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  • Artikel  (4.345)
  • Polymer and Materials Science  (4.317)
  • Organic Chemistry
  • Medizin  (4.345)
  • 1
    Digitale Medien
    Digitale Medien
    Masthead (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 2 (1991) 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770020401
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  • 2
    Digitale Medien
    Digitale Medien
    Erratum (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 2 (1991), S. 215-215 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770020311
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  • 3
    Digitale Medien
    Digitale Medien
    Announcement. 2nd international scientific workshop on biodegradable polymers and plastics (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 2 (1991), S. 217-217 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770020312
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  • 4
    Digitale Medien
    Digitale Medien
    Pyrolytic carbon prosthetic heart valve occluder wear: In Vivo vs. In Vitro results for the Bjork-Shiley prosthesis (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 267-278 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: Pyrolytic carbon (Pyrolite® carbon) valve occluders from 18 clinical Bjork-Shiley prostheses recovered at necropsy were examined for wear. In situ durations extended to 12 years. Results were combined with data from 17 recovered valves in the literature to produce a data base of 35 Bjork-Shiley valves. Cumulative in vivo results were compared to in vitro, Shiley type, accelerated life-cycle tester results for Bjork-Shiley prostheses. Comparative results were then interpreted using Hertzian impact wear theory. The theory provided a rational basis for the difference in wear observed in terms of applied dynamic load levels. Furthermore, Hertzian impact wear theory yielded an estimate of in vivo total dynamic loads on the order of 1 to 22 Newtons (0.2-5 lbf.) acting on the occluder of the heart valve prosthesis.
    Zusätzliches Material: 11 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010402
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  • 5
    Digitale Medien
    Digitale Medien
    The attachment of hydroxylapatite coated polysulfone to bone (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 295-305 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: Two types of hydroxylapatite (HA) surface coatings were tested as a means for bone attachment to polysulfone implants. The first coating was a roughened surface that was created by imbedding particulate HA in a polysulfone (PS) rod. The second surface was a smooth surface where HA particles were imbedded in the PS rod and the surface of the composite machined smooth. The smooth surface permitted only bonding of bone to exposed HA: whereas, the rough surface permittted mechanical interdigitation and bone bonding to HA. Specimens were implanted transcortically in the distal femurs of 12 rabbits, and groups of 4 were sacrificed at 4, 12, and 26 weeks. The attachment strength between bone and the HA/PS implants was determined via a push-out test. The results showed a statistically significant increase in push-out force for the rough surfaced implant when compared to the smooth surfaced implant at each time period. Histological analysis of samples from the in vivo study showed what appeared to be direct bone attachment on both the rough and smooth HA/PS implants.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010405
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  • 6
    Digitale Medien
    Digitale Medien
    Anodic polarization measurements of orthopaedic implant alloys in bovine serum albumin (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 307-313 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: Anodic polarization measurements of several orthopaedic implant alloys - AISI 316L stainless steel, Co—Cr—Mo alloy (ASTM F-75), nickel-titanium (NiTi) alloy, commercial pure titanium, and Ti—6Al—4V - were carried out in Ringer's solution containing 1% bovine serum albumin (BSA) and in simple Ringer's solution. Constituent metals in the medium were analyzed by inductively coupled plasma emission spectrophotometry after measurements. Pitting potentials and total anodic current of former two alloys were constant in the two mediums and not affected by the addition of bovine serum albumin. However, the amount of dissolved metals from pure nickel and AISI 316L stainless steel were increased by the addition of BSA; dissolved metals from Co—Cr—Mo alloy were decreased by it.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010406
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  • 7
    Digitale Medien
    Digitale Medien
    Relationship of the diameter and tensile strength of nylon sutures to the USP specification and the effect of preconditioningNo benefit of any kind will be received either directly or indirectly by the authors. (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 315-320 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: Nylon monofilament sutures were tested in a straight pull as well as a conventional knot pull tensile test. In each test, sutures were evaluated following storage under prevailing atmospheric conditions or saturation in whole human blood. Blood saturation decreased the ultimate tensile strength by as much as 20%. The present investigation of sutures that were stored under prevailing atmospheric conditions substantiated the proposal previously made for polypropylene monofilaments-that 60% of the ultimate tensile strength could be established as a fundamental USP criterion for Class I monofilament sutures.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010407
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  • 8
    Digitale Medien
    Digitale Medien
    A poly-HEMA based aqueous humor draining device (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 321-327 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: An aqueous humor draining device, with size comparable to that of the Krupin tube, was constructed by using poly-HEMA material. Deposits were found on the surface of poly-HEMA when contacted in vitro with the aqueous humor of the rabbit's eye. A fibrous structure, probably composed of proteins and other macromolecules, developed on poly-HEMA surface in 15 days after the draining device was implanted into the rabbit's eye. The draining device was still in function 250 days after its implantation. SEM analysis of the retrieved poly-HEMA draining device indicated that the poly-HEMA tube opening was not blocked by any substance. These results suggest that poly-HEMA could be used as a biomaterial for construction of the aqueous humor draining device to relieve the intraocular pressure of glaucoma patients. Its long-term application awaits further investigation.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010408
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  • 9
    Digitale Medien
    Digitale Medien
    The editor's corner: New (and improved?) vs. tried and true - A biomedical dilemma (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 329-329 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010409
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  • 10
    Digitale Medien
    Digitale Medien
    FDA - Medical device news corner: The export dilemma facing the U.S. medical device industry (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 1 (1990), S. 333-333 
    Details
    ISSN: 1045-4861
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jab.770010411
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