HOME >> BIOLOGY >> NEWS
UCSB researchers show how to make polymeric micro- and nanoparticles

Santa Barbara, CA July 9, 2007 Researchers in the College of Engineering at UC Santa Barbara have discovered how to make polymeric micro- and nanoparticles in a wide variety of different shapes and sizes using commonly-available lab chemicals and equipment. Knowing how to create these particles in the average laboratory environment will facilitate further discovery, as the particles are essential to understanding the role of shape in particle function. Their research is published in todays online edition of the Proceedings of the National Academy of Sciences.

Polymeric micro- and nanoparticles are used in a wide range of applications including medical imaging, drug delivery, and beauty and personal care products. These applications typically use spherical particles. While making particles in other shapes could be extremely useful, fabricating shapes other than spheres has been technically challenging.

The research team, led by Samir Mitragotri, a professor of chemical engineering, with Julie Champion, a graduate student, and Yogesh Katare, a post-doctoral researcher, used spherical polystyrene beads as a starting point. In one approach, the beads were liquefied by heat or solvents and then stretched. In the second, the beads were embedded in a polyvinyl alcohol film and the film was stretched to create voids around the beads. These voids were then filled by liquefying the beads using heat or solvent. From these two simple techniques, more than 20 different shapes were formed, ranging from simple rods and eggs to lenses, diamonds, food-shaped ravioli and tacos.

The methods used to create the potpourri of micro- and nanoparticles allow the researchers to control the size and shape of the particles created, a crucial factor in the development of nonspeherical particles in a variety of fields, including drug delivery, microbiology, advanced materials and rheology. This research was funded by the NIH program of excellence in nanotech
'"/>

Contact: Barbara Bronson Gray
bbgray@engineering.ucsb.edu
818-889-5415
University of California - Santa Barbara
9-Jul-2007


Page: 1 2

Related biology news :

1. Innovative tagging technique may help researchers better protect fish stocks
2. Penn researchers discover how key protein stops inflammation
3. ASU researchers partner with UOP to make biofuel for military jets a reality
4. Einstein researchers prototype vaccine could provide improved protection against tuberculosis
5. Penn researchers discover pathway that eliminates genetic defects in red blood cells
6. U-M researchers find family of on switches that cause prostate cancer
7. 2007 EURYI: 20 young researchers to receive Nobel Prize-sized awards for breakthrough ideas
8. Pets could be source of multiresistant bacteria infections in humans, MU researchers investigate
9. MGH researchers confirm that bone marrow restores fertility in female mice
10. Smithsonians National Zoo researchers use electronic eggs to help save threatened species
11. U-M researchers identify gene involved in breast cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/18/2017)... 2017  Socionext Inc., a global expert in SoC-based imaging and ... the M820, which features the company,s hybrid codec technology. A demonstration ... Probe, Inc., will be showcased during the upcoming Medtec Japan at ... the Las Vegas Convention Center April 24-27. ... Click here for an ...
(Date:4/13/2017)... UBM,s Advanced Design and Manufacturing event in ... and evolving technology through its 3D Printing and Smart ... the expo portion of the event and feature a ... on trending topics within 3D printing and smart manufacturing. ... will take place June 13-15, 2017 at the Jacob K. ...
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, ... secure authentication solutions, today announced that it has ... Advanced Research Projects Activity (IARPA) to develop next-generation ... program. "Innovation has been a driving ... Thor program will allow us to innovate and ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... , ... October 12, 2017 , ... ... today announced the three Winners and six Finalists of the 2017 Blavatnik Regional ... by the Blavatnik Family Foundation and administered by the New York Academy of ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... with the addition of its newest module, US Hemostats & Sealants. , SmartTRAK’s ... hemostats, absorbable hemostats, fibrin sealants, synthetic sealants and biologic sealants used in surgical ...
(Date:10/11/2017)... ... 2017 , ... At its national board meeting in North ... the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space Technology and ... ARCS Alumni Hall of Fame . ASTER Labs is a technology development ...
(Date:10/11/2017)... CA, USA (PRWEB) , ... October 11, 2017 , ... ... to take place on 7th and 8th June 2018 in San Francisco, CA. The ... influencers as well as several distinguished CEOs, board directors and government officials from around ...
Breaking Biology Technology:
Cached News: