Themed collection Vanadium Science: Chemistry, Catalysis, Materials, Biological and Medicinal Studies

Welcome to this New Journal of Chemistry themed issue entitled “Vanadium Science: Chemistry, Catalysis, Materials, Biological and Medicinal Studies”.

Nanocrystalline V(V)-doped hydroxyapatite and its reduced analogue (V(V) and V(IV) mixture) show promising in vitro cytotoxicity against cultured human bone cancer cells.

Inorganic functionalization of the decavanadate anion promotes a different type of interaction with model proteins thaumatin, lysozyme, proteinase K, human serum albumin and transferrin.

MetfDeca treatment ameliorate glucose and insulin levels, and reduce the levels of oxidized glutathione, reactive oxygen species, malondialdehyde, and 4-hydroxyalkenal; the superoxide and catalase activities, and glutathione levels were regulated.

Appropriately designed Schiff-base substrates enhance V(V)-bioavailability and insulin-mimetic biomolecular gene profiling, inducing adipogenesis in a structure-specific manner.

VO(dmpp)₂ ameliorates liver metabolic profile of obese pre-diabetic Zucker rats after 4 weeks of treatment, as demonstrated by ex vivo¹H-HRMAS NMR study.

The vanadyl–oxindolimine complex as an antitumor agent.

A vanadium oxide nanorod (V_nr) catalyst has been synthesized without using surfactants through crystallization, which is highly active for benzene to phenol oxidation.

Intriguing structure–activity relationships (SARs) indicating an apparent dependence of anticancer and haloperoxidase activities on the carbon chain length of the alkoxo group.

V^IVO, Cu^II and Zn^II complexes from three new naphthoylhydrazones were screened towards their ability to bind albumin and their cytotoxicity.

A sustainable procedure developed for the bromination of organic substrates, such as olefins and small aromatic rings, has been applied to porphyrin derivatives.

One-dimensional supramolecular structure with [H₂V₁₀O₂₈]⁴⁻ units was synthesized and experimental-theoretical characterized as potential releasing prodrug of the decavanadate ion.

[V^IVO(L-H)₂] and [V^VO(OCH₃)(L-H)₂] compounds of 8-hydroxyquinoline derivatives L showed activity against Trypanosoma cruzi and Leishmania infantum and high selectivities. Metallomics and interaction with BSA, apo-HTF and DNA were studied.

Configurations of oxidovanadium centers in diastereomeric complexes with chiral sugar ligands are assigned and in the solid state triggered by the coordination number at the vanadium center through the steric requirements of the chelate ligand.

A double-cubane-type hexamanganese complex that is reminiscent of the structure of an oxygen evolution center was synthesized using a polyoxovanadate ligand.

New insights in the electronic properties of mixed-valence polyoxovanadoborate clusters.

Catalytic direct hydrazination of allyl alcohol and deoxygenative homocoupling reaction of alcohols depending on hydrazine derivatives were performed by utilizing oxovanadium(V) catalysts.

Synthesis and characterization of mixed ligand oxidovanadium(IV) complexes [V^IVO(L^1–4)(L^NN)] incorporating arylazo ligands: evaluation of DNA/BSA interaction and cytotoxicity activity.

A new Metvan-NLC compound was developed to improve Metvan's biopharmaceutical profile and antitumor efficacy.

Di- and trinuclear complexes of vanadium(V) and mandelic acid were prepared revealing surprising geometry of the trinuclear species.

Synthesis, characterization, in vitro cytotoxicity and catalytic potential of the dioxidovanadium(V) complexes of azohydrazones.

Two polyoxovanadate compounds, [Na₇(H₂O)₁₄][H₈V^IV₁₈O₄₂(V^VO₄)]·N₂H₄·7H₂O and [Na₅(H₂O)₁₆][H₈V^IV₁₈O₄₂(Cl)]·4N₂H₄·6H₂O, each having fully reduced host cage and accommodating eight acidic protons per formula unit, exhibit moderate proton conductivity.

This paper presents the new mixed valence heptavanadate (NH₄)₂V₇O₁₆ micro squares, a further but carbonless member of the vanadium oxide nanotubes and nanourchins family, where ammonium ions replace the long carbon chain amines.

A series of nanosized-bulk-supported Mo–V–Nb–Te catalysts was prepared. Using a new synthesis approach, nanocrystalline aggregates of the active phase were deposited on a support.

This work reports the biological evaluation of the new complex Na₂[VO(rut)(OH)₂]·5H₂O (rut = rutin, a glycosylated flavonoid).

Two oxidovanadium complexes with 4-aminobenzoic acid and/or the peroxo anion as ligands were synthesized and characterized by elemental analysis, conductivity measurements, TGA/DTA, ¹H NMR, EPR, FTIR, and UV/vis spectroscopies.

The new thiosemicarbazide and dithiocarbazate based vanadium complexes show remarkable catalytic potential for oxidation of alcohols and simple arenes.

The effect of secondary interactions (hydrogen bonds and van der Waals contacts), steric hindrance and electric charge, on the binding of V^IV complexes formed by pipemidic and 8-hydroxyquinoline-5-sulphonic acids with ubiquitin and lysozyme is studied.

V^V/IV mixed-valence polyoxofluorovanadate clusters have been synthesized through one pot preparation process. The trigonal bipyramidal coordinated vanadium atoms mimic the structure of the active site and activity of the vanadium peroxidases.

VAC treatment caused different Grp75 responses before and after Aβ plaque formation.

Catalytic activities of oxidovanadium(V) complexes towards microwave-assisted peroxidative oxidation of cyclohexane and cyclohexanol are explored by experimental and DFT calculations.

Polyoxovanadates were recently found to be the most active among a series of polyoxometalates against bacteria. In this study, a reverse correlation was found between the Ca²⁺-ATPase IC₅₀ and the E. Coli GI₅₀ values.