Navigation Links
Strengthening fluids with nanoparticles

Troy, N.Y. Researchers at Rensselaer Polytechnic Institute have demonstrated that liquids embedded with nanoparticles show enhanced performance and stability when exposed to electric fields. The finding could lead to new types of miniature camera lenses, cell phone displays, and other microscale fluidic devices.

This study may open up a new vista for using nanofluids in microscale and nanoscale actuator device applications, said Theodorian Borca-Tasciuc, a professor of mechanical engineering at Rensselaer, who led the research project.

The manipulation of small volumes of liquid is critical for fluidic digital display devices, optical devices, and microelectromechanical systems (MEMS) such as lab-on-chip analysis systems. Most research into such systems has been conducted with regular liquids, but not nanofluids, which are liquids embedded with different nanoparticles. Nanofluids have been shown to exhibit some attractive properties, including enhanced heat transfer and capillary properties, as compared with regular, or pure, liquids.

Borca-Tasciucs team placed droplets of water-based solutions containing bismuth telluride nanoparticles onto a Teflon-coated silicon wafer. When an electric field was applied to the droplet, the researchers observed a strong change in the angle at which the droplet contacted the wafer. This change was much higher than that observed in liquids without the nanoparticles when tested under the same conditions.

You use the same electrical field, but you get more change in shape with the nanofluid. We know the nanoparticles are critical in this process because without them the effect is much less strong, Borca-Tasciuc said.

The ability to easily change the contact angle of droplets of nanofluids has potential applications for efficiently moving liquids in microsystems, creating new methods of focusing lenses in miniature cameras, or cooling computer chips. Borca-Tasciuc also envisions the research enabling new fully integrated micro- and nanoscale heat transfer systems that will not require a pump. Our proof of concept really opens up many new exciting possibilities, he said.

Borca-Tasciuc said his investigations into nanofluids are driven by sheer curiosity, and fostered by a strong interdisciplinary collaboration with Rensselaer Materials Science and Engineering Professor Ganapathiraman Ramanath.

At first, we were curious to see what would happen if we introduced charged nanostructures such as the ones we synthesize for exploring new cooling strategies in nanodevices to the process of liquid wetting. But what started as a single, one-off experiment has now mushroomed into an exciting new research topic and expanded the scope of our collaboration, Ramanath said


Contact: Michael Mullaney
Rensselaer Polytechnic Institute

Related biology technology :

1. DNA technique yields 3-D crystalline organization of nanoparticles
2. Anthrax vaccine produces immunity with nanoparticles, not needles
3. Anthrax vaccine produces immunity with nanoparticles, not needles
Post Your Comments:
Related Image:
Strengthening fluids with nanoparticles
(Date:10/11/2017)... , ... October 11, 2017 , ... ... the implantation and pregnancy rates in frozen and fresh in vitro fertilization ... progesterone and maternal age to IVF success. , After comparing the results from ...
(Date:10/10/2017)... , ... October 10, 2017 ... ... cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing ... HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s ...
(Date:10/10/2017)... Parks Associates announced today that Tom Kerber , Director ... , October 11 in Scottsdale, Arizona . Kerber will ... safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and the introduction of ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... recipients of 13 prestigious awards honoring scientists who have made ... in a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition ...
Breaking Biology Technology:
(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. ... have received the prestigious international IAIR Award for the most innovative ... ... Maldives Immigration ... Algeen (small picture on the right) have received the IAIR award for ...
(Date:3/23/2017)... , Mar. 23, 2017 Research and ... System Market Analysis & Trends - Industry Forecast to 2025" ... ... grow at a CAGR of around 8.8% over the next decade ... industry report analyzes the market estimates and forecasts for all the ...
Breaking Biology News(10 mins):