Redox-Active Tyrosine-Mediated Peptide Template for Large-Scale Single-Crystalline Two-Dimensional Silver Nanosheets

Lee, Hyungdong; Jang, Hyungseok; Cho, Dae‐Hyun; Lee, Jae-Hyun; Seong, Baekhoon; Kang, Giho; Park, Yong-Sun; Nam, Ki Tae; Lee, Jun Young; Byun, Doyoung

doi:10.1021/acsnano.9b07392

Cited by 17 publications

(9 citation statements)

References 28 publications

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“…% was accomplished for PET fibers owing to the higher surface area offered by PET fibers as compared to PET films (Tables S1 and S2, Supporting Information) . Importantly, high-resolution Ag 3d XPS spectra of the AgNP-coated PET films or fibers showed two sharp XPS peaks separated by 6 eV at binding energies of ∼374 and ∼368 eV, respectively, corresponding to the Ag 3d 3/2 and Ag 3d 5/2 core levels of metallic Ag (Tables S1 and S2, and Figure b,d). − As-formed AgNP layers on the UVO-activated PET films were mechanically robust. Rubbing or wiping did not result in any noticeable scratches on the film.…”

Section: Resultsmentioning

confidence: 99%

Ultraviolet–Ozone-Activation-Driven Ag Nanoparticles Grown on Plastic Substrates for Antibacterial Applications

Murali

Lee

Modigunta

et al. 2022

ACS Appl. Nano Mater.

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A simple, cheap, and environment-friendly method is developed to fabricate antibacterial plastic films or fibers. We report a robust method to decorate silver nanoparticles (AgNPs) on plastics or fibers, which is achieved easily by dipping ultraviolet–ozone (UVO)-treated plastic films or fibers into a silver nitrate solution under mild conditions. Apart from silver nitrate, neither a stabilizer nor a reducing agent is required, and no post-treatment is required to reduce the Ag+ ions into AgNPs. The only process required is the pre-treatment of the plastic substrates using UVO under an ambient condition for their surface activation. Most importantly, the AgNP-coated plastics show a robust adhesion ability and high bactericidal activity, more than 99% toward both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Because the AgNP-decoration on plastic substrates by UVO-treatment is environmentally benign, highly reproducible, economically beneficial, and universally acceptable for many kinds of plastic substrates, it could be widely utilized for producing AgNP-coated plastics suitable for biological and environmental applications in both academics and industries.

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Section: Resultsmentioning

confidence: 99%

Ultraviolet–Ozone-Activation-Driven Ag Nanoparticles Grown on Plastic Substrates for Antibacterial Applications

Murali

Lee

Modigunta

et al. 2022

ACS Appl. Nano Mater.

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“…Silver ions were incorporated layer-by-layer into the assembled peptide and subsequently reduced into single-crystalline Ag nanosheets at room temperature (Figure ). Silver nanosheets were also prepared through a displacement reaction using Cu 2 O crystals and hollow Cu microcages as templates …”

Section: Materials Developments Of 2d Metal Nanosheetsmentioning

confidence: 99%

Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Zhang

Yang

2023

Chem. Rev.

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This paper reviews recent studies on the preparation of two-dimensional (2D) metal nanostructures, particularly nanosheets. As metal often exists in the high-symmetry crystal phase, such as face centered cubic structures, reducing the symmetry is often needed for the formation of low-dimensional nanostructures. Recent advances in characterization and theory allow for a deeper understanding of the formation of 2D nanostructures. This Review firstly describes the relevant theoretical framework to help the experimentalists understand chemical driving forces for the synthesis of 2D metal nanostructures, followed by examples on the shape control of different metals. Recent applications of 2D metal nanostructures, including catalysis, bioimaging, plasmonics, and sensing, are discussed. We end the Review with a summary and outlook of the challenges and opportunities in the design, synthesis, and application of 2D metal nanostructures.

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“…demonstrated a redox-active peptide template-assisted method to synthesize multilayered single-crystalline fcc Ag nanosheets. In their reaction, a tyrosine-rich α-helical peptide was used to reduce the Ag ions at the water/air interface, resulting in the formation of single-crystalline Ag nanosheets [ 81 ]. Yue et al.…”

Section: Synthesis Of 2d Metal Nanomaterialsmentioning

confidence: 99%

Wet-chemical synthesis of two-dimensional metal nanomaterials for electrocatalysis

Zhai

et al. 2021

National Science Review

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Two-dimensional (2D) metal nanomaterials have gained ever-growing research interests owing to their fascinating physicochemical properties and promising applications, especially in the field of electrocatalysis. In this review, we briefly introduce the recent advances in the wet-chemical synthesis of 2D metal nanomaterials. Subsequently, the catalytic performances of 2D metal nanomaterials towards a variety of electrochemical reactions are illustrated. Finally, we summarize the current challenge and highlight our perspectives on preparing high-performance 2D metal electrocatalysts.

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Redox-Active Tyrosine-Mediated Peptide Template for Large-Scale Single-Crystalline Two-Dimensional Silver Nanosheets

Cited by 17 publications

References 28 publications

Ultraviolet–Ozone-Activation-Driven Ag Nanoparticles Grown on Plastic Substrates for Antibacterial Applications

Ultraviolet–Ozone-Activation-Driven Ag Nanoparticles Grown on Plastic Substrates for Antibacterial Applications

Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Wet-chemical synthesis of two-dimensional metal nanomaterials for electrocatalysis

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