中国组织工程研究
中國組織工程研究
중국조직공정연구
Journal of Clinical Rehabilitative Tissue Engineering Research
2013年
47期
8155-8161
,共7页
胡妍文%王晓文%唐正海%魏兰镔%庞瑞%唐劲天
鬍妍文%王曉文%唐正海%魏蘭鑌%龐瑞%唐勁天
호연문%왕효문%당정해%위란빈%방서%당경천
生物材料%组织工程骨材料%聚甲基丙烯酸甲酯%羰基铁粉%骨水泥%磁性材料%体外升温%国家自然科学基金
生物材料%組織工程骨材料%聚甲基丙烯痠甲酯%羰基鐵粉%骨水泥%磁性材料%體外升溫%國傢自然科學基金
생물재료%조직공정골재료%취갑기병희산갑지%탄기철분%골수니%자성재료%체외승온%국가자연과학기금
背景:目前有日本学者提出采用磁性骨水泥治疗肿瘤的骨转移,然而现行磁性骨水泥添加的均为纳米级磁流体,将微米级羰基铁粉添入骨水泥的研究尚未见报道。<br> 目的:制备含不同比例微米级羰基铁粉的磁性骨水泥,并按ISO 5833标准测量相关指标及其磁性与体外升温情况。方法:将微米级羰基铁粉与聚甲基丙烯酸甲酯骨水泥混合制备成含羰基铁粉质量分数分别为0%,20%,30%,40%,50%的磁性骨水泥。将以上5组材料按ISO 5833标准测定凝固时间、聚合温度、抗压强度。并采用振动样品磁强计测定各组磁性及在交变磁场下的升温情况。<br> 结果与结论:随着羰基铁粉含量的增加,磁性聚甲基丙烯酸甲酯骨水泥的凝固时间有所延长。各组骨水泥的最高聚合温度均在65-70℃之间,并未随羰基铁粉含量的增加而改变,仅聚合温度最高点出现的时间随羰基铁粉含量提高而后延。各组骨水泥的抗压能力均大于60 MPa,但只有聚甲基丙烯酸甲酯骨水泥的抗压能力>70 MPa,符合IOS 5833标准要求。各组磁性骨水泥的磁饱和强度随羰基铁粉含量的提高而提高。在交变磁场下,磁性骨水泥的升温速率与磁场强度和羰基铁粉含量呈正相关。
揹景:目前有日本學者提齣採用磁性骨水泥治療腫瘤的骨轉移,然而現行磁性骨水泥添加的均為納米級磁流體,將微米級羰基鐵粉添入骨水泥的研究尚未見報道。<br> 目的:製備含不同比例微米級羰基鐵粉的磁性骨水泥,併按ISO 5833標準測量相關指標及其磁性與體外升溫情況。方法:將微米級羰基鐵粉與聚甲基丙烯痠甲酯骨水泥混閤製備成含羰基鐵粉質量分數分彆為0%,20%,30%,40%,50%的磁性骨水泥。將以上5組材料按ISO 5833標準測定凝固時間、聚閤溫度、抗壓彊度。併採用振動樣品磁彊計測定各組磁性及在交變磁場下的升溫情況。<br> 結果與結論:隨著羰基鐵粉含量的增加,磁性聚甲基丙烯痠甲酯骨水泥的凝固時間有所延長。各組骨水泥的最高聚閤溫度均在65-70℃之間,併未隨羰基鐵粉含量的增加而改變,僅聚閤溫度最高點齣現的時間隨羰基鐵粉含量提高而後延。各組骨水泥的抗壓能力均大于60 MPa,但隻有聚甲基丙烯痠甲酯骨水泥的抗壓能力>70 MPa,符閤IOS 5833標準要求。各組磁性骨水泥的磁飽和彊度隨羰基鐵粉含量的提高而提高。在交變磁場下,磁性骨水泥的升溫速率與磁場彊度和羰基鐵粉含量呈正相關。
배경:목전유일본학자제출채용자성골수니치료종류적골전이,연이현행자성골수니첨가적균위납미급자류체,장미미급탄기철분첨입골수니적연구상미견보도。<br> 목적:제비함불동비례미미급탄기철분적자성골수니,병안ISO 5833표준측량상관지표급기자성여체외승온정황。방법:장미미급탄기철분여취갑기병희산갑지골수니혼합제비성함탄기철분질량분수분별위0%,20%,30%,40%,50%적자성골수니。장이상5조재료안ISO 5833표준측정응고시간、취합온도、항압강도。병채용진동양품자강계측정각조자성급재교변자장하적승온정황。<br> 결과여결론:수착탄기철분함량적증가,자성취갑기병희산갑지골수니적응고시간유소연장。각조골수니적최고취합온도균재65-70℃지간,병미수탄기철분함량적증가이개변,부취합온도최고점출현적시간수탄기철분함량제고이후연。각조골수니적항압능력균대우60 MPa,단지유취갑기병희산갑지골수니적항압능력>70 MPa,부합IOS 5833표준요구。각조자성골수니적자포화강도수탄기철분함량적제고이제고。재교변자장하,자성골수니적승온속솔여자장강도화탄기철분함량정정상관。
BACKGROUND:Magnetic bone cements have been used to treat bone metastasis in Japan, which are made by adding Fe3O4 nanoparticles to bone cements. Magnetic bone cements containing micron carbonyl iron powder have not been reported. <br> OBJECTIVE:To prepare polymethylmethacrylate-based cements containing carbonyl iron powder, and to test the magnetic characterizations and the heat-generating abilities of al samples according to ISO 5833 standard in vitro. METHODS:The carbonyl iron powder was mixed with polymethylmethacrylate-based bone cement power to prepare magnetic bone cements containing 0%, 20%, 30%, 40%, and 50%carbonyl iron powder, respectively. The setting time, polymerization temperature, compressive strength, magnetic property and in vitro heat-generating ability were tested. <br> RESULTS AND CONCLUSION:The setting time and polymerization temperature were increased with the increased content of carbonyl iron powder. The highest polymerization temperature of each sample was 65-70 ℃. The increased content of carbonyl iron power could not change the highest polymerization temperature but delay its appearance. The compressive strength of each sample was higher than 60 MPa, and moreover, the compressive strength of the pure polymethylmethacrylate-based bone cement was higher than 60 MPa, which met the ISO 5833 standard. The saturation magnetic intensity was increased with the increasing of carbonyl iron power content. The heat-generating ability of magnetic bone cements had a positive correlation with the magnetic field strength and the content of carbonyl iron powder.