NWIPB OpenIR
Preparation of carbon nanodots capped by polyethylene glycol as a multifunctional sensor for temperature and paracetamol
Qu, Fei1,2; Xue, Fangfang1,2; Liu, Jing1,2; You, Jinmao1,2,3
2017-08-21
Source PublicationANALYTICAL METHODS
ISSN1759-9660
Volume9Issue:31Pages:4533-4538
SubtypeArticle
AbstractIn this paper, a simple and green preparative strategy for synthesizing carbon nanodots (CNDs) is developed by a one-pot hydrothermalmethod, using ascorbic acid (AA) as the carbon source and polyethylene glycol (PEG) with a molecular weight of 1500 as the surface modification agent. Through changing the amount ratio of PEG-1500 to AA in the synthesis, we can obtain PEG-CNDs with different functions. For example, due to the thermosensitivity of PEG-1500, the as-prepared PEG1-CNDs exhibit unique temperature sensitivity when the mass ratio of PEG-1500 to AA is 24 : 1. A reversible change of PEG1-CNDs from the solid state to transparent solution with increasing temperature can be repeated several times. The optical transmittance signal of PEG1-CNDs linearly responds to temperature in the range of 20-65 degrees C. Besides, while the amount ratio of PEG-1500 to AA is 12 : 1, the obtained PEG2-CNDs lose thermal sensitivity and form a stable and fluorescent solution at room temperature. The emission of PEG2-CNDs can be quenched by Fe3+, while with the addition of paracetamol (PAR), the fluorescence is recovered because of forming chelates between Fe3+ and PAR. Under the optimized conditions, the linear range of PAR obtained is 0.03-30 mM with a detection limit of 13 nM. Finally, the proposed method is successfully applied to detect PAR in human serum and urine samples with satisfactory recoveries.
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine ; Technology
DOI10.1039/c7ay01180f
WOS KeywordINJECTION SPECTROPHOTOMETRIC DETERMINATION ; ONE-STEP SYNTHESIS ; FLOW-INJECTION ; DOTS ; ACETAMINOPHEN ; ELECTRODE ; PHARMACEUTICALS ; HYDROLYSIS ; LIPOSOMES ; GRAPHENE
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China (Youth Fund Project)(21405093) ; Scientific Research Foundation of Qufu Normal University(BSQD20130117)
WOS Research AreaChemistry ; Food Science & Technology ; Spectroscopy
WOS SubjectChemistry, Analytical ; Food Science & Technology ; Spectroscopy
WOS IDWOS:000411506500007
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/9806
Collection中国科学院西北高原生物研究所
Corresponding AuthorQu, Fei; You, Jinmao
Affiliation1.Qufu Normal Univ, Key Lab Life Organ Anal, Qufu 273165, Shandong, Peoples R China
2.Qufu Normal Univ, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China
3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Qu, Fei,Xue, Fangfang,Liu, Jing,et al. Preparation of carbon nanodots capped by polyethylene glycol as a multifunctional sensor for temperature and paracetamol[J]. ANALYTICAL METHODS,2017,9(31):4533-4538.
APA Qu, Fei,Xue, Fangfang,Liu, Jing,&You, Jinmao.(2017).Preparation of carbon nanodots capped by polyethylene glycol as a multifunctional sensor for temperature and paracetamol.ANALYTICAL METHODS,9(31),4533-4538.
MLA Qu, Fei,et al."Preparation of carbon nanodots capped by polyethylene glycol as a multifunctional sensor for temperature and paracetamol".ANALYTICAL METHODS 9.31(2017):4533-4538.
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