HOME >> MEDICINE >> NEWS
Sealing corneal incisions with a drop of chemistry, BU researchers develop gel for cataract surgery

(Boston) -- By introducing just the right biocompatible molecules to one another, a research team led by Mark Grinstaff, an associate professor of biomedical engineering and of chemistry at Boston University, has produced an elastic, transparent gel that sets so fast and adheres so surely to the eye's surface that it could soon become the first and best choice for sealing corneal incisions.

The substance, known as a hydrogel, promises to be a useful tool in the kit used for the most common of ophthalmic surgeries: cataract removal. Currently, 11 million such surgeries are performed worldwide annually, a figure expected to increase as the world's population grows older.

The team's findings will appear in the October 13 issue of the Journal of the American Chemical Society.

A cataract is a clouding of the eye's lens, a condition that obscures vision by gradually blocking the light that enters the eye. To remove a clouded lens, a surgeon makes a small incision in the conjunctiva, the margin between white area (tunica) and the clear area (cornea) of the outer eye. Through this tiny opening, the surgeon works to break up the lens, often by using high-frequency sound waves; extracts the destroyed lens; then implants a synthetic lens. Currently, the procedure finishes with the surgeon following one of two accepted paths: allowing the incision to seal itself or stitching the incision shut using nylon sutures.

Each closing method has its drawbacks. Self-sealing, in which the open wound closes gradually over time, carries the risk of infection as well as leakage of intraocular fluid. Suturing likewise can carry the risk of infection and inflammation, as well as the abnormal development of blood vessels, a condition known as vascularization.

To potentially stave off these post-operative complications, Grinstaff's team decided to build a biological bandage using versatile materials known as dendritic macromolecules. Ca
'"/>

Contact: Ann Marie Menting
amenting@bu.edu
617-358-1240
Boston University
12-Oct-2004


Page: 1 2 3

Related medicine news :

1. 7-month-old is youngest recipient of artificial corneal transplant
2. A&E departments could help resolve the national shortage of corneal donors
3. Wolfgang Glasser receives ACS award for wood chemistry, bio-based composites research
4. Indiana University researchers closer to helping hearing-impaired using stem cells
5. Protein that helps skin cancer spread identified by Stanford researchers
6. US life expectancy about to decline, researchers say
7. Gene for age-related macular degeneration discovered by Yale researchers
8. Dartmouth researchers find where musical memories are stored in the brain
9. Columbia researchers receive $3 million to combat genetic killer of infants & toddlers
10. US cancer researchers launch first American-Israeli cancer conference
11. USC dental researchers develop first test for predicting cavities in children

Post Your Comments:
(Date:10/22/2014)... Texas (PRWEB) October 22, 2014 ... of completing their continuing education at home or ... have access to 20 brand new, premium Seminar-on-Demand ... robust catalog of over 2,000 hours ... fully customize their educational experience. With such a ...
(Date:10/22/2014)... 2014 Richard Carlson, Managing Partner of ... with over 25 years experience. Mr. Carlson is ... areas related to EDI, B2B Commerce, RFID and Internet/Intranet ... Advisory Board member for Pharmaceutical Commerce Magazine and a ... Group is a management and technology consulting firm focused ...
(Date:10/22/2014)... 2014 (HealthDay News) -- Two sisters in high school ... Ilina and Medha Krishen use electronic stethoscopes, which ... trouble in breathing patterns or heartbeats. Ilina, a ... wanted to find a way to detect early lung ... an electronic stethoscope, Ilina recorded one breath cycle each ...
(Date:10/22/2014)... Dennis Thompson HealthDay ... U.S. health officials on Monday officially tightened guidelines for health ... no skin exposure and use of a respirator at all ... decided to issue the tougher rules after two Dallas nurses ... in the United States, Liberian national Thomas Eric Duncan. Nina ...
(Date:10/20/2014)... 2014 Allegheny General Hospital’s (AGH) Cardiovascular ... physicians to repair a damaged mitral valve as the ... system, developed by Abbott Vascular , is designed ... life-threatening condition in which the heart’s mitral valve leaflets ... from the heart’s left ventricle into the left atrium. ...
Breaking Medicine News(10 mins):Health News:Top Provider of Continuing Education at Home Releases 20 New Online Courses 2Health News:Rich Carlson and Marc Duey to Hold Workshop at CBI’s Specialty Pharmacy and Distribution Networks Conference 2Health News:Teen Sisters Develop Ways to Measure Lung, Heart Damage 2Health News:CDC Tightens Rules on Caring for Ebola Patients 2Health News:CDC Tightens Rules on Caring for Ebola Patients 3Health News:Allegheny General Hospital Introduces New, Beating-Heart Procedure for Mitral Valve Repair 2Health News:Allegheny General Hospital Introduces New, Beating-Heart Procedure for Mitral Valve Repair 3
(Date:10/22/2014)... HOUSTON , Oct. 22, 2014  Charlene Vernak, RPh, ... York , recently was awarded the George Roentsch ... Vernak received the award in Houston ... The scholarship is awarded annually to an independent pharmacist ... nature of George Roentsch , a well-known pharmacist ...
(Date:10/22/2014)... A new report by Allied ... Form, End user, Application and Geography) - Size, Share, ... Opportunities, Segmentation and Forecast, 2013 - 2020", considers commercial ... key trends tracked, it is anticipated that the market ... 2020, registering a CAGR of 6.2% from 2014 to ...
(Date:10/22/2014)... LOUIS , Oct. 21, 2014  Early ... often subtle or unnoticed, but new technology, coupled ... outcomes and leading to earlier detection of eye ... affects 29 million Americans. If left untreated, these ... even blindness. Recently, optometric researchers ...
Breaking Medicine Technology:PCCA Awards Charlene Vernak, RPh, the George Roentsch Scholarship 2Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 2Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 3Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 4Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 2Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 3
Cached News: