Biocompatible and flexible graphene oxide/upconversion nanoparticle hybrid film for optical pH sensing
文献类型：期刊论文
| 作者 | Yan L(晏亮) ; Chang YN(常亚男); Yin WY(尹文艳); Yan, L; Chang, YN; Yin, WY; Liu, XD; Xiao, DB; Xing, GM; Zhao, LN
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| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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| 出版日期 | 2014 |
| 卷号 | 16期号:4页码:1576-1582 |
| 英文摘要 | Free-standing optical hybrid film which is composed of positively-charged polyethylenimine-coated NaYF4: Yb, Er nanoparticles and negatively-charged graphene oxide (GO) has been developed to measure pH based on the pH-dependent luminescence quenching effect caused by GO. The isothermal titration calorimetry analyses indicate that the interaction between GO and NaYF4: Yb, Er nanoparticles becomes stronger with increasing pH, leading to a more significant fluorescence quenching of NaYF4: Yb, Er nanoparticles at high pH values. The excellent mechanical properties of the hybrid film endow the thin-film pH sensor with better repeatability and higher stability during the measurements. Quantitatively, the upconversion luminescence intensity of the hybrid film exhibits a linear trend over the pH range of 5.00-8.00. Because of excitation with a 980 nm laser, as expected, the hybrid film sensor is also sensitive to the urine measurements with reduced background absorption. In addition to its good biocompatibility, our free-standing hybrid film sensor would be a promising candidate for biological, medical, and pharmaceutical applications. |
| 学科主题 | Chemistry; Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000328884900033 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225247]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Yan L,Chang YN,Yin WY,et al. Biocompatible and flexible graphene oxide/upconversion nanoparticle hybrid film for optical pH sensing[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2014,16(4):1576-1582. |
| APA | 晏亮.,常亚男.,尹文艳.,Yan, L.,Chang, YN.,...&赵宇亮.(2014).Biocompatible and flexible graphene oxide/upconversion nanoparticle hybrid film for optical pH sensing.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,16(4),1576-1582. |
| MLA | 晏亮,et al."Biocompatible and flexible graphene oxide/upconversion nanoparticle hybrid film for optical pH sensing".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 16.4(2014):1576-1582. |
入库方式： OAI收割
来源：高能物理研究所
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