Journal ArticleDOI
The first highly selective turn “ON” fluorescent sensor for vanadyl (VO2+) ions: DFT studies and molecular logic gate behavior
Chitra Varadaraju,G. Tamilselvan,I.V. Muthu Vijayan Enoch,Venkatesan Srinivasadesikan,Shyi-Long Lee,P. Mosae Selvakumar +5 more
TLDR
An effective fluorescent chemosensor C1 is reported for selective recognition and detection of vanadyl ions inadium compounds that exhibit anti-tumor properties and insulin-like activity.Abstract:
Vanadium compounds exhibit anti-tumor properties and insulin-like activity, but an excess is toxic Development of a selective fluorescent chemosensor for the detection of vanadyl ions has not been reported so far For the first time, we have reported an effective fluorescent chemosensor C1 for selective recognition and detection of vanadyl ions C1 was evaluated as a turn “ON” fluorescent chemosensor for vanadyl ions (VO2+) based on a photoinduced electron transfer (PET) mechanism The association constant for the complex C1–VO2+ was found to be 419 × 104 M−1 C1 also behaves as a NOT molecular logic gate where H+ and VO2+ were given as inputs The proposed binding mode between C1 and vanadyl ions was explained using DFT calculationsread more
Citations
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Journal ArticleDOI
On/Off Fluorescent Chemosensor for Selective Detection of Divalent Iron and Copper Ions: Molecular Logic Operation and Protein Binding
TL;DR: Here, naphthalene diamine-based β-diketone derivative (compound LH) was successfully used as a dual signaling probe for divalent cations, Fe2+ and Cu2+ ions, in bimodal methods (colorimetric and fluorometric).
Journal ArticleDOI
Differential Metal Ion Sensing by an Antipyrine Derivative in Aqueous and β-Cyclodextrin Media: Selectivity Tuning by β-Cyclodextrin.
Govindaraj Tamil Selvan,Sumathi Poomalai,Sivaraj Ramasamy,Paulraj Mosae Selvakumar,Israel V.M.V. Enoch,Sara Gràcia Lanas,Andrea Melchior +6 more
TL;DR: This is the first report of selectivity of two different cations by a chemosensor in water and in β-CD, and the antipyrine-cyclodextrin complex is optimized by two-dimensional rotating-frame Overhauser effect spectroscopy.
Journal ArticleDOI
Evaluation of metal ion sensing behaviour of fluorescent probe along with its precursors: PET-CHEF mechanism, molecular logic gate behaviour and DFT studies
Chitra Varadaraju,Mosae Selvakumar Paulraj,G. Tamilselvan,I.V. Muthu Vijayan Enoch,Venkatesan Srinivasadesikan,Lee Shyi-Long +5 more
TL;DR: In this paper, the metal ion sensing behavior of a fluorescent probe APAP (derivative of 4-amino/4-formyl antipyrine) along with its precursors was reported.
Journal ArticleDOI
Superior light absorbing CdS/vanadium sulphide nanowalls@TiO2 nanorod ternary heterojunction photoanodes for solar water splitting
TL;DR: In this article, the authors reported the application of highly textured photon trapping infrared active vanadium sulphide nanowalls sensitized with visible active CdS nanoparticles supported on ultraviolet (UV) active TiO2 nanorods to obtain a wide range of light absorbance throughout the solar spectrum.
Journal ArticleDOI
Simple and efficient rhodamine-derived VO2+ and Cu2+-responsive colorimetric and reversible fluorescent chemosensors toward the design of multifunctional materials
Jiang Daoyong,Xue Xingying,Guoning Zhang,Yucheng Wang,Han Zhang,Chao Feng,Zhifei Wang,Hong Zhao +7 more
TL;DR: A rhodamine-based derivative, (Z)-2-((3,5-dibromo-2-hydroxybenzylidene)amino)-3′,6′-bis(diethylamino)spiro-[isoindoline-1,9′-xanthen]-3-one (RhDBS), has been chosen as a representative dual chemosensor for VO2+ and Cu2+ among twenty-five Schiff-base receptors as discussed by the authors.
References
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