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Implant in Biological News

Can a new implant coating technique create a new six million dollar man?

Tel Aviv University researcher Prof. Noam Eliaz of the TAU School of Mechanical Engineering has developed an electrochemical process for coating metal implants which vastly improves their functionality, longevity and integration into the body. The new process could vastly improve the lives of ...

Intraspinal implant of mesenchymal stem cells may not heal the demyelinated spinal cord

Tampa, Fla. (Nov. 12, 2008) Multiple sclerosis is a disease caused by the loss of the myelinated sheath surrounding the nerve fibers of the spinal cord. Therapeutic hope for curing multiple sclerosis and other demyelinating diseases has included the possibility that stem cell transplants could he...

Nanotextured implant materials: blending in, not fighting back

Biomedical engineers are constantly coming up with ways to repair the human body, replacing defective and worn out parts with plastic, titanium, and ceramic substitutes ?but the body does not always accept such substitutes seamlessly. Engineers from Brown and Purdue universities have found that sim...

Ophthalmologists implant five patients with artificial silicon retina microchip

Ophthalmologists at Rush University Medical Center implanted Artificial Silicon Retina (ASR) microchips in the eyes of five patients to treat vision loss caused by retinitis pigmentosa (RP). The implant is a silicon microchip 2mm in diameter and one-thousandth of an inch thick, less than the thickn...

Scientists closer to making implantable bone material, thanks to new research

...published today in the journal Nature Materials . Many scientists are currently trying to create bone-like materials, derived from stem cells, to implant into patients who have damaged or fractured bones, or who have had parts of diseased bones removed. The idea is that, ultimately, these bone-like mate...

DOE-funded research projects win 46 R&D 100 Awards for 2009

...nts with vision loss were able to successfully identify objects, navigate in their environment, and detect movement using the "artificial retina." The implant is intended eventually to enable patients to read large print and recognize faces. (This multi-team project was jointly submitted by Argonne National ...

Progress toward artificial tissue?

... -- which are usually very fragile. Because many biological tissues are regularly subjected to intense mechanical loads, it is also important that the implant material have comparable elasticity in order to avoid inflammation. At the same time, the material must be very strong and resilient, or it may give o...

MIT’s implantable device offers continuous cancer monitoring

...uman tumor cells. The cylindrical, 5-millimeter implant contains magnetic nanoparticles coated with antibo...o the target molecules. Target molecules enter the implant through a semipermeable membrane, bind to the part...sed in many plastics. Cima said he believes an implant to test for pH levels could be commercially availa...

NIST issues first reference material for tissue engineering

...some years, are biodegradable materials that are meant to be implanted in the body to provide a structurally sound framework for the patients cells to implant and grow, in time repairing damaged tissue. The scaffolds are meant to be absorbed gradually by the body and replaced by normal tissue. Today they are...

Canadian biomedical engineering pioneer receives international award

...function. Today, the bioactive concept is revolutionizing medical devices by merging the biopharmaceutical field and medical device sector to deliver implant therapies that accelerate healing associated with serious diseases." ...

Targeted drug therapy prevents exercise-induced arrhythmias

... off the excessively high doses of beta blockers, limit defibrillator discharges in patients with ICDs, and decrease the likelihood that we'll need to implant defibrillators in these patients at a young age if the arrhythmias can be controlled medically," Fish said. "That's an exciting prospect." Fish feel...

From stem cells to new organs: Stanford and NYU scientists cross threshold in regenerative medicine

...h stem cells before it was implanted back into the animal. Once the tissue was back in the mice, the stem cells continued to grow on their own and the implant was not rejected. This suggests that if the stem cells had been coaxed into becoming an organ, the organ would have "taken hold" in the animal's body....

Case Western Reserve researchers develop 'wireless' activation of brain circuits

... to some control system. It is both very invasive and a difficult thing to do," says Strowbridge. IIn principle, the researchers should be able to implant these nanoparticles next to the nerve, eliminating the requirement for wired connections. They can then use light to activate the particles. "We ...

New generation of orthopedic, dental and cardiovascular prostheses

... and growth were increased in contact with the nanoporous surfaces. Different etchants have different effects Uncontrolled growth of cells on an implant is not ideal. For example, when using cardiovascular stents, it is important to limit the growth of certain cells in order not interfere with blood fl...

Modified gene targets cancer cells a thousand times more often than healthy cells

...ign virus. If successful, the team will attempt to treat cancer in mice by injecting their tumors with a solution of the virus, and allow the virus to implant the gene into all cells. The key question is whether a dose high enough to kill the cancer cells also will be high enough to kill healthy cells in a l...

TECNALIA investigates advanced biomaterials to make more reliable and hardwearing medical implants

...ent of novel biomaterials which enable an extension of the functions of the implant throughout the whole life of the patient, in such a way that repeat surgica...e implants are operational in a minimum time; the state and progress of the implant monitored, both in the short term and in the long term after the surgical o...

Innovative surgery by MSU veterinarian provides new lease on life to dogs

...ding reduced risk of infection and reduced rate of implant wear, both of which are regarded as leading causes of post-surgery morbidity and implant failure. The surgery also is performed as a minima...din said. Van Der Meulen said the design of the implant virtually guarantees proper alignment of the joint...

Similar survival rates for Pacific salmon in Fraser, Columbia Rivers raises new questions

... other than dams play a larger, unsuspected role in salmon survival." Only in recent years have acoustic tags become small enough for scientists to implant them into juvenile salmon and track them as they migrate downstream. These innovations enabled the team to gather data on salmon smolts in the Fraser ...

Heart valves that grow with the patient

... development of "grown" heart valves. After six years of development work and experiments on small and large animals, in May 2002 Haverich was able to implant the first decellularised and re-colonised heart valves into two children of nine and ten years of age. Since then 16 children have been successfully o...

Nanoscale coating protect products -- and the economy

...ting to conditions within the human body that can cause hairline cracks to form in heart valves or holes in artificial joints, for example, preventing implant rejection or failure. Relying on 'Dorothy' Achieving the right characteristics for these protective coatings depends on choosing the right com...

BIO-key(R) Granted Additional Patent for Biometric Security Solution

...ometric image or template before it is transmitted, thereby providing protection from attempts to hack into the computer or the transmission to either implant a different biometric or to steal a copy of the biometric being transmitted. This new patent grant increases BIO-key's current inventory to twelve (12...

Scent on demand: Hebrew University scientists enhance the scent of flowers

... A team of scientists at the Hebrew University of Jerusalem has found a way to genetically enhance the scent of flowers and implant a scent in those that don't have one. Smell plays an important role in our lives: It influences the way in which we choose fruit and vegetables, pe...

Models of eel cells suggest electrifying possibilities

...ers of artificial cells in a cube slightly over 4 mm on a side are capable of producing continuous power output of about 300 microwatts to drive small implant devices. The individual components of such artificial cellsincluding a pair of artificial membranes separated by an insulated partition and ion channe...

NIH awards Clemson bioengineer $1.5 million to improve durability of tissue heart valves

...he tissue matrix, lead to significantly better stabilization of the valve tissue." Vyavahare says improvements in durability will allow surgeons to implant the valves in the younger patient population. Vyavahare and his group at Clemson have studied the problem of calcification in arteries and heart va...

Sentara begins international trial -- open at only 24 US locations

...dure of the first wave of Virginia participants. During the procedure, a tube is guided through the mouth of trial participants to access the lung and implant up to six stents smaller than a pencil eraser. The goal is to relieve breathlessness and over inflated lungs hallmarks of this incurable, progressiv...

Galloping and breathing at high speed

...researchers have been developing a pacemaker for the larynx. The electrical implant can be placed into the muscle or around the nerve in order to stimulate the muscle and keep it open during exercise. The implant has been developed to the point where it can be used to keep the airways of...

IOF World Congress on Osteoporosis in Bangkok to address Asian issues

...d by Suthorn Bavonratanavech and David Marsh Session 1 between fragments Fracture Healing in Elderly Patients, Thomas A. Einhorn, U.S.A. Is implant Anchorage Different? Jrg Goldhahn, Switzerland Is Treatment Strategy Different? Mathias P. Bostrom, U.S.A. Session 2 between specialties Co...

Gap junction protein vital to successful pregnancy, researchers find

...ation, this gap junction protein is essential to the rapid growth of new blood vessels needed to support the development of the embryo and allow it to implant in the uterine wall, the researchers discovered. The researchers chose to study Cx43 after analyzing genes that are activated in the presence of es...

Cryopreservation techniques bring hopes for women cancer victims and endangered species

...omen, with several children born as a result of transplantation of frozen/thawed ovarian tissue, can be applied in endangered species to know where to implant and how to obtain pregnancies," said Andersen. The techniques will also be valuable in agriculture, for preserving ovaries of farm animals in tissue b...

Goulbourne earns NSF award to research heart stent sensors

...n hours of the incident can be lifesaving. A coronary stent or elastic tube implant is a permanent insert placed in the artery to act as a scaffold to keep the...plained, she is interested in this research because the percentage of stent implant failures is as high as 20 to 30 percent. Also, there is a lack of diagnosti...

Battling diabetes with beta cells

...expansion, has developed a way to cultivate cells derived from insulin-producing beta cells from human tissue in the laboratory. It may be possible to implant these new healthy cells into patients with type 1 diabetes. If successful, this method, which artificially replicates the insulin cells people need...

Engineers create bone that blends into tendons

...reate artificial bone that melds into softer tissues, but were also able to implant the technology in vivo for several weeks. They created the tissue by coa...ental biology. Now that they have been able to demonstrate that they can implant the tissue in vivo for several weeks, the team's next step is to show that ...

Biophysical method may help to recover hearing

...ational Biology . Hearing loss is an increasingly important problem in societies of growing average age. The conventional hearing-aid and cochlear implant technology have only been partially successful in recreating the experience of the fully functioning ear. A possible reason for the lack of success...

MED-EL's new MAESTRO

...chnology, available only with the MAESTRO Cochlear implant System. In addition to hearing in "high definition...D-EL's MAESTRO system offers the smallest internal implant and the thinnest, lightest externally-worn speech ...of hearing that have been challenging for cochlear implant users. 1 A questionnaire of patients who partici...

Human embryonic stem cells developed from 4-cell embryo; world first may lessen ethical concerns

...Dr. Van de Velde, "but we already know from cryopreserved embryos that the loss of one cell from a 4-cell stage embryo does not affect its capacity to implant in the womb. We believe that by making it possible to intervene at an earlier stage, and without destruction of the embryo, these ethical concerns wil...

Researchers coat titanium with polymer to improve integration of joint replacements

...titute of Technology shows that coating a titanium implant with a new biologically inspired material enhances tissue healing, improves bone growth around the implant and strengthens the attachment and integration of the implant to the bone. "We designed a coating that speci...

Technique used in human ankle injuries modified to treat dogs' knees

... "Other current techniques require major surgery that involve cutting the bone, which can potentially lead to severe complications, such as fracture, implant failure and damage to the joint," said Cook, professor of veterinary medicine and surgery and the William C. Allen Endowed Professor for Orthopedic R...

American Chemical Society's Weekly PressPac -- May 14, 2008

...and other devices and play a key role in the multi-billion-dollar-per-year problem of antibiotic resistant infections. The finding could lead to safer implant materials for fighting biofilms, which are linked to thousands of deaths each year, the scientists say. It also can be used to develop materials capab...

American Chemical Society's Weekly PressPac -- April 30, 2008

...prevent life-threatening infections in medical implants. The coating, produced by genetically-engineered bacteria, could cut medical costs and improve implant safety, the researchers say. Their study is scheduled for the June 6 issue of ACS Biotechnology Progress, a bi-monthly publication. Bacterial infec...

Turning on cell-cell communication wipes out staph biofilms

... Ph.D., UI associate professor of orthopaedics and rehabilitation, to investigate the dispersal of staph biofilms from both allograft bone and medical implant materials. The findings also may have implications for treating biofilms of emerging antibiotic resistant staph strains, including methicillin-resi...
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