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143 results about "Saponite" patented technology

Saponite is a trioctahedral mineral of the smectite group. Its chemical formula is Ca0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂·n(H₂O). It is soluble in sulfuric acid. It was first described in 1840 by Svanberg. Varieties of saponite are griffithite, bowlingite and sobotkite.

Nanometer composite gel dressing containing baicalin and soapstone and preparation method for nanometer composite gel dressing

The invention relates to a nanometer composite gel dressing containing baicalin and soapstone and a preparation method for the nanometer composite gel dressing. The nanometer composite gel dressing containing the baicalin and the soapstone comprises the following ingredients of: alkyl acrylamide monomers, inorganic nanometer soapstone grains, an initiator, a catalyst, the baicalin, deionized water and absolute ethanol. The preparation method comprises the following steps of: (1) dispersing the inorganic nanometer soapstone grains; (2) preparing a gel dressing; (3) purifying the gel dressing; and (4) adsorbing the baicalin by the gel dressing. The preparation method has the core that the nanometer composite gel dressing crosslinkd with the soapstone is soaked in absolute ethanol solution of the baicalin. The nanometer composite gel dressing is high in biocompatibility and antibacterial performance, and can be used for skin trauma, ulcers, burn, scald and other skin diseases. The nanometer composite gel dressing and the preparation method have the advantages that a preparation process is simple, the condition is mild, the transparency and toughness of the dressing are high, and the absorption and release of the baicalin are controllable.
Owner:TIANJIN POLYTECHNIC UNIV

Hyaluronic acid modified hectorite amide nanoparticle and preparation and application of hyaluronic acid modified hectorite amide nanoparticle

The invention relates to a hyaluronic acid-modified amide hectorite nanoparticle and a preparation and an application of the hyaluronic acid modified hectorite amide nanoparticle. The hyaluronic acid modified hectorite amide nanoparticle is (3-amino propyl) ethoxydimethylsilane modified hectorite; and the mass fraction of the hyaluronic acid in the nanoparticle is 17.17%-19.09%. The preparation method comprises the following steps: modifying a hectorite surface with (3-amino propyl) ethoxydimethylsilane on to obtain hectorite amide; and through covalent action of amino and carboxyl, grafting the hectorite amide surface with hyaluronic acid, thus obtaining the hyaluronic acid modified hectorite amide nanoparticle. The stability and the biocompatibility of the nanoparticle are improved; meanwhile, the hyaluronic acid-modified hectorite amide nanoparticle has specific targeting action on cancer cells with high expression for a CD44 receptor, and can be applied to targeted delivery of anti-cancer drugs; and the hyaluronic acid-modified hectorite amide nanoparticle is simple in preparation method, mild in reaction condition and easy to operate, and has an industrial implementation prospect.
Owner:DONGHUA UNIV
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