Surrey, A Pohl, D Schultz, L Rellinghaus, B
Published in
Nano letters
We present a method that allows for a quantitative measurement of the surface self-diffusion on nanostructures, such as nanoparticles, at the atomic scale using aberration-corrected high-resolution transmission electron microscopy (HRTEM). The diffusion coefficient can be estimated by measuring the fluctuation of the atom column occupation at the s...
Hu, Hui Ni, Yingchun Montana, Vedrana Haddon, Robert C Parpura, Vladimir
Published in
Nano letters
We report the use of chemically modified carbon nanotubes as a substrate for cultured neurons. The morphological features of neurons that directly reflect their potential capability in synaptic transmission are characterized. The chemical properties of carbon nanotubes are systematically varied by attaching different functional groups that confer k...
Wang, Xudong Summers, Christopher J Wang, Zhong Lin
Published in
Nano letters
An effective approach is demonstrated for growing large-area, hexagonally patterned, aligned ZnO nanorods. The synthesis uses a catalyst template produced by a self-assembled monolayer of submicron spheres and guided vapor-liquid-solid (VLS) growth on a single crystal alumina substrate. The ZnO nanorods have uniform shape and length, align vertical...
Shu, Dan Moll, Wulf-Dieter Deng, Zhaoxiang Mao, Chengde Guo, Peixuan
Published in
Nano letters
DNA and protein have been extensively scrutinized for feasibility as parts in nanotechnology, but another natural building block, RNA, has been largely ignored. RNA can be manipulated to form versatile shapes, thus providing an element of adaptability to DNA nanotechnology, which is predominantly based upon a double-helical structure. The DNA-packa...
Didenko, Vladimir V Minchew, Candace L Shuman, Stewart Baskin, David S
Published in
Nano letters
The design of artificial molecular machines is complicated because the mechanics used in macromachines is not readily adaptable for nano environments. We constructed a semi-artificial molecular device, which contains a naturally occurring molecular machine-a vaccinia virus encoded protein-linked with an artificial part. The self-assembled construct...
Ng, Pei-Sze Bergstrom, Donald E
Published in
Nano letters
Complementary locked nucleic acid (LNA) and peptide nucleic acid (PNA) hexamers bind to each other with significantly higher affinity than each binds to DNA, and with far greater affinity than DNA binds to complementary DNA. The hybridization is highly specific with a single mismatch causing decreases in T(m) values ranging from 12 (G/T) to 30 degr...
Su, Xing Zhang, Jingwu Sun, Lei Koo, Tae-Woong Chan, Selena Sundararajan, Narayan Yamakawa, Mineo Berlin, Andrew A
Published in
Nano letters
To obtain a coding system for multiplex detection, we have developed a method to synthesize a new type of nanomaterial called composite organic-inorganic nanoparticles (COINs). The method allows the incorporation of a broad range of organic compounds into COINs to produce surface enhanced Raman scattering (SERS)-like spectra that are richer in vari...
Zayats, Maya Baron, Ronan Popov, Inna Willner, Itamar
Published in
Nano letters
The H(2)O(2)-mediated enlargement of Au nanoparticles (NPs) and the growth mechanism are described. In addition to the deposition of gold on the NP faces, the formation of nanocrystalline clusters at the intersection of the faces is observed. The detachment of the latter nanoclusters provides additional seeds for the deposition of gold. The biocata...
Rossato, Jussane Baierle, R J Fazzio, A Mota, R
Published in
Nano letters
The electronic and structural properties of a single-walled carbon nanotube (SWNT) under mechanical deformation are studied using first-principles calculations based on the density functional theory. A force is applied over one particular C-atom with enough strength to break the chemical bonds between the atom and its nearest neighbors, leading to ...
Endo, Morinobu Koyama, Shozo Matsuda, Yoshikazu Hayashi, Takuya Kim, Yoong-Ahm
Published in
Nano letters
Here we describe the fabrication of nanocomposite-based microcatheter through-melt extrusion utilizing high-purity carbon nanotubes as filler and nylon as matrix. Homogeneous dispersion of carbon nanotubes in nylon can provide novel microcatheters with enhanced mechanical properties (easier to handle) and extremely reduced thrombogenicity or antith...
