From micro to nano contacts in biological attachment devices

被引:892
作者
Arzt, E
Gorb, S
Spolenak, R
机构
[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
[2] Max Planck Inst Dev Biol, Biol Microtribol Grp, D-72076 Tubingen, Germany
关键词
walking; adhesion; locomotion; legs; insects;
D O I
10.1073/pnas.1534701100
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Animals with widely varying body weight, such as flies, spiders, and geckos, can adhere to and move along vertical walls and even ceilings. This ability is caused by very efficient attachment mechanisms in which patterned surface structures interact with the profile of the substrate. An extensive microscopic study has shown a strong inverse scaling effect in these attachment devices. Whereas mum dimensions of the terminal elements of the setae are sufficient for flies and beetles, geckos must resort to sub-mum devices to ensure adhesion. This general trend is quantitatively explained by applying the principles of contact mechanics, according to which splitting up the contact into finer subcontacts increases adhesion. This principle is widely spread in design of natural adhesive systems and may also be transferred into practical applications.
引用
收藏
页码:10603 / 10606
页数:4
相关论文
共 21 条
  • [1] Towards a micromechanical understanding of biological surface devices
    Arzt, E
    Enders, S
    Gorb, S
    [J]. ZEITSCHRIFT FUR METALLKUNDE, 2002, 93 (05): : 345 - 351
  • [2] Attygalle AB, 2000, ZOOL-ANAL COMPLEX SY, V103, P1
  • [3] Evidence for van der Waals adhesion in gecko setae
    Autumn, K
    Sitti, M
    Liang, YCA
    Peattie, AM
    Hansen, WR
    Sponberg, S
    Kenny, TW
    Fearing, R
    Israelachvili, JN
    Full, RJ
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (19) : 12252 - 12256
  • [4] Adhesive force of a single gecko foot-hair
    Autumn, K
    Liang, YA
    Hsieh, ST
    Zesch, W
    Chan, WP
    Kenny, TW
    Fearing, R
    Full, RJ
    [J]. NATURE, 2000, 405 (6787) : 681 - +
  • [5] PULVILLI OF CALLIPHORA-ERYTHROCEPHALA (DIPTERA, BRACHYCERA) AS ADHESIVE ORGANS
    BAUCHHENSS, E
    [J]. ZOOMORPHOLOGIE, 1979, 93 (02): : 99 - 123
  • [6] Ultrastructure of attachment specializations of hexapods, (Arthropoda): evolutionary patterns inferred from a revised ordinal phylogeny
    Beutel, RG
    Gorb, SN
    [J]. JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH, 2001, 39 (04) : 177 - 207
  • [7] BREIDBACH O, 1980, Mikrokosmos, V69, P200
  • [8] Optimal combinations of imperfect objects
    Challet, D
    Johnson, NF
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (02) : 287011 - 287014
  • [9] ADHESIVE STRENGTH OF THE INSECT-TRAPPING GLUE OF A PLANT (BEFARIA-RACEMOSA)
    EISNER, T
    ANESHANSLEY, DJ
    [J]. ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA, 1983, 76 (02) : 295 - 298
  • [10] The climbing organ of an insect, Rhodnius prolixus (Hemiptera; Reduviid ae).
    Gillett, JD
    Wigglesworth, VB
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-CONTAINING PAPERS OF A BIOLOGICAL CHARACTER, 1932, 111 (772) : 364 - 376