Hydrothermal Synthesis and Bioconjugation of Water-soluble &beta;-NaY(Gd)F4:Yb3+/Er3+ Nanorods

ZHAO Xin; SUN Zhen-gang; ZHANG Wei; HUA Rui-nian

doi:10.3788/fgxb20153602.0163

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Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F₄:Yb³⁺/Er³⁺ Nanorods

更新时间：2020-08-12

- Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F₄:Yb³⁺/Er³⁺ Nanorods
- Chinese Journal of Luminescence Vol. 36, Issue 2, Pages: 163-168(2015)
- 作者机构：
  
  1. 辽宁师范大学化学化工学院,辽宁大连,116029
  2. 大连民族学院生命科学学院,辽宁大连,116600
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153602.0163
  CLC： O482.31
- Received：11 September 2014，
  
  Revised：24 December 2014，
  
  Published Online：12 December 2014，
  
  Published：03 February 2015
- 稿件说明：
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肇欣, 孙振刚, 张伟等. 水溶性β-NaY(Gd)F4:Yb3+/Er3+纳米棒的水热合成及生物偶联[J]. 发光学报, 2015,36(2): 163-168

ZHAO Xin, SUN Zhen-gang, ZHANG Wei etc. Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F4:Yb3+/Er3+ Nanorods[J]. Chinese Journal of Luminescence, 2015,36(2): 163-168
肇欣, 孙振刚, 张伟等. 水溶性β-NaY(Gd)F4:Yb3+/Er3+纳米棒的水热合成及生物偶联[J]. 发光学报, 2015,36(2): 163-168 DOI： 10.3788/fgxb20153602.0163.

ZHAO Xin, SUN Zhen-gang, ZHANG Wei etc. Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F4:Yb3+/Er3+ Nanorods[J]. Chinese Journal of Luminescence, 2015,36(2): 163-168 DOI： 10.3788/fgxb20153602.0163.

摘要

以聚乙烯亚胺(PEI)为表面活性剂

采用水热合成法

制得了表面氨基修饰的水溶性-NaY(Gd)F

:Yb

/Er

纳米棒

并对-NaY(Gd)F

:Yb

/Er

上转换纳米棒的制备方法、条件等进行了考察.结果表明

当Gd

的引入摩尔分数为40%时

200 ℃下反应8 h即可获得纯-NaY(Gd)F

:Yb

/Er

纳米棒.利用X射线粉末衍射仪(XRD)、扫描电子显微镜 (SEM)、透射电子显微镜(TEM)、荧光光谱(PL)对样品的结构、形貌及光谱特性进行了表征.结构和形貌分析结果表明

制得的样品为单相-NaY(Gd)F

:Yb

/Er

纳米棒

纳米棒的截面粒径约为40 nm

平均长度约为210 nm.在980 nm波长激发下

样品的上转换发光光谱中出现了4个发射中心位于407

529

546

660 nm的发射带

分别对应于Er

离子的

9/2

15/2

、

11/2

15/2

、

3/2

15/2

和

9/2

15/2

跃迁.采用戊二醛法

使-NaY(Gd)F

:Yb

/Er

上转换纳米棒表面的氨基与牛血清蛋白(BSA)分子中的氨基成功偶连在一起.利用紫外光谱分析(UV)和考马斯亮蓝法

对二者的偶联进行了证明.

Abstract

The amino modified -NaY(Gd)F

:Yb

/Er

nanorods were synthesized by hydrothermal synthesis process using polyethyleneimine (PEI) as a surfactant. The preparation method and conditions of -NaY(Gd)F

:Yb

/Er

upconversion nanorods were also studied. The pure -NaY(Gd)F

:Yb

/Er

upconversion nanorods can be obtained at 200 ℃ for 8 h with Gd

mole fraction of 40%. The crystal structure

morphology and luminescent properties of final products were characterized by X-ray diffraction (XRD)

field emission scanning electron microscopy (SEM)

transmission electron microscopy (TEM) and fluorescence spectra (PL)

respectively. The as-synthesized samples presented a pure phase -NaY(Gd)F

:Yb

/Er

nanorods with average diameter of 40 nm and average length of 210 nm. Under 980 nm excitation

four upconversion emissions centered at 407

529

546

660 nm were observed

corresponding to

15/2

11/2

15/2

3/2

15/2

and

9/2

15/2

transitions of Er

respectively. The amino groups on the surface of -NaY(Gd)F

:Yb

/Er

upconversion nanorods can be coupled with bovine serum albumin (BSA)

via

a glutaraldehyde method

and the coupling was confirmed by UV spectroscopy and Coomassie brilliant blue method at room temperature.

关键词

Keywords

references

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⁰

Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F4:Yb3+/Er3+ Nanorods

DOI：10.3788/fgxb20153602.0163

摘要

Abstract

关键词

Keywords

references

Hydrothermal Synthesis and Bioconjugation of Water-soluble β-NaY(Gd)F₄:Yb³⁺/Er³⁺ Nanorods