Paradigm Millenia CT

The Paradigm Millennia CT looks like a typical 2.1 speaker, but its price?a whopping $699.99 (list)?implies otherwise. While it's quite an investment, assuming the Millenia CT is overpriced would be a mistake. In fact, it might even be fairly priced, as it's a near-masterpiece. The overall output is incredibly powerful?it can get far louder than you'll likely ever need, yet even at top volumes, there is never distortion. The sub's bass level can be adjusted to tailor the frequency response to your taste and environment, and the two stereo speakers are crisp, articulate, and full of detail. If you're serious about getting accurate, exciting sound out of your home theater or computer set-up, the Millenia delivers audio that erases any unease over the price tag within the first minute of use. It easily wins PCMag's Editors' Choice award.

Design
Each 7.8 by 4.5 by 5.8-inch stereo speaker for the Millenia CT features a glossy black enclosure housing two drivers?one 1-inch high frequency driver and one 4-inch bass/mid-range driver. The enclosure is mounted to a matte metallic stand, and the angle of each speaker is adjustable, which is crucial to maintaining a "sweet spot"?depending on the height of the speakers, you'll need to change the angle to point directly at ear-level. (The "sweet spot" is the area roughly equidistant from both left and right speaker, and roughly the distance the two speakers are from each other?in other words, an equilateral triangle is formed by the two speakers and the listener's head.)

The removable grilles consist of black cloth woven into metallic mesh, and they attach to the speakers magnetically. If you prefer the grilles off?and what self-respecting audio geek doesn't??the Millenia CT's drivers are good-looking and follow the entire system's black-and-metallic color scheme.

Unlike most square-shaped box subwoofers,?the Millenia CT's sits upright, and looks more like a PC tower. It's larger than the typical sub you'll see on a PC speaker system, but this system is also intended for home theater use. Beyond that, regardless of its height and depth (it measures 15.8 by 5 by 14 inches), its shape makes it far easier to fit into challenging spots. A rubberized stand is included for the sub, but it can also be set down in a horizontal position?in this case, you'd attach the four included bumper pads to cut down on vibrations and keep the sub in place.

The most disappointing facet of the system is the tiny, cheap-looking and -feeling remote. Membrane buttons control Volume, Mute, Power, and switch between the audio and digital inputs. This is the kind of remote you expect to see with a $200-or-below PC speaker system and seems destined to spend much of its life hidden in your sofa cushions. Simply put, $700 should buy you a much nicer remote. But hey, it works. The remote sensor is located on the front panel of the black Control Box, which also houses the audio inputs.

This leads us to our second disappointment: The limited number of audio inputs. The small connection box feeds audio to the connected subwoofer, which in turn distributes left and right audio to the two speakers connected to its back panel. (The sub's rear panel also houses a subwoofer volume knob with a midpoint indicator and the power connection for the system.) There is a digital optical connection to the input box, as well as a 3.5mm analog input for computers and most mobile audio devices, like a phone or tablet.

Having these two options is fantastic, but many modern systems include an extra Aux input on one of the satellite speakers, making it easier to connect a phone or tablet, while keeping the other inputs hardwired to, say, a digital television and a Blu-ray or PC audio output. If there were just one more option, the likelihood of needing to swap out connections on a regular basis would be drastically lowered. As it is, you'll probably find yourself switching the analog input between PC and phone or tablet fairly often.

However, the system's overall design is stellar. For instance, one peeve of mine is when included speaker cables are too short, but the two included for the satellite speakers here are very long, so you can get as much stereo separation as you desire. For larger rooms where you might sit farther away from the speakers, this is more important.

All necessary cables are included with the Millenia CT?power cable, 3.5mm stereo audio cable, the digital optical cable, a connection cable for the audio source box and the sub, and the aforementioned (lengthy) speaker wires.

Performance
Even if the Millenia CT were ugly and poorly designed, it would be still be a winner thanks to its excellent audio performance. This is what $700 should sound like. The lows, mids, and highs are all beautifully represented in crisp, clear detail. The sub-bass frequencies can be adjusted, but even at maximum volume on the sub, which is obviously not the recommended position, we never hear anything horrifyingly-muddy or distorted.

On deep bass tracks, like the Knife's "Silent Shout," playing from a connected iPhone, with both the system volume at maximum and the iPhone volume at max, there is zero distortion, regardless of whether the subwoofer volume level is cut out completely or set to maximum. At mid-way on the sub volume, the result is extremely loud, powerful, clean audio. It's highly doubtful that that you'll be listening at this level on a regular basis. At far more reasonable levels, the Millenia CT loses none of its perceived power?the bass is rich and resonant without ever getting muddled or compromising the overall balance of the system.

On instrumental and classical tracks, like John Adams' "The Chairman Dances," the Millenia CT sounds stunning. If you pump up the volume, you might as well be in the concert hall with the orchestra. The higher register wooden percussion and strings stand out beautifully, with every instrument occupying its own space. Adjusting the bass level if you want a bit more low-end presence is a possibility. But the midpoint, in a typical room, should be sufficient?the lower register brass, strings, and percussion have a depth that is simultaneously arresting and exciting, yet natural-sounding. Audiophiles and bass fiends alike can enjoy this system?they'll probably just keep the sub volume knob at different positions.

On modern mixes, from hip hop to rock to singer-songwriter tracks, the Millenia CT again proves a friend to just about any genre you can throw at it. Jay-Z and Kanye West's "No Church in the Wild" benefits from the highly capable subwoofer, which provides a strong resonance for the sub-bass synth sounds, while the mid-range and high-frequency drivers allow vocals and the attack of the drum loop to take center stage.

Bill Callahan's unique baritone vocals on his latest record, Apocalypse, are lent a pleasant depth by the system, but the real magic comes from the edge that the high-frequency drivers provide it. Grizzly Bear's latest record, Shields, has a plethora of exciting sounds, from massive kick drum hits to haunting synth tones and stunning vocal harmonies?the Millenia CT conveys it all, from the growl of an electric bass to the subtle picking of a guitar, with precision.

Beyond $700, we enter a realm of hi-fi speakers and audio components that you could consider semi-pro. At this $700 level, there are few consumer-level competitors?most 2.1 systems are far less. The Bowers & Wilkins Zeppelin and Zeppelin Air ?are both priced in roughly the same territory, but their audio performance is not quite on par with the 2.1 Millenia CT, which is more powerful and can achieve stereo separation. The Zeppelins are both excellent in their own right, but they are also, to a certain extent, design pieces, and a good chunk of the Zeppelin Air's cost can be attributed to its Apple AirPlay wireless audio compatibility. Another good-looking, glossy black system, the Klipsch Gallery G-17 Air , offers a slightly more reserved approach than the Millenia CT does to bass response, but it, too, lacks much stereo separation and its price is also boosted by its AirPlay functionality.

Basically, it's hard for speaker docks and all-in-one systems to compete with 2.1 set-ups when it comes to sheer audio performance?they sound larger because they can occupy more space. The Focal XS ?is another PCMag favorite in the hi-fi 2.1 PC speaker category?its visual design is a bit less alluring, but it's also a quite powerful, exciting system, and though it's not cheap, it is a bit less than the Millenia CT. If all of these are far out of your budget, but you really want a 2.1 system for your PC, phone, or home theater, the Harman Kardon SoundSticks III are a classic design, with both visual allure and strong audio performance. If you can afford it, however, the Paradigm Milennia CT will not disappoint. It's an easy choice for Editors' Choice, and I wish I had one in my house.

More Speaker reviews:
??? Paradigm Millenia CT
??? iLuv iSP245 Mo'Beats Speaker Stand
??? iLuv MobiAir iMM377
??? Bose SoundLink Air
??? Logitech UE Boombox
?? more

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/CzQu0VSX_i8/0,2817,2410597,00.asp

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31 Days {10} :: Wellness {this i know} ? Finding Serendipity

I needed to pause today, so the following is a repost from my Restoring Jane series {see the tab to the upper left, or search ?Restoring Jane? to find other wellness related articles on my blog}. It was originally published February 7th, 2011.?

Can I be a little bossy?
Opinionated, too?
?Cause 30 years of doing any one thing can make you that way.

We?re about six weeks into this new year, and many of you have expressed resolutions and re-commitments to exercise. Exercise science, like other sciences, is always yielding new information. What we know as an accepted fact today, could become a crazy exercise fad tomorrow. {So be careful out there!} Learn to weigh what you are told or what you read against your common sense. Here?s a few things that I know:

1. Wellness is more than fitness. Wellness includes a healthy attitude towards exercise. It includes a healthy self-esteem, a calm spirit, a nutritious diet, a safe circle of friends, time invested in spirituality, balance.

2. In any exercise class, there will be people of varying levels of fitness.?Know where you are and be fabulous there!?Push yourself to reach the next level, but not at the cost of an injury.

3. When you feel like stopping short of your goal? that moment??That?s you getting stronger!?Push through. If it?s that you are bored or just don?t want to keep going, you?ll increase your mental stamina, endurance. If it?s muscle fatigue, you?ll develop muscular strength. If it?s that you feel you can?t expand your lungs enough to breathe, you?ll develop heart and lung health.

4. Movement is necessary for wellness. For all kinds of wellness.?Be grateful for the ability to move!?Go for a walk and breathe in fresh air. Take a ride on a bike. Play tennis. Swim. Jump on a trampoline. Move every day. Be grateful. For my friends with long term disabilities or chronic illness, those who might have to have movement imposed on them, allow that. Use your breath to work through pain or discomfort. Try to enjoy movement and the freedom it offers. In water. In therapy. In meditation.

DOUBLE-DOG DARE: Reassess your fitness and wellness goals. Recommit?{again and again, as needed}. Commit to move every day.

*****

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{part 2}

<a href=?http://www.findingserendipity.com/? mce_href=?http://www.findingserendipity.com/?><img src=?http://www.findingserendipity.com/wp-content/uploads/2011/09/31-Days-02b-e1317418331576.png? mce_src=?http://www.findingserendipity.com/wp-content/uploads/2011/09/31-Days-02b-e1317418331576.png?/></a>

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There are 1440 minutes in every day? 1440 opportunities to capture a moment of beauty. What moment of beauty did you capture this week?

Share it with us here on Fridays!

*

Heidi, of Slightly Cosmopolitan, is doing a 31 Days series on Daring Greatly, based on the book by Brene Brown. You HAVE to read her posts from days 4 and 5, The Shameful Car and My Shameful House. I caught up on her whole series last night! ?:)

Source: http://www.findingserendipity.com/31-days-10-wellness-this-i-know/

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UN strongly condemns Syrian shelling of Turkey

UNITED NATIONS (AP) ? The U.N. Security Council overcame deep divisions to unanimously approve a statement Thursday condemning Syria's shelling of a Turkish town that killed five women and children "in the strongest terms."

Council members managed to bridge differences between the strong statement demanded by the United States and its Western supporters and backed by their NATO ally Turkey, and a weaker text pushed by Russia, Syria's most important ally, after negotiations that began late Wednesday and continued through Thursday.

In the press statement, which needed approval from all 15 council members, the U.N.'s most powerful body said the incident "highlighted the grave impact the crisis in Syria has on the security of its neighbors and on regional peace and stability."

It also extended condolences to the families of the victims and to the government and people of Turkey.

The council demanded an immediate end to such violations of international law and called on the Syrian government "to fully respect the sovereignty and territorial integrity of its neighbors." Russia's agreement that the Syrian shelling violated international law was a key concession by Moscow.

The original Western-backed draft, proposed by Azerbaijan, condemned the shelling "in the strongest terms" and called it a violation of international law. Proposed Russian amendments never mentioned any breaches of international law, so the inclusion in the final text was a concession by Moscow.

Earlier Thursday, Syria's U.N. envoy said his government is not seeking any escalation of violence with Turkey and wants to maintain good neighborly relations.

Ambassador Bashar Ja'afari said the government hasn't apologized for the shelling from Syria because it is waiting for the outcome of an investigation on the source of the firing.

He read reporters a letter he delivered to the Security Council that sent Syria's "deepest condolences" to the families of the victims "and to the friendly and brotherly people of Turkey."

It urged Turkey and its other neighbors to "act wisely, rationally and responsibly" and to prevent cross-border infiltration of "terrorists and insurgents" and the smuggling of arms.

During Thursday's negotiations on the text when the outcome was still in doubt, U.S. Ambassador Susan Rice told reporters "we think it's very important that the council speak clearly and swiftly to condemn this shelling."

"This sort of cross-border military activity is very destabilizing and must be stopped," she said.

The border violence has added a dangerous new dimension to Syria's civil war, dragging Syria's neighbors deeper into a conflict that activists say has already killed 30,000 people since an uprising against President Bashar Assad's regime began in March 2011.

U.N. Secretary-General Ban Ki-moon expressed alarm Thursday at the escalating border tensions and warned that the risks of regional conflict and the threat to international peace is increasing, U.N. spokesman Martin Nesirky said.

The U.N. chief called on all parties "to abandon the use of violence, exercise maximum restraint and exert all efforts to move toward a political solution," he said.

Nesirky said Lakhdar Brahimi, the U.N.-Arab League envoy, has been in contact with Turkish and Syrian officials "in order to encourage an easing of tensions."

Syria's Ja'afari said the "Syrian government is keenly interested in maintaining good neighborly relations with Turkey."

"The Syrian government is not seeking any escalation with any of its neighbors, including Turkey," he stressed.

But he said Syria wants to explain to the Turkish people that their government's policies supporting the opposition "are wrong and have been wrong since the beginning of the crisis."

Ja'afari said Turkey responded to the incident by launching artillery shells into Syria starting at 7 p.m. local time Wednesday and stopping at midnight. Turkish troops then resumed artillery shelling Thursday morning until 7 a.m., injuring two Syrian army officers, he said.

"Our forces practiced self-restraint and did not respond to this Turkish artillery shelling," Ja'afari said.

The Syrian ambassador said he delivered another letter to the Security Council seeking its condemnation of four suicide bombings in the country's largest city and commercial capital, Aleppo, which killed scores of innocent civilians and took place about the same time Wednesday as the cross-border shelling. He called them "suicide terrorist attacks."

Guatemala's U.N. Ambassador Gert Rosenthal, the current Security Council president who read the statement on Syria, said he is awaiting final approval from all council members on another press statement on the Aleppo attacks. The deadline for objections is 10:00 a.m. EDT Friday, he said.

Ja'afari urged the Turkish government to show "the same kind of sympathy" to the hundreds of innocent Syrian civilians killed in the suicide bombings as the Syrian government showed to the Turkish victims.

Some of the suicide bombers "came through the Turkish-Syrian border, so things should be balanced," he said.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2012-10-04-UN-UN-Syria-Turkey/id-b2cfaf807557432e82eba86513704d73

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EPA: More cleanup needed in 2010 Enbridge spill

MARSHALL, Mich. (AP) ? The U.S. Environmental Protection Agency on Wednesday told Enbridge Inc. that the pipeline company's massive 2010 oil spill in the Kalamazoo River system requires more cleanup work.

The Calgary, Alberta-based company owns a 30-inch pipeline from Griffith, Ind., to Sarnia, Ontario. It burst near Marshall, Mich., in July 2010, spewing oil into a Kalamazoo River tributary.

EPA says crews removed 1.1 million gallons of oil and 200,000 cubic yards of oil-contaminated sediment and debris.

The agency says it informed Enbridge more work is need upstream from the Ceresco and Battle Creek dams and Morrow Lake. It says Enbridge has 10 days to request a conference about the proposed order.

Company spokesman Jason Manshum says the EPA's notice isn't a formal directive and says Enbridge is reviewing it.

Source: http://news.yahoo.com/epa-more-cleanup-needed-2010-enbridge-spill-182104294--finance.html

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Aggressive Romney spars with Obama in first debate

Republican presidential nominee Mitt Romney and President Barack Obama shake hands before the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

Republican presidential nominee Mitt Romney and President Barack Obama shake hands before the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

Republican presidential nominee Mitt Romney and President Barack Obama talks after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, and President Barack Obama, left, walk on stage at the end of their first debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pablo Martinez Monsivais)

John Rossitto watches the first presidential debate between President Barack Obama and Republican presidential nominee Mitt Romney from a restaurant in San Diego, Wednesday, Oct. 3, 2012. (AP Photo/Gregory Bull)

President Barack Obama shakes hands with Republican presidential nominee Mitt Romney during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

DENVER (AP) ? In a showdown at close quarters, an aggressive Mitt Romney sparred with President Barack Obama in their first campaign debate Wednesday night over taxes, deficits and strong steps needed to create jobs in a sputtering national economy. "The status quo is not going to cut it," declared the Republican challenger.

Democrat Obama in turn accused his rival of seeking to "double down" on economic policies that actually led to the devastating national downturn four years ago ? and of evasiveness when it came to prescriptions for tax changes, health care, Wall Street regulation and more.

With early voting already under way in dozens of states, Romney was particularly assertive in the 90-minute event that drew a television audience likely to be counted in the tens of millions ? like a man intent on shaking up the campaign with a little less than five weeks to run.

He seemed at ease in debate with the man who has been in the White House for four years. "It's fun, isn't it?" Romney said. In a rare post-debate concession, some Democratic strategists not involved in the campaign conceded the president was not at his best and missed opportunities to challenge his rival.

The former Massachusetts governor virtually lectured Obama at one point after the president accused him of seeking to cut education funds. "Mr. President, you're entitled to your own airplane and your own house, but not your own facts," he said.

The economy dominated the evening, as it has the race for the White House all year. Pre-debate opinion polls showed Obama with a slight advantage in key battleground states and nationally.

Romney said he had plans to fix the economy, overhaul the tax code, repeal Obama's health care plan and replace with a better alternative, remake Medicare, pass a substitute for the legislation designed to prevent another financial crash and reduce deficits ? but he provided no new specifics despite Obama's prodding.

Said Obama: "At some point the American people have to ask themselves: Is the reason Governor Romney is keeping all these plans secret, is it because they're going to be too good? Because middle class families benefit too much? No."

The two men debate twice more this month, but they were first going their separate ways on Thursday. Obama had campaign stops in Colorado and then Madison, Wis., while Romney was booked into Virginia. All three states are among the nine battlegrounds likely to settle the race.

At times the debate turned into rapid-fire charges and retorts that drew on dense facts and figures that were difficult to follow. The men argued over oil industry subsidies, federal spending as a percentage of the GDP, Medicare cuts, taxes and small businesses and the size of the federal deficit and how it grew.

Obama sometimes seemed somewhat professorial. Romney was more assertive and didn't hesitate to interrupt the president or moderator Jim Lehrer, who seemed to struggle to maintain control.

The wonky tone of the debate was a stark contrast to the harsh, broad-brush and sometimes personal attacks the two men make in person and in multimillion-dollar television advertising. Obama made no mention of Romney's videotaped remark that 47 percent of the country doesn't pay income taxes and believe themselves to be victims, entitled to government benefits. And Romney did not repeat a key theme from his national convention, that Obama's "you didn't build that" statement was a putdown of American initiative.

At the same time, Romney managed to make some points by personalizing his comments with recollections of people he said he had met on the campaign trail. In another folksy reference, Romney told Lehrer, a veteran of the Public Broadcasting Service, that he would stop the federal subsidy to PBS even though "I love Big Bird."

Generally polite but pointed, the two men agreed about little if anything.

Obama said his opponent's plan to reduce all tax rates by 20 percent would cost $5 trillion and benefit the wealthy at the expense of middle income taxpayers.

Shot back Romney: "Virtually everything he just said about my tax plan is inaccurate."

The former Massachusetts governor and businessman added that Obama's proposal to allow the expiration of tax cuts on upper-level income would mean tax increases on small businesses that create jobs by the hundreds of thousands.

The two campaign rivals clasped hands and smiled as they strode onto the debate stage at the University of Denver, then waved to the audience before taking their places behind identical lecterns.

There was a quick moment of laughter, when Obama referred to first lady Michelle Obama as "sweetie" and noted it was their 20th anniversary.

Romney added best wishes, and said to the first couple, "I'm sure this is the most romantic place you could imagine, here with me."

Both candidates' wives were in the audience.

Without saying so, the two rivals quickly got to the crux of their race ? Romney's eagerness to turn the contest into a referendum on the past four years while the incumbent desires for voters to choose between his plan for the next four years and the one his rival backs.

Romney ticked off the dreary economic facts of life ? a sharp spike in food stamps, economic growth "lower this year than last" and "23 million people out of work or stropped looking for work."

But Obama criticized Romney's prescriptions and his refusal to raise taxes and said, "if you take such an unbalanced approach then that means you are going to be gutting our investment in schools and education ... health care for seniors in nursing homes (and) for kids with disabilities."

Not surprisingly, the two men disagreed over Medicare, a flash point since Romney placed Wisconsin Rep. Paul Ryan on his ticket.

The president repeatedly described Romney's plan as a "voucher program" that would raise out-of-pocket costs on seniors.

He continued, directly addressing the voters at home: "If you're 54 or 55 you might want to listen because this will affect you."

Romney said he doesn't support any changes for current retirees or those close to retirement.

"If you're 60 or 60 and older you don't need to listen further," he said, but he contended that fundamental changes are needed to prevent the system from becoming insolvent as millions of baby boom generation Americans become eligible.

Romney also made a detailed case for repealing Obamacare, the name attached to the health care plan that Obama pushed through Congress in 2010. "It has killed jobs," he said, and argued that the best approach is to "do what we did in my state."

Though he didn't say so, when he was governor Massachusetts passed legislation that required residents to purchase coverage ? the so-called individual mandate that conservatives and he oppose on a national level.

Romney also said that Obamacare would cut $716 billion from Medicare over the next decade.

The president said the changes were part of a plan to lengthen the program's life, and he added that AARP, the seniors lobby, supports it.

With a two-minute closing statement, Obama said he had spent his first four years in office fighting for those in the middle class and those seeking to make it there. "If you'll vote for me, I'll fight just as hard in my second term," he said.

Romney was as critical of Obama's tenure as he was the moment the two men walked onto the stage.

If the president is re-elected, he predicted continued economic trouble for the middle class, chronic unemployment, higher costs for health insurance and "dramatic cuts to the military."

Obama took office in the shadow of an economic crisis but promised a turnaround that hasn't materialized. Economic growth has been sluggish throughout his term, with unemployment above 8 percent since before he took office.

The two presidential rivals also are scheduled to debate on Oct. 16 in Hempstead, N.Y., and Oct. 22 in Boca Raton, Fla.

Vice President Joe Biden and Republican Rep. Paul Ryan of Wisconsin have one debate, Oct. 11 in Danville, Ky. Both men have already begun holding practice sessions.

___

Associated Press writer Kristen Wyatt contributed to this report. David Espo reported from Washington.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2012-10-04-Presidential%20Campaign/id-9dfa447c8a1d45bca636c3889c2595ed

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Graphene nanopores can be controlled: Less costly ways of sequencing DNA

ScienceDaily (Oct. 3, 2012) ? Engineers at The University of Texas at Dallas have used advanced techniques to make the material graphene small enough to read DNA.

Shrinking the size of a graphene pore to less than one nanometer -- small enough to thread a DNA strand -- opens the possibility of using graphene as a low-cost tool to sequence DNA.

"Sequencing DNA at a very cheap cost would enable scientists and doctors to better predict and diagnose disease, and also tailor a drug to an individual's genetic code," said Dr. Moon Kim, professor of materials science and engineering. He was senior author of an article depicted on the cover of the September print edition of Carbon.

The first reading, or sequencing, of human DNA by the international scientific research group known as the Human Genome Project cost about $2.7 billion. Engineers have been researching alternative nanomaterials materials that can thread DNA strands to reduce the cost to less than $1,000 per person.

Dr. Moon Kim, professor of materials science and engineering, was the senior author of the article.

It was demonstrated in 2004 that graphite could be changed into a sheet of bonded carbon atoms called graphene, which is believed to be the strongest material ever measured. Because graphene is thin and strong, researchers have searched for ways to control its pore size. They have not had much success. A nanoscale sensor made of graphene could be integrated with existing silicon-based electronics that are very advanced and yet cheap, to reduce costs.

In this study, Kim and his team manipulated the size of the nanopore by using an electron beam from an advanced electron microscope and in-situ heating up to 1200 degree Celsius temperature.

"This is the first time that the size of the graphene nanopore has been controlled, especially shrinking it," said Kim. "We used high temperature heating and electron beam simultaneously, one technique without the other doesn't work."

Now that researchers know the pore size can be controlled, the next step in their research will be to build a prototype device.

"If we could sequence DNA cheaply, the possibilities for disease prevention, diagnosis and treatment would be limitless," Kim said. "Controlling graphene puts us one step closer to making this happen."

Other UT Dallas researchers from the Erik Jonsson School of Engineering and Computer Science involved in this project are Dr. Ning Lu, research scientist in materials science and engineering; Dr. Jinguo Wang, associate EM Facility Director; and Dr. Herman Carlo Floresca, postdoctoral research fellow in materials science and engineering.

The study was funded by the Southwest Academy of Nanoelectronics, Air Force Office of Scientific Research and the World Class University Program.

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Story Source:

The above story is reprinted from materials provided by University of Texas at Dallas.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

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Journal Reference:

1. Ning Lu, Jinguo Wang, Herman C. Floresca, Moon J. Kim. In situ studies on the shrinkage and expansion of graphene nanopores under electron beam irradiation at temperatures in the range of 400?1200?C. Carbon, 2012; 50 (8): 2961 DOI: 10.1016/j.carbon.2012.02.078

Note: If no author is given, the source is cited instead.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/technology/~3/Zy-Ggh8iKLA/121003141406.htm

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Media groups, Filipinos protest tough cyber law

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