News and information Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015controlled Release of Anticorrosive Materials in Spot by Nanocarriers May 27th, 2015production of Copper Cobaltite Nanocomposites with Photocatalytic Properties in Iran
-Legislation/Regulation/Funding/Policy Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015one step closer to a single-molecule device:
2015nanomedicine Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015dna Double Helix Does Double Duty in Assembling Arrays of Nanoparticles:
Scientists Use Magnetic field to Transfer Anticancer Drug to Tumor Tissue May 24th, 2015discoveries Who needs water to assemble DNA?
2015announcements Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015controlled Release of Anticorrosive Materials in Spot by Nanocarriers May 27th, 2015production of Copper Cobaltite Nanocomposites with Photocatalytic Properties in Iran
2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015controlled Release of Anticorrosive Materials in Spot by Nanocarriers May 27th, 2015production of Copper Cobaltite Nanocomposites with Photocatalytic Properties in Iran
2015nanobiotechnology Who needs water to assemble DNA? Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015dna Double Helix Does Double Duty in Assembling Arrays of Nanoparticles:
pyrrole, ferric chloride (Fecl3), ethanol and water--which makes it cheap enough and enables large-scale fabrication,
According to the researcher, the mechanical strength, degradability, water sorption and inorganic bioactivity of the produced nanocomposite scaffold have been evaluated by carrying out various tests
Based on the results, the interaction between the organic and inorganic phases increases mechanical properties and water sorption of silk fibroin/chitosan/alumina scaffold.
"We observed that the scroll formation was inhibited in the presence of a water layer, therefore causing higher friction,"explained co-author Argonne computational nanoscientist Subramanian Sankaranarayanan.
and prey in dark waters, butterflies create colors from nanostructures in their wings, honey bees can see
and transported a patch of the nanowire carpet on water droplets that were used used to deliver it to the site of injury.
water-soluble QDS in the July 1 issue of the journal Green Chemistry. This is the first example of engineers harnessing nature's unique ability to achieve cost effective and scalable manufacturing of QDS using a bacterial process.
The solution yields extracellular, water-soluble quantum dots from low-cost precursors at ambient temperatures and pressure.
Carrying out all reactions in the green solvent of water use of biological reactant and elimination of toxic and polluting materials
High power density, clean emissions (water), low temperature operation, rapid start-up and shutdown, and ability to use fuels from renewable sources are several reason why fuel cells such as PEMFC have attracted attention for large market applications,
Hydrogen and oxygen generated by splitting water using photosynthesis can be used as a fuel for PEMFC.
2). Fuel cells generate electricity by combining hydrogen gas with oxygen to produce water (figure 1). Although that sounds perfectly clean and green,
However, Hydrogen produced from water splitting by photosynthesis is very clean and has zero carbon monoxide.
and Water Markets June 26th, 2015artificial Intelligence An important step in artificial intelligence: Researchers in UCSB's Department of Electrical and Computer engineering are seeking to make computer brains smarter by making them more like our own May 11th, 2015making robots more human April 29th, 2015lifeboat Foundation launches Interactive Friendly AI April 6th,
and contaminants in water to DNA and proteins. This is because graphene is an inert material for the elements to be detected and the reading mechanism uses light
The material gallium phosphide enables their solar cell to produce the clean fuel hydrogen gas from liquid water.
One of the possibilities is to split liquid water using the electricity that is generated (electrolysis.
Solar fuel cell To connect an existing silicon solar cell to a battery that splits the water may well be an efficient solution now
therefore targeting their search at a semiconductor material that is able to both convert sunlight into an electrical charge and split the water, all in one;
"In addition, Gap is also able to extract oxygen from the water -so you then actually have a fuel cell in
#Laboratorial Performance of Nanocomposite Membrane Improved in Water purification The membrane is able to separate dye components from a large amount of water.
and recycle water and industrial water is an important step towards the conservation of water reservoirs after the consumption
and water shortage crisis. Membrane purification and separation method is known as a very effective and optimum method
which has been confirmed by many researchers. The aim of this research was to produce a polymeric nanocomposite membrane
The membrane was tested to purify water and separate dye pollutants as one of the most important pollutions in many industries.
--and protein-appended molecules that form water channels that transfer water at the rate of natural membranes,
"The researchers developed a second-generation synthetic water channel that improves on earlier attempts to mimic aquaporins-natural water channel proteins--by being more stable and easier to manufacture.
"We were surprised to see transport rates approaching the'holy grail'number of a billion water molecules per channel per second,
"The researchers consider that the PAP membranes are an order of magnitude better than the first-generation artificial water channels reported to date.
and her graduate student Alexandra Rutz completed earlier in the year to develop more cell-compatible, water-based, printable gels.
and gaining a previously unattainable understanding of processes such as electron, water or ion transport or chemical reactions.
water or other spaces that are causes for health concerns. And it could aid in the detection of chemical weapons s
"The study is published in the online edition of Energy and Environmental sciences("100%clean and renewable wind, water,
water and solar are half the cost of conventional systems, "Jacobson said.""A conversion of this scale would also create jobs,
In addition, the NIST process uses water, a benign or"green"solvent. And the bunches catalyze methanol reactions consistently
We made the particles in water and tested whether you could put them in other solvents.
Water is a strongly polar molecule. The researchers expected that. What they didn't expect is that the trend doesn't scale in a predictable way.
The four solvents studied were water, methanol, ethanol and isopropanol, ordered by decreasing polarity. There wasn't much agglomeration in methanol;
bunches got about 30 percent bigger than they were in water. But in ethanol and isopropanol, the clumps got 400 percent and 600 percent bigger, respectivelyreally humongous bunches.
with water as a byproduct. hat serendipitous observation will lead to further systematic studies of nanotubes reactions in solid state,
#Hematite're-growth'smoothes rough edges for clean energy harvest (Nanowerk News) Finding an efficient solar water splitting method to mine electron-rich hydrogen for clean
according to a report published online today in the journal Nature Communications("Enabling Unassisted Solar Water Splitting by Iron Oxide and Silicon").
Water splitting combines sunlight and water in a chemical reaction in order to harvest clean hydrogen energy. By smoothing the surface of hematite,
a team of researchers led by Boston College chemist Dunwei Wang achieved'unassisted'water splitting using the abundant rust-like mineral and silicon to capture and store solar energy within hydrogen gas.
to achieve complete water splitting for solar hydrogen generation, 'said Wang, whose research focuses on discovering new methods to generate clean energy.'
'This unassisted water splitting, which is very rare, does not require expensive or scarce resources.'
because the materials can assemble in water instead of more toxic organic solutions that are used widely today.
you can dump them into water and they assemble into the appropriate structure because of the way the materials are designed,
Although the available filters made water safe to drink, they did nothing to mitigate its saltiness so the villagers drinking water tasted bad and eroded pots and pans,
Wright noticed that there were no questions about the waters salty taste. No one had asked ever them about that.
which uses a difference in electric potential to pull salt out of water. This type of desalination system has been around since the 1950s,
but Wright calculated that the amount of water used by a single farm is similar to the amount of water that a small village needs for its daily drinking water 6 to 12 cubic meters.
poor access to water pipelines often leads to a heavy reliance on well water. But some ranchers find that even their livestock wont tolerate the saltiness of this water.
Its useful to install a small-scale desalination system where people are so spread out that its more costly to pump in water from a municipal plant,
she says. Thats true in India and thats also true in the U s s
#Pimp up my nacre (Nanowerk News) Nacre, or mother of pearl, has highly attractive mechanical properties but cannot be processed into larger-scale structures.
#Single-nanocatalyst water splitter produces clean-burning hydrogen 24/7 (Nanowerk News) Stanford university scientists have invented a low-cost water splitter that uses a single catalyst to produce both hydrogen
The device, described in a study published June 23 in Nature Communications("Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting"),could provide a renewable source of clean
Stanford scientists have invented a device that produces clean-burning hydrogen from water 24 hours a day
Unlike conventional water splitters, the Stanford device uses a single low-cost catalyst to generate hydrogen bubbles on one electrode
single-catalyst water splitter that continuously generates hydrogen and oxygen for more than 200 hours, an exciting world-record performance,'said study co-author Yi Cui, an associate professor of materials science and engineering at Stanford and of photon science at the SLAC National Accelerator Laboratory.
In an engineering first, Cui and his colleagues used lithium-ion battery technology to create one low-cost catalyst that is capable of driving the entire water-splitting reaction.'
'Our hope is that this technique will lead to the discovery of new catalysts for other reactions beyond water splitting.'
As an alternative, scientists have been trying to develop a cheap and efficient way to extract pure hydrogen from water.
A conventional water-splitting device consists of two electrodes submerged in a water-based electrolyte.
But in 2014, Stanford chemist Hongjie Dai developed a water splitter made of inexpensive nickel and iron that runs on an ordinary 1. 5-volt battery.
'Our water splitter is unique, because we only use one catalyst, nickel-iron oxide, for both electrodes,'said graduate student Haotian Wang,
'This bifunctional catalyst can split water continuously for more than a week with a steady input of just 1. 5 volts of electricity.
That's an unprecedented water-splitting efficiency of 82 percent at room temperature.''In conventional water splitters, the hydrogen and oxygen catalysts often require different electrolytes with different phone acidic,
one alkaline--to remain stable and active.''For practical water splitting, an expensive barrier is needed to separate the two electrolytes,
adding to the cost of the device, 'Wang said.''But our single-catalyst water splitter operates efficiently in one electrolyte with a uniform ph.'Wang
and his colleagues discovered that nickel-iron oxide, which is cheap and easy to produce,
'We built a conventional water splitter with two benchmark catalysts, one platinum and one iridium,
'At first the device only needed 1. 56 volts of electricity to split water, but within 30 hours we had to increase the voltage nearly 40 percent.
interconnected grain boundaries that become active sites for the water-splitting catalytic reaction, 'Cui said.'
with one end that was water-loving or hydrophilic and one that was water-fearing or hydrophobic.
A mixture of these molecules self-assembled into a vesicle, much like the coalescing of oil droplets in water,
with the hydrophobic ends pointing inward and the hydrophilic ends pointing outward. The result was millions of bubble-like structures, each 100 times smaller than the width of a human hair.
water-soluble QDS in the July 1 issue of the journal Green Chemistry. This is the first example of engineers harnessing nature's unique ability to achieve cost effective and scalable manufacturing of QDS using a bacterial process.
The solution yields extracellular, water-soluble quantum dots from low-cost precursors at ambient temperatures and pressure.
helping them to use less fertilizers and water, and to control the general condition of their crops.
if a poor state of health is caused by disease or a lack of water anyway,
which involves shuttling tiny drops of water around on a series of small electrodes that looks like a miniature checkerboard.
It thus remains trapped in the core like water in a pipe and follows the glass fibre,
PCC 7002, a type of cyanobacteriaorganisms that make building blocks for new cells out of air, water, and sunlight.
an aspect of fluid dynamics that describes why a thin stream of water breaks up into smaller droplets.
The photocatalytic nanomaterial can be used to treat water using visible light. How the New Catalyst Works Their new material breaks down BPA through photocatalytic oxidation, a process in
In a new paper published this week in Nature Communications("Nanoparticles with photoinduced precipitation for the extraction of pollutants from water and soil),
and extract a variety of contaminants from soil and water. Nanoparticles that lose their stability upon irradiation with light have been designed to extract endocrine disruptors, pesticides,
and other contaminants from water and soils. The system exploits the large surface-to-volume ratio of nanoparticles,
When they learned that UV light was used to disinfect water in certain treatment plants, they began to ask a different question. e thought
or hormones from water, because we saw that the particles aggregate once you irradiate them with UV light.
and dispersed evenly in water. But when exposed to UV light, the stabilizing outer shell of the particles is shed,
much in the way a wave moves through water without actually transporting the water molecules anywhere.
#Smart hydrogel coating creates'stick-slip'control of capillary action Coating the inside of glass microtubes with a polymer hydrogel material dramatically alters the way capillary forces draw water into the tiny structures,
Capillary action draws water and other liquids into confined spaces such as tubes, straws, wicks and paper towels,
. But a chance observation by researchers at the Georgia Institute of technology will cause a recalculation of those predictions for conditions in which hydrogel films line the tubes carrying water-based liquids."
water-based liquids slip to a new location in the tube, get stuck, then slip again
the water propagates at a nearly constant speed into the hydrogel-coated capillary. This was very different from
and were reported earlier this month in the journal Soft Matter("Stick-Slip Water Penetration into Capillaries Coated with Swelling Hydrogel").
"When the opening of a thin glass tube is exposed to a droplet of water, the liquid begins to flow into the tube, pulled by a combination of surface tension in the liquid and adhesion between the liquid and the walls of the tube.
Leading the way is a meniscus, a curved surface of the water at the leading edge of the water column.
Water entering a tube coated on the inside with a dry hydrogel film must first wet the film
but with discrete steps in which the water meniscus first sticks and its motion remains arrested
This"stick-slip"process forces the water to move into the tube in a step-by-step motion.
"Though there is some swelling of the hydrogel upon contact with water, the change in the tube diameter is negligible due to the small thickness of the hydrogel layer.
Water absorption by the hydrogels occurs only when the materials remain below a specific transition temperature.
the materials no longer absorb water, eliminating the"stick-slip"phenomenon in the microtubes and allowing them to behave like ordinary tubes.
This ability to turn the stick-slip behavior on and off with temperature could provide a new way to control the flow of water-based liquid in microfluidic devices,
one-pot conversion of CO2 and epoxides to polycarbonate block copolymers that contain both water-soluble and hydrophobic regions
they polymerized first and attached the water-soluble groups afterwards. The entire process is even a one-pot reaction:
Subsequently a thiolene click reaction can be used to simply click a water-soluble group into place at the double bond.
Whats really exciting is that weve been able to connect atomic-level interactions of water and oxides on the surface to macroscopic measurements of wetting,
the W. M. Keck Professor of Energy at MIT and a senior author of a paper describing the findings in the Journal of Physical chemistry C("Reactivity of Perovskites with Water:
Materials that repel water, as shown at right, where droplets form sharp, steep boundaries, are more conducive to catalytic activity,
called ambient pressure X-ray photoelectron spectroscopy, revealed that the reactivity with water is key to the whole process,
The water molecules break apart to form hydroxyl groups an atom of oxygen bound to an atom of hydrogen bonded to the materials surface.
If a given material has a lower affinity for water, it has a higher affinity for catalytic activity.
--and protein-appended molecules that form water channels that transfer water at the rate of natural membranes,
"The researchers developed a second-generation synthetic water channel that improves on earlier attempts to mimic aquaporins-natural water channel proteins--by being more stable and easier to manufacture.
Kumar and co-authors report their development in a recent issue of the Proceedings of the National Academy of Science("Highly permeable artificial water channels that can self-assemble into two-dimensional arrays"."
""We were surprised to see transport rates approaching the'holy grail'number of a billion water molecules per channel per second,
"The researchers consider that the PAP membranes are an order of magnitude better than the first-generation artificial water channels reported to date.
or trapped in the minerals of sediments has implications for environmental management of water and soil."
and crumbled under the weight of"a relentless wall of water"as the Governor of Texas described it.
As the waters rose many people had to abandon their vehicles and escape on foot.
just as the flood waters arrived. Having an emergency bug out bag in your vehicle was a key preparedness strategy for those who had to abandon their vehicles
as many people suffered injuries from being hit by debris in flood waters. The ability to navigate on foot,
#California property values collapse as water shut offs begin...wealthy community to go dry in days...
real estate implosion now inevitable Water shut offs have begun now in California, where government-ordered restrictions are starting to leave large communities high and dry.
the Mountain House community of 15,000 residents will run out of water in just a matter of days."
"The community's sole source of water, the Byron-Bethany Irrigation District, was one of 114 senior water rights holders cut off by a curtailment notice from the state on Friday,"reports CBS. And just like that,
so the idea of carrying your own buckets of water for bathing isn't widely accepted.
I saw all this Coming in a May 7th article entitled Why the California water crisis will lead to a housing collapse, municipal bankruptcies and a mass exodus of climate refugees,
How many California homes and businesses are headed for a zero-water future? Many millions. How many Californians are aware of all this
"A number of water districts plan to sue the state on the grounds the State Water Resources Control board has no legal authority to cut off some of California oldest and most protected water rights,
"reports CBS. And so the water wars begin: there's not enough water to go around, and the courtroom serves as the new battleground over a resource that the state of California has squandered for far too long.
The Collapsifornia real estate collapse has begun already Just as I predicted in May, the collapse of real estate valuations in California is already well under way.
A multi-million-dollar estate has lost over 25%of its value virtually overnight due to the issue of water.
The more water gets cut off by the government, the more desperate people will be to sell and leave.
and water runs uphill. They've recently even decided that California should cover the health care costs of the children of illegal immigrants.
"There's no water problem in California! It has the entire Pacific ocean right next door!""you need to look into the catastrophic environmental destruction tied to ocean water desalination.
when it comes to water, 'I can tell you without hesitation that California's water woes have begun only.
If you live in California and don't have your own individual water supply--a private well that still works,
Hence the coming wave of recently-bankrupt California climate refugees who will flood into neighboring states seeking water, low-cost housing and free entitlements.
and it swells in the presence of water. Acrylate, a type of salt also known as waterlock, is the substance that gives nappies their sponginess.
Just add water Before swelling, the tissue is treated with a chemical cocktail that makes it transparent,
Just as with nappies, adding water causes the acrylate polymer to swell. After stretching the fluorescent-tagged molecules move further away from each other;
for example, want to pick up that cup of water. So in this trial, we were successfully able to decode these actual intents,
allowing them to survive in water that's warmer than their typical habitat t
#Laser'tricorder'can diagnose malaria through the skin It's a weapon that fights malaria a laser scan can give an accurate diagnosis in seconds,
#Infrared light speeds up healing by turbocharging our cells A near infrared laser beam makes it easier for a nanoscale probe to pass through water (Image:
the red light seems to alter the physical properties of water, which turbocharges the chemical reactions that provide a cell's energy.
The work from Sommer's team now points at the water within the cell. Normally the layer of water next to any solid object has high surface tension
making it viscous.""It's like molasses, "says Sommer. His team found that when surface layers of water are illuminated with the red light,
it increases the distance between each water molecule, making the liquid become"runnier"."Mitochondria are powered by an enzyme bound into their membranes.
It spins like a molecular turbine, and being surrounded by runnier water should make it turn more easily,
generating more ATP. Because it is hard to measure water inside a living cell, the team measured the effect of near-infrared light on thin layers of water by examining the friction on a diamond probe as it pushed through water
and into a metal block (see picture above). Illuminating the water cut the force needed to push in the probe by 72 per cent."
"It's highly significant, "says Horst-Dieter Försterling of the Philipp University of Marburg in Germany."
"This is the first explanation of how the light might work.""Other research groups are investigating this phenomenon as a way to speed up the healing of skin wounds
The computer working involves using droplets of water soaked with magnetic nanoparticles, the computer then uses electromagnetic field to pump the droplets around gates to perform logical operations.
which could run with water. After carrying out a lot of research, Prakash has built a rotating magnetic field to coordinate with the flow of droplets in a timely manner and acts as a clock."
When a crack forms and water seeps in, the bacteria"wake up, "and start eating the food.
and prevents the water from doing more damage (such as rusting the steel bars that are present in a lot of concrete structures).
instead, water actually increases friction instead of decreasing it
#Now You Can 3d-Print Objects Made Of Wood Fibers From prosthetic hands to an entire bridge,
To work around this, the researchers mixed tiny fibers of cellulose in a liquid gel made of water.
then slowly remove some of the water so that the final product is desired in the shape.
By testing the waters before casting a net, the startup says they can save a lot of fuel on fishing vessels
The drone can easily land in water and fly back up. For communication the Fish Scout pod creates its own Wi-fi connection with an impressive 320-foot range.
As the pod scans the water for signs of fish, it will send back images via a free Aguadrone app.
a patented technology to split oxygen and water molecules into free radicals. Those radicals easily react with viruses,
#ATM Technology Gets Applied to Kenyan Water Access It comes to no surprise that water is a scarce, precious and too-often polluted resource for people living in many developing nations,
In Kenya Mathare slum, for example, residents must purchase frequently dirty water from vendors who charge exorbitant prices for access.
and dispense the requested amount of water. Current water dispensers are charging one Kenyan shilling (about half a cent U s.)for 20 liters of fresh water,
Because of the advanced tech inherent with the water dispenser machines, the water is not only cheaper, but safer to Drink up until now,
and water when disposed of. The SALT lamp can also connect to a smartphone. The lamp will charge phones
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