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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Biochemistry -- Technique. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (281 pages)
    Edition: 1st ed.
    ISBN: 9780080858821
    Series Statement: Issn Series ; v.Volume 13
    Language: English
    Note: Front Cover -- Monoclonal Antibody Technology -- Copyright Page -- Contents -- Preface -- Acknowledgements -- Abbreviations -- Chapter 1. General properties and applications of monoclonal antibodies -- 1.1. Introduction -- 1.2. Comparison of monoclonal antibodies and conventional antiserum -- 1.3. Application of monoclonal antibodies -- Chapter 2. Assay techniques -- 2.1. General assay requirements -- 2.2. Theoretical considerations -- 2.3. Practical considerations -- 2.4. Antibody sampling -- 2.5. Types of assay -- 2.6. Solid-phase-assays -- 2.7. Soluble-phase systems -- 2.8. Cellular assays -- 2.9. Biological assays -- 2.10 Immunocytochemical assays -- Chapter 3. Selection of animals and cell lines -- 3.1. Choice of animal -- 3.2. Choice of cell lines -- 3.3. Selective drug markers -- 3.4. The mouse system -- 3.5. The rat system -- 3.6. The human system -- 3.7. T cell lines -- Chapter 4. Immunisation -- 4.1. Introduction -- 4.2. Immunisation schedules -- 4.3. Immunisation in vitro -- 4.4. Isotype enrichment -- Chapter 5. Cell culture requirements for hybridomas -- 5.1. Introduction -- 5.2. Basic requirements -- 5.3. Basic cell-culture techniques -- 5.4. Contamination -- 5.5. Feeder cells -- Chapter 6. Fusion procedures -- 6.1. The use of polyethylene glycol -- 6.2. The components of HAT medium -- 6.3. Selection of hybridomas by fluorescence activated cell sorting -- 6.4. Preparation of stock solutions -- 6.5. Fusion frequencies and plating densities -- 6.6. Fusion protocols for mouse experiments -- Chupter 7. Transformation -- 7.1. Introduction -- 7.2. Pre-selection of lymphocytes of pre-defined specificity -- 7.3. Pre-selection of T lymphocytes -- 7.4. Transformation -- 7.5. Transformation followed by fusion -- Chapter 8. Selection and cloning -- 8.1. Early feeding and assay of fusions -- 8.2. Failure of fusions -- 8.3. Cloning of hybridomas. , 8.4. Failure of cloning -- 8.5. Continuation of cloning -- Chapter 9. Antibody production and purification -- 9.1. Maintenance of cell stocks -- 9.2. Expansion of hybridomas in vitro -- 9.3. Expansion of hybridomas in vivo -- 9.4. Failure in expansion -- 9.5. Storage of antibody -- 9.6. Concentrating the antibody -- 9.7. Purification of the antibody -- Chapter 10. Characterisation of monoclonal antibodies -- 10.1. Introduction -- 10.2. Determination of antibody class -- 10.3. Proof that the antibody is monoclonal -- 10.4. Epitope analysis -- 10.5. Determination of antibody affinity -- 10.6. Karyotype analysis of hybridomas -- Appendix 1. Animal handling techniques -- Appendix 2. Addresses of suppliers and manufacturers -- Appendix 3. Protocols for polyacrylamide gel electrophoresis (PAGE) -- References -- Addendum -- Subject Index.
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  • 2
    Keywords: Monoclonal antibodies. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (455 pages)
    Edition: 1st ed.
    ISBN: 9780080887357
    Series Statement: Issn Series ; v.Volume 23
    Language: English
    Note: Front Cover -- Monoclonal Antibody and Immunosensor Technology -- Copyright Page -- Contents -- Preface -- Acknowledgements -- Abbrevations -- Chapter 1. General properties and applications of monoclonal antibodies -- 1.1. History of Mab technology -- 1.2. Introduction to Mab technology -- 1.3. Specificity/affinity - the contribution of monoclonal antibody -- 1.4. Specificity/affinity - the contribution of antigen -- 1.5. Specificity/affinity - the contribution of the assay system -- 1.6. Pooling of Mabs -- 1.7. The standard nature of Mabs -- 1.8. Yield and purity -- 1.9. Human monoclonal antibodies (HuMabs) -- 1.10. Chimaeric bifunctional monoclonal antibodies -- 1.11. Applications of Mabs - Diagnostic -- 1.12. Therapeutic applications -- 1.13. Mabs in vaccine development strategies -- 1.14. Mabs as catalysts (abzymes) -- 1.15. Mabs in purification -- 1.16. Mabs in basic immunological research -- 1.17. Patent considerations for Mabs -- 1.18. Buying a Mab -- Chapter 2. Assay techniques -- 2.1. General assay requirements -- 2.2. Theoretical considerations -- 2.3. Practical screening in the lab -- 2.4. Antibody sampling -- 2.5. Types of assay -- 2.6. Solid-phase assays -- 2.7. Protocols for solid-phase assays -- 2.8. Screening for cellular antigens by FACS -- 2.9. Screening for cellular antigens by immunocytochemical methods -- 2.10. Screening for catalytic antibodies -- 2.11. Screening recombinant libraries -- Chapter 3. Selection of animals, tissues and cell lines -- 3.1. Animals in which hybridomas may be generated -- 3.2. Whether to choose the rat or mouse system -- 3.3. Selective drug markers -- 3.4. The mouse system -- 3.5. The rat system -- 3.6. The human system -- 3.7. T cell lines -- 3.8. Tissues used as sources of B cells -- Chapter 4. Immunisation -- 4.1. How the natural immune response operates -- 4.2. Is it necessary to immunise?. , 4.3. Is it necessary to know precisely what the antigen is? -- 4.4. Purity of antigen -- 4.5. The use of previously determined schedules -- 4.6. Strains of rodent -- 4.7. Age and sex of rodent -- 4.8. Tolerance, overimmunisation and underimmunisation -- 4.9. Adjuvants -- 4.10. In vitro immunisation -- 4.11. Production of specific antibody isotypes -- 4.12. Routes of immunisation -- 4.13. Schedules -- 4.14. Specific examples - proteins -- 4.15. Specific examples - carbohydrates -- 4.16. Specific examples - lipids and nucleic acids -- 4.17. Specific examples - haptens -- 4.18. Specific examples - whole cells and organisms -- 4.19. Immunisation of human subjects -- Chapter 5. Cell culture requirements for hybridomas -- 5.1. Introduction -- 5.2. Basic cell culture requirements -- 5.3. Basic cell culture techniques -- 5.4. Contamination -- 5.5. Feeder cells -- Chapter 6. Fusion procedures -- 6.1. The use of polyethylene glycol -- 6.2. The components of HAT medium -- 6.3. Selection of hybridomas by fluorescent activated cell sorting (FACS) -- 6.4. Preparation of stock solutions -- 6.5. Fusion frequencies and plating densities -- 6.6. Fusion protocols for mouse experiments -- 6.7. Electrofusion -- Chapter 7. Alternative strategies for the immortalisation of antibody producing cells -- 7.1. Introduction -- 7.2. Pre-selection of lymphocytes with defined cell surface markers or antigen binding capacity -- 7.3. Pre-selection of T lymphocytes -- 7.4. Transformation of B lymphocytes -- 7.5. Post-transformation strategies -- 7.6. Transformation with oncogenes -- 7.7. Short term cloning of B cells in lymphokine enriched medium -- Chapter 8. Selection and cloning -- 8.1. Early feeding and assay of fusions -- 8.2. Failure of fusions -- 8.3. Cloning of hybridomas -- 8.4. Failure of cloning -- 8.5. Continuation of cloning. , Chapter 9. The use of recombinant DNA methods -- 9.1. Background -- 9.2. Antibody genes -- 9.3. Whether to make whole antibody, or its subfragments -- 9.4. The steps involved in cloning of antibody genes -- 9.5. Expression in E. coli -- 9.6. Recombinant techniques involving the use of PCR -- 9.7. Where recombinant DNA technology will be of value -- Chapter 10. Antibody production and purification -- 10.1. Maintenance of cell stocks -- 10.2. Expansion of hybridomas on a laboratory scale (1-20 mg Ab) -- 10.3. Expansion in vitro for more extensive characterisation -- 10.4. Expansion of hybridomas in vivo -- 10.5. Storage of Mabs -- 10.6. Purification of Mabs -- 10.7. Purification of IgM Mabs -- 10.8. Purification of IgA Mabs -- Chapter 11. Characterisation of monoclonal antibodies -- 11.1. Introduction -- 11.2. Determination of antibody class -- 11.3. Proof that the antibody is monoclonal -- 11.4. Epitope analysis -- 11.5. Characterisation of cell surface antigens -- 11.6. Determination of antibody affinity -- 11.7. Karyotype analysis of hybridomas -- Chapter 12. Immunosensors -- 12.1. Biosensors -- 12.2. Enzyme biosensors using enzymes as sensing elements -- 12.3. The difference between enzyme based sensing elements and antibody based sensing elements -- 12.4. Requirement and potential application of antibody based immunosensors -- 12.5. Classification of immunosensor systems -- 12.6. General rules for adapting a Mab or panel of Mabs into a biosensor system -- 12.7. Labelling Mabs and their antigens -- Appendix 1 - Animal handling techniques -- A.1.1. Introduction -- A.1.2. Requirement for animal handling licence -- A.1.3. Handling -- A.1.4. Immunisation -- A.1.5. Serum collection -- A.1.6. Removal of tissues at sacrifice -- A.1.7. Ascites fluid -- Appendix 2 - Addresses of Suppliers and Manufacturers. , Appendix 3 - Protocols for polyacrylamide gel electrophoresis (PAGE) -- A.3.1. Introduction -- A.3.2. Slab gel apparatus -- A.3.3. SDS-PAGE (sodium dodecyl sulphate-polyacrylamide gel electrophoresis) -- A.3.4. Isoelectric focussing of immunoglobulins -- A.3.5. Electrophoresis of DNA on agarose -- A.3.6. Autoradiography or fluorography of gels -- References -- Subject index.
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 5287-5292 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetic measurements have been performed on silver clad Tl-1223 and Tl-2223 tapes and a Tl-1223 single crystal to study the critical current properties of these samples. The Tl-1223 tape is shown by both magnetic and transport experiments to exhibit a highly granular nature, much more severe than that seen in the Tl-2223 tape, and in Bi-2223 tapes fabricated by similar rolling and pressing techniques. This characteristic is explained in terms of the poor grain alignment in the Tl-1223 tape resulting from the spherical morphology of Tl-1223 powders, in contrast with the micaceous and easily aligned Bi-2223 and Bi-2212 materials. However, evidence of a small number of strong intergrain links which remain superconducting at 77 K and 8 T is clear. The Tl-1223 single crystal exhibits clear anisotropic behavior, and this, together with the lack of good crystallographic alignment in the tapes is used to explain the variations in irreversibility line behavior between sample forms. The ratio of the irreversibility fields measured with field parallel and perpendicular to the ab plane is approximately 8. A clear "fish tail'' feature is also observed in magnetic hysteresis curves obtained from the Tl-1223 single crystal. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Transport critical current measurements have been carried out on melt-processed thick films of YBa2Cu3O7−δ on yttria-stabilized zirconia in fields of up to 8 T both within grains and across grain boundaries. These measurements yield Jc values of ∼3000 A cm−2 at 4.2 K and zero magnetic field and 400 A cm−2 at 77 K and zero magnetic field, taking the entire sample width as the definitive dimension. Optical and scanning electron microscopy reveals that the thick-film grains consist typically of a central "hub'' region ∼50 μm in diameter, which is well connected to radial subgrains or "spokes'' which extend ∼1 mm to define the complete grain structure. Attempts have been made to correlate the transport measurements of inter- and intra-hub-and-spoke (H-S) critical current with values of this parameter derived previously from magnetization measurements. Analysis of the transport measurements indicates that current flow through H-S grains is constrained to paths along the spokes via the grain hub. Taking the size of the hub as the definitive dimension yields an intra-H-S grain Jc of ∼60 000 A cm−2 at 4.2 K and 0 T, which is in reasonable agreement with the magnetization data. Experiments in which the hub is removed from individual grains confirm that this feature determines critically the Jc of the film.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 2361-2367 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The critical current densities of NbTa and Ta/NbTa/Ta thin films have been measured as a function of the orientation of an applied magnetic field with respect to both the current and the film surface. It is shown that appropriate control of the deposition conditions and the film composition allow the surface pinning and Lorentz force dependence to be reliably and reproducibly altered. Comparison of the results with those reported elsewhere for high Tc films shows broadly similar behavior in the two systems. In particular, we show that surface pinning results in a (sin φ)−1/2 dependence of Jc(φ) for B perpendicular to current, similar to the dependence attributed to intrinsic pinning in high Tc systems. The results also confirm that a lack of Lorentz force dependence of transport critical current is a characteristic of a two dimensional pinning system.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 1019-1021 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A high critical-current density was observed in the material (Tl0.5Pb0.5)Sr2Ca2Cu3O9. Based on magnetic-hysteresis measurements, this single (insulating) Tl-O layer material has a Jc value of 1.24×105 A/cm2 when measured at a temperature of 77 K and a field of 1 T. This value of Jc is comparable to that measured here for YBa2Cu3O7 (1.04×105 A/cm2), having single-conducting Cu-O chains, but considerably greater than the value for the material Tl2Ba2Ca2Cu3O10 with double (insulating) Tl-O layers in which no hysteresis was observed under these same conditions. Our results from specific heat measurements indicate that the (Tl0.5Pb0.5)Sr2Ca2Cu3O9 compound has a three-dimensional character due to the enhancement of the superconducting coupling along the c axis between the Cu-O planes and thus results in an increase in Jc compared to the two-dimensional Bi- and Tl-2212 and 2223 [e.g., (Bi or Tl)2(Sr or Ba)2CaCu2O8 and (Bi or Tl)2(Sr or Ba)2Ca2Cu3O10, respectively] compounds. We believe that the high Jc is associated with an increase in the irreversibility field, rather than an increase in pinning centers.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 2554-2556 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The structure of high angle boundaries in the (BiPb)2Sr2Ca2Cu3Ox system, which is compositional and structurally modulated along the boundaries, was investigated by high resolution electron microscopy. These compositional variable boundaries tend to facet onto the (001) plane, leaving steps of height equal c/2 for the (BiPb)2Sr2CuOx and (BiPb)2Sr2Ca1Cu2Ox phases with amorphous material at the corners of these steps. These data suggest a weak link is formed at high angle boundaries where there are such lower Tc or insulating phases. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 117-119 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Artificial bulk "zero-angle" boundaries parallel to the c axis have been engineered between large melt-processed YBa2Cu3O7−δ (YBCO) grains and observed to carry a transport supercurrent at fields up to at least 5 T at 77 K. The temperature and angular dependencies of the boundary resistance have exactly the same form as those of the grains, which is evidence that the grains are intimately coupled. The limiting mechanism for current transfer across these boundaries is, therefore, not a simple weak link or Josephson effect. This joining technique is extremely promising for production of macroscopic engineering artifacts. © 1998 American Institute of Physics.
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  • 9
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 2981-2983 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Large, single grain NdBa2Cu3O7−δ (Nd123)–Nd4Ba2Cu2O10 (Nd422) composites have been fabricated up to 2 cm in diameter in a controlled 1% O2 in N2 atmosphere using a top-seeded melt growth technique. The irreversibility field as a function of temperature has been obtained from magnetic hysteresis loops for magnetic fields applied parallel and perpendicular to the c axis of small specimens ((approximate)2×2×3 mm3) cut from individual grains. These specimens are observed to exhibit a pronounced peak effect for current flowing in the a–b plane and a five-fold anisotropy in the irreversibility line over a wide temperature range for fields applied along the major crystallographic axes. An exceptionally high irreversibility field (〉12 T at 89 K) is observed in this material for field applied perpendicular to the c axis, which extrapolates to well over 40 T at 77 K. © 1999 American Institute of Physics.
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  • 10
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Histamine is one of a range of mediators which play an important role in asthma, and the “releasability” of basophils has been shown to be upregulated in this disease. In vitro, β2-agonists and to a lesser extent corticosteroids have been shown to reduce histamine release. The ex vivo effects of salmeterol and inhaled corticosteroids on histamine release were studied in 78 asthmatic patients with variable disease severity and 20 control subjects. Spontaneous and anti-IgE-induced histamine release was measured in all subjects. Fifteen patients were not receiving any form of treatment, 42 were treated with inhaled corticosteroids, and 21 received inhaled corticosteroids and salmeterol. Seven patients treated with inhaled corticosteroids and seven patients treated with inhaled corticosteroids and salmeterol were tested twice to assess the effect of salmeterol on histamine release. Nine patients treated with inhaled corticosteroids were tested before and after 1 month of salmeterol treatment to determine the possible inhibition by salmeterol. Patients who were treated with inhaled corticosteroids and salmeterol showed significantly lower levels of spontaneous histamine release (median: 2.5%) than untreated (5.2%) and inhaled corticosteroids-treated asthmatics (3.4%). No tachyphylaxis to salmeterol was observed when patients were tested twice at a 3-month interval. This study suggests that salmeterol may have an additive anti-inflammatory effect with inhaled corticosteroids, although this hypothesis must be tested by further studies involving cells obtained by bronchoalveolar lavage and studies with bronchial biopsies.
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