CHẾ TẠO VẬT LIỆU KHÁNG KHUẨN DỰA TRÊN VẬT LIỆU ĐỒNG(II) OXIDE/ĐỒNG VÀ BẠC OXIDE=FABRICATION OF ANTIBACTERIAL MATERIALS BASED ON COPPER (II) OXIDE/COPPER AND SILVER OXIDE

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Tác giả: Xuân Linh Hà, Phú Hiệp Hoàng, Quốc Dũng Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2024

Mô tả vật lý: tr.467 - 474

Bộ sưu tập: Metadata

ID: 480934

Thêm vào giỏ

Nanostructured materials, specifically CuO/Cu and Ag2O nanoparticles, were successfully fabricated using the anodic dissolution method combined with ultrasonic vibration. The structural morphology, atomic composition, and structure of the materials were determined using scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The results indicated that the particle size achieved was within the nano scale with a size of about 100 nm. The formation mechanism of CuO/Cu and Ag2O nanoparticles products is also explained. The antibacterial properties of the materials were investigated separately for CuO/Cu and Ag2O nanoparticles as well as their mixture. The antibacterial performance of copper oxide/copper nanoparticles was found to be most effective against Sarcina lutea and least effective against Staphylococcus aureus. In contrast, the antibacterial performance of silver oxide nanoparticles was highest against Pseudomonas aeruginosa and lowest against Sarcina lutea. The CuO/Cu:Ag2O mixture at a concentration of 50 µg/ml demonstrated good antibacterial activity against both Sarcina lutea and Staphylococcus aureus.Vật liệu có cấu trúc nano CuO/Cu, Ag2O đã được chế tạo thành công bằng phương pháp điện phân anot tan kết hợp với rung siêu âm. Hình thái cấu trúc, thành phần nguyên tử và cấu trúc của vật liệu xác định bằng phương pháp hiển vi điện tử quét (SEM), tán xạ năng lượng tia X (EDS) và nhiễu xạ tia X (XRD). Kết quả cho thấy kích thước của các hạt đạt kích thước nano với kích thước khoảng 100 nm. Nghiên cứu khả năng kháng khuẩn của các vật liệu được thực hiện trên gồm vật liệu nano CuO/Cu và Ag2O riêng rẽ và hỗn hợp của chúng. Kết quả kháng khuẩn của hạt nano đồng oxide/đồng tốt nhất trên vi khuẩn Sarcina lutea và thấp nhất với vi khuẩn Staphylococcus aureus. Trong khi đó, kết quả kháng khuẩn của hạt nano bạc oxide tốt nhất trên vi khuẩn Pseudomonas aeruginosa và thấp nhất với vi khuẩn Sarcina lutea. Hỗn hợp CuO:Ag2O 50 µg/ml cho khả năng kháng khuẩn tốt với cả vi khuẩn Sarcina lutea và thấp nhất với vi khuẩn Staphylococcus aureus.

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