200 years ago, a doctor from France used a stethoscope for the first time. Countless efforts to observe the human body have been made since then. Up to now, the best tool that provides anatomical, functional, and molecular ...
Optics & Photonics
Dec 16, 2019
0
23
Magnetic resonance imaging (MRI) visualizes internal body structures, often with the help of contrast agents to enhance sensitivity. A Belgian team of scientists has now developed a bimodal contrast agent suited for two imaging ...
Materials Science
Aug 6, 2019
0
9
Photoacoustic computed tomography (PACT) is a non-invasive hybrid imaging technique that excites biological tissues with light and detects the subsequently generated ultrasound to form images. PACT combines the advantages ...
Optics & Photonics
Apr 18, 2019
0
16
Measuring a fever is usually pretty simple: place a thermometer under a patient's tongue and get an accurate temperature reading within 30 seconds. But that simplicity does not translate when it comes to measuring the temperatures ...
Optics & Photonics
Feb 13, 2019
0
107
Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across ...
Optics & Photonics
Jan 23, 2019
10
1378
Purdue University researchers are developing a novel biomedical imaging system that combines optical and ultrasound technology to improve diagnosis of life-threatening diseases.
Optics & Photonics
Aug 28, 2018
0
13
Small vessel vasculitis—inflammation of the small blood vessels—appears as a stain of tiny, red dots covering the skin that, depending on the severity, can evolve into painful pustules or ulcers. In some patients, it ...
Optics & Photonics
Jul 30, 2018
0
3
Researchers have reported an approach to photoacoustic imaging that offers vastly improved resolution, setting the stage for detailed in vivo imaging of deep tissue. The technique is based on computational improvements, so ...
Optics & Photonics
Nov 9, 2017
0
28
Sangyong Jon, a professor in the Department of Biological Sciences at KAIST, and his team developed combined photoacoustic imaging and photothermal therapy for cancer by using Bilirubin (BR) nanoparticles.
Bio & Medicine
Sep 26, 2017
0
4
A team of researchers has found a way to detect trace gases down to concentrations at the parts-per-quadrillion level using a new variation on the photoacoustic effect, a technique that measures the sound generated when light ...
Analytical Chemistry
Jun 27, 2017
0
723
