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4 results on '"Li, Yu-Zhao"'

3. Controlled direct synthesis of single- to multiple-layer MWW zeolite.

Author

Chen, Jie-Qiong, Li, Yu-Zhao, Hao, Qing-Qing, Chen, Huiyong, Liu, Zhao-Tie, Dai, Chengyi, Zhang, Jianbo, Ma, Xiaoxun, and Liu, Zhong-Wen

Subjects
*RATE of nucleation, *UNIT cell, *NANOSTRUCTURED materials, *SILANE, *ALKYLATION, *NANOCRYSTALS, *ZEOLITES
Abstract

The minimized diffusion limitation and completely exposed strong acid sites of the ultrathin zeolites make it an industrially important catalyst especially for converting bulky molecules. However, the structure-controlled and large-scale synthesis of the material is still a challenge. In this work, the direct synthesis of the single-layer MWW zeolite was demonstrated by using hexamethyleneimine and amphiphilic organosilane as structure-directing agents. Characterization results confirmed the formation of the single-layer MWW zeolite with high crystallinity and excellent thermal/hydrothermal stability. The formation mechanism was rigorously revealed as the balanced rates between the nucleation/growth of the MWW nanocrystals and the incorporation of the organosilane into the MWW unit cell, which is further supported by the formation of MWW nanosheets with tunable thickness via simply changing synthesis conditions. The commercially available reagents, well-controlled structure and the high catalytic stability for the alkylation of benzene with 1-dodecene make it an industrially important catalyst. [ABSTRACT FROM AUTHOR]

Published
2021
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4. [Serum proteomics study of chronic gastritis with dampness syndrome in traditional Chinese medicine]

Author

Fufeng Li, Li Guo, Wen-jing Wang, Yi-qin Wang, Hui-fang Wang, and Li-yu Zhao

Subjects
Male, Proteomics, medicine.medical_specialty, Serum proteomics, Chronic gastritis, Traditional Chinese medicine, Gastroenterology, Diagnosis, Differential, Internal medicine, medicine, Humans, Medicine, Chinese Traditional, business.industry, Blood Proteins, medicine.disease, Blood proteins, Normal group, Complementary and alternative medicine, Gastritis, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Chronic Disease, Female, Peak value, medicine.symptom, Differential diagnosis, business
Abstract

OBJECTIVE: To explore microcosmic information in chronic gastritis dampness syndrome by using serum proteomics of patients with chronic gastritis dampness syndrome. METHODS: Serum proteomics of 18 dampness syndrome cases, 17 non-dampness syndrome cases in chronic gastritis patients and 8 normal controls were analyzed by surface enhanced laser desorption/ionization-time of flight (SELDI-TOF) protein-chip. RESULTS: There was a high expression trend in three ratios of charge (of an electron) to mass (M/S) of 3.2 kD, 6.4 kD and 8.1 kD of protein expression spectrum from patients with chronic gastritis dampness syndrome, and the wave peak value was over 10 units. There was a low expression trend in above-mentioned sites of protein expression spectrum from patients with chronic gastritis non-dampness syndrome and normal group. The wave peak value of patients with chronic gastritis non-dampness syndrome was about or below 10 units, and the wave peak value in normal group was below 5 units. CONCLUSION: There exists a certain significance to explore biologic theory basis of chronic gastritis dampness syndrome by analyzing the serum proteomics.

Published
2007

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