The effect of substitutional doping of Ybon structural, electronic, and optical properties of CsCa(: Cl, Br, I) phosphors: a first-principles study.

Using first-principles calculations, the effects of Ybsubstitutional doping on structural, electronic, and optical properties of a series of perovskite compounds CsCa(: Cl, Br, I), have been investigated. We employed generalized gradient approximation (GGA) and HSE hybrid functional to study the electronic and optical properties. A series of pristine CsCa(: Cl, Br, I) is characterized as a non-magnetic insulator with indirect bandgap perovskite materials.

Advances in phenylboronic acid-based closed-loop smart drug delivery system for diabetic therapy.

There are many patients with diabetes in the world and the treatment of diabetes is still a hectic problem, which has a nagative impact on the life of diabetic patients. A lot of research has been done on this, among which the phenylboronic acid-based smart drug delivery system mimics the working mode of human islets. When it is injected into the human body, it automatically releases the corresponding amount of insulin according to the blood glucose level of the human body.