Sensitive detection of dopamine and quinone drugs based on the quenching of the fluorescence of carbon dots

Ren, Xiangling; Ge, Jiejie; Meng, Xianwei; Qiu, Xiaozhong; Ren, Jun; Tang, Fangqiong

doi:10.1007/s11434-016-1172-1

Cited by 45 publications

(24 citation statements)

References 34 publications

(32 reference statements)

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“…The FL emission peak did not shift with the variation of pH value, but the FL intensity was affected to a certain degree. The N-CDs showed a strong and stable FL intensity in a broad pH range (4)(5)(6)(7)(8)(9)(10). Under very acidic or alkaline conditions, the FL intensities were relatively low, probably due to the change in the surface charge of N-CDs, associated with protonation/deprotonation process of amine groups and CN units on the surface or edge [46].…”

Section: Optical Properties and Stability Of The As-prepared N-cdsmentioning

confidence: 99%

“…Unlike organic dye and semiconductor quantum dots, CDs usually own unique excitation-dependent fluorescence (FL) and break through the limitation of toxic heavy metal element during their formaiton. Thus, CDs show encouraging performance in the in vitro and in vivo bioimaging [4,5], chemical sensors and biosensor [6][7][8], fluorescent ink [9], light emitting diodes [10], drug delivery [11], medical diagnosis [12], catalysis [13] and so on.…”

Section: Introductionmentioning

confidence: 99%

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Facile and large-scale synthesis of green-emitting carbon nanodots from aspartame and the applications for ferric ions sensing and cell imaging

2017

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Section: Optical Properties and Stability Of The As-prepared N-cdsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Facile and large-scale synthesis of green-emitting carbon nanodots from aspartame and the applications for ferric ions sensing and cell imaging

2017

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“…However, the anomalous levels of dopamine in brain can cause various diseases. Therefore, the precise determination of dopamine is of critical importance in our life [102][103][104][105][106]. Owing to the inhibition effect of dopamine toward the catalytic oxidation of TMB, colorimetric assays can be developed for the detection of dopamine.…”

Section: Detection Of Dopaminementioning

confidence: 99%

Conducting polymer-based peroxidase mimics: synthesis, synergistic enhanced properties and applications

Yang

Wang

2018

Sci. China Mater.

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The concept of artificial enzymes has been proposed for a long time and a large variety of materials have been exploited in enzyme-like catalytic field for decades. The emergence of nanotechnology provides increasing opportunities for the development of artificial enzymes. Conducting polymer-based nanocomposites are a new type of burgeoning functional materials as enzyme mimics owing to their numerous functional groups, excellent electrical conductivity and redox properties. This review summarizes the recent progress of the synthesis of conducting polymers and their nanocomposites, as well as their applications as efficient peroxidase mimics. After a brief description of the development of conducting polymers, we specifically introduce the fabrication of conducting polymers and their nanocomposites via diverse approaches and show the enhanced peroxidase-like catalytic properties. In addition, the mechanism of the enhanced catalytic efficiency of the conducting polymer-based nanocomposites has been proposed. Finally, we highlight the applications of such conducting polymer-based nanocomposites in the sensitive detection of different types of substances. It is anticipated that this review will pave the way for developing more intriguing functional nanomaterials as enzyme mimics, which shows promising applications in a great many technological fields.

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“…Up to now, various biological macromolecules including chitosan, gelatin, collagen 19 , laminin and growth factor have been used to modify the scaffold surface via EDAC coupling, electrostatic layer-by-layer deposition, self-assembly grafting and so on. Since its discovery in 2007 20 , poly dopamine (pDA) as mussel-inspired substrate-independent coating method has been applied on a range of biomaterials (microfluidics, catalysts, bio-mineralization 21 , surface modifications 22 , sensitive determination 23 and neural interfaces). Dopamine (DA) and norepinephrine (NE) as catechol molecules can enhance surface affinity via self-polymerization on virtually any surfaces in alkaline environment.…”

Section: Introductionmentioning

confidence: 99%

Mussel Inspired Polynorepinephrine Functionalized Electrospun Polycaprolactone Microfibers for Muscle Regeneration

Liu

Zhou

et al. 2017

Sci Rep

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Electrospun scaffolds with excellent mechanical properties, high specific surface area and a commendable porous network are widely used in tissue engineering. Improving the hydrophilicity and cell adhesion of hydrophobic substrates is the key point to enhance the effectiveness of electrospun scaffolds. In this study, polycaprolactone (PCL) fibrous membranes with appropriate diameter were selected and coated by mussel-inspired poly norepinephrine (pNE). And norepinephrine is a catecholamine functioning as a hormone and neurotransmitter in the human brain. The membrane with smaller diameter fibers, a relative larger specific surface area and the suitable pNE functionalization provided more suitable microenvironment for cell adhesion and proliferation both in vitro and in vivo. The regenerated muscle layer can be integrated well with fibrous membranes and surrounding tissues at the impaired site and thus the mechanical strength reached the value of native tissue. The underlying molecular mechanism is mediated via inhibiting myostatin expression by PI3K/AKT/mTOR hypertrophy pathway. The properly functionalized fibrous membranes hold the potential for repairing muscle injuries. Our current work also provides an insight for rational design and development of better tissue engineering materials for skeletal muscle regeneration.

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Sensitive detection of dopamine and quinone drugs based on the quenching of the fluorescence of carbon dots

Cited by 45 publications

References 34 publications

Facile and large-scale synthesis of green-emitting carbon nanodots from aspartame and the applications for ferric ions sensing and cell imaging

Facile and large-scale synthesis of green-emitting carbon nanodots from aspartame and the applications for ferric ions sensing and cell imaging

Conducting polymer-based peroxidase mimics: synthesis, synergistic enhanced properties and applications

Mussel Inspired Polynorepinephrine Functionalized Electrospun Polycaprolactone Microfibers for Muscle Regeneration

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