Fabrication of nanostructured antibacterial film derived from oligoglucosamine in ultraviolet nanoimprint lithography using a solvent-permeable template

Takei, Satoshi; Yasuda, Kaori

doi:10.35848/1882-0786/abb9ea

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…1,51 ■ CONCLUSION Here, we report the first systematic study of the antibacterial performance of a range of polymeric nanopatterned films possessing sub-100 nm topographical features. The nanofabrication of micronanostructured topographies for their physical antibacterial performance using nanoimprint technologies has mostly resulted in nanopillar topographies with feature widths and height greater than 100 nm 16,48 (Table 2). We show the fabrication of high aspect ratio surface protrusions (pillars) that demonstrate free-standing, highly reproducible nanopatterns on a large scale (10s of cm).…”

Section: ■ Discussionmentioning

confidence: 99%

Nanopillar Polymer Films as Antibacterial Packaging Materials

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Saita²,

Murata³

et al. 2022

ACS Appl. Nano Mater.

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This work presents a comprehensive analytical survey of the antibacterial and antibiofouling properties of sub-100-nanometer scale nanopatterned polymers fabricated using scalable industrial processes that are directly applicable for commercial use. Regular nanopillar arrays of 60 nm height and 60 nm pitch were fabricated on polyethylene terephthalate (PET), polypropylene (PP), acrylic, and nylon polymer films using nanoimprint lithography. Analyses of the influence of material type on antibacterial performance revealed that the nanoscale patterns produced using acrylic and nylon polymers were most suitable as anti-infective nanostructured materials. Further assessment of the influence of the nanopattern geometric parameters on the antibacterial efficacy of acrylic and nylon materials revealed the superlative pattern for inactivating and repelling both Gram-positive and Gram-negative bacteria. Acrylic nanostructured films consisting of nanopillars with a height of 60 nm and pitch of 30 nm, respectively, demonstrated distinctly superior antimicrobial and antibiofouling behavior toward both Gram-negative Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus bacterial species.

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Section: ■ Discussionmentioning

confidence: 99%

Nanopillar Polymer Films as Antibacterial Packaging Materials

Linklater

Saita²,

Murata³

et al. 2022

ACS Appl. Nano Mater.

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“…As seen in the research of applied physics and applied chemistry, materials-based science and technology are indispensable for solving various problems that modern society faces. In particular, it is necessary to develop functional materials and systems to solve environmental, [1][2][3][4][5] energy, [6][7][8][9][10][11] and medical problems [12][13][14][15][16] arising from social demands. Traditionally, chemistry and material science have been playing major roles to produce substances simply exhibiting good physical properties.…”

Section: Background Story From Nanotechnology To Nanoarchitectonics I...mentioning

confidence: 99%

Nanoarchitectonics Intelligence with atomic switch and neuromorphic network system

Tsuchiya

Nakayama

Ariga

2022

Appl. Phys. Express

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Emerging concept of "nanoarchitectonics" has been proposed as a way to apply the progress of nanotechnology to materials science. In the introductory parts, we briefly explain the progress in understanding materials through nanotechnology, the overview of nanoarchitectonics, the effects of nanoarchitectonics on the development of functional materials and devices, and outline of nanoarchitectonics intelligence as a main subject of this review paper. In the following sections, we explain the process of constructing intelligent devices based on atomic switches, in which the behavior of atoms determines the device functions, by integrating them with nanoarchitectonics. The contents are categorized into (i) basic operation of atomic switch, (ii) artificial synapse, (iii) neuromorphic network system, (iv) hetero-signal conversion, (v) decision making device, and (vi) atomic switch in practical uses. The atomic switches were originally relatively simple ON/OFF binary-type electrical devices, but their potential as multi-level resistive memory devices for artificial synapses and neuromorphic applications

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Mechano-Bactericidal Surfaces: Mechanisms, Nanofabrication, and Prospects for Food Applications

Cheng

Franklin

et al. 2023

Annu. Rev. Food Sci. Technol.

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Mechano-bactericidal (MB) nanopatterns have the ability to inactivate bacterial cells by rupturing cellular envelopes. Such biocide-free, physicomechanical mechanisms may confer lasting biofilm mitigation capability to various materials encountered in food processing, packaging, and food preparation environments. In this review, we first discuss recent progress on elucidating MB mechanisms, unraveling property–activity relationships, and developing cost-effective and scalable nanofabrication technologies. Next, we evaluate the potential challenges that MB surfaces may face in food-related applications and provide our perspective on the critical research needs and opportunities to facilitate their adoption in the food industry.

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Fabrication of nanostructured antibacterial film derived from oligoglucosamine in ultraviolet nanoimprint lithography using a solvent-permeable template

Cited by 3 publications

References 32 publications

Nanopillar Polymer Films as Antibacterial Packaging Materials

Nanopillar Polymer Films as Antibacterial Packaging Materials

Nanoarchitectonics Intelligence with atomic switch and neuromorphic network system

Mechano-Bactericidal Surfaces: Mechanisms, Nanofabrication, and Prospects for Food Applications

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