Now showing items 1-6 of 6
Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes
Single-walled carbon-nanotube (SWCNT) arrays are generated on catalyst patterns with controlled location, orientation, and spacing using a straightforward approach. Dip-pen nanolithography is used to fabricate catalyst ...
Template-directed growth of nanostructures
The controlled growth and alignment of carbon nanotubes and peptide nanoarrays offers new avenues for nanodevice fabrication. Creating intricate nanoelectronic devices requires the precise patterning of carbon nanotube ...
Visual cocaine detection with gold nanoparticles and rationally engineered aptamer structures
A novel bioassay strategy is designed to detect small-molecule targets such as cocaine, potassium, and adenosine, based on gold nanoparticles (AuNPs) and engineered DNA aptamers. In this design, an aptamer is engineered ...
Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions
Molecular wires are covalently bonded to gold electrodes—to form metal–molecule–metal junctions—by functionalizing each end with a SH group. The conductance of a wide variety of molecular junctions is studied theoretically ...
Cadmium telluride nanocrystals : synthesis, growth mode and effect of reaction temperature on crystal structures
A series of cadmium telluride (CdTe) nanocrystals were synthesized by a modified organometallic synthesis method at various reaction temperatures ranging from 130 to 250°C. In this method, octadecylamine (ODA) was introduced ...
Controlled growth of peptide nanoarrays on Si/SiOx substrates
PAMAM dendrimer nanopatterns on Si/ SiOx substrates generated by dip-pen nanolithography are used as anchoring scaffolds for the growth of peptides in situ by ring-opening polymerization of tryptophan-N-carboxyanhydrides. ...