Navigation Links
Improved material for 'laser welding' of tissue in intestinal surgery
Date:5/8/2013

A new "solder" for laser welding of tissue during surgical operations has the potential to produce stronger seals and expand use of this alternative to conventional sutures and stapling in intestinal surgery, scientists are reporting. Their study, which involves use of a gold-based solder, or sealing material, appears in the journal ACS Nano.

Kaushal Rege and colleagues explain that laser tissue welding (LTW) is a "stitch-free" surgical method for connecting and sealing blood vessels, cartilage in joints, the liver, the urinary tract and other tissues. LTW involves use of laser light to heat tissue, causing changes that enable the sides of incisions to seal. LTW has advantages over sutures or staples, such as a shorter operation time and reduced scarring. However, it forms weak seals that can be a special problem in intestinal surgery. Leaks of intestinal contents can cause extremely painful and life-threatening abdominal infections. The scientists set out to develop an improved form of LTW that produces strong seals.

They describe development and successful laboratory tests of the material, a tissue solder called a plasmonic nanocomposite. It has gold nanorods in it that are so small that that 100,000 could fit in the period at the end of this sentence. The gold nanorods are wrapped inside a material that makes it more elastic so it can move with the body. They found that when the material was used as a light-activated solder for laser-welding cuts in pig intestines, it formed a strong, "liquid-tight" but elastic seal, preventing bacteria from leaking out. "Taken together, these plasmonic nanocomposites are exciting materials for laser-based tissue repair," say the researchers. The researchers plan to investigate these materials in animals with intestinal injury.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Improved Authentication and Confidentiality Protection. ICAP Patent Brokerage Announces for Auction Important Patents in Data Encryption and Document Security
2. Some improved cookstoves may emit more pollution than traditional mud cookstoves
3. Improved loblolly pines better for the environment, study finds
4. Early detection techniques offer hope for improved outcomes in lung cancer patients
5. Trial seeks improved lung-cancer screening by combining imaging and biomarkers
6. A trained palate: Understanding complexities of taste, smell could lead to improved diet
7. How alert hospital employees improved hospitals MSRA infection rate
8. 3-D motion of cold virus offers hope for improved drugs using Australias fastest supercomputer
9. Ship-borne measurements show EU policies have improved air quality in harbors
10. Glass offers improved means of storing UKs nuclear waste
11. Nutrition tied to improved sperm DNA quality in older men
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/29/2014)... of kidney cancer patients in Europe sheds light on ... an apparent link between exposure to aristolochic acid and ... research, by an international team led by scientists from ... Montreal, underscores the importance of investigating possible sources of ... of the Aristolochia genus, also has been suspected of ...
(Date:10/28/2014)... German . , ... food when times are lean? By studying wild chimpanzees ... of the Max Planck Institute for Evolutionary Anthropology in ... apes can acquire extra energy needed to maintain large, ... nests more en route to breakfast sites containing fruits ...
(Date:10/28/2014)... of Health (NIH) announced awards to expand the ... National Center for Advancing Translational Sciences (ORDR-NCATS) collaborative ... the network, physician scientists at 22 consortia will ... clinical research and investigate new treatments for patients ... by $29 million in fiscal 2014 funding from ...
Breaking Biology News(10 mins):Study sheds light on genetic architecture of kidney cancer 2Study sheds light on genetic architecture of kidney cancer 3The early chimp gets the fig 2The early chimp gets the fig 3NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 2NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 3
... IN Traditional turfgrass management programs rely heavily ... In response to increased public scrutiny and legislation, ... but research indicates that these alternatives have not ... lawn care industry. Results of a new study ...
... as the great pandemia of the XXI century. Recent data ... suffering from overweight, of which 300 million are clinically obese. ... worrying increase, with more than 155 million children and adolescents ... Biologist Aline Jelenkovic analysed to what point corporal morphology was ...
... QUEBEC, CANADA A study in HortTechnology ... reducing solar heat radiation and temperatures during the hot ... Canadian researchers, was the first investigation into the effects ... shading method. Results showed that the technology improved greenhouse ...
Cached Biology News:Turfgrass fertility, pesticide programs compared 2The amount of adipose tissue should be taken into account in the fight against obesity 2The amount of adipose tissue should be taken into account in the fight against obesity 3New technology improves greenhouse, plant microclimates 2
(Date:10/27/2014)... 27, 2014 The new research ... (High & Medium), Sub-type (Primary & Secondary), and ... & Transportation & Power Generation) - Trends and ... market with analysis and forecasting of the market ... Tables with 52 Figures spread through 146 Pages ...
(Date:10/27/2014)... TORONTO , Oct. 27, 2014 ... (OTCQB: GNBT) today announced two presentations demonstrating that ... its novel proprietary cancer immunotherapeutic AE37 vaccine correlated ... patients. The AE37 cancer vaccine is being developed ... ( www.antigenexpress.com ). The presentations are being made ...
(Date:10/27/2014)... 27, 2014 The “Molecular Diagnostic ... Microbiology), Technology (PCR, INAAT, DNA Sequencing), End User ... Software) - Global Forecast to 2018” provides a ... opportunities, current market trends, and strategies impacting the ... and forecasts of the revenue and share analysis. ...
(Date:10/27/2014)... 27, 2014 Called the NOAH ... eliminating several types of pediatric brain cancer. The ... in over 30 years of research and development. ... proves that one mom's determination can make a ... Halloween trick-or-treating, and it’s only fitting that we’ve ...
Breaking Biology Technology:Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 2Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 3Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 4Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 5FDA Approves Breakthrough in Pediatric Brain Cancer - First in 30 Years 2FDA Approves Breakthrough in Pediatric Brain Cancer - First in 30 Years 3
... Calif., Feb. 17 Avantis Medical Systems, Inc., a ... announced today that it has received a new 510(k) ... the claim for increased detection of cancerous and pre-cancerous ... technology that has been cleared by the FDA to ...
... as Senior Scientist , BURLINGTON, Mass., ... expansion of its executive team with the appointment ... The company also announced the addition of Richard ... )The appointments reflect the evolution of the company,s ...
... LIMMERICK, Ireland, Feb. 16 Copan Innovation Ltd., whose ... collection and transport systems in the world, has named ... Development in the Pacific Rim, as well as appointed ... Innovation Ltd. Bob Cooper, who brings a background of ...
Cached Biology Technology:Avantis Medical Systems Announces FDA 510(k) Clearance for the Third Eye(R) Retroscope(R) for Improved Polyp Detection in the Colon 2Avantis Medical Systems Announces FDA 510(k) Clearance for the Third Eye(R) Retroscope(R) for Improved Polyp Detection in the Colon 3Avantis Medical Systems Announces FDA 510(k) Clearance for the Third Eye(R) Retroscope(R) for Improved Polyp Detection in the Colon 4CorNova(R) Expands Management Team with Appointment of Robert Gallahue as Chief Financial Officer 2Copan Announces the Appointment of Bob Cooper as Vice President of Business Development in the Pacific Rim 2
FluoSpheres® biotin-labeled microspheres, 1.0 µm, yellow-green fluorescent (505/515) *1% solids*...
chk 1 kinase...
muscle actin (HUC1-1)...
... Neural Stem Cell Functional Identification Kit ... can be used for the short-term ... and the induction of NSCs into ... antibody panel consisting of mouse anti-human ...
Biology Products: