Controlling the various phase-separated patterns in mixed monolayers of non-amphiphilic fluorinated derivatives and hydrogenated comb copolymers

Shioda, Yoshiki; Maeda, Momo; Fujimori, Atsuhiro

doi:10.1016/j.colsurfa.2023.131475

Cited by 6 publications

(2 citation statements)

References 41 publications

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“…In this experiment, the spreading solution was passed through a glass rod such that the solvent fell below the water surface, leaving the film molecules on the surface [42] . Previously, this method was used to form stable Langmuir monolayers from poorly soluble polymers, such as trifluoroacetic acid [43] . The monolayer obtained using DMSO exhibited the most homogeneous particle morphology, without any observable effects from the extremely small amount of solvent, indicating that DMSO is suitable for the formation of mixed monolayers of nanoclay.…”

Section: Resultsmentioning

confidence: 99%

Creation of Organic/Inorganic Hybrids in Two‐Dimensional Organized Films Using Natural Materials and Control of Their Morphology

Nakada,

Sugita,

Rumon

et al. 2024

ChemistrySelect

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Starch, an insoluble natural polymer, can be spread into a Langmuir monolayer on the surface of water as amylodextrin by solubilization, where it forms a spherical single‐particle layer at the air–water interface. In this study, we fabricated a two‐dimensional mixed monolayer from soluble starch and organo‐modified montmorillonite and attempted to control its morphology by varying the mixing ratio. The behavior of the organo‐modified montmorillonite was dependent on the spreading solvent and miniaturization was possible using a suitable solvent for spreading insoluble starch. Although both materials formed phase‐separated systems, nearly homogeneous particle layers were formed in some cases because of clay miniaturization. However, X‐ray photoelectron spectroscopy showed that the clay components remained intact and a rectangular morphology derived from aluminosilicate was observed in the mixed film with a high clay ratio. Functionalization as a mixed film clearly demonstrated the hydrophilic properties imparted by the starch particles and the selective adsorption of biomolecules on the clay surface.

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Section: Resultsmentioning

confidence: 99%

Creation of Organic/Inorganic Hybrids in Two‐Dimensional Organized Films Using Natural Materials and Control of Their Morphology

Nakada,

Sugita,

Rumon

et al. 2024

ChemistrySelect

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“…To date, molecular recognition studies of interfaces have been conducted using Langmuir/Langmuir–Blodgett (LB) films 31–33 of amphiphilic comb copolymers containing diamino‐ s ‐triazine rings with DNA adsorption ability 34 (Figure 1B). This research aimed to control morphogenesis by the patterned adsorption of DNA and expanded into adsorption studies on phase‐separated mixed files with fluorinated compounds 35,36 . The DNA adsorbed onto the patterned template maintained its second‐order structure with a helical double strand and retained its ability to fluorescent 37 …”

Section: Introductionmentioning

confidence: 99%

Rearrangement and morphological transition of DNA on adsorbent templates of hydrocarbon/fluorocarbon phase‐separated monolayers

Maeda,

Shioda,

Fujimori

2023

Polymer Engineering & Sci

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A phase‐separated template prepared from a mixed monolayer of fluorinated long‐chain s‐triazine derivatives and comb copolymers containing s‐triazine rings was morphologically controlled by DNA adsorption. The adsorbed morphology of DNA was formed through a morphological transition process at the air/water interface rather than by maintaining the shape of the phase‐separated template. Dot‐like domains, circular domains, centrally protruding domains, network morphologies, and even co‐continuous surface morphologies of DNA were obtained. The phase‐separated monolayer used as a template depends on the mixed ratio of the fluorocarbon and hydrocarbon copolymer components, the copolymerization ratio of the hydrocarbon copolymers, and the chain length of the fluorinated long‐chain s‐triazine derivative, and various morphological transitions occur. The DNA introduced into the sub‐phase was selectively adsorbed onto the s‐triazine ring‐containing comb copolymer, and the adsorbed DNA assembly exhibited a morphological transition based on concerted interactions. Furthermore, by utilizing a fluorescent probe molecule, evidence of DNA morphogenesis itself was supported by its emission/quenching behavior.Highlights Morphological control of the DNA assembly was attained. Immobilization of DNA assemblies on phase‐separated templates was achieved. Preparation of patterned templates was realized by copolymers a fluorinated derivative. Adsorption of DNA to the diamino‐s‐triazine ring was achieved by hydrogen bonding. A rearrangement of the DNA assemblies on the template was achieved.

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Formation of two-dimensional mixed monolayers of integrated-cellulose nanofibers and starch nanoparticles using cellulose acetate and soluble starch

Sugita,

Nakada,

Rumon

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Controlling the various phase-separated patterns in mixed monolayers of non-amphiphilic fluorinated derivatives and hydrogenated comb copolymers

Cited by 6 publications

References 41 publications

Creation of Organic/Inorganic Hybrids in Two‐Dimensional Organized Films Using Natural Materials and Control of Their Morphology

Creation of Organic/Inorganic Hybrids in Two‐Dimensional Organized Films Using Natural Materials and Control of Their Morphology

Rearrangement and morphological transition of DNA on adsorbent templates of hydrocarbon/fluorocarbon phase‐separated monolayers

Formation of two-dimensional mixed monolayers of integrated-cellulose nanofibers and starch nanoparticles using cellulose acetate and soluble starch

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