the humidity monitoring and evaluating require the sensitive materials with the features of short response and recovery times, as well as diverse-configuration compatibility, that can meet the spatial and temporal humidity gradients measurements. [8][9][10][11][12][13][14][15] To date, many efforts have been performed for the fabrication of sensitive materials, including metal oxides, ceramics, perovskites, carbon compounds, and organic polymers, to realize high-performance humidity monitoring. [16][17][18][19][20] However, the complicated steps for device construction, the low flexibility, as well as the extreme dependence on external energy-supply systems or coupled circuits, have obstructed to some extent the broad application of these reported sensor devices. [21][22][23][24][25] Therefore, it is of significance to develop new humidity-sensitive materials with enhanced working performance, that is, wide detection range, short response

The practical application of molecular switches was highly dependent on the reversible spin-state switching under ambient conditions, which needs a delicate materials design. Here, by confining spin-crossover material into a...

color-switching property of Prussian Blue and its analogs with the photocatalytic activity of TiO 2 nanoparticles, which have excellent scalability and outstanding rewriting performance. Additionally, the Li group has reported AgI/CsPbI 3 rewritable platform by using a reversible fluorescence switching of CsPbI 3 nanocrystals (NCs) and photochromic AgI NCs as the photosensitizer. The AgI NCs have decomposed into Ag and I 2 to form Ag-CsPbI 3 heterostructures under light irradiation, while Ag has oxidized into AgI to

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Phototherapy is considered a promising alternative to conventional tumor treatments due to its noninvasive modality and effective therapeutic effect. However, designing a photosensitizer with satisfactory therapeutic effect and high security remains a considerable challenge. Herein, a series of dimeric heptamethine cyanine photosensitizers with an aromatic diphenol linker at the meso position is developed to improve the photothermal conversion efficiency (PCE). Thanks to the extended conjugate system and high steric hindrance, the screened 26NA-NIR and 44BP-NIR exhibit high PCE (≈35%), bright near-infrared (NIR) fluorescence, excellent reactive oxygen species (ROS) generation capability, and improved photostability. Furthermore, their outstanding performance on imaging-guided PDT-PTT synergistic therapy is demonstrated by in vivo and in vitro experiments. In conclusion, this study designs a series of dimeric heptamethine cyanine photosensitizers and presents two compounds for potential clinical applications. The strategy provides a new method to design NIR photosensitizers for imaging-guided cancer treatment.