63 Results for 'Polymer Chemistry'
T cell traps
T cells, a subtype of white blood cells, play key roles in cell-mediated immunity, be it to fight infections and cancer or, when corrupted, to react against the body’s own cells in more than 80 autoimmune diseases, including type I diabetes, multiple sclerosis, rheumatoid arthritis and others. However, isolating disease-related T cells from the body...
Ultra-Strong Flexible Biomaterials
Hydrogels are already being developed for use as scaffolds for tissue engineering, vehicles for drug delivery, actuators for optics and fluidics, and models for biological studies of tissue-supporting material called the extracellular matrix. But these water-rich polymer gels are weak; they rupture if stretched just a little, and they break easily compared with resilient biological...
Shrilk Biodegradable Plastic
Wyss Institute researchers have developed a fully degradable bioplastic by isolating a material called chitosan found in shrimp shells and forming a laminate with silk fibroin protein that mimics the microarchitecture of natural insect cuticle. The new material, called “Shrilk”, can be used to manufacture objects without the environmental threat posed by conventional synthetic plastics,...
Mechanically-Activated Drug Targeting Nanotechnology
The Wyss team has developed a novel drug targeting nanotechnology that is activated locally by mechanical forces, either endogenous high shear stresses in blood created by vascular occlusion or mechanical energy applied locally using low-energy ultrasound radiation. Today, vascular blockage is the leading cause of death and disability in United States and Europe. Current therapies...
Clinical studies take years to complete and testing a single compound can cost more than $2 billion. Meanwhile, innumerable animal lives are lost, and the process often fails to predict human responses because traditional animal models often do not accurately mimic human pathophysiology. For these reasons, there is a broad need for alternative ways to...
SLIPS (Slippery Liquid-Infused Porous Surfaces)
The need for an inexpensive, super-repellent surface cuts across a vast swath of societal sectors—from refrigeration and architecture, to medical devices and consumer products. Most state-of-the-art liquid repellent surfaces designed in the last decade are modeled after lotus leaves, which are extremely hydrophobic due to their rough, waxy surface and the physics of their natural...