Ultrasonic fabrication of flexible antibacterial ZnO nanopillar array film

Lee, Kwang Se; Kim, Chi Hyun; Jeong, Soon Woo; Song, Younseong; Bae, Nam Ho; Lee, Seok Jae; Lee, Kyoung G.

doi:10.1016/j.colsurfb.2018.06.007

Cited by 23 publications

(15 citation statements)

References 39 publications

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“…Lysodeikticus and sulfate-reducing bacteria at about 200 µg/mL of PNG where MgAl-LDH was just a carrier to sustainably release PNG. Interestingly, zinc ions and ZnO particles have been widely reported to have antibacterial activity [11,12]. Moreover, calcined Zncontaining LDHs showed certain antibacterial activity, depending on the heating condition during the preparation, mainly due to the formed ZnO [13,14].…”

Section: Introductionmentioning

confidence: 99%

High and long-term antibacterial activity against Escherichia coli via synergy between the antibiotic penicillin G and its carrier ZnAl layered double hydroxide

Sultanbawa

et al. 2019

Colloids and Surfaces B: Biointerfaces

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Section: Introductionmentioning

confidence: 99%

High and long-term antibacterial activity against Escherichia coli via synergy between the antibiotic penicillin G and its carrier ZnAl layered double hydroxide

Sultanbawa

et al. 2019

Colloids and Surfaces B: Biointerfaces

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“…The bare NPA only showed 51% efficiency stemming from the topological bacteria‐killing effect. [ 42 ] However, this antibacterial performance of the bare NPA is insufficient for IOL applications.…”

Section: Methodsmentioning

confidence: 99%

“…The antibacterial effects were mainly attributed to the quaternary ammonium species in the copolymer thin film and nanotopological effect from NPA. Coupled with the well‐known antibacterial activity of the highly aligned nanostructure in NPA, [ 26–28,42 ] the pVD thin film that contained QACs also showed an advantageous antibacterial performance. The negatively charged bacterial membrane interacted with the positively charged QACs to induce destabilization or a rupture of the bacterial cell membrane.…”

Section: Methodsmentioning

confidence: 99%

Antibacterial Nanopillar Array for an Implantable Intraocular Lens

Choi

Song

Lim

et al. 2020

Adv Healthcare Materials

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Postsurgical intraocular lens (IOL) infection caused by pathogenic bacteria can result in blindness and often requires a secondary operation to replace the contaminated lens. The incorporation of an antibacterial property onto the IOL surface can prevent bacterial infection and postoperative endophthalmitis. This study describes a polymeric nanopillar array (NPA) integrated onto an IOL, which captures and eradicates the bacteria by rupturing the bacterial membrane. This is accomplished by changing the behavior of the elastic nanopillars using bending, restoration, and antibacterial surface modification. The combination of the polymer coating and NPA dimensions can decrease the adhesivity of corneal endothelial cells and posterior capsule opacification without causing cytotoxicity. An ionic antibacterial polymer layer is introduced onto an NPA using an initiated chemical vapor deposition process. This improves bacterial membrane rupture efficiency by increasing the interactions between the bacteria and nanopillars and damages the bacterial membrane using quaternary ammonium compounds. The newly developed ionic polymer‐coated NPA exceeds 99% antibacterial efficiency against Staphylococcus aureus, which is achieved through topological and physicochemical surface modification. Thus, this paper provides a novel, efficient strategy to prevent postoperative complications related to bacteria contamination of IOL after cataract surgery.

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“…In addition, a titanium oxide nanopillar array (NPA) was developed to confirm its advanced bactericidal activity and develop an understanding of the mechanistic processes that lead to bacterial death via penetration of the bacterial cellular membrane by NPAs [14]. Although superior antibacterial performance of inorganic-based nanostructures has been verified, their high stiffness and inflexibility make them more vulnerable to shear forces and limit the expansion of their antibacterial applicability [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Sasidharan et al reported 3D polymer-metal-carbon hybrid materials to remove biological contaminants and provide antibacterial performance [20]. In addition, coating or implantation of nanomaterials, including zinc and copper oxide, on polymers has demonstrated excellent reliability and antibacterial performance [15,21,22]. In addition, our group has studied how pathogenic bacteria interact with 3D hierarchical nanostructures and their capability for early-stage detection of pathogens and antibacterial performance [23].…”

Section: Introductionmentioning

confidence: 99%

3D Hierarchical Polyaniline–Metal Hybrid Nanopillars: Morphological Control and Its Antibacterial Application

et al. 2021

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Effective and reliable antibacterial surfaces are in high demand in modern society. Although recent works have shown excellent antibacterial performance by combining unique hierarchical nanotopological structures with functional polymer coating, determining the antibacterial performance arising from morphological changes is necessary. In this work, three-dimensional (3D) hierarchical polyaniline–gold (PANI/Au) hybrid nanopillars were successfully fabricated via chemical polymerization (i.e., dilute method). The morphology and structures of the PANI/Au nanopillars were controlled by the reaction time (10 min to 60 h) and the molar concentrations of the monomer (0.01, 0.1, and 1 M aniline), oxidant (0.002, 0.0067, 0.01, and 0.02 M ammonium persulfate), and acid (0.01, 0.1, 1, and 2 M perchloric acid). These complex combinations allow controlling the hierarchical micro- to nanostructure of PANI on a nanopillar array (NPA). Furthermore, the surface of the 3D PANI/Au hierarchical nanostructure can be chemically treated while maintaining the structure using initiated chemical vapor deposition. Moreover, the excellent antibacterial performance of the 3D PANI/Au hierarchical nanostructure (HNS) exceeds 99% after functional polymer coating. The excellent antibacterial performance of the obtained 3D PANI/Au HNS is mainly because of the complex topological and physicochemical surface modification. Thus, these 3D PANI/Au hierarchical nanostructures are promising high-performance antibacterial materials.

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Ultrasonic fabrication of flexible antibacterial ZnO nanopillar array film

Cited by 23 publications

References 39 publications

High and long-term antibacterial activity against Escherichia coli via synergy between the antibiotic penicillin G and its carrier ZnAl layered double hydroxide

High and long-term antibacterial activity against Escherichia coli via synergy between the antibiotic penicillin G and its carrier ZnAl layered double hydroxide

Antibacterial Nanopillar Array for an Implantable Intraocular Lens

3D Hierarchical Polyaniline–Metal Hybrid Nanopillars: Morphological Control and Its Antibacterial Application

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