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Autoimmune regulator regulates autophagy in THP-1 human monocytes

Liang SHI, Li-Hua HU, Yi-Rong LI

《医学前沿（英文）》 2010年第4卷第3期页码 336-341 doi: 10.1007/s11684-010-0096-4

摘要： The autoimmune regulator (AIRE) is a crucial factor for the induction of central tolerance, and mutations in this gene lead to abnormal immune responses. However, the role of AIRE in autophagy in immune cells, especially in monocytes, is obscure. In the present study, we found that overexpression of AIRE in THP-1 human monocytes resulted in increased endogenous light chain 3 (LC3)-II level and elevated LC3 positive vesicles. Moreover, an autophagy inhibitor or knockdown of AIRE by small interference RNA attenuated these effects. In contrast, the expression of p62/SQSTM1 remained unchanged in THP-1 cells after the corresponding treatment. Our findings indicate that AIRE plays a role in the regulation of autophagy in THP-1 human monocytes.

关键词： autoimmune regulator autophagy monocytes light chain 3 (LC3)

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Superenhancers activate the autophagy-related genes Beclin1 and LC3B to drive metastasis and drug resistance

《医学前沿（英文）》 2022年第16卷第6期页码 883-895 doi: 10.1007/s11684-022-0919-0

摘要： Metastasis and drug resistance are the leading causes of poor prognosis in patients with osteosarcoma. Identifying the relevant factors that drive metastasis and drug resistance is the key to improving the therapeutic outcome of osteosarcoma. Here, we reported that autophagy was highly activated in metastatic osteosarcoma. We found increased autophagolysosomes in metastatic osteosarcoma cell lines by using electron microscopy, Western blot, and immunofluorescence experiments. We further examined the expression of the autophagy-related genes Beclin1 and LC3B in 82 patients through immunohistochemistry and found that Beclin1 and LC3B were highly related to unfavorable prognosis of osteosarcoma. Knockdown of Beclin1 and LC3B reduced invasion, metastasis, and proliferation in metastatic osteosarcoma cells. In vitro and in vivo studies also demonstrated that inhibiting by 3-MA inhibited cell growth and metastasis. Moreover, we demonstrated that autophagy-related genes were activated by SEs and that the inhibition of SEs by JQ-1 decreased the metastasis of osteosarcoma. Overall, our findings highlighted the association of autophagy with osteosarcoma progression and shed new light on autophagy-targeting therapy for osteosarcoma.

关键词： osteosarcoma autophagy metastasis drug resistance Beclin1 LC3B

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Fabrication of three-dimensional porous La-doped SrTiO3 microspheres with enhanced visible light catalytic

Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang

《化学科学与工程前沿（英文）》 2018年第12卷第3期页码 440-449 doi: 10.1007/s11705-018-1700-4

摘要：

In recent years, much effort has been focused on the development of the photocatalysts with high performance under visible light irradiation. In this paper, three-dimensional porous La-doped SrTiO₃ (LST) microspheres were prepared by a modified sol–gel method, in which the agarose gel/SrCO₃ microsphere and La₂O₃ were employed as the template and the La resource, respectively. The as-prepared LST microspheres exhibit a porous structure with a diameter of about 10 µm and a surface pore size of about 100 nm. The La element was doped into the crystal lattice of SrTiO₃ by the substitution of La³⁺ for Sr²⁺. Therefore, the absorption edge of LST samples shifts toward the visible light region, and their photocatalytic activity for the Cr(VI) reduction is enhanced under visible light. Among all LST samples, LST-0.5 (the La³⁺ doping content is 0.5 wt-%) exhibited the highest visible-light photocatalytic activity, which can reduce 84% Cr(VI) within 100 min. This LST materials may become a promising photocatalyst for the facile treatment of wastewater containing poisonous heavy metal ions.

关键词： SrTiO₃ La³⁺ doping porous microsphere visible-light photocatalysis Cr(VI) reduction

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Development of the expressed immunoglobulin μ chain repertoire during maturation of mice B cells

Jingwen LIANG,Yingfeng LUO,Yi SUN,Meng LEI,Bing ZHANG,Songnian HU,Yaofeng ZHAO

《农业科学与工程前沿（英文）》 2014年第1卷第3期页码 201-213 doi: 10.15302/J-FASE-2014017

摘要： In the bone marrow and spleen, the developing B cell populations undergo both negative and positive selections to shape their B cell receptor repertoire. To gain insight into the shift of the immunoglobulin heavy (IgH) chain repertoire during B cell development, we undertook large scale Ig μ chain repertoire analysis of pre-B, immature B and spleen B cell populations. We found that the majority of V gene segments, V families, J and D gene segments, were observed to have significantly different usage frequencies when three B cell populations were compared, but the usage profile of the V D, and J genes between different B cell populations showed high correlations. In both productive and nonproductive rearrangements, the length of CDRH3 shortened significantly on average when B cells entered the periphery. However, the CDRH3 length distribution of nonproductive rearrangements did not follow a Gaussian distribution, but decreased successively in the order 3 -2, 3 -1 and 3 , suggesting a direct correlation between mRNA stability and CDRH3 length patterns of nonproductive rearrangements. Further analysis of the individual components comprising CDRH3 of productive rearrangements indicated that the decrease in CDRH3 length was largely due to the reduction of N addition at the 5′ and 3′ junctions. Moreover, with development, the amino acid content of CDRH3 progressed toward fewer positively charged and nonpolar residues but more polar residues. All these data indicated that the expressed Ig μ chain repertoire, especially the repertoire of CDRH3, was fine-tuned when B cells passed through several checkpoints of selection during the process of maturation.

关键词： repertoire complementarity determining region 3 of the IgH chain (CDRH3) immunoglobulin heavy chain variable region

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Three-dimensional reconstruction of light microscopy image sections: present and future

null

《医学前沿（英文）》 2015年第9卷第1期页码 30-45 doi: 10.1007/s11684-014-0337-z

摘要：

Three-dimensional (3D) image reconstruction technologies can reveal previously hidden microstructures in human tissue. However, the lack of ideal, non-destructive cross-sectional imaging techniques is still a problem. Despite some drawbacks, histological sectioning remains one of the most powerful methods for accurate high-resolution representation of tissue structures. Computer technologies can produce 3D representations of interesting human tissue and organs that have been serial-sectioned, dyed or stained, imaged, and segmented for 3D visualization. 3D reconstruction also has great potential in the fields of tissue engineering and 3D printing. This article outlines the most common methods for 3D tissue section reconstruction. We describe the most important academic concepts in this field, and provide critical explanations and comparisons. We also note key steps in the reconstruction procedures, and highlight recent progress in the development of new reconstruction methods.

关键词： microtomy 3D imaging computer-assisted image processing 3D printing tissue scaffold

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Expression and clinical implication of PRL-1 and PRL-3 in transitional cell carcinoma of bladder

Bin HAO, Changwei LIU, Huixiang LI

《医学前沿（英文）》 2009年第3卷第2期页码 197-203 doi: 10.1007/s11684-009-0036-3

摘要： The mRNA and protein expression of phosphatase of regenerating liver 1 (PRL-1) and phosphatase of regenerating liver 3 (PRL-3) in transitional cell carcinoma of bladder (BTCC) and normal epithelia of bladder was investigated, and the relationship between the BTCC and pathological changes was clarified. The expression of PRL-1 and PRL-3 mRNA was detected by using reverse transcription polymerase chain reaction (RT-PCR) in 30 cases of BTCC and 10 cases of normal bladder, and the expression of PRL-1 and PRL-3 protein was checked by using immunohistochemistry in 30 cases of BTCC and 15 cases of normal bladder. The expression levels of PRL-1 and PRL-3 mRNA and protein were higher in BTCC than those in normal bladder epithelia ( <0.05). The increased expression of PRL-1 and PRL-3 mRNA and protein was detectable in deep invasion and metastasis of BTCC ( <0.05). There was no correlation between the expression of PRL-1 and PRL-3 and gender, age or recurrence of BTCC (all >0.05). A significantly positive correlation was found between PRL-1 and PRL-3 in BTCC ( <0.05). PRL-1 and PRL-3 are expressed consistently and may contribute to the growth, differentiation, invasion and metastasis of BTCC.

关键词： transitional cell carcinoma of bladder phosphatase of regenerating liver 1 phosphatase of regenerating liver 3 reverse transcription polymerase chain reaction immunohistochemistry

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hemorrhagic diathesis in hemophilia A mice by an AAV-delivered hybrid FVIII composed of the human heavy chainand the rat light chain

《医学前沿（英文）》 2022年第16卷第4期页码 584-595 doi: 10.1007/s11684-021-0844-7

摘要： Conventional therapies for hemophilia A (HA) are prophylactic or on-demand intravenous FVIII infusions. However, they are expensive and inconvenient to perform. Thus, better strategies for HA treatment must be developed. In this study, a recombinant FVIII cDNA encoding a human/rat hybrid FVIII with an enhanced procoagulant potential for adeno-associated virus (AAV)-delivered gene therapy was developed. Plasmids containing human FVIII heavy chain (hHC), human light chain (hLC), and rat light chain (rLC) were transfected into cells and hydrodynamically injected into HA mice. Purified AAV viruses were intravenously injected into HA mice at two doses. Results showed that the hHC+ rLC protein had a higher activity than the hHC+ hLC protein at comparable expression levels. The specific activity of hHC+ rLC was about 4- to 8-fold higher than that of their counterparts. Hydrodynamic injection experiments obtained consistent results. Notably, the HA mice undergoing the AAV-delivered hHC+ rLC treatment exhibited a visibly higher activity than those treated with hHC+ hLC, and the therapeutic effects lasted for up to 40 weeks. In conclusion, the application of the hybrid FVIII (hHC+ rLC) via an AAV-delivered gene therapy substantially improved the hemorrhagic diathesis of the HA mice. These data might be of help to the development of optimized FVIII expression cassette for HA gene therapy.

关键词： hemophilia A adeno-associated virus (AAV) human/rat hybrid factor VIII gene therapy dual chain strategy

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面向自动可视化的可解释数据变换推荐 Research Article

黄志雄1,3,李晋江2,3,华臻1,3,范琳伟4

《信息与电子工程前沿（英文）》 2023年第24卷第7期页码 1028-1044 doi: 10.1631/FITEE.2200344

摘要：为提升低光图像可视性，提出一种基于过滤—群聚注意力（FCA）的递归网络，其中主体由3个单元组成：差异关注、门控递归以及迭代残差。该网络对低光图像进行多阶段递归学习，进而提取更深层次特征信息。

关键词：低光增强；过滤—群聚注意力；密集连接金字塔；递归网络

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Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic

《化学科学与工程前沿（英文）》 2023年第17卷第1期页码 93-101 doi: 10.1007/s11705-022-2175-x

摘要： Defect construction and heteroatom doping are effective strategies for improving photocatalytic activity of carbon nitride (g-C₃N₄). In this work, N defects were successfully prepared via cold plasma. High-energy electrons generated by plasma can produce N defects and embed sulfur atoms into g-C₃N₄. The N defects obviously promoted photocatalytic degradation performance that was 7.5 times higher than that of pure g-C₃N₄. The concentration of N defects can be tuned by different power and time of plasma. With the increase in N defects, the photocatalytic activity showed a volcanic trend. The g-C₃N₄ with moderate concentration of N defects exhibited the highest photocatalytic activity. S-doped g-C₃N₄ exhibited 11.25 times higher photocatalytic activity than pure g-C₃N₄. It provided extra active sites for photocatalytic reaction and improved stability of N defects. The N vacancy-enriched and S-doped g-C₃N₄ are beneficial for widening absorption edge and improving the separation efficiency of electron and holes.

关键词： g-C₃N₄ nitrogen defect sulfur doping photodegradation plasma

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可见光引发的3D 生物打印技术及其生物墨水材料在组织工程领域的研究进展 Review

郑子卓, David Eglin, Mauro Alini, Geoff R. Richards, 秦岭, 赖毓霄

《工程（英文）》 2021年第7卷第7期页码 966-978 doi: 10.1016/j.eng.2020.05.021

摘要：

3D生物打印技术是一种基于传统3D打印技术发展起来的新兴技术。在众多3D生物打印技术中，光固化3D生物打印技术在组织工程研究领域发挥着重要作用，而光固化3D生物打印技术的成功应用又与生物材料的光固化特性不可分割。然而，紫外线用于3D生物打印可能会造成细胞损伤，影响细胞的活力。而可见光在生物安全性方面具有独特的优势，所以，将可见光交联技术应用在3D生物打印领域极具应用前景。本文回顾了目前可应用的由可见光引发的3D生物打印技术，并对可见光交联生物墨水的交联机理、可见光引发剂类型和生物医学应用进行了介绍。本文最后对可见光引发的3D生物打印设备及水凝胶目前在生物医学领域应用中存在的挑战和前景进行了讨论。

关键词：医用增材制造生物墨水组织工程 3D生物打印

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Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

《化学科学与工程前沿（英文）》 2015年第9卷第3期页码 349-358 doi: 10.1007/s11705-015-1523-5

摘要： Ti -doped TiO nanosheets with tunable phase composition (doped TiO (A/R)) were synthesized via a hydrothermal method with high surface area anatase TiO nanosheets TiO (A) as a substrate, structure directing agent, and inhibitor; the activity was evaluated using a probe reaction-photocatalytic CO conversion to methane under visible light irradiation with H as an electron donor and hydrogen source. High-resolution transmission electron microscope (HRTEM), field emission scanning electron microscope, UV-Vis diffuse reflectance spectra, and X-ray diffraction (XRD) etc., were used to characterize the photocatalysts. XRD and HRTEM measurements confirmed the existence of anatase-rutile phase junction, while Ti and single-electron-trapped oxygen vacancy in the doped TiO (A/R) photocatalyst were revealed byelectron paramagnetic resonance (EPR) measurements. Effects of hydrothermal synthesis temperature and the amount of added anatase TiO on the photocatalytic activity were elucidated. Significantly enhanced photocatalytic activity of doped TiO (A/R) was observed; under the optimized synthesis conditions, CH generation rate of doped TiO (A/R) was 2.3 times that of Ti -doped rutile TiO .

关键词： Ti³⁺-doped TiO₂ photocatalytic CO₂ conversion visible light irradiation

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A comprehensive analysis of immunoglobulin heavy chain genes in the Bactrian camel (

Zuoxiang LIANG,Tao WANG,Yi SUN,Wenlong YANG,Zhihong LIU,Jing FEI,Ying GUO,Qingwei MA,Qingjie PAN,Liming REN

《农业科学与工程前沿（英文）》 2015年第2卷第3期页码 249-259 doi: 10.15302/J-FASE-2015056

摘要： Heavy chain only antibodies (HCAbs) represent a rare type of antibody that is devoid of light chains and the CH1 domain that have been reported in cartilaginous fish and camelids. By analyzing transcript data and genome sequences, we conducted a comprehensive analysis of Bactrian camel immunoglobulin heavy chain genes. Based on the transcript data, one gene, five genes, one gene and one gene were found. Additionally, the variable region of HCAbs (VHH) and the conventional antibodies (VH) sequences associated with the , and genes were amplified. Based on these genome sequences, seven , six , , , , , and genes and a portion of a gene were observed. Different Kozak sequences within different VH families were found in our analysis, and the variability index differed between the VHH3 and VH3 families. Phylogenetic analysis of the constant regions of the camelid immunoglobulin genes indicates that these genes appeared before the evolutionary divergence of Bactrian camels and dromedaries.

关键词： Bactrian camel heavy-chain antibodies VHH γ3

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Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered

《化学科学与工程前沿（英文）》 2021年第15卷第6期页码 1561-1571 doi: 10.1007/s11705-021-2089-z

摘要： It is of broad interest to develop emerging photocatalysts with excellent light-harvesting capacity and high charge carrier separation efficiency for visible light photocatalytic hydrogen evolution reaction. However, achieving satisfying hydrogen evolution efficiency under noble metal-free conditions remains challenging. In this study, we demonstrate the fabrication of three-dimensionally ordered macroporous SrTiO₃ decorated with Zn_xCd₁₋_xS nanoparticles for hydrogen production under visible light irradiation (λ>420 nm). Synergetic enhancement of photocatalytic activity is achieved by the slow photon effect and improved separation efficiency of photogenerated charge carriers. The obtained composites could afford very high hydrogen production efficiencies up to 19.67 mmol·g⁻¹·h⁻¹, with an apparent quantum efficiency of 35.9% at 420 nm, which is 4.2 and 23.9 times higher than those of pure Zn_0.5Cd_0.5S (4.67 mmol·g⁻¹·h⁻¹) and CdS (0.82 mmol·g⁻¹·h⁻¹), respectively. In particular, under Pt-free conditions, an attractive hydrogen production rate (3.23 mmol·g⁻¹·h⁻¹) was achieved, providing a low-cost and high-efficiency strategy to produce hydrogen from water splitting. Moreover, the composites showed excellent stability, and no obvious loss in activity was observed after five cycling tests.

关键词： three-dimensionally ordered macroporous SrTiO₃ Zn_xCd_1–_xS visible light hydrogen production promotion mechanism

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Synthesis of copolymers of 3-acryloyloxymethyl-3′-methyloxetane and 3-(2-(2-(2-Methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane and their ionic conductivity properties

YE Lin, ZHAO Yumei, FENG Zengguo, BAI Ying, WU Feng

《化学科学与工程前沿（英文）》 2007年第1卷第4期页码 343-348 doi: 10.1007/s11705-007-0062-0

摘要： An oxetane-derived monomer, 3-acryloyloxymethyl-3′-methyloxetane (AMO) was prepared from the reaction of 3-hydromethyl-3-methyloxetane with acryloyl chloride. The cationic ring-opening copolymerization of AMO with another oxetane-derived monomer, 3-(2-(2-(2-methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane (MEMO) was conducted in CHCl solution using BF3 ·OEt/1, 4-butanediol as a co-initiator. The resulting copolymers were characterized by FTIR, H NMR and Gel Permeation Chromatography (GPC) analyses, and it was found that the enchained ratio of AMO in the copolymers is far lower than its feed ratio. They were crosslinked via the radical polymerization of the vinyl group initiated by BPO after doping with lithium trifluoromethanesulfonimide (LiTFSI) to give rise to tough polymeric electrolyte films. The ionic conductivity was measured at varying content of AMO and different concentration of lithium salt LiTFSI by AC impedance, and a maximum ion conductivity of 1.44×10 S/cm at 30°C or 1.25×10 S/cm at 80°C was attained in the sample PAM 33 at the mole ratio of O : Li = 20. The DSC results indicated that decreases with the increase of the proportion of AMO in the copolymer, well consistent with the ion conductivity trend. The TGA (thermogravimetric analysis) measurement revealed that this kind of copolymer electrolytes is more thermostable than their liquid counterparts.

关键词： 4-butanediol 2-methoxyethylenoxy consistent oxetane-derived copolymer

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Heterologous expression of signal protein 14-3-3 in and the subsequent immune response in mice

ZHENG Meijuan, SHEN Jilong, LUO Qingli, XU Yuanhong

《医学前沿（英文）》 2008年第2卷第1期页码 95-99 doi: 10.1007/s11684-008-0017-y

摘要： Schistosomiasis japonica, a zoonosis caused by , is endemic to the Philippines and China. Several vaccine candidates have been identified and tested in different animal models, but it is still unclear which will be optimal for testing in the field. Therefore, new antigens and strategies are necessary for vaccine development against schistosomiasis japonica. The Sj14-3-3 gene was amplified and subcloned into the expression vector pPICZ?-B and transformed into X-33 by electroporation. Three transformants were induced with methanol. The cultural supernatant was collected and tested by SDS-PAGE and Western blotting. The protein of rSj14-3-3 was prepared and purified and BALB/c mice were immunized which was followed by a challenging infection. The immuno-protection was then evaluated. The Sj14-3-3 gene was expressed and secreted into the medium and its molecular weight was about 35000 as determined by SDS-PAGE. Western blotting showed that the protein had a high specificity against mouse-anti-Sj14-3-3 monoclonal antibody and rSj14-3-3 had a promising immune reactivity. The results of the immuno-protective experiments revealed that the worm reduction was 26.0%, 32.2%, and 36.8%, respectively. The number of eggs in liver tissue was reduced by 36.8%, 43.2%, and 46.1%, respectively. The recombinant Sj14-3-3 of eukaryotic expression in was successfully harvested. The molecular vaccine of Sj14-3-3 could partially induce resistance to the infection with in BALB/c mice. The recombinant protein Sj14-3-3 has promising immunological potentials for further approach to the diagnosis and development of molecular vaccine.

关键词： development challenging rSj14-3-3 resistance cultural supernatant

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标题作者时间类型操作

Autoimmune regulator regulates autophagy in THP-1 human monocytes

Liang SHI, Li-Hua HU, Yi-Rong LI

期刊论文

Superenhancers activate the autophagy-related genes Beclin1 and LC3B to drive metastasis and drug resistance

期刊论文

Fabrication of three-dimensional porous La-doped SrTiO3 microspheres with enhanced visible light catalytic

Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang

期刊论文

Development of the expressed immunoglobulin μ chain repertoire during maturation of mice B cells

Jingwen LIANG,Yingfeng LUO,Yi SUN,Meng LEI,Bing ZHANG,Songnian HU,Yaofeng ZHAO

期刊论文

Three-dimensional reconstruction of light microscopy image sections: present and future

null

期刊论文

Expression and clinical implication of PRL-1 and PRL-3 in transitional cell carcinoma of bladder

Bin HAO, Changwei LIU, Huixiang LI

期刊论文

hemorrhagic diathesis in hemophilia A mice by an AAV-delivered hybrid FVIII composed of the human heavy chainand the rat light chain

期刊论文

面向自动可视化的可解释数据变换推荐

黄志雄1,3,李晋江2,3,华臻1,3,范琳伟4

期刊论文

Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic

期刊论文

可见光引发的3D 生物打印技术及其生物墨水材料在组织工程领域的研究进展

郑子卓, David Eglin, Mauro Alini, Geoff R. Richards, 秦岭, 赖毓霄

期刊论文

Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

期刊论文

A comprehensive analysis of immunoglobulin heavy chain genes in the Bactrian camel (

Zuoxiang LIANG,Tao WANG,Yi SUN,Wenlong YANG,Zhihong LIU,Jing FEI,Ying GUO,Qingwei MA,Qingjie PAN,Liming REN

期刊论文

Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered

期刊论文

Synthesis of copolymers of 3-acryloyloxymethyl-3′-methyloxetane and 3-(2-(2-(2-Methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane and their ionic conductivity properties

YE Lin, ZHAO Yumei, FENG Zengguo, BAI Ying, WU Feng

期刊论文

Heterologous expression of signal protein 14-3-3 in and the subsequent immune response in mice

ZHENG Meijuan, SHEN Jilong, LUO Qingli, XU Yuanhong

期刊论文

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