Pesticide Macroscopic Recognition by a Naphthol-Appended Calix[4]arene

Zeng, Xiangfei; Ma, Junkai; Luo, Li; Yang, Lanlan; Cao, Xianliang; Tian, Demei; Li, Haibing

doi:10.1021/acs.orglett.5b01075

Cited by 46 publications

(19 citation statements)

References 31 publications

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“…The self-assembly of macroscopic droplets is of long-standing and continuing interest owing to its fundamental and technological relevance. [1][2][3] Fore xample,t he attachment of herbicide droplets on leaf surfaces by self-assembly plays an important role in the adsorption of the herbicide by crops,as it can reduce the amount of herbicide [4][5][6] required. So far,the study of the self-assembly processes mainly focused on static structures, [7][8][9][10] but dynamic systems are largely unexplored and pose ag reat challenge.F or instance,h ow to control the dynamic self-assembly of specific herbicide droplet on the surface?…”

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Dynamic Self‐Assembly Adhesion of a Paraquat Droplet on a Pillar[5]arene Surface

et al. 2016

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The adhesion of herbicide droplets on leaf surfaces plays an important role in the herbicide's adsorption by crops. How to control the adhesive binding which occurs through dynamic self-assembly between the macroscopic droplet and the surface is a challenging task. We introduce a host onto surfaces that controls the binding of guests in the paraquat droplets. The pillar[5]arene-functional surface showed the selective binding of paraquat droplets via the host-guest interaction. The work is promising for improving the efficiency of herbicides.

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“…Them icro-structured silicon surfaces,w hich mimic the surfaces of leaves, [4][5][6] have been selected as as ubstrate.T he silicon surface topography was observed by SEM (Figure S10). The P5A-functionalized silicon surface was constructed by click reaction.…”

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Dynamic Self‐Assembly Adhesion of a Paraquat Droplet on a Pillar[5]arene Surface

et al. 2016

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“…Kamel and coworkers also reported Eu carboxycoumarin complexes for the detection of pesticides . Few other groups reported different type of complexes for pesticide detection in other organic medium –,, Zeng et al .…”

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“…− Zeng et al . reported a napthol‐appended calix[4] arene for the detection of metolcarb in acetonitrile . Some other material including quantam dot, organic complexes are reported for the detection of pesticides in buffer medium and mixed solvent medium ,–.…”

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Highly Selective Aqueous Phase Detection of Azinphos‐Methyl Pesticide in ppb Level Using a Cage‐Connected 3D MOF

Singha¹,

Majee

Mondal

et al. 2017

ChemistrySelect

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A new metal-organic framework (MOF) [Cd 2.5 (PDA)(tz) 3 ] {PDA = 1,4-Phenylenediacetate and tz = 1,2,4-triazolate}, 1, has been synthesized by solvothermal reaction. The structure and morphology of 1 was systematically characterized by Powder X-ray diffraction (PXRD), Single crystal X-ray diffraction (SCXRD), Thermogravimetric analysis (TGA), Infrared spectroscopy (IR) and Field emission scanning electron microscopy (FESEM). Single crystal X-ray data of 1 confirmed cage connected threedimensional structure with three different types of Cd 2 + ions (square pyramidal, trigonal antiprism and octahedral geometries). Photoluminescence study of 1 in aqueous medium showed emission at 290 nm upon excitation at 225 nm. This emissive property was used for the highly selective and sensitive detection of azinphos-methyl pesticide in aqueous medium through luminescence quenching. Compound 1 is able to detect azinphos-methyl with a detection limit of 16 ppb and its sensitivity remains unchanged in the presence of other pesticides.

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“…[30][31] Even though such a challenge can be overcome by designing a system that can form an effect of enantioselective host-guest complex with the drug molecule. [32][33][34][35][36][37][38] In our previous work, chiral recognition of drug enantiomers was realized through host-guest interactions. Furthermore, the weak chiral signal was transformed into the macroscopic selective behavior which presented the selective adsorption of the drop of (S)-isomer on the functional surface.…”

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A Chirality/Light Dual‐Responsive Calixarene‐Functionalized Gold Surface for the Separation of Naproxen Enantiomers

Quan

Wan

et al. 2019

ChemPlusChem

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Chiral and photo‐responsive calix[4]arene (trans CAC4) host system that can be adsorbed onto gold surfaces was rationally designed and produced in quantitative yields. Chiral recognition through strong host–guest interaction between trans CAC4 and (R)‐naproxen was confirmed by fluorescence titration and 1H NMR analysis. Functionalization of the gold surface with trans CAC4 was demonstrated by increased contact angle and XPS measurement. Photoswitching by trans‐cis isomerization of CAC4 and CAC4‐modified gold surfaces was confirmed by UV‐vis spectroscopy and contact angle experiments. Trans CAC4‐modified gold surfaces showed selective adsorption towards (R)‐naproxen, while cis CAC4‐modified gold surfaces did not show any distinctive interaction with (R)/(S)‐naproxen. Langmuir isothermal plots and LSCM studies proved quantitative adsorption of (R)‐naproxen by the trans CAC4‐modified surface. This study demonstrated chiral recognition of a drug system by visual macroscopic changes, which may be used as a convenient methodology to separate bioactive enantiomers.

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Pesticide Macroscopic Recognition by a Naphthol-Appended Calix[4]arene

Cited by 46 publications

References 31 publications

Dynamic Self‐Assembly Adhesion of a Paraquat Droplet on a Pillar[5]arene Surface

Dynamic Self‐Assembly Adhesion of a Paraquat Droplet on a Pillar[5]arene Surface

Highly Selective Aqueous Phase Detection of Azinphos‐Methyl Pesticide in ppb Level Using a Cage‐Connected 3D MOF

A Chirality/Light Dual‐Responsive Calixarene‐Functionalized Gold Surface for the Separation of Naproxen Enantiomers

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