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  • 1
    Electronic Resource
    Electronic Resource
    Soft magnetic properties of as-deposited Fe–Hf–C–N and Fe–Hf–N nanocrystalline thin films : The 7th joint MMM-intermag conference on magnetism and magnetic materials (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 6652-6654 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: As-deposited Fe–Hf–C–N nanocrystalline thin films are investigated to improve soft magnetic properties by controlling both the compositions of the films and sputtering conditions, such as input power and N2 partial pressure. As-deposited Fe–Hf–N thin films are also investigated for the applications to simplify the fabrication of magnetic devices. The as-deposited Fe–Hf–C–N and the as-deposited Fe–Hf–N thin films are fully nanocrystallized during deposition by controlling the composition and sputtering condition. The thin films show the excellent soft magnetic properties of saturation magnetization ∼17.5 kG/∼16.5 kG and coercivity ∼0.5 Oe/∼0.5 Oe when the compositions of each film are 6.8–7.2 at % Hf, 2.0–2.5 at % C, 9.8–10.8 at % N, and balanced Fe/6.3–7.0 at % Hf, 13.2–14.0 at % N, and balanced Fe, respectively. Both of the thin films exhibit an outstanding frequency dependence of permeabilities, i.e., the effective premeabilities of the films remain flat over 3000 up to 100 MHz. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.367526
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  • 2
    Electronic Resource
    Electronic Resource
    Production of lithospermic acid B and rosmarinic acid in hairy root cultures of Salvia miltiorrhiza (1999)
    Springer
    Journal of industrial microbiology and biotechnology 22 (1999), S. 133-138 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: Salvia miltiorrhiza; Lamiaceae; Agrobacterium rhizogenes; hairy roots; lithospermic acid B; rosmarinic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Hairy root cultures of Salvia miltiorrhiza were established by infecting sterile plantlets with Agrobacterium rhizogenes ATCC 15834, and the transformation was proved by direct detection of the inserted T-DNA by the polymerase chain reaction. As determined by HPLC, these hairy root cultures had the ability to produce lithospermic acid B (LAB), rosmarinic acid (RA) and other related phenolic compounds, the water-soluble active components of the plant. The effect of five different basal media, MS, MS-NH〈INF〉4〈/INF〉 (MS without ammonium nitrate), B5, WPM and 6,7-V on the root growth and phenolic compound production was studied. It was found that MS-NH〈INF〉4〈/INF〉 and 6,7-V media were superior to MS, B5 and WPM media in terms of both root growth and phenolic compound production. The time course of biomass accumulation and phenolic compound formation was also examined in the culture using MS-NH〈INF〉4〈/INF〉medium. During cultivation, the content of RA in the roots was stable being approximately 0.48% of dry weight while the content of LAB fluctuated between 0.73% and 1.61% of dry weight, and decreased gradually at the stationary phase of growth. The highest production of LAB and RA was about 64 mg L−1 and 23 mg L−1, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.2900624
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  • 3
    Electronic Resource
    Electronic Resource
    High-level expression of canine parvovirus VP2 using Bombyx mori nucleopolyhedrovirus vector (2000)
    Springer
    Archives of virology 145 (2000), S. 171-177 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary.  For the potential use as recombinant vaccine, canine parvovirus (CPV) major capsid protein VP2 was expressed using Bombyx mori nucleopolyhedrovirus (BmNPV) vector. CPV VP2 gene was introduced into polyhedrin-based BmNPV transfer vector pBmKSK3, and recombinant virus BmK1-Parvo was prepared. When anti-CPV.VP2 monoclonal antibody was employed in immunofluorescence staining, an intense signal was observed within BmK1-Parvo-infected Bm5 cells but not within uninfected cells or cells infected with a wild-type BmNPV-K1. In hemagglutination assay, the expression level of VP2 were 3.2 × 103 HA units/ml from infected Bm5 cells, 2.1× 105 HA units/larvae from infected larval fat body, and 1.6× 106 HA units/ml from infected larval hemolymph. These results suggested that BmNPV vector system using B. mori larva as host could be applied to efficient mass-production of recombinant vaccines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007050050014
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  • 4
    Electronic Resource
    Electronic Resource
    Electron Tomography of Mitochondria from Brown Adipocytes Reveals Crista Junctions (1998)
    Springer
    Journal of bioenergetics and biomembranes 30 (1998), S. 431-442 
    Details
    ISSN: 1573-6881
    Keywords: BAT mitochondria ; brown adipocytes ; contact sites ; crista junctions ; cristae ; cristae structure ; electron microscopy ; electron microscope tomography ; mitochondria ; mitochondrial structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Physics
    Notes: Abstract Electron microscope tomography was used to examine the membrane topology of brown adipose tissue (BAT) mitochondria prepared by cryofixation or chemical fixation techniques. These mitochondria contain an uncoupling protein which results in the conversion of energy from electron transport into heat. The three-dimensional reconstructions of BAT mitochondria provided a view of the inner mitochondrial membrane different in important features from descriptions found in the literature. The work reported here provides new insight into BAT mitochondria architecture by identifying crista junctions, including multiple junctions connecting a crista to the same side of the inner boundary membrane, in a class of mitochondria that have no tubular cristae, but only lamellar cristae. Crista junctions were defined previously as the tubular membranes of relatively uniform diameter that connect a crista membrane with the inner boundary membrane. We have also found that the cristae architecture of cryofixed mitochondria, including crista junctions, is similar to that found in chemically fixed mitochondria, suggesting that this architecture is not a fixation artifact. The stacks of lamellar cristae extended through more of the BAT mitochondrial volume than did the cristae we observed in neuronal mitochondria. Hence, the inner membrane surface area was larger in the former. In chemically fixed mitochondria, contact sites were easily visualized because the outer and inner boundary membranes were separated by an 8 nm space. However, in cryofixed mitochondria almost all the outer membrane was observed to be in close contact with the inner boundary membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020586012561
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