Cited by 142Bone Tissue Engineering MaterialsCollagen: Extraction and CharacterizationTissue Engineering and Regenerative Medicine

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

In Vitro and in Vivo Degradation of Mineralized Collagen-Based Composite Scaffold: Nanohydroxyapatite/Collagen/Poly(L-lactide)

Liao, S.S., Cui, F.Z.·2004·Tissue Engineering

Abstract

The objective of this article was to investigate the in vitro and in vivo biodegradation of a novel biomimetic bone scaffold composite, nanohydroxyapatite/collagen/poly(L-lactide), that could be used for bone tissue engineering. For evaluation of in vitro degradation specimens were immersed into 1% trypsin/phosphate-buffered saline solution at 37 degrees C. In vivo evaluation involved the implantation of samples into the posterolateral lumbar spine of rabbits, and the retrieved specimens were analyzed by Fourier transform-infrared spectroscopy. The results demonstrated that weight loss increased continuously in vitro with a reduction in mass of 19.6% after 4 weeks. During the experimental period in vitro, the relative rate of reduction of the three components in this material was shown to differ greatly: collagen decreased the fastest, from 40% by weight to 20% in the composite; hydroxyapatite content increased from 45 to 60%; and PLA changed little. The pore structure was maintained throughout the whole experimental period in vitro; however, the thickness of the walls of the pores decreased and the surface of the walls increased in roughness. In vivo, the ratio of collagen to hydroxyapatite appeared to be slightly higher near the transverse process than in the central part of the intertransverse process. This finding may have been due to new bone matrix formation extending from the transverse to the intertransverse process.

Overview

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Crossref · 10.1089/107632704322791718

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27 of 27 references verified0 citation errors · 0 not checkable

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Citations

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Research works printed but not linked: 2

  1. Hsu F.Y., 1931, Biomaterials, 20, 1999
  2. Carter D.R., 1978, Clin. Orthop., 135, 193

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Metadata

Authors
Liao, S. S., & Cui, F. Z.
Affiliations
Tsinghua University (CN)
Venue
Tissue Engineering
Published
2004-01
Volume
10
Issue
1-2
Pages
73-80
ISSN
  • 1076-3279 (ISSN-L)
  • 1557-8690
OpenAlex
W1996507095
Cited by
142
References
27
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 2 · 2022: 2 · 2021: 6 · 2020: 8 · 2019: 2 · 2018: 2 · 2017: 6 · 2016: 13 · 2015: 15 · 2014: 7 · 2013: 4 · 2012: 10
FWCI
6.46
Type
journal article
Language
en
Open access
closed
Locations
  • Tissue Engineering (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Physical Sciences › Materials Science › Biomaterials › Collagen: Extraction and Characterization
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
biodegradation, hydroxyapatite nanoparticles, collagen, poly(L-lactic acid), bone scaffolds, bone tissue engineering, trypsin degradation, in vivo implantation, lumbar spine, new bone formation, pore structure, weight loss
MeSH terms
Animals, Collagen, Hydrogen-Ion Concentration, Lumbar Vertebrae, Polyesters, Rabbits, Temperature, Time Factors, Spectroscopy, Fourier Transform Infrared, Durapatite, Bone Substitutes, Prostheses and Implants, In Vitro Techniques

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