A5011200325- Advanced Materials and Mechanics
- Cellular and Composite Structures
- Additive Manufacturing and 3D Printing Technologies
- Inorganic Chemistry and Materials
- Polydiacetylene-based materials and applications
- Electrophoretic Deposition in Materials Science
- Nanoporous metals and alloys
- Magnetism in coordination complexes
- Statistics Education and Methodologies
- Quantum Dots Synthesis And Properties
- Organometallic Complex Synthesis and Catalysis
- Innovations in Concrete and Construction Materials
- Innovations in Educational Methods
- Mechanical and Optical Resonators
- Thermal Expansion and Ionic Conductivity
- Innovative Microfluidic and Catalytic Techniques Innovation
- Magnesium Oxide Properties and Applications
- Molecular Junctions and Nanostructures
- Metamaterials and Metasurfaces Applications
- Additive Manufacturing Materials and Processes
- Evaluation of Teaching Practices
- Nanomaterials and Printing Technologies
- Supramolecular Self-Assembly in Materials
- Radioactive element chemistry and processing
- Polyoxometalates: Synthesis and Applications
Lawrence Livermore National Laboratory
2014-2021
Lawrence Livermore National Security
2018
University of California, Davis
2018
Michigan State University
1990-1996
Microlattices make marvelous materials Framework or lattice structures can be remarkably strong despite their very low density. Using a precise technique known as projection microstereolithography, Zheng et al. fabricated octet microlattices from polymers, metals, and ceramics. The design of the lattices meant that individual struts making up did not bend under pressure. were therefore exceptionally stiff, strong, lightweight. Science , this issue p. 1373
Ice floating on water is a great manifestation of negative thermal expansion (NTE) in nature. The limited examples natural materials possessing NTE have stimulated research engineered structures. Previous studies structures were mostly focused theoretical design with experimental demonstration two-dimensional planar geometries. In this work, aided multimaterial projection microstereolithography, we experimentally fabricate lightweight lattices that exhibit significant three directions and...
Typically, mechanical metamaterial properties are programmed and set when the architecture is designed constructed, do not change in response to shifting environmental conditions or application requirements. We present a new class of architected materials called field responsive metamaterials (FRMMs) that exhibit dynamic control on-the-fly tunability enabled by careful design selection both material composition architecture. To demonstrate FRMM concept, we print complex structures composed...
Abstract Early examples of computers were almost exclusively based on mechanical devices. Although electronic became dominant in the past 60 years, recent advancements three-dimensional micro-additive manufacturing technology provide new fabrication techniques for complex microstructures which have rekindled research interest computations. Here we propose a digital computation approach additively-manufacturable micro-mechanical logic gates. The proposed gates (i.e., NOT, AND, OR, NAND, and...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxygen quenching of electronically excited hexanuclear molybdenum and tungsten halide clustersJulie A. Jackson, Claudia. Turro, Mark D. Newsham, Daniel G. NoceraCite this: J. Phys. Chem. 1990, 94, 11, 4500–4507Publication Date (Print):May 1, 1990Publication History Published online1 May 2002Published inissue 1 1990https://doi.org/10.1021/j100374a029RIGHTS & PERMISSIONSArticle Views488Altmetric-Citations138LEARN ABOUT THESE METRICSArticle Views are...
We validate the predicted performance of new lattice materials that are stiff despite appearing to violate Maxwell criterion.
Microbes are critical drivers of all ecosystems and many biogeochemical processes, yet little is known about how the three-dimensional (3D) organization these dynamic organisms contributes to their overall function. To probe biofilm structure affects microbial activity, we developed a technique for patterning microbes in 3D geometries using projection stereolithography bioprint within hydrogel architectures. Bacteria were printed monitored biomass accumulation, demonstrating postprint...
The molybdenum(II) chloride cluster Mo6Cl12 has been immobilized on 2% cross-linked poly(4-vinylpyridine) (PVP-Mo6Cl12) by the axial ligation of two pendant pyridines polymer to hexanuclear metal core. Polymers with different loadings exhibit characteristic broad band emission at λmax = 765 ± 3 nm, and luminescence decays are composed short- long-lifetime components, which consistent presence cis- trans-disubstituted species, respectively. lifetime cis form is too short permit its...
Compared to tedious, multi-step treatments for electroless gold plating of traditional thermoplastics, this communication describes a simpler three-step procedure 3D printed crosslinked polyacrylate substrates. This allows the synthesis ultralight foam microlattice materials with great potential architecture-sensitive applications in future energy, catalysis, and sensing.
Electrophoretic deposition (EPD) has traditionally been viewed as a thin film technique for coating conductive surfaces. Recently, there have reports of producing functional parts with EPD to near net shape, often containing gradients in material properties normal the surface. By using reconfigurable electrode systems, few researchers gone beyond purely out-of-plane and demonstrated plane electrode, necessary condition 3D additive manufacturing. In this work, we build upon previously...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidation of alcohols by hexanuclear cluster ionsJulie A. Jackson, Robert D. Mussell, and Daniel G. NoceraCite this: Inorg. Chem. 1993, 32, 21, 4643–4645Publication Date (Print):October 1, 1993Publication History Published online1 May 2002Published inissue 1 October 1993https://doi.org/10.1021/ic00073a029RIGHTS & PERMISSIONSArticle Views102Altmetric-Citations17LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article...