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It is a great challenge to integrate incompatible subunits into ordered macroscopic materials with tailored functionalities. Herein, a facile modular assembly strategy is demonstrated to link incompatible colloidal nanocrystals and polymer micelles by using the phenolic resol as the "molecule glue" for the synthesis of nanocrystal‐inserted mesoporous frameworks with diverse functionalities. It is found that the uniform nanocrystals can be inserted into the mesoporous frameworks with outstanding spatial dispersity, even in the case of high incorporation density. This modular assembly route is versatile, a library of nanocrystals with diverse diameters, shapes, and compositions can be integrated into various kinds of mesoporous frameworks (carbon, carbon‐SiO2, and carbon‐TiO2 composites). Unprecedently, this strategy also allows the controllable assembly of two, even three types of nanocrystals within the mesoporous frameworks to achieve multiple functionalities. The as‐prepared nanocomposites can simultaneously exhibit catalytic, magnetic, and adsorption properties independently, and show synergistic effects for tandem catalytic applications. [ABSTRACT FROM AUTHOR]

The catalytic therapy based on the nanozymes has received increasing interest in cancer treatment. However, the catalytic capabilities of standalone nanozymes are relatively limited, necessitating the development of a nano‐bio composite system that integrates both nanozymes and natural enzymes. This construction often inevitably leads to interference between natural enzyme and nanozymes, resulting in reduced synergistic performance. Herein, a cascade catalysis system featuring the "core@paratroopers" structure is proposed, wherein hollow manganese dioxide (HMnO2) serves as "core" and ultra‐small hybrid single‐micelle (H‐micelle) encapsulated with glucose oxidase (GOx) as "paratroopers" (H‐micelle‐GOx). The outer SiO2 layer of the H‐micelle can effectively protect the GOx. Under hypoxic conditions, HMnO2 reacts with endogenous H2O2 to produce O2, thereby enhancing the catalytic efficiency of GOx for starvation therapy. Simultaneously, the generated H2O2 boosts the catalytic efficiency of HMnO2, accelerating local O2 generation and alleviating tumor hypoxia. Additionally, this system exhibits rapid degradation in the tumor microenvironment characterized by high glutathione (GSH) expression, facilitating the release and deep penetration of the ultra‐small H‐micelle‐GOx "paratroopers" within the solid tumor. [ABSTRACT FROM AUTHOR]

Smart wearable devices are extensively utilized across diverse domains due to their inherent advantages of flexibility, portability, and real-time monitoring. Among these, flexible sensors demonstrate exceptional pliability and malleability, making them a prominent focus in wearable electronics research. However, the implementation of flexible wearable sensors often entails intricate and time-consuming processes, leading to high costs, which hinder the advancement of the entire field. Here, we report a pressure and proximity sensor based on oxidized laser-induced graphene (oxidized LIG) as a dielectric layer sandwiched by patterned LIG electrodes, which is characterized by high speed and cost-effectiveness. It is found that in the low-frequency range of fewer than 0.1 kHz, the relative dielectric constant of the oxidized LIG layer reaches an order of magnitude of 10 4 . The pressure mode of this bimodal capacitive sensor is capable of detecting pressures within the range of 1.34 Pa to 800 Pa, with a response time of several hundred milliseconds. The proximity mode involves the application of stimulation using an acrylic probe, which demonstrates a detection range from 0.05 mm to 37.8 mm. Additionally, it has a rapid response time of approximately 100 ms, ensuring consistent signal variations throughout both the approach and withdrawal phases. The sensor fabrication method proposed in this project effectively minimizes expenses and accelerates the preparation cycle through precise control of laser processing parameters to shape the electrode-dielectric layer-electrode within a single substrate material. Based on their exceptional combined performance, our pressure and proximity sensors exhibit significant potential in practical applications such as motion monitoring and distance detection. [ABSTRACT FROM AUTHOR]

The encapsulation of functional colloidal nanoparticles (100 nm) into single‐crystalline ZSM‐5 zeolites, aiming to create uniform core–shell structures, is a highly sought‐after yet formidable objective due to significant lattice mismatch and distinct crystallization properties. In this study, we demonstrate the fabrication of a core–shell structured single‐crystal zeolite encompassing an Fe3O4 colloidal core via a novel confinement stepwise crystallization methodology. By engineering a confined nanocavity, anchoring nucleation sites, and executing stepwise crystallization, we have successfully encapsulated colloidal nanoparticles (CN) within single‐crystal zeolites. These grafted sites, alongside the controlled crystallization process, compel the zeolite seed to nucleate and expand along the Fe3O4 colloidal nanoparticle surface, within a meticulously defined volume (1.5×107≤V≤1.3×108 nm3). Our strategy exhibits versatility and adaptability to an array of zeolites, including but not restricted to ZSM‐5, NaA, ZSM‐11, and TS‐1 with polycrystalline zeolite shell. We highlight the uniformly structured magnetic‐nucleus single‐crystalline zeolite, which displays pronounced superparamagnetism (14 emu/g) and robust acidity (~0.83 mmol/g). This innovative material has been effectively utilized in a magnetically stabilized bed (MSB) reactor for the dehydration of ethanol, delivering an exceptional conversion rate (98 %), supreme ethylene selectivity (98 %), and superior catalytic endurance (in excess of 100 hours). [ABSTRACT FROM AUTHOR]

The imitation of mussels and oysters to create high‐performance adhesives is a cutting‐edge field. The introduction of inorganic fillers is shown to significantly alter the adhesive's properties, yet the potential of mesoporous materials as fillers in adhesives is overlooked. In this study, the first report on the utilization of mesoporous materials in a biomimetic adhesive system is presented. Incorporating mesoporous silica nanoparticles (MSN) profoundly enhances the adhesion of pyrogallol (PG)–polyethylene imine (PEI) adhesive. As the MSN concentration increases, the adhesion strength to glass substrates undergoes an impressive fivefold improvement, reaching an outstanding 2.5 mPa. The adhesive forms an exceptionally strong bond, to the extent that the glass substrate fractures before joint failure. The comprehensive tests involving various polyphenols, polymers, and fillers reveal an intriguing phenomenon—the molecular structure of polyphenols significantly influences adhesive strength. Steric hindrance emerges as a crucial factor, regulating the balance between π‐cation and charge interactions, which significantly impacts the multicomponent assembly of polyphenol‐PEI‐MSN and, consequently, adhesive strength. This groundbreaking research opens new avenues for the development of novel biomimetic materials. [ABSTRACT FROM AUTHOR]

With the promising advances in nanomedicine, numerous strategies have emerged for the diagnosis and treatment of diseases. Among them, enzyme-based multifunctional nanocomposites have attracted a great deal of attention in the field of catalytic biomedicine. These nanocomposites with high catalytic activity are capable of converting low/non-toxic substances into therapeutic ones, thus realizing highly efficient, site-specific therapy with minimal side effects. Enzyme-based nanocomposites for catalytic biomedicine are mainly divided into three types: (i) natural-enzyme based nanocomposites; (ii) artificial-nanozyme based nanocomposites; and (iii) nanocomposites of natural-enzymes and nanozymes. In this review, we discuss key aspects of enzyme-based catalytic biomedicine, including the construction of enzyme-based nanocomposites, their unique properties and applications in catalytic biomedicine. We also highlight the main challenges faced in this field, and provide relevant guidelines for the rational design and extensive application of enzyme-based nanocomposites from our point of view. [ABSTRACT FROM AUTHOR]