Colloidal Interactions and Self-Assembly Using DNA Hybridization
نویسندگان
چکیده
منابع مشابه
Colloidal interactions and self-assembly using DNA hybridization.
The specific binding of complementary DNA strands has been suggested as an ideal method for directing the controlled self-assembly of microscopic objects. We report the first direct measurements of such DNA-induced interactions between colloidal microspheres, as well as the first colloidal crystals assembled using them. The interactions measured with our optical tweezer method can be modeled in...
متن کاملSelf-assembly and hybridization mechanisms of DNA with cationic polythiophene.
The combination of DNA and π-conjugated polyelectrolytes (CPEs) represents a promising approach to develop DNA hybridization biosensors, with potential applications for instance in the detection of DNA lesions and single-nucleotide polymorphisms. Here we exploit the remarkable optical properties of a cationic poly[3-(6'-(trimethylphosphonium)hexyl)thiophene-2,5-diyl] (CPT) to decipher the self-...
متن کاملUsing DNA to program the self-assembly of colloidal nanoparticles and microparticles
Deoxyribonucleic acid (DNA) is not just the stuff of our genetic code; it is also a means to design self-assembling materials. Grafting DNA onto nanoand microparticles can, in principle, “program” them with information telling them exactly how to self-assemble. Although fully programmable assembly has not yet been realized, the groundwork has been laid: with an understanding of how specific int...
متن کاملMolecular recognition and self-assembly special feature: Assembly and organization processes in DNA-directed colloidal crystallization.
We present an analysis of the key steps involved in the DNA-directed assembly of nanoparticles into crystallites and polycrystalline aggregates. Additionally, the rate of crystal growth as a function of increased DNA linker length, solution temperature, and self-complementary versus non-self-complementary DNA linker strands (1- versus 2-component systems) has been studied. The data show that th...
متن کاملColloidal Crystals-Self-Assembly of Monodispersed Colloidal Particles-
Colloidal crystals are three-dimensionally periodic lattices assembled from monodispersed spherical colloids. The ability to crystallize spherical colloids into spatially periodic structures has enabled interesting and often useful functionality not only from the constituent colloidal particles, but also from the long-range order exhibited by these periodic structures. A variety of methods by w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.94.058302