Abstract: A method for preparing a modified cellulose aerogel for glycoprotein separation is provided. In this method, cellulose aerogel is employed as a substrate. The cellulose aerogel is known to have a three-dimensional network structure with extremely high porosity and specific surface area and extremely low density. So, by using the cellulose aerogel as a substrate, it is possible to provide the glycoproteins to be separated with more binding sites. PEI dendrimer has abundant functional groups and can easily be modified. By modifying the cellulose aerogel substrate with the PEI dendrimer, it is possible to improve the density of the phenylboronic acid bound to the substrate, thereby leading to higher affinity toward the glycoproteins to be separated.

Abstract: A method for preparing a conductive biomimetic skin scaffold material with self-repairing function includes the following steps: adding 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride to a homogeneous dispersion of acidified carbon nanotubes, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), and gelatin to cross-link to obtain a conductive composite colloid; and injecting the conductive composite colloid into a mold, aging at ?4-4° C. for 12-24 hours, and then soaking in a phosphate-buffered saline (PBS) solution with a pH of 7.0-7.4 for 12-24 hours to obtain the conductive biomimetic skin scaffold material.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I) is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A POSS modified polyacrylate fluorine-free waterproofing agent includes following components: 1-10 wt % of a functionalized POSS monomer, 2-20 wt % of methyl methacrylate, 3-26 wt % of butyl acrylate, 1-10 wt % of a long-chain acrylate monomer, 0.5-3.5 wt % of an initiator, 0.5-4 wt % of a reactive cationic emulsifier, and 50-80 wt % of deionized water. A method of preparing a POSS modified polyacrylate fluorine-free waterproofing agent is also disclosed.

Abstract: The disclosure discloses an enzymatic method for preparation of lecithin polyunsaturated fatty acids (PUFAs), and belongs to the technical field of separation and application of enzyme. A heat treatment procedure is added after a reaction substrate is in contact with an enzyme to adjust the ratio of sn-1 lysophospholipid PUFAs to sn-2 lysophospholipid PUFAs in a reaction product and to promote the production of sn-2 lysophospholipid PUFAs, thereby promoting the production of lecithin PUFAs, which greatly increases the production efficiency of lecithin PUFAs and the lecithin PUFA content in the product. With simple operations and high reaction rate, the method can significantly increase the content of lecithin PUFAs in the product, can effectively avoid the oxidation of PUFA, and has high economic benefits and promising industrial application prospects.

Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I) is disclosed. The methods of preparing the compound of formula (I) are also disclosed.

Abstract: A method for increasing bulkiness of reconstituted tobacco by adding tobacco stem particles includes (1) pulverizing a first portion of tobacco stems to obtain tobacco stem particles; (2) classifying the tobacco stem particles with mesh sieves and selecting the tobacco stem particles with a predetermined mesh size; (3) extracting a second portion of the tobacco stems with water and grinding to form a tobacco stem slurry that has a beating degree of 12-14° SR, and mixing the tobacco stem slurry with tobacco leaves in a weight ratio of 6:4 and grinding to obtaining a tobacco slurry that has a beating degree of 18-20° SR; (4) cutting plant fiber pulp boards and dispersing in water to form a plant fiber pulp; (5) preparing a filler solution that contains 10 wt % of a mineral filler; (6) mixing, rolling and drying to obtain the reconstituted tobacco.

Abstract: A method of preparing an aramid paper coated with aramid nanofibers includes the following steps: (1) mixing a meta-aramid fibrid slurry and a chopped meta-aramid fiber slurry, filtering, pressing and drying to obtain a meta-aramid paper; (2) mixing potassium hydroxide, deionized water, dimethyl sulfoxide, and para-aramid nanofibers in a container, and stirring to obtain a para-aramid nanofiber coating solution; and (3) applying the para-aramid nanofiber coating solution to a first side of the meta-aramid paper, washing with deionized water, and drying; applying the para-aramid nanofiber coating solution to a second side of the meta-aramid paper, washing with deionized water, and drying; and hot pressing to obtain the aramid paper coated with aramid nanofibers.

Abstract: The present invention discloses a method for designing a refiner plate with equidistant curved bars, comprising following steps of: designing a central bar are of center curved bar and defining the bar angle for the equidistant curved bar; designing circle arcs for curved bars on two sides of center curved bar of equidistant curved bar segment; when the whole refining segment is full of circle arcs, trimming lines of outer circle arcs of the refining segment to complete the design of equidistant circle arcs on the two sides; and if required, dividing the bars into zones. In the present invention, by the definition of the bar angle for the curved bars and the parametric design of the equidistant curved bars by using circle are equations, it is ensured that the flexibility in designing an equidistant curved bar refiner plate is improved.

Abstract: A compound having the formula (I): (I) is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A method of preparing a hydroxytyrosol sturgeon skin gelatin film with antioxidant activity and Salmonella detection ability includes: (1) mixing a neutral red indicator solution and distilled water at room temperature to obtain a mixture solution, and adding 1 mol/L NaHCO3 solution to the mixture solution until discoloration to obtain an alkaline solution; (2) adding an amount of the alkaline solution obtained in step (1) to a mixture of Sturgeon skin gelatin and distilled water to obtain an alkaline gelatin solution; (3) adding hydroxytyrol and glycerin and propylene glycol to the alkaline gelatin solution to obtain a hydroxytyrol gelatin solution, and heating the hydroxytyrol gelatin solution at 40-70° C.; (4) ultrasonicating the hydroxytyrol gelatin solution from step (3), placing the hydroxytyrol gelatin solution evenly on a clean plexiglass plate, drying the hydroxytyrol gelatin solution on an ultra-clean worktable to obtain the hydroxytyrosol sturgeon skin gelatin film.

Abstract: A compound having the formula (I): is disclosed. Methods of preparing the compound of formula (I) are also disclosed. The compound of formula (I) can be prepared by reacting a compound of formula (II) with a compound of formula (III) in an organic solvent with EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide). The compound of formula (I) can also be prepared by reacting the compound of formula (II) with the compound of formula (III) in 1-ethyl-3-methylimidazolium hexafluorophosphate as a solvent with silicomolybdic acid as a catalyst.

Abstract: A preparation method of a tetragonal NaV2O5.H2O nanosheet-like powder includes steps of: (S1) simultaneously adding NaVO3 and Na2S.9H2O into deionized water, and then magnetically stirring, and obtaining a black turbid solution; (S2) sealing after putting the black turbid solution into an inner lining of a reaction kettle, fixing the sealed inner lining in an outer lining of the reaction kettle, placing the reaction kettle into a homogeneous reactor, and then performing a hydrothermal reaction; and (S3) after completing the hydrothermal reaction, naturally cooling the reaction kettle to the room temperature, and then alternately cleaning through water and alcohol, and then collecting a product, drying the product, and finally obtaining the tetragonal NaV2O5.H2O nanosheet-like powder with a thickness in a range of 30-60 nm and a single crystal structure grown along a (002) crystal orientation.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: Disclosed are a superhydrophobic and self-cleaning radiative cooling film and a preparation method thereof. The preparation method includes the following steps: 1) dissolving P (VDFx-HFPy) and PDMS in a composite polar solvent to obtain a translucent composite polymer solution of P (VDFx-HFPy)/PDMS; 2) adding a non-solvent dropwise to the obtained solution to allow for a phase separation of P (VDFx-HFPy)/PDMS to form a sol; 3) casting the sol; drying the cast sol to obtain a film are porous inside with micro/nano rough structures of low surface-energy on the surface. The preparation method of the present invention is simple, and can be used for large-scale production.

Abstract: A method for preparing a collagen from a chromium-containing tanned leather waste is disclosed. The method includes acid dechromation, obtaining a collagen aggregate, and converting the collagen aggregate to the collagen. The method also includes a reaction in a supercritical carbon dioxide reactor.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.