Atomic layer deposition of platinum thin films on anodic aluminium oxide templates as surface-enhanced Raman scattering substrates

Zhang, Wenjun; Qiu, Teng; Qu, Xin-Ping; Chu, Paul K.

doi:10.1016/j.vacuum.2012.06.015

Cited by 16 publications

(9 citation statements)

References 26 publications

(22 reference statements)

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“…Extensive SERS applications rely on sensitive, reproducible, and selective SERS substrates. So far, many explorations have been performed to prepare SERS substrates, such as the synthesis of silver and gold nanoparticles using chemical reduction, atomic layer deposition (ALD), chemical vapor deposition (CVD), interface self-assembled nanoparticles, lithography, and so on. Nanoparticles in suspension-based SERS substrates suffer from hard-to-control particle aggregation, which negatively influences SERS reproducibility.…”

Section: Resultsmentioning

confidence: 99%

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Song

Fang

et al. 2020

ACS Sens.

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Surface-enhanced Raman scattering (SERS) is a powerful technique for sensitive detection, but it normally has difficulty in multicomponent detection in a complex system, especially for simultaneous analysis of mixture of heavy metal ions. In this work, a simple paper chromatography tandem SERS (PC-SERS) separation/detection platform is proposed by ion-sputtering gold on a filter paper. Based on SEM results, the great electromagnetic field inside nanogaps of Au nanoislands on the paper surface is evaluated with FDTD simulation. It is found that the PC-SERS platform has good uniformity (RSD = 10.12%) and long-time stability. The as-prepared PC-SERS platform was applied to efficiently separate and detect a mixture of pesticides (MG, MB, and CV) in pond water without any pretreatment process, and the limits of detection (LODs) were down to 10 nM. As a crucial application for food safety, several heavy metal ions such as Cd 2+ , Cu 2+ , and Ni 2+ in grinded rice were successfully detected by the PC-SERS method taking advantage of the sandwich structure based on 4-mercaptobenzoic acid (4-MBA) molecules, which were modified onto sputtering the Au filter paper and gold nanoparticles (Au NPs) to link metal ions and acted as Raman signal molecules. All the LODs for metal ions were down to 1 μM. Due to the easiness of fabrication, good reproducibility, and simple pretreatment step, the PC-SERS platform holds promise in multicomponent detection in a real sample.

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Section: Resultsmentioning

confidence: 99%

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Song

Fang

et al. 2020

ACS Sens.

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“…Atomic layer deposition (ALD) is an excellent deposition technique based on self-limiting surface chemical reactions to coat substrates with highly uniform and conformal thin films under precise thickness controls in atomic scales [1][2][3][4]. ALD is derived from chemical vapor deposition (CVD) where in an ALD each gaseous precursor is alternately pulsed into the reactor; and a binary reaction a þ b !…”

Section: Introductionmentioning

confidence: 99%

Investigating atomic layer deposition characteristics in multi-outlet viscous flow reactors through reactor scale simulations

Shaeri

Jen

Yuan

et al. 2015

International Journal of Heat and Mass Transfer

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“…The adenosine detection limit based on G/CuNPs is also much lower than that of other reported SERS adenosine detection or other methods for adenosine detection. [56][57][58][59] These results indicate that ultrasensitive detection of adenosine can be achieved based on the G/CuNPs. The SERS intensity of the vibration located at 847 and 1337 cm -1 versus the concentration of adenosine are also plotted in Figure 6d Figure S3, Supporting Information).…”

mentioning

confidence: 99%

Graphene/Cu Nanoparticle Hybrids Fabricated by Chemical Vapor Deposition As Surface-Enhanced Raman Scattering Substrate for Label-Free Detection of Adenosine

Man

Jiang

et al. 2015

ACS Appl. Mater. Interfaces

159

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We present a graphene/Cu nanoparticle hybrids (G/CuNPs) system as a surface-enhanced Raman scattering (SERS) substrate for adenosine detection. The Cu nanoparticles wrapped by a monolayer graphene shell were directly synthesized on flat quartz by chemical vapor deposition in a mixture of methane and hydrogen. The G/CuNPs showed an excellent SERS enhancement activity for adenosine. The minimum detected concentration of the adenosine in serum was demonstrated as low as 5 nM, and the calibration curve showed a good linear response from 5 to 500 nM. The capability of SERS detection of adenosine in real normal human urine samples based on G/CuNPs was also investigated and the characteristic peaks of adenosine were still recognizable. The reproducible and the ultrasensitive enhanced Raman signals could be due to the presence of an ultrathin graphene layer. The graphene shell was able to enrich and fix the adenosine molecules, which could also efficiently maintain chemical and optical stability of G/CuNPs. Based on the G/CuNPs system, the ultrasensitive SERS detection of adenosine in varied matrices was expected for the practical applications in medicine and biotechnology.

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Atomic layer deposition of platinum thin films on anodic aluminium oxide templates as surface-enhanced Raman scattering substrates

Cited by 16 publications

References 26 publications

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Investigating atomic layer deposition characteristics in multi-outlet viscous flow reactors through reactor scale simulations

Graphene/Cu Nanoparticle Hybrids Fabricated by Chemical Vapor Deposition As Surface-Enhanced Raman Scattering Substrate for Label-Free Detection of Adenosine

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