Taghizadeh Seyedeh-Masoumeh, Lal Neha, Ebrahiminezhad Alireza, Moeini Fatemeh, Seifan Mostafa, Ghasemi Younes, Berenjian Aydin
Department of Pharmaceutical Biotechnology, School of Pharmacy, and Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
School of Engineering, Faculty of Science and Engineering, The University of Waikato, Hamilton 3240, New Zealand.
Nanomaterials (Basel). 2020 Mar 15;10(3):530. doi: 10.3390/nano10030530.
Zinc oxide (ZnO) nanoparticles have gained widespread interest due to their unique properties, making them suitable for a range of applications. Several methods for their production are available, and of these, controlled synthesis techniques are particularly favourable. Large-scale culturing of produces secretory carbohydrates as a waste product, which have been shown to play an important role in directing the particle size and morphology of nanoparticles. In this investigation, ZnO nanorods were produced through a controlled synthesis approach using secretory carbohydrates from , which presents a cost-effective and sustainable alternative to the existing techniques. Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD) analysis, transmission electron microscopy (TEM), and UV-Vis spectroscopy were used to characterise the nanorods. The prepared nanorods exhibited a broad range of UV absorption, which suggests that the particles are a promising broadband sun blocker and are likely to be effective for the fabrication of sunscreens with protection against both UVB (290-320 nm) and UVA (320-400 nm) radiations. The antimicrobial activity of the prepared nanorods against Gram-positive and Gram-negative bacteria was also assessed. The nanostructures had a crystalline structure and rod-like appearance, with an average length and width of 150 nm and 21 nm, respectively. The nanorods also demonstrated notable antibacterial activity, and 250 μg/mL was determined to be the most effective concentration. The antibacterial properties of the ZnO nanorods suggest its suitability for a range of antimicrobial uses, such as in the food industry and for various biomedical applications.
氧化锌（ZnO）纳米颗粒因其独特性质而受到广泛关注，使其适用于一系列应用。有几种生产它们的方法，其中，可控合成技术特别有利。大规模培养会产生分泌性碳水化合物作为废物，已表明这些碳水化合物在指导纳米颗粒的粒径和形态方面发挥重要作用。在本研究中，使用来自[具体来源未明确]的分泌性碳水化合物通过可控合成方法制备了ZnO纳米棒，这为现有技术提供了一种经济高效且可持续的替代方案。使用傅里叶变换红外（FTIR）光谱、X射线粉末衍射（XRD）分析、透射电子显微镜（TEM）和紫外可见光谱对纳米棒进行了表征。制备的纳米棒表现出广泛的紫外线吸收，这表明这些颗粒是一种有前景的宽带防晒剂，可能有效地用于制造能抵御紫外线B（290 - 320纳米）和紫外线A（320 - 400纳米）辐射的防晒霜。还评估了制备的纳米棒对革兰氏阳性和革兰氏阴性细菌的抗菌活性。这些纳米结构具有晶体结构和棒状外观，平均长度和宽度分别为150纳米和21纳米。纳米棒还表现出显著的抗菌活性，确定250微克/毫升为最有效浓度。ZnO纳米棒的抗菌特性表明其适用于一系列抗菌用途，例如在食品工业和各种生物医学应用中。
