Wheat prolamin/nano-silver particles with green synthetic core-shell structure and its preparation method and application

A wheat gliadin and nano-silver particle technology, which is applied in the field of nano-material preparation, can solve the problems of easy aggregation and oxidation of silver nano-materials, and achieves enhanced food and biomedical applications, important social and economic benefits, and high production efficiency. Effect
CN109676149BActive Publication Date: 2020-12-22SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2020-12-22

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Abstract

The invention belongs to the technical field of nanometer materials, and discloses a green synthetic core-shell structure wheat prolamin / nano-silver particle and a preparation method and application thereof. Methods: (1) make carnosic acid into solution to obtain carnosic acid solution; make silver nitrate into solution to obtain silver nitrate solution; (2) mix wheat prolamin solution with silver nitrate solution, then add sage tail The oxalic acid solution is adjusted to a pH of 3 to 7, and reacted at a constant temperature to obtain wheat prolamin / nano-silver particles with a core-shell structure. The method of the invention is simple, the conditions are mild, and it is green and environment-friendly; the prepared wheat prolamin / nano-silver particles have good dispersibility and stability, and have good bactericidal effect on Escherichia coli and Staphylococcus aureus and have no toxic and side effects , can be applied to antibacterial materials, biosensors and other fields.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a green synthetic core-shell structure wheat prolamin / nano-silver particle and a preparation method and application thereof. Background technique

[0002] Nanosilver materials have been extensively studied over the years. Nano-silver particles exhibit remarkable and unique properties, such as surface-enhanced Raman scattering, catalysis, biological and medical sensors, and strong broad-spectrum antibacterial activity, and are non-toxic and safe, making them widely used in biomedicine, rapid biological detection, and industrial Catalysis, food safety and other aspects have broad application prospects. The preparation methods of nano-silver reported in the literature generally include chemical methods and physical methods. Among them, the liquid-phase chemical reduction method has become the main method for preparing nano-silver at low cost because of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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