One-step synthesis of fluorescent carbon dots for sensitive and selective detection of hyperin

Liu, Lizhen; Mi, Zhi; Hu, Qin; Li, Caiqing; Li, Xiaohua; Feng, Feng

doi:10.1016/j.talanta.2018.04.065

Cited by 19 publications

(8 citation statements)

References 78 publications

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“…The CQDs may be wrapped by tannic acid-mimicking dendrimers, which allows an effective nonradiative energy transfer process. Similarly, Liu et al [78] also confirmed this photoinduced electron transfer via the fluorescence quenching effect of hyperoside on the prepared CQDs.…”

Section: Fluorescence Quenching Mechanism Of Cqdsmentioning

confidence: 56%

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Carbon quantum dot preparation and application to detecting active ingredients in traditional Chinese medicine

Liu¹,

Guo

Fan

et al. 2021

Acupuncture and Herbal Medicine

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Carbon quantum dots (CQDs) are fluorescent carbon nanomaterials that have been applied to biology, medicine, and optoelectronics, owing to their significant advantages such as simple synthesis methods, low cost, and widely available sources of raw synthesis materials. This review summarizes CQD preparation methods, which include hydrothermal and microwave-assisted synthesis methods, as well as separation methods such as centrifugation, dialysis, and filtration. Additionally, we review the application of CQDs in the detection of active ingredients, primarily phenolic compounds, in traditional Chinese medicine. We also discuss the quenching mechanism of CQD fluorescence using the active ingredients of traditional Chinese medicine. Limitations such as insufficient test selectivity, weak fluorescence intensity, and an unclear quantitative relationship between preparation methods and properties should be resolved for the efficient use of CQDs to detect active ingredients in Chinese medicine.

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Section: Fluorescence Quenching Mechanism Of Cqdsmentioning

confidence: 56%

“…The method is simple, fast, and efficient. However, it is not suitable for the large-scale preparation of CQDs, owing to the large consumption of the oxidant [15,[77][78]. CQDs: Carbon quantum dots.Liu et al Volume 1 Number 2 2021 www.ahmedjournal.com…”

mentioning

confidence: 99%

Carbon quantum dot preparation and application to detecting active ingredients in traditional Chinese medicine

Liu¹,

Guo

Fan

et al. 2021

Acupuncture and Herbal Medicine

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“…Simultaneously, in the FT-IR spectrum of dimer acid, the absorption peaks at 1419 and 937 cm –1 were observed due to in-plane and out-of-plane vibrations of the O–H bond of the carboxylic acid group, but these peaks were almost disappeared in FT-IR spectrum of DAPEG, which confirmed that the desired ester was successfully formed . Furthermore, in FT-IR spectrum of DAPEG, peaks at 1190 cm –1 corresponds to stretching frequency of C–O–C, but in FT-IR spectrum of dimer acid, this absorption peak was absent, which reveals that ester bond was successfully formed after esterification reaction between dimer acid and PEG-200 . The peaks at 1460 and 1240 cm –1 in the FT-IR spectrum of DAPEG correspond to the stretching frequency for C–C and C–O bonds, respectively .…”

Section: Resultsmentioning

confidence: 91%

“…21 Furthermore, in FT-IR spectrum of DAPEG, peaks at 1190 cm −1 corresponds to stretching frequency of C−O−C, but in FT-IR spectrum of dimer acid, this absorption peak was absent, which reveals that ester bond was successfully formed after esterification reaction between dimer acid and PEG-200. 22 The peaks at 1460 and 1240 cm −1 in the FT-IR spectrum of DAPEG correspond to the stretching frequency for C−C and C−O bonds, respectively. 23 Successively, the chemical structures of DAPEG was further characterized by 1 H NMR and 13 C NMR spectral analyses.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Environmentally Friendly Polyurethane Dispersion Derived from Dimer Acid and Citric Acid

Chandra

Karak

2018

ACS Sustainable Chem. Eng.

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Sustainable polyurethane dispersion with smart properties has enormous potential in the polymer industries because of its unique and environmentally friendly characteristics. Biodegradable water dispersion thermoplastic polyurethanes (WBPUs) with self-healing capability were synthesized, and they were water-dispersible after neutralization with triethylamine (TEA). The biobased macroglycol and chain extender were synthesized via the catalyst-based esterification reactions of dimer acid (DA), poly(ethylene glycol) (PEG-200), citric acid (CA), and glycerol. Three different compositions of WBPUs were synthesized by reacting poly(ε-caprolactone) diol (PCL, M.W ∼ 2000 g/mol) and biobased macroglycol with aliphatic and aromatic diisocyanates in the presence of various amounts of branch generating unit. FT-IR, 1HNMR, 13CNMR, GPC, and XRD analyses of WBPUs were conducted to study the physicochemical structure, crystallinity, and molecular weight. The WBPUs exhibited high elongation at break (678.9–485.3%), toughness (51.49–32.6MJ m–3), tensile strength (9.26–7.82 MPa), scratch hardness (3.5–2 kg), gloss at 60° (25.4–15.6°), impact resistance (8.95–8.33 kJ/m), and chemical resistance. Furthermore, these WBPUs possessed microwave assisted self-healing and UV-aging characteristics, and they were found to be biodegradable.

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“…Hyperin is the main flavonoid compound in the kidney-tonifying TCM Cuscutae Semen and is considered to be its main bioactive ingredient [52]. Pharmacological studies have shown that it has antioxidant, antidepressant, and anti-inflammatory effects and has certain therapeutic effects on liver injury, cardio-cerebral ischemia, hypertension, coronary heart disease, and other diseases [53]. Ma and Tan [54] found that after using hyperin gavage treatment for 4 weeks, the body mass and gonadal index of POI mice increased, the pathological damage to the ovary decreased, and the number of follicles at all levels as well as the number of corpora lutea increased.…”

Section: Hyperinmentioning

confidence: 99%

Complementary and Alternative Medicine for Premature Ovarian Insufficiency: A Review of Utilization and Mechanisms

Ding

Shen

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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Premature ovarian insufficiency (POI) is defined as a decline in ovarian function before the age of 40 and is one of the leading causes of infertility in women. The etiology is complex, and the pathogenesis is not clear. The main treatment is hormone replacement therapy, but a growing body of data confirms that such treatment can increase the risk of endometrial disease and cardiovascular disease. Complementary and alternative medicine (CAM) has been widely used in patients with POI due to its limited adverse reactions and high efficiency. According to literature reports, CAM therapy for POI mainly includes traditional Chinese medicine, acupuncture, psychotherapy, dietary supplements, and exercise therapy. This article reviews the application of CAM in the treatment of POI and attempts to determine the therapeutic effects and the mechanisms behind these effects based on existing clinical and experimental studies in order to provide theoretical support for the treatment of POI.

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One-step synthesis of fluorescent carbon dots for sensitive and selective detection of hyperin

Cited by 19 publications

References 78 publications

Carbon quantum dot preparation and application to detecting active ingredients in traditional Chinese medicine

Carbon quantum dot preparation and application to detecting active ingredients in traditional Chinese medicine

Environmentally Friendly Polyurethane Dispersion Derived from Dimer Acid and Citric Acid

Complementary and Alternative Medicine for Premature Ovarian Insufficiency: A Review of Utilization and Mechanisms

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