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Scientists at Rice University, Biola University, and the Texas A&M Health Science Center have demonstrated that molecular nanomachines that spin up to 3 million times per second can target diseased cells and kill them in minutes. The nanomachines could be used to control parasites and treat skin cancer.
An international team of scientists and engineers has discovered one-dimensional defects in a two-dimensional structure of porous material – a zeolite called MFI. By imaging the atomic structure of the MFI nanosheets at unprecedented detail, the researchers found that these one-dimensional defects resulted in a unique reinforced nanosheet structure that changed the filtration properties of the nanosheet. The discovery could improve efficiency in the production of gasoline, plastics, and biofuels.
An international team of scientists and engineers has discovered one-dimensional defects in a two-dimensional structure of porous material – a zeolite called MFI. By imaging the atomic structure of the MFI nanosheets at unprecedented detail, the researchers found that these one-dimensional defects resulted in a unique reinforced nanosheet structure that changed the filtration properties of the nanosheet. The discovery could improve efficiency in the production of gasoline, plastics, and biofuels.
Scientists at the U.S. Department of Energy’s Argonne National Laboratory have made and tested a superconducting nanowire device applicable to high-speed photon counting for nuclear physics experiments that were previously thought impossible. The device operates at temperatures near absolute zero in magnetic fields 40 times stronger than previous such devices and can detect low-energy photons and other fundamental particles.
Scientists at the U.S. Department of Energy’s Argonne National Laboratory have made and tested a superconducting nanowire device applicable to high-speed photon counting for nuclear physics experiments that were previously thought impossible. The device operates at temperatures near absolute zero in magnetic fields 40 times stronger than previous such devices and can detect low-energy photons and other fundamental particles.
Through a technique known as DNA origami, scientists at Emory University have created the fastest, most persistent DNA nano motor yet. The new DNA motor is rod-shaped and uses RNA fuel to roll persistently in a straight line, without human intervention, at speeds up to 100 nanometers per minute. That's up to 10 times faster than previous DNA motors.
Through a technique known as DNA origami, scientists at Emory University have created the fastest, most persistent DNA nano motor yet. The new DNA motor is rod-shaped and uses RNA fuel to roll persistently in a straight line, without human intervention, at speeds up to 100 nanometers per minute. That's up to 10 times faster than previous DNA motors.
Blood tests can measure levels of cortisol, often called the “stress hormone,” in the body. But a blood test can raise a person’s stress level itself, and it can’t be done frequently, nor without a medical professional. Now researchers at Caltech are reporting on the first noninvasive, wearable sensor that can detect changes in cortisol levels directly from sweat in the skin. It’s made of graphene, a layer of carbon only one layer thick that has tiny holes throughout. These holes contain cortisol antibodies that bind to the cortisol in sweat, and this can be detected electronically by the sensor.
Blood tests can measure levels of cortisol, often called the “stress hormone,” in the body. But a blood test can raise a person’s stress level itself, and it can’t be done frequently, nor without a medical professional. Now researchers at Caltech are reporting on the first noninvasive, wearable sensor that can detect changes in cortisol levels directly from sweat in the skin. It’s made of graphene, a layer of carbon only one layer thick that has tiny holes throughout. These holes contain cortisol antibodies that bind to the cortisol in sweat, and this can be detected electronically by the sensor.
Engineers at the University of California San Diego and the University of California Berkeley have created light-based technology that can detect biological substances with a molecular mass more than 100 times smaller than previously possible. The researchers used plasmons, which are small fluids of electronic waves that can move back and forth in metallic nanostructures. The research could lead to the development of ultra-sensitive devices that can quickly detect pathogens in human blood and considerably reduce the time needed for patients to get results from blood tests.
