Ilnicka Anna, Walczyk Mariusz, Lukaszewicz Jerzy P
Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarina St., 87-100 Torun, Poland.
Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarina St., 87-100 Torun, Poland.
Mater Sci Eng C Mater Biol Appl. 2015;52:31-6. doi: 10.1016/j.msec.2015.03.037. Epub 2015 Mar 24.
Renewable raw materials chitin and chitosan (N-deacetylated derivative of chitin) were subjected to action of different copper modifiers that were carbonized in the atmosphere of the N2 inert gas. As a result of the novel manufacturing procedure, a series of carbon materials was obtained with developed surface area and containing copper derivatives of differentiated form, size, and dispersion. The copper modifier and manufacturing procedure (concentration, carbonization temperature) influence the physical-chemical and fungicide properties of the carbons. The received carbons were chemically characterized using several methods like low-temperature adsorption of nitrogen, X-ray diffraction analysis, scanning electron microscopy, cyclic voltammetry, elemental analysis, and bioassay. Besides chemical testing, some biological tests were performed and let to select carbons with the highest fungicidal activity. Such carbons were characteristic of the specific form of copper derivatives occurring in them, i.e., nanocrystallites of Cu(0) and/or Cu2O of high dispersion on the surface of carbon. The carbons may find an application as effective contact fungistatic agents in cosmetology, medicine, food industry, etc.
可再生原料几丁质和壳聚糖（几丁质的N-脱乙酰化衍生物）受到不同铜改性剂的作用，这些铜改性剂在氮气惰性气体氛围中进行碳化。通过这种新颖的制造工艺，获得了一系列具有发达表面积且含有不同形态、尺寸和分散度的铜衍生物的碳材料。铜改性剂和制造工艺（浓度、碳化温度）会影响碳材料的物理化学性质和杀菌性能。使用多种方法对所得碳材料进行化学表征，如氮气低温吸附、X射线衍射分析、扫描电子显微镜、循环伏安法、元素分析和生物测定。除了化学测试外，还进行了一些生物测试，以筛选出具有最高杀菌活性的碳材料。这类碳材料的特征在于其中存在特定形态的铜衍生物，即在碳表面高度分散的Cu(0)和/或Cu2O纳米微晶。这些碳材料可作为有效的接触性抑菌剂应用于美容、医学、食品工业等领域。
