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1.
J Biomed Nanotechnol ; 16(4): 481-491, 2020 Apr 01.
Article En | MEDLINE | ID: mdl-32970980

There is continued interest in Nano Carbon Materials (NCMs) and two of these, Fullerene C60 and Graphene have received Nobel prizes. Low solubility in most solvents has been a stumbling block in their industrial use. We report here the successful synthesis of a new water soluble tri-adduct of Fullerene C60 using a two-step procedure to obtain the water soluble s-Tri-(1-aziridino-2, 3-dimethoxy-benzene-5-carboxylato-6-carboxylic acid)-H-Fullerene C60-Manganese (II) Complex ( III ). Matrix Assisted Laser Desorption Ionization Mass Spectrometry (MALDI-MS) and Electron Paramagnetic Resonance (EPR) studies critically helped recognize the presence of an atom of Manganese in the complex. The new complex was also characterized by Ultra violet-Visible (UV-Vis.). Fourier Transform-Infra Red (FT-IR) spectroscopy, Energy Dispersive X-ray analysis (EDAX), Scanning Electron Microscopy (SEM), Thermal Gravimetric Analysis (TGA), and powder X-ray diffraction. The new compound has been shown to possess anti-cancer activity comparable to Doxorubicin, currently the most used anti-cancer drug. This new water soluble Fullerene C60-Manganese (II) tri-adduct complex ( III ) thus holds much promise for the fields of biology, biochemistry, medicine, and materials science.


Fullerenes/chemistry , Doxorubicin/pharmacology , Manganese , Spectroscopy, Fourier Transform Infrared , Water
2.
ACS Omega ; 5(16): 9585-9597, 2020 Apr 28.
Article En | MEDLINE | ID: mdl-32363311

Inositol hexakisphosphate (InsP6; phytic acid) is considered as the second messenger and plays a very important role in plants, animals, and human beings. It is the principal storage form of phosphorus in many plant tissues, especially in dry fruits, bran, and seeds. The resulting anion is a colorless species that plays a critical role in nutrition and is believed to cure many diseases. A fluoresceinated aminohexanol tethered inositol hexakisphosphate (III) had been synthesized earlier involving many complicated steps. We describe here a simple two-step synthesis of (III) and its characterization using different techniques such as matrix-assisted laser desorption ionization mass spectrometry, tandem mass spectrometry, and Fourier transform infrared, ultraviolet-visible, ultraviolet-fluorescence, 1H nuclear magnetic resonance (NMR), and two-dimensional NMR spectroscopies. The effect of (III) has been investigated in the model systems, Arabidopsis thaliana and Drosophila melanogaster. Using Schrodinger software, computational studies on the binding of (III) with the protein 2P1M (Auxin-receptor TIR1-adaptor ASK1 complex) has revealed strong binding propensity with this compound. These studies on the fluoresceinated tethered phytic acid could have far reaching implications on its efficacy for human health and treatment of diseases (cancer/tumor and glioblastoma) and for understanding phosphorous recycling in the environment, especially for plant systems.

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