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Scientists Close to Reconstructing First Living Cell

June 12, 2008
(Janet Iwasa)

Harvard Medical School researchers have built a model of what they believe in the first living cell on Earth (3.5 to 4 billion years ago), containing a strip of genetic material surrounded by a fatty membrane and capable of replicating.

Scientists closer to universal flu vaccine after pandemic ‘natural experiment’

September 25, 2013

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Scientists have moved closer to developing a universal flu vaccine by using the 2009 pandemic to study why some people seem to resist severe illness.

Researchers at Imperial College London asked volunteers to donate blood samples just as the swine flu pandemic was getting underway and report any symptoms they experienced over the next two flu seasons.

They found that those who avoided severe… read more

Scientists coax gold particles to emit light strong enough to view single nanoparticles

May 25, 2005

Researchers have demonstrated that gold particles comparable in size to a molecule can be induced to emit light so strongly that it is readily possible to observe a single nanoparticle, using a technique called multiphoton absorption induced luminescence.

This could allow for tracking a single molecule of a drug in a cell or other biological sample.

Other advantages of the technique are that the gold particles can be… read more

Scientists Control Living Cells With Light; Advances Could Enhance Stem Cells’ Power

August 14, 2009

Light energy can gently guide and change the orientation of living cells within lab cultures — possibly a major step in harnessing the healing power of stem cells and guiding them to areas of the body that need help — University of Central Florida researchers have shown.

Scientists copy the ways viruses deliver genes

August 11, 2011

National Physical Laboratory (NPL) scientists have mimicked the ways viruses infect human cells and deliver their genetic material, hoping to apply the approach to gene therapy to correct defective genes such as those that cause cancer.

The researchers used the GeT (gene transporter) model peptide sequence to transfer a synthetic gene encoding for a green fluorescent protein — a protein whose fluorescence in cells can be… read more

Scientists Crack Code for Motor Neuron Wiring

November 4, 2005

Howard Hughes Medical Institute (HHMI) researchers have deciphered a key part of the regulatory code that governs how motor neurons in the spinal cord connect to specific target muscles in the limbs.

The researchers said that understanding this code may help guide progress in restoring motor neuron function in people whose spinal cords have been damaged by trauma or disease. The studies suggest that the code — which involves… read more

Scientists creat tiniest uniform, precisely shaped organic nanoparticles for delivering organic materials into the human body

June 21, 2005

University of North Carolina at Chapel Hill chemists have developed a method of creating the world’s tiniest manufactured particles — less than 100 nanometers — for delivering drugs and other organic materials into the human body.

Until now, most current techniques for particle formation were incompatible with organic materials, according to Dr. Joseph M. DeSimone, professor of chemistry and chemical engineering at UNC and N.C. State University.

That… read more

Scientists Create 3D Models of Whole Mouse Organs

June 25, 2010

Collagen fibers (in green) outline the bronchiole pathways against a background of elastin tissue (in red) in this high-resolution image of a mouse lung. (Michael Leven/Yale)

Yale University engineers have for the first time created 3D models of whole intact mouse organs.

Combining an imaging technique called multiphoton microscopy (using light to excite naturally fluorescent cells within the tissue) with “optical clearing” (using a solution that renders tissue transparent), the researchers were able to scan mouse organs and create high-resolution images of the brain, small intestine, large intestine, kidney, lung and testicles.… read more

Scientists create animals that are part-human

May 2, 2005

The biological co-mingling of animal and human is now evolving into exotic and unsettling mixes of species, evoking the Greek myth of the monstrous chimera, which was part lion, part goat and part serpent.

Particularly worrisome to some scientists are the nightmare scenarios that could arise from the mixing of brain cells: What if a human mind somehow got trapped inside a sheep’s head?

Scientists create artificial proteins from evolutionary ‘rules’

September 23, 2005

Scientists have created artificial proteins based on a set of simple “rules” that nature appears to use to design proteins. The artificial proteins look and function just like their natural counterparts.

The UT Southwestern Medical Center researchers tested the “rules” gleaned from the evolutionary record by feeding them into a computer program they developed. The program generated sequences of amino acids, which the researchers then “back-translated” to create artificial… read more

Scientists Create Breakthrough Sensor Capable of Detecting Individual Molecules

July 9, 2007

Applied physicists at the California Institute of Technology have figured out a way to detect single biological molecules with a microscopic optical device.

The method has already proven effective for detecting the signaling proteins called cytokines that indicate the function of the immune system, and it could be used in numerous medical applications, such as the extremely early detection of cancer and other diseases, as well as in basic… read more

Scientists create femtosecond atomic X-ray laser

January 27, 2012

Xray Laser350

Lawrence Livermore Lab (LLNL) scientists and international collaborators have created the shortest, purest X-ray laser pulses ever achieved, fulfilling a 45-year-old prediction and ultimately opening the door to new medicines, devices and materials.

The researchers aimed radiation from the Linac Coherent Light Source (LCLS), located at the Stanford Linear Accelerator Center (SLAC), at a cell containingneon gas, setting off an avalanche of femtosecond-duration
X-ray emissions… read more

Scientists create fifth form of carbon

March 24, 2004

Researchers at the Australian National University in Canberra have created a new form of carbon: an intersecting web of nanosize carbon tubes formed at temperatures of around 10,000 degrees C.

“Nanofoam” could one day help treat cancer by absorbing infrared heat and enhance MRI scans because of its magnetic properties.

Scientists create first quantum processor

June 29, 2009

A team led by Yale University researchers has created the first rudimentary two-qubit solid-state quantum processor, taking another step toward building a quantum computer.

Scientists create first free-standing 3D cloak

January 31, 2012

3dcloak1

Researchers led by the University of Texas at Austin have cloaked a three-dimensional object standing in free space, bringing the invisibility cloak one step closer to reality.

The researchers used “plasmonic metamaterials” to hide an 18-centimeter cylindrical tube from microwaves.

When light strikes an ordinary object, it rebounds off its surface towards another direction, just like throwing a tennis ball against a wall. The reason we… read more

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