Highly sensitive and reusable mercury (II) sensor based on fluorescence quenching of pyrene moiety in polyacrylamide-based cryogel

Şahin, Zeynep Münteha; Alimli, Dilek; Tonta, Magdalena Maria; Köse, Muhammet; Yılmaz, Faruk

doi:10.1016/j.snb.2016.11.048

Cited by 31 publications

(9 citation statements)

References 35 publications

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“…Of course, many other kinds of materials could be designed and fabricated for sensing Hg 2+ ions based on this mechanism. [62][63][64]…”

Section: Fluorescent Sensor Based On the Static Quenching Mechanismmentioning

confidence: 99%

Recent advances in fluorescent materials for mercury(ii) ion detection

Zhou

2023

RSC Adv.

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“…Of course, many other kinds of materials could be designed and fabricated for sensing Hg 2+ ions based on this mechanism. [62][63][64]…”

Section: Fluorescent Sensor Based On the Static Quenching Mechanismmentioning

confidence: 99%

Recent advances in fluorescent materials for mercury(ii) ion detection

Zhou

2023

RSC Adv.

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“…A recent review by Alessandrello et al discusses achievements in the usage of various PVA-entrapped bacteria strains (Rhodococcus spp., Bacillus spp., Pseudomonas taiwanensis, Acinetobacter baumannii, Rhodococcus opacus and Rhodococcus ruber) [89].Other immobilisation techniques for the efficient remediation of water from polyaromatic hydrocarbons and oil-polluted waters were investigated by Serebrennikova et al [90] A reusable fluorescent ion-sensing cryogels polyacrylamide (PAAm-Pyr) obtained via the post functionalisation of macroporous PAAm-Pyrgel with a pyrene moiety was developed for the detection of extremely low concentrations (2 ppb) of mercury (Hg 2+ ) in aqueous solutions. This material possessed high selectivity for Hg 2+ in the occurrence of competitive ions in water [91].…”

Section: Applications Of Macroporous Cryogels For the Remediation Of mentioning

confidence: 99%

Polymeric Materials Used for Immobilisation of Bacteria for the Bioremediation of Contaminants in Water

2021

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Bioremediation is a key process for reclaiming polluted soil and water by the use of biological agents. A commonly used approach aims to neutralise or remove harmful pollutants from contaminated areas using live microorganisms. Generally, immobilised microorganisms rather than planktonic cells have been used in bioremediation methods. Activated carbon, inorganic minerals (clays, metal oxides, zeolites), and agricultural waste products are acceptable substrates for the immobilisation of bacteria, although there are limitations with biomass loading and the issue with leaching of bacteria during the process. Various synthetic and natural polymers with different functional groups have been used successfully for the efficient immobilisation of microorganisms and cells. Promise has been shown using macroporous materials including cryogels with entrapped bacteria or cells in applications for water treatment and biotechnology. A cryogel is a macroporous polymeric gel formed at sub-zero temperatures through a process known as cryogelation. Macroporous hydrogels have been used to make scaffolds or supports for immobilising bacterial, viral, and other cells. The production of composite materials with immobilised cells possessing suitable mechanical and chemical stability, porosity, elasticity, and biocompatibility suggests that these materials are potential candidates for a range of applications within applied microbiology, biotechnology, and research. This review evaluates applications of macroporous cryogels as tools for the bioremediation of contaminants in wastewater.

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“…In our previous work, we have shown a synthetic strategy towards preparation of a fluorescence‐active cryogel (PAAm‐Pyr) by clicking fluorescence active molecule ‘pyrene’ to the polyacrylamide‐based cryogel [31] . By using this innovative approach, PAAm‐Pyr was used as a fluorescent sensing material in water.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Polyacrylamide‐Based Redox Active Cryogel Using Click Chemistry and Investigation of Its Electrochemical Properties

et al. 2021

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Ferrocene (Fc) functionalization of macroporous polyacrylamide‐based cryogel (PAAm‐Epx) is achieved by click chemistry. For this purpose, firstly, PAAm‐Epx cryogel with azide functionality (PAAm‐N3) is prepared by using acryalmide (AAm) as the monomer and allyl glycidyl ether (AGE) as the co‐monomer followed by subsequent ring opening reaction of epoxide ring of AGE in acidic medium. Azide groups of PAAm‐N3 is then modified with ethynyl ferrocene, leading to the redox active cryogel (PAAm−Fc) together with preserving the unique characteristic properties of the virgin PAAm‐Epx cryogel. Swelling, mechanical and morphological behaviours of PAAm‐Epx, PAAm‐N3 and PAAm−Fc are investigated. Detailed characterization of the PAAm−Fc is carried out by several techniques such as FTIR (Fourier Transform Infrared Spectroscopy), Scanning electron microscopy with energy dispersive X‐ray spectroscopy (SEM‐EDX), Inductively Coupled Plasma Optical Emmision Spectrometry (ICP‐OES, Cyclic (CV), and Differential Pulse Voltammetry (DPV). Electrochemical analysis confirms the electroactivity and the presence of chemically linked ferrocene unit to the cryogel.

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Highly sensitive and reusable mercury (II) sensor based on fluorescence quenching of pyrene moiety in polyacrylamide-based cryogel

Cited by 31 publications

References 35 publications

Recent advances in fluorescent materials for mercury(ii) ion detection

Recent advances in fluorescent materials for mercury(ii) ion detection

Polymeric Materials Used for Immobilisation of Bacteria for the Bioremediation of Contaminants in Water

Synthesis of Polyacrylamide‐Based Redox Active Cryogel Using Click Chemistry and Investigation of Its Electrochemical Properties

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