Antimicrobial oligo(p-phenylene-ethynylene) film deposited by resonant infrared matrix-assisted pulsed laser evaporation

Yu, Qian; López, Gabriel P.; Ge, Wangyao

doi:10.1016/j.colsurfb.2014.01.033

Cited by 29 publications

(13 citation statements)

References 32 publications

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“…17 Emulsion-based RIR-MAPLE has already been applied to fabricate OSCs, 18,19 optical coatings, 20 and functional biosurfaces. 21,22 A schematic diagram of the emulsion-based RIR-MAPLE technique is shown in Figure 1. Compared to traditional MAPLE, emulsion-based RIR-MAPLE also combines aspects of PVD and solution-processing; yet, two important aspects of emulsion-based RIR-MAPLE stand in sharp contrast to traditional MAPLE.…”

Section: Introductionmentioning

confidence: 99%

Emulsion-Based RIR-MAPLE Deposition of Conjugated Polymers: Primary Solvent Effect and Its Implications on Organic Solar Cell Performance

McCormick

et al. 2016

ACS Appl. Mater. Interfaces

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Emulsion-based, resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) has been demonstrated as an alternative technique to deposit conjugated polymer films for photovoltaic applications; yet, a fundamental understanding of how the emulsion target characteristics translate into film properties and solar cell performance is unclear. Such understanding is crucial to enable the rational improvement of organic solar cell (OSC) efficiency and to realize the expected advantages of emulsionbased RIR-MAPLE for OSC fabrication. In this paper, the effect of the primary solvent used in the emulsion target is studied, both experimentally and theoretically, and it is found to determine the conjugated polymer cluster size in the emulsion as well as surface roughness and internal morphology of resulting polymer films. By using a primary solvent with low solubility-in-water and low vapor pressure, the surface roughness of deposited P3HT and PCPDTBT polymer films was reduced to 10 nm, and the efficiency of P3HT:PC 61 BM OSCs was increased to 3.2% (∼100 times higher compared to the first MAPLE OSC demonstration [Caricato, A. P.; et al. Appl. Phys. Lett. 2012, 100, 073306]). This work unveils the mechanism of polymer film formation using emulsion-based RIR-MAPLE and provides insight and direction to determine the best ways to take advantage of the emulsion target approach to control film properties for different applications.

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Section: Introductionmentioning

confidence: 99%

Emulsion-Based RIR-MAPLE Deposition of Conjugated Polymers: Primary Solvent Effect and Its Implications on Organic Solar Cell Performance

McCormick

et al. 2016

ACS Appl. Mater. Interfaces

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“…As can be seen in Figure 2a, both the M100 and P15M85 compositions showed excellent areal capacitance at around 20 mF/cm 2 when deposited on conductive silicon. These promising results are enabled by the RIR-MAPLE sequential deposition that blends film components on the nanoscale without phase segregation, such that multi-functional films can be achieved [29]. This nanoscale blending increases the film conductivity, while limiting percolation that may occur in nanoparticle-based composite films, and improves optical properties due to the presence of PFO [4].…”

Section: Resultsmentioning

confidence: 99%

Transparent MXene-Polymer Supercapacitive Film Deposited Using RIR-MAPLE

et al. 2020

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In this work, resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE), a novel deposition technique, was used to produce a transparent composite electrode of polyflourene (PFO) and two-dimensional (2D) Ti3C2Tx nanosheets, which are part of the broader MXene family of transition metal carbides and nitrides. This deposition technique offers a facile way to vary film composition in polymer/polymer and polymer/nanoparticle films. Through this method, composite PFO and MXene films were studied across six different compositions, enabling the identification of a film composition that exhibited excellent charge storage (above 10 mF/cm2) and transparency (over 75% transmittance) when used as a supercapacitor electrode material. Thus, RIR-MAPLE shows promise as a controllable and facile deposition technique for organic/inorganic composite films for use in transparent supercapacitors, as well as in other energy storage applications.

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“…Once again, the results correlate the killing capacity of these antimicrobials to their structural features. An effective method to prevent the formation of bacteria biofilms was reported by López and Stiff-Roberts’s [ 55 ] research group, who described the deposition of commercially available oligomers 22 ( Table 1 ) as thin films on solid surfaces and measured their antibacterial properties against E. coli bacteria, under UV exposure. These researchers used the innovative emulsion-based, resonant infrared, matrix-assisted pulsed laser evaporation (RIR-MARPLE) to form the OPE films, which guarantied enhanced bacterial attachment and biocidal efficiency compared to other film-deposition methodologies.…”

Section: Biocide Properties Of Opesmentioning

confidence: 99%

A Portrait of the OPE as a Biological Agent

2021

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Oligophenylene ethynylenes, known as OPEs, are a sequence of aromatic rings linked by triple bonds, the properties of which can be modulated by varying the length of the rigid main chain or/and the nature and position of the substituents on the aromatic units. They are luminescent molecules with high quantum yields and can be designed to enter a cell and act as antimicrobial and antiviral compounds, as biocompatible fluorescent probes directed towards target organelles in living cells, as labelling agents, as selective sensors for the detection of fibrillar and prefibrillar amyloid in the proteic field and in a fluorescence turn-on system for the detection of saccharides, as photosensitizers in photodynamic therapy (due to their capacity to highly induce toxicity after light activation), and as drug delivery systems. The antibacterial properties of OPEs have been the most studied against very popular and resistant pathogens, and in this paper the achievements of these studies are reviewed, together with almost all the other roles held by such oligomers. In the recent decade, their antifungal and antiviral effects have attracted the attention of researchers who believe OPEs to be possible biocides of the future. The review describes, for instance, the preliminary results obtained with OPEs against severe acute respiratory syndrome coronavirus 2, the virus responsible for the COVID-19 pandemic.

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Antimicrobial oligo(p-phenylene-ethynylene) film deposited by resonant infrared matrix-assisted pulsed laser evaporation

Cited by 29 publications

References 32 publications

Emulsion-Based RIR-MAPLE Deposition of Conjugated Polymers: Primary Solvent Effect and Its Implications on Organic Solar Cell Performance

Emulsion-Based RIR-MAPLE Deposition of Conjugated Polymers: Primary Solvent Effect and Its Implications on Organic Solar Cell Performance

Transparent MXene-Polymer Supercapacitive Film Deposited Using RIR-MAPLE

A Portrait of the OPE as a Biological Agent

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