Gold nanoparticles immobilized on halloysite nanotubes for spatially-temporally localized photohyperthermia

Kornilova, Anastasiia V.; Kuralbayeva, Galiya A.; Stavitskaya, Anna; Gorbachevskii, M. V.; Карпухина, О.В.; Lysenko, Ivan; Pryadun, V.V.; Новиков, А. А.; Vasiliev, A. N.; Timoshenko, V. Yu.

doi:10.1016/j.apsusc.2021.150671

Cited by 9 publications

(10 citation statements)

References 25 publications

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“…59 A remarkable photothermal effect with an increase in the initial temperature of about 0.5 1C min À1 was observed for HNTs/ Au-NPs' aqueous suspension under relatively low excitation intensity, while the same photoexcitation of bare HNTs' aqueous suspension did not result in any noticeable heating. 66 In vitro experiments with Paramecium caudatum unicellular organisms have revealed strong suppression of the cell viability after photoexcitation (Fig. 4C).…”

Section: Plasmonic Nanomaterialsmentioning

confidence: 91%

“…HNTs with immobilized monodisperse Au-NPs ( d = 10 nm) exhibit a sharp peak of the LSPR with a maximum at 535, while the spectrum of the sample with size-distributed NPs is broadened and characterized by a lower extinction value. 66 Moreover, the extinction spectra of HNT with attached metal NPs of high surface density exhibit an additional long-wavelength shoulder (see Fig. 4B), which can be related to the LSPR of the NP's grouping ensembles.…”

Section: Halloysite Based Photoactive Nanomaterialsmentioning

confidence: 93%

“…59 Recently, Au NPs were stabilized on the surface of aminosilane modified halloysite. 66 This material was studied as a potential hyperthermia material. In this work Au NPs were obtained by injecting 1 mL of tetrachloroauric acid (HAuCl4, 25 mM) into a mixed solution containing 150 mL of sodium citrate (SC, 2.2 mM) and 0.1 mL of tannic acid (TA, 2.5 mM) at 70 1C as shown in ref.…”

Section: Plasmonic Nanomaterialsmentioning

confidence: 99%

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Prokaryotic and eukaryotic toxicity of halloysite decorated with photoactive nanoparticles

et al. 2022

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Section: Plasmonic Nanomaterialsmentioning

confidence: 91%

Section: Halloysite Based Photoactive Nanomaterialsmentioning

confidence: 93%

Section: Plasmonic Nanomaterialsmentioning

confidence: 99%

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Prokaryotic and eukaryotic toxicity of halloysite decorated with photoactive nanoparticles

et al. 2022

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“…Several reports have been considered for applying clay minerals for energy storage applications in different energy storage devices, such as membranes, electrolytes and electrodes. Halloysite nanotubes (HNTs) are a tubular clay with structural details of 50 nm in diameter, 600–900 nm in length and 15 nm for the inner lumen 5 , 6 . Halloysite is a distinctive material that is constructed by rolling kaolin sheets into multiwalled mesoporous nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Decoration of green synthesized S, N-GQDs and CoFe2O4 on halloysite nanoclay as natural substrate for electrochemical hydrogen storage application

Ghiyasiyan-Arani

Salavati‐Niasari

2022

Sci Rep

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Halloysite nanotubes (HNTs) with high active sites are used as natural layered mineral supports. Sulfur- and nitrogen-co doped graphene quantum dots (S, N-GQDs) as conductive additive and CoFe2O4 as the electrocatalyst was decorated on a HNT support to design an effective and environmentally friendly active material. Herein, an eco-friendly CoFe2O4/S, N-GQDs/HNTs nanocomposite is fabricated via a green hydrothermal method to equip developed hydrogen storage sites and to allow for quick charge transportation for hydrogen storage utilization. The hydrogen storage capacity of pure HNTs was 300 mAhg−1 at a current density of 1 mA after 20 cycles, while that of S, N-GQD-coated HNTs (S, N-GQDs/HNTs) was 466 mAhg−1 under identical conditions. It was also conceivable to increase the hydrogen sorption ability through the spillover procedure by interlinking CoFe2O4 in the halloysite nanoclay. The hydrogen storage capacity of the CoFe2O4/HNTs was 450 mAhg−1, while that of the representative designed nanocomposites of CoFe2O4/S, N-GQDs/HNTs was 600 mAhg−1. The halloysite nano clay and treated halloysite show potential as electrode materials for electrochemical energy storage in alkaline media; in particular, ternary CoFe2O4/S, N-GQD/HNT nanocomposites prove developed hydrogen sorption performance in terms of presence of conductive additive, physisorption, and spillover mechanisms.

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“…Consequently, HNTs have emerged as a prominent nanomaterial for various biomedical applications, including tableting [ 25 ], drug delivery [ 22 , 26 , 27 , 28 , 29 ], tissue engineering [ 27 ], bioimaging [ 30 , 31 ], anti-cancer therapy [ 32 , 33 ], and antimicrobial solutions [ 34 ]. The latter three have been often realized by utilizing HNTs as ‘mothership’ carriers for cargoes ranging from quantum dots [ 35 , 36 ] through metal oxides NPs to precious metals [ 19 , 34 ], including gold [ 37 , 38 , 39 , 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Gold Nanorod-Incorporated Halloysite Nanotubes Functionalized with Antibody for Superior Antibacterial Photothermal Treatment

et al. 2022

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The global spread of antibiotic-resistant strains, and the need to protect the microflora from non-specific antibiotics require more effective and selective alternatives. In this work, we demonstrate for the first time a superior antibacterial photothermal effect of plasmonic gold nanorods (AuNRs) via their incorporation onto natural clay halloysite nanotubes (HNTs), which were functionalized with anti-E. coli antibodies (Ab-HNTs). AuNRs were incorporated onto the Ab-HNTs through a facile freeze–thaw cycle, and antibody integrity following the incorporation was confirmed via infrared spectroscopy and fluorescence immunolabeling. The incorporation efficiency was studied using UV-Vis absorption and transmission electron microscopy (TEM). Mixtures of E. coli and AuNR-Ab-HNTs hybrids or free AuNRs were irradiated with an 808 nm laser at 3–4 W cm−2, and the resulting photothermal antibacterial activity was measured via plate count. The irradiated AuNR-Ab-HNTs hybrids exerted an 8-fold higher antibacterial effect compared to free AuNR under 3.5 W cm−2; whereas the latter induced a 6 °C-higher temperature elevation. No significant antibacterial activity was observed for the AuNR-Ab-HNTs hybrid against non-target bacteria species (Serratia marcescens and Staphylococcus epidermidis). These findings are ascribed to the localization of the photothermal ablation due to the binding of the antibody-functionalized clay to its target bacteria, as supported through TEM imaging. In the future, the HNTs-based selective carriers presented herein could be tailored with other antibacterial nanoparticles or against another microorganism via the facile adjustment of the immobilized antibody.

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Gold nanoparticles immobilized on halloysite nanotubes for spatially-temporally localized photohyperthermia

Cited by 9 publications

References 25 publications

Prokaryotic and eukaryotic toxicity of halloysite decorated with photoactive nanoparticles

Prokaryotic and eukaryotic toxicity of halloysite decorated with photoactive nanoparticles

Decoration of green synthesized S, N-GQDs and CoFe2O4 on halloysite nanoclay as natural substrate for electrochemical hydrogen storage application

Gold Nanorod-Incorporated Halloysite Nanotubes Functionalized with Antibody for Superior Antibacterial Photothermal Treatment

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