A highly sensitive sensor of paracetamol based on zinc-layered hydroxide-L-phenylalanate-modified multiwalled carbon nanotube paste electrode

Ahmad, Mohamad Syahrizal; Isa, Illyas Md; Hashim, Norhayati; Suyanta, Suyanta; Saidin, Mohamad Idris

doi:10.1007/s10008-018-3979-y

Cited by 15 publications

(5 citation statements)

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“…11 At present, various methods have been introduced for the detection of PA, such as capillary electrophoresis, 14 highperformance liquid chromatography (HPLC), 15 spectroscopy 16 and electrochemical techniques. 17,18 L-tyrosine (Tyr) is an amino acid found in the diet that is involved in producing catecholamines such as dopamine and adrenaline. The synthesis of catecholamines is highly regulated in the body and tyrosine hydroxylase converts Tyr into LD.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous electrochemical detection of levodapa, paracetamol and l-tyrosine based on multi-walled carbon nanotubes

Gao

et al. 2020

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Simultaneous electrochemical detection of levodapa, paracetamol and l-tyrosine based on multi-walled carbon nanotubes

Gao

et al. 2020

RSC Adv.

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“…Besides, metal layered hydroxides have also gained much attention in carbon paste electrode (CPE) fabrication, owing to their remarkable capability of anion exchange and also excellent physicochemical properties in terms of low toxicity, chemical inertness and high surface area [22]. In our previous work, abilities of layered zinc hydroxide-ferulate (LZH-F), layered zinc hydroxide-L-phenylalanate (LZH-LP) and layered zinc hydroxide-sodium dodecyl sulphate-isoprocarb (LZH-SDS-ISO) applied as modifiers with MWCNT were demonstrated for the determination of hydroquinone (HQ) [23], acetaminophen (PCM) [24] and dopamine (DOP) [25], respectively.…”

Section: Introductionmentioning

confidence: 99%

Sensitive determination of uric acid at zinc layered hydroxide-sodium dodecyl sulphate-propoxur nanocomposites

Tajudin¹,

Ahmad

Isa

et al. 2022

J. Electrochem. Sci. Eng.

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An electrochemical chemical sensor for determination of uric acid (UA) with highly sensitive and widely working range was fabricated using zinc layered hydroxide-sodium dodecyl sulphate-propoxur (ZLH-SDS-PRO) nanocomposites modified with multiwall carbon nanotubes (MWCNT). Introduction of the ZLH-SDS-PRO as a conducting matrix has enhanced the conductivity of MWCNT. The ZLH-SDS-PRO/MWCNT morphology was characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM), meanwhile the electrochemical behaviour of UA and K3[Fe(CN)6] at ZLH-SDS-PRO/MWCNT paste electrode was studied by square wave voltammetry (SWV) and cyclic voltammetry (CV), respectively. Under the optimized experimental conditions, the electrode established linear plot for UA from 7.0 µmol/L to 0.7 mmol/L (R2 = 0.9920) and the LOD was calculated to be 4.28 µmol/L (S/N = 3). The fabricated electrochemical electrode was successfully applied to urine samples and exhibit excellent stability and reproducibility, which made it worthwhile to be explored for analytical applications.

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“…A great deal of consideration has been given to clay-based materials to be used as host materials for CRF as they are naturally abundant, non-toxic, great biocompatibility, and good ion-exchange ability (Cardoso et al 2006;Choy et al 2007;Radian and Mishael 2008;Mohsin et al 2013;Chen et al 2017;Allou et al 2018;Bernardo et al 2018;Nath and Dolui 2018;Bugatti et al 2019;Rebitski et al 2019). These amazing properties also allow the clay-based host material to be exploited not only in agricultural field, but also in numerous other fields, including medicinal, cosmetic, food technology, and sensor development (Isa et al 2012(Isa et al , 2015Wardani et al 2014;Ahmad et al 2018;Aziz et al 2019;Zainul et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Chitosan as a coating material in enhancing the controlled release behaviour of zinc hydroxide nitrate–sodium dodecylsulphate–bispyribac nanocomposite

et al. 2020

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The aim of this study is to modulate the controlled release properties of zinc hydroxide nitrate-sodium dodecylsulphatebispyribac (ZHN-SDS-BP) nanocomposite, by coating the nanocomposite using chitosan. This study was conducted as part of an effort to reduce the environmental problems caused by the over-use of pesticides. The characterisation study shows that chitosan had been successfully coated onto the outer surface of the ZHN-SDS-BP (BP concentration of 0.05 M) without changing the types of ions intercalated in its interlayer gallery. The chitosan-coated nanocomposite, ZHN-SDS-BP-Chi also possesses a better thermal stability compared to the uncoated nanocomposite. Owing to the polycationic, hygroscopic nature, and gelation ability of chitosan, the chitosan coating was found to significantly prolong the release of bispyribac. The ZHN-SDS-BP-Chi showed a better performance in releasing pesticides, with prolonged release time ranging from 462 to 5349 min, compared to 74 to 4117 min for the uncoated nanocomposites. The release kinetic studies reveal that the release of bispyribac from the ZHN-SDS-BP-Chi is controlled by a pseudo-second-order kinetic model, thus signifying that the release mechanism is via dissolution and ion-exchange processes. The potential of chitosan in slowing the release of BP from ZHN-SDS-BP-Chi will hopefully contribute to minimise the risk of pollution resulting from the excessive use of pesticides.

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A highly sensitive sensor of paracetamol based on zinc-layered hydroxide-L-phenylalanate-modified multiwalled carbon nanotube paste electrode

Cited by 15 publications

References 50 publications

Simultaneous electrochemical detection of levodapa, paracetamol and l-tyrosine based on multi-walled carbon nanotubes

Simultaneous electrochemical detection of levodapa, paracetamol and l-tyrosine based on multi-walled carbon nanotubes

Sensitive determination of uric acid at zinc layered hydroxide-sodium dodecyl sulphate-propoxur nanocomposites

Chitosan as a coating material in enhancing the controlled release behaviour of zinc hydroxide nitrate–sodium dodecylsulphate–bispyribac nanocomposite

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