Duplex functional G-quadruplex/NMM fluorescent probe for label-free detection of lead(II) and mercury(II) ions

Zhu, Qian; Liu, Lanhua; Xing, Yunpeng; Zhou, Xin

doi:10.1016/j.jhazmat.2018.04.082

Cited by 68 publications

(31 citation statements)

References 39 publications

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“…Based on the importance of copper detection, gold nanoclusters were used for the detection of Cu 2+ , which have been developed by Xing et al They introduced gold nanoclusters supported on wool keratin (AuNCs@WK) solutions in which WK molecules are active group. Further, HAuCl 4 and NaOH were added in to solution.…”

Section: Resultsmentioning

confidence: 99%

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A novel optical probe based on d‐penicillamine‐functionalized graphene quantum dots: Preparation and application as signal amplification element to minoring of ions in human biofluid

Pashazadeh-Panahi

Hasanzadeh

Eivazzadeh‐Keihan

2020

J of Molecular Recognition

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In this study, d‐penicillamine‐functionalized graphene quantum dots (DPA‐GQD) has been synthesized, which significantly increases the fluorescence intensity of GQD. We used this simple fluorescent probe for metal ions detection in human plasma samples. Designed DPA‐GQD respond to Hg2+, Cu2+, Au2+, Ag+, Co2+, Zn2+, and Pb2+ with high sensitivity. The fluorescence intensity of this probe decreased significantly in the presence of metal ions such as, Hg2+, Cu2+, Au2+, Ag+, Co2+, Zn2+, and Pb2+. In this work, a promising probe for ions monitoring was introduced. Moreover, DPA‐GQD probe has been tested in plasma samples. The functionalized DPA‐GQDs exhibits great promise as an alternative to previous fluorescent probes for bio‐labeling, sensing, and other biomedical applications in aqueous solution.

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Section: Resultsmentioning

confidence: 99%

“…Above all, this is a vital factor for a variety of enzymes and exhibits antioxidant properties. 67 Based on the importance of copper detection, [67][68][69][70][71][72][73][74][75][76][77][78][79] DPA-functionalized graphene quantum dots are a new approach to detect Cu 2+ (Fig. 6A-C).…”

Section: Fluorescence Response To Cu 2+mentioning

confidence: 99%

A novel optical probe based on d‐penicillamine‐functionalized graphene quantum dots: Preparation and application as signal amplification element to minoring of ions in human biofluid

Pashazadeh-Panahi

Hasanzadeh

Eivazzadeh‐Keihan

2020

J of Molecular Recognition

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“…Interestingly, G4 structures have been also exploited to develop a duplex functional fluorescent biosensor for distinct detection of Pb 2+ and Hg 2+ [67]. A K + -induced fluorescent G4 probe was assembled by a G-rich strand and a porphyrin.…”

Section: Biosensing Methodsmentioning

confidence: 99%

Bio-Recognition in Spectroscopy-Based Biosensors for *Heavy Metals-Water and Waterborne Contamination Analysis

et al. 2019

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: Microsystems and biomolecules integration as well multiplexing determinations are key aspects of sensing devices in the field of heavy metal contamination monitoring. The present review collects the most relevant information about optical biosensors development in the last decade. Focus is put on analytical characteristics and applications that are dependent on: (i) Signal transduction method (luminescence, colorimetry, evanescent wave (EW), surface-enhanced Raman spectroscopy (SERS), Förster resonance energy transfer (FRET), surface plasmon resonance (SPR)); (ii) biorecognition molecules employed (proteins, nucleic acids, aptamers, and enzymes). The biosensing systems applied (or applicable) to water and milk samples will be considered for a comparative analysis, with an emphasis on water as the primary source of possible contamination along the food chain.

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“…A multi-target biosensor based on K + -induced fluorescent G-quadruplex and N-methyl mesoporphyrin IX could change into a more stably non-fluorescent G-quadruplex structure as adding Pb 2+ or Hg 2+ . The fluorescence decreased as the DNA structure changed, allowing detection of Pb 2+ and Hg 2+ with a LOD of 5 and 18.6 nM, respectively (Zhu et al, 2018 ). The simultaneous detection of Pb 2+ and Ag + in food and water samples was developed using single-labeled fluorescent DNA sensor.…”

Section: Functional Fluorescent Deoxynucleic Acid For Heavy Metal Ionmentioning

confidence: 99%

Recent Developments in Fluorescent Materials for Heavy Metal Ions Analysis From the Perspective of Forensic Chemistry

Lian

Wang

et al. 2020

Front. Chem.

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Duplex functional G-quadruplex/NMM fluorescent probe for label-free detection of lead(II) and mercury(II) ions

Cited by 68 publications

References 39 publications

A novel optical probe based on d‐penicillamine‐functionalized graphene quantum dots: Preparation and application as signal amplification element to minoring of ions in human biofluid

A novel optical probe based on d‐penicillamine‐functionalized graphene quantum dots: Preparation and application as signal amplification element to minoring of ions in human biofluid

Bio-Recognition in Spectroscopy-Based Biosensors for *Heavy Metals-Water and Waterborne Contamination Analysis

Recent Developments in Fluorescent Materials for Heavy Metal Ions Analysis From the Perspective of Forensic Chemistry

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