Preparation method and antibacterial application of copper selenide nano-material with near infrared absorption property
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A nano-composite material, copper selenide technology, applied in botany equipment and methods, medical preparations containing active ingredients, nanotechnology for materials and surface science, etc., to achieve low cost, mild reaction conditions, no raw materials Poison effect
Inactive Publication Date: 2018-09-21
QUANZHOU NORMAL UNIV
View PDF2 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
After reviewing the literature, we found that there is no relevant report on the preparation of CuSe / BSA nanocomposites using bovine serum albumin as a template
Method used
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
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] (1) Take 9.6mL 1mg / mL bovine serum albumin solution, stir at room temperature for 10 minutes, add 0.6mL0.2mol / L tetravalent selenium solution as selenium source, then add 1.8mL 0.4mol / L L-ascorbic acid reduced selenium Simple substance, stirred at 1000-1500rpm for 10 min;
[0033] (2) Get 0.6mL 0.4mol / L anhydrous copper sulfate and 2.4mL 0.4mol / L L-ascorbic acid mixed solution;
[0034] (3) Add the mixed solution group obtained in step (2) dropwise to step (1), react at room temperature for 24 hours, and freeze-dry to obtain the copper selenide nanocomposite material.
Embodiment 2
[0036] (1) Take 8.6mL 2mg / mL bovine serum albumin solution, stir at room temperature for 10 minutes, add 0.6mL0.2mol / L tetravalent selenium solution as selenium source, then add 1.8mL 0.4mol / L L-ascorbic acid reduced selenium Simple substance, stirred at 1000-1500rpm for 10 min;
[0037] (2) Get 0.6mL 0.4mol / L anhydrous copper sulfate and 2.4mL 0.4mol / L L-ascorbic acid mixed solution;
[0038] (3) Add the mixed solution group obtained in step (2) dropwise to step (1), react at room temperature for 24 hours, and freeze-dry to obtain the copper selenide nanocomposite material.
Embodiment 3
[0040] (1) Take 8.6mL 3mg / mL bovine serum albumin solution, stir at room temperature for 10 minutes, add 0.6mL0.2mol / L tetravalent selenium solution as selenium source, then add 1.8mL 0.4mol / L L-ascorbic acid reduced selenium Simple substance, stirred at 1000-1500rpm for 10 min;
[0041] (2) Get 0.6mL 0.1mol / L anhydrous copper sulfate and 1.0mL 0.4mol / L L-ascorbic acid mixed solution;
[0042] (3) Add the mixed solution group obtained in step (2) dropwise to step (1), react at room temperature for 24 hours, and freeze-dry to obtain the copper selenide nanocomposite material.
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
Login to view more
PUM
Login to view more
Abstract
The invention discloses a preparation method and antibacterial application of a copper selenide nano-material with a near infrared absorption property. The preparation method comprises the following steps: preparing a bovine serum albumin solution with certain concentration and volume; adding a selenium oxide solution with certain concentration and volume into the bovine serum albumin solution anduniformly mixing; then adding a certain amount of ascorbic acid and stirring for 10 to 30min to obtain a solution A; preparing a copper sulfate solution and an ascorbic acid solution, which have certain concentrations and volumes, and uniformly mixing to obtain a solution B; slowly adding the solution B into the solution A; magnetically stirring for 3 to 12h to obtain a copper selenide-protein nano composite solution, wherein the solution has the near infrared absorption property with the wavelength is about 1000nm and has a very good bacterium-inhibition effect on escherichia coli and staphylococcus aureus. The preparation method disclosed by the invention is simple and has moderate reaction conditions and low cost; a product has the near infrared absorption property and has a very goodbacterium-inhibition effect on Gram-positive bacteria and negative bacteria; the product is expected to be applied to the aspects including biomedicines (such as bacterium resistance and photothermaltherapy of cancers), daily chemical cleaning, coating additives and the like.
Description
technical field [0001] The invention relates to the field of nanomaterial preparation and application of antibacterial technology, in particular to a preparation method and application of a copper selenide nanocomposite material. Background technique [0002] Bacterial infection is one of the main ways to endanger human life and health, and millions of people around the world die every year due to bacterial infection. Antibiotics are currently the main drug against bacterial infections. With the continuous research of nanotechnology, it is gradually found that inorganic nanomaterials have the advantages of no drug resistance, good heat resistance, wide antibacterial range, long antibacterial time and low toxicity compared with traditional antibiotics in antibacterial effect. Such materials mainly include: nano-silver, nano-zinc oxide, nano-titanium oxide, nano-copper and copper oxide, etc. The commonly used preparation methods mainly include: chemical vapor deposition, las...
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
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more