Controlling chemistry in space and time has offered scientists and engineers powerful tools for research and technology. For example, on-demand photo-triggered activation of neurotransmitters has revolutionized neuroscience. Non-invasive control of the availability of bioactive molecules in living organisms will undoubtedly lead to major advances; however, this requires the development of photo...

With the surge of interest in miniaturized implanted medical devices (IMDs), implantable power sources with small dimensions and biocompatibility are in high demand. Implanted battery/supercapacitor devices are commonly packaged within a case that occupies a large volume, making miniaturization difficult. In this study, we demonstrate a polymer electrolyte-enabled biocompatible magnesium-air ba...

The applications of synchrotron radiation (SR) in medical imaging have become of great use, particularly in angiography, bronchography, mammography, computed tomography, and X-ray microscopy. Thanks to recently developed phase contrast imaging techniques non-destructive preclinical testing of low absorbing materials such as polymers has become possible. The focus of the present work is characte...

Functionalized carbon nanotubes and graphene nanoribbons nanostructures, serving as the basis for the creation of physical pressure and temperature nanosensors, are considered as tools for ecological monitoring and medical applications. Fragments of nanocarbon inclusions with different morphologies, presenting a disordered system, are regarded as models for nanocomposite materials based on carb...

Elizabeth A. Wilder,† Michael B. Braunfeld,§ Hiroshi Jinnai,| Carol K. Hall,† David A. Agard,§ and Richard J. Spontak*,†,‡ Departments of Chemical Engineering and Materials Science & Engineering, North Carolina State UniVersity, Raleigh, North Carolina 27695, Departments of Biochemistry & Biophysics and the Howard Hughes Medical Institute, UniVersity of California, San Francisco, California 941...

Fast Field-Cycling (FFC) is an NMR technique that involves changing the main magnetic field during the pulse sequence, which provides an extra dimension to the experimenter. It is a rich technique that is well known to characterise molecular dynamics with various applications already demonstrated in polymer matrices, porous media, liquid crystals and many other systems [1]. However, much work r...

Hybrid organic-inorganic (dendritic polymer-silica) xerogels containing silver nanoparticles (Ag Nps) were developed as antibacterial leather coatings. The preparation method is environmentally friendly and based on two biomimetic reactions. Silica gelation spontaneous Ag Nps formation both mediated by hyperbranched poly (ethylene imine) (PEI) scaffolds of variable Mw (2000–750,000). precursor ...

OBJECTIVES This study sought to evaluate the safety and efficacy of a biodegradable polymer-coated sirolimus-eluting stent (Excel, JW Medical System, Weihai, China) with 6-month dual antiplatelet therapy in daily practice. BACKGROUND It has been hypothesized that persistent presence of polymer may compromise the safety of drug-eluting stents, and that therefore biodegradable polymer coatings ...

Polymeric micro- and nanoparticles are becoming a mainstay in biomedicine, medical diagnostics, and therapeutics, where they are used in implementing sensing mechanisms, as imaging contrast agents, and in drug delivery. Current approaches to the fabrication of such particles are typically finely tuned to specific monomer or polymer species, size ranges, and structures. We present a general scal...