Enhanced Ordering of Block Copolymer Thin Films upon Addition of Magnetic Nanoparticles

Konefał, Magdalena; Černoch, Peter; Patsula, Vitalii; Pavlová, Ewa; Dybal, Jiřı́; Załęski, Karol; Zhigunov, Alexander

doi:10.1021/acsami.0c21549

Cited by 10 publications

(14 citation statements)

References 72 publications

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“…The strongest binding was achieved with phosphate groups present, e.g., in penta(propylene glycol) methacrylate phosphate (Sipomer PAM-200). Sipomer PAM-200 is a heterobifunctional macromonomer built of five propylene oxide units and containing a reactive methacrylic group with a double bond that allows the radical polymerization with a monomer [ 15 , 16 ]. Moreover, Sipomer PAM-200 is terminated with a phosphate group able to interact with the iron oxide.…”

Section: Introductionmentioning

confidence: 99%

Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization

et al. 2021

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Uniformly sized magnetite nanoparticles (Dn = 16 nm) were prepared by a thermal decomposition of Fe(III) oleate in octadec-1-ene and stabilized by oleic acid. The particles were coated with Sipomer PAM-200 containing both phosphate and methacrylic groups available for the attachment to the iron oxide and at the same time enabling (co)polymerization of 2-(dimethylamino)ethyl methacrylate and/or 2-tert-butylaminoethyl methacrylate at two molar ratios. The poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) and poly[2-(dimethylamino)ethyl methacrylate-co-2-tert-butylaminoethyl methacrylate] [P(DMAEMA-TBAEMA)] polymers and the particles were characterized by 1H NMR spectroscopy, size-exclusion chromatography, transmission electron microscopy, dynamic light scattering, thermogravimetric analysis, magnetometry, and ATR FTIR and atomic absorption spectroscopy. The antimicrobial effect of cationic polymer-coated magnetite nanoparticles tested on both Escherichia coli and Staphylococcus aureus bacteria was found to be time- and dose-responsive. The P(DMAEMA-TBAEMA)-coated magnetite particles possessed superior biocidal properties compared to those of P(DMAEMA)-coated one.

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Section: Introductionmentioning

confidence: 99%

Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization

et al. 2021

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“…Available methodologies to fabricate nanostructured materials are categorized into two main groups, "top-down" and "bottom-up." [18][19][20] In the top-down approach, the material is structured by removal, division, or rearrangement of bulk material to create the desired structure. Top-down involves the miniaturization of common bulk fabrication processes, such as milling, grinding, machining, molding, and lithography.…”

Section: Top-down Versus Bottom-up Approaches For Nanostructure Fabri...mentioning

confidence: 99%

Nanofabrication of hybrid nanomaterials: Macroscopically aligned nanoparticles pattern via directed self‐assembly of block copolymers

Mendoza

Nirwan

Fahmi

2022

J of Applied Polymer Sci

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Periodic hybrid nanostructured materials based on aligned inorganic nanoparticles within self‐assembled copolymer matrixes aimed to harness the collective properties of generated functional nanomaterials. The nanoparticles are desirable for their useful magnetic, optical, catalytic, and electronic properties owed to the quantum confinement effect. For instance, gold, palladium and platinum as nanoparticles, have shown significant change in the physiochemical properties in comparison to their bulk materials. If the nanoparticles are aligned into well‐defined macroscopic periodic nanostructures in diverse of morphologies, the unique collective properties are significantly enhanced. These unique properties can be transformed to improve the performance of storage media, multi‐contact tracks solar panels and optoelectronic devices. Within this review, the nanofabrication tools will be presented as an alternative route to conventional top‐down methods for the fabrication of periodic nanostructured hybrid materials. A simple approach is reviewed to fabricate periodic nanostructured hybrid systems based on the directed assembly of inorganic nanoparticles into well‐defined periodic three‐dimensional nanostructures provided by the self‐assembling ability of block copolymers. The fabrications of varieties morphologies and the formation mechanism at different dimensions will be discussed as well as the characterization techniques. Finally, several applications of the proposed hybrid nanostructures are highlighted for the next generation of miniaturized devices.

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“…Analogously, He et al used the calcination of tetraethyl orthosilicate-infused BCP to produce mesostructured silicas . An alternative approach to ordered arrays of inorganic nanomaterials consists of blending presynthesized nanoparticles (NPs) with the BCP casting solution; such an approach has been demonstrated for iron oxide, , Au, PbS, and CdSe , NPs. Müller-Buschbaum et al explored the synthesis of transition metal oxide nanostructures (TiO 2 , ZnO, SnO 2 , and Fe 2 O 3 ) using the polystyrene- block -poly(ethylene oxide) (PS- b -PEO) , and polystyrene- block -poly(4-vinylpyridine) (PS- b -P4VP) , BCPs, monitoring the hybrid-film formation with in situ grazing-incidence small-angle X-ray scattering (GISAXS) measurements …”

Section: Introductionmentioning

confidence: 99%

Block Copolymer-Templated, Single-Step Synthesis of Transition Metal Oxide Nanostructures for Sensing Applications

Pula,

Leniart,

Krol

et al. 2023

ACS Appl. Mater. Interfaces

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The synthesis of transition metal oxide nanostructures, thanks to their high surface-to-volume ratio and the resulting large fraction of surface atoms with high catalytic activity, is of prime importance for the development of new sensors and catalytic materials. Here, we report an economical, time-efficient, and easily scalable method of fabricating nanowires composed of vanadium, chromium, manganese, iron, and cobalt oxides by employing simultaneous block copolymer (BCP) self-assembly and selective sequestration of metal−organic acetylacetonate complexes within one of the BCP blocks. We discuss the mechanism and the primary factors that are responsible for the sequestration and conformal replication of the BCP template by the inorganic material that is obtained after the polymer template is removed. X-ray photoelectron spectroscopy (XPS) and powder X-ray diffraction (PXRD) studies indicate that the metal oxidation state in the nanowires produced by plasma ashing the BCP template closely matches that of the precursor complex and that their structure is amorphous, thus requiring high-temperature annealing in order to sinter them into a crystalline form. Finally, we demonstrate how the developed nanowire array fabrication scheme can be used to rapidly pattern a multilayered iron oxide nanomesh, which we then used to construct a prototype volatile organic compound sensor.

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Enhanced Ordering of Block Copolymer Thin Films upon Addition of Magnetic Nanoparticles

Cited by 10 publications

References 72 publications

Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization

Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization

Nanofabrication of hybrid nanomaterials: Macroscopically aligned nanoparticles pattern via directed self‐assembly of block copolymers

Block Copolymer-Templated, Single-Step Synthesis of Transition Metal Oxide Nanostructures for Sensing Applications

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