United States of America As Represented by the Secretary of the Air Force

The United States of America As Represented by the Secretary of the United States

Barry L Farmer

Rajesh R Naik

Fred E Arnold, Jr

Thuy D Dang

James Gerard Grote

Narayanan Venkatasubramanian

Jar-Wha Lee

Soo-Young Park

Steve S Kim

Zhifeng Kuang

Sang N Kim

A biosensor that utilizes carbon nanotubes functionalized with a protein sequence. One domain of the multifunctional peptide sequence noncovalently binds to the surface of single-walled carbon nanotubes (SWNTs), while a second domain of the sequence recognizes and binds to a target molecule. The sequence of the peptide may be tailored to allow it to recognize and bind to specific target molecules, such as chemicals, biological materials, and explosives. The binding of the target molecule to the peptide may alter a material property of the SWNTs.

Carbon nanotube sensors employing synthetic multifunctional peptides for surface functionalization

An improved method for enriched chirality of single wall carbon nanotubes is described. Genomic DNA, particularly salmon DNA (SaDNA) is shown to sort out single wall carbon nanotubes of specific chirality by a process of solubilization (dissolving in solution) and separation (such as centrifuging), without requiring more complex processes such as anion exchange chromatography. A possible reason for enhanced chirality separation using DNA may be attributed to its lowered GC (guanine-cytosine) content.

Enrichment of specific chirality single wall carbon nanotubes with genomic DNA

A benzobisazole polymer having repeating units of the formula:wherein Q isand wherein Z is &#x2014;O&#x2014;, &#x2014;S&#x2014; or &#x2014;NH&#x2014;. A new method for preparing 1,5-naphthalenedicarboxylic acid from 1,5-diaminonaphthalene under relatively mild conditions in good yields is also described.

Rigid-rod benzobisazole polymers incorporating naphthalene-1,5-diyl structure units

Growing community of inventors

Xenia, OH, United States of America

Barry L Farmer