Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Antibacterial Effects of Sol-Gel Derived Zinc-Containing Hydroxyapatite (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 361-363 (Nov. 2007), p. 139-142 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In order to modify the biological properties of pure hydroxyapatite (HAp), two kinds ofzinc-containing HAp, which had zinc content of 5.10wt% and 2.54wt%, respectively, weresynthesized via sol-gel technique. The obtained coatings were characterized by X-ray diffraction(XRD) and scanning electron microscope (SEM). Then the antibacterial effects were evaluatedthrough bacteriostatic test on Streptococcus mutans (S.mutans) in vitro and zinc ions releasingability was investigated through detecting the zinc ions concentration by inductively coupledplasma-atomic emission spectroscopy (ICP-AES). The obtained coatings were observed to possesstypical apatite peaks in XRD patterns and high homogeneous and porous surfaces in SEMmorphology. The coating layer demonstrated good releasing ability in Brain Heart Infusion (BHI)liquid and obviously inhibitory effects to the growth and proliferation of S. mutans. Based on theresults obtained above, it is concluded that the sol-gel derived zinc-containing hydroxyapatite couldbe applied as an antibacterial effective biomaterial
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.139.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Erosion of Dental Glass Infiltrated Aluminum Ceramics (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 284-286 (Apr. 2005), p. 873-876 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The erosion of dental glass infiltrated aluminum ceramics by sandblasting was evaluated. The variations of wear depth, surface roughness and bending strength after blasting were of particular interest. The sandblasting parameters of working pressures, times and erodent size came from routine manufacturing procedures. The results showed the erodent size affects the bending strength and pressure affects mainly the wear depth. The surface roughness increased significantlyafter sandblasting, but the differentiations with various blasting parameters were not apparent. Fatigue cracking characterized the mechanisms of erosion of dental glass infiltrated ceramics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/49/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.284-286.873.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Exploring Antibacterial and Antiadhesive Activities of Titanium Surface Modified with Hydroxyapatite Sol-Gel Containing Silver (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 653-656 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Circumambient tissues infection is a common complication of implanted percutaneousand permucosal devices (PDs). In order to counter the infection, the titanium abutment surface ofPDs was modified to achieve antibacterial and antiadhesive activities. Titanium discs wereimmersed into hydroxyapatite (HA) sol containing different mass fraction silver and thermallytreated to get modified discs. The modified discs become more smoother and get crystal HAcoatings containing silver. Silver ion release test demonstrate the release rate is very slow and thecoating is a reservoir of silver. The antibacterial and antiadhesive effects of modified discs onStaphylococcus aureus and Porphyromonas gingivalis were evaluated. Modified titanium discs withsilver significantly inhibited the growth of these two bacteria compared with both the polishedtitanium discs control and modified titanium discs without silver. And titanium discs modified withmore silver have higher antibacterial activity and less bacteria adhesion in this study. These findingsindicate that titanium surface modified with the HA sol-gel containing silver could achieveantibacterial and antiadhesive activities, and the abutments of PDs are promising to be modified bythis method
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.653.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Evaluation of Sodium Titanate Coating on Titanium by Sol-Gel Method In Vitro (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 777-780 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this study, an exclusive sodium titanate (Na2Ti6O13) coating on titanium was fabricatedby sol-gel method and evaluated in vitro. The coating was characterized by SEM and XRD. Thebioactivity of the Na2Ti6O13 coating was evaluated by the biomimetic growth of apatite on its surfaceafter soaked in an acellular simulated body fluid (SBF) for a period of time. In vitro osteoblastsculture was carried out to determine cytocompatibility by the measurement of the proliferation andalkaline phosphatase (ALP) activity of the cells. XRD patterns showed that Na2Ti6O13 was wellcrystallized when the coating was heated at 800℃. SEM observation exhibited that the Na2Ti6O13coated titanium had a homogeneous surface without any cracks. After immersion in SBF, the apatitelayer can be formed on the coating. The cells culture showed that the osteoblasts grew well on theNa2Ti6O13 coated titanium. It can be concluded that Na2Ti6O13 coating on titanium obtained bysol-gel method is bioactive
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.777.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Development of Ultrafine Fibrous Hydroxyapatite/Polymer Scaffold by Electrospinning (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1703-1706 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A three-dimensional biomimetic electrospun scaffold was prepared from a nanohydroxyapatite/polymer blend in the present study. Viscosity of n-HA/PEA compound solution determined byPEA concentration and additives of n-HA was investigated while other parameters were fixed in theelectrospinning process. The fiber diameter increased with the increasing viscosity of solution. 20wt%n-HA in the composite ultrafine fibrous scaffold was proved to be a preferable ratio. The n-HA/PEAscaffold was characterized by XRD, SEM and EDX. The fibrous electrospun scaffold, which is made upof ultrafine fibers with average diameter 400±50 nm and well-interconnected pores, was characterizedwith high surface–to-volume ratio, which is conducive to cell and tissue growth. A comparativelyuniform distribution of n-HA crystals in a single fiber even in the whole scaffold was confirmed by EDX.The biocompatibility of the composite was investigated by culturing osteobalsts on the scaffold. Goodcell adhesion and proliferation manner was observed on the fibrous scaffold by SEM and MTT assay. Itcould be expected that the electrospun HA/PEA composite scaffold would be a potential biomimeticextracellular matrix biomaterial for bone tissue engineering
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1703.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...