当前位置: X-MOL 学术J. Biomed. Mater. Res. Part B Appl. Biomater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Gelatin improves peroxidase-mediated alginate hydrogel characteristics as a potential injectable hydrogel for soft tissue engineering applications.
Journal of Biomedical Materials Research Part B: Applied Biomaterials ( IF 3.4 ) Pub Date : 2020-04-29 , DOI: 10.1002/jbm.b.34625
Fatemeh Morshedloo 1, 2 , Ali Baradar Khoshfetrat 1, 2 , Davoud Kazemi 3 , Mehri Ahmadian 1, 2
Affiliation  

To develop an efficient injectable alginate‐based hydrogel for soft tissue engineering applications, phenol moiety (Ph) was introduced into alginate (Alg‐Ph), and the influence of gelatin as cell adhesive molecule was evaluated on the peroxidase‐mediated alginate hydrogel properties and cultured chondrocytic cell behavior. Addition of gelatin (1.5% w/v) to Alg‐Ph (1.5% w/v) hydrogels (Alg‐Ph/gelatin) regulated characteristics of the enzymatically gellable alginate hydrogel with increasing gelation time to 5.1 min (76%). Swelling ratio and degradation rates of the Alg‐Ph/gelatin hydrogel also increased 60 and 100%, respectively, while the mechanical strength value was 35% less than the Alg‐Ph hydrogel. Scanning electron microscopy images showed that the addition of gelatin could also increase uniformity of pore sizes inside the Alg‐Ph/gelatin hydrogels. The chondrocyte cells maintained their original phenotype and revealed statistically more metabolic activities in the Alg‐Ph/gelatin hydrogel. Hydrogels subscutaneously implanted in rats could also be identified readily without complete absorption and signs of toxicity or any untoward reactions after 1 month. Viable chondrocyte cells inside globular aggregates were seen as red colored areas in the cell‐laden hydrogels. The study demonstrates that enzymatically gellable alginate/gelatin hydrogel has fair potential as a natural‐based injectable hydrogel for soft tissue engineering applications.

中文翻译:

明胶改善了过氧化物酶介导的藻酸盐水凝胶特性,作为软组织工程应用的潜在可注射水凝胶。

为了开发一种用于软组织工程应用的高效可注射海藻酸盐基水凝胶,将苯酚部分 (Ph) 引入海藻酸盐 (Alg-Ph) 中,并评估了明胶作为细胞粘附分子对过氧化物酶介导的海藻酸盐水凝胶性质的影响和培养的软骨细胞行为。将明胶 (1.5% w/v) 添加到 Alg-Ph (1.5% w/v) 水凝胶 (Alg-Ph/明胶) 可调节可酶促胶凝的藻酸盐水凝胶的特性,胶凝时间增加至 5.1 分钟 (76%)。Alg-Ph/明胶水凝胶的溶胀率和降解率也分别增加了 60% 和 100%,而机械强度值比 Alg-Ph 水凝胶低 35%。扫描电子显微镜图像表明,添加明胶还可以增加 Alg-Ph/明胶水凝胶内孔径的均匀性。软骨细胞保持其原始表型,并在 Alg-Ph/明胶水凝胶中显示出更多的代谢活动。皮下植入大鼠的水凝胶也可以很容易地识别出来,1 个月后没有完全吸收和毒性迹象或任何不良反应。球状聚集体内的活软骨细胞被视为充满细胞的水凝胶中的红色区域。该研究表明,可酶促胶凝的海藻酸盐/明胶水凝胶作为用于软组织工程应用的天然可注射水凝胶具有相当大的潜力。软骨细胞保持其原始表型,并在 Alg-Ph/明胶水凝胶中显示出更多的代谢活动。皮下植入大鼠的水凝胶也可以很容易地识别出来,1 个月后没有完全吸收和毒性迹象或任何不良反应。球状聚集体内的活软骨细胞被视为充满细胞的水凝胶中的红色区域。该研究表明,可酶促胶凝的海藻酸盐/明胶水凝胶作为用于软组织工程应用的天然可注射水凝胶具有相当大的潜力。软骨细胞保持其原始表型,并在 Alg-Ph/明胶水凝胶中显示出更多的代谢活动。皮下植入大鼠的水凝胶也可以很容易地识别出来,1 个月后没有完全吸收和毒性迹象或任何不良反应。球状聚集体内的活软骨细胞被视为充满细胞的水凝胶中的红色区域。该研究表明,可酶促胶凝的海藻酸盐/明胶水凝胶作为用于软组织工程应用的天然可注射水凝胶具有相当大的潜力。球状聚集体内的活软骨细胞被视为充满细胞的水凝胶中的红色区域。该研究表明,可酶促胶凝的海藻酸盐/明胶水凝胶作为用于软组织工程应用的天然可注射水凝胶具有相当大的潜力。球状聚集体内的活软骨细胞被视为充满细胞的水凝胶中的红色区域。该研究表明,可酶促胶凝的海藻酸盐/明胶水凝胶作为用于软组织工程应用的天然可注射水凝胶具有相当大的潜力。
更新日期:2020-04-29
down
wechat
bug