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Application of Fe3O4 (at) SiO2 (at) DMSA magnetic nano material in adsorption removal of lead ions

A magnetic nano and lead ion technology, applied in the direction of attracting devices, alkali metal oxides/hydroxides, and other chemical processes, can solve the problems of increasing the burden on patients and high costs

Pending Publication Date: 2022-05-27
海口市人民医院
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  • Description
  • Claims
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Problems solved by technology

The key to hemoperfusion is the adsorbent. The adsorbents currently used mainly rely on imports, which are costly and greatly increase the burden on patients.

Method used

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  • Application of Fe3O4 (at) SiO2 (at) DMSA magnetic nano material in adsorption removal of lead ions
  • Application of Fe3O4 (at) SiO2 (at) DMSA magnetic nano material in adsorption removal of lead ions
  • Application of Fe3O4 (at) SiO2 (at) DMSA magnetic nano material in adsorption removal of lead ions

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Experimental program
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Embodiment

[0021] Synthesis of Fe3O4@SiO2 nanocomposites: 100 mg of as-prepared hydrophilic Fe3O4 nanoparticles were ultrasonically suspended in ethanol (150 ml) for 40 min. Aqueous ammonia (3 ml) and deionized water (47 ml) were sequentially added to the suspension, and the mixture (ethanol-water-aqueous ammonia solution, 75.0 / 23.5 / 1.5 v / v / v%) was sonicated for 40 minutes. Then, at room temperature, 0.6 ml of tetraethoxysilane was added slowly with gentle continuous stirring for a further 8 hours. The silica-coated nanocomposites were isolated by magnetic separation and washed several times with ethanol. The final product was collected and dried under vacuum at 60°C.

[0022] Thiol modified Fe3O4@SiO2@DMSA: 100 mg Fe 3 O 4 @SiO 2 The nanoparticles were ultrasonically dispersed in 10 mL of toluene for 30 minutes, then 10 mL of dimethyl sulfoxide and 250 mg of dimethyl sulfoxide were added to the solution. The mixture was stirred for 12 h. The final product was collected by magnetic...

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Abstract

The invention discloses an application of a Fe3O4 (at) SiO2 (at) DMSA magnetic nano-material in adsorption removal of lead ions, and the Fe3O4 (at) SiO2 (at) DMSA magnetic nano-material is low in cytotoxicity, good in blood compatibility, free of obvious immunosuppression or enhancement, free of obvious visceral toxicity, and capable of being applied to adsorption removal of lead ions. After adsorption, the physical and chemical properties are stable, the in-vitro Pb adsorption rate is high, and the effectiveness and feasibility of the adsorbent as a clinical blood perfusion adsorbent are shown.

Description

technical field [0001] The present invention relates to a kind of Fe 3 O 4 @SiO 2 The application of @DMSA magnetic nanomaterials in the adsorption and removal of heavy metal lead ions, also involving the Fe 3 O 4 @SiO 2 Application of @DMSA magnetic nanomaterials as perfusion adsorbents. Background technique [0002] Lead is a widely used industrial raw material in my country and is not degradable. Lead pollution exists in the production and living environment for a long time. After entering the human body, it accumulates in tissues and organs and produces toxicity, causing anemia, kidney damage, cardiovascular damage and abnormal intellectual behavior. , a serious threat to human health. [0003] At present, the drug treatment of Pb poisoning is mainly based on complexing agents (such as EDTA, DMSA), but nephrotoxicity and renal excretion limit its use. Adsorbents have made great progress in the study of lead removal. Adsorbents can not only reduce the lead content i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30A61M1/36
CPCB01J20/103B01J20/08B01J20/28009B01J20/22B01J20/28021A61M1/3679
Inventor 向杨周艳玲
Owner 海口市人民医院
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