Despite recent progress in 2D nanomaterials-based biosensing, it remains challenging to achieve sensitive and high selective detection. This study develops few-layer graphdiyne (GD) nanosheets (NSs) that are used as novel sensing platforms for a variety of fluorophores real-time detection of DNA with low background and high signal-to-noise ratio, which show a distinguished fluorescence quenching ability and different affinities toward single-stranded DNA and double-stranded DNA. Importantly, for the first time, a few-layer GD NSs-based multiplexed DNA sensor is developed.

methods can be further classified to the soft templating method and hard templating method. [57] It has been discovered that some soft matters, such as supramolecular, surfactant micelles, and polymer vesicles can be applied to induce the formation Yanze Wei received his B.S. and M.S. degrees in chemistry from Shandong University, China (2012 and 2015). He then obtained his Ph.D. degree from University of Science Technology Beijing in 2019. He is also a joint Ph.D. student in Institute of Process Engineering, Chinese Academy of Sciences under the supervision of Prof. Dan Wang. His research interests mainly focus on discovering the structure-performance correlation of hollow multishell structured photocatalysts, and mixed-dimensional inorganic/organic heterojunctions. Shouhua Feng an academician of the Chinese Academy of Sciences (2005), obtained his Ph.D. degree in chemistry at Jilin University, P.R. China (1986). He has been engaged in inorganic solidstate chemistry and preparative chemistry for more than 30 years. He has found the triple valence states and atomic scale p-n junctions in perovskite manganese oxides. In recent years, he focuses on the research of functional composite solids and chemical-medicine interdisciplinary.

Constructing hollow multi‐shelled structures (HoMSs) has a significant effect on promoting light absorption property of catalysts and enhancing their performance in solar energy conversion applications. A facile hydrothermal method is used to design the SrTiO3−TiO2 heterogeneous HoMSs by hydrothermal crystallization of SrTiO3 on the surface of the TiO2 HoMSs, which will realize a full coverage of SrTiO3 on the TiO2 surface and construct the SrTiO3/TiO2 junctions. The broccoli‐like SrTiO3−TiO2 heterogeneous HoMSs exhibited a fourfold higher overall water splitting performance of 10.6 μmol h−1 for H2 production and 5.1 μmol h−1 for O2 evolution than that of SrTiO3 nanoparticles and the apparent quantum efficiency (AQE) of 8.6 % at 365 nm, which can be mainly attributed to 1) HoMS increased the light absorption ability of the constructed photocatalysts and 2) the SrTiO3−TiO2 junctions boosted the separation efficiency of the photogenerated charge carriers.