Effect of DNA Origami Nanostructures on Bacterial Growth.

DNA origami nanostructures are a powerful tool in biomedicine and can be used to combat drug-resistant bacterial infections. However, the effect of unmodified DNA origami nanostructures on bacteria is yet to be elucidated. With the aim to obtain a better understanding of this phenomenon, the effect of three DNA origami shapes, i.

TiO nanoparticle coatings on glass surfaces for the selective trapping of leukemia cells from peripheral blood.

Photodynamic therapy (PDT) using TiO nanoparticles has become an important alternative treatment for different types of cancer due to their high photocatalytic activity and high absorption of UV-A light. To potentiate this treatment, we have coated commercial glass plates with TiO nanoparticles prepared by the sol-gel method (TiO -m), which exhibit a remarkable selectivity for the irreversible trapping of cancer cells. The physicochemical properties of the deposited TiO -m nanoparticle coatings have been characterized by a number of complementary surface-analytical techniques and their interaction with leukemia and healthy blood cells were investigated.