Polyvinylpyrrolidone-enhanced electrochemical oxidation and detection of acyclovir

Wang, Peng; Gan, Tian; Zhang, Jianfeng; Luo, Jing; Zhang, Shenghui

doi:10.1016/j.molliq.2012.11.009

Cited by 31 publications

(15 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For this reason, the effect of pH over a pH range of 4.0 to 9.0 in the presence of ACV by DPV was carefully examined ( Figure 4A). This is compatible with that reported in literature [16,17]. So, at all subsequent electrochemical studies of ACV, 0.1 M PBS solution with pH equal to 7.0 was used as a supporting electrolyte.…”

Section: The Effect Of Phsupporting

confidence: 85%

“…Sadikoglu et al [12] employed Glassy Carbon electrode with differential pulse voltammetry to measure ACV in spiked human urine based on its oxidation behavior and limit of detection value of 3.5 3 10 À5 mol. In other study, a carbon paste electrode (CPE) modified by polyvinylpyrrolidone (PVP) greatly increased the oxidation signal of ACV for sensitive detection of it [16]. In another study a gold electrode (GE) modified with self-assembled monolayer of 2-mercaptobenzothiazol (MBZ) and copper (II) based complex was used to measure the ACV by square wave voltammetry (SWV).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

2018

View full text Add to dashboard Cite

In this work we reported, a simple and reproducible double‐step modified carbon paste electrode (CPE) for recognition and designation of Acyclovir (ACV). In the first stage, for acquiring the structure of TiO2 NPs‐CPE, 5 % TiO2 nanoparticles (NPs) doped into the electrode tissue. In the second stage, β‐Cyclodextrin (β‐CD) anchored on the TiO2 NPs‐CPE surface by electropolymerization which yields a β‐CD/TiO2 NPs‐CPE. Topography, characteristics and electrochemical response of the fabricated electrodes with such techniques as: the field emission scanning electron microscopy (FESEM), chronocoulometry (CC), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were analyzed. Also the spent TiO2 NPs powders were characterized by X‐ray diffraction (XRD). The results illustrated that this sensor designed efficiently increases the surface area of composite electrode and the performance of the oxidation of ACV at the surface modified electrode compared to the bare electrode improved. Under the desirable situations, the proposed of analytical procedure was proved to be applicable in two linear calibration ranges betwixt 0.09 to 2.98 and 2.98 to 47.61 μM. The detection limit was estimated for low concentrations ACV 21 nM (S/N=3). Eventually, the fabricated composite electrode was successfully applied for the detection of trace amounts of the ACV in the blood serum samples.

show abstract

Section: The Effect Of Phsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

2018

View full text Add to dashboard Cite

show abstract

“…Until now, PVP was successfully employed to modify electrode surface to enhance the response signals of acyclovir (Wang, Gan, Zhang, Luo, & Zhang, 2013), kojic acid (Yang & Zhang, 2007), sudan I (Yang, Zhao, Xu, Hu, & Hu, 2009), dopamine (Liu et al, 2012), ascorbic acid (Han, Shan, Guo, Niu, & Han, 2010), and haemoglobin (Li et al, 2005). Herein, a PVP-modified carbon paste electrode (CPE) was prepared and the electrochemical response of quinoline yellow was studied.…”

Section: Introductionmentioning

confidence: 99%

Sensitive and rapid determination of quinoline yellow in drinks using polyvinylpyrrolidone-modified electrode

2015

Self Cite

View full text Add to dashboard Cite

“…To date, the non-conjugated polyvinylpyrrolidone (PVP) is mostly used as a passivator or a capping agent for semiconductor such as ZnS or CdS, with the purpose to reduce the agglomeration and improve the optical property [12]. Some studies reported the application of the PVP as a sensor [14,15]. Wang et al reported that the PVP can be used as electrochemical sensor for acyclovir molecule [14], while Zhang et al used PVP nanocomposite as a humidity sensor [16].…”

Section: Introductionmentioning

confidence: 99%

“…Some studies reported the application of the PVP as a sensor [14,15]. Wang et al reported that the PVP can be used as electrochemical sensor for acyclovir molecule [14], while Zhang et al used PVP nanocomposite as a humidity sensor [16]. Since the PVP has been also reported to have photoluminescence property [15], it is worthy to study the possibility to use the non-conjugated PVP as the fluorescence sensor.…”

Section: Introductionmentioning

confidence: 99%

Polyvinylpyrrolidone as a New Fluorescent Sensor for Nitrate Ion

Ing¹,

Sundari²,

Lintang³

et al. 2016

MJAS

View full text Add to dashboard Cite

In this study, non-conjugated polyvinylpyrrolidone(PVP) was investigated for the first time as the potential polymeric material to sense nitrate ions by fluorescence spectroscopy. The PVP was diluted into various concentrations (3-10%) and they were used to sense the nitrate ions in different concentrations (0.1-100 mM). The PVP showed two excitation peaks at 285 and 330 nm due to the presence of C=O and N-C groups, respectively. One strong emission at 400 or 408 nm was observed with the excitation at 285 or 330 nm. The higher value of quenching constant at excitation wavelength of 285 nm indicated that C=O site was more favored for NO 3 -ions sensing than the N-C site. The PVP 7% gave the highest quenching constant; where the K SV value was 9.89 × 10 -3 mM -1 and 2.44 × 10 -3 mM -1 for excitation at 285 and 330 nm, respectively. The sensing capability was evaluated in the presence of interference ions (SO 4 2-, HCO 3 -, Cl -, and OH -). It was observed that the interference ions interacted strongly with the C=O, but weakly with the N-C. Therefore, in the presence of the interference ions, the PVP would be a potential fluorescent sensor when it is excited at 330 nm.Keywords: polyvinylpyrrolidone; fluorescent sensor; nitrate ions; quenching Abstrak Dalam kajian ini, polivinilpirolidon (PVP) yang bersifat bukan konjugat dikaji untuk kali pertama sebagai bahan polimer yang berpotensi untuk mengesan ion nitrat dengan spektroskopi pendaflour. PVP dicairkan kepada kepekatan yang berlainan (3-10%) dan digunakan untuk mengesan ion nitrat dalam kepekatan yang berbeza (0.1-100 mM). PVP menunjukkan dua puncak pengujaan pada 285 and 330 nm dengan kewujudan C=O dan N-C masing-masing. Satu puncak pemancaran yang tinggi pada 400 atau 408 nm diperolehi dengan pengujaan pada 285 atau 330 nm. Pemalar pelidap kejutan dengan nilai yang lebih tinggi pada puncak pengujaan 285 nm menunjukkan bahawa tapak C=O lebih cenderung untuk mengesan ion NO 3 -daripada tapak N-C. PVP 7% memberi pemalar pelidap kejutan yang paling tinggi, dengan nilai K SV 9.89 × 10 -3 mM -1 and 2.44 × 10 -3 mM -1 untuk puncak pengujaan pada 285 dan 330 nm masing-masing. Kemampuan pengesanan dinilai dengan kehadiran ion gangguan (SO 4 2-, HCO 3 -, OH -, and Cl -). Hasil kajian menunjukkan bahawa ion gangguan berinteraksi kuat dengan C=O, tetapi lemah dengan N-C. Oleh itu, dengan kehadiran ion gangguan, PVP berpotensi menjadi pendafluor sensor pada tapak pengujaan 330 nm.Kata kunci: polivinilpirolidon; pengesan pendaflour, ion nitrat, pelidap kejutan

show abstract

Polyvinylpyrrolidone-enhanced electrochemical oxidation and detection of acyclovir

Cited by 31 publications

References 19 publications

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

Sensitive and rapid determination of quinoline yellow in drinks using polyvinylpyrrolidone-modified electrode

Polyvinylpyrrolidone as a New Fluorescent Sensor for Nitrate Ion

Contact Info

Product

Resources

About

Polyvinylpyrrolidone-enhanced electrochemical oxidation and detection of acyclovir

Cited by 31 publications

References 19 publications

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO2 Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO2 Nanoparticle and β‐Cyclodextrin

Sensitive and rapid determination of quinoline yellow in drinks using polyvinylpyrrolidone-modified electrode

Polyvinylpyrrolidone as a New Fluorescent Sensor for Nitrate Ion

Contact Info

Product

Resources

About

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin