An electrochemical glucose biosensor based on graphene composites: use of dopamine as reducing monomer and as site for covalent immobilization of enzyme

Hui-ping, Liu; Tao, Cheng‐an; Hu, Zhishan; Zhang, Sida; Wang, Jianfang; Zhan, Yonggong

doi:10.1039/c4ra04975f

Cited by 25 publications

(12 citation statements)

References 41 publications

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“…For example, GOX can be used as a blood sugar level sensor for diabetic patients by measuring the glucose concentration in their blood. 10,11 Insulin dependent diabetic patients need to control their blood sugar levels. Some of these sensors used as disposable sensors are growing.…”

Section: Introductionmentioning

confidence: 99%

Enzyme immobilisation on poly-l-lysine-containing calcium phosphate particles for highly sensitive glucose detection

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Enzyme immobilisation on poly-l-lysine-containing calcium phosphate particles for highly sensitive glucose detection

et al. 2019

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“…After modification with dodecylamine, although the C1s XPS spectrum of the resultant CFG also exhibits these same oxygen‐containing groups, their peak intensities are much smaller than those in GO. In addition, there is an additional component at 285.7 eV corresponding to CN bond . These observations indicate considerable de‐oxygenation by dodecylamine reduction process and demonstrate the dodecylamine covalently bonding to graphene sheets.…”

Section: Resultsmentioning

confidence: 76%

Chemically functionalized graphene/polymer nanocomposites as light heating platform

Tao

Zou

et al. 2014

Polymer Composites

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Chemically functionalized graphene (CFG) is proposed as a novel nanoscale optical heater by uniformly dispersing it in poly(dimethylsiloxane) (PDMS) matrix. And subsequently, a simple, fast, and localized heating method on microfluidic chips is demonstrated. CFG is prepared through simultaneous modification and reduction of graphene oxide with dodecylamine by a solvothermal route. It is well dispersed in PDMS suspension to form uniform CFG/PDMS composite due to the presence of the long‐dodecyl chain. The obtained CFG/PDMS composites are readily made into microfluidic chips by standard soft lithography. The localized optical heating on the chip is realized by employing a conventional semiconductor laser as light source. The prepared chips with low to 0.05 wt% CFG contents can exhibit temperature increase (<1 min) at very low power illumination. The optical heating effects were observed not only under irradiation with long wavelength, but also under the wavelengths as short as 405 nm. Our studies illustrated that CFG/PDMS composite can serve as a practical optical heating platform for microfluidic chips with the advantages of simple, low cost, and high efficiency. POLYM. COMPOS., 37:1350–1358, 2016. © 2014 Society of Plastics Engineers

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“…In addition, Aweak derivative peak appeared around 26 • , which should be attributed to the crystallization peak of residual graphite oxide [37]. However, after modification with dopamine, A new broad diffraction peak at 23.5 • can be observed for the resultant nano-PDA@GO-TiO 2 composites, which was due to the stacking of the benzene rings of PDA molecules, demonstrates that the DA has successfully self-polymerized on the GO [38]. The reduction of GO by DA modified is also established by the appearance of broad peak observed in the region (22 • -38 • ) and the disappearance of the peak at 12.32 • in nano-PDA@GO-TiO 2 composites of XRD [34,39].…”

Section: Xrd Patternsmentioning

confidence: 92%

Polydopamine Modified Graphene Oxide-TiO2 Nanofiller for Reinforcing Physical Properties and Anticorrosion Performance of Waterborne Epoxy Coatings

et al. 2019

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Nano-polydopamine-graphene oxide-TiO2 (nano-PDA@GO-TiO2) composites were prepared by dopamine modified graphene oxide (GO) and loaded nano-TiO2 on the surface of GO. The structure and morphology of nano-PDA@GO-TiO2 composites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), Scanning electron microscope (SEM), and Transmission electron microscope (TEM) Results demonstrate that the introduction of dopamine to functionalize the GO could self-polymerize polydopamine (PDA) on the surfaces of the GO and endow abundant chemical groups reduce the GO. The interaction between the GO and nano-TiO2 particles could prevent graphene nanosheets from restacking and nano-TiO2 particles from agglomeration. Nano-PDA@GO-TiO2 composite material was used as the nano-filler, and nano-PDA@GO-TiO2 composites waterborne epoxy resin coatings (PGT/WEP) were prepared by dispersing a different content of nano-PDA@GO-TiO2 composites into waterborne epoxy resin with the help of ultrasonic dispersion and mechanical agitation. The physical properties of PGT/WEP coatings, such as hardness, impact resistance, and adhesion, were tested and the electrochemical performance was evaluated. The results show that dispersing 2% nano-PDA@GO-TiO2 composites in waterborne epoxy resin could significantly improve the physical properties and corrosion resistance of waterborne epoxy resin coating when compared with pure waterborne epoxy coating.

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An electrochemical glucose biosensor based on graphene composites: use of dopamine as reducing monomer and as site for covalent immobilization of enzyme

Cited by 25 publications

References 41 publications

Enzyme immobilisation on poly-l-lysine-containing calcium phosphate particles for highly sensitive glucose detection

Enzyme immobilisation on poly-l-lysine-containing calcium phosphate particles for highly sensitive glucose detection

Chemically functionalized graphene/polymer nanocomposites as light heating platform

Polydopamine Modified Graphene Oxide-TiO2 Nanofiller for Reinforcing Physical Properties and Anticorrosion Performance of Waterborne Epoxy Coatings

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