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Since the discovery that Fe3O4 nanoparticle has intrinsic natural peroxidase‐like activity by Yan et al in 2007, mimicking native enzymes via nano‐engineering (named as nanozyme) pays a new avenue to bypass the fragility and recyclability of natural enzymes and thus expedites the biocatalysis in multidisciplinary applications. In addition, the high programmability and structural stability attributes of nanozyme afford the ease of coupling with electromagnetic waves of different energies, providing great opportunities to construct photo‐responsive nanozyme under user‐defined electromagnetic waves, which is known as photo‐nanozyme. In this concept, we aim to providing a summary of how electromagnetic waves with varying wavelengths can serve as external stimuli to induce or enhance the biocatalytic performance of photo‐nanozymes, thereby offering fascinating functions that cannot be achieved by pristine nanozyme. [ABSTRACT FROM AUTHOR]

Floquet engineering provides an amazing way to reshape materials from topologically trivial to non‐trivial phases by exerting periodic drives. Among its vast investigations spanning various physical systems, the toolkit via driving on‐site potentials only is rarely employed. Here, a Floquet protocol that switches a simple lattice into a non‐trivial topological phase merely by driving its on‐site potentials is proposed. Non‐trivial topology arises from unpaired Floquet drives. Topological zero‐quasienergy states are found at boundaries between non‐trivial and trivial structures, being protected by sublattice symmetry. These states are experimentally demonstrated in a photonic platform. This approach can be extended to unveil more novel topological phenomena as well as to endow non‐trivial properties to a host of materials. [ABSTRACT FROM AUTHOR]

Coatings incorporated with Sb2O3 were obtained on AZ31B magnesium alloy during micro‐arc oxidation (MAO) by adding Sb2O3 (0, 2, 4, 6, 8 g/L) into the electrolyte. The voltage of MAO process, microstructure, element distribution, thickness, phase analysis, microhardness, adhesion, and corrosion behavior of the coatings were, respectively, investigated. The results showed that the addition of different concentrations of Sb2O3 caused the voltage variation, which resulted in the changes in microstructure, element distribution, and phase composition of coatings, and further led to the improvement of coatings properties. It was found that the addition of Sb2O3 could effectively decrease the breakdown voltage, and made the voltage of micro‐arc oxidation stage change. Moreover, the presence of Sb2O3 influenced surface morphologies of the coatings. Additionally, with the increase in Sb2O3, the microhardness of coatings was 155.2, 199.78, 277.34, 267.53, and 127.93 HV, respectively; these were higher than substrate (68.5 HV). Moreover, the addition of Sb2O3 effectively improved adhesion. As the Sb2O3 increased, the corrosion rate was 2.19 × 10−4, 9.09 × 10−5, 4.10 × 10−5, 2.52 × 10−4, and 2.96 × 10−4 mm/a, respectively, and the corrosion resistance increased first and then decreased with the increase in Sb2O3. In sum, the optimal Sb2O3 concentration was 4 g/L. [ABSTRACT FROM AUTHOR]