functionalization – Page 3 – TechConnect Briefs

Optimizing nanoparticle functionalization for quantum dot formation

Hooper J.B., Bedrov D., Smith G.D., Kim H., University of Utah, US

Utilizing state-of-the-art molecular dynamics simulation techniques, we have developed a methodology for determining the gross functionalization parameters required to promote formation of small, compact, and stable nanoparticle clusters in aqueous solutions. The ultimate goal of [...]

Cytotoxic Effects of Short Multi-wall Carbon Nanotubes

Agharkar V.A., Bhushan A., Lai J.C.K., Daniels C.K., Idaho State University, US

The applications of carbon nanotubes (CNTs), a novel and important class of nanomaterials, can change paradigms of various research areas. Although biomedical applications of CNTs are increasing, their putative cytotoxicity has not been substantially addressed. [...]

Polyurethane Nanocomposites Containing NCO-Functionalized Carbon Nanotubes and NCO-Functionalized Nanoclays

Nguyen T., Granier A., Pellegrin B., Celina M., NIST, US

Mechanical property, UV resistance, and oxygen permeation performance of automobile polyurethane (PU) coating containing NCO-functionalized (MWCNTs and nanoclays) have been measured. A novel method was used to functionalize CNTs and nanoclays using a diisocyanate in [...]

Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants

Mattigod S.V., Fryxell G.E., Skaggs R., Parker K.E., Pacific Northwest National laboratory, US

A new class of high-performance nanoporous sorbents has been developed for heavy metal removal that overcomes the deficiencies of existing technologies. These novel materials are created from a combination of synthetic mesoporous ceramic substrates that [...]

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 [...]

Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants

Mattigod S.V., Fryxell G.E., Skaggs R., Parker K.E., Pacific Northwest National laboratory, US

A new class of high-performance nanoporous sorbents has been developed for heavy metal removal that overcomes the deficiencies of existing technologies. These novel materials are created from a combination of synthetic mesoporous ceramic substrates that [...]

Noncovalent Engineering of Carbon Nanotube Surfaces

Chen J., Ramasubramaniam R., Liu H., Zyvex Corporation, US

Single-walled carbon nanotubes (SWNTs), due to their novel structural, thermal, electrical, mechanical and optical properties, are expected to find applications in many fields. Pristine SWNTs are generally insoluble in common solvents, and difficult to functionalize [...]

Sidewall Functionalization of Single-Walled Carbon Nanotubes through C-N Bond Forming Substitution Reactions of Fluoronanotubes

Stevens J., Kini V.U., Huang A., Chiang I.W., Derrien G.A., Khabashesku V.N., Margrave J.L., Rice University, US

Because of the high reactivity of C-F bonds on the sidewalls of single-wall carbon nanotubes, fluorinated SWNTs (fluoronanotubes) can be used as precursors for further derivatization. One such reaction is to replace the fluorine with [...]