The structural characteristics and properties of RS/NS
composite 3D scaffolds were investigated. Cell growth and
adhesion were evaluated on the composite scaffold. The RS/NS
composite was synthesized using non-bioengineered silk
fibroin protein from silkworms with an easy-to-follow protocol.
The high compressive modulus, high compressive strength,
highly porous structure, and simple fabrication technique of the
scaffold make it a good choice for bone-tissue repair
212 J. Med. Biol. Eng., Vol. 33 No. 2 2013
(a) (b)
(c) (d)
Figure 8. SEM images of C1F4 scaffold after (a) 1 and (b) 21 days of
incubation in SBF. EDX chemical analysis of C1F4 scaffold
after (c) 1 and (d) 21 days in SBF.
(a) (b)
(c) (d)
Figure 9. SEM images of F4 scaffold after (a) 1 and (b) 21 days of
incubation in SBF. EDX chemical analysis of F4 scaffold
after (c) 1 and (d) 21 days in SBF.
applications. Needle-shaped CaP crystals appeared in the RS/
NS scaffolds in SBF, showing the bioactive capability of the
scaffolds. Adherence and growth of established osteoblast cells
on the fabricated silk matrices are satisfactory. Since
regenerated fibroin cannot form complete β-sheet structures,
the utilization of NS for reinforcement is a promising strategy
for future tissue engineering applications since RS loses some
of its characteristics even after methanol treatment.
Acknowledgments
This work was partly funded by the Nanomedicine and
Tissue Engineering Research Center, Shahid Beheshti
University of Medical Sciences, Tehran. The authors would like
to thank Armin Springer, Max Bergman Center, Dresden, for
running EDX analysis and taking SEM images.
The structural characteristics and properties of RS/NS
composite 3D scaffolds were investigated. Cell growth and
adhesion were evaluated on the composite scaffold. The RS/NS
composite was synthesized using non-bioengineered silk
fibroin protein from silkworms with an easy-to-follow protocol.
The high compressive modulus, high compressive strength,
highly porous structure, and simple fabrication technique of the
scaffold make it a good choice for bone-tissue repair
212 J. Med. Biol. Eng., Vol. 33 No. 2 2013
(a) (b)
(c) (d)
Figure 8. SEM images of C1F4 scaffold after (a) 1 and (b) 21 days of
incubation in SBF. EDX chemical analysis of C1F4 scaffold
after (c) 1 and (d) 21 days in SBF.
(a) (b)
(c) (d)
Figure 9.ภาพ SEM ของนั่งร้านหลังจากที่ ( A ) และ ( B ) 1 วัน 21
บ่มใน sbf . การวัดการวิเคราะห์ทางเคมีของ F4 หลังจากที่นั่งร้าน
( c ) และ ( d ) 21 วัน sbf .
โปรแกรม เข็มรูปหมวกผลึกปรากฏใน RS /
NS นั่งร้านใน sbf แสดงความสามารถทางชีวภาพของ
นั่งร้าน ในการสร้างต่อเซลล์
บนผ้าไหมประดิษฐ์เมทริกซ์เป็นที่น่าพอใจ ตั้งแต่
regenerated fibroin cannot form complete β-sheet structures,
the utilization of NS for reinforcement is a promising strategy
for future tissue engineering applications since RS loses some
of its characteristics even after methanol treatment.
Acknowledgments
This work was partly funded by the Nanomedicine and
Tissue Engineering Research Center, Shahid Beheshti
University of Medical Sciences, Tehran. The authors would like
to thank Armin Springer, Max Bergman Center, Dresden, for
running EDX analysis and taking SEM images.
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