Substrate-independent, chemical-durable, and homogeneous coatings are attracting great interest because of their potential applications in various fields. Surface coatings based on polydopamine and metal–phenol networks have been widely investigated. Phytic acid (PA), a plant-derived compound with six phosphate groups, can coordinate with multivalent ions to generate metal–phytic acid complex coatings. However, the formation of the coatings generally proceeds in a discrete step with a thickness of only about 8 nm via conventional methods. Herein, the continuous assembly of PA–FeIII coatings has been proposed by employing an oxidation-mediated assembly strategy. PA coordinates with an FeII precursor to form soluble complexes, which are then converted into insoluble PA–FeIII aggregates continuously, enabling coating thickness to be controllable and time-dependent. The formation and the kinetic growth process of the coatings are investigated systematically. Highly visible colors induced by the thin-film interference effect have been observed on silicon wafers and tailored by modulating the coating thickness. Moreover, benefiting from the superior chemical resistance and superhydrophilicity of the PA–FeIII coatings, potential applications in membrane modification for oil/water emulsion separation have been demonstrated. The modified membranes exhibit both high flux and separation efficiency. This work provides a feasible route to form effective PA–FeIII coatings and expands the versatile platform of metal–phytic acid surface coatings.

ZnS QDs as a catalyst can catalyze luminol–NBS system CL, based on Trp and Tyr can inhibit this system CL intensity, we were designed a rapid and sensitive sensor for determination of Trp and Tyr.

Chain-like Fe3O4@RF–Ag microstructures with excellent antibacterial and catalytic activities were constructed by a simple two-step route.

ZnSe QDs can induce chemiluminescence in a luminol–KIO4 system, which can then be suppressed by rutin. We designed a rapid and sensitive sensor based on this phenomenon for the determination of rutin.

Dendritic Cu–M (M = Fe/Co/Ni) microstructures with good catalytic performances were successfully prepared through a rapid electrodeposition route.

Porous materials have attracted great attention in recent years, and a variety of surface modification techniques have been developed. Herein, a layer of non-noble metal nickel was deposited onto mine-formaldehyde sponges by an electroless depositing process which uses poly(4-vinylpyridine) as an assisted functional layer and Ag nanoparticles as catalytic seeds for the metal growth. The hydrophobic metallized sponges can selectively adsorb oils from oil−water mixtures and achieve dynamic oil−water separation. The as-made metallized sponges also feature good mechanical stability, flexibility, and conductivity. A piezoresistive sensor based on the metallized sponges is fabricated, which exhibits excellent sensing performance with sensitivity of 212.9 kPa −1 in the range of less than 2 kPa. The sensors can be further applied to monitor dynamic postures of human body. Moreover, the metallized sponges show great potential as electromagnetic interference shielding and thermal conductive materials. This work provides a facile and efficient way to introduce a non-noble metal to porous materials toward multifunctional applications in fields of oil−water separation, wearable electronics, and electromagnetic shielding equipment.

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Because of the serious impact on the seismic performance, the joint connection form becomes a critical problem in the prefabricated building. Built on the dry connection, this paper proposes a detachable and recyclable bolt-steel plate connection design for the fabricated structure. Compared to the cast-in-situ method, the biggest advantage of the proposed design scheme lies in convenient construction. The construction process shows that the joint devices both are detachable and recyclable. Adopting a supported beam, the proposed form is simulated with the finite element method (FEM). The deformation results verify the effectiveness of the proposed connection design. The work provides a novel idea for further test research on the fabricated structure.