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Sm<3+>/Yb<3+> codoped inorganic nano material as well as preparation method and application thereof

A technology of inorganic nanomaterials and tetragonal crystal system, applied in the direction of luminescent materials, chemical instruments and methods, medical preparations containing active ingredients, etc., can solve the problems of large pollution in the preparation process, low biocompatibility, complicated preparation, etc. Achieve the effect of simple preparation, high biocompatibility and controllability

Inactive Publication Date: 2016-01-20
DALIAN MARITIME UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the photothermal conversion materials currently used in photothermal therapy, such as carbon nanotubes, gold nanostructures, and semiconductor quantum dots, have problems such as low biocompatibility, complicated preparation, and large pollution in the preparation process.

Method used

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  • Sm&lt;3+&gt;/Yb&lt;3+&gt; codoped inorganic nano material as well as preparation method and application thereof
  • Sm&lt;3+&gt;/Yb&lt;3+&gt; codoped inorganic nano material as well as preparation method and application thereof

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Embodiment 1

[0030] A Sm 3+ / Yb 3+ Codoped NaY(WO 4 ) 2 A preparation method for nanoparticles, the preparation method comprising the steps of:

[0031] Precursor preparation: 0.1mmolSm(NO 3 ) 3 ·6H 2 O, 0.2mmolYb(NO 3 ) 3 ·6H 2 O and 1.7mmolY (NO 3 ) 3 ·6H 2 O was dissolved in 3mL distilled water to obtain a rare earth nitrate solution; 2mmolNa 3 Cit·2H 2 O was dissolved in 4 mL of distilled water to give Na 3 Cit·2H 2 O solution; 4mmolNa 2 WO 4 2H 2 O was dissolved in 4 mL of distilled water to give Na 2 WO 4 2H 2 O solution; the rare earth nitrate solution was added dropwise to Na at a rate of 5ml / min 3 Cit·2H 2O solution, stirred at 100r / min for 10min, then added dropwise Na at a rate of 5ml / min 2 WO 4 2H 2 O solution, stirred at 100r / min for 15min to obtain a white colloidal precursor;

[0032] Microwave-assisted hydrothermal reaction: Add the white colloidal precursor to the quartz glass reaction kettle, then put the quartz glass reaction kettle into the Bio...

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Abstract

The invention relates to a Sm<3+> / Yb<3+> codoped inorganic nano material as well as a preparation method and application thereof, belonging to the technical field of photothermal conversion. The Sm<3+> / Yb<3+> codoped inorganic nano material has a general formula as follows: NaY(1-x-y)SmxYby(WO4)2, wherein x is 0.01-0.1 and y is 0.1-0.3. The Sm<3+> / Yb<3+> codoped inorganic nano material is of a tetragonal system structure. The Sm<3+> / Yb<3+> codoped inorganic nano material has the beneficial effects that by changing the exciting power of a pump light source and the doping concentrations of ions Sm<3+> and Yb<3+>, the photothermal conversion efficiency is improved, and the controllability of heat conversion is realized.

Description

technical field [0001] The present invention relates to a Sm 3+ / Yb 3+ The co-doped inorganic nanometer material and its preparation method and application belong to the technical field of photothermal conversion. Background technique [0002] The process of conversion and luminescence of rare earth doped luminescent materials includes not only the process of light-light conversion, but also the process of light-to-heat conversion. The light-to-light conversion process and the light-to-heat conversion process are interdependent and compete with each other. The current research hotspot is the light-to-light conversion process. The light-to-heat conversion process of rare earth-doped inorganic materials has been neglected and underestimated, and has not been reported in the fields of biological photothermal therapy. [0003] Photothermal therapy refers to the use of heat to cause irreversible fatal damage to specific cancer cells, and kill them at 40-45°C without damaging t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78A61K41/00A61P35/00
Inventor 郑辉陈宝玖李香萍张金苏徐赛
Owner DALIAN MARITIME UNIVERSITY
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