Nanoparticles ranging below several 10 nm such as metals, semiconductors and metal oxides are of great interest for a wide variety of applications in the field of information, energy, environmental and medical technologies due to their unique size, composition and structure. In this review article synthesis method of nanosized particles is briefly described including their application in today’...

Cationic polymers with various structures have been widely investigated in the areas of medical diagnostics and molecular biology because of their unique binding properties and capability to interact with biological molecules in complex biological environments. In this work, we report the grafting of a linear cationic polymer from an atom transfer radical polymerization (ATRP) initiator bound t...

Single conical nanopores in polymer foils are fabricated by means of the ion track etching technique. They are chemically modified so that they selectively react with certain molecules to be analyzed. This specific reaction is electrochemically monitored by measuring the electrolyte current flowing through the nanopores in an electrochemical cell. This current is dependent on the presence and c...

Thin polymer films are ubiquitous in manufacturing and medical applications, and there has been intense interest in how film thickness and substrate interactions influence film dynamics. It is appreciated that a polymer-air interfacial layer with enhanced mobility plays an important role in the observed changes and recent studies suggest that the length scale ξ of this interfacial layer is rela...

OBJECTIVE We report on 3 patients who underwent laparoscopic antireflux procedures for persistent symptoms of GERD after biopolymer injection. METHODS Experienced laparoscopic surgeons completed all 3 procedures laparoscopically. In 2 patients, there was an extramural extravasation of the polymer outside and adherent to the esophageal wall. In these patients, a partial posterior fundoplicatio...

s, and 5 issued or pending patents on the use of microand nanoscale technologies and hydrogels in biomedical applications. His current research involves the synthesis and use of novel materials and technologies for regulating cellular behavior. He has received many awards including outstanding undergraduate research mentor at MIT (2004), outstanding graduate student award by the Biomedical Engi...

*Corresponding author: Dr. Tayyeb Allahverdi Pourfallah, Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran. Fax: +98 21 88973653 E-mail: [email protected] Background: Polymer gel dosimetry is still the only dosimetry method for direct measuring of threedimensional dose distributions. MRI Polymer gel dosimeters are tissue equi...

Nanotechnology has been extensively explored in the past decade to develop a myriad of functional nanostructures to facilitate the delivery of therapeutic and imaging agents for various medical applications. Liposomes and polymeric nanoparticles represent two primary delivery vehicles that are currently under investigation. While many advantages of these two particle platforms have been disclos...

Design, Development and Characterization of Wideband Polymer Ultrasonic Probes for Medical Ultrasound Applications Vadivel Devaraju Peter A. Lewin, Ph.D. This dissertation deals with the design, development and characterization of non-resonant polymer ultrasonic probes for medical ultrasound applications. Both single element and multielement imaging transducer design having single layer and mul...