Concave gold nanocubes on Al-6063 alloy as a simple and efficient SERS substrate

Martinez-Garcia, Monica Monserrat; Cardoso-Ávila, Pablo Eduardo; Pichardo‐Molina, J. L.

doi:10.1016/j.colsurfa.2016.01.030

Cited by 22 publications

(19 citation statements)

References 37 publications

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“…For instance, LOD reported for CV by SERS on MnO 2 /Au hybrid nanowall film was about 10 nM [33]. LOD reported in the assay on concave cubes on Al-6063 alloy (processed for oxide removal) for CV was about 0.1 nM [22].…”

Section: Performance Of Aunps@al Foil In Detection Of Self-madementioning

confidence: 99%

“…Very recently, it was reported that the average EF for single silver nanoparticles (AgNPs) modified with 2-methoxythiophenol (MOTP) and drop-casted on gold film is just about twice as high as average EF of MOTP at AgNPs on Al film (5.0 × 10 6 versus 2.2 × 10 6 ) [21]. Another group reported SERS of Rhodamine 6G, Rose Bengal, and crystal violet on the substrate of concave gold nanocubes on Al-6063 alloy [22].…”

Section: Introductionmentioning

confidence: 99%

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Commercial Gold Nanoparticles on Untreated Aluminum Foil: Versatile, Sensitive, and Cost-Effective SERS Substrate

Gudun

Elemessova

Khamkhash

et al. 2017

Journal of Nanomaterials

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We introduce low-cost, tunable, hybrid SERS substrate of commercial gold nanoparticles on untreated aluminum foil (AuNPs@AlF). Two or three AuNP centrifugation/resuspension cycles are proven to be critical in the assay preparation. The limits of detection (LODs) for 4-nitrobenzenethiol (NBT) and crystal violet (CV) on this substrate are about 0.12 nM and 0.19 nM, respectively, while maximum analytical SERS enhancement factors (AEFs) are about 107. In comparative assays LODs for CV measured on AuNPs@Au film and AuNPs@glass are about 0.35 nM and 2 nM, respectively. The LOD for melamine detected on AuNPs@ Al foil is 27 ppb with 3 orders of magnitude for linear response range. Overall, AuNPs@AlF demonstrated competitive performance in comparison with AuNPs@ Au film substrate in SERS detection of CV, NBT, and melamine. To check the versatility of the AuNPs@AlF substrate we also detected KNO3 with LODs of 0.7 mM and SERS EF around 2 × 103, which is on the same order with SERS EF reported for this compound in the literature.

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Section: Performance Of Aunps@al Foil In Detection Of Self-madementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Commercial Gold Nanoparticles on Untreated Aluminum Foil: Versatile, Sensitive, and Cost-Effective SERS Substrate

Gudun

Elemessova

Khamkhash

et al. 2017

Journal of Nanomaterials

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“…where I SERS and I R are the intensities in the SERS and normal Raman spectra of Cr(VI), respectively, and C R and C SERS are Cr(VI) concentrations in normal and SERS samples related to the molecules adsorbed on the substrate, respectively [30]. The EF of the FA substrate for Cr(VI) was 3.8 × 10 5 with a detection limit of 1 M ( Fig.…”

Section: Fat For Sers Detection Of Cr(vi)mentioning

confidence: 99%

Multifunctional satellite Fe3O4-Au@TiO2 nano-structure for SERS detection and photo-reduction of Cr(VI)

Sun

Zhang

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…13 Concave gold nanocubes at the surface of Al-6063 alloy were used as the SERS substrate for the detection of Rhodamine 6G, Rose Bengal and crystal violet. 14 Recently we reported a relatively inexpensive and simple method for a fabrication of hybrid SERS substrate using commercial gold nanoparticles drop-casted on untreated and unmodified Al foil. 15 This substrate can be prepared in just 1 or 2 h using only micro-centrifuge as equipment.…”

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confidence: 99%

Detection of Paracetamol in Water and Urea in Artificial Urine with Gold Nanoparticle@AI Foil Cost-efficient SERS Substrate

et al. 2018

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We demonstrated that a cost-efficient, easy to prepare, hybrid SERS substrate-gold nanoparticles (AuNPs) on untreated Al foil (AlF) can effectively detect pharmaceuticals, such as paracetamol and clinical biomarkers, like urea in artificial urine. The limit of detection (LOD) for paracetamol on AuNPs on AlF is superior (0.1 vs. 1 mM ) to the LOD reported for SERS detection of paracetamol in the literature. For SERS detection of urea in urine, AuNPs on both Al foil and Au film performed much better than AuNPs on glass, in terms of the concentration range, linearity and LOD. However, assay on AuNPs on AlF showed a better semi-logarithmic trendline with R 2 = 0.98 than an assay on AuNPs on Au film with R 2 = 0.94. They have comparable sensitivity with LOD 0.024 and 0.017 M, respectively. The limit of quantification (LOQ) of the former is 0.026 M, which makes it sufficient for the quantification of urea in urine at both normal and pathophysiological (0.03 -0.15 M) concentration.

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Concave gold nanocubes on Al-6063 alloy as a simple and efficient SERS substrate

Cited by 22 publications

References 37 publications

Commercial Gold Nanoparticles on Untreated Aluminum Foil: Versatile, Sensitive, and Cost-Effective SERS Substrate

Commercial Gold Nanoparticles on Untreated Aluminum Foil: Versatile, Sensitive, and Cost-Effective SERS Substrate

Multifunctional satellite Fe3O4-Au@TiO2 nano-structure for SERS detection and photo-reduction of Cr(VI)

Detection of Paracetamol in Water and Urea in Artificial Urine with Gold Nanoparticle@AI Foil Cost-efficient SERS Substrate

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