Ultrathin tin oxide layer-wrapped gold nanoparticles induced by laser ablation in solutions and their enhanced performances

Bao, Haoming; Wang, Yingying; Zhang, Hongwen; Zhao, Qian; Liu, Guangqiang; Cai, Weiping

doi:10.1016/j.jcis.2016.08.065

Cited by 16 publications

(18 citation statements)

References 45 publications

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“…Typically, the responses to H 2 S gas (1-3 ppm) at room temperature for these two NPs build films are illustrated in Figure 12a. For the pure SnO 2 NPs' film, the response to H 2 S at room temperature was not recoverable [25]. As a result, the pure SnO 2 NPs' film cannot be used at room temperature for detection of H 2 S gas.…”

Section: Fast Response At Room Temperaturementioning

confidence: 99%

“…In total, controllable and flexible methods to facilely and one-pot prepare the ultrathin and uniform oxide-coated plasmonic metal NPs free of contaminations are still expected. R e c e n t l y ,s o m ei m p o r t a n tp r o g r e s s e sh a v eb e e nm a d ei nf a b r i c a t i o no fu l t r a t h i na n du n iform oxide-wrapped plasmonic NPs [24,25]. In this chapter, we introduce a universal strategy for wrapping NPs based on colloidal electrostatic attraction and self-assembly on the plasmonic NPs.…”

Section: Introductionmentioning

confidence: 99%

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Ultrathin Oxide Wrapping of Plasmonic Nanoparticles via Colloidal Electrostatic Self-Assembly and their Enhanced Performances

Bao¹,

Zhang²,

Liu³

et al. 2018

Plasmonics

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Ultrathin and uniform oxide layer-wrapped plasmonic nanoparticles (NPs) have been expected in the fields of light energy conversion and optical sensing fields. In this chapter, we proposed a universal strategy to prepare such core-shell plasmonic NPs based on colloidal electrostatic attraction and self-assembly procedures. Based on the self-assembly strategy, laser ablation of metal targets in liquid medium was conducted at room temperature to one-pot fabricate the oxide-wrapped plasmonic NPs. It demonstrates that a series of core-shell nanostructured NPs such as Au

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Section: Fast Response At Room Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrathin Oxide Wrapping of Plasmonic Nanoparticles via Colloidal Electrostatic Self-Assembly and their Enhanced Performances

Bao¹,

Zhang²,

Liu³

et al. 2018

Plasmonics

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“…Various kinds of optical sensors based on plasmonic resonance of nanostructures, including SPR, SERS, and metal-enhanced fluorescence, have been reported over the past decade [32]. SERS has been developed not only as a fingerprint spectral technology [33] but also as a strong analytical method that exhibits numerous detections of hazardous compounds, such as 2-naphthalene thiol [34], H 2 S [35], ricin B chain in human blood [36], VOCs [37], polychlorinated biphenyl (PCB) [38], biomolecules [39], hexachlorocyclohexane pesticides [40], organic pollutants [41], and microplastics [42]. Since SERS-based sensor methods have been exhibited as an efficient analytical tool for identifying target molecules, nanostructured material substrate usages have attracted the considerable attention from many researchers.…”

Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Sensing of Semi-Volatile Organic Compounds by Plasmonic Nanostructures

Son

Jang

et al. 2021

Nanomaterials

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Facile detection of indoor semi-volatile organic compounds (SVOCs) is a critical issue to raise an increasing concern to current researchers, since their emissions have impacted the health of humans, who spend much of their time indoors after the recent incessant COVID-19 pandemic outbreaks. Plasmonic nanomaterial platforms can utilize an electromagnetic field to induce significant Raman signal enhancements of vibrational spectra of pollutant molecules from localized hotspots. Surface-enhanced Raman scattering (SERS) sensing based on functional plasmonic nanostructures has currently emerged as a powerful analytical technique, which is widely adopted for the ultra-sensitive detection of SVOC molecules, including phthalates and polycyclic aromatic hydrocarbons (PAHs) from household chemicals in indoor environments. This concise topical review gives updated recent developments and trends in optical sensors of surface plasmon resonance (SPR) and SERS for effective sensing of SVOCs by functionalization of noble metal nanostructures. Specific features of plasmonic nanomaterials utilized in sensors are evaluated comparatively, including their various sizes and shapes. Novel aptasensors-assisted SERS technology and its potential application are also introduced for selective sensing. The current challenges and perspectives on SERS-based optical sensors using plasmonic nanomaterial platforms and aptasensors are discussed for applying indoor SVOC detection.

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“…It was found that the Au@SnO 2 NP-built film shows stronger SERS effect to organic phosphor molecules (phenyl phosphonic acid) and excellent performance in gas sensing to H 2 S at room temperature compared with the bare AuNP and pure SnO 2 NP films, respectively. 40 Dell’Aglio et al reported the mechanisms and processes of pulsed laser ablation in liquids (PLALs) during NP production. In this work, PLAL for the formation of NPs was studied by applying different time-resolved diagnostic techniques, such as optical emission spectroscopy, shadowgraph, laser scattering imaging, and DP-LAL (double-pulse LAL) for laser-induced breakdown detection.…”

Section: Introductionmentioning

confidence: 99%

“…The process of the formation of Au@SnO 2 NPs involves two steps: the laser ablation-induced formation of AuNPs and subsequent Coulomb effect-based colloidal attachment and self-assembly on the AuNPs. It was found that the Au@SnO 2 NP-built film shows stronger SERS effect to organic phosphor molecules (phenyl phosphonic acid) and excellent performance in gas sensing to H 2 S at room temperature compared with the bare AuNP and pure SnO 2 NP films, respectively . Dell’Aglio et al reported the mechanisms and processes of pulsed laser ablation in liquids (PLALs) during NP production.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Laser-Patterned Silver/Graphene Oxide Hybrid SERS Sensor for Explosive Detection

et al. 2019

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We demonstrate an ultrafast laser-ablated hierarchically patterned silver nanoparticle/graphene oxide (AgNP/GO) hybrid surface-enhanced Raman scattering (SERS) substrate for highly sensitive and reproducible detection of an explosive marker 2,4-dinitrotoluene (2,4-DNT). A hierarchical laser-patterned silver sheet (Ag–S) is achieved by ultrafast laser ablation in air with pulse energies of 25, 50, and 100 μJ. Multiple laser pulses at a wavelength of 800 nm and a pulse repetition rate of 50 fs at 1 kHz are directly focused on Ag–S to produce and deposit AgNPs onto Ag–S. The surface morphology of ablated Ag–S was evaluated using atomic force microscopy, optical profilometry, and field emission scanning electron microscopy (FESEM). A rapid increase in the ablation rate with increasing laser energy was observed. Selected area Raman mapping is performed to understand the intensity and size distribution of AgNPs on Ag–S. Further, GO was spin-coated onto the AgNPs produced by ultrafast ablation on Ag–S. The hierarchical laser-patterned AgNP/GO hybrid structure was characterized using FESEM, high-resolution transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and Raman spectroscopy. Further, hierarchical laser-patterned AgNP/GO hybrid structures have been utilized as SERS-active substrates for the selective detection of 2,4-DNT, an explosive marker. The developed SERS-active sensor shows good stability and high sensitivity up to picomolar (pM) concentration range with a Raman intensity enhancement of ∼1010 for 2,4-DNT. The realized enhancement of SERS intensity is due to the cumulative effect of GO coated on Ag–S as a proactive layer and AgNPs produced by ultrafast ablation.

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Ultrathin tin oxide layer-wrapped gold nanoparticles induced by laser ablation in solutions and their enhanced performances

Cited by 16 publications

References 45 publications

Ultrathin Oxide Wrapping of Plasmonic Nanoparticles via Colloidal Electrostatic Self-Assembly and their Enhanced Performances

Ultrathin Oxide Wrapping of Plasmonic Nanoparticles via Colloidal Electrostatic Self-Assembly and their Enhanced Performances

Surface-Enhanced Raman Sensing of Semi-Volatile Organic Compounds by Plasmonic Nanostructures

Hierarchical Laser-Patterned Silver/Graphene Oxide Hybrid SERS Sensor for Explosive Detection

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