Cryo-copolymerization preparation of dextran-hyaluronate based supermacroporous cryogel scaffolds for tissue engineering applications
Dongjiao ZHOU , Shaochuan SHEN , Junxian YUN , Kejian YAO , Dong-Qiang LIN
Front. Chem. Sci. Eng. ›› 2012, Vol. 6 ›› Issue (3) : 339 -347.
Cryo-copolymerization preparation of dextran-hyaluronate based supermacroporous cryogel scaffolds for tissue engineering applications
Dextran-hyaluronate (Dex-HA) based supermacroporous cryogel scaffolds for soft tissue engineering were prepared by free radical cryo-copolymerization of aqueous solutions containing the dextran methacrylate (Dex-MA) and hyaluronate methacrylate (HA-MA) at various macromonomer concentrations under the freezing condition. It was observed that the suitable total concentration of macromonomers for the preparation of Dex-HA cryogel scaffold with satisfied properties was 5% (w/w) at the HA-MA concentration of 1% (w/v), which was then used to produce the test scaffold. The obtained cryogel scaffold with 5% (w/w) macromonomer solution had high water permeability (5.1 × 10-12 m2) and high porosity (92.4%). The pore diameter examined by scanning electron microscopy (SEM) was in a broad range of 50–135 µm with the mean pore diameter of 91 µm. Furthermore, the cryogel scaffold also had good elastic nature with the elastic modulus of 17.47±1.44 kPa. The culture of 3T3-L1 preadipocyte within the scaffold was investigated and observed by SEM. Cells clustered on the pore walls and grew inside the scaffold indicating the Dex-HA cryogel scaffold could be a promising porous biomaterial for applications in tissue engineering.
cryogel scaffold / tissue engineering / dextran / hyaluronate / 3T3-L1 preadipocyte
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
Higher Education Press and Springer-Verlag Berlin Heidelberg
/
| 〈 |
|
〉 |