Tag: "biofilms" at biology news
'Conversation stoppers' fight deadly bacterial infections
...signals also trigger the bacteria to produce slimy biofilms
that cloak the bacteria and make the colony physically resistant to antibiotics. Attempts to block bacterial quorum sensing are being conducted by a growing number of research groups. Many of these studies have focused on a group of small molecules...
ACS Weekly PressPac -- September 6, 2006
...us cells, known as biofilms, Stewart said. These biofilms
account for up to 65 percent of the bacterial infections in the United States, according to the U. S. Centers for Disease Control and Prevention. The researchers say that while chitosan is well known for its antimicrobial activity, this is the first ...
Search on for treatment of slow-healing wounds
...hase equipment for its investigation into the role biofilms
play in chronic wounds. The money will be distribu...eating up to 100 patients daily, Wolcott suspected biofilms
might play a role in his patients' persistent wounds. Tissue samples analyzed by the CBE from Wol...
Binghamton University researcher makes major biofilm dispersion breakthrough
...overy of a molecule that induces the dispersion of biofilms
will likely mean a sea change in health care, manu...umers worldwide. Name a manufacturing process and biofilms
are probably a serious and costly issue. They have even been discovered in pipes at factories produc...
Diversity promotes cooperation among microbes
...ellular structures called biofilms. P. fluorescens biofilms
are formed when individual cells overproduce a pol...ers then manipulated diversity within experimental biofilms
and found that diverse biofilms
contained fewer cheats and can produce larger groups than non-divers...
Researchers report initial success in promising approach to prevent tooth decay
...s throughout the body. According to one estimate, biofilms
may be involved to varying degrees in up to 80 percent of human infections. "We've already moved the S. mutans STAMP into human studies, where it can be applied as part of a paste or mouthrinse," said Dr. Wenyuan Shi, senior author on the paper an...
ACS News Service Weekly PressPac -- Oct. 18, 2006
...ia produce to defend themselves from attack. These biofilms
threaten medical implants, fuel tanks in jet planes and even dental health, Everts notes in the article. While scientists still do not know all of the secrets behind bacterial conversations, they are moving closer toward stopping some of bacteria's m...
Genes and groups of genes commonly shared between species, studies show
...t Baker, Banfield and colleagues reported that the biofilms
harbor novel archaeal organisms that appear to be extremely small compared to other life forms. "Analysis of how microorganisms respond to their environments and the role of exchange of genetic material in adaptation and evolution is important if w...
Pioneering approach to wastewater treatment earns Stanford engineer the 2007 Stockholm Water Prize
...also noted that McCarty's recent work on microbial biofilms
"has wide-ranging implications for the design of treatment systems. The landmark studies on biofilms
provide useful tools for understanding the performance of microbial processes and scaling the result...
Counting heads or measuring space?
...s taken into consideration: on root surfaces or in biofilms
related organisms often form clonal micro-colonies. Since in this case all relatives are in the immediate proximity, they are also most likely to encounter the signal substances and the reactions triggered by the signal substances strangers are larg...
Microbes at work cleaning up the environment
...aggregation in sulfate-reducing bacteria dominated biofilms
collected from the Piquette Mine, a flooded system in southwestern Wisconsin. The team found that organic nitrogen was highly concentrated in all of the zinc-sulfide aggregates, indicating a high protein or polypeptide content relative to inorganic...
Reap what your ancestors sowed
...g, durable entities like buildings, ants nests, or biofilms
in bacteria, then you introduce an instability, he says. Its almost as if there is a pact with the devil, because you pay nothing now for your cheating, but you pay double tomorrow, because everyones cheating and the costs come home to roost. With ...
MIT, BU team builds viruses to combat harmful 'biofilms'
...ineering viruses to attack and destroy the surface biofilms
that harbor harmful bacteria in the body and on in...ion of Health Sciences and Technology. Bacterial biofilms
can form almost anywhere, even on your teeth if you don't brush for a day or two. When they accumula...
Bacteria may not hasten death
...oscopy to visualize structures resembling bacteria biofilms
on the surface of older flies. Tower and co-author Chunli Ren, a graduate student, took bacteria samples from the surface and interior of the flies throughout their life span, confirming that the axenically grown flies were bacteria-free and that b...