蜘蛛丝是一种具有优良机械性能的天然动物蛋白纤维,是自然界极具应用潜力的生物材料,但它特有的结构和机械性能与其生物学功能密切相关。为此,本文采用扫描电镜和单纤强力仪对两种结圆网蜘蛛的卵袋框丝和内层丝与圆网铆钉丝三种不同功能蛛丝的超微结构、拉伸力学性能以及断裂能在应力应变曲线的弹性区、屈服区和加强区的分配进行了研究,结果表明不同生物学功能的蛛丝表现出不同的力学行为,并呈现一定的机械性能策略,主要表现为：断裂能在应力应变曲线的弹性区、屈服区和加强区的权衡;不同力学性能参数之间的权衡,如伸长和荷载、断裂强度和延展性等参数之间的权衡,以适应不同的功能要求。这对人们进行新型防护材料的仿生设计具有重要指导意义。
Spider silk is a natural animal protein fiber with excellent mechanical properties and has potential applications as a biological material.The biological function and spider＇s life history have shaped the silk＇s structure and mechanical properties.Here we examined spider silks with distinct biological functions： egg case scaffolding and orb web mooring silk fibers anchoring the egg case and web respectively and egg case inner cover silk of two orb web spiders,Argiope amoena and Nephila clavata,by electric single-fiber tensile apparatus and scanning electron microscopy（SEM）.Results show that spider silk fibers with different biological functions present different tensile behaviors and show the mechanical strategies or trade offs between different mechanical parameters,such as force and displacement,and among the elastic,strength and extensibility,and among elastic,yield and hardening region in the tensile behavior under absorbing and dissipating certain energy in order to optimally match to the biological functional requirements of individuals.This might be helpful to guide biomimetic design of novel safe-guarding materials.
参考文献
| [1] | 尹长民.中国动物志.蛛形纲.蜘蛛目.园蛛科[M].北京:科学出版社,1997:195-196. |
| [2] | 蒋平,卓春晖,杨文博,郭聪.棒络新妇和悦目金蛛丝腺形态初步观察[J].蛛形学报,2006(02):90-97. |
| [3] | R. Foelix.Biology of spiders[M].Oxford,uk:oxford University Press,1996 |
| [4] | Vollrath. F .Strength and structure of spider' silks[J].Review Biological Macromolecules,2000,74:67-83. |
| [5] | Hu X;Vasanthavada K;Kohler K;McNary S;Moore AMF;Vierra CA .Molecular mechanisms of spider silk[J].Cellular and molecular life sciences: CMLS,2006(17):1986-1999. |
| [6] | F. Vollrath .Strength and structure of spider' silks[J].Biological Maeromolecules,2000,74:67-83. |
| [7] | J. M. Gosline;P. A. Guerette. .[J].Journal of Experimental Biology,1999,202:3295-3303. |
| [8] | Merri Lynn Casem;Dianna Turner;Kelly Houchin .Protein and amino acid composition of silks from the cob weaver, Latrodectus hesperus (black widow)[J].International Journal of Biological Macromolecules: Structure, Function and Interactions,1999(2/3):103-108. |
| [9] | 刘敏,李春萍,潘志娟,唐莹.蜘蛛丝力学性能的多变性[J].材料科学与工程学报,2003(02):228-230. |
| [10] | B. Madsen;Zheng Zhong Shao;F. Vollrath. .[J].International Journal of Biological Macromolecules,1999,24:301-306. |
| [11] | J.M. Gosline;M. E. DeMont;M.W. Denny .The structure and properties of spider silk[J].Endeavour,1986,10:37-43. |
| [12] | S. Kubik .High-Performance fibres from spider silk[J].Angewandte Chemie International Edition,2002,41:2721-2723. |
| [13] | Hinman,MB;Jones,JA;Lewis,RV .Synthetic spider silk: a modular fiber.[J].Trends in Biotechnology,2000(9):374-379. |
| [14] | E. Maynes;S. Mann;F. Vollrath. .[J].Advanced Materials,1998,10:801-805. |
| [15] | Jessica E. Garb;Cheryl Y. Hayashi .Modular evolution of egg case silk genes across orb-weaving spider superfamilies[J].Proceedings of the National Academy of Sciences of the United States of America,2005(32):11379-11384. |
| [16] | Cedric Dicko;Fritz Vollrath;John M.Kenney .Spider Silk Protein Refolding Is Controlled by Changing pH[J].Biomacromolecules,2004(3):704-710. |
| [17] | Savage KN;Gosline JM .The effect of proline on the network structure of major ampullate silks as inferred from their mechanical and optical properties.[J].The Journal of Experimental Biology,2008(12):1937-1947. |
| [18] | M. Tian;R.V. Lewis .Tubuliform silk protein: A protein with unique molecular characteristies and mechanical properties in the spider silk fibroin family[J].Applied Physics A,2006,82:265-273. |
| [19] | 盛家镛,潘志娟,陈宇岳,苏雯萍.蜘蛛丝的化学组成与结构初探[J].丝绸,2000(04):8-10,12. |
| [20] | 王建林,彭卫平,赵泽祥,张和禹.大腹圆蛛丝的SEM观察及其机械性质[J].电子显微学报,2002(02):196-198. |
| [21] | 潘志娟,李春萍,刘敏,盛家镛.蜘蛛丝的皮芯层及原纤化构造[J].纺织学报,2003(04):18-20. |
| [22] | 潘志娟,朱美男.原子力显微镜下蚕丝及蜘蛛丝的微观结构[J].材料科学与工程学报,2005(03):365-368. |
| [23] | 潘志娟,李春萍,刘敏,盛家镛,李栋高.大腹圆蛛包卵丝的化学组成与物理机械性能[J].东华大学学报(自然科学版),2002(04):34-39. |
| [24] | 蒋平,沈丽,杨孔,冉丹,王劼,郭聪.三种类型蜘蛛丝的结构及生物学功能[J].动物学杂志,2003(05):10-14. |
| [25] | 蒋平,吴梦玲,肖永红,周兵,廖信军,郭聪.棒络新妇卵袋丝氨基酸组成及其力学行为[J].纺织学报,2010(05):1-5,14. |
| [26] | 蒋平,刘姝,卓春晖.干燥与拉伸对蜘蛛拖牵丝超收缩性能的影响[J].材料科学与工程学报,2010(03):352-356,369. |
| [27] | 蒋平,吕太勇,肖永红,曾建忠,周兵,郭聪.悦目金蛛和棒络新妇卯袋丝物理化学结构表征及其力学性能研究[J].生物物理学报,2010(02):149-163. |
| [28] | 蒋平,沈丽,卓春晖,郭聪.悦目金蛛拖丝的超微结构研究[J].四川动物,2007(03):501-505. |
| [29] | 刘辉芬,蒋平,肖永红,廖信军,郭聪.两种不同功能蜘蛛丝的物理化学结构表征与力学性能[J].武汉大学学报（理学版）,2010(01):93-100. |
| [30] | Fritz Vollrath .Biology of spider silk[J].International Journal of Biological Macromolecules: Structure, Function and Interactions,1999(2/3):81-88. |
| [31] | Blackledge TA;Hayashi CY .Silken toolkits: biomechanics of silk fibers spun by the orb web spider Argiope argentata (Fabricius 1775)[J].The Journal of Experimental Biology,2006(13):2452-2461. |
| [32] | P. Jiang;H.F. Liu;C.H. Wang;J.G.Huang,L.Z.Wu,C.Guo .Tensile behavior and morphology of differently degummed Silkworm cocoon silk fibres[J].Materials Letters,2006,60:919-925. |
| [33] | J. Perez-Rigueiro;M. Elices;J. LLorca .Tensile Properties of Argiope trifasciata Drag Line Silk Obtained from the Spider's Web[J].Journal of Applied Polymer Science,2001(9):2245-2251. |
| [34] | PEREZ-RIGUEIRO J. .Mechanical Properties of Single-Brin Silkworm Silk[J].Journal of Applied Polymer Science,2000(5):1270-1277. |
| [35] | G.V.Guinea;J.Perez-Rigueiro;G.R.Plaza .Volume Constancy during Stretching of Spider Silk[J].Biomacromolecules,2006(7):2173-2177. |
| [36] | Riekel C. .Applications of micro-SAXS/WAXS to study polymer fibers[J].Nuclear Instruments and Methods in Physics Research, Section B. Beam Interactions with Materials and Atoms,2003(0):106-111. |
| [37] | 蒋平,刘辉芬,肖永红,廖信军,郭聪.棒络新妇和悦目金蛛拖丝超微结构与力学行为[J].四川动物,2010(01):1-6. |
| [38] | 蒋平,肖永红,周兵,廖信军,郭聪.悦目金蛛卵袋的结构与组成[J].动物学报,2008(05):918-927. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%