Piezoelectric changes of anisotropy and magnetization in ferrite-garnet film
The results of the effect of mechanical strain on magnetic anisotropy, the direction of magnetization vector and domain structure of ferrite-garnet film, rigidly connected with the zirconium-titanium lead (PZT) piezoceramic plate are presented. Since such a sandwich structure could be remagnetized both by magnetic field and electric voltage it could be used as the electro-magnetooptical modulator of light or spin switching cell in spintronics.
Ferrite-piezoelectric light modulator with electric and magnetic control of magnetization
The influence of mechanical stresses developed in a piezoelectric lead zirconate titanate (PZT) plate on the domain structure of mechanically coupled epitaxial yttrium iron garnet (YIG) film has been studied. The application of electric voltage to the piezoelectric plate leads to magnetoelastic variations in the anisotropy of the garnet film, which is manifested by reorientation of the magnetization vector from the direction perpendicular to the film plane to a direction parallel to this plane. Using this effect, it is possible to perform magneto-optical modulation of light transmitted through the film. Estimations of the influence of film parameters on the orientation of magnetization and characteristics of light beam allow the optimum parameters of the composite structure for various modulation regimes to be determined.
Atomistic insight into novel co-delivery of doxorubicin and paclitaxel using fullerene modified by dimethyl acrylamide trimethyl chitosan: A computational study

 Background: The distribution of drugs could not be controlled in the conventional drug delivery system. This has led to the development of a smart nanoparticle-based drug delivery system, known as smart drug delivery systems. In cancer research, novel biocompatible nanocarriers have received much attention for various ranges of anticancer drugs.In the current study, the effect of a novel co-polymer "dimethyl acrylamide-trimethyl chitosan" was investigated on drug delivery of doxorubicin and paclitaxel utilizing modified fullerene nanocarrier. This study was performed via molecular dynamics simulation based on acidic pH sensitivity of the cancer microenvironment. Furthermore, hydrogen bonds, diffusion coefficient, gyration radius, and drug-carrier interaction energies were investigated here. Interestingly, a simultaneous pH and temperature-sensitive system was proposed for paclitaxel and doxorubicin for a co-polymer. A pH-sensitive and temperature-sensitive copolymer was used based on trimethyl chitosan and dimethyl acrylamide, respectively. In such a dualistic approach, co-polymer makes an excellent option to have two properties in one bio-polymer. Results: The results suggest the dramatic and indisputable role of the co-polymer in the release of doxorubicin and paclitaxel in cancerous tissues, as well as an increased biocompatibility and drug uptake in a neutral state. The validation test was performed by repeated simulations of a similar article. The results are very close to those of the reference paper .Conclusions: Overall, conjugated fullerene and dimethyl acrylamide-trimethyl chitosan (DMAA-TMC) as carriers can be a good proposition for loading, delivery, and release of anti-cancer drugs based on a pH/temperature-sensitive smart drug delivery system.