Nanjing Tech University

Nanjing University of Technology

Changshu Yutyrone Advanced Wear Materials Technology Co., Ltd.

Nanjing Taiwei Technology Co., Ltd.

Other

Xiaohua Lu

Yi Shan Jiang

Wu Chen

Jian Chen

Wei Zhuang

Zhuhong Yang

Changsong Wang

Chang Liu

Wenjun Yao

Xin Feng

Suoying Zhang

Licheng Li

Zheng Li

Ying Hong

Xiaoming Li

Yongbao Li

Xiujuan Ding

Ningxia Wang

Hong Liu

Guosong Chen

Jiangen Qian

Xi Chong

Hua Zhou

Qiaoyun Zhou

Caijuan Jin

Yongsheng Jin

Junting Sun

Yiming Yao

Yihao Zhu

Ke Zhou

Yijun Shi

Tuo Ji

Xiaoyun He

Dandan Lv

Jikui Wang

Meihua Tang

Zhiyi Zhang

Xiaochen Dong

Yudan Zhu

Linghong Lv

Yaxin Zhou

Liwen Mu

Jiajun Wu

Yaoqian Liu

Jingjing Chen

Jian Song

Provided is a low-molecular-weight holothurian glycosarninoglycan, with the constituent units thereof being a glucuronic acid group, an N-acetaminogalactose group and a fucose group, and a sulfate ester group or acetyl ester group thereof. Glucuronic acid and N-acetaminogalactose are interconnected via &#x3b2;(1-3) and &#x3b2;(1-4) glucosidic bonds to form a backbone of a disaccharide repeating structural unit, and a fucose group is connected to the backbone as a side chain. On a molar ratio basis, the ratio of the glucuronic acid group:the N-acetaminogalactose group:the fucose group is 1:(0.8-1.2):(0.6-1.2). In the structure of the low-molecular-weight holothurian glycosaminoglycan, 10-30% of glucuronic acid groups are modified, on the 2-position, with a sulfate ester group, and the rest are hydroxyl groups; and a proportion of 10-30% of fucose groups is modified, on the 2-position, with an acetyl ester group, and the rest are hydroxyl or sulfate ester groups. The low-molecular-weight holothurian glycosarninoglycan of the present invention has anti-inflammation, anti-vasculopathy, anti-tumor or anti-tumor-metastasis functions, and the effect of improving learning and memory abilities, and can be used for preparing a related drug or health-care product.

Low-molecular-weight holothurian glycosaminoglycan and use thereof

It discloses a vanadium-titanium compound material with high thermal stability and high activity and a preparation method thereof. The vanadium-titanium compound material is mainly composed of vanadium oxide and titanium oxide, where the content of vanadium oxide is 0.5% to 30% by mass of the vanadium-titanium compound material, and the crystal form of titanium oxide in the vanadium-titanium compound material is one of anatase and TiO(B) or a mixture thereof.

Vanadium-titanium compound material with high thermal stability and high activity and preparation method thereof

A portable rapid detection device for heavy metal ions includes a card electrode and a thin-layer flow cell, wherein a three-electrode system of the card electrode is inserted in a micro-channel of the thin-layer flow cell; and heavy metal ions are detected by using an anodic stripping voltammetry (ASV), a solution to be detected flows by the surface of a working electrode in the micro-channel, and heavy metals are enriched and stripped on the surface thereof.

Portable rapid detection device for heavy metal ions and methods of use

A method for regenerating a Cu-BTC material includes: impregnating a Cu-BTC adsorbed with guest molecules in an acidic proton solvent or in a steam environment thereof, and filtering the Cu-BTC material, to obtain a solid; impregnating the solid in a non-acidic organic solvent or a steam environment thereof, and finally filtering, washing and drying the solid, to complete the generation of the Cu-BTC material.

Regeneration method for Cu-BTC material

A mesoporous composite titanium oxide, which is composed of a mesoporous titanium oxide, the outside surface and the wall of pores of the mesoporous titanium oxide are modified by inorganic matters; inorganic matter contains at least one element selected from carbon, silicon, sulphur, phosphorus and selenium in an amount of 0.01%-25%, on amount of the element mass, of the mass of said mesoporous composite titanium oxide material; at least one mean pore size of pore distribution of the mesoporous compound titanium oxide material is 3-15 nm, the specific surface area is 50-250 m/g, and the pore volume is 0.05-0.4 cm/g. As a catalyst carrier, the rate of conversion of the hydrodesulfurization reaction of the material reaches as high as 98 percent, and as a lithium ion battery cathode material, the specific capacity of the lithium ion battery cathode material reaches as high as 220 mAh/g.

Mesoporous composite titanium oxide and a preparation method

A preparation method of carbon modified filler is provided. The method is: putting the fillers into the reaction zone of a reactor, starting the first heating-up to 400-500&#xb0; C. under the protective atmosphere at first, then introducing hydrogen after the heating-up; starting the second heating-up to 600-1200&#xb0; C. after introducing hydrogen and simultaneously introducing the mixture of hydrogen and carbon source gas, keeping at the terminal temperature for 0.1-5 hours, introducing nitrogen and stopping heating after the reaction, cooling, and then getting the carbon modified filler. The above method can obtain a friction material with good mechanical properties, excellent friction and wear performances, stable friction coefficient at high temperature, good braking force and no heat recession.

Preparation method of carbon modified filler

The methods for preparing Cu-BTC and nano-Cu-BTC are disclosed. An imporous coordination compound Cu(CHO)(HO)is impregnated an organic solvent or a steam environment thereof to obtain Cu-BTC. Cu-BTC is impregnated in an acidic protic solvent environment and filtered to obtain a solid, and the solid is impregnated in a non-acidic organic solvent or a steam environment thereof, centrifuged, washed, and dried, to obtain nano-Cu-BTC.

Method for preparing Cu-BTC and nano-Cu-BTC

A method for preparing titania or precursor thereof with a controllable structure from micropore to mesopore is provided. The method is characterized in that the alkali metal titanate as raw material is reacted for 0.5&#x2dc;72 hours in the wet atmosphere with humidity of 2&#x2dc;100% at temperature of 20&#x2dc;250&#xb0; C., then washed with water or acid, finally performed by air roasting or solvent thermal treatment. The method has advantages that the raw material is easy to be obtained, the conditions and preparation are controllable, the pore structure may be adjusted from micropore to mesopore, crystal mixing and doping are easy, reacting time is short, preparing cost is low, and the said method is suitable for large scale production and so on. The most probable aperture of titanium oxide or precursor thereof with a controllable structure from micropore to mesopore is in the range of 1&#x2dc;20 nm, the pore volume thereof is in the range of 0.05&#x2dc;0.4 cm/g, and the specific surface area thereof is more than 30 m/g. The titania is at least one of anatase-phase titania, TiO(B)-phase titania and rutile-phase titania.

Rapid method for preparing titania or precursor thereof with controllable microporous-mesoporous structure

Growing community of inventors

Nanjing, China

Xiaohua Lu