Guangdong Ocean University

Zhang Hu

Sidong Li

Lefan Li

Chengpeng Li

Mingneng Liao

Jingyuan Guo

Yu Cheng

Wenhua Wang

Chengyong Li

Songzhi Kong

Di Wang

Pengzhi Hong

Sitong Lu

Qianqian Ouyang

Lingyu Zhang

Gaorong Li

Tuanzhang Li

Na Huang

Rongqiong Luo

The disclosure relates to the technical field of solar seawater desalination, in particular to an all-weather solar seawater desalination device and a method. Through a prepared composite hydrogel evaporator, the water in seawater is evaporated into steam and condensed into fresh water. By combining solar energy with a long afterglow luminous device, the composite hydrogel evaporator is irradiated by solar energy to evaporate during the day, while at night, the light energy released by the long afterglow luminous device continues to maintain the evaporation process.

All-weather solar seawater desalination device and method

The present disclosure provides a hydrogel tablet for relieving alcoholism and protecting the liver as well as the preparation process and application thereof. The present disclosure firstly provides a composition with the effects of relieving alcoholism and protecting the liver, which comprises the following components on the basis of weight parts: 20˜40 parts of chitosan, 25˜55 parts of sodium alginate, 3˜20 parts of gelatin, 1˜10 parts of calcium carbonate and 0.05˜0.5 parts of gallic acid. Based on this composition, the present disclosure further provides a hydrogel tablet for relieving alcoholism and protecting the liver. In the present disclosure, chitosan, sodium alginate and calcium carbonate are compounded at an appropriate proportion to form powder particles of chitosan/sodium alginate (shell)-calcium carbonate (core), into which are additionally added gelatin and gallic acid to get a product that is the hydrogel tablet.

Hydrogel tablet for relieving alcoholism and protecting the liver as well as preparation process and application thereof

A composite antibacterial hydrogel dressing, a preparation method and an application method thereof are provided, which relate to the field of biomedical technologies. The composite antibacterial hydrogel dressing is made from the following raw materials in parts by weight: 8 to 22 parts of chitosan, 12 to 36 parts of carrageenan, 9 to 25 parts of 2-aminoisonicotinic acid, 3 to 8 parts of lactic acid, 4 to 10 parts of iodine and 6 to 15 parts of potassium iodide. The composite antibacterial hydrogel dressing has a good flexibility, a strong antibacterial effect, a long antibacterial time, no skin irritation, good application prospect in the field of medical wound repair, simple preparation process and easy industrial production.

Composite antibacterial hydrogel dressing, preparation method and application thereof

A composite material for rapid blood clotting and its preparation method are provided. The composite material includes the following raw materials in parts by weight: 8˜20 parts of chitosan, 7˜14 parts of salicylaldehyde, 8˜16 parts of 2-aminoisonicotinic acid, 1.5˜3.5 parts of ferrous sulfate, 3˜5 parts of dopa, and 10˜15 parts of disodium hydrogen phosphate. The composite material for rapid blood clotting has good stability, high biological safety, significant effects on blood clotting, simple process, and easy industrial production.

Composite material for rapid blood clotting and preparation method thereof

A method for preparing a carbon nano tube/polyacrylic acid hydrogel, a product and an application thereof are provided. The method includes: oxidizing a carbon nanotube into a carboxylated carbon nanotube, thereafter performing in-situ polymerization with acrylic acid, sodium hydroxide, ammonium persulfate, triethanolamine and N, N-methylenebisacrylamide to obtain a carbon nanotube/polyacrylic acid hydrogel. The hydrogel has a uniform porous structure, facilitating a rapid transmission and supply of water. The carbon nanotubes in the hydrogel are of an array structure, achieving a full absorption of solar energy to realize a high-efficiency photothermal conversion. The gel is attached to a sponge base to obtain a solar-powered carbon nano tube/polyacrylic acid hydrogel steam generator for the photothermal conversion. The steam generator is used for solar seawater desalination, but can improve evaporation rate and evaporation efficiency. In addition, the steam generator has many advantages, such as energy conservation, environmental protection, simplicity and practicability.

Method for preparing carbon nanotube/polyacrylic acid hydrogel, product and application thereof

A composite hydrogel sponge and its preparation method and application, and a solar desalination device are provided. The composite hydrogel sponge includes a water supply layer and an evaporation layer disposed on the water supply layer. A material of the water supply layer is polyacrylamide hydrogel, and a material of the evaporation layer is polyacrylamide/graphene composite hydrogel. The polyacrylamide/graphene composite hydrogel includes the polyacrylamide hydrogel and the graphene dispersed in the polyacrylamide hydrogel. The composite hydrogel sponge has a special porous structure of the sponge, which is beneficial to the rapid transmission and supply of water; meanwhile, the graphene on the surface of the evaporation layer can fully receive solar energy to achieve higher photo-thermal conversion efficiency.

Composite hydrogel sponge and its preparation method and application, solar desalination device

A wound-healing and hemostatic sponge of squid ink polysaccharide/chitosan, a preparation method and use thereof are provided. The sponge comprises squid ink polysaccharide and chitosan as carriers and calcium chloride as an initiator for blood coagulation, and the wound-healing and hemostatic sponge of squid ink polysaccharide/chitosan is achieved via a lyophilization technology. Particularly, the preparation method comprises slowly adding a squid ink polysaccharide solution to a chitosan solution to form a uniformly mixed solution, adding a calcium chloride solution to the uniformly mixed solution, forming a gel followed by the gel being frozen and then lyophilized, and achieving the product. The wound-healing and hemostatic sponge has a good absorbing-errhysis effect, a good pro-coagulant effect, fast hemostasis and a complete hemostatic effect, without secondary re-hemorrhage. Moreover, the wound-healing and hemostatic sponge can promote wound healing, re-epithelialization and repair of epidermis and dermis, with strong wound-healing ability, good biocompatibility, weak toxic side effects and irritation, belonging to a novel wound-healing and hemostatic material. Moreover, the preparation method is reliable, fast, and low cost.

Growing community of inventors

Zhanjiang, China

Zhang Hu