sj-docx-1-ict-10.1177_15347354221128832 – Supplemental material for Leaf Extract and Active Fractions of Dillenia pentagyna Roxb. Reduce In Vitro Human Cancer Cell Migration Via NF-κB Pathway

Supplemental material, sj-docx-1-ict-10.1177_15347354221128832 for Leaf Extract and Active Fractions of Dillenia pentagyna Roxb. Reduce In Vitro Human Cancer Cell Migration Via NF-κB Pathway by Debapriya De, Priyanka Chowdhury, Sujogya Kumar Panda and Utpal Ghosh in Integrative Cancer Therapies</p

sj-pdf-2-ict-10.1177_15347354221128832 – Supplemental material for Leaf Extract and Active Fractions of Dillenia pentagyna Roxb. Reduce In Vitro Human Cancer Cell Migration Via NF-κB Pathway

sj-pdf-2-ict-10.1177_15347354221128832 for Leaf Extract and Active Fractions of Dillenia pentagyna Roxb. Reduce In Vitro Human Cancer Cell Migration Via NF-κB Pathway by Debapriya De, Priyanka Chowdhury, Sujogya Kumar Panda and Utpal Ghosh in Integrative Cancer Therapies</p

Synthesis and characterization of two Cu(II) complexes with a new pyrazole-based Schiff base ligand: crystallography, DNA interaction and antimicrobial activity of Ni(II) and Cu(II) complexes

<p>Reaction of Cu(II) nitrate with a new pyrazole-based Schiff base ligand, 5-methyl-3-formylpyrazole-N-(2′-methylphenoxy)methyleneimine (MPzOA), afforded two types of Cu(II) complexes at different reaction temperatures, [Cu(MP_zOA)(NO₃)]₂ (<b>1</b>) and [Cu(3,7,11,15-tetramethylporphyrin)(H₂O)](NO₃)₂ (<b>2</b>), reported together with a Ni(II) complex, [Ni(MPzOA)₂(H₂O)₂]Br₂ (<b>3</b>). The compounds are characterized by single crystal X-ray structure analyses along with several physico-chemical and spectral parameters. Complex <b>1</b> is authenticated as a bis(μ-pyrazolato)dicopper(II), while <b>2</b> is a porphyrinogen and <b>3</b> is a distorted octahedral complex. Structural analyses of the complexes reveal that <b>1</b> crystallized in monoclinic <i>P2</i>_<i>1</i><i>/n</i> space group while <b>2</b> and <b>3</b> crystallized in monoclinic <i>C2/c</i> space group. DNA-binding studies of the complexes have shown that the complexes interact with CT-DNA. DNA-cleavage studies with plasmid DNA have shown that <b>1</b> and <b>2</b> induce extensive DNA cleavage in the presence of H₂O₂ as an additive, whereas there is no change in degradation of super-coiled DNA by <b>3</b> in the presence of additive. The antimicrobial studies of the complexes against <i>Escherichia coli</i> DH5α bacteria strain indicated that all the complexes were capable of killing <i>E. coli</i> with different LD50 values.</p

Synthesis, Structure, Spectroscopic Characterization, and Protein Binding Affinity of New Water-Soluble Hetero- and Homometallic Tetranuclear [Cu^II₂Zn^II₂] and [Cu^II₄] Clusters

Two new water-soluble hetero- and homometallic tetranuclear clusters, Na₄[Cu₂Zn₂(ccdp)₂(μ-OH)₂]·CH₃OH·6H₂O (<b>1</b>) and K₃[Cu₄(ccdp)₂(μ-OH)­(μ-OH₂)]·14H₂O (<b>2</b>), have been synthesized in methanol–water at room temperature by exploiting the flexibility, chelating ability, and bridging potential of a carboxylate-rich dinucleating ligand, <i>N</i>,<i>N</i>′-bis­(2-carboxybenzomethyl)-<i>N</i>,<i>N</i>′-bis­(carboxymethyl)-1,3 diaminopropan-2-ol (H₅ccdp). Complex <b>1</b> is obtained through the self-assembly of two monoanionic [CuZn­(ccdp)]⁻ fragments, which are, in turn, exclusively bridged by two μ-OH^– groups. Similarly, complex <b>2</b> is formed through the self-assembly of two monoanionic [Cu₂(ccdp)]⁻ species exclusively bridged by one μ-OH^– and one μ-OH₂ groups. Complexes <b>1</b> and <b>2</b> are fully characterized in the solid state as well as in solution using various analytical techniques including a single-crystal X-ray diffraction study. The X-ray crystal structure of <b>1</b> reveals that two Cu^II centers are in a distorted square-pyramidal geometry, whereas two Zn^II centers are in a distorted trigonal-bipyramidal geometry. The solid-state structure of <b>2</b> contains two dinuclear [Cu₂(ccdp)]⁻ units having one Cu^II center in a distorted square-pyramidal geometry and another Cu^II center in a distorted trigonal-bipyramidal geometry within each dinuclear unit. In the powder state, the high-field EPR spectrum of complex <b>1</b> indicates that two Cu^II ions are not spin-coupled, whereas that of complex <b>2</b> exhibits at least one noninteracting Cu^II center coordinated to a nitrogen atom of the ligand. Both complexes are investigated for their binding affinity with the protein bovine serum albumin (BSA) in an aqueous medium at pH ∼7.2 using fluorescence spectroscopy. Synchronous fluorescence spectra clearly reveal that complexes <b>1</b> and <b>2</b> bind to the active sites in the protein, indicating that the effect is more pronounced toward tyrosine than tryptophan. Density functional theory calculations have been carried to find the Fukui functions at the metal sites in complexes <b>1</b> and <b>2</b> to predict the possible metal centers involved in the binding process with BSA protein

Synthesis, Structure, Spectroscopic Characterization, and Protein Binding Affinity of New Water-Soluble Hetero- and Homometallic Tetranuclear [Cu^II₂Zn^II₂] and [Cu^II₄] Clusters

Two new water-soluble hetero- and homometallic tetranuclear clusters, Na₄[Cu₂Zn₂(ccdp)₂(μ-OH)₂]·CH₃OH·6H₂O (<b>1</b>) and K₃[Cu₄(ccdp)₂(μ-OH)­(μ-OH₂)]·14H₂O (<b>2</b>), have been synthesized in methanol–water at room temperature by exploiting the flexibility, chelating ability, and bridging potential of a carboxylate-rich dinucleating ligand, <i>N</i>,<i>N</i>′-bis­(2-carboxybenzomethyl)-<i>N</i>,<i>N</i>′-bis­(carboxymethyl)-1,3 diaminopropan-2-ol (H₅ccdp). Complex <b>1</b> is obtained through the self-assembly of two monoanionic [CuZn­(ccdp)]⁻ fragments, which are, in turn, exclusively bridged by two μ-OH^– groups. Similarly, complex <b>2</b> is formed through the self-assembly of two monoanionic [Cu₂(ccdp)]⁻ species exclusively bridged by one μ-OH^– and one μ-OH₂ groups. Complexes <b>1</b> and <b>2</b> are fully characterized in the solid state as well as in solution using various analytical techniques including a single-crystal X-ray diffraction study. The X-ray crystal structure of <b>1</b> reveals that two Cu^II centers are in a distorted square-pyramidal geometry, whereas two Zn^II centers are in a distorted trigonal-bipyramidal geometry. The solid-state structure of <b>2</b> contains two dinuclear [Cu₂(ccdp)]⁻ units having one Cu^II center in a distorted square-pyramidal geometry and another Cu^II center in a distorted trigonal-bipyramidal geometry within each dinuclear unit. In the powder state, the high-field EPR spectrum of complex <b>1</b> indicates that two Cu^II ions are not spin-coupled, whereas that of complex <b>2</b> exhibits at least one noninteracting Cu^II center coordinated to a nitrogen atom of the ligand. Both complexes are investigated for their binding affinity with the protein bovine serum albumin (BSA) in an aqueous medium at pH ∼7.2 using fluorescence spectroscopy. Synchronous fluorescence spectra clearly reveal that complexes <b>1</b> and <b>2</b> bind to the active sites in the protein, indicating that the effect is more pronounced toward tyrosine than tryptophan. Density functional theory calculations have been carried to find the Fukui functions at the metal sites in complexes <b>1</b> and <b>2</b> to predict the possible metal centers involved in the binding process with BSA protein

Synthesis, Structure, Spectroscopic Characterization, and Protein Binding Affinity of New Water-Soluble Hetero- and Homometallic Tetranuclear [Cu^II₂Zn^II₂] and [Cu^II₄] Clusters

Two new water-soluble hetero- and homometallic tetranuclear clusters, Na₄[Cu₂Zn₂(ccdp)₂(μ-OH)₂]·CH₃OH·6H₂O (<b>1</b>) and K₃[Cu₄(ccdp)₂(μ-OH)­(μ-OH₂)]·14H₂O (<b>2</b>), have been synthesized in methanol–water at room temperature by exploiting the flexibility, chelating ability, and bridging potential of a carboxylate-rich dinucleating ligand, <i>N</i>,<i>N</i>′-bis­(2-carboxybenzomethyl)-<i>N</i>,<i>N</i>′-bis­(carboxymethyl)-1,3 diaminopropan-2-ol (H₅ccdp). Complex <b>1</b> is obtained through the self-assembly of two monoanionic [CuZn­(ccdp)]⁻ fragments, which are, in turn, exclusively bridged by two μ-OH^– groups. Similarly, complex <b>2</b> is formed through the self-assembly of two monoanionic [Cu₂(ccdp)]⁻ species exclusively bridged by one μ-OH^– and one μ-OH₂ groups. Complexes <b>1</b> and <b>2</b> are fully characterized in the solid state as well as in solution using various analytical techniques including a single-crystal X-ray diffraction study. The X-ray crystal structure of <b>1</b> reveals that two Cu^II centers are in a distorted square-pyramidal geometry, whereas two Zn^II centers are in a distorted trigonal-bipyramidal geometry. The solid-state structure of <b>2</b> contains two dinuclear [Cu₂(ccdp)]⁻ units having one Cu^II center in a distorted square-pyramidal geometry and another Cu^II center in a distorted trigonal-bipyramidal geometry within each dinuclear unit. In the powder state, the high-field EPR spectrum of complex <b>1</b> indicates that two Cu^II ions are not spin-coupled, whereas that of complex <b>2</b> exhibits at least one noninteracting Cu^II center coordinated to a nitrogen atom of the ligand. Both complexes are investigated for their binding affinity with the protein bovine serum albumin (BSA) in an aqueous medium at pH ∼7.2 using fluorescence spectroscopy. Synchronous fluorescence spectra clearly reveal that complexes <b>1</b> and <b>2</b> bind to the active sites in the protein, indicating that the effect is more pronounced toward tyrosine than tryptophan. Density functional theory calculations have been carried to find the Fukui functions at the metal sites in complexes <b>1</b> and <b>2</b> to predict the possible metal centers involved in the binding process with BSA protein