Towards the development of solid-state platform optical sensors: aggregation of gold nanoparticles on polyurethane foam

Apyari, V. V.; Arkhipova, Viktoria V.; Gorbunova, M. V.; Волков, П. А.; Isachenko, A. I.; Дмитриенко, С. Г.; Zolotov, Yury A.

doi:10.1016/j.talanta.2016.09.037

Cited by 24 publications

(13 citation statements)

References 37 publications

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“…The treatment of ME/PDMS foams with the HAuCl4 solutions induced an ev color of the foams, from the light gray of ME/PDMS (Figure 2a,b) to red (Fi indication of the presence of Au NPs [33][34][35]. As shown by the photographs ( optical micrographs (Figure 2d), the coloration of the foams is homogeneous, wh that the expected presence of Au NPs is throughout the porous structure of the f hand, the treatment of the ME/PDMS foams with Na2PdCl4 solutions also induc with the ME/PDMS/Pd foams showing a uniform dark grey-blackish color (Figure presence of Pd NPs [36].…”

Section: Me/pdms/au and Me/pdms/pd Foamsmentioning

confidence: 99%

“…The treatment of ME/PDMS foams with the HAuCl 4 solutions induced an evident change in the color of the foams, from the light gray of ME/PDMS (Figure 2a,b) to red (Figure 2c,d), a clear indication of the presence of Au NPs [33][34][35]. As shown by the photographs (Figure 2c) and the optical micrographs (Figure 2d), the coloration of the foams is homogeneous, which is an indication that the expected presence of Au NPs is throughout the porous structure of the foams.…”

Section: Me/pdms/au and Me/pdms/pd Foamsmentioning

confidence: 99%

“…However, the functionalization of polymer foams with other noble metal NPs, such as Au or Pd, and therefore their potential use in different applications, is less studied. In the case of Au NPs, Apyari et al [33] immersed polyurethane foams in dispersions of Au NPs, promoting their adsorption into the surfaces of the foam and using them as an optical sensor of organic compounds. Calcagnile et al [34] produced polydimethylsiloxane (PDMS) sponges using hydrogel calcium alginate beads as a template for the porous structure.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, Suhaimi et al [37] produced nanocomposite polysulfone membranes for gas separation by adding a Pd precursor to the polymer formulation prior to the fabrication of the membranes. Among these works, only Apyari et al [33] and Desforges et al [36] proposed functionalization procedures that do not require the modification of the production route of the porous substrates. Moreover, the approach proposed by Apyari et al [33] employed commercially available polymer foams, facilitating, thus, the scale-up of the developed materials and their wide applicability.…”

Section: Introductionmentioning

confidence: 99%

“…Among these works, only Apyari et al [33] and Desforges et al [36] proposed functionalization procedures that do not require the modification of the production route of the porous substrates. Moreover, the approach proposed by Apyari et al [33] employed commercially available polymer foams, facilitating, thus, the scale-up of the developed materials and their wide applicability.…”

Section: Introductionmentioning

confidence: 99%

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Melamine Foams Decorated with In-Situ Synthesized Gold and Palladium Nanoparticles

et al. 2020

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A versatile and straightforward route to produce polymer foams with functional surface through their decoration with gold and palladium nanoparticles is proposed. Melamine foams, used as polymeric porous substrates, are first covered with a uniform coating of polydimethylsiloxane, thin enough to assure the preservation of their original porous structure. The polydimethylsiloxane layer allows the facile in-situ formation of metallic Au and Pd nanoparticles with sizes of tens of nanometers directly on the surface of the struts of the foam by the direct immersion of the foams into gold or palladium precursor solutions. The effect of the gold and palladium precursor concentration, as well as the reaction time with the foams, to the amount and sizes of the nanoparticles synthesized on the foams, was studied and the ideal conditions for an optimized functionalization were defined. Gold and palladium contents of about 1 wt.% were achieved, while the nanoparticles were proven to be stably adhered to the foam, avoiding potential risks related to their accidental release.

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Section: Me/pdms/au and Me/pdms/pd Foamsmentioning

confidence: 99%

Section: Me/pdms/au and Me/pdms/pd Foamsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Melamine Foams Decorated with In-Situ Synthesized Gold and Palladium Nanoparticles

et al. 2020

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Nonconventional Fluorescent Non‐Isocyanate Polyurethane Foams for Multipurpose Sensing Applications

Mahapatra,

Bourguignon,

Grignard

et al. 2024

Angewandte Chemie

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Fluorescent foams with interconnected pores are attractive for the detection and quantification of various products. However, many fluorescent probes are suffering from aggregation‐caused fluorescence quenching in their solid/aggregated state, are costly, and/or not straightforward to incorporate in foams, limiting their utility for this application. Herein, non‐isocyanate polyurethane foams, prepared by the simple water‐induced self‐blowing process, present a nonconventional fluorescence behaviour, i.e. they are intrinsically fluorescent with a multicolor emission without requiring ex‐situ traditional fluorescent probes. These foams demonstrate utility for capturing‐sensing gaseous formaldehyde (an emblematic indoor air pollutant), as well as for detecting and quantifying various metal ions (Fe2+, Cu2+, Fe3+, Hg2+). They are also able to selectively sense tetracycline antibiotic in a ratiometric way with a high sensitivity. By exploiting the unique multicolor photoluminescent foam properties, a smartphone‐compatible device is used for the facile antibiotic quantification. This nonconventional fluorescence behaviour is discussed experimentally and theoretically, and is mainly based on clusteroluminescence originating from multiple hydrogen bonding and hetero‐atomic sub‐luminophores, thus from aggregation‐induced emission luminogens that are naturally present in the foams. This work illustrates that easily accessible non‐conventional fluorescent NIPU foams characterized by a modular emission wavelength have an enormous potential for multiple substrates detection and quantification.

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Nonconventional Fluorescent Non‐Isocyanate Polyurethane Foams for Multipurpose Sensing Applications

Mahapatra,

Bourguignon,

Grignard

et al. 2024

Angew Chem Int Ed

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Towards the development of solid-state platform optical sensors: aggregation of gold nanoparticles on polyurethane foam

Cited by 24 publications

References 37 publications

Melamine Foams Decorated with In-Situ Synthesized Gold and Palladium Nanoparticles

Melamine Foams Decorated with In-Situ Synthesized Gold and Palladium Nanoparticles

Nonconventional Fluorescent Non‐Isocyanate Polyurethane Foams for Multipurpose Sensing Applications

Nonconventional Fluorescent Non‐Isocyanate Polyurethane Foams for Multipurpose Sensing Applications

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