摘要
Noble metal nanoparticles,such as gold or silver nanoparticles and nanorods,exhibit unique photonic,electronic and catalytic properties.Functionalization of noble metal nanoparticles with biomolecules(e.g.,protein and DNA) produces systems that possess numerous applications in catalysis,delivery,therapy,imaging,sensing,constructing nanostructures and controlling the structure of biomolecules.In this paper,the recent development of noble metal nanoparticle-biomolecule conjugates is reviewed from the following three aspects:(1) synthesis of noble metal nanoparticle-biomolecule systems by electrostatic adsorption,direct chemisorption of thiol derivatives,covalent binding through bifunctional linkers and specific affinity interactions;(2) the photonic properties and bioactivation of noble metal nanoparticle-biomolecule conjugates;and(3) the optical applications of such systems in biosensors,and medical imaging,diagnosis,and therapy.The conjugation of Au and Ag nanoparticles with biomolecules and the most recent optical applications of the resulting systems have been focused on.
Noble metal nanoparticles, such as gold or silver nanoparticles and nanorods, exhibit unique photonic, electronic and catalytic properties. Functionalization of noble metal nanoparticles with biomolecules （e.g., protein and DNA） produces systems that pos- sess numerous applications in catalysis, delivery, therapy, imaging, sensing, constructing nanostructures and controlling the structure of biomolecules. In this paper, the recent development of noble metal nanoparticle-biomolecule conjugates is reviewed from the following three aspects： （1） synthesis of noble metal nanoparticle-biomolecule systems by electrostatic adsorption, direct chemisorption of thiol derivatives, covalent binding through bifunctional linkers and specific affinity interactions; （2） the photonic properties and bioactivation of noble metal nanoparticle-biomolecule conjugates; and （3） the optical applications of such systems in biosensors, and medical imaging, diagnosis, and therapy. The conjugation of Au and Ag nanoparticles with biomolecules and the most recent optical applications of the resulting systems have been focused on.
基金
supported by the China-MOST International Science & Technology Cooperation and Exchange Project (2008DFA51230)
National Basic Research Program of China (2007CB936603)
National Natural Science Foundation of China (11074207 and 60776007)
