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A mouse that can regenerate its tissues

February 5, 2004

Researchers at the European Molecular Biology Laboratory and the University of Rome have found a way to mobilize stem cells to achieve a major regeneration of damaged tissue.

The scientists investigated muscle tissue in mice, discovering that stem cells can travel large distances to reach an injury. They also found a special form of a protein called mIGF-1 induces the muscle to send the distress signal that summons them.… read more

A moveable, flexible display made of paper

September 12, 2013

flexpad

Flexpad transforms a standard sheet of paper into a moveable, flexible display.

The technology was developed in the “Flexpad” research project under the leadership of Jürgen Steimle in the MIT Media Lab and the Max Planck Institute for Informatics in Saarbrücken, in cooperation with Kiel University.

“We routinely deform objects intuitively in many different ways. We bend back pages in books, deflate… read more

A multi-photon approach to quantum cryptography

Information breach may be drastically reduced as a result of a technology breakthrough
October 5, 2012

kak_three_stage_protocol

University of Oklahoma researchers have,  demonstrated a novel technique for cryptography that offers the potential of unconditional security.

As increasing volumes of data become accessible, transferable and, therefore actionable, information is the treasure companies want to amass.

To protect this wealth, organizations use cryptography, or coded messages, to secure information from “technology robbers.” This group of hackers and malware creators increasingly is becoming more sophisticated at… read more

A multifunctional medical nanoparticle

September 2, 2014

multitasking nanoparticles-ft

Researchers at UC Davis Comprehensive Cancer Center and other institutions have created biocompatible multitasking nanoparticles that could be used as contrast agents to light up tumors for MRI and PET scans or deliver chemo and other therapies to destroy tumors. The study was published online in Nature Communications.

“These are amazingly useful particles,” noted co-first author Yuanpei Li, a research faculty member in the Lam laboratory. “As… read more

A multifunctional nano carrier to detect, diagnose, and deliver drugs to cancer cells

October 31, 2013

uc_nano_carrier

A unique nanostructure developed by a team of international researchers* promises improved all-in-one detection, diagnoses, and drug-delivery treatment of cancer cells.

It can carry a variety of cancer-fighting materials on its double-sided (Janus) surface and within its porous interior and can:

  •  Transport cancer-specific detection nanoparticles and biomarkers to a site within the body, e.g., the breast or the prostate. This promises earlier diagnosis than is

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A Musical Score for Disease

July 18, 2008

Gil Alterovitz, a research fellow at Harvard Medical School, is developing a computer program that translates protein and gene expression into music.

In his acoustic translation, harmony represents good health, and discord indicates disease.

Using data collected from a study of protein expression in colon cancer, Alterovitz analyzed more than three thousand related proteins involved in the disease. He found four key networks, using various genetic databases that… read more

A Mysterious Link Between Sleeplessness and Heart Disease

December 26, 2008

People who don’t get much sleep are more likely than those who do to develop calcium deposits in their coronary arteries, possibly raising their risk for heart disease, a new study has found.

The researchers concluded that one hour more of sleep per night was associated with a 33 percent decrease in the odds of calcification.

Possible mechanims include higher levels of the stress hormone cortisol with less… read more

A nano ‘car’ with molecular 4-wheel drive

November 11, 2011

Caption: Measuring approximately 4x2 nanometres the molecular car is forging ahead on a copper surface on four electrically driven wheels (credit: Empa)

Scientists at the University of Groningen and Empa have created a 4 nanometer-long artificial nanoscale transport system (“car”) by synthesizing a molecule with four rotating motor units (“wheels”).

The “car” is refueled with electricity after every half revolution of the wheels. To do that, they sublimated the molecule onto a copper surface and positioned an scanning tunneling microscope (STM) tip over it, then… read more

A nanocopter camera that follows you around, streaming video to your smartphone

February 14, 2013

MeCam

Always Innovating is developing a $49. tiny flying video camera called the MeCam, due out in 2014.

The camera streams live video to your smartphone, allowing you to stream or upload videos. A nanocopter with 4 spinning rotors houses the camera, with an ARM Cortex-A9 processor, 1GB of RAM, WiFI, and Bluetooth.

The MeCam launches from the palm of a hand and hovers instantly. It streams… read more

A nanoplasmonic molecular ruler for measuring nuclease activity and DNA footprinting

October 16, 2006

Researchers have a new tool for studying interactions between proteins and nucleic acids: a nanoscale optical ruler than can detect small changes in the size of a given piece of DNA.

This work is reported in the inaugural issue of the journal Nature Nanotechnology.

The device uses gold nanoparticles, which emit light at well-defined wavelengths of light, influenced by the exact physical and chemical environment, such as DNA… read more

A nanosized, environmentally friendly hydrogen generator

Could produce hydrogen for cars and generators in the future; we meet reduced graphene oxide (rGO) in yet another radical role
September 23, 2014

Depiction of photocatalytic hydrogen evolution using platinum/titanium oxide (Pt/TiO2) interfaced with reduced graphic oxide (rGO) and photosensitive proton pump bacteriorhodopsin (bR) (credit: Peng Wang et al./ACS Nano)

A small-scale “hydrogen generator” that uses light and a two-dimensional graphene platform to boost production of hydrogen has been developed by researchers at the U.S. Department of Energy’s (DOE) Argonne National Laboratory.

While hydrogen is ubiquitous, it’s typically bonded with other elements, such as oxygen in H2O, where it must be separated to produce free hydrogen. The commercial separation process uses natural gas to react with superheated… read more

A ‘nanosubmarine’ that could deliver drug molecules to cells

July 31, 2014

The sequential transport of donors and acceptors across cell membranes with independent and dynamic nanocarriers enables energy transfer exclusively in the intracellular space with concomitant fluorescence activation (credit: Francisco Raymo, professor of Chemistry and director of the laboratory for molecular photonics, at the University of Miami College of Arts and Sciences)

Researchers at the University of Miami and the University of Ulster have created self-assembling nanoparticles that can transport drugs and other molecules into target living cells.

The new nanocarriers are just 15 nanometers in diameter, based on building blocks called amphiphilic polymers: they have both hydrophilic (water-loving, polar) and lipophilic (fat-loving) properties). That allows the nanocarriers to hold the… read more

A Nanotech Cure for Cancer?

November 8, 2005

The National Cancer Institute, which recently announced two waves of funding for nanotech training and research, sees nanotechnology as vital to its stated goal of “eliminating suffering and death from cancer by 2015.”

The first cancer nanotech applications will likely involve detection. Nanoparticles could recognize cancer’s molecular signatures, gathering the proteins produced by cancerous cells or signaling the presence of telltale genetic changes.

A nanotech fix for nicotine dependence

July 5, 2013

nicotine_nano_vaccine

Yung Chang and her colleagues at Arizona State University’s Biodesign Institute have launched an ambitious new project designed to attack nicotine dependence in a radically new way.

The research effort, pursued under a new $3.3 million grant from the National Institute of Drug Abuse, will attempt to design a vaccine conferring immunity to nicotine, using nanoscale structures assembled from DNA.… read more

A nanotechnology biosensor for Salmonella detection

March 17, 2008

An international team of researchers has built a nanoscale biosensor that detects food-borne bacteria.

The biosensor has a mix of gold and silver nanorods with antibodies to capture Salmonella bacteria. The Salmonella bacteria then cause the dye molecules to produce an enhanced fluorescence signal, even with a small number of bacteria present.

Food-borne pathogens cause approximately 76 million illnesses, 325,000 hospitalizations, and 5,000 deaths in the United States… read more

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