News / Health

    Nanodiamonds Make Cancer Drugs Work Better

    Study shows effectiveness in treating disease in mice

    A study finds binding anti-cancer drugs to nanodiamonds makes the treatment more effective.
    A study finds binding anti-cancer drugs to nanodiamonds makes the treatment more effective.
    Art Chimes

    A new technology may make cancer drugs more effective and ease the burden of chemotherapy.

    Scientists are combining cancer medicine with tiny particles of carbon called nanodiamonds. These diamonds are nothing like the gems used in jewelry. They're just a few nanometers across. A nanometer is one billionth of a meter.  

    "Nanodiamonds are small carbon particles that kind of resemble like an angular soccer ball," says Northwestern University engineering professor Dean Ho, who led the latest study. "And what's interesting about the nanodiamond surfaces is that they like to attract water, for example, as well as other molecules, like drugs."

    Ho and his colleagues used this property to bind anti-cancer drugs to nanodiamonds. He says normally the tumor rejects the drug, but not when it’s attached to the nanoparticle.

    "We found that when we bound the drugs to the nanodiamonds, the tumors were capable of retaining the drugs for a much longer period of time," Ho says.

    In experiments using laboratory mice with liver and breast cancer, they found the drug was more effective and had fewer side effects. The researchers also found they could increase the dosage to a level that would be lethal if given without the nanodiamonds.

    "Once we modified this same elevated and toxic dose with nanodiamonds and gave them to the animals, not only did all the animals survive the study, their tumors were actually reduced to their smallest sizes," Ho says.

    The study shows the effectiveness of using nanodiamonds to treat cancer in mice, but further studies will be needed before the technology can be used in humans. In the meantime, Ho and his colleagues have been exploring other potential medical uses of nanodiamonds.

    "We've also observed in our lab the ability to bind [to the nanodiamonds] other types of drugs. These include therapeutic proteins. One example includes a study where we delivered insulin for wound-healing applications potentially."

    And in other lab experiments, they used nanodiamonds to deliver bits of DNA such as might be used in gene therapy. Ho says it was 70 times more efficient than DNA delivered through conventional methods.

    By the way, despite the high-priced name, nanodiamonds may not add much to the cost of cancer treatment. They are actually produced from the byproducts of industrial explosions, such as used in mining. "So even though they're referred to as diamonds, we believe that they can be a potentially economical product for modifying the drugs."

    You May Like

    Candidates' Comments Fly Like New Hampshire Snowflakes

    Four days ahead of the country's first-in-the-nation Republican and Democratic party primary elections, surveys show the parties' contests tightening

    South Korea Says North Korea Moving Closer to Rocket Launch

    In phone call, US President Barack Obama and Chinese President Xi Jinping agree that Pyongyang's move would be 'provocative'

    Australian Commander: IS Changing Tactics

    Head of Australian forces in Middle East talks with VOA about training Iraqi troops, countering evolving Islamic State efforts and defeating extremism

    This forum has been closed.
    Comments
         
    There are no comments in this forum. Be first and add one

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    German Artists to Memorialize Refugees With Life Jacket Exhibiti
    X
    Hamada Elsaram
    February 05, 2016 4:30 PM
    Sold in every kind of shop in some Turkish port towns, life jackets have become a symbol of the refugee crisis that brought a million people to Europe in 2015.  On the shores of Lesbos, Greece, German artists collect discarded life jackets as they prepare an art installation they plan to display in Germany.  For VOA, Hamada Elrasam has this report from Lesbos, Greece.
    Video

    Video German Artists to Memorialize Refugees With Life Jacket Exhibit

    Sold in every kind of shop in some Turkish port towns, life jackets have become a symbol of the refugee crisis that brought a million people to Europe in 2015.  On the shores of Lesbos, Greece, German artists collect discarded life jackets as they prepare an art installation they plan to display in Germany.  For VOA, Hamada Elrasam has this report from Lesbos, Greece.
    Video

    Video E-readers Help Ease Africa's Book Shortage

    Millions of people in Africa can't read, and there's a chronic shortage of books. A non-profit organization called Worldreader is trying to help change all that one e-reader at a time. VOA’s Deborah Block tells us about a girls' school in Nairobi, Kenya where Worldreader is making a difference.
    Video

    Video Genius Lets World Share Its Knowledge

    Inspired by crowdsourcing companies like Wikipedia, Genius allows anyone to edit anything on the web, using its web annotation tool
    Video

    Video Former Drug CEO Martin Shkreli Angers US Lawmakers

    A former U.S. pharmaceutical business executive has angered lawmakers by refusing to explain why he raised the price of a life-saving pill by 5,000 percent. Martin Shkreli was removed from a congressional hearing on Thursday after citing his Fifth Amendment right to stay silent. Zlatica Hoke has more.
    Video

    Video Super Bowl TV Commercials are Super Business for Advertisers

    The Super Bowl, the championship clash between the two top teams in American Football, is the most-watched sporting event of the year, and advertisers are lining up and paying big bucks to get their commercials on the air. In fact, the TV commercials during the Super Bowl have become one of the most anticipated and popular features of the event. VOA's Brian Allen has a sneak peek of what you can expect to see when the big game goes to commercial break, and the real entertainment begins.
    Video

    Video In Philippines, Mixed Feelings About Greater US Military Presence

    In the Philippines, some who will be directly affected by a recent Supreme Court decision clearing the way for more United States troop visits are having mixed reactions.  The increased rotations come at a time when the Philippines is trying to build up its military in the face of growing maritime assertiveness from China.  From Bahile, Palawan on the coast of the South China Sea, Simone Orendain has this story.
    Video

    Video Microcephaly's Connection to Zika: Guilty Until Proven Innocent

    The Zika virus rarely causes problems for the people who get it, but it seems to be having a devastating impact on babies whose mothers are infected with Zika. VOA's Carol Pearson has more.
    Video

    Video Solar Innovation Provides Cheap, Clean Energy to Kenya Residents

    In Kenya, a company called M-Kopa Solar is providing clean energy to more than 300,000 homes across East Africa by allowing customers to "pay-as-you-go" via their cell phones. As Lenny Ruvaga reports from Kangemi, customers pay a small deposit for a solar unit and then pay less than a dollar a day to get clean energy to light up their homes or businesses.
    Video

    Video Stunning Artworks Attract Record Crowds, Thanks to Social Media

    A new exhibit at the oldest art museum in America is shattering attendance records. Thousands of visitors are lining up to see nine giant works of art that have gotten a much-deserved shot of viral marketing. The 150-year-old Smithsonian American Art Museum has never had a response quite like this. VOA's Julie Taboh reports.
    Video

    Video Apprenticeships Put Americans on Path Back to Work

    Trying to get more people into the U.S. workforce, the Obama administration last year announced $175 million in grants towards apprenticeship programs. VOA White House correspondent Aru Pande went inside one training center outside of Washington that has gained national recognition for helping put people on the path to employment.
    Video

    Video New Material May Reduce Concussion Effects

    As the 2016 National Football League season reaches its summit at the Super Bowl this coming Sunday (2/7), scientists are trying to learn how to more effectively protect football players from dangerous and damaging concussions. Researchers at Cardiff and Cambridge Universities say their origami-based material may solve the problem. VOA’s George Putic reports.
    Video

    Video Saudi Arabian Women's Sports Chip Away at Stereotypes

    Saudi Arabian female athletes say that sports are on the front line of busting traditions that quash women’s voices, both locally and internationally. In their hometown of Jeddah, a group of basketball players say that by connecting sports to health issues, they are encouraging women and girls to get out of their homes and participate in public life. VOA’s Heather Murdock reports.
    Video

    Video A Year Later, Fortunes Mixed for Syrians Forging New Lives in Berlin

    In April of last year, VOA followed the progress of six young Syrian refugees -- four brothers and their two friends -- as they made their way from Libya to Italy by boat, and eventually to Germany. Reporter Henry Ridgwell caught up with the refugees again in Berlin, as they struggle to forge new lives amid the turmoil of Europe's refugee crisis.
    Video

    Video Zika Virus May be Hard to Stop

    With the Zika virus spreading rapidly, the World Health Organization Monday declared Zika a global health emergency. As Alberto Pimienta reports, for many governments and experts, the worst is yet to come.