Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses
Nano-sized carbon tubes coated with strands of DNA can create tiny sensors with abilities to detect odors and tastes, according to researchers at the University of Pennsylvania and Monell Chemical Sciences Center. Their findings are published in the current issue of the journal Nano Letters, a publication of the American Chemical Society. According to the researchers, arrays of these nanos...New research shows sharks use their noses and bodies to locate smells
Sharks are known to have a keen sense of smell, which in many species is critical for finding food. However, according to new research from Boston University marine biologists, sharks can not use just their noses to locate prey; they also need their skin – specifically a location called the lateral line. The lateral line is an organ used by all fish to detect, with exquisite sensitivity, movem...Why running noses are a good thing
Doctors have a new clue to help sort out whether people with aches and coughs have the ominous first signs of inhaled anthrax or ordinary colds and flu: Anthrax victims don't have runny noses. In general, the first symptoms of inhaled anthrax are the same as the flu and other wintertime viruses -- fever, ache, cough, no energy. // As a result, some worry that doctors will prescribe lo...Blood test diagnoses heart failure in short time
Generally, doctors diagnose heart disease by taking a history of symptoms, a physical exam, an electrocardiogram, an ultrasound scan and blood tests to rule out other causes, such as kidney disease.// Even with all this, they are often wrong. A 15-minute blood test allows doctors to accurately find out whether patients with severe shortness of breath are suffering from congestive heart fa...High Resolution CT Accurately Diagnoses Shin Splints
High resolution CT can accurately show medial tibial stress syndrome, better known as shin splints, in distance runners according, to a study conducted// at the University of Messina in Messina, Italy. According to the study, medial tibial stress syndrome is one of many overuse lower leg injuries that may be found in athletes and accounts for between 13.2% and 17.3% of all running inj...Late Diagnoses of HIV Infected Children is No Child’s Play, Survey Reveal
There has been a lot of talk about improving HIV detection and treatment; unfortunately most endeavors for remedy target adults. Children are at the wrong end of the stick, a news study has shown. // A study undertaken to find out the challenges to HIV care for children in India, has revealed that most children are diagnosed only when they are 30 months or more. Avina Sarna from the Po...Smart Pill for Non-invasive Diagnoses of Stomach Problems
Doctors at the University of Kansas Hospital are conducting the initial clinical trials of a new Smart Pill, about the size of a multivitamin, to diagnose their patients stomach problems without subjecting them to invasive and time-consuming procedures. Often diagnosis of chronic stomach condition, known as gastroparesis, takes months of testing, and involves invasive procedures. <...