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Tag: "material" at biology news

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...tures are created by printingvery thin layers of a material repeatedly on top of each other untilthe structure is built. Each layer is just 10 microns thick (1,000layers equals 1cm in thickness).This method allows larger tissues to be grown than previously possible.The reason for this is the way in which the ...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...mmunity, Spearneeded to collect only about as much material as a pencil eraser.Sediment samples were scooped into special sample vials and immediatelyfrozen in liquid nitrogen canisters to preserve the microbialcommunity.In springs where there was no sediment, Spear collected samples ofplanktonic organisms by...

Priming embryonic stem cells to fulfill their promise

...onicstem cells are considered the blank-slate, raw material needed torepair or replace damaged or missing liver, nerve, muscle, and othertissues and organs. However, in order to fulfill their therapeuticpromise, scientists believe that stem cells must first be coaxed todifferentiate, or mature, into precursor...

UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims

...ims; while the majority of references to published material was available, only a minority of company data-on-file documents were provided upon request; and the majority of original research cited in the ads was funded by or had authors affiliated with the product's manufacturer. In one of the largest studie...

Scientists Replicate Hepatitis C Virus in Laboratory

... that it contained only nucleic acids, the genetic material of the virus, and did not have the HCV viral envelope, a protective shell of lipids and proteins that surrounds the viral RNA in fully-formed HCV. The naked HCV construct was then placed into human liver cells in a cell culture medium. The NIDDK sci...

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...terial. That process is repeated until the genetic material is substantially representative -- at microscopic levels -- of the species from which the degraded sample was obtained. Dr. Ensley and his team hope to apply this new technology to products they will make available later this year. "We don't plan to...

Molecular machine may lead to new drugs to combat human diseases

...a molecular machine that can cut and paste genetic material is revealing possible new paths for treating diseases such as some forms of cancer and opportunistic infections that plague HIV patients. Purdue University researchers froze one of these molecular machines, which are chemical complexes known as a Gr...

Solution to Pollution: New Bacteria Eats Toxic Waste

...stems funded the biologists to examine the genetic material for the five isolates. They answered questions abo...The Department of Energy will sequence the genetic material of the microbes, and the researchers will then participate in the annotation process by which genes ...

Enzyme shown to help protect genomic stability

...tection against unwanted recombinations of genetic material or other disruptions of the genome's integrity. Genomic instability, particularly in the regions at the ends of the chromosomes known as telomeres, has been linked to aging in humans and an elevated risk for aging-related diseases, the most prominen...

Purdue proves concept of using nano-materials for drug discovery

...olds thousands of tiny vessels sitting on top of a material that contains numerous pores. This "nanoporous" material makes it possible to carry out reactions inside the vessels. The goal is to produce "laboratories-o...

Scientists rid stem cell culture of key animal cells

...ide from feeder cells, two other sources of animal material remain in stem cell culture materials. One, Matrig...nt, which is bovine in origin, is the other animal material still needed to culture stem cells. Xu became interested in unveiling molecules derived from the mo...

Essential mangrove forest threatened by cryptic ecological degradation

...anka, changing water runoff patterns, and archival material from the Dutch East-India company, the researchers show that over the past few decades contemporary irrigation projects have abused the long-standing Sri Lankan tradition of freshwater management that once sustained robust irrigation-based civilizati...

UCSD researchers maintain stem cells without contaminated animal feeder layers

...uman embryos are grown and nourished in petri dish material called feeder layers that are made with animal connective tissue, primarily mouse and calf. A recent study in Nature Medicine** by UCSD's Ajit Varki, M.D. showed that human embryonic stem cells grown in this animal-derived tissue become contaminated ...

Open microfluidic and nanofluidic systems

...sses the strong capillary forces between substrate material and liquid and takes the ‘freedomâ€TM of contact... width; and (ii) the interaction between substrate material and liquid. One has to distinguish seven different liquid morphologies which involve localized dropl...

Development of portable infectious disease detector

...method for molding micro-channelsand valves into a material similar to that used in soft contact lenses.This has given them the capability to capture, manipulate, grow andstudy single living cells in extraordinarily small containers--volumesthat are barely larger than the cells themselves.Most sensors that ha...

Nano-Probes Allow an Inside Look at Cell Nuclei

... size, they can be used to observe the transfer of material between cells. "We can have two different quantum dots in two different cells, and watch as the cells exchange their mitochondria," says Chen, adding that their technique paves the way for imaging a host of other long-term biological events. "The to...

NC State scientist finds soft tissue in T. rex bones

...ocks" through a gradual replacement of all organic material by minerals. New research by a North Carolina Stat...e removal process left behind stretchy bone matrix material that, when examined microscopically, seemed to show blood vessels, osteocytes, or bone building cell...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...he tiny movements of molecular motors that shuttle material within living cells. The motors cooperate in a del...o from one part of a cell to another. Dynein moves material from the cell membrane to the nucleus; kinesin moves material from the cell nucleus to the cell memb...

Key mechanism in genetic inheritance during cell division identified

A key mechanism in the passing of genetic material from a parent cell to daughter cells appears to have been identified by a team of Berkeley researchers. Their study may explain how a complex of proteins, called kinetochores, can recognize and stay attached to microtubules, hollow fibers in the wall...

Anti cancer virotherapy well tolerated in first human administration, research finds

...mation" as a result of the injections of the viral material and basic blood chemistry and liver enzyme levels ...ntroduction into the body of the appropriate viral material which then reproduces at a rapid rate over a short period of time, devouring the cancer cells in the...

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(Date:4/23/2014)... who have had a stroke, often suffer motor deficits ... study conducted in Taiwan, that will be published in ... is currently freely available on-line as an unedited early ... one group of stroke victims had their own peripheral ... and a similar group did not, those who received ...
(Date:4/23/2014)... the energy landscape in the U.S., but in ... the energy industry, residents and agricultural interests over ... degraded water quality is a potential risk unless ... in the ACS journal Environmental Science & ... point out that a major criticism of extracting ...
(Date:4/23/2014)... Climate fiction, or simply cli-fi, is a newly coined term ... global warming. New research from University of Copenhagen shows how ... to simulate the potential consequences of climate change and imagine ... than scientific data on changes in the atmosphere; it is ... by the books we read and the films we see. ...
Breaking Biology News(10 mins):Autologous stem cell therapy improves motor function in chronic stroke victims 2How to avoid water wars between 'fracking' industry and residents 2Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3
(Date:4/23/2014)... high-energy particles, simulating conditions astronauts would face on a ... slower reaction times, even when the radiation exposure is ... which affected a large subset, but far from ... to protein changes in the brain, the scientists say. ... suggest it may be possible to develop a biological ...
(Date:4/23/2014)... tract has long been considered to be between 180 ... have used refined microscopic techniques that indicate a much ... gastro-intestinal tract is only as large as a normal ... tract, which passes from the mouth through the esophagus ... about 5 meters in a normal adult, and is ...
(Date:4/23/2014)... American Gastroenterological Association (AGA) Research Foundation is pleased ... AGA Research Scholar Awards program, launched in 1984, ... research careers in digestive diseases. This year, the ... allowing for three consecutive years of funding. , ... are paving the way for promising research developments ...
(Date:4/23/2014)... 21, 2014 Five for-profit and non-profit organizations ... million in Proof of Concept grants to accelerate ... commercial products, the Life Sciences Discovery Fund (LSDF) ... Mentoring Program grant to the Washington Biotechnology & ... network to train the next generation of entrepreneurs ...
(Date:4/23/2014)... journal Oncotarget , explored tumour heterogeneity ... own DNA signatures within the same cancer. Such ... targeted treatment strategies. , Firstly they confirmed the ... the KRAS or BRAF mutation. Secondly, they found ... mutation have that specific mutation present uniformly throughout ...
Breaking Medicine News(10 mins):Health News:Some astronauts at risk for cognitive impairment, animal studies suggest 2Health News:Some astronauts at risk for cognitive impairment, animal studies suggest 3Health News:The surface area of the digestive tract 'only' as large as a studio apartment 2Health News:AGA announces 2014 Class of AGA Research Scholars 2Health News:LSDF announces commercialization grants and Entrepreneur Mentoring Program 2Health News:Non-uniform genetic mutations identified in lung cancers could lead to targeted treatment 2
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