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Phase‐change random‐access memory is a promising non‐volatile memory technology. However repeated phase‐change operations can cause durability issues owing to defects formed by long‐distance atom diffusion. To mitigate these issues, phase‐change heterostructure (PCH) devices with confinement material (CM) layers based on transition metal dichalcogenides (TMDs) such as TiTe2 have been proposed. This...
Phase‐Change Heterostructure Memory
In article number 2303659, Tae Geun Kim and co‐workers present phase‐change heterostructure (PCH) memory devices that control vertical atomic diffusion during operation. The device performance, such as power consumption and thermal stability, is determined by the choice of transition metal dichalcogenide‐based confinement materials with different cohesive energies,...
Cancer Therapy
In article number 2202694, Dong‐Hyun Kim and co‐workers develop reactive oxygen species (ROS)–responsive biodegradable metallic nanoparticles that can be used for various biomedical applications. Given the challenges of non‐biodegradability of potent inorganic nanoparticles, the introduction of a ROS‐responsive cleavable hierarchical metallic supra‐nanostructure provides an exciting...
A reactive oxygen species (ROS) responsive cleavable hierarchical metallic supra‐nanostructure (HMSN) is reported. HMSN structured with thin branches composed of primary gold (Au) nanocrystals and silver (Ag) nano‐linkers is synthesized by a one‐pot aqueous synthesis with a selected ratio of Au/Ag/cholate. ROS responsive degradability of HMSN is tested in the presence of endogenous and exogeneous...