Tris(2,2′-bipyridyl)ruthenium(II) electrogenerated chemiluminescence sensor based on carbon nantube dispersed in sol–gel-derived titania–Nafion composite films

Choi, Han Nim; Lee, Ja Young; Lyu, Young Ku; Lee, Won Yong

doi:10.1016/j.aca.2006.01.106

Cited by 81 publications

(46 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several recent papers concerned with the use of nanomaterials to fabricate ECL sensors were reported. [22][23][24] Dong's group developed an advanced immobilization method involving doping Ru(bpy)3 2+ into silica nanoparticles based on the microemulsion method, 25 and Ru(bpy)3…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nafion-Ru(bpy)32+-Chitosan/Gold Nanoparticles Composite Film and Its Electrochemiluminescence Application

Liu

Zheng

et al. 2012

ANAL. SCI.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Preparation of Nafion-Ru(bpy)32+-Chitosan/Gold Nanoparticles Composite Film and Its Electrochemiluminescence Application

Liu

Zheng

et al. 2012

ANAL. SCI.

View full text Add to dashboard Cite

“…The result indicates that CNT has obvious catalytic effect towards the oxidation of DA as reported previously in the literature 10 and the titania-Nafion composite is a good matrix for the fabrication of the CNT-based electrochemical sensors. 23 When the CNT is doped only in Nafion, the CNT-Nafion/GC electrode exhibited 40% smaller anodic current for DA than that at the CNT-titaniaNafion/GC electrode, and even 17% smaller than at the titaniaNafion/GC electrode. The result indicates that the titania-Nafion composite is much more effective matrix than the pure Nafion for the construction of CNT-based electrochemical sensors.…”

Section: Resultsmentioning

confidence: 96%

“…22 In addition, the titania-Nafion composite has the ability to disperse the CNT. 23 Therefore, the CNT-doped titania-Nafion mesoporous composite has been advantageously used for the fabrication of phenol, 24 alcohol 25 and glucose 26 biosensors. The biosensors based on the CNT-titania-Nafion composite film exhibited substantial improvement in long-term stability because of the mechanical stability as well as biocompatibility of the composite film.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Dopamine Based on Carbon Nanotube-Sol-Gel Titania-Nafion Composite Film Modified Electrode

Park¹,

Kim²,

Choi³

et al. 2010

Bulletin of the Korean Chemical Society

Self Cite

View full text Add to dashboard Cite

A highly sensitive electrochemical detection method for dopamine (DA) has been developed by relying on a multiwalled carbon nanotube (CNT)-sol-gel titania-Nafion composite film modified glassy carbon (GC) electrode. The CNT-titania-Nafion/GC electrode exhibited excellent electrocatalytic activity towards DA. Therefore, the CNT-titaniaNafion/GC electrode showed improved voltammetric and amperometric responses for DA compared to those obtained with both titania-Nafion/GC and Nafion/GC electrodes. The CNT-titania-Nafion/GC electrode gave a linear response (R 2 = 0.999) for DA from 0.5 μM to 0.5 mM with a detection limit (S/N = 3) of 0.1 μM and a good sensitivity of 150 mA/M while other electrodes such as CNT-Nafion/GC, titania-Nafion/GC, and a bare GC gave a sensitivity of 89, 39, and 36 mA/M, respectively. Besides, the CNT-titania-Nafion/GC electrode displayed very fast response time within 2 s. The modified electrode showed good selectivity against ascorbic acid. The modified electrode showed good stability and reproducibility. The CNT-titania-Nafion/GC electrode was applied to the determination of DA in urine and serum samples.

show abstract

“…20 The experimental results at Figure 3 also suggest that the titania-Nafion composite is a good immobilization medium for the construction of the CNT-based electrochemical and electrochemiluminescent sensors. 19 When CNT is doped in titania-Nafion composite, the CNT-titania-Nafion/GC electrode (c) exhibited 57% higher oxidation current for BPA than that at the CNTNafion/GC electrode (b). This result appears to indicate that the titania-Nafion composite is much more effective medium than the pure Nafion for the fabrication of CNT-based electrochemical sensor for BPA.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Determination of Bisphenol A at Carbon Nanotube-Doped Titania-Nafion Composite Modified Electrode

Kim

et al. 2013

Bulletin of the Korean Chemical Society

Self Cite

View full text Add to dashboard Cite

A highly sensitive electrochemical detection method for bisphenol A (BPA) has been developed by using multi-walled carbon nanotube (CNT)-doped titania-Nafion composite modified glassy carbon (GC) electrode. The CNT−titania−Nafion/GC electrode exhibited excellent electrocatalytic activity towards BPA. Therefore, the CNT−titania−Nafion/GC electrode showed improved voltammetric responses for BPA compared to that obtained with bare GC electrode. In addition, cetyltrimethylammonium bromide (CTAB), a cationic surfactant, was added into the BPA sample solution in order to accumulate BPA through hydrophobic interaction between CTAB and BPA. The CNT−titania−Nafion/GC electrode gave a linear response (r 2 = 0.999) for BPA from 1.0 × 10 −8 M to 5.0 × 10 −6 M with a detection limit of 9.0 × 10 −10 M (S/N = 3). The modified electrode showed good selectivity against interfering species and also exhibited good reproducibility. The present electrochemical sensor based on the CNT-titania-Nafion/GC electrode was applied to the determination of BPA in food package samples.

show abstract

Tris(2,2′-bipyridyl)ruthenium(II) electrogenerated chemiluminescence sensor based on carbon nantube dispersed in sol–gel-derived titania–Nafion composite films

Cited by 81 publications

References 51 publications

Preparation of Nafion-Ru(bpy)32+-Chitosan/Gold Nanoparticles Composite Film and Its Electrochemiluminescence Application

Preparation of Nafion-Ru(bpy)32+-Chitosan/Gold Nanoparticles Composite Film and Its Electrochemiluminescence Application

Electrochemical Determination of Dopamine Based on Carbon Nanotube-Sol-Gel Titania-Nafion Composite Film Modified Electrode

Electrochemical Determination of Bisphenol A at Carbon Nanotube-Doped Titania-Nafion Composite Modified Electrode

Contact Info

Product

Resources

About