Given their durability and long‐term stability, self‐healable hydrogels have, in the past few years, emerged as promising replacements for the many brittle hydrogels currently being used in preclinical or clinical trials. To this end, the incompatibility between hydrogel toughness and rapid self‐healing remains unaddressed, and therefore most of the self‐healable hydrogels still face serious challenges within the dynamic and mechanically demanding environment of human organs/tissues. Furthermore, depending on the target tissue, the self‐healing hydrogels must comply with a wide range of properties including electrical, biological, and mechanical. Notably, the incorporation of nanomaterials into double‐network hydrogels is showing great promise as a feasible way to generate self‐healable hydrogels with the above‐mentioned attributes. Here, the recent progress in the development of multifunctional and self‐healable hydrogels for various tissue engineering applications is discussed in detail. Their potential applications within the rapidly expanding areas of bioelectronic hydrogels, cyborganics, and soft robotics are further highlighted.

Graphene The addition of a protective diluent (e.g., pyrene) to graphite during ball-milling results in a game-changer yield (>90%) of defect-free graphene, as described in article number 1603528 by Matat Buzaglo, Oren Regev, and co-workers. In the non-protected milling, there is a continuous fragmentation leading to amorphous carbon formation, whereas in a diluent-protected milling, the diluent adsorbs part of the impact forces, enabling exfo-liation into graphene, whose size is controlled by the milling energy and the diluent type. A Supercritical Lens Optical Label-Free Microscopy: Sub-Diffraction Resolution and Ultra-Long Working Distance Optical Imaging A planar metalens for achieving super-resolution imaging in far-field is proposed. This metalens, which has a non-sub-wavelength feature size, can be fabricated by conventional laser pattern generator. The imaging process is purely physical and captured in real time, without any pre-and post-processing. A new member of the layered pseudo-1D material family-monoclinic gal-lium telluride (GaTe)-is synthesized by physical vapor transport on a variety of substrates. The [010] atomic chains and the resulting anisotropic behavior are clearly revealed. The GaTe flakes display multiple sharp photoluminescence emissions in the forbidden gap, which are related to defects localized around selected edges and grain boundaries.

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