Ideal coating materials for implants should be able to induce excellent osseointegration, which requires several important parameters, such as good bonding strength, limited inflammatory reaction, and balanced osteoclastogenesis osteogenesis, gain well-functioning coated with long-term life span after implantation. Bioactive elements, like Sr, Mg, Si, have been found play roles in regulating the biological responses. It is of great interest combine bioactive elements developing coatings on...

We report the synthesis of chemically asymmetric silica nanobottles (NBs) with a hydrophobic exterior surface (capped 3-chloropropyl groups) and hydrophilic interior for spatially selective cargo loading, application as nanoreactors nanomotors. The NBs, which have "flask bottle" shape an average diameter 350 nm opening ca. 100 nm, are prepared by anisotropic sol-gel growth in water/n-pentanol emulsion. Due to their properties, nanoparticles (NPs) or properties can be selectively loaded...

Abstract We report the synthesis of highly flexible and mechanically robust hybrid silica nanowires (NWs) which can be used as novel building blocks to construct superhydrophobic functional materials with three‐dimensional macroporous networks. The NWs, an average diameter 80 nm tunable length up 12 μm, are prepared by anisotropic deposition hydrolyzed tetraethylorthosilicate in water/ n ‐pentanol emulsions. A mechanistic investigation reveals that trimethoxy(octadecyl)silane introduced...

Abstract 1D carbon nanotubes have been widely applied in many fields, such as catalysis, sensing and energy storage. However, the long tunnel‐like pores relatively low specific surface area of often restrict their performance certain applications. Herein, a dual‐silica template‐mediated method to prepare nitrogen‐doped mesoporous (NMCTs) through co‐depositing polydopamine (both nitrogen precursors) silica nanoparticles (the porogen for mesopore formation) on nanowire template is proposed....

Nutrient element-based Sr₂ZnSi₂O₇ coatings induce favorable osteoimmunomodulation. Material chemistry of coating modulates the immune environment to osteogenic differentiation BMSCs by activating BMP2 signalling pathway.

Magnetic nanoparticles have been used as heating agents in CO₂ methanation under continuous flow catalyzed by nickel (Ni/SiRAlOx).

Monodisperse poly(vinylcaprolactam) (PVCL)-based capsules are prepared by precipitation polymerization of vinylcaprolactam (VCL) onto dimethyldiethoxysilane (DMDES) emulsion droplets and removal the DMDES templates ethanol. Polymer chains in shells can be cross-linked during disulfide-containing cross-linker N,N′-bis(acryloyl) cystamine, which endows with an excellent redox-labile property. Versatility this technique to prepare diverse components is demonstrated copolymerization methacrylic...

Angiogenesis is vital for bone fracture healing and plays a significant role in the fate of orthopedic implants. The growth maintenance new blood vessels at site patients essential, which promotes clinical outcome plasma sprayed Ti (PST) coated In order to endow PST coating with pro-angiogenic effects, deferoxamine-loaded chitosan-based hydrogel was fabricated on surface. Polydopamine-modified chitosan (CS/PDA) exhibited enhanced bonding strength coatings as evidenced by scratch test. CS/PDA...

Bioactive ceramic coatings on titanium (Ti) alloys play an important role in orthopedic applications. In this study, akermanite (Ca2MgSi2O7) bioactive are prepared through a plasma spraying technique. The bonding strength between the and Ti-6Al-4V substrates is around 38.7–42.2 MPa, which higher than that of sprayed hydroxyapatite (HA) reported previously. reveal distinct apatite-mineralization ability simulated body fluid. Furthermore, support attachment proliferation rabbit bone marrow...

Previous studies have shown that bredigite (Ca 7 MgSi 4 O 16 ) bioceramics possessed excellent biocompatibility, apatite-mineralization ability and mechanical properties. In this paper, the coating on Ti-6Al-4 V substrate was prepared by plasma spraying technique. The main compositions of were crystal phase with small parts amorphous phases. bonding strength to reached 49.8 MPa, which significantly higher than hydroxyapatite other silicate-based bioceramic coatings same method. After...

A hierarchically porous partially graphitic carbon (HPGC) membrane with three-dimensionally networked nanotunnels is prepared and applied as a monolithic matrix for electrochemical (bio)sensing. The walls of the (∼40–80 nm in diameter) are composed ordered mesopores (∼6.5 diameter). After modification polydopamine, HPGC can be decorated nanoparticles (i.e., Au NPs) subsequently functions three-dimensional enzyme glucose oxidase) immobilization. NPs accelerate electron transfer between...

Conventional and nanostructured WC–12Co coatings were deposited on 1Cr18Ni9Ti substrate using high velocity oxy-fuel spraying. The surface roughness microhardness of as sprayed measured, while the phase compositions microstructures feedstock powders corresponding respectively analysed by means X-ray diffraction scanning electron microscopy. Moreover, microsliding wear behaviour both sliding against Si 3 N 4 ball from room temperature to 500°C was evaluated under unlubricated condition with...

A major strategy to combat implant-associated infections is develop implant coatings with intrinsic antibacterial activity. Since hydroxyapatite (HAp) and antibiotic administration are commonly used in clinical settings, developing HAp-coated implants localized antibiotic-releasing properties has attracted popularity. Considering the metal species (Ag, Zn, Cu, etc.) metal–organic frameworks their drug delivery capacity, this study, a gentamicin-loaded zeolitic imidazolate framework-8...

Three-dimensional SERS substrates are prepared <italic>via</italic> assembly of silica nanowires into a macroporous network for supporting plasmonic metal NP deposition.

SiO2 nanotubes (NTs), with uniform diameter (∼25 nm) and tailored shell thickness (1–5 nm), featuring chemically asymmetric surfaces (a silane-functionalized exterior surface a negatively charged (−Si–O–) interior surface) are prepared by facile, template-free approach. Owing to their properties, positively cargoes can be selectively loaded high content into the NTs via electrostatic interaction. Mediated polyamidoamine dendrimers preassembled in NTs, different noble metal nanoparticles...

Abstract We report the synthesis of chemically asymmetric silica nanobottles (NBs) with a hydrophobic exterior surface (capped 3‐chloropropyl groups) and hydrophilic interior for spatially selective cargo loading, application as nanoreactors nanomotors. The NBs, which have “flask bottle” shape an average diameter 350 nm opening ca. 100 nm, are prepared by anisotropic sol–gel growth in water/n‐pentanol emulsion. Due to their properties, nanoparticles (NPs) or properties can be selectively...

Abstract We report the synthesis of highly flexible and mechanically robust hybrid silica nanowires (NWs) which can be used as novel building blocks to construct superhydrophobic functional materials with three‐dimensional macroporous networks. The NWs, an average diameter 80 nm tunable length up 12 μm, are prepared by anisotropic deposition hydrolyzed tetraethylorthosilicate in water/ n ‐pentanol emulsions. A mechanistic investigation reveals that trimethoxy(octadecyl)silane introduced...

Epsilon cobalt nanoparticles are underexplored in catalysis due to the fact that they accessible only through wet-chemical approaches, which employ ligands as stabilizing agents. Ligands may play a significant role determining structure and catalytic performances of nanoparticles, complicates their comparison catalysis. Here, we present cinnamaldehyde hydrogenation freestanding few-layer graphene-supported ε-Co hexagonal close-packed (hcp)-Co nanorods, stabilized by same ligands. We show...

Cobalt nanorods and cobalt nanoplatelets, prepared by the same organometallic route with two different metal precursors, were tested for first time in acceptor-less dehydrogenation of 2-octanol. The nature precursor determines not only nanoparticle morphology but also their surface chemistry. While showed high conversions (up to 85% after 24 h) complete selectivity toward 2-octanone concomitant molecular hydrogen production, nanoplatelets practically inactive. Here, we show that this...