Nanotechnology can be a complicated topic with new advances being made on an almost daily basis. Many people need a resource for learning about and keeping up with changes in the field. Whether you're a student, industry professional, or just curious about the future of our world, you can use the articles and explanations on this site to keep up to speed on everything nano. Focussed around the uses of nanotechnology, UnderstandingNano also offers information about companies and research labs involved in nanotechnology, as well as descriptions of nanomaterials and lesson plans for teachers and students.
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Nanofiber mesh containing zeolites have been shown to absorb toxins in the bloodstream. Researchers believe this nanofiber can be used in compact and inexpensive blood purification systems as an alternative to dialysis.
Researchers at MIT are using nanoparticles to deliver RNA to the liver in lab studies. They believe this method may be used to treat liver diseases.
Researchers at University of Washington have developed a nanoparticle carrying proteins that works as a vaccine to stimulate immune responses. The researchers believe that this type of vaccine could be produced quickly to prevent the spread of an epidemic.
Researchers at UCLA have developed a method to fight pancreatic cancer using two different nanoparticles. The first nanoparticle removes material on the exterior of the cancer cells that block the entry of chemotherapy drugs, the second nanoparticle carries the chemothreapy drug. Testing this method on laboratory mice showed significantly faster shrinkage of the tumors than other methods.
More about Nanotechnology in Medicine
Researchers at Ames Laboratory have developed split-ring resonators made of metamaterials that can generate tera-hertz frequency signals.
Researchers at North Carolina State University have developed sensors using silver nanowires that may be useful in robots and prosthetics. The nanowire sensors can measure strain and pressure, and are flexiable enough to work over the range of motion required by prosthetics.
Researchers at Georgia Tech have demonstrated antennas made of graphene. They are working toward antennas and transceivers that would require very little power and allow communication between nanomachines.
More about Nanotechnology in Electronics
Researchers at MIT have demonstrated a type of solar cell called a thermophotovoltaic that could have much higher energy conversion than other solar cells. In this cell carbon nanotubes absorb light over a broad range of frequencies and converts the light to heat. A photonic crystal absorbs the heat and converts it to back to light at a frequency that can be absorbed by the solar cell.
Researchers at the University of Houston have demonstrated the use of cobalt oxide nanoparticles as a photocatalyst to produce hydrogen and oxygen gas from water using visible light. More work needs to be done, both to increase the energy efficiency and the lifespan of the nanoparticles, before this catalyst is commercially feasible.
Researchers at MIT have shown that iron oxide nanoparticles in water can be used to increase the amount of heat transfer out of a system at localized hot spots. The researchers believe this technique could be applied to cooling a wide range of devices, from electronics devices to fusion reactors.
More about Nanotechnology in Energy
Researchers at Rice have demonstated lightweight electrical cables made from carbon nanotubes.
NIST researchers have developed a coating made with carbon nanotubes that reduces the flammability of foam used in funiture.
Researchers have shown how to make magnesium alloy stronger. They introduced nano-spaced stacking faults in the crystalline structure of the alloy. The stacking faults prevent defects in the structure of the alloy from spreading, making the alloy stronger. The researchers believe that the techniques they used to strenghten the alloy can be implemented in existing plants, allowing a fast implementation.
Researchers at Rice University have developed a composite material using plastic and graphene nanoribbons that block the passage of gas molecules. This material may be used in applications ranging from soft drink bottles to lightweight natural gas tanks.
More about Nanotechnology in Materials
Researchers have produced yarn from carbon nanotubes coated with diamond. They believe this material can be used in thin saw blades that reduce the waste produced when cutting high cost material, such as sawing silicon ingots into wafers for the semiconductor or solar industries.
Researchers at Northwestern University have developed a desktop nanofabrication tool. The desktop tool uses beam-pen lithography arrays to create nanoscale structures.
Researchers have demonstrated a molecular motor that can be controlled by electrons from a scanning tunneling microscope tip. This motor is an initial step in building molecular motors for use in areas such as medicine.
Rolith, Inc. and Asahi Glass Company are working to bring anti-reflective glass to the architectural glass market. The glass uses a technique developed by Rolith to produce a nanostructured surface on the glass, which will reduce the glare seen from the outside of buildings.
More about Nanotechnology in Manufacturing
Using photocatalytic copper tungsten oxide nanoparticles to break down oil into biodegradable compounds. The nanoparticles are in a grid that provides high surface area for the reaction, is activated by sunlight and can work in water, making them useful for cleaning up oil spills.
Using carbon nanotubes, that have been treated with a plasma, in membranes to remove salt and organic contamination from water. Researchers believe these membranes can be used in small, inexpensive water purification devices needed in developing countries.
Using nanoscavengers, in which a layer of reactive nanoparticles coat a synthetic core which is designed to be easily magnetized. The nanoparticles, for example silver nanoparticles if bacteria is a problem, attach to or kill the pollutants. Then when a magnetic field is applied the nanoscavengers are removed from the water.
Researchers at the University of Cincinnati have demonstrated a method of removing antibiotics contaminating waterways. The method uses vesicle nanoparticles that absorb antibiotics.
Using pellets containing nanostructured palladium and gold as a catalyst to breakdown chlorinated compounds contaminating groundwater. Since palladium is very expensive the researchers formed the pellets of nanoparticles that allow almost every atom of palladium to react with the chlorinated compounds, reducing the cost of the treatment.
Using graphene as a membrane for low cost water desalination. Researchers have determined that graphene with holes the size of a nanometer or less can be used to remove ions from water. They believe this can be used to desalinate sea water at a lower cost than the reverse osmosis techniques currently in use.
More about Environmental Nanotechnology
Compiled by Earl Boysen of Hawk's Perch Technical Writing, LLC and UnderstandingNano.com. You can find him on Google+.