Mastoid Obliteration Using Three-Dimensional Composite Scaffolds Consisting of Polycaprolactone/β-Tricalcium Phosphate/Collagen Nanofibers: An In Vitro and In Vivo Study

2013 ◽  
Vol 13 (5) ◽  
pp. 660-668 ◽  
Author(s):  
Chul Ho Jang ◽  
Yong Beom Cho ◽  
Myung Gu Yeo ◽  
Geun Hyung Kim
1996 ◽  
Vol 132 (3) ◽  
pp. 516-527 ◽  
Author(s):  
Clemens von Birgelen ◽  
Carlo Di Mario ◽  
Wenguang Li ◽  
Johan C.H. Schuurbiers ◽  
Cornelis J. Slager ◽  
...  

2020 ◽  
Vol 165 ◽  
pp. 1346-1360 ◽  
Author(s):  
E.M. Mahmoud ◽  
M. Sayed ◽  
Abeer M. El-Kady ◽  
Hamada Elsayed ◽  
S.M. Naga

2011 ◽  
Vol 140 ◽  
pp. 29-33
Author(s):  
Ming Yan Zhao ◽  
Li Hua Li ◽  
Guo Dong Sun ◽  
Chang Ren Zhou

Three dimensional (3D) scaffolds provide the necessary support for cells to attach, proliferate and differentiate, and define the overall shape of the tissue engineered transplant. In this study, 3D honeycomb patterned chitosan/poly (L-lactic acid) composite scaffolds fabricated by an easy manipulated technique with good mechanical property and cytocompatability, as demonstrated by a previous study. Here we investigated further the in vitro cytocompatibility and spine regeneration in vivo by implanting the construct into male white rabbits for 4 and 8weeks. Results showed that such a honeycomb patterned scaffolds have a good cytocompatibilty. Also, the rabbit spinal defect was perfectly restored. These findings supported that such a 3D honeycomb patterned scaffold is an ideal candidate for the tissue engineering scaffold.


Author(s):  
D. Reis ◽  
B. Vian ◽  
J. C. Roland

Wall morphogenesis in higher plants is a problem still open to controversy. Until now the possibility of a transmembrane control and the involvement of microtubules were mostly envisaged. Self-assembly processes have been observed in the case of walls of Chlamydomonas and bacteria. Spontaneous gelling interactions between xanthan and galactomannan from Ceratonia have been analyzed very recently. The present work provides indications that some processes of spontaneous aggregation could occur in higher plants during the formation and expansion of cell wall.Observations were performed on hypocotyl of mung bean (Phaseolus aureus) for which growth characteristics and wall composition have been previously defined.In situ, the walls of actively growing cells (primary walls) show an ordered three-dimensional organization (fig. 1). The wall is typically polylamellate with multifibrillar layers alternately transverse and longitudinal. Between these layers intermediate strata exist in which the orientation of microfibrils progressively rotates. Thus a progressive change in the morphogenetic activity occurs.


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