国内精品国产三级国产在线专_欧美日韩在线播放一区二区_成人xxxx视频_欧美激情视频一区_色女人综合av_久久久亚洲影院_久久久久久九九_成人免费网站在线_日韩美女毛茸茸_狠狠干一区二区

  ˮ푑��Π�ӛ���߷�����һ���ˮ�܉���R�r�Π�֏�����ʼ�Π�����ܲ��ϡ�Ŀǰ����ԓ��Ϟ��˹��ϳ��ͣ����s��Ȼ���׳ɷֵĹ����Ｐ����Ȼ���ײ����ͣ��B���ë���������������@ˮ푑�����������Ȼ��V�����ڵ��ͽǵ����w�S������ˮ푑��Π�ӛ�����Լ��C���о�����sδ�Ј�����@Ҳ���������ܲ����о��ߵĘO���dȤ��
  ���������W����ɏ�����n�}�Mͨ�^������͵Ą���ë�l���ͼ����w�S���ϣ��M��ˮ푑��Π�ӛ���о����l�Fˮ���ӿ���ʹ�w�S��Û���R�r���κ��Π�؏ͣ��Π�̶��ʺͻ؏��ʣ����ë���քe�_��95%��85%���ϡ�

���Da: ˮ��ʹ�ɵ�ë�l�l����Û���Db��ë�l��ˮ푑��Π�ӛ��Ч�����Dc: �R�r���ε�ë�l��ˮ���S�r�g�ӑB�؏͵�˲�g��Ƭ��

  �о��߽�����ˮ��ë�l�w�S��׃�^���еĻ؏̈́����W���}�l�F��ˮ����ʹ������w�S�Π�؏����ʼӿ죻���^����ë�l�w�S����u׃�ɵ��^���У��w�S��ģ����u��߶��p��ģ����u���͡�ë�l�w�S�ڄӑB���W��������аl�F����͸����^�̿���ʹ��ë�lģ����������׃�����w�F�˿������@�����Π�ӛ��Ч����

���Da: ����ë�w�S�ڸ���͝񝙭h���ЄӑB�؏����ʵı��^���Db��c��DMA�œy��ë�w�S����ģ���͓p��ϵ���ڸɝ��B�µ��D׃��

  �о����S��ë�l�w�S��ˮ푑��Π�ӛ�������h���M���˸߷���ģ���й��c��Net-point�����_�P��switch���ı���������XRD���������V�����@ʾë�l�Ȳ��Y���Ͷ����I���Sˮ푑��Π�ӛ���^�̰l��׃������ë�l�Ȳ����I�t�ڸ����A��չʾ�����_�P�����ã��f��ë�l�w�S�l��һ��Ԛ��I���_�P�ġ��Y���Ͷ����I���p���c��ˮ푑��Π�ӛ����Ȼ�߷��Ӿۺ�����c�ķNͺ����Ķ��ٛQ����ë�l�w�S�Π�؏������Ĵ�С�������I�Ķ��لt�Q����ë�l�w�S�R�r�Π�̶������ď�����

  �p���c���_�P��ë�l�w�Sӛ��ģ�ͽ�ʾ����Ȼ�絰���w�S��ͬ�Π�ӛ�������ęC�������S����һ�ϳ��w�S��ͬ�Π�ӛ�������ͷ����_�l�����ܵĺϳ��w�S�ṩ�˽��b��ָ�����x���@һ�о������_�l�t�����ܲ��Ϻ���еָ���˷������磬���ò�ͬ�Π�ӛ���������w�S�Ƃ�ijC����еͨ�^�𲽳C�΁�����C���^���нo���ߎ�����ʹ�࣬Ŀǰ�п�Ժ�����������t���Ƽ��Ȇ�λ�͹�˾�ь�����о��đ��ÔUչ���_�˝����dȤ��

  ժҪ���f��

  Animal Hairs as Water-stimulated Shape Memory Materials: Mechanism and Structural Networks in Molecular Assemblies

  Scientific Reports

  DOI: 10.1038/srep26393

  Published: 27 May 2016

  Animal hairs consisting of ��-keratin biopolymers existing broadly in nature may be responsive to water for recovery to the innate shape from their fixed deformation, thus possess smart behavior, namely shape memory effect (SME). In this article, three typical animal hair fibers were first time investigated for their water-stimulated SME, and therefrom to identify the corresponding net-points and switches in their molecular and morphological structures. Experimentally, the SME manifested a good stability of high shape fixation ratio and reasonable recovery rate after many cycles of deformation programming under water stimulation. The effects of hydration on hair lateral size, recovery kinetics, dynamic mechanical behaviors and structural components (crystal, disulfide and hydrogen bonds) were then systematically studied. SME mechanisms were explored based on the variations of structural components in molecular assemblies of such smart fibers. A hybrid structural network model with single-switch and twin-net-points was thereafter proposed to interpret the water-stimulated shape memory mechanism of animal hairs. This original work is expected to provide inspiration for exploring other natural materials to reveal their smart functions and natural laws in animals including human as well as making more remarkable synthetic smart materials.