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Chemistry World August 19, 2009 Hayley Birch |
Gold nanoparticles detect cancer Chinese scientists have used gold nanoparticles as ultrasensitive fluorescent probes to detect cancer biomarkers in human blood. |
Bio-IT World Jul/Aug 2006 Robert M. Frederickson |
Tests for Hospital-Acquired Infections Tests for pathogens increasingly rely on genomic methods that identify specific genetic signatures of bacteria or viruses. Rapid detection of other pathogens also provides the potential for significant impact on the healthcare industry. |
Chemistry World January 11, 2008 John Bonner |
DNA Nanoparticles Detect Gene Expression US scientists have made nanoparticles from DNA that they say could be used to identify the genes being expressed in a single cell. |
Technology Research News February 25, 2004 |
Nanowires spot DNA mutation Nanowire sensors could eventually be built into labs-on-a-chip that could be used for medical diagnostics and pathogen detection in the field, and for drug discovery. |
Chemistry World October 7, 2011 Sarah Farley |
Detecting diseases with DNA sensors DNA sensors detect pathogenic and genetic diseases by binding to target DNA strands that are related to the disease and giving a signal that shows how much of the DNA is present. |
Chemistry World October 20, 2009 James Urquhart |
Gold nanoparticles give super sensitive cancer test The recurrence of prostate cancer could soon be spotted years earlier thanks to a new highly sensitive test developed by US and Austrian researchers. |
Chemistry World June 12, 2013 Sarah Houlton |
No small success Chad Mirkin has been the driving force behind four spin-out nanotechnology companies, and has more than 850 patents to his name. Yet he describes himself as something of an accidental chemist. He is particularly proud of spherical nucleic acids. |
Chemistry World July 15, 2008 |
Raman Reveals DNA in Action Researchers at the University of Strathclyde, UK, have been able to use Raman spectroscopy to observe strands of DNA pairing up and falling apart by attaching them to silver nanoparticles. |
Chemistry World November 27, 2007 James Mitchell Crow |
A Flare for Gene Silencing US scientists have developed nanoparticle probes coated with DNA that release fluorescent 'flares' when they silence genes inside cells. |
Bio-IT World November 14, 2003 Elizabeth Gardner |
Ultimate Analysis With the necessary tools at hand, the race is on to build -- and market -- the first affordable, portable, fully functional DNA analyzer. Is the world ready? |
Chemistry World September 7, 2012 Andrew Shore |
Groundwater arsenic detector Groundwater contaminated with arsenic has led to an epidemic of arsenic poisoning in parts of Bangladesh and India. Scientists in China have developed a sensor to detect arsenic quickly and accurately in water. |
Technology Research News December 11, 2002 Kimberly Patch |
DNA prefers diamond DNA is particularly useful for sensing pathogens like those used in biological weapons. The trick to making sensors that can be used in the field may involve attaching strands of DNA to a thin film of diamond, preparing sensors to withstand the rigors of the real world. |
Chemistry World May 16, 2007 Tom Westgate |
DNA Photography It is a technology that is fast disappearing in the digital age. But black and white photography is more than an archaic art-form to a team of German chemists who have used it as the basis for a simple method of detecting labeled DNA molecules at attomole levels. |
Reactive Reports Issue 54 David Bradley |
Hula-Hoop DNA Amplification Periodic nanostructures made of gold nanoparticles and long DNA strands with repeated sequences have been prepared by using a technique known as "rolling circle amplification" or the "hula-hoop" technique. |
Technology Research News August 25, 2004 |
DNA Copier Uses Little Power Today's laboratory DNA detectors require a lot of energy. Researchers have devised a method that copies the way DNA is replicated biologically in order to avoid the energy-intensive heating and cooling process. |
Chemistry World November 2, 2010 Hayley Birch |
Nanoparticle detector promises fast virus identification The technique, developed by US researchers, can discriminate between different viruses and is sensitive enough to detect the presence of a single virus particle. |
Technology Research News July 30, 2003 Eric Smalley |
Chip senses trace DNA Handheld detectors could one day allow you to monitor your body for cancer, your water for chemicals, and your food for bacteria. This requires inexpensive electronics that are capable of detecting trace amounts of substances. One candidate is a chip containing DNA-tipped carbon nanotubes. |
Chemistry World May 1, 2012 David Bradley |
A colorful way to size up nanoparticles Researchers in China have now developed a straightforward light-scattering technique to estimate the size of gold nanoparticles in the 35 to 110nm range. |
Chemistry World March 15, 2010 James Urquhart |
All aboard the DNA nanotube Cargo-carrying DNA nanotubes that can rapidly release their load on demand have been made for the first time by Canadian researchers. |
Chemistry World May 2010 Derek Lowe |
Column: In the pipeline The author wonders whether tagging molecules with fluorescent labels for assay is like tracking the members of a shoal of fish by tying each one to a whale. In the pharmaceutical business, our work absolutely lives and dies by assay results. |
Chemistry World November 25, 2011 Jon Evans |
Cancer diagnosis goes for gold Gold nanoparticles could help diagnose a wide range of different cancers by detecting telomerase activity within cells, say Chinese chemists. |
Chemistry World April 10, 2015 Matthew Gunther |
Silicon chip spots dangerous pathogens in human blood Scientists in China have developed a silicon chip doped with silver nanoparticles that can rapidly detect different pathogens in blood samples. |
Chemistry World July 18, 2014 Melissae Fellet |
Molecular computer calculates Ebola diagnosis A molecular computer could one day simplify analysis of biomedical assays like those used to diagnose Ebola, researchers say. |
Chemistry World June 2, 2015 Tim Wogan |
Simple sensor can spot cancer markers in minutes An electrochemical sensor that can detect specific mutant nucleic acids from cancers in blood samples could allow quick and cheap 'liquid biopsies'. |
Chemistry World February 22, 2009 Phillip Broadwith |
Reading DNA Base by Base A technique to electrically detect individual DNA bases cut from a single strand of DNA has been developed by researchers in the UK. |
Chemistry World June 26, 2008 Bea Perks |
Liquid Crystals Stand up for DNA Detection Liquid crystals that realign in response to DNA can reveal subtle sequence alterations, even a single base mutation, report US scientists. |
Technology Research News October 6, 2004 |
Chip spots DNA electrochemically A microelectrochemical method of reading DNA chips could be used in portable detectors. It could be use practically in two to five years, according to the researchers. |
Bio-IT World Dec2006 /Jan 2007 Robert M. Frederickson |
Microarrays for Methylation Recent data suggest altered gene methylation patterns contribute to tumor development. Orion Genomics has developed two methods for enzymatic DNA methylation screening. |
PC Magazine July 13, 2005 John R. Quain |
DNA Printing Press A group of scientists believes it has an inexpensive nanoprinting technique that could lead to the mass production of DNA-based chips that could revolutionize disease detection. |
Chemistry World January 20, 2011 James Urquhart |
SNPs on display DNA origami and atomic force microscopy have been combined to reliably detect and image single nucleotide polymorphisms, the most common form of genetic variation in the human genome. |
Bio-IT World September 2006 Robert M. Frederickson |
Assays and Knowledgebases for Genomic Analysis An important aspect of any genomic analysis -- whether expression profiling or analysis of DNA-binding elements as above -- is the integration of the data with existing knowledge. |
Technology Research News December 3, 2003 Kimberly Patch |
DNA assembles nanotube transistor Scientists have caused a transistor to self-assemble from a test tube concoction of DNA, proteins, antibodies, carbon nanotubes and minuscule specks of silver and gold. The feat shows that it is possible to assemble the smallest of machines and electronic devices by harnessing DNA's properties. |
Chemistry World July 17, 2012 Harriet Brewerton |
Pinning down cancer US scientists have synthesized pin-shaped nanoparticles with magnetic and optical properties. The nanoparticles could be used for magnetic resonance imaging, early detection and photothermal therapy of cancer and other diseases. |
Chemistry World November 17, 2010 Jon Cartwright |
DNA origami meets low-cost lithography Chemists in the US have developed an easy way to integrate the 'bottom up' assembly of DNA origami with the 'top down' patterning of low cost lithography. |
Chemistry World January 30, 2008 Jonathan Edwards |
DNA Helps Nanoparticles Crystallize Two papers in Nature have each shown a simple way to build designer crystals from nanoparticles, using DNA as 'glue'. Both methods show promise as a cheap way of mass-producing complex materials like photonic crystals. |
HHMI Bulletin February 2012 Sarah C. P. Williams |
Force Factor In the context of cells, forces are required to move molecules. Quantifying these forces gives scientists a way to compare and contrast different molecular motors. |
Technology Research News December 29, 2004 |
DNA Makes and Breaks Particle Clumps Nanotechnology is all about manipulating materials on the molecular scale. Many teams of researchers are using artificial strands of DNA to do so. |
Industrial Physicist |
Biomimetic Nanotechnology Although biomimetic nanotechnology is in its infancy, with no applications yet reaching commercialization, the barriers in some cases lie mainly in scaling up production processes to industrial levels. |
Chemistry World July 4, 2010 Hayley Birch |
DNA sticks at flick of switch A new technique that sticks individual DNA molecules to a gold surface works at the flick of an electrochemical switch. |
Chemistry World January 2012 |
DNA motors on With the relentless rise of DNA nanotechnology's popularity, Emma Davies explores the role chemistry has played in its success |
Chemistry World February 11, 2011 Elinor Richards |
Thirty minute flu gene detector Scientists in Japan have developed a portable influenza testing kit with better accuracy than current methods, which can give a result in 30 minutes. |
Chemistry World May 9, 2008 Simon Hadlington |
All-in-one gene detection on a chip Scientists in Singapore have invented a tiny machine that can rapidly prepare, purify and genetically analyse blood or other biological samples in less than 20 minutes. |
Wired July 24, 2007 Thomas Goetz |
The Ultimate Diagnostic Device (By the Way, You've Got Drug-Resistant TB!) The CDC's goal of a tuberculosis-free society grew short due to the development of drug-resistant strains. But new standards for detection are in the works. |
Industrial Physicist Aug/Sep 2003 Jennifer Ouellette |
A new wave of microfluidic devices Flexibility and a variety of uses are the key |
Chemistry World February 6, 2008 Simon Hadlington |
Better Detection of DNA Synthesis Researchers in the US have developed a new way to detect DNA synthesis in living cells by using click chemistry -- the concept of reacting together two 'high energy' molecules that 'click' together efficiently under mild conditions. |
Chemistry World September 2, 2007 Lewis Brindley |
Nanoparticles Paint a Finer Picture Swiss scientists have developed a process that can print detailed images using nanoparticles as 'ink', while maintaining their catalytic and optical properties. |
Chemistry World October 13, 2015 Simon Hadlington |
DNA movement through motor proteins measured Researchers have adapted a method for DNA sequencing to measure directly and with exquisite sensitivity the movement of a single molecule of DNA as it is drawn through specialized motor proteins. |
IEEE Spectrum April 2005 Prachi Patel Predd |
Riding Life's Twists and Turns How a strand of DNA launched the co-founder of Nanogen's career in the technology behind DNA microarrays. |
Chemistry World October 24, 2012 |
Less is more for DNA reactions A technique allowing the use of small amounts of DNA for efficient DNA-directed chemistry has been developed by scientists in Germany. |
Chemistry World August 9, 2012 Jon Cartwright |
'Genetic code' guides nanoparticle growth Researchers in the US and China have demonstrated that DNA can also be used as a blueprint for the creation of non-biological structures. Their 'genetic code' could pave the way for tailored nanoparticles -- fit for use as catalysts, or in surface-enhanced Raman spectroscopy. |