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Scientists discover potential new drug delivery system

August 26, 2009

Using a peptide allows for an attached nanoparticle, such as a drug, to be delivered more effectively from the bloodstream into cells, similar to how viruses work.

Scientists discover previously unknown cleansing system in brain

Newer imaging technique discovers "glymphatic system"; may hold key to preventing Alzheimer’s disease
August 16, 2012

Glymphatic system (credit: Jeffrey J. Iliff et al./Science Translational Medicine)

A previously unrecognized system that drains waste from the brain at a rapid clip has been discovered by neuroscientists at the University of Rochester Medical Center.

The highly organized system acts like a series of pipes that piggyback on the brain’s blood vessels, sort of a shadow plumbing system that seems to serve much the same function in the brain as the lymph system does… read more

Scientists discover protein that can slow brain tumor growth in mice

May 14, 2014

MRI image of glioblastoma (credit: Wikipedia commons)

Biochemists have identified a protein that can be used to slow down or speed up the growth of glioblastoma brain tumors in mice.

A preclinical study led by Eric J. Wagner, Ph.D., and Ann-Bin Shyu, Ph.D., of The University of Texas Health Science Center at Houston (UTHealth) and Wei Li, Ph.D., of Baylor College of Medicine appear in Nature.

“Our work could lead to… read more

Scientists discover record-breaking hydrogen storage materials for use in fuel cells

November 11, 2007

Scientists at the University of Virginia have discovered a new class of hydrogen storage materials that could make the storage and transportation of energy much more efficient and affordable through higher-performing hydrogen fuel cells.

The materials absorb hydrogen up to 14 percent by weight at room temperature, vs. 7 to 8 percent of hydrogen, for most current materials, and only at cryogenic temperatures.

Scientists discover why a specific cancer drug is so effective

April 29, 2013

rituximab_cancer_cells

Scientists from the Manchester Collaborative Center for Inflammation Research (MCCIR) have discovered why a particular cancer drug is so effective at killing cells. Their findings could be used to aid the design of future cancer treatments.

Professor Daniel Davis and his team used high quality video imaging to investigate why the drug rituximab is so effective at killing cancerous B cells. It is widely used… read more

Scientists Dish Up Rice Vaccine to Fight Cholera

June 12, 2007

Japanese researchers have created a strain of rice that can act as a vaccine and last for more than a year and a half at room temperature.

Immunologist Hiroshi Kiyono of the University of Tokyo and his colleagues inserted the genetic material from the microbe responsible for producing cholera toxin into a rice plant, whose genome has recently been sequenced. The plants produced the toxin and when the rice… read more

Scientists divided over longevity

March 29, 2006

Aubrey de Grey’s claims for long life based on SENS (Strategies for Engineered Negligible Senescence) have drawn criticism from some gerontologists.

Scientists Dubious of Quantum Claims

February 19, 2007

Independent quantum computing researchers said they are dubious of some of the claims made by D-Wave Systems Inc. because the company has not yet submitted its findings for peer review.

The company did not make the machine available for inspection and instead showed video from a remote location.

Scientists embed nanotubes in hybrid semiconductors

February 6, 2004

Scientists from the University of Copenhagen claim to have made the first electronic hybrid nanotube-semiconductor devices. They encapsulated single-walled carbon nanotubes in epitaxially grown semiconductor structures.

The development opens up possibilities for designing hybrid nanotube/semiconductor devices, where nanotubes act as interconnects in traditional semiconductor integrated circuits or as active devices.

Scientists embrace technology for cyberhugs

November 29, 2005

Singapore scientists have devised a vibration jacket for chickens controlled with a computer that gives the animal the feeling of being touched by its owner.

The next step would be to use the same concept to transmit hugs over the Internet, researchers at Nanyang Technological University said.

Scientists evolve huge hyperswarming pathogenic bacteria with multiple whipping flagella

What could go wrong?
August 19, 2013

The evolution of hyperswarming, pathogenic bacteria might sound like the plot of a horror film, but such bugs really have repeatedly evolved in a lab, and the good news is that they should be less of a problem to us than their less mobile kin. That's because those hyperswarmers, adorned with multiple whipping flagella, are also much worse at sticking together on surfaces in hard-to-treat biofilms. They might even help us figure out a way to develop anti-biofilm therapies for use in people with cystic fibrosis or other conditions, say researchers who report their findings in Cell Reports, a Cell Press publication, on Aug. 15.</p>
<p>Credit: Cell Reports, van Ditmarsch et al.

Memorial Sloan Kettering Cancer Center researchers have evolved hyperswarming pathogenic bacteria adorned with multiple whipping flagella — all the way down to the molecular level — and plan to unleash them in a laboratory.

That’s a good thing — or so say researchers in Cell Reports, a Cell Press publication (open access). The idea is to develop anti-biofilm therapies for use in people with cystic fibrosis… read more

Scientists Explore Ways to Lure Viruses to Their Death

March 28, 2007

Scientists are exploring a fundamentally different strategy to fight viruses. They want to wipe them out by luring them to their destruction, like mice to mousetraps.

Scientists explore what happened before the universe’s theoretical beginning

September 24, 2008

Some of the top minds in what happened “pre-big bang” gathered at Columbia University earlier this month, proposing theories ranging from “the big bounce,” to “the multiverse,” “the cyclic theory,” “parallel worlds,” and even “soap bubbles.”

Some propose the existence of multiple universes. Others hold that there’s one universe that recycles itself endlessly.

Scientists extend telomeres to slow cell aging

A modified RNA that encodes a telomere-extending protein to cultured human cell yielded large numbers of cells for study
January 26, 2015

Human chromosomes (gray) capped by telomeres (white) (credit: Wikimedia Commons)

Scientists at the Stanford University School of Medicine have developed a new procedure that uses modified messenger RNA to quickly and efficiently increase the length of human telomeres, the protective caps on the ends of chromosomes that are associated with aging and disease.

Treated cells behave as if they are much younger than untreated cells, multiplying with abandon in the laboratory dish rather than stagnating… read more

Scientists fabricate first plasma transistor

November 13, 2008

Researchers at the University of Illinois at Urbana-Champaign developed a rugged microplasma transistor by integrating a conventional microcavity plasma device with an electron emitter.

The microplasma transistor could be used as an improved transistor in high-resolution displays for cell phones, portable DVD players, environmental sensors (producing plasmas in air samples and detecting light produced by pollutants) and biomedical diagnostics.

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