Application of Cu/porous silicon nanocomposite screen printed sensor for the determination of formaldehyde

Hajilari, Fatemeh; Farhadi, Khalil; Eskandari, Habibollah; Allahnouri, Farzad

doi:10.1016/j.electacta.2020.136751

Cited by 19 publications

(7 citation statements)

References 69 publications

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“…Telah dikembangkan beberapa penelitian menggunakan modifikasi elektroda untuk deteksi formaldehida diantaranya glassy carbon electrode modifikasi AuNPs@PPy [8], glassy carbon electrode menggunakan nickel modified electrodes [1]. glassy carbon electrode modifikasi Nickel-Palladium nanoparticle [9], screen-printed carbon electrode modifikasi Cu/PS nanocomposite [10].…”

Section: Pengantarunclassified

Deteksi Formaldehida Menggunakan Glassy Carbon Electrode (GCE) Modifikasi Lapisan Tipis Emas secara Voltametri Siklik

Maharani,

Sari,

Dewata

et al. 2024

Periodic

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The formaldehyde was found as one of the toxic and mutagenic products. Long-term exposure will harm the health of the human body. This study aims to detect formaldehyde developed on an electrochemical sensor using Glassy Carbon Electrode (GCE) modified with a thin layer of gold as the working electrode by cyclic voltammetry. Electrode modification was carried out by electrodeposition of Au potential-sweeping on electrodes known as Au/GCE electrodes. The resulting electrode has high conductivity and excellent catalytic activity because it is able to provide a large peak current response. In this study, the peak current obtained is sharper, the sensitivity and stability are also better due to the electrocatalytic properties produced by the high gold thin layer. The optimum conditions will be determined based on variations in the electrodeposition cycles of gold thin films and variations in the supporting electrolyte. The optimum cycle of gold thin film electrodeposition was obtained, namely one cycle and 0.1 M KOH as the optimum supporting electrolyte.

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Section: Pengantarunclassified

Deteksi Formaldehida Menggunakan Glassy Carbon Electrode (GCE) Modifikasi Lapisan Tipis Emas secara Voltametri Siklik

Maharani,

Sari,

Dewata

et al. 2024

Periodic

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“…3 Nevertheless, FA is still widely used in the textile, food processing, and plywood industries due to its indispensable chemical properties. 4,5 It is therefore of great importance to monitor the prevalence of FA in local living environments. 6 Currently, the detection of FA can be accomplished using techniques such as gas chromatography (GC), 7 high-performance liquid chromatography (HPLC), 8 and mass spectrometry (MS).…”

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confidence: 99%

“…Formaldehyde (FA), the simplest aldehyde, is widely recognized as an indoor air pollutant with a safe intake limit of no more than 0.15 mg/kg of body weight. , Inhalation of excess FA usually leads to adverse health effects in humans, and it was classified as a carcinogen by the International Agency for Research on Cancer (IARC) in 2004 . Nevertheless, FA is still widely used in the textile, food processing, and plywood industries due to its indispensable chemical properties. , It is therefore of great importance to monitor the prevalence of FA in local living environments …”

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confidence: 99%

Pattern Recognition and Visual Detection of Aldehydes Using a Single ESIPT Dye

Fan,

Li,

Jia

et al. 2023

Anal. Chem.

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The accurate discrimination and quantification of aldehydes is a worthy objective made challenging by their similar chemical reactivities. Considering the nucleophilic reaction mechanism between an aldehyde and a primary amine, it is reasonable to vary the reaction pH to manipulate the reactivity of aldehydes and the stability of the resulting Schiff base for analytical purposes. We have designed and synthesized three benzothiazole-based fluorescent molecules (BS1–BS3) containing an amino group substituted at the ortho-, meta-, and para-positions for aldehyde sensing. It was determined that only BS1 having an amino group at the ortho-position exhibits a significant fluorescence response in the presence of formaldehyde at a particular pH, whereas BS2 and BS3 gave negligible responses, indicating that the ESIPT process in BS1 should be responsible for the changes in its fluorescence. Accordingly, a pH-mediated sensor array BS1SA was constructed by dissolving BS1 in aqueous solvents with different pH values. BS1SA was found to be reliable for the discrimination of seven different aldehydes and identification of unknown aldehyde samples. Moreover, BS1 was successfully applied to prepare a fluorescent test paper for the visual detection of formaldehyde vapor.

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“…5,6 The deposition of metal nanoparticles, especially noble metallic nanoparticles onto PSi, 3,4,7 has been used as an alternative stabilization method that not only prevents PSi surface oxidation, but also increases and improves PSi charge transfer in electrochemical sensing performance. [8][9][10] Carbon-stabilized and/or metal nanoparticle doped PSi have been used as effective materials in the design of new electrochemical sensors for the detection of organic analytes such as dihydroxybenzene isomers, 5 pharmaceutical compounds, 11,12 formaldehyde 13 and Hydrogen peroxide. 14 in various samples.…”

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confidence: 99%

Synthesis and Introducing Au-Cu Alloy Nanoparticles/Porous Silicon as a Novel Modifier of Screen Printed Carbon Electrode in Simultaneous Electrocatalytic Detection of Codeine and Acetaminophen

Allahnouri

Farhadi

Imanzadeh

et al. 2022

J. Electrochem. Soc.

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In the present study, a bimetallic nanostructure of gold-copper (Au-CuNPs) was decorated on the surface of porous silicon (PSi) using an easy galvanic replacement reaction between metal ions and PSi in the presence of 0.1 M hydrofluoric acid solution. The morphology and structures of the Au-CuNPs@PSi nanocomposite were characterized using X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) energy-dispersive X-ray spectroscopy (EDX) and cyclic voltammetry (CV) techniques. Then, prepared nanocomposite was used as a modifier in screen-printed carbon electrode (SPCE) for the highly sensitive simultaneous determination of codeine (COD) and acetaminophen (ACE). The combination of PSi and metals nanoparticles provide a porous and high surface area with excellent electrical conductivity which leads to reduce the peak potentials and enhance the oxidation peak currents of COD and ACE at the surface of the Au-CuNPs@PSi/SPCE nanosensor. The dynamic linear ranges were obtained from 0.06 to 0.6 µM for both COD and ACE and the detection limits (3.0 S/N) estimated 0.35 µM for COD and 0.30 µM for ACE, respectively. Moreover, recovery tests were carried out in real samples such as urine, human blood plasma, and tablets.

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Application of Cu/porous silicon nanocomposite screen printed sensor for the determination of formaldehyde

Cited by 19 publications

References 69 publications

Deteksi Formaldehida Menggunakan Glassy Carbon Electrode (GCE) Modifikasi Lapisan Tipis Emas secara Voltametri Siklik

Deteksi Formaldehida Menggunakan Glassy Carbon Electrode (GCE) Modifikasi Lapisan Tipis Emas secara Voltametri Siklik

Pattern Recognition and Visual Detection of Aldehydes Using a Single ESIPT Dye

Synthesis and Introducing Au-Cu Alloy Nanoparticles/Porous Silicon as a Novel Modifier of Screen Printed Carbon Electrode in Simultaneous Electrocatalytic Detection of Codeine and Acetaminophen

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