The photothermal response of plasmonic nanomaterials can be exploited for a number biomedical applications in diagnostics (biosensing and optoacoustic imaging) therapy (drug delivery therapy). most common cellular to cancer treatment (ablation solid tumors) using is necrosis, process that releases intracellular constituents into the extracellular milieu producing detrimental inflammatory responses. Here we report use laser-induced employing gold nanoprisms (NPRs) specifically induce...

Abstract Filtration is an established water‐purification technology. However, due to low flow rates, the filtration of large volumes water often not practical. Herein, we report alternative purification approach in which a magnetic nanoparticle composite used remove organic, inorganic, microbial, and microplastics pollutants from water. The based on polyoxometalate ionic liquid (POM‐IL) adsorbed onto microporous core–shell Fe 2 O 3 /SiO particles, giving POM‐supported phase (magPOM‐SILP)....

Back and forth: A concerted reversible redox reaction occurs in a pure metal oxide extended polyoxometalate framework when the accessible pockets are filled with suitable agent (see picture). Direct control over properties is demonstrated by repeated switching between an expanded contracted structure. Successive recrystallizations from hot water repeatedly destroys regenerates framework. Detailed facts of importance to specialist readers published as "Supporting Information". Such documents...

The simultaneous removal of organic, inorganic, and microbial contaminants from water by one material offers significant advantages when fast, facile, robust purification is required. Herein, we present a supported ionic liquid phase (SILP) composite where each component targets specific type contaminant: polyoxometalate-ionic (POM-IL) immobilized on porous silica, giving the heterogeneous SILP. water-insoluble POM-IL composed antimicrobial alkylammonium cations lacunary polyoxometalate...

Abstract Corrosion of stone by acid rain and deterioration from biofilms are global problems for industrial residential buildings as well cultural heritage, such statues or historic buildings. Herein we show how typical building stones can be protected corrosion (“weathering”) biofilm formation (“biodeterioration”) application thin films polyoxometalate‐based ionic liquids (POM‐ILs). Stone samples coated with hydrophobic, resistant POM‐ILs featuring biocidal properties. Exposure the to...

A route to unravel and the complexities of polyoxometalates in solution using electrospray mass spectrometry is presented. This reveals limited speciation clusters organic solvent compared that aqueous allows unambiguous assignment protonation states cluster as a function heteroatom inclusion.

Cubanisches Herz: Der rechts im Bild gezeigte Komplex (WO6 lila Polyeder, Mn orange und braun, Si grün, O rot) enthält einen gemischtvalenten {Mn5O6}-Cubankern mit Strukturähnlichkeit zum aktiven Zentrum des Photosystems II. Festkörper-, Lösungs- Gasphasenstudien sprechen für das Vorhandensein dreier lakunärer Keggin-Fragmente geben so Einblick in die komplexe Lösungschemie vollständiger Polyoxometallatfragmente.

We describe why the cyclic heteropolyanion [P8W48O184]40– (abbreviated as {P8W48}) is an ideal building block for construction of intrinsically porous framework materials by classifying and analyzing >30 coordination polymers incorporating this polyoxometalate (POM) ligand. This analysis shows that exocyclic first-row transition metals (TMs) to {P8W48} typically yields frameworks which extend through {W–O–TM–O–W} bridges in one, two, or three dimensions. However, despite rich structural...

We explore the concept that incorporation of polyoxometalates (POMs) into complementary metal oxide semiconductor (CMOS) technologies could offer a fundamentally better way to design and engineer new types data storage devices, due enhanced electronic complementarity with SiO2, high redox potentials, multiple states accessible polyoxometalate clusters. To this we constructed custom-built simulation domain bridge. Connecting DFT, for quantum mechanical modelling part, mesoscopic device...

Microorganisms offer an alternative green and scalable technology for the synthesis of value added products. Fungi secrete high quantities bioactive substances, which play dual-functional roles as both reducing stabilizing agents in colloidal metal nanoparticles such silver nanoparticles, display potent antimicrobial properties that can be harnessed a number industrial applications. The aim this work was production using extracellular cell free extracts Phanerochaete chrysosporium, to...

Two polyoxometalate open framework (POMOF) materials have been synthesized using a secondary building unit (SBU) approach that facilitates the convergent assembly of multidimensional preassembled anionic SBU {P8W48}, with integrated "pore" 1 nm in diameter, and electrophilic manganese {Mn2+} linkers. This yields two new POMOFS augmented hexagonal tiling (2 3), related to known three-dimensional (3D) cubic array K18Li6[MnII8(H2O)48P8W48O184]·108H2O (1), K12[MnII14(H2O)30P8W48O184]·111H2O (2),...

Abstract The design of highly flexible framework materials requires organic linkers, whereas inorganic are more robust but inflexible. Here, by using linkable rings made up tungsten oxide (P 8 W 48 O 184 ) building blocks, we synthesized an single crystal material that can undergo at least eight different crystal-to-crystal transformations, with gigantic volume contraction and expansion changes ranging from −2,170 to +1,720 Å 3 no reduction in crystallinity. Not only does this the largest...

The antibacterial activity of imidazole and imidazolium salts is highly dependent upon their lipophilicity, which can be tuned through the introduction different hydrophobic substituents on nitrogen atoms or ring molecule. Taking this into consideration, we have synthesized characterized a series derived from L-valine L-phenylalanine containing groups tested against two model bacterial strains, Gram-negative E. coli Gram-positive B. subtilis. Importantly, results demonstrate that minimum...

Developing artificial metalloenzymes that possess a superior performance to their natural counterparts is an attractive concept. Polyoxometalates (POMs) are class of anionic molecular metal-oxides with excellent redox properties and bioactivity. We have recently introduced "POMlymers" - covalently conjugated POM-peptide hybrid materials where the polypeptide chain obtained through ring-opening polymerisation (ROP) α-amino acid N-carboxyanhydrides (NCA) on inorganic POM scaffold. Attracted by...

Two cyclic cobalt-substituted heteropolyoxometalates K15Li5[Co10(H2O)34(P8W48O184)]·54H2O (1) and K8Li12[Co10(H2O)44(P8W48O184)]·60H2O (2) have been synthesised from the reaction of Co(II) ions superlacunary {P8W48} polyanion in mildly acidic aqueous media. The cluster's anion cavities are filled with K cations careful manipulation conditions determines formation distinct Co-linked frameworks.

Two topologically equivalent triangular POM aggregates based upon the Keggin (1) and Dawson (2) cluster species, with distinctive double {W–O–M} intra-molecular linkages involving MnIII CoIII ions are presented; both these compounds demonstrate electrocatalytic activity.

The cooperative chemistry of polyoxometalates (POMs) and metal nanoparticles (NPs) still remains a relatively unexplored area nanoscience despite showing remarkable potential application in fields as diverse catalysis medicine. This Highlight article reviews the principal synthetic approaches used preparation NPs using POMs reducing stabilising agents. It also details various POM/NP composite materials, exploring recent advances their application, provides personal view on future research this area.

Using a time-dependent synthetic approach, the construction of new class macrocyclic tungstotellurite heteropolyacid cluster-squares, [W28Te8O112]24− (1a), [W28Te9O115]26− (2a) and [W28Te10O118]28− (3a) has been achieved. Isolation these architectures is facilitated by tellurite anions, which act as templates within structural building units linkers between them, well pendant ligands subsequently control inter-cluster aggregation, thereby defining architectural principle in assembly...