Bio & Medicine news

Nano-sized voltmeter measures electric fields deep within cells

Nanotechnology / Bio & Medicine

created Nov 30, 2007 | popularity 5 / 5 (25) | comments 3

A wireless, nano-scale voltmeter developed at the University of Michigan is overturning conventional wisdom about the physical environment inside cells. It may someday help researchers tackle such tricky medical issues as ...


New nanoparticle vaccine is more effective but less expensive

Nanotechnology / Bio & Medicine

created Sep 17, 2007 | popularity 4.9 / 5 (25) | comments 0

Good news for public health: Bioengineering researchers from the EPFL in Lausanne, Switzerland, have developed and patented a nanoparticle that can deliver vaccines more effectively, with fewer side effects, and at a fraction ...


Chemists create 'nanorobotic' arm to operate within DNA sequence

Nanotechnology / Bio & Medicine

created Dec 07, 2006 | popularity 4.3 / 5 (28) | comments 0

New York University chemistry professor Nadrian C. Seeman and his graduate student Baoquan Ding have developed a DNA cassette through which a nanomechanical device can be inserted and function within a DNA array, allowing ...


How buckyballs hurt cells

Nanotechnology / Bio & Medicine

created May 27, 2008 | popularity 4.5 / 5 (26) | comments 0

A new study into the potential health hazards of the revolutionary nano-sized particles known as ‘buckyballs’ predicts that the molecules are easily absorbed into animal cells, providing a possible explanation for how the ...


Study: Religion colors Americans' views of nanotechnology

Nanotechnology / Bio & Medicine

created Feb 15, 2008 | popularity 3.9 / 5 (30) | comments 15

Is nanotechnology morally acceptable? For a significant percentage of Americans, the answer is no, according to a recent survey of Americans' attitudes about the science of the very small.


Gold nanorods shed light on new approach to fighting cancer

Nanotechnology / Bio & Medicine

created Oct 16, 2007 | popularity 4.7 / 5 (25) | comments 0

Researchers have shown how tiny "nanorods" of gold can be triggered by a laser beam to blast holes in the membranes of tumor cells, setting in motion a complex biochemical mechanism that leads to a tumor cell's self-destruction.


Researchers use heated nanoprobes to destroy breast cancer cells in mice

Nanotechnology / Bio & Medicine

created Mar 06, 2007 | popularity 4.2 / 5 (28) | comments 0

In experiments with laboratory mice that bear aggressive human breast cancers, UC Davis researchers have used hot nanoprobes to slow the growth of tumors -- without damage to surrounding healthy tissue. The researchers describe ...


Quantum Dots

Gene silencer and quantum dots reduce protein production to a whisper

Nanotechnology / Bio & Medicine

created Jun 23, 2008 | popularity 4.6 / 5 (25) | comments 1

More than 15 years ago scientists discovered a way to stop a particular gene in its tracks. The Nobel Prize-winning finding holds tantalizing promise for medical science, but so far it has been difficult to ...


Gold Nanoparticles Shine Brightly in Tumors

Nanotechnology / Bio & Medicine

created Jan 16, 2008 | popularity 4.2 / 5 (27) | comments 0

Solid gold nanoparticles have long been used to treat rheumatoid arthritis and more recently have shown promise in treating various types of cancer. Now, thanks to work by Shuming Nie, Ph.D., and his colleagues at the Emory-Georgia ...


Membrane Sorts Molecules

50 atoms thick membrane sorts individual molecules

Nanotechnology / Bio & Medicine

created Feb 14, 2007 | popularity 4.4 / 5 (26) | comments 0

A newly designed porous membrane, so thin it's invisible edge-on, may revolutionize the way doctors and scientists manipulate objects as small as a molecule.


Nanoparticles used in common household items caused genetic damage in mice

Nanotechnology / Bio & Medicine

created Nov 16, 2009 | popularity 4.8 / 5 (24) | comments 11

Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...


Switched-on new nanotechnology paints for hospitals could kill superbugs

Nanotechnology / Bio & Medicine

created Sep 09, 2008 | popularity 4.5 / 5 (25) | comments 0

New nanotechnology paints for walls, ceilings, and surfaces could be used to kill hospital superbugs when fluorescent lights are switched on, scientists heard today at the Society for General Microbiology's Autumn meeting ...


Nanotech researchers discover cancer cells 'feel' much softer than normal cells

Nanotechnology / Bio & Medicine

created Dec 02, 2007 | popularity 4.8 / 5 (23) | comments 1

A multidisciplinary team of UCLA scientists were able to differentiate metastatic cancer cells from normal cells in patient samples using leading-edge nanotechnology that measures the softness of the cells.


IBM Cantilever end with virus sample

Researchers Create Microscope With 100 Million Times Finer Resolution Than Current MRI

Nanotechnology / Bio & Medicine

created Jan 13, 2009 | popularity 4.5 / 5 (24) | comments 8

(PhysOrg.com) -- IBM Research scientists, in collaboration with the Center for Probing the Nanoscale at Stanford University, have demonstrated magnetic resonance imaging (MRI) with volume resolution 100 million ...


Researchers Develop New Nanomaterials to Deliver Anticancer Drugs to Kill Cancer Cells

Researchers Develop New Nanomaterials to Deliver Anticancer Drugs to Kill Cancer Cells

Nanotechnology / Bio & Medicine

created Jun 07, 2007 | popularity 4.5 / 5 (24) | comments 0

Researchers at UCLA have successfully manipulated nanomaterials to create a new drug-delivery system that promises to solve the challenge of the poor water solubility of today’s most promising anticancer drugs ...