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• Emerging g-DLP technique and shape memory polymers were employed to the dual information encryption. • Reconfigurable geometry and tunable optics provide the encryption and decryption behaviors under the stimulations of temperature and humidity. • The dual information encryption system is erasable, repeatable, and programmable. • The encrypted information system can be stored or decrypted permanently through the different post-processing methods. Dual information encryption such as geometry and transparency switching is highly desirable for preventing the leakage of confidential information and constructing a secure environment which has wide range of applications in privacy protection, anti-counterfeiting, and information security. However, it is still a challenge to develop a novel encrypted strategy and smart material to achieve credible protective capacity for stored information by a facile and programmed manner. Herein, integrating with arbitrary grayscale stereolithography, the hydrophilic ultraviolet (UV) curable shape memory polymers (HU-SMPs) with superior mechanical properties (the tensile strength of 29.39 MPa, elongation of 46.32 %, and the toughness of 1021.98 kJ.m−3) were prepared, which can be used for multifunctional information encryption. During the encrypted process, the HU-SMPs with the performances of high deformable and excellent shape memory behaviors can provide the preprogrammed morphological information and inevitable encryption, while the humidity-responsive of HU-SMPs capable of generating revisable transparency switching that can be encoded as the secondary information encryption. In this way, the dual encrypted information in the HU-SMPs is readable only after sequential shape recovery and fast hydration under heat-stimuli and humidity-stimuli. In addition, with the aid of digitally grayscale drawing, the secondary encrypted information is cyclically displayed and erasable due to the reversible hydration and dehydration process of HU-SMPs. Finally, the encrypted information is also can be permanently storage or decryption by the versatile post-processing methods of UV irradiation after and before decryption, respectively. In short, the design of HU-SMPs that compatible with grayscale digital light process (g-DLP)-based 3D printing, will motivates the future development of smart materials and provides a new insight into the information encrypt fields. [ABSTRACT FROM AUTHOR]

• Chlorella incorporated into hydrogels for continuous oxygen and bioelectric delivery. • Hydrogels offer mechanical support and create optimal microenvironment for Chlorella. • Hydrogels improve diabetic wound healing by enhancing proliferation and angiogenesis. Electrical stimulation and oxygen are vital for promoting cell proliferation, migration, and differentiation to repair damaged tissues in chronic wound healing in patients with diabetes. The effective oxygen production by Chlorella has garnered attention in the medical field, but the potential of extracellular electron production in skin repair has not been explored. Inspired by this, we developed CHPS hydrogels, a composite of polyacrylamide and sodium alginate, with Chlorella loaded in a semi-interpenetrating network. This network is formed by crosslinking acrylamide initiated by free radicals, with alginate chains dispersed within the network. When applied to wounds, CHPS hydrogels effectively protect damaged tissue, provide mechanical support to Chlorella against external forces, and create an optimal artificial microenvironment to promote the proliferation of Chlorella. Our study demonstrated that CHPS hydrogels exhibit remarkable fracture elongation and adhesion properties and continuously produce oxygen and bioelectrical currents through photosynthesis. Furthermore, the sustained release of dissolved oxygen and bioelectricity by CHPS hydrogels significantly enhances cell proliferation, migration, and angiogenesis, leading to improved wound healing in diabetic mice. These findings provide compelling evidence for further exploration of CHPS hydrogels as a cost-effective, simple, and accessible strategy for enhancing the clinical treatment of chronic wounds in diabetic patients. [ABSTRACT FROM AUTHOR]

[Display omitted] • Calcined Ge-UTL encountered structural degradation under pure water solution at RT. • A simply ultrasonic treatment caused random arrangement of the formed cfi layers. • The stacking faults of cfi layers generated abundant intracrystal mesopores. • An excellent styrene epoxidation activity (TOF = 403 h−1) is achieved on Co-Meso-UTL. Co-zeolites with hierarchical porous are significantly desirable for the liquid-phase selective epoxidation of styrene that required relatively open reaction spaces. A typical UTL germanosilicate with the absence of organic structure-directing agent molecules inside pore channels suffered from severe structural collapse after ultrasonic treatment under pure water medium, originating from the unstable germanium-rich double four ring subunits. The simple strategy cleaved the weak linkage Ge-O bands and caused the irregular location of silicon-rich cfi layers. Subsequently, Co activity centers was incorporated into the framework through reacting with the abundant silanol groups located in the hydroxyl nests at room temperature. The random arrangement of mono- or multi- cfi layers induced the stacking faults and generated a large amount of intracrystal mesopores after calcination. The resultant Co-Meso-UTL catalysts favored the molecules diffusion of large-sized styrene and target products, improving the accessibility of Co active sites and exhibiting excellent catalytic performance in the styrene epoxidation reaction with single hydrogen peroxide (H 2 O 2) oxidant. Especially, high styrene oxide product selectivity was also obtained through controlling appropriate H 2 O 2 -added content as well as reaction time, which possessed a highest turnover frequency value of 403 h−1 among the reported catalysts. [ABSTRACT FROM AUTHOR]

[Display omitted] • Au-loaded mesoporous silica/gelatin hydrogel was used the excellent humidity sensing film. • The prepared sensor could detect NH 3 by utilizing the outstanding ability to adsorb water molecules. • An egg storage scenario was simulated, and the water loss in eggs was monitored by the humidity sensor. • The sensing mechanism and contribution of each component in the sensing process were analyzed. In this paper, a composite hydrogel film (Au/Me-SiO 2 /G) based on Au nanoparticles, mesoporous silica and gelatin was prepared, which can be used for low relative humidity (RH) detection. Au-1%/Me-SiO 2 /G exhibits a response of 423% in the range of 0.4–30% RH, a short response time of 28 s, a linearity of R2 = 0.997, and good long-term stability. With the outstanding ability to adsorb water molecules, the sensor can detect NH 3 at room temperature and low humidity environment. The response of the sensor to NH 3 significantly increases with the humidity. At 30% RH, the initial impedance value of the sensor is as low as ∼6.6 MΩ, and the response to 50 ppm NH 3 is 78%. In addition, an egg storage scenario was simulated, and the water loss in eggs was monitored simultaneously by the prepared humidity sensor and a commercial sensor. The results demonstrate the practical application detection ability of the prepared humidity sensor. [ABSTRACT FROM AUTHOR]

• The way for arterial and venous thrombus are treated should also be varied. • Smaller system favors penetration, while larger one promotes trapping in thrombus. • Physical-matched nano-systems show advances in specific arteriovenous thrombolysis. The differences of physiology, fluid parameters and core structures of thrombus in artery and vein determine the distinct ways for arterial and venous thrombolytic treatments. As an effective drug delivery strategy, physical-matching of nano-delivery system and clot structure will lead to significant advances in specific arteriovenous thrombolysis treatment. We fabricated mesoporous silicon nanoparticles (MSNs) with different sizes (MSN-S: ∼40 nm, MSN-M: ∼70 nm, MSN-L: ∼110 nm) cloaked with platelet membrane (termed PNPs). Results demonstrated that PNP-S (small-sized PNP) exhibited the optimal penetration effect in the both carotid arterial thrombus and deep venous thrombosis (DVT) rat model. However, the enrichment effects in the arterial and venous thrombus were distinct. Upon the action of blood flow shear stress, PNP-S had a better enrichment effect in the carotid arterial thrombus rat model compared with the other groups, while PNP-L (large-sized PNP) showed the best penetration and enrichment efficiency in the DVT rat model. After loading with 100 U/g urokinase (UK) (termed UNPs), large-sized UNPs (UNP-L) and small-sized UNPs (UNP-S) respectively yielded the best thrombolytic effect in the DVT and carotid arterial thrombus rat model, which was near to that of high-dose UK (200 U/g). These results revealed that the physical-matching brought by size adjustment optimized the penetration and retention of nano-delivery system in various thrombi, and eventually enabled specific and effective arteriovenous thrombolysis. [ABSTRACT FROM AUTHOR]

[Display omitted] • In-situ isomorphism Mn doped CoCo 2 O 4 were prepared by microwave assistance process. • Mn2CoCo 2 O 4 electrode exhibits improved capacity and broadened voltage window. • Charge storage mechanism was revealed by kinetic analysis and ex-situ characterizations. • BSH devices deliver 58.6 Wh kg−1 energy density at a power density of 950 W kg−1. Introducing secondary metal ions into host electrode materials may result in extra redox sites and regulating the electronic structure to increase electrochemical properties. With the assistance of microwave, Mn cation was in-situ isomorphism doped into porous CoCo 2 O 4 nanowires during a hydrothermal process. Ex-situ characterizations reveal that the doped Mn2+ and Mn3+ in CoCo 2 O 4 provides additional redox reaction by forming reversible Mn4+, which effectively improved electrochemical storage capacity. The added redox reaction of Mn cations is also helpful to effectively suppress the water-splitting, which expanded the operating voltage window. As a result, the as-obtained Mn-doped CoCo 2 O 4 nanowire array electrodes exhibited an enlarged specific capacity (1528.0C g−1/424.4 mA h g−1 at 1 A g−1) with a widened operating voltage window of 1.1 V and superior cycling stability (91.5 % retention after 5000cycles). Correspondingly, the battery-supercapacitor hybrid device constructed by Mn2CoCo 2 O 4 porous nanowire array electrode and biomass-derived N doped porous carbon delivered a stable working voltage of 1.9 V and superior energy density of 58.6 Wh kg−1 at power density of 950 W kg−1 as well as excellent stability (83.7 % specific capacity retained at 10 A g−1 for 8000cycles). This work provides a feasible route for the construction of energy storage devices with high energy density and high power density. [ABSTRACT FROM AUTHOR]