功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2012年
21期
2966-2969
,共4页
但年华%但卫华%林海%关林波%肖世维
但年華%但衛華%林海%關林波%肖世維
단년화%단위화%림해%관림파%초세유
脱细胞猪真皮基质%京尼平%交联
脫細胞豬真皮基質%京尼平%交聯
탈세포저진피기질%경니평%교련
acellular dermal matrix%genipin%crosslink
分别采用0、2%、49/5、8%、16%(质量分数)的京尼平(GP)交联脱细胞猪真皮基质(pADM),检测交联后材料(GP—pADM)的基本性能。研究结果表明,随着交联剂GP用量的增加,材料的收缩温度逐渐提高,抗张强度降低;电镜扫描图显示交联后材料的孔隙有缩小的趋势,并导致了吸附水率、吸湿率和溶胀率的逐渐下降;红外图谱表明交联后材料中含有共轭双键;细胞毒性试验显示,GP—pADM细胞毒性为0级,急性经口毒性实验未见明显急性毒性。
分彆採用0、2%、49/5、8%、16%(質量分數)的京尼平(GP)交聯脫細胞豬真皮基質(pADM),檢測交聯後材料(GP—pADM)的基本性能。研究結果錶明,隨著交聯劑GP用量的增加,材料的收縮溫度逐漸提高,抗張彊度降低;電鏡掃描圖顯示交聯後材料的孔隙有縮小的趨勢,併導緻瞭吸附水率、吸濕率和溶脹率的逐漸下降;紅外圖譜錶明交聯後材料中含有共軛雙鍵;細胞毒性試驗顯示,GP—pADM細胞毒性為0級,急性經口毒性實驗未見明顯急性毒性。
분별채용0、2%、49/5、8%、16%(질량분수)적경니평(GP)교련탈세포저진피기질(pADM),검측교련후재료(GP—pADM)적기본성능。연구결과표명,수착교련제GP용량적증가,재료적수축온도축점제고,항장강도강저;전경소묘도현시교련후재료적공극유축소적추세,병도치료흡부수솔、흡습솔화용창솔적축점하강;홍외도보표명교련후재료중함유공액쌍건;세포독성시험현시,GP—pADM세포독성위0급,급성경구독성실험미견명현급성독성。
Porcine acellular dermal matrix (pADM) was crosslinked by serial dosage 0, 2~, 4~, 6%, 8%, 16wt% of genipin (GP) respectively, and the properties of which were characterized with shrinkage temperature (Ts), rate of hydroscopicity, adhered water, absorbtion water, FT-IR, and SEM before and after crosslinked. With the increase of GP concentration, Ts of GP-pADM was enhanced obviously, but tensile strength declined. Observed from the SEM images of the material surface, the holes of GP-pADM tended to shrink after crosslinked, which resulted in the fall of the rate of hydroscopicity, adhered water, absorbtion water. Conjugated bouble-bonds were discovered and formed a new absorption in 2358.48cm^-1 after crosslinking. Acute oral toxicity did not appear and cytotoxicity of extraction obtainted from them respectively didn't observe in L-929 fibroblasts cultivated experiment. It was concluded that genipin was a superior crosslink agent for pADM.