27 Results for 'Hydrogel'
Single-Cell Encapsulation for Improved Cell Therapies
Mesenchymal stromal cells (MSCs) are valued for their ability to secrete compounds that modulate the body’s immune system, making them an attractive solution for existing problems with cell therapies including host-vs-graft disease and organ transplant rejections. However, MSCs are rapidly cleared from the body and can come under fire from the immune system. Efforts to...
Injectable Alginate Hydrogels for Medical Applications
One of the biggest challenges in medicine is getting a drug to the right part of the body at the right time. Even when the target site in the body is known, like a pain-causing injury or a cancerous tumor, most drugs are given as oral pills or intravenous infusions, which limits their effectiveness. In...
Implantable Cancer Vaccine
The Wyss Institute’s implantable, biodegradable cancer vaccine leverages immunotherapeutic methods and could one day help overcome melanoma, other cancers, infectious diseases, auto-immune diseases, as well as vaccinate against specific peptides, proteins, or antigens. The implant is a biodegradable polymer scaffold containing growth factors and components of each patient’s tumors. The technology was initially designed to...
4D Printing of Shapeshifting Devices
Organisms, such as flowers and plants, have tissue compositions and microstructures creating dynamic morphologies that can shapeshift in response to changes in their environments. Researchers at the Wyss Institute have mimicked a variety of such dynamic shape changes like those performed by tendrils, leaves, and flowers in response to changes in humidity or temperature with...
Audio/PodcastSlug Slime Inspires Scientists To Invent Sticky Surgical GlueSlug Slime Inspires Scientists To Invent Sticky Surgical Glue was originally broadcast on NPR’s All Things Considered on July 27, 2017. This story features Wyss Institute Technology Development Fellow Jianyu Li. The original broadcast story can be found here.
Video/AnimationShear-Thinning Biomaterial: Catheter InjectionThis movie shows the solid state of the shear-thinning biomaterial immediately after release from the catheter into an aqueous solution (00:04). The STB is cohesive and remains as one solid piece throughout the injection process. There is no noticeable dissolution of the STB into the solution, suggesting it is stable immediately after being discharged from...
Video/Animation4D Printing: Shapeshifting ArchitecturesA team at the Wyss Institute and Harvard SEAS has developed a new microscale printing method to create transformable objects. These “4D-printed” objects go a step beyond 3D printing to incorporate a fourth dimension: time. The method was inspired by the way plants change shape over time in response to environmental stimuli. This orchid-shaped structure...
Video/AnimationTough GelA team at the Wyss Institute is honing a tough, rubbery hydrogel initially developed at Harvards School of Engineering and Applied Sciences. The gel is 90 percent water, yet it stretches without breaking to more than 20 times its original length and recoils like rubber, the researchers first reported in Nature in 2012. In fact,...
Video/AnimationIntroduction to Implantable Cancer VaccineWhat if we could prevent and treat cancer with a simple vaccine? Credit: Wyss Institute at Harvard University