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Copper sulfide superstructure and its application in improving near infrared thermal conversion efficiency

A superstructure, copper sulfide technology, applied in the direction of copper sulfide, phototherapy, etc., to achieve the effect of cost price, good chemical stability, and broad application prospects

Inactive Publication Date: 2011-10-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There has been no report on the use of CuS superstructures for near-infrared photothermal conversion

Method used

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  • Copper sulfide superstructure and its application in improving near infrared thermal conversion efficiency
  • Copper sulfide superstructure and its application in improving near infrared thermal conversion efficiency
  • Copper sulfide superstructure and its application in improving near infrared thermal conversion efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 2g PVP to 10mL deionized water, then add 1mmol CuCl under stirring 2 2H 2 O, a mixed solution was obtained;

[0027] (2) Weigh 3mmol of Na 2 S, dissolved in 10mL deionized water, then add the above mixed solution under stirring, continue to stir for half an hour, then transfer to the hydrothermal reaction kettle, the reaction time is 24 hours, the temperature is 240 ° C, after the reaction is complete, centrifuge , to obtain the CuS superstructure; the superstructure is composed of CuS flake nano-units arranged in an orderly manner, with a particle size of 2nm.

[0028] (3) The copper sulfide superstructure was redispersed in water at a concentration of 0.25 mg / mL. Using a 1W 980nm laser, the photothermal conversion performance was tested, and the temperature was increased by 17.5 degrees Celsius.

Embodiment 2

[0030] (1) Add 2g PVP to 100mL deionized water, then add 1mmol CuCl under stirring 2 2H 2 O, a mixed solution was obtained;

[0031] (2) Weigh 1mmol of Na 2 S, dissolved in 100mL deionized water, then added the above mixed solution under stirring, and then transferred to the hydrothermal reaction kettle, the reaction time was 32 hours, the temperature was 180 ° C, after the reaction was complete, centrifuged to obtain the CuS superstructure , the superstructure is composed of ordered CuS flake nano-units with a particle size of 100nm.

[0032] (3) The copper sulfide superstructure was redispersed in phosphate buffered saline PBS at a concentration of 0.25mg / mL, and its photothermal conversion performance was tested using a 1W980nm laser, and the temperature was increased by 16 degrees Celsius.

Embodiment 3

[0034] (1) Add 4g PVP to 10mL deionized water, then add 0.5mmol CuCl under stirring 2 2H 2 O, a mixed solution was obtained;

[0035] (2) Weigh 2.5mmol of Na 2 S, dissolved in 10mL deionized water, then add the above mixed solution under stirring, continue to stir for half an hour, then transfer to a hydrothermal reaction kettle, the reaction time is 32 hours, the temperature is 180 ° C, after the reaction is complete, centrifuge , to obtain the CuS superstructure, which is composed of CuS flake nano-units arranged in an orderly manner, with a particle size of 800nm.

[0036] (3) The copper sulfide superstructure was redispersed in PBS at a concentration of 0.25 mg / mL, and its photothermal conversion performance was tested using a 1W 808nm laser, and the temperature was increased by 14 degrees Celsius.

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PUM

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Abstract

The invention relates to a copper sulfide (CuS) superstructure, and its application in improving near infrared thermal conversion efficiency. The CuS superstructure is composed by orderly arranged CuS sheet-shaped nano-units with particle sizes of 1 to 2000nm. The CuS superstructure can be well dispersed in water or phosphate buffer solution. The CuS superstructure is applied in near infrared thermotherapy. The CuS superstructure has advantages of simple preparation method, low cost, and good stability. With an internal reflection effect, the CuS superstructure can effectively adsorb near infrared, such that the utilance of near infrared is improved. Therefore, the CuS superstructure can be applied in the preparation of materials for improving near infrared thermal conversion efficiency, and has good application prospect in the field of near infrared thermotherapy.

Description

technical field [0001] The invention belongs to the field of copper sulfide and its application, in particular to a copper sulfide superstructure and its application in improving near-infrared light-to-heat conversion efficiency. Background technique [0002] Hyperthermia technology has the characteristics of minimally invasive, small radiation and easy operation, so it is widely used. Among the many hyperthermia technologies, near-infrared hyperthermia has attracted more attention. Near-infrared hyperthermia is a technology that converts near-infrared light into heat energy for treatment. It mainly uses near-infrared light to have excellent characteristics such as deep tissue penetration ability and small tissue damage. At present, the most studied near-infrared photothermal conversion materials are mainly gold nanostructure materials, such as gold nanorods, nanospheres, nanocages, and nanohollow structures. But gold nanostructured materials have many inherent drawbacks. ...

Claims

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Application Information

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IPC IPC(8): C01G3/12A61N5/06
Inventor 陈志钢田启威胡俊青唐明华胡向华彭彦玲蒋扉然
Owner DONGHUA UNIV
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