Clark School Home UMD

ISR News Story

Shampoo ingredient keeps nanotubes cleaner, more manageable

Want cleaner, fresher looking nanotubes for that important experiment? No more clumping or flyways when you use ammonium laurate, which contains a compound common in shampoo, says a graduate student in the University of Maryland's Department of Materials Science and Engineering.

Researcher Hanna Nilsson substituted ammonium laurate for SDS, right now the industry standard for keeping the long thin strands of nanotubes separate so that they can be studied individually or piled together neatly.

"The benefit of cleaner nanotube deposition is that their native properties can be used in applications," Nilsson said. "One example we show in the paper is that nanotubes deposited with AL have better electrical contact with metal than those deposited with SDS."

The problem with SDS is that it leaves behind a soapy residue. Nilsson’s tests with ammonium laurate show that this molecule has a structure that doesn't reform once the solution has been deposited and can instead be washed away with water.

SDS is also in grocery stores too – it’s found in toothpaste, shaving cream and bubble bath.


Ammonium laurate surfactant for cleaner deposition of carbon nanotubes

Nilsson et al, Langmuir, Just Accepted Manuscript

DOI: 10.1021/acs.langmuir.5b01175

Publication Date (Web): May 28, 2015

June 15, 2015


Prev   Next

 

 

Current Headlines

Gabriel gives keynote address at First International Conference on the Economics of Natural Gas

Sarah Bergbreiter wins ISR Outstanding Faculty Award

Ayan Mallik wins ISR Graduate Student Award

Three ISR graduate students win new travel award

Alexis Jenkins wins ISR staff award

UMD Opens Outdoor Flight Laboratory to Advance Autonomy, Robotics

Salamanca-Riba Appointed 2017/2018 UMD ADVANCE Professor 

Raghavan writes article on teaching for OR/MS Today magazine

Clark School names Hamid Jafarkhani 2017 IHOF Inductee

Relive Totality With Clark School Images, Videos

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar