Probe anchored porous organic polymer monolithic architectures as optical sensor for ultra-trace analysis of Hg2+ in water samples

Thirumalai, Murugan; Mitra, Suchashrita; Prabhakaran, D.; Sivaraman, N.; Rao, C. V. S. Brahmmananda; Mohan, Akhila Maheswari

doi:10.1016/j.micromeso.2022.111724

Cited by 5 publications

(3 citation statements)

References 45 publications

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“…Hg 2+ as global environmental pollutants were found in the air, soil, and water. Inorganic mercury (Hg 2+ ) can transform into neurotoxin methylmercury (MeHg) through bacterial conversion within water bodies, which can damage the human brain, lungs, and central nervous system via the food chain [ 4 , 5 , 6 , 7 ]. Therefore, the detection of trace Cl − and Hg 2+ is particularly urgent and necessary for disease diagnosis, environmental monitoring, and food safety evaluation [ 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg2+ and Cl− Based on the Au/Cu/Ti3C2 Nanosheets

Chen

Jin

et al. 2023

Molecules

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Smartphone-assisted fluorescence and colorimetric methods for the on-site detection of Hg2+ and Cl− were established based on the oxidase-like activity of the Au–Hg alloy on the surface of Au/Cu/Ti3C2 NSs. The Au nanoparticles (NPs) were constructed via in-situ growth on the surface of Cu/Ti3C2 NSs and characterized by different characterization techniques. After the addition of Hg2+, the formation of Hg–Au alloys could promote the oxidization of o-phenylenediamine (OPD) to generate a new fluorescence emission peak of 2,3-diaminopenazine (ADP) at 570 nm. Therefore, a turn-on fluorescence method for the detection of Hg2+ was established. As the addition of Cl− can influence the fluorescence of ADP, the fluorescence intensity was constantly quenched to achieve the continuous quantitative detection of Cl−. Therefore, a turn-off fluorescence method for the detection of Cl− was established. This method had good linear ranges for the detection of Hg2+ and Cl− in 8.0–200.0 nM and 5.0–350.0 µM, with a detection limit of 0.8 nM and 27 nM, respectively. Depending on the color change with the detection of Hg2+ and Cl−, a convenient on-site colorimetric method for an analysis of Hg2+ and Cl− was achieved by using digital images combined with smartphones (color recognizers). The digital picture sensor could analyze RGB values in concentrations of Hg2+ or Cl− via a smartphone app. In summary, the proposed Au/Cu/Ti3C2 NSs-based method provided a novel and more comprehensive application for environmental monitoring.

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Section: Introductionmentioning

confidence: 99%

Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg2+ and Cl− Based on the Au/Cu/Ti3C2 Nanosheets

Chen

Jin

et al. 2023

Molecules

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“…Since the emergence of Minamata disease in Minamata Bay, Japan in 1956, people have never paid less attention to mercury (Hg). As a notorious toxic heavy metal, mercury species can complete the cycle process in the biosphere in various forms of elemental, inorganic and organic mercury, 1,2 of which inorganic mercury in water easily transforms into organic mercury with stronger fat solubility, such as methylmercury, which can easily enter the human body through the food chain, causing irreversible damage to the human endocrine system, liver and bone. [3][4][5][6] In view of the great harm caused by mercury to the ecological environment and human health, the detection and removal of mercury ions (Hg 2+ ) in water and organisms has always been a topic of widespread concern.…”

Section: Introductionmentioning

confidence: 99%

A novel water-soluble naphthalimide-based turn-on fluorescent probe for mercury ion detection in living cells and zebrafish

Liu

Liang

et al. 2022

New J. Chem.

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“…12 Conjugated microporous polymers (CMPs) are a fascinating class of porous organic polymers (POPs). Because of their π conjugated and light-emitting properties, CMPs have potential applications in fluorescence detecting various chemicals, [14][15][16] for example, metal ions, [17][18][19][20][21] NACs, 22,23 medicines, 24 pesticides, 25 and amines, 26 and so on. In particular, heteroatom-rich CMPs have good fluorescence sensing properties against o-NP due to their electron-rich frameworks and chemical sites interacting with o-NP.…”

mentioning

confidence: 99%

Triphenylamine‐ and triazine‐based conjugated microporous polymers constructing from triphenylamine and its derivatives with nitrogen as core for fluorescence sensing o‐nitrophenol

Wang

Tong-mou

et al. 2023

Journal of Polymer Science

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Three triphenylamine‐ and s‐triazine‐based conjugated microporous polymers (TTPA, TTDATA, and TTMDATA) were prepared via the Friedel−Crafts arylation reactions under the catalytic action of CH3SO3H. In virtue of containing rich nitrogen atoms in their porous frameworks, the obtained TTPA, TTDATA, and TTMDATA possess good fluorescence sensing property for o‐nitrophenol (o‐NP) with high quenching coefficients of 1.54 × 104, 1.32 × 104, 1.33 × 103 L mol−1 and low limits of detection (LODs) of 2.44 × 10−9, 1.14 × 10−11, and 1.35 × 10−8 mol L−1, respectively. The fluorescent quenching mechanism of TTPA for selective sensing o‐NP is the photo‐induced charge‐transfer mechanism. However, the fluorescent quenching mechanisms of TTDATA and TTMDATA for selective sensing o‐NP have both the photo‐induced charge‐transfer mechanism and the resonant energy transfer mechanism.

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Probe anchored porous organic polymer monolithic architectures as optical sensor for ultra-trace analysis of Hg2+ in water samples

Cited by 5 publications

References 45 publications

Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg2+ and Cl− Based on the Au/Cu/Ti3C2 Nanosheets

Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg2+ and Cl− Based on the Au/Cu/Ti3C2 Nanosheets

A novel water-soluble naphthalimide-based turn-on fluorescent probe for mercury ion detection in living cells and zebrafish

Triphenylamine‐ and triazine‐based conjugated microporous polymers constructing from triphenylamine and its derivatives with nitrogen as core for fluorescence sensing o‐nitrophenol

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