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Publications
Rapid, mass diagnosis of the coronavirus disease 2019 (COVID-19) is critical to stop the ongoing infection spread. The two standard screening methods to confirm the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are polymerase chain reaction (PCR), through the RNA of the virus, and serology...
2019 MRS Fall Meeting featured a variety of outreach, career, and professional development offerings
The MRS AWARDS AND RECOGNITION PROGRAM strives to acknowledge outstanding contributors to the progress of materials research and to recognize their accomplishments. At the Fall Meeting, MRS recognized JERRY D. TERSOFF, IBM T.J. Watson Research Center, with the Von Hippel Award for advancing the understanding...
When light illuminates the junction formed between a sharp metal tip and a sample, different mechanisms can contribute to the measured photoinduced force simultaneously. Of particular interest are the instantaneous force between the induced dipoles in the tip and in the sample, and the force...
Photoinduced force microscopy (PiFM) measures changes in the force between an atomically sharp tip and the sample under the influence of applied radiation. Several mechanisms contribute to the overall force, including forces introduced due to thermal heating of the sample and the tip. In this...
The surface chemical composition of water-based coatings prepared from urethane–acrylic hybrids or blends is investigated using infrared photo-induced force microscopy. By monitoring the interaction between the optically driven molecular dipole and its mirror image in a metal-coated tip, detailed information of the chemical composition at...
Attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) is a powerful technique that provides structural and functional information during dynamic reactions in aqueous solutions. One existing limitation is the sensitivity to extract the signals of trace-level analytes from the background water in situ and in...
There is an increasing urge to investigate facile solutions for monitoring biotoxins, which are a major concern in both the food safety and the anti-terrorism fields. Current techniques, such as immunochromatographic tests (ICT), enzyme-linked immunosorbent assay (ELISA) and mass spectrometry, are still insufficient to satisfy...
Understanding of how the chemistry of asphalt binders (i.e., bitumens) affects their bulk properties is critical for development of structure-related mechanical models and performance-based specifications for asphalt binders and asphalt-related applications. However, establishing the chemical-mechanical relationships that govern asphalt binders’ properties remains a challenge due...
How the dynamic changes of the surface properties of nanoparticles affect the nano-cell interaction was revealed for the first time, by in situ real-time label-free SEIRA spectroscopy at the nanoscale.
El presente trabajo se refiere a los 1,2,5- tiadiazoles, principalmente los 1,1- dióxidos derivados. Se estudian las propiedades estructurales, electroquímicas, espectroscópicas, comportamiento químico en solución, etc. Por lo tanto, el campo de estudio es la fisicoquímica orgánica de los tiadiazoles. Contrariamente al interés existente en...
The organization of protein molecules into higher-order nanoscale architectures is ubiquitous in Nature and represents an important goal in synthetic biology. Furthermore, the stabilization of enzyme activity has many practical applications in biotechnology and medicine. Here we describe the symmetry-directed design of an extremely stable,...
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Hyperbolic media have attracted much attention in the photonics community due to their ability to confine light to arbitrarily small volumes and their potential applications to super-resolution technologies. The two-dimensional counterparts of these media can be achieved with hyperbolic metasurfaces that support in-plane hyperbolic guided...
Resumo em português O presente trabalho visa apresentar uma proposta e uma breve análise do potencial pedagógico do tema da Astrofísica Estelar, uma vez que a teoria da formação e da evolução das estrelas é uma fusão da Astronomia com a chamada Física Moderna. O...
Although it has been half a century since polyacrylonitrile (PAN)-based carbon fibers were first developed, the exact formation mechanism of skin-core structure of PAN-based carbon fibers, especially the stabilized PAN fibers, was still not well clarified from the viewpoint of the chemical structure. In order...
Multi-stacked graphene oxide (GO) sheets containing intricate networks of microcapillary water channels are attractive as filtration membranes displaying both ultrahigh water permeation and ion exclusion properties. However, their practical utilization as desalination membranes is hampered by multiple issues, which include scalability, swelling of interlayer space,...
The charge separation yield at a bulk heterojunction sets the upper efficiency limit of an organic solar cell. Ultrafast charge transfer processes in polymer/fullerene blends have been intensively studied but much less is known about these processes in all-polymer systems. Here, we show that interfacial...
Abstract Unavailable