Archive » 2009 » September » 14

Most happening tech news around the world

Written in 14-9-2009 by | No Comments

Nanotube sensor to detect nitric oxide gas
Nitric oxide is difficult to detect because it is very unstable. Monitoring nitric oxide levels in living cells will help researchers figure out its role in the cancer and other diseases. It would also allow closer study of nitric oxide releasing cancer drugs. Biologists could use these sensors to study the effects of nitric oxide on the brain, where it acts as a neurotransmitter.

The researchers coated carbon nanotubes with a polymer designed to specifically attract nitric oxide. The polymer is wrapped tightly enough so that only small molecules can get through to bind the nanotube by an extra pair of electrons passed from the polymer to the nanotube. The sensor is activated by near infrared light , which easily penetrates the human body. The team plans to start testing the sensors in living animals and is working on similar sensors that can detect molecules other than nitric oxide.

Microchip based on DNA structure
International Business machines and California Institute of Technology is developing microchips based on DNA structure. As designers struggle to cut costs, chipmakers attempt to develop smaller chips to address this challenge. Artificial DNA nano structures provide a cheaper framework to build microchips, which are used in many electronics devices like mobile phones.

Robots – useful information

Written in 14-9-2009 by | No Comments

ROBOTS could be dangerous

Sometimes ROBOTS could be dangerous to human beings. A situation which is now limited to only sci-fi films, such as the terminator & the matrix, could become true.  Leading scientists warn thet mankind might lose control over computer based systems that carry out a growing share of society’s workload, from waging war to chatting on the phone, and have already reached a level of indescructibility comparable with a cockroach. Too much time has been spent on developing artificial intelligence and too little on robot safety.

Robots assist doctors in life saving operations

Robots are helping doctors to treat soldiers in combat zones from faraway locations. In these operations the robot is mounted with a high tech camera and controlled from another region via a laptop and remote joystick. The robot can move easily because of the sensors located on its torso, which help it to identify obstacles.  The camera on the robot capture images of the patient from every angle and a zoom option allows doctors a close up view of their distant patients.