A dual-template imprinted polymer-modified carbon ceramic electrode for ultra trace simultaneous analysis of ascorbic acid and dopamine

Prasad, Bhim Bali; Jauhari, Darshika; Tiwari, Mahavir Prasad

doi:10.1016/j.bios.2013.05.062

Cited by 88 publications

(36 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of DA detection by commonly employed electrochemical methods, limitations are related to the fact that DA oxidized at almost the same potential as AA. Nevertheless, recent publications have highlighted several strategies to overcome this problem using new nanocomposites 5-10 , magnetic particles [11][12][13][14][15][16] , conducting polymer [17][18] , carbon nanotubes 19-25 and molecularly imprinted polymers as active layers [26][27][28][29][30] . However, the development of these electrochemical sensors requires yet large numbers of steps for fabrication.…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Fourati

Seydou

Zerrouki

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

A highly selective and sensitive surface acoustic wave (SAW) sensor of dopamine (DA) was developed by depositing cobalt phthalocyanine (CoPc) nanopillars on gold-coated sensing platform of SAW sensor. The developed biosensor presents a sensitivity of 1.6°/nM, has a low limit of detection (LOD) on the order of 0.1 nM, and imparts more selectivity toward DA, since the detection limit of the interfering ascorbic acid (AA) is as high as 1 mM. To understand the selectivity mechanisms of this sensor toward DA, density functional theory-based chemical calculations were carried out. Calculations suggest two different types of interactions: dative bond with a very strong character for DA-CoPc complexes, and significant ionic character in the case of AA-CoPc ones. The interaction energies, in liquid phase, were estimated to be equal to -81 kJ mol(-1) and -38 kJ mol(-1) for DA-CoPc and AA-CoPc complexes, respectively, therefore accounting for the selective detection of DA over AA using tandem CoPc nanopillar-based SAW sensor device. This work demonstrates a simple and efficient design of SAW sensors employing thin nanostructured CoPc biomolecular recognition layers for DA detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Fourati

Seydou

Zerrouki

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…This was likely due to the inability of smaller monomer contents (1:1:2 and 1:1:3) to withhold template molecules efficiently, while higher monomer amounts (1:1:5) generated more heterogeneity of the binding sites [30], which maybe result in lower binding capacity. Therefore, 1:1:4 was selected as the ratio of templates to monomer to prepare the dual-template imprinted film.…”

Section: Preparation and Characterization Of M-timif-and M-tinif-coatmentioning

confidence: 99%

Novel molecularly imprinted stir bar sorptive extraction based on an 8-electrode array for preconcentration of trace exogenous estrogens in meat

Qiao

Gan

Wang

et al. 2015

Analytica Chimica Acta

View full text Add to dashboard Cite

“…[43,45] More importantly, vertically aligned CNT "forests" are very useful for sensor application because the carboxylated edges of the nanotubes are exposed, exhibiting the highest electrocatalytic activity as well as large heterogeneous electron transfer rate constants. [44,46] H. M. So et al, [47] first introduced the real-time detection of protein using single-walled CNT field effect transistor biosensor by utilizing DNA aptamers as an alternative to protein-based sensing elements.…”

Section: Carbon Nanotubeàsilica Composite Matrixmentioning

confidence: 99%

Recent advances in silica-based biosensors: a review

Chen

Zhang

Chang

et al. 2015

Journal of the Chinese Advanced Materials Society

View full text Add to dashboard Cite

Silica has become a common platform for various catalytic and chemical reactions, biosensor, and drug release owing to its low toxicity, chemical and physical stabilities, large surface area, tunable pore sizes, and well-defined surface chemistry. Therefore, biomolecules encapsulated within a porous silica host has provoked significant interest in the development, application, and market of silica-based biosensors due to its potential application in analytic chemistry and biological science. Considerable progresses have been achieved in past few decades. This review focuses primarily on such advances in synthesis and applications of silica-based biosensors, especially emphasizing development which has occurred in the last 10 years, further driving readers to understand and construct various silica-based biosensors with high sensitivity and high stability.

show abstract

A dual-template imprinted polymer-modified carbon ceramic electrode for ultra trace simultaneous analysis of ascorbic acid and dopamine

Cited by 88 publications

References 47 publications

Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Novel molecularly imprinted stir bar sorptive extraction based on an 8-electrode array for preconcentration of trace exogenous estrogens in meat

Recent advances in silica-based biosensors: a review

Contact Info

Product

Resources

About