Bright hydrophilic and organophilic fluorescence carbon dots: One-pot fabrication and multi-functional applications at visualized Au3+ detection in cell and white light-emitting devices

Gao, Wenli; Zhou, Yanmei; Xu, Chenggong; Guo, Ming; Qi, Zhichong; Peng, Xiaojun; Gao, Bin

doi:10.1016/j.snb.2018.11.024

Cited by 45 publications

(12 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with some works on hydrophobic CDs published in recent years ( Table S2 ), 13 , 17 , 20 , 23 , 26 , 27 , 47 − 49 this article provides a new synthetic idea, makes new explorations in the synthesis mechanism, luminescence mechanism, and applications of HCDs, and provides further research on HCDs.…”

Section: Results and Discussionmentioning

confidence: 92%

Yellow-Emitting Hydrophobic Carbon Dots via Solid-Phase Synthesis and Their Applications

Zhao

Zhang

et al. 2020

ACS Omega

View full text Add to dashboard Cite

The preparation and application of hydrophobic carbon dots (HCDs) are now the hotspots in the field of nanomaterials. This paper reports the fast synthesis of long-wavelength-emitting HCDs (yellow-emitting, λ em = 541 nm) through a solid-phase route, with l -cysteine hydrochloride anhydrous and citric acid as carbon sources and dicyclohexylcarbodiimide as a dehydrating agent, reacting at 180 °C for 40 min, with a quantum yield of 30%. The solid-phase route avoids the usage of organic reagents during the synthesis process and is thus environmentally friendly. The obtained HCDs can be simply separated into HCDs-L (less density) and HCDs-W (higher density) with differences in physical (polarity, density), optical, and chemical properties. The differences in HCDs-L, HCDs-W, and water-soluble CDs (WCDs) were compared through various characterization methods, and the synthesis and luminescence mechanisms of HCDs were investigated. Meanwhile, HCDs were employed in the fields of LED lamp production and solid fluorescent shaping material. The prepared HCDs were then modified into WCDs through the liposomal embedding method. The HCDs prepared by the new solid-phase route exhibit stable and highly efficient photoluminescence ability and will have a promising outlook in their applications in various fields.

show abstract

Section: Results and Discussionmentioning

confidence: 92%

Yellow-Emitting Hydrophobic Carbon Dots via Solid-Phase Synthesis and Their Applications

Zhao

Zhang

et al. 2020

ACS Omega

View full text Add to dashboard Cite

show abstract

“…This is in line with the recognition that the synthesized carbon-based materials under solvothermal conditions mainly show an amorphous edge modified by functional groups and the graphitized core. 29 , 30 FTIR analysis was performed to determine the functional groups of CDs ( Figure 1 d). The broad absorption bands with peaks at 3695 and 3140 cm –1 indicated the existence of N–H and −OH bonds, respectively.…”

Section: Resultsmentioning

confidence: 99%

Ratiometric Fluorescent Biosensor Based on Forster Resonance Energy Transfer between Carbon Dots and Acridine Orange for miRNA Analysis

et al. 2021

View full text Add to dashboard Cite

The expression level of miRNA is highly correlated with the pathological process of malignant tumors. Therefore, the abnormal expression of miRNA in serum is considered as reliable evidence for the existence of tumor cells. Here, a ratiometric fluorescent biosensor based on the Forster resonance energy transfer between fluorophores is proposed for detecting colorectal cancer-specific miRNA (miR-92a-3p). The miRNA in serum was first isolated by carboxyl-modified SiO 2 microspheres. Then, the addition of miRNA to the detection system resulted in the distance change between the donor acridine orange (AO) and the acceptor fluorescent carbon dots (CDs), which made the fluorescence signal change. The physicochemical properties, especially the fluorescence characteristics of CDs and AO, which enabled the ratiometric fluorescence detection, were comprehensively studied. The ratiometric fluorescent biosensor could detect miRNA in the concentration range of 1–9 nM and showed a detection limit of 0.14 nM. Moreover, the ratiometric fluorescent biosensor exhibited high selectivity for the target miRNA. The validity of the ratiometric fluorescent biosensor was also verified using the serum sample, demonstrating its potential for enzyme-free miRNA analysis.

show abstract

“…52,53 In addition, the FTIR and XPS show that there are rich oxygen-containing groups and amino groups on the surface of the CeCDs, indicative of a good hydrophilicity. [54][55][56] This facilitates catalytic hydrolysis of BNPP.…”

Section: Characterization Of Cecdsmentioning

confidence: 99%

Fabrication of highly active phosphatase-like fluorescent cerium-doped carbon dots for in situ monitoring the hydrolysis of phosphate diesters

Chen

et al. 2020

RSC Adv.

View full text Add to dashboard Cite

show abstract

Bright hydrophilic and organophilic fluorescence carbon dots: One-pot fabrication and multi-functional applications at visualized Au3+ detection in cell and white light-emitting devices

Cited by 45 publications

References 42 publications

Yellow-Emitting Hydrophobic Carbon Dots via Solid-Phase Synthesis and Their Applications

Yellow-Emitting Hydrophobic Carbon Dots via Solid-Phase Synthesis and Their Applications

Ratiometric Fluorescent Biosensor Based on Forster Resonance Energy Transfer between Carbon Dots and Acridine Orange for miRNA Analysis

Fabrication of highly active phosphatase-like fluorescent cerium-doped carbon dots for in situ monitoring the hydrolysis of phosphate diesters

Contact Info

Product

Resources

About