Volume 7 Issue 4
Aug.  2014
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LIU Dong-xu, XIA Hong, SUN Yun-lu, CHEN Qi-dai, DONG Wen-fei. Femtosecond laser direct writing bio-gel template for in situ synthesis of nanoparticles[J]. Chinese Optics, 2014, 7(4): 608-615. doi: 10.3788/CO.20140704.0608
Citation: LIU Dong-xu, XIA Hong, SUN Yun-lu, CHEN Qi-dai, DONG Wen-fei. Femtosecond laser direct writing bio-gel template for in situ synthesis of nanoparticles[J]. Chinese Optics, 2014, 7(4): 608-615. doi: 10.3788/CO.20140704.0608

Femtosecond laser direct writing bio-gel template for in situ synthesis of nanoparticles

doi: 10.3788/CO.20140704.0608
  • Received Date: 21 Feb 2014
  • Rev Recd Date: 23 Apr 2014
  • Publish Date: 25 Jul 2014
  • In order to fabricate polymer microstructures with controllable complex shapes and specific chemical properties, we develop a new method using femtosecond laser direct writing biological gel template to synthesis nanoparticles in-situ. First, we use femtosecond laser direct writing complex three-dimensional(3D) bio gel template with COOH groups, followed by treatment with NaOH solution to change COOH groups into COO-. Then, we put the template in metal salt solution, and make the metal particles chelate with the COO- groups to grow into nanoparticles. Through different cycles of this step, the sizes and content of the nanoparticles in the template can be controlled. The experimental results show that the bio gel templates fabricated by this method have sub 100 nm resolution and 10 m order size, and the content of the nanoparticles reaches up as high as 9%. This method is simple and efficient, which has a good application prospect.

     

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