Provided are compositions and methods for visualizing the skeletal tissues of a biological specimen, comprising treating the specimen with a calcium chelating agent, a staining solution, and a clearing solution.

Provided are compositions and methods for visualizing the skeletal tissues of a biological specimen, comprising treating the specimen with a calcium chelating agent, a staining solution, and a clearing solution.

Provided are materials and processes for removing nitrogen dioxide gas from a sample by contacting the sample with a filtration media that includes a MOF, optionally an amine containing MOF. The resulting filtration media has the ability to sequester nitrogen dioxide with little conversion to nitric oxide, is stable, and highly functional so as to be useful in protective equipment or other filtration systems.

Provided are materials and processes for removing nitrogen dioxide gas from a sample by contacting the sample with a filtration media that includes a MOF, optionally an amine containing MOF. The resulting filtration media has the ability to sequester nitrogen dioxide with little conversion to nitric oxide, is stable, and highly functional so as to be useful in protective equipment or other filtration systems.

The present invention provides modified sophorolipids comprising taurine for improved foaming performance. The present invention also provides compositions comprising the modified sophorolipids formulated for cosmetics and personal care products. Further provided are methods for improving skin conditions, enhancing and/or maintaining the oral health, and cleaning, enhancing and/or maintaining heathy hair of a subject.

The present invention provides modified sophorolipids comprising taurine for improved foaming performance. The present invention also provides compositions comprising the modified sophorolipids formulated for cosmetics and personal care products. Further provided are methods for improving skin conditions, enhancing and/or maintaining the oral health, and cleaning, enhancing and/or maintaining heathy hair of a subject.

Disclosed is a novel method of preparing highly pure calcobutrol using an intermediate (butrol) of gadobutrol without using highly pure gadobutrol. This method is capable of obtaining calcobutrol at high purity and high yield through a simple and environmentally friendly process, and thus can be easily applied to mass production.

The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:0.1-1000. The invention also provides a production method of poly--caprolactone or polyactide, wherein an -caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly--caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly--caprolactone or polylactide with a high efficiency. The molecular weight of polycaprolactone or polylactide can be controlled by the molar ratio of the metal alkoxide complex and the hydroxy-containing compound, and is adjustable in the range of 1000-600,000, and wherein the molecular weight distribution is from 1.03 to 1.50.
[X.sub.n-mM(OCR.sub.1R.sub.2R.sub.3).sub.m].sub.y.(organic solvent).sub.z (I)

The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:0.1-1000. The invention also provides a production method of poly--caprolactone or polyactide, wherein an -caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly--caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly--caprolactone or polylactide with a high efficiency. The molecular weight of polycaprolactone or polylactide can be controlled by the molar ratio of the metal alkoxide complex and the hydroxy-containing compound, and is adjustable in the range of 1000-600,000, and wherein the molecular weight distribution is from 1.03 to 1.50.
[X.sub.n-mM(OCR.sub.1R.sub.2R.sub.3).sub.m].sub.y.(organic solvent).sub.z (I)

Sorbent compositions that include a base sorbent material having a high porosity and surface area and a boron-selective agent are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs). By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron at relatively low cost is provided.