Navigation Links
Mighty mesh
Date:1/23/2012

Cambridge, Mass. - January 23, 2012 - New research at Harvard explains how bacterial biofilms expand to form slimy mats on teeth, pipes, surgical instruments, and crops.

Through experiment and mathematical analysis, researchers have shown that the extracellular matrix (ECM), a mesh of proteins and sugars that can form outside bacterial cells, creates osmotic pressure that forces biofilms to swell and spread.

The ECM mechanism is so powerful that it can increase the radius of some biofilms five-fold within 24 hours.

The results have been published in the Proceedings of the National Academy of Sciences.

Biofilms, large colonies of bacteria that adhere to surfaces, can be harmful in a wide range of settings, resulting in tooth decay, hospital infections, agricultural damage, and corrosion. Finding ways to control or eliminate biofilms is a priority for many industries.

In order for a biofilm to grow, a group of bacterial cells must first adhere to a surface and then proliferate and spread. When a vast number of cells are present, this can translate into the creation of a filmy surface spanning several meters.

"Our work challenges the common picture of biofilms as sedentary communities by showing how cells in a biofilm cooperate to colonize surfaces," says lead author Agnese Seminara, a research associate at the Harvard School of Engineering and Applied Sciences (SEAS).

Several types of biofilms have been characterized based on composition and antibiotic resistance, but until now it has not been clear what roles the whip-like flagella and the ECM play in the outward movement of cells.

While the presence of a flagellum has traditionally been associated with greater movement capability, the new research has found that a flagellum actually confers little advantage in the formation of biofilms. In the Harvard study, mutant bacteria lacking flagella were able to spread at almost the same
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-1351
Harvard University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Fit females make more daughters, mighty males get grandsons
2. Simple little spud helps scientists crack potatos mighty genome
3. Mighty predatory mite and oil sprays may save eggplant production in Micronesia
4. Humans have a mighty bite
5. Mighty diatoms: Global climate feedback from microscopic algae
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mighty mesh
(Date:1/22/2015)... 2015 /PRNewswire/ - Today, FindBiometrics, the leading source of biometrics industry ... new website design. "When we launched FindBiometrics 12 ... Peter O,Neill , founder and CEO of FindBiometrics. "Now it,s ... from the key players on a very broad scale.  We ...
(Date:1/22/2015)... MADISON, Wis. , Jan. 15, 2015  BellBrook ... for drug discovery, announced the launch of a ... of the company,s Transcreener UDP Assay, a high ... enzymes. The new assay will allow for sensitive ...
(Date:1/22/2015)... POINT ROBERTS, Washington , January 20, 2015 ... sectors including technology and tech stocks, releases video from the ... pickpocket and security consultant Apollo Robbins . ... about the Wocket™ biometric smart wallet, a product of NXT-ID, ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3
... FEBRUARY 2, 2009--Phosphorus is one of the key nutrients ... problems in lakes, rivers, and estuaries worldwide. Phosphorus ... Agricultural land receiving long term applications of organic by-products ... contributors. Such soils often become enriched with P, ...
... facial structure of an ancient relative of modern humans ... hard nuts and seeds as part of a survival ... team of researchers that includes Florida State University,s Dennis ... Proceedings of the National Academy of Science, ...
... February 2, 2009 -- Scientists today announced ... to science, including a spiky-skinned, orange-legged rain frog, three ... because their transparent skin can reveal internal organs. ... Program (RAP) expedition in Colombia,s mountainous Tacarcuna area of ...
Cached Biology News:Understanding phosphorus in soils is vital to proper management 210 new amphibian species discovered in Colombia 210 new amphibian species discovered in Colombia 3
(Date:1/22/2015)... (PRWEB) January 21, 2015 Cambridge Semantics, the ... technology, today announced that 2014 was a record-breaking year across ... capabilities of the Anzo Smart Data Platform and our Smart ... utilize insights from diverse data which led to record growth ...
(Date:1/22/2015)... zFlo Motion , a US leader in ... product from a new partner. STT-Systems has developed ... 15 years, with offerings in the optical-motion capture, 3D scanning, ... (inertial measurement unit), iSen, is opening eyes around the world. ...
(Date:1/22/2015)... 22 de enero de 2015  El Dr. Paul ... llamada a nominaciones para 2015. Este prestigioso premio reconoce ... tiene el potencial para hacer, contribuciones destacadas para la ... hasta el 15 de marzo de 2015 a través ...
(Date:12/25/2014)... 25, 2014 The report “Service Quality ... Type & Provider Type - Global Advancements, Worldwide Forecasts ... an in-depth analysis and forecasting of revenues. , ... 221 pages and in-depth TOC on “Service Quality Management ...
Breaking Biology Technology:Cambridge Semantics Announces Record Results for 2014 23D Motion Capture Just Got Easy 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4
... Four Clinical Stage Product Candidates Adds to Robust ... ... Access Pharmaceuticals, Inc.,(OTC Bulletin Board: ACCP) and MacroChem Corporation (OTC ... agreement,providing for Access to acquire MacroChem through the issuance of 2.5,million ...
... (Nasdaq: ALXN ), today announced that the Company ... Tuesday, July 29, 2008, at,10:00 a.m. Eastern Time (ET), ... the second quarter ended June 30, 2008. Alexion,anticipates releasing ... 29, 2008., To participate in this conference call, ...
... Exchange between Physician Community and Leading Biotechnology and ... ... EMD Serono, Inc. announced,today that the company has adopted ... Interactions with Healthcare Professionals.,The revised voluntary Code, which builds on ...
Cached Biology Technology:Access Pharmaceuticals Signs Merger Agreement to Acquire MacroChem Corp. 2Access Pharmaceuticals Signs Merger Agreement to Acquire MacroChem Corp. 3Access Pharmaceuticals Signs Merger Agreement to Acquire MacroChem Corp. 4EMD Serono to Adopt Revised and Strengthened PhRMA Code 2EMD Serono to Adopt Revised and Strengthened PhRMA Code 3EMD Serono to Adopt Revised and Strengthened PhRMA Code 4
... highly sensitive laser confocal systems designed for ... scanners that meet your expectations, differentiating between ... optimizing the signal on the bottom as ... range for increased sensitivity. Results with VersArray ...
... on one plate. The new ArraySlide 96 ... (7mm x 7mm) individual printing surfaces for ... analysis studies. Unlike other systems, this device ... presence of contaminating adhesives. The chamber itself ...
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... Hyb-Seal slide chambers are vapor-tight adhesive chambers ... adhesive chambers are affixed over a sample on ... one of two ports, and the ports are ... be removed and replaced to allow exchange of ...
Biology Products: