Assembly of highly ordered 2D arrays of silver-PNIPAM hybrid microgels

Assembly of highly ordered 2D arrays of silver-PNIPAM hybrid microgels
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银-PNIPAM混合微凝胶高度有序二维阵列的组装

DOI:
10.1007/s10118-017-1962-1
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发表时间:
2017-05
影响因子:
4.3
通讯作者:
Zhang Yong-jun
Zhang Yong-jun
中科院分区:
化学2区
文献类型:
--
作者:
Weng Jun-ying;Tang Zhuo;Guan Ying;Zhu X. X.;Zhang Yong-jun

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提出了一种合成高度有序的Ag-PNIPAM杂化微凝胶二维阵列的方法。通过将PNIPAM微凝胶分散在电荷可逆基底上,制备了高度有序的PNIPAM微凝胶二维阵列。微凝胶球自组装成3D胶体晶体,并且由于基底的自发电荷反转,第一个111平面原位固定在基底上,留下高质量的PNIPAM微凝胶2D阵列。然后通过将Ag+离子引入到微凝胶球中并用硼氢化钠还原,在微凝胶球内原位合成Ag纳米颗粒。所得到的2D阵列是高度有序的。阵列中的颗粒间距离可以被调谐。此外,该方法允许合成大尺寸阵列和使用非平面衬底。
A strategy was developed for the synthesis of highly ordered 2D arrays of Ag-PNIPAM hybrid microgel. The highly ordered 2D arrays of PNIPAM microgel were prepared by dispersing PNIPAM microgel on a charge-reversible substrate. The microgel spheres self-assembled into a 3D colloidal crystal, and the first 111 plane was fixedin situonto the substrate as a result of spontaneous charge reversal of the substrate, leaving a high-quality 2D array of PNIPAM microgel. Ag nanoparticles were then synthesizedin situinside the microgel spheres by introduction of Ag+ions into the microgel spheres and reduction with sodium borohydride. The resulting 2D arrays are highly ordered. The inter-particle distance in the array can be tuned. In addition, the method allows the synthesis of large size arrays and the use of nonplanar substrate.
DOI: 10.1103/physreve.71.016615
发表时间: 2005-01-01
期刊: PHYSICAL REVIEW E
影响因子: 2.4
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