One-step facile synthesis of novel β-amino alcohol functionalized carbon dots for the fabrication of a selective copper ion sensing interface based on the biuret reaction

Wang, Xi; Shen, Xin; Li, Bingzhi; Jiang, Guoyi; Zhou, Xuemin; Jiang, Huijun

doi:10.1039/c5ra24348c

Cited by 19 publications

(7 citation statements)

References 48 publications

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“…Li et al used citric acid and poly(ethylenimine) (PEI) as raw materials and synthesized CDs with an average diameter of ~ 4.5 nm and 48.3 ± 5.3% of QY by heating the aqueous solution of citric acid and PEI at 110 °C for 2 h [ 56 ]. The use of this method to synthesize CDs from small molecules has also been reported by several other researchers [ 6 , 13 , 38 , 54 , 55 , 57 – 70 ].…”

Section: Methods Of Synthesis Of Cdssupporting

confidence: 59%

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Small molecules derived carbon dots: synthesis and applications in sensing, catalysis, imaging, and biomedicine

2019

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Carbon dots (CDs) are the new fellow of carbon family having a size less than 10 nm and attracted much attention of researchers since the last decade because of their unique characteristics, such as inexpensive and facile synthesis methods, easy surface modification, excellent photoluminescence, outstanding water solubility, and low toxicity. Due to these unique characteristics, CDs have been extensively applied in different kind of scientific disciplines. For example in the photocatalytic reactions, drug-gene delivery system, in vitro and in vivo bioimaging, chemical and biological sensing as well as photodynamic and photothermal therapies. Mainly two types of methods are available in the literature to synthesize CDs: the top-down approach, which refers to breaking down a more massive carbon structure into nanoscale particles; the bottom-up approach, which refers to the synthesis of CDs from smaller carbon units (small organic molecules). Many review articles are available in the literature regarding the synthesis and applications of CDs. However, there is no such review article describing the synthesis and complete application of CDs derived from small organic molecules together. In this review, we have summarized the progress of research on CDs regarding its synthesis from small organic molecules (bottom-up approach) via hydrothermal/solvothermal treatment, microwave irradiation, ultrasonic treatment, and thermal decomposition techniques as well as applications in the field of bioimaging, drug/gene delivery system, fluorescence-based sensing, photocatalytic reactions, photo-dynamic therapy (PDT) and photo-thermal (PTT) therapy based on the available literature. Finally, the challenges and future direction of CDs are discussed.

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Section: Methods Of Synthesis Of Cdssupporting

confidence: 59%

“… Sodium nitrate, histidine Hydrothermal treatment – Indigo 1.5 [ 69 ] 24. l -Phenylalaninol Hydrothermal carbonization – Violet 2.8 [ 38 ] 25. Folic acid, phosphoric acid Hydrothermal treatment Folic acid, phosphoric acid (d) Indigo 13.2 ± 1.6 [ 67 ] 26.…”

Section: Methods Of Synthesis Of Cdsmentioning

confidence: 99%

Small molecules derived carbon dots: synthesis and applications in sensing, catalysis, imaging, and biomedicine

2019

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“…[19][20][21] Because of these properties, various researches have investigated their applications. [22][23][24] Chen et al synthesized CDs for label-free detection of Hg 2+ and Ag + . 25,26 Along with the development of sensitive ion studies, CDs can also be served as effective probes for dopamine, H 2 O 2 and theranostic.…”

Section: Introductionmentioning

confidence: 99%

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

et al. 2016

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A simple method was designed for detecting cobalt ions (Co 2+ ) based on the analyte induced fluorescence quenching of carbon dots (CDs). CDs with a quantum yield of 38.7% were synthesized by hydrothermal treatment of carbopol 934 and diethylenetriamine. Through the metal-ligand interaction, the prepared CDs can highly sensitive and selective detection of Co 2+ . The color changes (from transparent to brown) of the solution can be clearly seen with naked eye. This effective sensing platform shows high sensitivity and selectivity towards Co 2+ . Moreover, the CDs are also successfully utilized for monitoring natural water quality about Co 2+ contents.

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“…Given the size-dependent tunable photoluminescence (PL), high quantum yield, broad excitation spectra, low photobleaching, and low toxicity of PS NPs, they thereby present a viable means to increasing the sensitivity of Cu detection 16 17 18 . Various methods have been reported for the synthesis of such PS NPs 9 10 11 12 13 14 15 , including their fabrication from Si wafers via electrochemical wet etching 19 as previously demonstrated by our group. Interestingly, previous studies on PS NPs report that oxide-terminated silicon NPs often experience PL-quenching under a variety of conditions 20 21 22 , in which Cu 2+ can dramatically reduce the quantum efficiency of porous silicon by capturing excited carriers and interrupting radiative recombination processes 23 24 .…”

mentioning

confidence: 99%

“…Various functionalized nanoparticles have been examined for their ability to detect specific metal ions 9 10 11 12 . In particular, monocrystalline silicon wafers – used in chemical sensors 13 , energy harvesting 14 , and solar cells 15 – are used to generate porous silicon nanoparticles (PS NPs).…”

mentioning

confidence: 99%

Sensitive detection of copper ions via ion-responsive fluorescence quenching of engineered porous silicon nanoparticles

Hwang

Choi

et al. 2016

Sci Rep

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Heavy metal pollution has been a problem since the advent of modern transportation, which despite efforts to curb emissions, continues to play a critical role in environmental pollution. Copper ions (Cu2+), in particular, are one of the more prevalent metals that have widespread detrimental ramifications. From this perspective, a simple and inexpensive method of detecting Cu2+ at the micromolar level would be highly desirable. In this study, we use porous silicon nanoparticles (NPs), obtained via anodic etching of Si wafers, as a basis for undecylenic acid (UDA)- or acrylic acid (AA)-mediated hydrosilylation. The resulting alkyl-terminated porous silicon nanoparticles (APS NPs) have enhanced fluorescence stability and intensity, and importantly, exhibit [Cu2+]-dependent quenching of fluorescence. After determining various aqueous sensing conditions for Cu2+, we demonstrate the use of APS NPs in two separate applications – a standard well-based paper kit and a portable layer-by-layer stick kit. Collectively, we demonstrate the potential of APS NPs in sensors for the effective detection of Cu2+.

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One-step facile synthesis of novel β-amino alcohol functionalized carbon dots for the fabrication of a selective copper ion sensing interface based on the biuret reaction

Abstract: The detection strategy of β-amino alcohol functionalized carbon dots for Cu2+ based on the biuret reaction.

Cited by 19 publications

References 48 publications

Small molecules derived carbon dots: synthesis and applications in sensing, catalysis, imaging, and biomedicine

Small molecules derived carbon dots: synthesis and applications in sensing, catalysis, imaging, and biomedicine

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

Sensitive detection of copper ions via ion-responsive fluorescence quenching of engineered porous silicon nanoparticles

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