Navigation Links
Porcupine Quill Could Foster New Medical Devices
Date:12/11/2012

TUESDAY, Dec. 11 (HealthDay News) -- Studying porcupine quills could lead to the development of new medical devices, researchers say.

A team at Brigham and Women's Hospital in Boston discovered how North American porcupine quills easily puncture tissue and why, once stuck in flesh, they are difficult to remove. They did this using natural porcupine quills and replica-molded synthetic polyurethane quills.

They said their findings could lead to the creation of needles that effortlessly penetrate skin and resist buckling, as well as new types of medical adhesives.

The study was published online Dec. 10 in the journal Proceedings of the National Academy of Sciences.

A porcupine's quills are its key defense mechanism. Each of the approximately 30,000 quills on a porcupine's back contains a conical black tip studded with a layer of microscopic, backward-facing barbs and a cylindrical base with a smooth, scale-like structure, the researchers said.

The researchers discovered that the quill's geometry and barbs enable it to penetrate tissue with ease. Once in the tissue, the barbs keep it in place.

"By carefully removing the barbs from the quill, we discovered that in addition to their physical features, the location of barbs on the quill played a major role in minimizing penetration forces and maximizing the work needed to yank them from the tissue," study first author Woo Kyung Cho, of the department of medicine's biomedical engineering division, said in a hospital news release.

In order to assess potential medical uses, the researchers developed plastic quill replicas that closely mimic the penetration force and gripping power of natural quills.

The authors pointed out that other creatures in nature have inspired bioengineered devices. For instance, geckos inspired the development of tape-based adhesives, they said.

More information

The San Diego Zoo has more about porcupines.

-- Robert Preidt

SOURCE: Brigham and Women's Hospital, news release, Dec. 10, 2012


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Glaucoma study could inspire e-reader apps
2. Public ecology could help resolve mountaintop mining issues
3. Could Kids Salt Intake Affect Their Weight?
4. New small molecule inhibitor could be a safe and first-line treatment for metastatic breast cancer
5. Immune system kill switch could be target for chemotherapy and infection recovery
6. Scientists discover mechanism that could reduce obesity
7. Protected Power Naps Could Help Keep Medical Interns Alert: Study
8. Breath test could possibly diagnose colorectal cancer
9. Flu Season Arrives Early and It Could Be Severe: CDC
10. Deep Belly Fat Could Weaken Mens Bones, Study Suggests
11. Measles vaccine given with a microneedle patch could boost immunization programs
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Porcupine Quill Could Foster New Medical Devices
(Date:10/13/2017)... ... ... Apple Rehab Shelton Lakes , which specializes in the delivery of sub-acute ... of a disaster drill on October 3rd. , Apple Rehab participated with the Shelton ... well as the Connecticut Long Term Care Mutual Aid Plan (LTC-MAP). The LTC-MAP ...
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... services for healthcare compliance program management, will showcase a range of technology and ... for Assisted Living (NCAL) Convention and Expo to be held October 14–18, 2017 ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical Informatics (ACMI) will ... during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. AMIA’s Annual ... F. Collen, a pioneer in the field of medical informatics, this prestigious award is ...
(Date:10/12/2017)... ... October 12, 2017 , ... Leading pediatric oncology experts at Children’s National ... 49th Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. ... for Cancer and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... Sept. 27, 2017  Commended for their devotion to personalized ... Ranked as number one in the South Florida Business Journal,s ... Inc. 5000 yearly list, the national specialty pharmacy has found ... Bardisa will soon be honored by SFBJ as the ... Set to receive his award in October, Bardisa ...
(Date:9/25/2017)...   Montrium , an industry leader in ... IQPC Trial Master Files & Inspection Readiness Conference ... Clinical Services has selected eTMF Connect ... EastHORN, a leading European contract research organization (CRO), ... to enable greater collaboration with sponsors, improve compliance ...
(Date:9/23/2017)... Janssen Biotech, Inc. (Janssen) announced today that ... U.S. Food and Drug Administration (FDA) for the Biologics ... treatment of moderately to severely active rheumatoid arthritis (RA). ... needed to further evaluate the safety of sirukumab in ... "We are disappointed ...
Breaking Medicine Technology: