Using a chemical polymerization process, the researchers graft a coating consisting of a hydrophilic polymer and a lubricious polymer onto the inner wall of the injection cartridge. This coating helps eliminate friction, allowing the lens to slide out of the syringe without getting scratched or jammed inside the cartridge.
by Linda Wang | October 31, 2020
—New hydrogel electrodes sense eye motion comfortably “The fabric-based technology made its debut at the ACS fall virtual meeting” On Aug. 17 at the ACS Fall 2020 Virtual Meeting during a presentation in the Polymeric Materials: Science and Engineering Division, researchers reported on a reusable hydrogel electrode that can track eye motion with excellent signal quality without compromising on comfort.
by Ariana Remmel | August 20, 2020
After exploring the market, Brown identified 28 service providers with enzyme-immobilization expertise, but only 4 of them also had experience with suspension polymerization—the process for synthesizing the bead. The company Alcresta eventually signed with, Almac Sciences, wasn’t on the short list. “Companies with experience in both immobilization and suspension polymerization recognized they were in a unique position and were larger companies,” Brown says. “Frankly, they wanted to make a bigger deal of it than Alcresta could stomach at the time.” As he widened his search he decided to take another look at Almac.
by Rick Mullin | June 24, 2019
After exploring the market, Brown identified 28 service providers with enzyme-immobilization expertise, but only 4 of them also had experience with suspension polymerization—the process for synthesizing the bead. The company Alcresta eventually signed with, Almac Sciences, wasn’t on the short list. “Companies with experience in both immobilization and suspension polymerization recognized they were in a unique position and were larger companies,” Brown says. “Frankly, they wanted to make a bigger deal of it than Alcresta could stomach at the time.” As he widened his search he decided to take another look at Almac.
by Michael McCoy and Rick Mullin | June 24, 2019
It is made by polymerizing styrene and acrylonitrile in the presence of polybutadiene, forming a strong graft copolymer familiar in applications such as electronics housings and automotive interiors. Styrene is also used to make elastomers such as styrene-butadiene rubber. As ubiquitous as some of these plastics are, business wasn’t so good in the 2000s.
by Alexander H. Tullo | June 12, 2017
—Method grows polymers on cell surface without damaging the cell “Controlled radical polymerization is gentle enough to use with mammalian cells” Modifying the surface of cells with synthetic polymers offers a strategy for manipulating cellular behavior. Usually researchers make such modifications by attaching premade polymers to functional groups on the cell surface, but that “grafting-to” approach isn’t very efficient. An alternative approach involves “grafting from,” in which a polymer grows from an initiator on the cell surface. But this has been hard to do in ways that keep the cells—especially mammalian cells—alive. H. Tom Soh of Stanford University; Jia Niu and Craig J. Hawker of the University of California, Santa Barbara; and coworkers report an approach using a light-mediated controlled radical polymerization method that is gentle enough to use with mammalian cells (Nat.
by Celia Henry Arnaud | February 06, 2017
., mostly African Americans, and gets its name from the characteristic shape that red blood cells adopt due to polymerization of mutant hemoglobin. “Even with the best medical care, many people die in childhood,” says hematologist David I. K. Martin from Benioff Children’s Hospital, who was part of the study.
by Ryan Cross | October 12, 2016
., he worked on research titled “Synthesizing Temperature-Responsive Polymer-Grafted Clay Nanoparticle Complex Using Advance Transfer Radical Polymerization.” He is majoring in pharmacy at Rutgers University, in New Brunswick, N.J. Stephanie Benefield is a graduate of Ranburne High School, in Alabama.
by Linda Wang | March 16, 2015
CPX-8 is a polymeric nanoparticle containing a releasable form of the cancer drug docetaxel. Although not yet in clinical trials, it is a lot closer to that step than it would have been without NCL, Mayer says. Celator didn’t have sufficient staff or funds to run these tests back in 2009, when NCL accepted the firm’s application.
by Lauren K. Wolf | September 02, 2013
Sometimes chemists might graft a side chain onto the polymer or cross-link the chains to form polymer networks. But that old simplicity is falling by the wayside. Advances in polymer synthetic techniques that allow better control over the size and shape of polymers are allowing researchers to think more like architects to dream up exotic new polymer designs.
by Stephen K. Ritter | March 15, 2013