Vampire off revenants—are common in vampire folklore. Garlic is a common example, a branch of wild rose and hawthorn plant are said to harm vampires, and in Europe, sprinkling mustard seeds on the roof of a house was said to keep them away. Other apotropaics include sacred items, for example a crucifix, rosary, or holy water. Vampires are said to be unable to walk on consecrated ground, such as that of churches or temples, or cross running water. Although not traditionally regarded as an apotropaic, mirrors have been used to ward off vampires when placed, facing outwards, on a door (in
Cross-linked enzyme aggregate Cross-linked enzyme aggregate In biochemistry, a cross-linked enzyme aggregate is an immobilized enzyme prepared via cross-linking of the physical enzyme aggregates with a difunctional cross-linker. They can be used as stereoselective industrial biocatalysts. Enzymes are proteins that catalyze ("i.e." accelerate) chemical reactions. They are natural catalysts and are ubiquitous, in plants, animals and microorganisms where they catalyze processes that are vital to living organisms. They are intimately involved in numerous biotechnological processes, such as cheese making, beer brewing and winemaking, that date back to the dawn of civilization. Recent advances in biotechnology, particularly in genetic and protein engineering, and genetics