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Carbon quantum dot nano-emulsion and application of same as disinfectant

A carbon quantum dot and nanoemulsion technology, applied in the field of nanomaterial preparation, can solve problems such as no reports, and achieve the effects of excellent bactericidal and bacteriostatic effect, comparable bactericidal effect and simple preparation process.

Active Publication Date: 2019-06-07
云南伦扬科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are reports on the antibacterial activity of lavender essential oil against Candida albicans in vitro, but there is no report on the preparation of nanoemulsions with quantum dots and plant essential oils as disinfectants

Method used

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  • Carbon quantum dot nano-emulsion and application of same as disinfectant
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  • Carbon quantum dot nano-emulsion and application of same as disinfectant

Examples

Experimental program
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Effect test

Embodiment 1

[0023] 1. Preparation of deep eutectic solvent: Mix choline chloride, lactic acid and glycine in a molar ratio of 1:1:1, heat to 70°C to form a uniform transparent solution, that is, form a deep eutectic solvent;

[0024] 2. Preparation of carbon quantum dots: Weigh 4.0 kg of the deep eutectic solvent prepared in step (1) and add it to 100 L of ultrapure water, sonicate for 25 minutes, transfer to a polytetrafluoroethylene reactor, and heat at 200°C for 8 hours. After natural cooling, first filter with a filter membrane with a pore size of 0.22 μm, and then perform dialysis treatment with a dialysis bag with a molecular weight cut-off of 3000D for 24 hours to obtain water-soluble chlorine nitrogen-doped fluorescent carbon quantum dots.

[0025] 3. Preparation of nanoemulsion: Mix 0.50kg oregano oil, 10.00kg carbon quantum dots, and 12.00kg Tween-60 to prepare a mixed solution, and emulsify with a high-pressure homogenizer at room temperature for 20 minutes to obtain a nanoemuls...

Embodiment 2

[0036] 1. Preparation of deep eutectic solvent: Mix choline chloride, lactic acid and glycine in a molar ratio of 1:2:2, heat to 75°C to form a uniform transparent solution, that is, form a deep eutectic solvent;

[0037] 2. Preparation of carbon quantum dots: Weigh 5.0 kg of the deep eutectic solvent prepared in step (1) into 100 L of ultrapure water, ultrasonicate for 20 min, transfer to a polytetrafluoroethylene reactor, and heat at 200°C for 9 h, after natural cooling, first filter with a filter membrane with a pore size of 0.22 μm, and then perform dialysis treatment with a dialysis bag with a molecular weight cut-off of 3000D for 24 hours to obtain water-soluble chlorine nitrogen-doped fluorescent carbon quantum dots.

[0038] 3. Preparation of nanoemulsion: Mix 0.45kg of clove basil oil, 9.00kg of carbon quantum dots, and 13.05kg of Tween-80 to prepare a mixed solution, and emulsify with a high-pressure homogenizer for 35 minutes at room temperature to obtain a nanoemuls...

Embodiment 3

[0043] 1. Preparation of deep eutectic solvent: Mix choline chloride, lactic acid and glycine in a molar ratio of 1:1:2, heat to 80°C to form a uniform transparent solution, that is, form a deep eutectic solvent;

[0044]2. Preparation of carbon quantum dots: Weigh 5.5kg of the deep eutectic solvent prepared in step (1) into 100 L of ultrapure water, ultrasonicate for 30 minutes, transfer to a polytetrafluoroethylene reactor, and heat at 200°C for 11 hours. After natural cooling, first filter with a filter membrane with a pore size of 0.22 μm, and then perform dialysis treatment with a dialysis bag with a molecular weight cut-off of 3000D for 24 hours to obtain water-soluble chlorine nitrogen-doped fluorescent carbon quantum dots.

[0045] 3. Preparation of nano-emulsion: Mix 0.55 kg of lavender essential oil, 11.25 kg of carbon quantum dots, and 10.70 kg of Span-60 to prepare a mixed solution, and emulsify with a high-pressure homogenizer for 30 min at room temperature to obta...

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Abstract

The invention discloses a carbon quantum dot nano-emulsion and application of the carbon quantum dot nano-emulsion as a disinfectant. According to the preparation method, a eutectic solvent synthesized from choline chloride, amino acid and lactic acid is used as a raw material to synthesize nitrogen and chlorine doped carbon quantum dots; the nano-emulsion is prepared by utilizing natural plant essential oil, and the novel, green, environment-friendly and safe disinfectant is prepared by fully utilizing the characteristics of broad-spectrum sterilization, no drug resistance, no cell toxicity and no irritation reaction to skin of carbon quantum dots and the plant essential oil. The nano-emulsion prepared by the invention has the characteristics of safety, environmental protection, simple preparation process, rapid sterilization and excellent effect.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, in particular to a carbon quantum dot nanoemulsion and its application as a disinfectant. Background technique [0002] Disinfectants are used to kill pathogenic microorganisms on the transmission medium to make them harmless, eliminate pathogenic microorganisms outside the human body, cut off the transmission route of infectious diseases, and achieve the purpose of controlling infectious diseases. Disinfectants can be divided into sterilants, high-efficiency disinfectants, medium-efficiency disinfectants, and low-efficiency disinfectants according to their level of action. Sterilizers can kill all microorganisms to meet the sterilization requirements, including formaldehyde, glutaraldehyde, ethylene oxide, peracetic acid, hydrogen peroxide, chlorine dioxide, and chlorine gas. In recent years, with the rapid development of biotechnology, researchers at home and abroad have disco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/22A01N59/00A01P1/00
CPCY02A50/30
Inventor 焦扬高哲杨亚玲
Owner 云南伦扬科技有限公司
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