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| 1 | Controlled growth and photoluminescence of highly oriented arrays of ZnO nanocones with different diameters显示文摘Large-scale oriented ZnO nanocone arrays were directly grown on zinc substrate through a hydro-thermal reaction of Zn foil with aqueous butylamine solution(3 mol/L) at 100-180 ℃ for 12 h.The syn-thesized products were characterized with X-ray diffraction,Raman spectrum,scanning electron mi-croscopy and transmission electron microscopy.The results showed that the ZnO nanocones were single crystalline with the wurtzite structure and grown along the [0001] direction.The diameter of nanocones is decreased with increasing the reaction temperature.A possible growth mechanism was also proposed to account for the formation of the ZnO nanocone arrays.The photoluminescence spectra of the ZnO nanocone arrays were studied at room temperature,two UV emission bands at 377 and 396 nm assigned to free exciton emission and exciton-exciton collision,respectively,and phonon replicas associated with 2-E2 phonon were observed in the PL spectra. | MA JunHu YANG HeQing SONG YuZhe LI Li XIE XiaoLi LIU RuiNi WANG LinFang | 2009 | Science China(Technological Sciences)2009,52,5: | 4 |
| 2 | Evolvement behavior of microstructure and H_2O adsorption of lignite pyrolysis显示文摘The effect of pyrolysis on the microstructure and moisture adsorption of lignite was investigated with low field nuclear magnetic resonance spectroscopy. Changes in oxygen-containing groups were analyzed by Fourier transform infrared spectroscopy(FTIR), and H2 O adsorption mechanism on the surface of lignite pyrolysis was inferred. Two major changes in the pore structure of lignite char were observed as temperature increased in 105–200 °C and500–700 °C. Pyrolysis temperature is a significant factor in removing carboxyl and phenolic hydroxyl from lignite.Variation of ether bond content can be divided into three stages; the content initially increased, then decreased,and finally increased. The equilibrium adsorption ratio, content of oxygen-containing groups, and variation of pore volume below 700° were closely correlated with each other. The amount of adsorbed water on char pyrolyzed at700 °C increased. Moreover, the adsorption capacity of the lignite decreased, and the adsorption state changed. | Yingyue Teng Shijun Lian Quansheng Liu Yuzhe Liu Yinmin Song Runxia He Keduan Zhi | 2016 | Chinese Journal of Chemical Engineering2016,24,6: | 3 |
| 3 | Ribosome biogenesis in disease:new players and therapeutic targets显示文摘The ribosome is a multi-unit complex that translates mRNA into protein.Ribosome biogenesis is the process that generates ribosomes and plays an essential role in cell proliferation,differentiation,apoptosis,development,and transformation.The mTORC1,Myc,and noncoding RNA signaling pathways are the primary mediators that work jointly with RNA polymerases and ribosome proteins to control ribosome biogenesis and protein synthesis.Activation of mTORC1 is required for normal fetal growth and development and tissue regeneration after birth.Myc is implicated in cancer development by enhancing RNA Pol II activity,leading to uncontrolled cancer cell growth.The deregulation of noncoding RNAs such as microRNAs,long noncoding RNAs,and circular RNAs is involved in developing blood,neurodegenerative diseases,and atherosclerosis.We review the similarities and differences between eukaryotic and bacterial ribosomes and the molecular mechanism of ribosome-targeting antibiotics and bacterial resistance.We also review the most recent findings of ribosome dysfunction in COVID-19 and other conditions and discuss the consequences of ribosome frameshifting,ribosome-stalling,and ribosome-collision.We summarize the role of ribosome biogenesis in the development of various diseases.Furthermore,we review the current clinical trials,prospective vaccines for COVID-19,and therapies targeting ribosome biogenesis in cancer,cardiovascular disease,aging,and neurodegenerative disease. | Lijuan Jiao Yuzhe Liu Xi-Yong Yu Xiangbin Pan Yu Zhang Junchu Tu Yao-Hua Song Yangxin Li | 2023 | Signal Transduction and Targeted Therapy2023,8,2: | 1 |
| 4 | ULK1/2所构成的信号节点除控制细胞自噬外还控制葡萄糖代谢通路显示文摘在细胞感受到环境中营养物质和生长因子的提供量发生改变后,代谢通路的重编程对于维持此时胞内的稳态是非常重要的过程。ULK1和ULK2是传递外界应激信号至自噬发生的重要整合因子。 | Terytty Yang Li Yu Sun Yu Liang Qing Liu Yuzhe Shi Chen-Song Zhang Cixiong Zhang Lintao Song Pu Zhang Xianzhong Zhang Xiaotong Li Tao Chen Hui-Ying Huang Xiadi He Yi Wang Yu-Qing Wu Shaoxuan Chen Ming Jiang Canhe Chen Changchuan Xie James Y.Yang Yan Lin Shimin Zhao Zhiyun Ye Shu-Yong Lin Daniel Tsun-yee Chiu 林圣彩 | 2017 | 科学新闻2017,19,4: | 0 |
| 5 | Plasma Extracellular Vesicle MicroRNA Analysis of Alzheimer’s Disease Reveals Dysfunction of a Neural Correlation Network显示文摘Small extracellular vesicle(sEV)is an emerging source of potential biomarkers of Alzheimer's disease(AD),but the role of microRNAs(miRNAs)in sEV is not well understood.In this study,we conducted a comprehensive analysis of sEV-derived miRNAs in AD using small RNA sequencing and coexpression network analysis.We examined a total of 158 samples,including 48 from AD patients,48 from patients with mild cognitive impairment(MCI),and 62 from healthy controls.We identified an miRNA network module(M1)that was strongly linked to neural function and showed the strongest association with AD diagnosis and cognitive impairment.The expression of miRNAs in the module was decreased in both AD and MCI patients compared to controls.Conservation analysis revealed that M1 was highly preserved in the healthy control group but dysfunctional in the AD and MCI groups,suggesting that changes in the expression of miRNAs in this module may be an early response to cognitive decline prior to the appearance of AD pathology.We further validated the expression levels of the hub miRNAs in M1 in an independent population.The functional enrichment analysis showed that 4 hub miRNAs might interact with a GDF11-centered network and play a critical role in the neuropathology of AD.In summary,our study provides new insights into the role of sEV-derived miRNAs in AD and suggests that M1 miRNAs may serve as potential biomarkers for the early diagnosis and monitoring of AD. | Yuzhe Sun Zhen Hefu Benchao Li Wang Lifang Song Zhijie Li Zhou Yan Deng Liu Zhili Jiahong Ding Tao Li Wenwei Zhang Nie Chao Shuang Rong | 2023 | Research2023,,4: | 0 |