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°®ÓëÓêÏÂ: ½ð±Ò+1 2014-02-21 06:32:59
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Bioinspired Water-Enhanced Mechanical Gradient Nanocomposite Films ·ÂÉú Ë®ÔöÇ¿»úеÐÔÄÜÌÝ¶È µÄÄÉÃ׸´ºÏ±¡Ä¤ Ó¢ÓïÔÎļûÏ£¬Inspired by the water-enhanced mechanical gradient character of the squid beak£¬Ö¸ÕâÖÖ²ÄÁÏÊÇÄ£·ÂöÏÓãà¹×´×죬öÏÓãà¹×´×ì¿ØÖÆà¹×´×ìµÄ¼áÓ²³Ì¶ÈÊÇͨ¹ý¼¸¶¡ÖÊ¡¢Ë®¡¢¸»º¬×é°±ËáÕâÖÖ°±»ùËáµÄµ°°×Öʼ°Ò»ÖÖ½Ð×öDopaµÄ»¯ºÏÎïµÄ±ÈÀý±ä»¯À´ÊµÏֵġ£Ò²¾ÍÊÇͨ¹ý¸Ä±äË®µÄº¬Á¿À´´ïµ½Ó²¶ÈµÄ¸Ä±ä¡£ÕâÖÖÄÉÃ׸´ºÏ±¡Ä¤Ò²ÊÇͨ¹ý²»Í¬²¿Î»µÄË®º¬Á¿²»Í¬£¬Ê¹²ÄÁϵÄÓ²¶È²»Í¬¡£ Water-Enhanced Ϊ¿ØÖÆË®º¬Á¿Ê¹»úеǿ¶ÈÔöÇ¿µÄÒâ˼¡£ Inspired by the water-enhanced mechanical gradient character of the squid beak, we herein report a nanocomposite that mimics both the architecture and properties of this interesting natural material. Similar to the squid beak, we have developed nanocomposites where the degree of cross-linking is controlled along the length of the film. In this study, we utilized tunicate cellulose nanocrystals as the nanofiller that are functionalized with allyl moieties. öÏÓãÊÇÈçºÎÓÃÆä¼âÀûÈçµ¶µÄà¹×´×ìÀ´ÉË²ÐÆäÁÔÎﵫÓÖ²»Ëðº¦Æäà¹×´×ìËùǶÈëµÄ¼¡Èâ×éÖ¯¡£öÏÓãà¹×´×ìËùÃæÁÙµÄÉè¼ÆÉϵÄÄÑÌâÓëÎÞ±úµ¶×ÓÏàͬ£¬ÒòΪÈËÃǺÜÄÑÔÚ²»¸îÉË×Ô¼ºµÄÇé¿öÏÂÀ´Ê¹ÓÃÎÞ±úµÄµ¶×Ó¡£ºé±¤¾ÞöϵÄà¹×´×ìÊÇÒÑÖªµÄÍêȫΪÓлú²ÄÁÏ×é³ÉµÄ×î¼áÓ²µÄÎïÖÊÖ®Ò»¡£ÓøÃà¹×´×ìÀ´»÷´òÁÔÎï»á½«Ï൱¾Þ´óµÄÁ¦Á¿´«µ¼µ½Æä×ÔÉíάϵà¹×´×ìµÄÈí×éÖ¯ÉÏ¡£¸ù¾ÝAli Miserez¼°ÆäͬʵÄÅû¶£¬¸ÃöÏÓãµÄà¹×´×ìÖ®ËùÒÔÄܹ»Ó¦¸¶ÕâЩ×÷ÓÃÁ¦ÊÇÒòΪÆäÇиî¶ËËäÈ»¼È¼áÇÒÓ²£¬µ«ÊÇËüÔÚÔ½¿¿½üà¹×´×츽×ŵÄÈáÈí¼¡Èâ×é֯ʱ£¬±äµÃÔ½À´Ô½ÈáÈíÇÒÆä¿ÉÍäÇúÐÔÒ²Ô½À´Ô½´ó¡£Ñо¿ÈËÔ±·Ç³£·ÑÁ¦µØ½«à¹×´×ìµÄÿһ½Ú¶ÎµÄÌØ¶¨»¯Ñ§×é³É½øÐÐÁ˲ⶨ£¬²¢ÔÚÿһµãÉϽ«ÆäÓëà¹×´×ìµÄÁ¦Ñ§ÐÔÖʽøÐÐÅä¶Ô¡£¿ØÖÆà¹×´×ìµÄ¼áÓ²³Ì¶ÈÊÇͨ¹ý¼¸¶¡ÖÊ¡¢Ë®¡¢¸»º¬×é°±ËáÕâÖÖ°±»ùËáµÄµ°°×Öʼ°Ò»ÖÖ½Ð×öDopaµÄ»¯ºÏÎïµÄ±ÈÀý±ä»¯À´ÊµÏֵġ£ÔÚһƪÏà¹ØÎÄÕÂÖУ¬Phillip Messersmith̽ÌÖÁËDopaÔÚÆäËûÉúÎï½á¹¹ÖеÄ×÷Óã¬ÒÔ¼°Ñо¿ÈËԱΪʲôÓÐÐËȤÔÚÈ˹¤ºÏ³ÉµÄ²ÄÁÏÖÐʹÓÃÄ£ÄâÉúÎï²ÄÁÏÐÔÖʵϝºÏÎï¡£ |

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