One step route to the fabrication of arrays of TiO₂nanobowls via a complementary block copolymer templating and sol–gel process

A Review on Less-common Nanostructures

“…[219,220] A facile route for the generation of 2D ordered, large-area, liftable, and patterned polyaniline nanobowl monolayer containing Au nanoparticles was demonstrated with the monolayer self-assembled polystyrene spheres at the aqueous/air interface as template, using tetrachloroauric acid as an oxidizing agent for the polymerization of aniline in aqueous solution. [221] Other nanobowls are known for such metals as Ni, [222] Al, [223] Au, [224] oxides ZnO, [225] TiO 2 , [226] or magnetic arrays Co [227] [228] Their main applications include gas-and biosensor ability, lithography, and catalysis. Hollow nanobottle structures are known, for example for ZnO ( Figure 37) and SiO 2 .…”

Enhanced Photophysical Properties of Nanopatterned Titania Nanodots/Nanowires upon Hybridization with Silica via Block Copolymer Templated Sol-Gel Process

“…Of the versatile aspects of BCPs, fabrication of organic-inorganic nanocomposite structures using BCPs as structure directing agents is a well known application. For instance, inorganic sol-gel precursors [23][24][25][26][27] and inorganic nanoparticles [28,29] can be incorporated into one of the constituent blocks having a similar polarity to generate an inorganic nanostructure that is essentially the replica or modulated nanostructure of the initial BCP [30][31][32]. Silica/BCP films with various mesostructures of large characteristic length scales were synthesized through evaporation-induced self-assembly, where amphiphilic polystyrene-block-poly(ethyleneoxide) (PS-b-PEO) diblock copolymer and triblock copolymer (P123) were used as the structure-directing agents [33].…”

“…Silica/BCP films with various mesostructures of large characteristic length scales were synthesized through evaporation-induced self-assembly, where amphiphilic polystyrene-block-poly(ethyleneoxide) (PS-b-PEO) diblock copolymer and triblock copolymer (P123) were used as the structure-directing agents [33]. We recently reported that TiO 2 nanostructures with tailored morphology could be prepared by one-step spin coating a common solution composed of PS-b-PEO and sol-gel precursors with controlled composition, and compared their photocatalytic efficiency [31,34]. However, none of the previous studies on TiO 2 nanostructures based on the combination of BCP and sol-gel chemistry explored their hybridization with SiO 2 for the modification of TiO 2 properties.…”

Nanoscale Architectures for Smart Bio-Interfaces: Advances and Challenges

“…Today's design, tailoring of complex hybrid systems, is possible via cross-disciplinary, synergistically coupled approaches in biomolecular engineering, smart processing or nanofabrication. The impressive set of inorganic-organic hybrid nanomaterials span a wide spectrum of properties, yielding innovative applications in areas such as plasmonics, nanoelectronics, health, energy, the environment among others (e.g., Ruiz-Hitzky, Ariga & Lvov, 2007;Knoll et al, 2004;Li et al, 2007;Nakamura, Katagiri & Koumoto, 2010;Peng et al, 2007Peng et al, , 2008Stemmler et al, 2009;Vivero-Escoto & Huang, 2011). Today the main hybrid materials that find applications in industry are based mostly on the association between metal oxides or metal-oxo polymers and organic molecules or macromonomers of all kinds including bio-components.…”