Morphological Control: Properties and Applications of Metal Nanostructures

Chupradit, Supat; M, Kavitha M; Suksatan, Wanich; Ansari, Mohammad Javed; Mashhadani, Zuhair I. Al; Kadhim, Mustafa M.; Mustafa, Yasser Fakri; Shafik, Shafik S.; Kianfar, Ehsan

doi:10.1155/2022/1971891

Cited by 27 publications

(8 citation statements)

References 156 publications

(197 reference statements)

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“…The femtosecond laser writing technique was employed to “write” Au surfaces with antibacterial-adhesion properties [ 44 ], which resulted in 1D-rod-like structures of less than 6 µm width, formed by 10 nm elements. The 3D dual-scale structures of polyaniline-gold micro nanopillars were obtained and coated with an antibacterial copolymer (4-vinylbenzyl chloride and 2-(dimethylamino)ethyl methacrylate) [ 61 ]. In this case, the best anti-adhesive properties were exhibited by 500 nm–1 µm distanced pillars with heights below 100 nm.…”

Section: Resultsmentioning

confidence: 99%

Laser Direct Writing of Dual-Scale 3D Structures for Cell Repelling at High Cellular Density

Păun

Călin

Popescu

et al. 2022

IJMS

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The fabrication of complex, reproducible, and accurate micro-and nanostructured interfaces that impede the interaction between material’s surface and different cell types represents an important objective in the development of medical devices. This can be achieved by topographical means such as dual-scale structures, mainly represented by microstructures with surface nanopatterning. Fabrication via laser irradiation of materials seems promising. However, laser-assisted fabrication of dual-scale structures, i.e., ripples relies on stochastic processes deriving from laser–matter interaction, limiting the control over the structures’ topography. In this paper, we report on laser fabrication of cell-repellent dual-scale 3D structures with fully reproducible and high spatial accuracy topographies. Structures were designed as micrometric “mushrooms” decorated with fingerprint-like nanometric features with heights and periodicities close to those of the calamistrum, i.e., 200–300 nm. They were fabricated by Laser Direct Writing via Two-Photon Polymerization of IP-Dip photoresist. Design and laser writing parameters were optimized for conferring cell-repellent properties to the structures, even for high cellular densities in the culture medium. The structures were most efficient in repelling the cells when the fingerprint-like features had periodicities and heights of @200 nm, fairly close to the repellent surfaces of the calamistrum. Laser power was the most important parameter for the optimization protocol.

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Section: Resultsmentioning

confidence: 99%

Laser Direct Writing of Dual-Scale 3D Structures for Cell Repelling at High Cellular Density

Păun

Călin

Popescu

et al. 2022

IJMS

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“…The antimicrobial effect of cationic compounds has been attributed to the reaction of cations with anionic phospholipids in the microbial cell wall, which increases permeability and ultimately cell death (Kianfar, 2021b;Syah et al, 2021). The surface of cationic activities has antibacterial properties due to the strength of the strong electrostatic bond with the anionic wall of the bactericidal cell (Majdi et al, 2021;Bokov et al, 2021;Ansari et al, 2022;Chupradit et al, 2022). The formation of anion/cation bonds leads to the hydrophobicity of the cell wall and prevents the absorption of water (one of the vital factors of the microorganism) and ultimately the multiplication and growth of bacteria.…”

Section: Antimicrobial Materials Affect Microorganismsmentioning

confidence: 99%

Antimicrobial finishing of textiles using nanomaterials

Abdul-Reda Hussein,

Mahmoud,

Alaziz

et al. 2024

Braz. J. Biol.

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Metals, such as copper and silver, can be extremely toxic to bacteria at exceptionally low concentrations. Because of this biocidal activity, metals have been widely used as antimicrobial agents in a multitude of applications related with agriculture, healthcare, and the industry in general. A large number of microorganisms live in the human environment. if the balance of these creatures in nature is disturbed, the health of the individual and society will be threatened due to the production and emission of unpleasant odors and the reduction of health standards. The presence of microorganisms on textiles can cause adverse effects such as discoloration or staining on textiles, decomposition of fibrous materials, reduced strength, and eventually decay of textiles. Most fibers and polymers do not show resistance to the effects of microbes and by providing growth factors for microorganisms such as the right temperature and humidity, nutrients from sweat and fat from skin glands, dead skin cells as well as materials used in the stage of finishing the textiles causes the rapid growth and spread of various microbes. With the advent of nanotechnology, various industries and human daily life underwent changes. In recent years, increasing research on nanoparticles has led to the production of textiles with greater efficiency and added value. These modified textiles prevent the spread of unpleasant odors, the spread, and transmission of diseases. This article reviews the basics and principles of antimicrobial tetiles, as well as a brief overview of antimicrobial materials and nanostructures with antimicrobial properties.

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Section: Synthesis Of Agnwsmentioning

confidence: 99%

“…Another method for the synthesis of AgNWs is the template-assisted method [ 26 , 28 ]. This method involves the use of a template, such as a porous anodized alumina (PAA) template or a polycarbonate (PC) template, to guide the growth of AgNWs ( Figure 3 ) [ 26 ]. The procedure involves coating the template with a thin layer of AgNWs using a chemical reduction method or a physical vapor deposition method, followed by the removal of the template by etching or dissolution [ 29 ].…”

Section: Synthesis Of Agnwsmentioning

confidence: 99%

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Versatile Applications of Silver Nanowire-Based Electrodes and Their Impacts

Choi

Schlenker

et al. 2023

Micromachines

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Indium tin oxide (ITO) is currently the most widely used material for transparent electrodes; however, it has several drawbacks, including high cost, brittleness, and environmental concerns. Silver nanowires (AgNWs) are promising alternatives to ITO as materials for transparent electrodes owing to their high electrical conductivity, transparency in the visible range of wavelengths, and flexibility. AgNWs are effective for various electronic device applications, such as touch panels, biosensors, and solar cells. However, the high synthesis cost of AgNWs and their poor stability to external chemical and mechanical damages are significant challenges that need to be addressed. In this review paper, we discuss the current state of research on AgNW transparent electrodes, including their synthesis, properties, and potential applications.

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Morphological Control: Properties and Applications of Metal Nanostructures

Cited by 27 publications

References 156 publications

Laser Direct Writing of Dual-Scale 3D Structures for Cell Repelling at High Cellular Density

Laser Direct Writing of Dual-Scale 3D Structures for Cell Repelling at High Cellular Density

Antimicrobial finishing of textiles using nanomaterials

Versatile Applications of Silver Nanowire-Based Electrodes and Their Impacts

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