A fluorescent bionanocomposite is provided, as well as a composition and method of synthesis of fluorescent bionanocomposite for selective stain for gram negative bacteria.

Methods of preparing and using a metal-organic framework (MOF) are provided herein, including methods of using an MOF comprising a repeat unit of the formula [ML].sub.n, wherein M is a divalent metal ion and L is a ligand of the formula:

##STR00001##

The MOFs provided herein may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are ethylene and ethane. In some embodiments, UTSA-280 may be synthesized from calcium oxide (CaO) or calcium hydroxide (Ca(OH).sub.2) and squaric acid (SA) through mechanochemical synthesis.

A method to make metal-organic frameworks (MOFs) in which a first aqueous solution of a transition metal salt is mixed with a second aqueous solution of an imidazole or alkyl-substituted imidazole to yield a product solution containing MOF crystals. The MOF crystals are used to fabricate electrodes for electrochemical detection of nitro-aromatic compounds.

Provided herein is a coordination complex of Formula (I): wherein

##STR00001##

wherein is a coordinate bond; where M is a metal; X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, and X.sub.7 are each independently selected from a heteroatom; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.7, and R.sup.8 are each independently selected from H and a saturated or unsaturated, substituted or unsubstituted, cyclic or linear hydrocarbon comprising from 1 to 8 carbon atoms; R.sup.5 and R.sup.6 are each independently selected from H and a saturated or unsaturated, substituted or unsubstituted, cyclic or linear hydrocarbon comprising from 1 to 8 carbon atoms; and n is an integer.

The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH).sub.2 and methionine and adding metal nitrate, can be widely used as feeds and feed additives.

An object of the present invention is to provide a novel complex having at least two carbon-carbon double bonds and/or carbon-carbon triple bonds. The present invention provides a complex represented by a structural formula (2): ##STR00001## [In the structural formula (2), M.sup.1 to M.sup.4 are identical to or different from each other and represent a metal atom, R.sup.1 to R.sup.6 are identical to or different from each other and represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, at least two of R.sup.1 to R.sup.6 are the alkenyl group having 2 to 18 carbon atoms or the alkynyl group having 2 to 18 carbon atoms, and at least one of R.sup.1 to R.sup.6 is the alkyl group having 6 to 24 carbon atoms].

An especially robust compound and its derivative metal complexes that are approximately one hundred-fold superior in catalytic performance to the previously invented TAML analogs is provided having the formula (I) wherein Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 are oxidation resistant groups which are the same or different and which form 5- or 6-membered rings with a metal, M, when bound to D; at least one Y incorporates a group that is significantly more stable towards nucleophilic attack than the organic amides of TAML activators; D is a metal complexing donor atom, preferably N; each X is a position for addition of a labile Lewis acidic substituent such as (i) H, denterium, (ii) Li, Na, K, alkali metals, (iii) alkaline earth metals, transition metals, rare earth metals, which may be bound to one or more than one D, (iv) or is unoccupied with the resulting negative charge being balanced by a nonhonded counter-action; at least one Y may contain a site that is labile to acid dissociation, providing a mechanism for shortening complex lifetime. The new complexes deliver catalytic performances that promise to revolutionize multiple oxidation technology spaces including water purification.

##STR00001##

A process for the preparation of a shaped MOF, the process comprising: providing a first reactant comprising at least one metal in ionic form and a second reactant comprising at least one organic ligand capable of associating with said metal in ionic form, and optionally a solvent; allowing the first and second reactants to react to form a MOF; and forming a shaped body directly from the mixture of step b) using an extruder or continuous kneader; wherein the initial ratio of the at least one metal in ionic form to the at least one organic ligand is controlled such that shaped bodies having a minimum defined crush strength are formed without the use of an external binder or lubricant.

The present invention relates to a conjugate salt of N,N-dimethylglycine with metal and organic acid, and a preparation method and use thereof. The conjugate salt of N,N-dimethylglycine with metal and organic acid has a following structural formula: [(CH.sub.3).sub.2NCH.sub.2COO].sub.nM.[Organic acid], wherein, n is 1 or 2; M is selected from an alkali metal ion or a divalent metal ion; the organic acid is selected from an organic polyacid, a C.sub.2-C.sub.18 linear fatty acid or an aromatic acid. The conjugate salt of N,N-dimethylglycine with metal and organic acid is a conjugate acid salt formed by introducing another organic acid with a hydrophobic group into the salt of N,N-dimethylglycine and a metal ion, so as to modify the hygroscopicity of N,N-dimethylglycine by decreasing the affinity of the salt toward water molecules in the air, or decreasing the affinity or attraction of molecular aggregates formed through crystalline behavior of the salt toward water molecules in the air.

The invention relates to supramolecular metal coordinated liothyronine (triiodothyronine, T3) compositions, methods of preparing such compositions, methods of purifying and formulating supramolecular metal coordinated liothyronine, and methods of treating hypothyroidism and other disease states using such compositions.