A5046039358- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Fusion materials and technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Radioactive element chemistry and processing
- High Temperature Alloys and Creep
- Nuclear and radioactivity studies
- Chemical Synthesis and Analysis
- Nuclear Physics and Applications
- Block Copolymer Self-Assembly
- Covalent Organic Framework Applications
- Advanced Materials Characterization Techniques
- Advanced Polymer Synthesis and Characterization
- Polymer Nanocomposites and Properties
- Polymer crystallization and properties
- Chemical Safety and Risk Management
- Luminescence and Fluorescent Materials
- Machine Learning in Materials Science
- Monoclonal and Polyclonal Antibodies Research
- Nuclear materials and radiation effects
- Ion-surface interactions and analysis
- Microstructure and mechanical properties
- Topological Materials and Phenomena
Idaho National Laboratory
24-2025
The Ohio State University
2025
Lawrence Berkeley National Laboratory
2018-2020
University of Nevada, Reno
2013-2015
Dow Chemical (United States)
1993-2013
Grace (United States)
1995
Dow Chemical (India)
1995
We present the synthesis of a two-dimensional polymer at air/water interface and its nm-resolution imaging. Trigonal star, amphiphilic monomers bearing three anthraceno groups on central triptycene core are confined interface. Compression followed by photopolymerization provides polymer. Analysis scanning tunneling microscopy suggests that is periodic with ultrahigh pore density.
A two-dimensional polymer (2DP) based on the dimerization of anthraceno groups arranged in a triptycene motif is reported. photoinduced polymerization performed crystalline state and gives lamellar 2DP via crystal-to-crystal (but not single-crystal to single-crystal) transformation. Solvent-induced exfoliation provides monolayer sheets 2DP. The considered be tiling, mathematical approach that facilitates structural elucidation.
Covalent monolayer sheets in 2 hours: spreading of threefold anthracene-equipped shape-persistent and amphiphilic monomers at the air/water interface followed by a short photochemical treatment provides access to infinitely sized, strictly monolayered, covalent with in-plane elastic modulus range 19 N/m. As service our authors readers, this journal supporting information supplied authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or...
Glycoproteins adhered on the cellular membrane play a pivotal role in wide range of functions. Their importance is particularly relevant recognition process between infectious pathogens (such as viruses, bacteria, toxins) and their host cells. Multivalent interactions at pathogen-cell interfaces govern binding events can result strong specific interaction. Here we report an approach to mimic cell surface presentation carbohydrate ligands by multivalent display sugars peptoid nanosheets. The...
The ability of antibodies to bind a wide variety analytes with high specificity and affinity makes them ideal candidates for therapeutic diagnostic applications. However, the poor stability production cost have prompted exploration synthetic materials capable specific molecular recognition. Unfortunately, it remains fundamental challenge create chemically diverse population protein-like, folded nanostructures defined conformations in water. Here we report synthesis screening combinatorial...
Postsynthetic methods have been used to immobilize a carboxylate-functionalized diphosphine ligand, N,N-bis[(diphenylphosphino)methyl]glycinate (dppmg), in different metal-organic framework (MOF) supports. H(dppmg) reacts quantitatively with Zn-OH groups MFU-4l-OH (1) provide solid-state ligands (1-H-x) controllable loadings. metalation [Ir(OMe)(cod)]2 (cod = 1,5-cyclooctadiene) generates heterogeneous precatalysts (1-Ir-x) that show excellent activity toward C-H borylation of arenes. This...
Abstract On 2 May 2019, during the 137 Cs source recovery operation, a capsule in research irradiator containing approximately 77.1 TBq was breached. Based on geometric reconstruction analysis of damage to capsule, 46.3 GBq (0.04%) impacted by chop saw (grinder) inside mobile hot cell loading dock at University Washington Harborview Research and Training (HRT) Building. A very small fraction material impacted, less than 1%, released from then rest HRT The objectives this project were assess...
U-Zr metallic fuel is a promising candidate for Gen Ⅳ fast spectrum reactors. Previous experimental irradiation campaigns showed that the sodium thermal bonded U-10Zr design can achieve burnup of 10% fissions per initial heavy metal atom (FIMA). Advanced designs are pushing limit to 20% or even 30% FIMA. To higher and eliminate pyrophoric sodium, prototypical annular has been designed, fabricated, clad with HT-9 in Materials Fuels Complex, irradiated Test Reactors Idaho National Laboratory...
The production of atomically defined, uniform, large-area 2D materials remains as a challenge in chemistry. Many methods to produce nanomaterials suffer from limited lateral film dimensions, lack uniformity, or chemical diversity. These issues have hindered the application these sensing applications, which require uniform films achieve reliable and consistent signals. Furthermore, development material system that is biocompatible readily chemically tunable has been fundamental challenge....
Abstract For lithium–sulfur battery commercialization, research at a pouch cell level is essential, as some problems that can be ignored or deemed minimal smaller have greater effect on the performance of larger cell. Herein, failure mechanisms Li–S cells are deeply investigated via in operando pressure analysis. It found highly porous structures cathodes/separators and slow electrolyte diffusion through both lead to poor initial wetting. Additionally, Li‐metal anode dominates thickness...
Abstract It has been found that by the addition of low concentrations an amphiphilic block copolymer to epoxy resin, novel disordered morphologies can be formed and preserved through curing. This article will focus on characterizing influence casting solvent templated morphology achieved in thermoset sample. The ultimate goal this work is determine parameters would control microphase produced. Epoxy resins blended with a series copolymers based hydrogenated polyisoprene (polyethylene‐ alt...
The rare-earth monopnictide family is attracting an intense current interest driven by its unusual extreme magnetoresistance (XMR) property and the potential presence of topologically non-trivial surface states. experimental observation states in this materials are not ubiquitous. Here, using high-resolution angle-resolved photoemission spectroscopy, magnetotransport, parallel first-principles modeling, we examine nature electronic HoSb. Although find bulk band gaps at [Formula: see text]...
Directed self-assembly (DSA) of block copolymers (BCPs) is a promising technology for advanced patterning at future nodes, but significant hurdles remain commercial implementation. The most widely studied material DSA poly(styrene-block-methyl methacrylate) (PS-PMMA), the relatively weak segregation strength PSPMMA results in some limitations. This paper reports on these limitations PS-PMMA and highlights path to success through use more strongly segregated "high-χ" copolymers. In general,...
The production of novel composite materials, assembled using biomimetic polymers known as peptoids (N-substituted glycines) to nucleate CaCO3, can open new pathways for advanced material design. However, a better understanding the heterogeneous CaCO3 nucleation process is necessary first step. We determined thermodynamic and kinetic parameters calcite on self-assembled monolayers (SAMs) nanosheet-forming peptoid simpler, alkanethiol analogues. used rate studies determine net interfacial free...