Pocket-Sized Sensor for Detect 'Date Rape' Drugs, A New Line of Defense Against Sexual Assault

Date rape can be experienced by anyone, at any time. It's always better to be cautious than sorry. Not all sexual attackers are strangers who jump you in the streets. Sexual assaults can take place during social interactions such as dates while you are out with someone you know.  In most cases of 'date rape', alcohol is the substance used to...

Nanotechnology

Nanotechnology is science at the size of individual atoms and molecules: objects and devices measuring mere billionths of a meter, smaller than a red blood cell. Nanotechnology is rapidly becoming an interdisciplinary field. Biologists, chemists, physicists and engineers are all involved in the study of substances at the nanoscale. Nanoscale Experts sometimes...

Biosensors

What Is a Biosensor?A biosensor consists of two components: a bioreceptor and a transducer. The bioreceptor is a biomolecule that recognizes the target analyte, and the transducer converts the recognition event into a measurable signal. The uniqueness of a biosensor is that the two components are integrated into one single sensor (Fig1).  Fig 1. Biosensor...

Application of Ultrasound

Ultrasound has many applications in our lifes. Below are some of the applications. Medical Ultrasound has a broad range of applications in medicine, where it is referred to as medical ultrasound. It is widely used in obstetrics to follow the development of the fetus during pregnancy, in cardiology where images can display the dynamics of blood flow and the...

ULTRASONIC SENSOR

Ultrasonic sensing techniques have become mature and are widely used in the various fields of engineering and basic science. Actually, many types of conventional ultrasonic instruments, devices and sophisticated software are commercialized and used for both industrial and medical applications. One of advantages of ultrasonic sensing is its outstanding capability...

Piezoelectric Biosensor

Biosensors are chemical sensors that take advantage of the high selectivity and sensitivity of a biologically active material. It is well known that the resonant frequency of an oscillating piezoelectric crystal can be affected by a change in mass at the crystal surface. Piezoelectric immunosensors are able to measure a small change in mass. A...