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      A PET based fluorescent chemosensor with real time application in monitoring formaldehyde emissions from plywood

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          Abstract

          A simple, robust fluorescent chemodosimeter capable of detecting nanomolar levels of formaldehyde with applicability in monitoring formaldehyde emissions from plywood.

          Abstract

          An easily synthesized (7-nitrobenz-2-oxa-1,3-diazole) NBD piperazine conjugate, NPC, has been successfully employed for the fluorogenic sensing of the hazardous substance, formaldehyde (FA), based on the inhibition of photoinduced electron transfer (PET) as a consequence of formimine creation, which was proven by ESI-MS analysis. The probe has been found to be highly selective with a low response time of 2 min. The robust sensor NPC has been used to demonstrate its practical applicability in detecting vapor phase FA through emissions from plywood samples. The cell permeability has also been exploited to demonstrate the possibility of intracellular FA estimation using this probe.

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          Effective Formaldehyde Capture by Green Cyclodextrin-Based Metal–Organic Framework

          Lu Wang, Xiang-Yong Liang, Zhi-Yi Chang … (2017)
          A kind of metal-organic framework made from γ-cyclodextrin (γ-CD) and potassium ions were explored as excellent formaldehyde (HCHO) absorbents. The adsorption capacity and speed of γ-CD-MOF-K are both about 9 times higher than those of activated carbon, which are attributed to the porous structure and synergistic effect of hydrogen bonding and host-guest interactions.
          Article 0 comments Cited 37 times – based on 0 reviews     Review now
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            Chromogenic Detection of Aqueous Formaldehyde Using Functionalized Silica Nanoparticles.

            Félix Sancenón, Ana M Costero, Maurizio Licchelli … (2016)
            Silica nanoparticles functionalized with thiol reactive units and bulky polar polyamines were used for the selective colorimetric detection of formaldehyde. The reaction of thiols groups in the nanoparticles surface with a squaraine dye resulted in loss of the π-conjugation of the chromophores, and the subsequent bleaching of the solution. However, when formaldehyde was present in the suspension, the thiol-squaraine reaction was inhibited and a chromogenic response was observed. A selective response to formaldehyde was observed only when the thiol and polyamine groups were anchored to the silica surface. The observed selective response was ascribed to the fact that bulky polyamines generate a highly polar environment around thiols, which were only able to react with the small and polar formaldehyde, but not with other aldehydes. The sensing nanoparticles showed a limit of detection (LOD) for formaldehyde of 36 ppb in water.
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              A ratiometric fluorescent formaldehyde probe for bioimaging applications

              Longwei He, Xueling Yang, Yong K. Liu … (2016)
              The first ratiometric fluorescent formaldehyde probe ( RFFP ) has been engineered for bio-applications. We have described a ratiometric fluorescent formaldehyde probe (RFFP) based on the 6-hydroxy naphthalene chromophore for the first time. The probe is suitable for ratiometric detection of formaldehyde both in the solution and living biological samples with two distinct emission bands.
              Article 0 comments Cited 15 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): AMNECT
                Title: Analytical Methods
                Abbreviated Title: Anal. Methods
                Publisher: Royal Society of Chemistry (RSC)
                ISSN (Print): 1759-9660
                ISSN (Electronic): 1759-9679
                Publication date Created: 2018
                Publication date (Electronic): 2018
                Volume: 10
                Issue: 24
                Pages: 2888-2894
                Affiliations
                [1 ]Department of Chemistry
                [2 ]Indian Institute of Engineering Science and Technology
                [3 ]Howrah-711103
                [4 ]India
                [5 ]Centre for Healthcare Science and Technology
                [6 ]Shibpur
                Article
                DOI: 10.1039/C8AY00514A
                SO-VID: 7109e6de-061f-47e4-a1da-400c4fab7554
                Copyright © © 2018
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                http://rsc.li/journals-terms-of-use

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