A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag<sup>+</sup>

Lu, Zhixiang; Liu, Yunming; Lu, Shuhan; Li, Yuan; Liu, Xiaolan; Qin, Yu; Zheng, Liyan

doi:10.1039/c8ra03591a

Cited by 36 publications

(19 citation statements)

References 66 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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“…Fluorescence detection methods have attracted increasing attention in the past few years, because they present the advantages of high selectivity and sensitivity, and they can be applied to real-time detection. As such, fluorescence detection methods are more convenient than traditional instrumental methods [14,15,16,17]. Several fluorescent probes for detecting Ag + have been developed.…”

Section: Introductionmentioning

confidence: 99%

A Sensitive Near-Infrared Fluorescent Probe for Detecting Heavy Metal Ag+ in Water Samples

Zhang

Yao

et al. 2019

Sensors

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Silver is a common catalyst in industrial production, and the frequent use of Ag+ can cause water pollution. Thus, the detection of Ag+ in the environment is necessary to determine the level of pollution from silver. In this work, we designed a new, highly selective near-infrared (NIR) fluorescent probe QCy to detect Ag+. The probe exhibits “turn-off” fluorescence quenching responses at 760 nm towards Ag+ over other relevant cations, with outstanding sensitivity and a low detection limit (0.03 µM), which is considerably lower than the standard of the World Health Organization (WHO) for drinking water (0.9 µM). Meanwhile, QCy showed a very good linearity at a low concentration of Ag+ with a ‘naked eye’ visible color change of solution from blue to red. The probe has been applied successfully for the detection of Ag+ in real water samples.

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“…Nowadays, silver is considered one of the most harmful and worldwide contaminants, with a simple impact on the aquatic biota and public health [10]. Therefore, the selective recognition of Ag + offers significant advantages so that many different analytical approaches have been investigated [11,12]. However, most of these methods have common limitations such as high cost, time consumption, and low sensitivity [13].…”

Section: Introductionmentioning

confidence: 99%

Dual Functional S-Doped g-C3N4 Pinhole Porous Nanosheets for Selective Fluorescence Sensing of Ag+ and Visible-Light Photocatalysis of Dyes

2019

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This study explores the facile, template-free synthesis of S-doped g-C3N4 pinhole nanosheets (SCNPNS) with porous structure for fluorescence sensing of Ag+ ions and visible-light photocatalysis of dyes. As-synthesized SCNPNS samples were characterized by various analytical tools such as XRD, FT-IR, TEM, BET, XPS, and UV–vis spectroscopy. At optimal conditions, the detection linear range for Ag+ was found to be from 0 to 1000 nM, showing the limit of detection (LOD) of 57 nM. The SCNPNS exhibited highly sensitive and selective detection of Ag+ due to a significant fluorescence quenching via photo-induced electron transfer through Ag+–SCNPNS complex. Moreover, the SCNPNS exhibited 90% degradation for cationic methylene blue (MB) dye within 180 min under visible light. The enhanced photocatalytic activity of the SCNPNS was attributed to its negative zeta potential for electrostatic interaction with cationic dyes, and the pinhole porous structure can provide more active sites which can induce faster transport of the charge carrier over the surface. Our SCNPNS is proposed as an environmental safety tool due to several advantages, such as low cost, facile preparation, selective recognition of Ag+ ions, and efficient photocatalytic degradation of cationic dyes under visible light.

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A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag⁺

Abstract: We develop a highly selective TPE-based AIE fluorescent probe containing a benzimidazole group for the detection of Ag+.

Cited by 36 publications

References 66 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

A Sensitive Near-Infrared Fluorescent Probe for Detecting Heavy Metal Ag+ in Water Samples

Dual Functional S-Doped g-C3N4 Pinhole Porous Nanosheets for Selective Fluorescence Sensing of Ag+ and Visible-Light Photocatalysis of Dyes

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A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag+

Abstract: We develop a highly selective TPE-based AIE fluorescent probe containing a benzimidazole group for the detection of Ag+.

Cited by 36 publications

References 66 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

A Sensitive Near-Infrared Fluorescent Probe for Detecting Heavy Metal Ag+ in Water Samples

Dual Functional S-Doped g-C3N4 Pinhole Porous Nanosheets for Selective Fluorescence Sensing of Ag+ and Visible-Light Photocatalysis of Dyes

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A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag⁺