SWNT – TechConnect Briefs

A Novel Compact Lab-on-a-Chip Nanosensor for In-Channel Liquid Viscosity Detection

Zhao J., Xu J., Xue W., Xue W., Washington State University Vancouver, US

Real-time monitoring of liquid’s viscosity has significant impacts on many areas such as medicine, biology and petrochemistry. However, most existing sensors have complicated fabrication and testing processes and are not truly compatible with fluidic systems [...]

Catalyst-Free Synthesis of Carbon Nanotubes with Low-Intensity Lasers

Krishna V., Koopman B., Moudgil B., University of Florida, US

We have discovered a novel method of synthesizing carbon nanostructures such as single-wall carbon nanotubes (SWNTs), multi-wall carbon nanotubes (MWNTs) and carbon onions. The advantages of our method include, catalyst-free synthesis of CNTs at room [...]

p-Type Single-Wall Garbon Nanotube Network on n-Type Si for Heterojunction Photovoltaic Cells

Li Z., Xu Y., Saini V., Dervishi E., Mahmood M., Biris A.R., Biris A.S., Biris A.R., Biris A.S., University of Arkansas at Little Rock, US

The solar cells based on high-density p-n heterojunctions between single wall carbon nanotubes (SWNTs) and n-type crystalline silicon were produced with airbrushing technique. The SWNTs/n-Si heterojunction is rectifying. Under optical excitation the numerous heterojunctions formed [...]

Unravelling the interaction of ammonia with carbon nanotubes

Oliva C., Strodel P., Goldbeck-Wood G., Maiti A., Accelrys, UK

Several modelling techniques have been used to understand the interaction of NH3 with SWNTs. QM/MM calculations and Monte Carlo searches of the adsorbate-substrate configuration space have been performed. Defects and bundle effects have been considered [...]

Monte Carlo Multi-Criteria Risk Analysis of Single Wall Carbon Nanotube Production Processes Under Uncertain Manufacturing Costs, Occupational Health Risks, and Regulatory Standards

Ok Z.D., Isaacs J.A., Benneyan J.C., Northeastern University, US

Considerable uncertainty exists regarding full-scale manufacturing costs, occupational risks, and probable future regulatory standards for various single wall carbon nanotube (SWNT) manufacturing processes. Monte Carlo models have been developed to investigate these implications and compare [...]

SWNTs inhibit normal physiological function of calcium ion channels through yttrium release

Jakubek L.M., Raingo J., Lipscombe D., Hurt R.H., Brown University, US

The calcium ion channel is a voltage gated channel that enables calcium to enter electrically active cells. Proper function of these channels is essential for gene expression, neuronal excitability, muscle contraction and the release of [...]

Conducting Polymer Nanocomposites: The Role of the Electronic Fingerprint of Carbon Nanotubes

Chiu P.L., Ma Y., Serrano A., Wang L., Mendelsohn R., He H., Rutgers University, US

In this presentation, we report that dispersion and functionalization of single-walled carbon nanotubes (SWNTs) with different dispersing methods and dispersing agents result different SWNTs with different electronic structures and surface chemistries. In-situ polymerization of the [...]

Water Soluble Conducting Polymer Nanocomposite: Toward Electronic Understanding the Catalytic Role of ss-DNA Functionalized Single Walled Carbon Nanotubes

Ma Y., Chiu P.L., Ali S.R., Serrano A., Chen A., He H., Rutgers University, US

Single-stranded DNA functionalized single-walled carbon nanotubes (ss-DNA/SWNTs) act as catalytic molecular templates during oxidative polymerization of self-doped polyaniline. We found that not only was the polymerization rate greatly enhanced, but also the quality of the [...]

Chemistry: The solution for making high performance SWNT-based materials

Simard B., National Research Council of Canada, CA

We explore the chemistry of reduced SWNT and show that it is more advantegous than the chemistry of neutral SWNT. In particular we will show a novel and cost saving functionalization procedureand how it leads [...]

Economic and Environmental Tradeoffs in SWNT Production

Healy M.L., Tanwani A., Isaacs J.A., Northeastern University, US

Assessment of economic and environmental attributes of nanomanufacturing during process development has significant potential to contribute to the quality and effectiveness of the processes, and will lead to development of competitive, safe and environmentally responsible [...]