Near-infrared light and temperature responsive nanocomposite hydrogel

ZHANG Ning; SHAN Guorong

doi:10.11949/j.issn.0438-1157.20180581

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Near-infrared light and temperature responsive nanocomposite hydrogel

更新时间：2025-12-10

- Near-infrared light and temperature responsive nanocomposite hydrogel
- CIESC Journal Issue 11, Pages: 4862-4868(2018)
- 作者机构：
  
  化学工程联合国家重点实验室, 浙江大学化学工程与生物工程学院,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180581
  CLC： Q317.9
- Online First：05 November 2018，
  
  Published：05 November 2018
- 稿件说明：
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ZHANG Ning, SHAN Guorong. Near-infrared light and temperature responsive nanocomposite hydrogel[J]. CIESC Journal, 2018, (11): 4862-4868.
DOI：

ZHANG Ning, SHAN Guorong. Near-infrared light and temperature responsive nanocomposite hydrogel[J]. CIESC Journal, 2018, (11): 4862-4868. DOI： 10.11949/j.issn.0438-1157.20180581.

摘要

设计合成了一种包含氧化石墨烯（GO）片层、聚（N-异丙基丙烯酰胺）（PNIPAM）微凝胶球体和PNIPAM链段的复合结构水凝胶。通过控制聚合时间得到负载双键且粒径不同的PNIPAM微凝胶，将其作为交联点与N-异丙基丙烯酰胺（NIPAM）聚合，GO作为纳米填料掺入水凝胶体系，GO片层上的含氧基团与NIPAM上的胺基产生氢键物理交联。此方法制备的复合水凝胶同时具有温度敏感和近红外光敏感特性，通过改变GO浓度、微凝胶的合成时间、NIPAM浓度等条件，水凝胶的光敏感性和温度敏感性得到提升。相比于传统PNIPAM水凝胶，此种复合水凝胶能够对光响应，实现非接触式控制形变，且响应速率快、响应程度高，可应用于光控开关等领域。

Abstract

A composite structural hydrogel comprising a graphene oxide (GO) sheet

a poly(N-isopropylacrylamide) (PNIPAM) microgel sphere and a PNIPAM segment was designed and synthesized. Combination of the GO sheets and thermoresponsive PNIPAM microsphere polymeric networks provides the hydrogels with an NIR responsive property. The oxidized groups of GO nanosheets enable the formation of a hydrogen bond interaction with the amide groups of PNIPAM chains. PNIPAM microspheres in hydrogel improve the response rate and responsive swelling ratio. By changing the concentration of GO

synthesis time of the microsphere

concentration of N-isopropylacrylamide (NIPAM) and the propotion of microspheres and GO

the light and thermal sensitivity of the hydrogel can be enhanced. Compared to traditional PNIPAM hydrogel

such hydrogels are capable of responsing to light

achieving non-contact controlled deformation with high response speed and high degree of response

which may expand the scope of hydrogel applications

such as NIR-controllled switch

and provide enhanced performance.

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