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A biodegradable tissue to repair hearts after a heart attacks or to cure congenital malformations. A tissue that acts like a porous, accordion-like medium onto which cardiac stem cells are ‘implanted’ has been created by scientists from the prestigious Massachusetts Institute of Technology in Boston (MIT). This “bioscaffolding” integrates perfectly with cardiac tissue and creates a biological “band-aid” that is slowly reabsorbed and repairs cardiac muscle.
Compared to similar previous attempts, explained George Engelmayr in “Nature Materials” magazine, the advantage of the “bioscaffolding” is that it faithfully mirrors cardiac tissue structurally and mechanically, and
Hip-Joint, total Replacement, insertion without bone-cement (Photo credit: Wikipedia)
Nanoscale films developed at MIT promote bone growth, creating a stronger seal between implants and patients’ own bone.
Every year, more than a million Americans receive an artificial hip or knee prosthesis. Such implants are designed to last many years, but in about 17 percent of patients who receive a total joint replacement, the implant eventually loosens and has to be replaced early, which can cause dangerous complications for elderly patients.
To help minimize these burdensome operations, a team of MIT chemical engineers has developed a new coating for implants that could
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Though the world’s attention has focused on Iran‘s advancing nuclear program, Iranian scientists have moved to the forefront in embryonic stem cell research, according to a recent joint study by Harvard University and the Massachusetts Institute of Technology.
Controversial in the United States, embryonic stem cell research was embraced in 2002 by Ayatollah Ali Khamenei, Iran’s conservative religious leader. President Obama has recently adopted a similar policy, reversing restrictions that George W. Bush’s administration imposed because of the implications for destroying potential human lives.
Stem cells have been shown to have significant capability to develop into a plethora of
While in Lisbon, President Hockfield also participated in the launch of three new MIT Portugal research and training networks designed to advance new knowledge in sustainable energy systems and electric mobility, the greening of cities, and stem cell engineering. (These areas are central to MIT Portugal’s research efforts.) MITEI is a partner in the first two networks, and the Initiative’s Director Prof. Ernest Moniz also spoke at the forums at which they were announced.
By irradiating typical polystyrene lab plates with ultraviolet (UV) waves, Whitehead Institute and MIT scientists have created a surface capable of tripling the number of human embryonic stem (ES) and induced pluripotent stem (iPS) cells that can be grown in culture by current methods. Use of this novel surface also eliminates the need for layers of mouse “feeder cells” to support ES- and iPS-cell growth.
“Polystyrene is the most common cell culture surface used in labs, and to be able to do a simple treatment and get something that works better than the mouse feeder layers is great and potentially