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Author:

Du, Tianming (Du, Tianming.) | Niu, Yumiao (Niu, Yumiao.) | Liu, Youjun (Liu, Youjun.) | Yang, Haisheng (Yang, Haisheng.) | Qiao, Aike (Qiao, Aike.) (Scholars:乔爱科) | Niu, Xufeng (Niu, Xufeng.)

Indexed by:

Scopus SCIE

Abstract:

Mineralized collagen is the basic unit in hierarchically organized natural bone with different structures. Polyacrylic acid (PAA) and periodic fluid shear stress (FSS) are the most common chemical and physical means to induce intrafibrillar mineralization. In the present study, non-mineralized collagen, extrafibrillar mineralized (EM) collagen, intrafibrillar mineralized (IM) collagen, and hierarchical intrafibrillar mineralized (HIM) collagen induced by PAA and FSS were prepared, respectively. The physical and chemical properties of these mineralized collagens with different microstructures were systematically investigated afterwards. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed that mineralized collagen with different microstructures was prepared successfully. The pore density of the mineralized collagen scaffold is higher under the action of periodic FSS. Fourier transform infrared spectroscopy (FTIR) analysis showed the formation of the hydroxyapatite (HA) crystal. A significant improvement in the pore density, hydrophilicity, enzymatic stability, and thermal stability of the mineralized collagen indicated that the IM collagen under the action of periodic FSS was beneficial for maintaining collagen activity. HIM collagen fibers, which are prepared under the co-action of periodic FSS and sodium tripolyphosphate (TPP), may pave the way for new bone substitute material applications.

Keyword:

chemical characterization physical characterization mineralized collagen microstructure

Author Community:

  • [ 1 ] [Du, Tianming]Beijing Univ Technol, Fac Environm & Life, Dept Biomed Engn, Beijing Int Sci & Technol Cooperat Base Intellige, Beijing 100124, Peoples R China
  • [ 2 ] [Niu, Yumiao]Beijing Univ Technol, Fac Environm & Life, Dept Biomed Engn, Beijing Int Sci & Technol Cooperat Base Intellige, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Youjun]Beijing Univ Technol, Fac Environm & Life, Dept Biomed Engn, Beijing Int Sci & Technol Cooperat Base Intellige, Beijing 100124, Peoples R China
  • [ 4 ] [Yang, Haisheng]Beijing Univ Technol, Fac Environm & Life, Dept Biomed Engn, Beijing Int Sci & Technol Cooperat Base Intellige, Beijing 100124, Peoples R China
  • [ 5 ] [Qiao, Aike]Beijing Univ Technol, Fac Environm & Life, Dept Biomed Engn, Beijing Int Sci & Technol Cooperat Base Intellige, Beijing 100124, Peoples R China
  • [ 6 ] [Niu, Xufeng]Beihang Univ, Key Lab Biomech & Mechanobiol, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn,Minist Educ, Beijing 100083, Peoples R China

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Source :

JOURNAL OF FUNCTIONAL BIOMATERIALS

Year: 2022

Issue: 2

Volume: 13

4 . 8

JCR@2022

4 . 8 0 0

JCR@2022

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count: 8

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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