International Business Machines Corporation

Aselsan Elektronik Sanayi Ve Ticaret A.s.

Aselsan

Leslie E Thompson

Hareem Tariq Maune

Ho-Cheol Kim

Esin Akca

Gokhan Demirci

Cagla Akgun

Dahyun Oh

Loza F Tadesse

Shu-Jen Han

Linda Karin Sundberg

Charles Thomas Rettner

Hoa D Truong

Brian Lin

A method of preparing a porous sheet includes mixing a matrix material dispersion including a matrix material dispersed in a first dispersion medium with a microorganism dispersion including microorganisms in a second dispersion medium, to form a mixture. The first and the second dispersion media are removed from the mixture to form a matrix sheet, and the microorganisms are decomposed from the matrix sheet to form the porous sheet.

Porous sheets and method of making same from porous carbon nanotubes and decomposing microorganisms

Porous sheets

A crosslinked self-assembled monolayer (SAM), comprising surface groups containing a nitrogen-heterocycle, was formed on an oxygen plasma-treated silicon oxide or hafnium oxide top surface of a substrate. The SAM is covalently bound to the underlying oxide layer. The SAM was patterned by direct write methods using ultraviolet (UV) light of wavelength 193 nm or an electron beam, forming a line-space pattern comprising non-exposed SAM features. The non-exposed SAM features non-covalently bound DNA-wrapped carbon nanotubes (DNA-CNT) deposited from aqueous solution with a selective placement efficiency of about 90%. Good alignment of carbon nanotubes to the long axis of the SAM features was also observed. The resulting patterned biopolymer features were used to prepare a CNT based field effect transistor.

Nitrogen heterocycle-containing monolayers on metal oxides for binding biopolymers

Growing community of inventors

San Jose, CA, United States of America

Leslie E Thompson