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Technology Research News October 20, 2004 Eric Smalley |
Wide laser makes simple tweezers Much of medical diagnostics and biomedical research involves trapping, manipulating and sorting individual cells and like-sized bits of matter. A recently demonstrated way of manipulating cells promises to be less expensive than laser tweezers. |
Technology Research News March 12, 2003 |
Lasers tweeze every which way Researchers from the University of Glasgow in Scotland have found a way to use a pair of laser beams to rotate an object in three dimensions, turning it like a ball rather than a wheel. |
Chemistry World October 31, 2012 Ian Le Guillou |
A cell for a cell If you ever need to isolate a single bacterial cell, why not build it a prison cell? This is the approach that colleagues from Sandia National Laboratories, US, have taken. Using multi-photon lithography, they can construct four walls and a roof around a single cell in just over a minute. |
Technology Research News March 26, 2003 |
Plastic coating makes chips biofriendly Electronics usually don't mix well with biological material. Sandia National Laboratories researchers have overcome the incompatibility with a microscopic laser designed to quickly measure and identify microorganisms and cell types without inhibiting biological processes. |
HHMI Bulletin February 2011 Sarah C.P. Williams |
Releasing the Brakes on Cell Fate Converting one cell type directly into another is a kind of modern-day alchemy, an ultimate goal in biological research. But unlike turning base metals into gold, changing a cell's identity is feasible, new research shows. |
HHMI Bulletin May 2010 Sarah C.P. Williams |
Young Again Niche cells can reverse the aging of stem cells. |
Chemistry World June 13, 2011 Laura Howes |
Cells turned into living lasers with fluorescent protein With a little help from a fluorescent protein, mammalian cells have been transformed into living lasers. This discovery could help improve imaging of living cells, enabling researchers to explore what's going on inside. |
Chemistry World August 2, 2011 Kate McAlpine |
Hacking into chemical cell phone calls US researchers have made a nanodevice that can eavesdrop on a cell's mutterings, and they say it could be adapted to listen in on conversations between cells. |
Reactive Reports Issue 33 David Bradley |
The Miniature Rotarians Tiny interlocking wheels are the components of a miniscule molecular rotor designed and built by UK chemists. The submicroscopic invention offers a new motor-like component for those hoping to build nanotechnology from the bottom up. |
HHMI Bulletin May 2010 Sarah C.P. Williams |
Lab-Grown Liver New cell culture system solves problem of growing liver cells. |
Technology Research News December 29, 2004 |
Molecular Motor Goes Both Ways Researchers have constructed a molecular motor that can spin in either direction, much like the biological molecular motors involved in many of life's processes. The motor could eventually be used in nanotechnology applications. |
Chemistry World November 1, 2010 Laura Howes |
Molecular motors find reverse gear Ben Feringa's group at the University of Groningen in the Netherlands been working with molecular motors for years, making small organic molecules that rotate when exposed to light. However, until now these motors have only had a forward gear. |
Technology Research News June 16, 2004 |
Laser Tweezer Grabs Varied Specks Researchers have advanced the use of optical tweezers with a method that allows them to simultaneously trap and independently manipulate microscopic materials that have different indices of refraction. |
Technology Research News April 21, 2004 Eric Smalley |
Molecule Makes Electric Motor Researchers have built molecules that can spin on command, but finding a way to harness this molecular motion to carry out work is more difficult. A molecule that has a limited range of motion opens up new possibilities. |
National Defense November 2010 Eric Beidel |
To Counter Bioterrorism, The Key is Boosting Immunity That's why Texas A&M University researchers are investigating ways to arm Americans against attacks involving toxins, viruses and bacteria. |
Chemistry World October 23, 2011 David Bradley |
Clicking Together Cultural Niches Researchers in the US have made three-dimensional hydrogels that are not only compatible with living cells but can be tuned to create specialist growing environments - culture niches - for studying cell function. |
HHMI Bulletin Aug 2010 Sarah C.P. Williams |
Fruit Fly Cells Don't All Know What Sex They Are HHMI scientists have now found that many cells in male and female fruit flies not only look the same, they are more identical at a molecular level than was previously thought. |
Chemistry World February 28, 2013 Andy Extance |
Chemical transport defines 'Goldilocks' cell size A US team has suggested molecular movement as an answer to the question of why cells are the size they are. A question that they say 'still awaits an answer from first principles'. |
Chemistry World July 21, 2011 Elinor Richards |
Cell Control to Change Cell Function US scientists can now control the reactions occurring inside cells. |
HHMI Bulletin May 2010 Ivan Arnato |
Light Moves Light is becoming the tool of choice for researchers who want to precisely manipulate neurons and other cells. |
Chemistry World April 13, 2011 Kate McAlpine |
Microrockets aim at cancer diagnostics Researchers at the University of California, San Diego, have made self-propelled microtube rockets that can find and capture cancer cells from blood samples. |
Chemistry World April 2010 |
Column: The crucible We are getting better at manipulating cells to grow into the tissues we need. Chemical factors are key, says Philip Ball |
Chemistry World October 10, 2012 Elinor Hughes |
Batteries not included Enzyme-based biofuel cells have been plugged into lobsters and they generated enough power to run a digital watch. |
Chemistry World May 5, 2011 Simon Hadlington |
Revolutionary new single-cell labelling method Researchers in the US and Canada have combined mass spectrometry with a technique called flow cytometry to follow dozens of biochemical markers on individual cells simultaneously. |
Technology Research News October 22, 2003 |
Embedded rotors mix fluids Researchers have found that it is possible to change the way fluid flows through arrays of tiny rotary motors embedded in a membrane. Minuscule motor arrays could eventually be used to sort, mix and transport molecules for medicine, biology and bioengineering applications. |
Technology Research News September 24, 2003 |
Teamed lasers make smaller spots Researchers from Boston University have tapped the properties of polarization in order to focus a laser beam more tightly in space. The method could be used to scan objects in finer detail and to make finer features in processes like rapid prototyping and photolithography. |
Chemistry World November 19, 2010 Philippa Ross |
Rise of the micro machines Microjet engines called microbots that can transport cells within a fluid to any desired location have been developed by German scientists. |
Chemistry World June 21, 2011 Manisha Lalloo |
Making Smell-o-Vision a Reality Using a Polymer Matrix A polymeric matrix of cells, which can be opened and closed individually, could bring personal 'smell-o-vision' a step closer to reality. |
AskMen.com Dave Golokhov |
Men And Skin Cancer Men are three times more likely to develop skin cancer than women. While that's not breaking news, scientists have struggled to figure out the reason why men are more susceptible, and there appears to be a breakthrough. |
Chemistry World January 13, 2010 Simon Hadlington |
Click chemistry reveals sugar synthesis in live animals US researchers have used 'click chemistry' to attach chemical tags to complex sugar molecules in the cells of live mice, allowing the synthesis of the sugars - glycans - within the cells to be tracked. |
Chemistry World June 27, 2010 Simon Hadlington |
Nanoparticles allow remote control of cells In an experiment reminiscent of the mind-control rays that featured prominently in B-movies from the 1950s, scientists in the US have used a magnetic field to alter the behavior of an animal. |
Popular Mechanics January 28, 2010 Cassie Rodenberg |
Next-Gen Transplant Techniques Can Stop Organ Rejection About 77 organ transplants are performed each day in the U.S., and more than 101,000 people are on a wait list for body parts such as hearts, skin and veins, according to the Mayo Clinic. |
PC Magazine January 18, 2006 Sebastian Rupley |
Print Me a Heart Valve The National Science Foundation has awarded $5 million to a team developing a system that takes cells from a patient with a damaged organ or heart valve and uses those cells to "print" a replacement organ. |
Chemistry World August 19, 2009 Phillip Broadwith |
Antioxidants could promote cancer Some tumor cells can actually use antioxidants to protect themselves from natural cellular defense mechanisms, enabling them to survive and proliferate. |
BusinessWeek September 23, 2010 Rob Waters |
Stem Cells That Save Big Pharma a Bundle Drugmakers hope to save big by using stem cells to test drugs for dangerous side effects long before costly human trials are needed. |
Smithsonian March 2004 |
Signal Discovery? A Los Angeles scientist says living cells may make distinct sounds, which might someday help doctors "hear" diseases |
HHMI Bulletin Winter 2013 Amber Dance |
A Trick of Light When miniSOG protein takes in blue light, it converts ordinary oxygen into a short-lived, excited state called singlet oxygen, which reacts with and changes the molecules around it. The singlet oxygen destroys the mitochondria's delicate machinery. |
Chemistry World October 7, 2012 David Bradley |
Magnetic nanoparticles zap cancer Nanoparticles can be used as a remote-controlled magnetic death switch to kill cancer cells, according to researchers from Korea. |
Chemistry World October 31, 2010 Michael Gross |
Kiss of death for cancer cells Scientists have deciphered the surprising structure of the perforin pore, which delivers the 'kiss of death' to virus-infected cells and cancer cells in the body. |
Chemistry World July 27, 2015 Tim Wogan |
Repellent nanocraters could shape tissue engineering Patterning surfaces with nanoscale craters can interfere with cells' ability to stick to surfaces, researchers in the US have shown. |
HHMI Bulletin Aug 2011 Richard Saltus |
T-Cell Booster Kits A bioengineer remodels cell surfaces to prod the immune system. |
Chemistry World December 18, 2012 Jennifer Newton |
Technique to measure chemotherapy effectiveness A technique to measure how effective chemotherapy is by studying the physical changes that occur in human cells has been developed by US scientists. |
HHMI Bulletin May 2012 Elise Lamar |
Cells on the Move The biochemical signals that set cells on a journey are as diverse as the tissues they move through, but the engine is driven by constant remodeling of a protein network built from a box of cellular Legos. |
Chemistry World July 28, 2009 Michael Gross |
DNA to direct and switch off chemo Researchers in the US have developed a new approach to cancer chemotherapy using short DNA strands to help target delivery of the drug directly to cancer cells, and 'call it off' should problems arise. |
Chemistry World April 2, 2009 Michael Gross |
Light-guided hydrogels direct cell growth Researchers in the US have developed a gel-like material whose structural and chemical properties can change in response to laser light |
Chemistry World August 31, 2012 Rebecca Brodie |
Moving microrobots with bubbles Microrobots smaller than the width of a human hair have been directed to assemble patterns made of single yeast cells and cell-laden agarose microgels using cavitation bubbles by a team from Hawaii. The robots could be used to push cells together to grow artificial tissue. |
IEEE Spectrum July 2007 Suhas Sreedhar |
Plastic Solar Cells Get a Boost by Doubling Up Scientists in Korea and California have invented a new way of boosting the efficiency of cheap plastic solar cells, making them more competitive with traditional silicon solar cells. The key is to make the solar cells in pairs. |
HHMI Bulletin Aug 2011 Cassandra Willyard |
A Faster Knockout With a virus, a needle, and an ultrasound machine, researchers have drastically cut the time it takes to disable a gene in mice. |
Chemistry World July 31, 2012 Fiona McKenzie |
Sorting the good from the bad US scientists have found a way to separate cancerous cells from healthy cells by taking advantage of their adhesion properties. Separating cancer cells for analysis is a critical step for determining the recommended course of treatment for patients. |
Chemistry World April 4, 2010 Simon Hadlington |
New electrolyte for dye-based solar cells Researchers have moved a step closer to overcoming one of the key hurdles to developing low-cost solar cells based on dye-coated titanium dioxide. |