Fluorescent CDs@PCL hybrids via tartaric acid, CDs-cocatalyzed polymerization

Yan, Ming; Zhou, Mingchen; Chen, Jing; Zhao, Tian-Lei; Tang, Longxiang; Hong, Bo

doi:10.1016/j.msec.2017.05.013

Cited by 9 publications

(8 citation statements)

References 45 publications

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“…Other reports unravel the use of CDs as co-initiators and catalysts. Some examples include free radical frontal polymerization, controlled light-mediated radical polymerization, and co-catalyzed polymerization [20][21][22][23]. Polymers with amino functional groups, such as polyaniline, polypyrrole, and poly (4,4 -diaminodiphenyl methane), were synthesized by CDs under UV light as an initiator [24,25].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity against Methicillin-Resistant Staphylococcus aureus of Colloidal Polydopamine Prepared by Carbon Dot Stimulated Polymerization of Dopamine

et al. 2019

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A simple one-step process for the polymerization of dopamine has been developed using nitrogen-doped carbon dots (N@C–dots) as the sole initiator. The synthesized amorphous polydopamine (PDA)-doped N@C–dots (PDA–N@C–dots composite) exhibited a negative charge of –39 mV with particle sizes ranging from 200 to 1700 nm. The stable colloidal solution was active against methicillin-resistant Staphylococcus aureus (MRSA), a Gram-negative bacterium. The strong adhesion of the polymer to the bacterial membrane resulted in a limited diffusion of nutrients and wastes in and out of the cell cytosol, which is a generic mechanism to trigger cell death. Another possible route is the autoxidation of the catechol moiety of PDA to form quinone and release reactive oxygen species (ROS) such as superoxide radicle and hydrogen peroxide, two well-known ROS with antimicrobial properties against both Gram-negative and Gram-positive bacteria.

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Section: Introductionmentioning

confidence: 99%

Antibacterial Activity against Methicillin-Resistant Staphylococcus aureus of Colloidal Polydopamine Prepared by Carbon Dot Stimulated Polymerization of Dopamine

et al. 2019

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“…Tartaric is a polyhydroxyl binary carboxylic acid, and ethylenediamine contains nitrogen. Both of them are environmentally friendly [36,37] raw materials. Brown and well-distributed C/N-dots solution was obtained with a simple hydrothermal treatment of raw materials at 180 °C for 5 h. TEM characterization results clearly revealed that the C/N-dots were spherical dots and well dispersed from each other, with a diameter of about 3.2 nm.…”

Section: Resultsmentioning

confidence: 99%

“…To investigate the selectivity [36,50] of C/N-dots to metal ions, several fluorescence spectra were exhibited. The fluorescence responses of C/N-dots with the addition of various metal ions were explored.…”

Section: Resultsmentioning

confidence: 99%

Sensitively and Selectively Detect Biothiols by Using Fluorescence Method and Resonance Light Scattering Technique Simultaneously

et al. 2019

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In this paper, we designed a new quantitative and qualitive detection method for biothiols by using fluorescence method and resonance light scattering (RLS) technique. Nitrogen doped carbon quantum dots (C/N-dots) were obtained from tartaric acid and ethylenediamine by hydrothermal method, and then their morphology and optical properties were characterized by different techniques. A detection system consisting of C/N-dots and Ag+ complex was established. In this system, C/N-dots possessed the photoluminescent property and the Ag+ complex owned the RLS property, so, by combining the two luminescent properties to achieve complementary advantages, we could detect biothiols and solve the problem of distinguishing between Cys and GSH. Additionally, we optimized detecting conditions and investigated the detection mechanism of fluorescence quenching and RLS detecting. Results showed that the analytical response of fluorescence was linear in the range 0–140 μM and the detection limit (LOD) was calculated to be 6.6 μM for Cys, and the addition of GSH had no effect on fluorescence. RLS response ranges were 0–167 μM for Cys and 0–200 μM for GSH, with LOD down to 64 nM and 74 nM, respectively. Furthermore, the probe was successfully used for detecting Cys in fetal bovine serum (FBS) samples by fluorescence method, and also, by RLS technique, the content of GSH in FBS samples was detected.

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“…employed CDs as co-catalysts with tartaric acid (TA) to initiate the ring-opening polymerization (ROP)ofe-caprolactone (CL) to synthesize PCL with high conversion, low molecular weight, and fluorescence properties ( Figure 3C). [84] Very recently,K ütahya et al used N-doped CDs as effective photocatalysts and photosensitizers to initiate ATRP-based radical polymerization under irradiation by blue-light-emitting diodes (LEDs). [85] Moreover,the Gedanken group conducted aseries of studies focusing on the use of CDs as the only initiator for the polymerization of aniline compounds, [86][87][88] pyrrole, [86,89] and their copolymers.…”

Section: The Use Of Cds As Initiatorsmentioning

confidence: 99%

Section: One-step Synthesis Of Cd/polymer Compositesmentioning

confidence: 99%

The Rapid and Large‐Scale Production of Carbon Quantum Dots and their Integration with Polymers

Wang

et al. 2020

Angewandte Chemie

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Carbon quantum dots (CDs) have inspired vast interest because of their excellent photoluminescence (PL) performances and their promising applications in optoelectronic, biomedical, and sensing fields. The development of effective approaches for the large‐scale production of CDs may greatly promote the further advancement of their practical applications. In this Minireview, the newly emerging methods for the large‐scale production of CDs are summarized, such as microwave, ultrasonic, plasma, magnetic hyperthermia, and microfluidic techniques. The use of the available strategies for constructing CD/polymer composites with intriguing solid‐state PL is then described. Particularly, the multiple roles of CDs are emphasized, including as fillers, monomers, and initiators. Moreover, typical applications of CD/polymer composites in light‐emitting diodes, fluorescent printing, and biomedicine are outlined. Finally, we discuss current problems and speculate on their future development.

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Fluorescent CDs@PCL hybrids via tartaric acid, CDs-cocatalyzed polymerization

Cited by 9 publications

References 45 publications

Antibacterial Activity against Methicillin-Resistant Staphylococcus aureus of Colloidal Polydopamine Prepared by Carbon Dot Stimulated Polymerization of Dopamine

Antibacterial Activity against Methicillin-Resistant Staphylococcus aureus of Colloidal Polydopamine Prepared by Carbon Dot Stimulated Polymerization of Dopamine

Sensitively and Selectively Detect Biothiols by Using Fluorescence Method and Resonance Light Scattering Technique Simultaneously

The Rapid and Large‐Scale Production of Carbon Quantum Dots and their Integration with Polymers

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