ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Bio-isoprene Yokohama Rubber Co. (Tokyo, Japan; www.yokohama.com) has developed what…
Chemical Engineering MagazineCO2-to-methanol
Researchers from Penn State University (State College, Pa.; www.psu.edu) and…
BUSINESS NEWSTECHNICAL & PRACTICALFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment

Mimicking cell behavior with functionalized surfactants

By Paul Grad |

Active surfactants are those that are responsive to an external stimulus, such as temperature, light, electric or magnetic fields or chemical agents. Scientists from the Institute for Basic Science (Daejeon, South Korea; www.ibs.re.kr) have developed surfactants based on functionalized nanoparticle dimers that are responsive to magnetic, optical and electric fields simultaneously. These surfactants can be used to coat liquid droplets, which can then be manipulated by external stimuli and assembled into various hierarchical structures. For example, the droplets can be manipulated with light absorbed by the nanoparticles. A laser causes the droplets to move toward the beam and form closely packed structures within seconds. The process is reversible and repeatable. Turning the laser on and off produces alternating assembly and scattering. When the light is guided to the edge of a droplet, it begins to rotate. If the droplet is located in a packed group, it can transfer mechanical torque to other droplets, thus acting like a system of mechanical gears. The speed and direction of rotation can be adjusted by the laser’s angle and intensity. While a magnetic and optical field manipulates the position and movement of a droplet, an electric…
Related Content
CO2-to-methanol
Researchers from Penn State University (State College, Pa.; www.psu.edu) and Dalian University of Technology (Dalian, China; www.dlut.edu.cn) have improved the…
Chementator Briefs
Bio-isoprene Yokohama Rubber Co. (Tokyo, Japan; www.yokohama.com) has developed what is said to be the world’s first technology capable of…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability
Detect and correct anomalies early in your batch processes
ABB at ACHEMA 2018

View More

Live chat by BoldChat