an amyloidogenic protein of α-synuclein and its two different cysteine mutants (A53C and Y136C), we prepared protein-coated assembly units of gold-nanoparticles (AuNPs). These units were aligned into either anisotropic one-dimensional (1-D) chain or tightly packed monodispersed two-dimensional (2-D) array on a glass support by using hexane-or pH-induced structural rearrangement within the protein layer. Not only these approaches, therefore, offer a facile and general way to align noble-metal nanoparticles into either 1-D or 2-D structures, but also the properties like specific chemical ligand binding, electrical insulation, rich chemistry for modifications, and biocompatibility provided by the protein sheath make the resulting nanostructures multifunctional photoelectric fusion nanomaterials suitable for future nanobiotechnology applications. |
