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Walwyn, Robert J.,Chan, Bun,Usov, Pavel M.,Solomon, Marcello B.,Duyker, Samuel G.,Koo, Jin Young,Kawano, Masaki,Turner, Peter,Kepert, Cameron J.,D'Alessandro, Deanna M. The Royal Society of Chemistry 2018 Journal of materials chemistry. C, Materials for o Vol.6 No.5
<P>This paper reports additional properties of the electron donor molecule triselenathiafulvalene (TSTF) and its synthesis <I>via</I> a new route involving the precursor tetracarbomethoxytriselenathiafulvalene (TCMTSTF). The structural, electronic and computational properties of TSTF are fully profiled, and discussed in the context of the closely related archetypal electron donor molecule tetrathiafulvalene (TTF). TSTF was also incorporated into a charge transfer (CT) complex with the well-known electron acceptor 7,7,8,8-tetracyanoquinodimethane (TCNQ), to generate TSTF-TCNQ. In order to establish its position in the greater TXF-TCNQ series (where TXF = a tetrachalcogenafulvalene), spectral, electrochemical, magnetic, conductivity and computational studies were performed on TSTF and TSTF-TCNQ to extend what is known about the highly interesting and useful new donor molecule.</P>
Kang, Bo Soo,Stan, Liliana,Usov, Igor O.,Lee, Jung‐,Kun,Harriman, Tres A.,Lucca, Don A.,DePaula, Raymond F.,Arendt, Paul N.,Nastasi, Michael,MacManus‐,Driscoll, Judith L.,Park, Bae Ho,Jia, WILEY‐VCH Verlag 2011 Advanced Engineering Materials Vol.13 No.12
<P><B>Abstract</B></P><P>A novel strain mismatch induced tilted epitaxy method has been demonstrated for producing high quality (000l) hexagonal films on (001) cubic substrates. Highly oriented hexagonal (000l) ZnO films are grown on cubic (001) MgO substrates using Sm<SUB>0.28</SUB>Zr<SUB>0.72</SUB>O<SUB>2−<B>δ</B></SUB> (SZO) as a template. The large lattice mismatch of >13% between the obvious crystallographic matching directions of the template and substrate means that cube‐on‐cube epitaxy is energetically unfavorable, leading to growth instead of two high index, low energy compact planes, close to the {111} orientation. These planes give three different in‐plane orientations resulting from coincidence site lattice matching (12 in‐plane orientations in total) and provide a pseudo‐hexagonal symmetry surface for the ZnO to grow on. The texture of the ensuing (000l) ZnO layer is markedly improved over the template. The work opens up both a new avenue for growing technologically important hexagonal structures on a range of readily available, (001) cubic substrates, as well as showing that there are wide possibilities for heteroepitaxial growth of a range of dissimilar materials.</P>
Vladimir V. Popov Jr.,Gary Muller-Kamskii,Alexander Katz-Demyanetz,Aleksey Kovalevsky,Stas Usov,Dmitrii Trofi mcow,Georgy Dzhenzhera,Andrey Koptyug 대한의용생체공학회 2019 Biomedical Engineering Letters (BMEL) Vol.9 No.1
The paper outlines the achievements and challenges in the additive manufacturing (AM) application to veterinary practice. The state-of-the-art in AM application to the veterinary surgery is presented, with the focus of AM for patient-specifi cimplants manufacturing. It also provides critical discussion on some of the potential issues design and technology shouldovercome for wider and more eff ective implementation of additively manufactured parts in veterinary practices. Most of thediscussions in present paper are related to the metallic implants, manufactured in this case using so-called powder bed additivemanufacturing (PB-AM) in titanium alloy Ti–6AL–4V, and to the corresponding process of their design, manufacturing andimplementation in veterinary surgery. Procedures of the implant design and individualization for veterinary surgery are illustratedbasing on the four performed surgery cases with dog patients. Results of the replacement surgery in dogs indicate thatindividualized additively manufactured metallic implants signifi cantly increase chances for successful recovery process, andAM techniques present a viable alternative to amputation in a large number of veterinary cases. The same time overcomingchallenges of implant individualization in veterinary practice signifi cantly contributes to the knowledge directly relevant tothe modern medical practice. An experience from veterinary cases where organ-preserving surgery with 3D-printed patientspecific implants is performed provides a unique opportunity for future development of better human implants.