871268-56-3Relevant articles and documents
Metal-Controlled Aggregation-Deaggregation in Calixarene-Based Self-Assemblies
Lhotak, Pavel,Shinkai, Seiji
, p. 4829 - 4832 (1995)
Supramolecular self-assemblies of complementary components 1 or 2 (calixarene derivatives with two or four 2,6-diaminopyridine units, respectively) and 3 (5,5-dialkyl barbituric acids) in chloroform-acetonitrile solution were confirmed by 1H NMR spectroscopy and light scattering.While derivative 1 interacts with 3 only after addition of Na(1+) cation, which disrupts intramolecular hydrogen bonds, compound 2 creates a complex with 3 even without the presence of Na(1+) cation, indicating much weaker intramolecular bonds in this derivative.
Calixarenes functionalised water-soluble iron oxide magnetite nanoparticles for enzyme immobilisation
Sayin, Serkan,Ozyilmaz, Elif,Oguz, Mehmet,Yusufoglu, Rüstem,Yilmaz, Mustafa
, p. 334 - 344 (2020/03/30)
In this study, we first used water-soluble iron oxide nanoparticles for Candida rugosa lipase immobilisation. Moreover, two new complexation phenomena of the prepared water-soluble Fe3O4 nanoparticles with an enzyme might address int
Luminescent behavior of pyrene-allied calix[4]arene for the highly pH-selective recognition and determination of Zn2+, Hg2+ and I-: Via the CHEF-PET mechanism: Computational experiment and paper-based device
Sutariya, Pinkesh G.,Soni, Heni,Gandhi, Sahaj A.,Pandya, Alok
, p. 9855 - 9864 (2019/07/04)
In this article, for the first time, we have reported a novel CHEF-PET fluorescence sensor L based on calix[4]arene containing four pyrene groups as binding sites, which is highly selective and sensitive towards Zn2+, Hg2+ and I-. This fluorescence probe was synthesized and characterized using the emission study, UV-vis titration, 1H NMR spectroscopy and ESI-MS investigation. The linear concentration range at pH 7 of L for Zn2+, Hg2+ and I- is 0-135 nM, 0-140 nM and 0-120 nM, respectively, with the detection limit of 6.43 nM for Zn2+, 2.94 nM for Hg2+ and 20.93 nM for I-. The binding ability was determined through Benesi-Hildebrand equation, which was found to be 7.535 × 108 M-1 for Zn2+, 9.001 × 108 M-1 for Hg2+ and 8.139 × 108 M-1 for I-. Further, we reported an easy-to-use, low-cost and disposable paper-based sensing device for the rapid chemical screening of Zn2+, Hg2+ and I-. The device comprises luminescent sensing probes embedded into a cellulose matrix, where the resonance energy transfer phenomenon seems to be the sensing mechanism. It opens up new opportunities for simple and fast screening in remote settings, where sophisticated instrumentation is not always available. The MOPAC-2016 software package was used to optimize the L using the well-established PM7 method and calculate the HOMO-LUMO energy band gap for structure L and L with Zn2+, Hg2+ and I- ion-based structures. The molecular docking study was carried out using HEX software.
