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Mesoporous resin nanobowls with optimized donor-acceptor conjugation for highly efficient photocatalytic hydrogen peroxide production

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Nano Research 2021年第9期14卷 3267-3273页

作者： Ling Yuan chaoqi zhang Jing Wang Chao Liu Chengzhong Yu School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241China Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia

Design of metal-free photocatalysts with customized chemical structure and nano-architecture is promising for photocatalytic hydrogen peroxide(H2O_(2))***,for the first time,mesoporous resorcinol-formaldehyde(MRF)nanobowls with optimized benzenoid-quinoid donor-acceptor(D-A)couples have been synthesized via an assembly-hydrothermal-etching process as high-performance photocatalysts for H2O_(2) production in a sacrificial agent-free *** the hydrothermal temperature of-250℃,MRF-250 exhibits optimized structural features including a large surface area,suitable D-A couple ratio,enhanced light absorption,charge-hole separation and mass ***,MRF-250 shows an unexpected H2O_(2) yield of 19.4 mM·g^(-1)·h^(-1) in pure water,outperforming other RF samples prepared under different conditions and superior to most reported metal-free photocatalysts without the aid of sacrificial *** work paves the way towards the elaborate design of highly effective metal-free photocatalysts for H2O_(2) production.

关键词： donor-acceptor couples mesoporous resin photocatalysts hydrogen peroxide

Unadulterated carbon as robust multifunctional electrocatalyst for overall water splitting and oxygen transformation

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Nano Research 2020年第2期13卷 401-411页

作者： Fantao Kong Yu Qiao chaoqi zhang Xiaohong Fan Aiguo Kong Yongkui Shan School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241China

Developing the highly efficient and durable non-precious metal electrocatalysts by taking advantage of inexpensive and abundant resources is of paramount importance for the widespread application of energy conversion and storage techniques such as fuel cells and metal-air ***,the sponge-like unadulterated carbontube-graphene complexes(D/G-CTs-1,000)with multifarious intrinsic defect active sites are fabricated by boric acid-hydrothermal and pyrolysis *** close contact or juncture between open nanotubes and few-layer graphene in D/G-CTs-1,000 constructs the hierarchical networks with plentifuchannels,the larger surface area and outstanding *** a result,the as-prepared D/G-CTs-1,000 electrocatalyst exhibits an excellent trifunctional electrocatalytic performance for oxygen reduction reaction(ORR),oxygen evolution reactior(OER)and hydrogen evolution reaction(HER).The primary Zn-air batteries and overall water splitting system using D/G-CTs-1,000 as the electrode materials delivers higher power density outperforming the advanced Pt/C-based batteries and the overall watersplitting performance comparable to those using the non-precious metal/carbon-based materials as *** work provides a universal and efficient synthetic strategy to produce the unadulterated carbons with high activity and long-time durability as trifunctional electrocatalysts and promote the widespread applications of metal-free electrocatalysts in sustainable energy conversior technology.

关键词： boric acid-splicing unadulterated carbon electrocatalysis rechargeable Zn-air battery overall water splitting

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新型微波等离子体化学沉积装置的数值仿真

武汉轻工大学学报 2024年第3期43卷 90-98页

作者：张朝琦汪启军罗先炽武汉轻工大学机械工程学院武汉430048

为了解决2.45 GHz微波等离子体化学沉积(MPCVD)装置沉积金刚石面积小、质量低的问题,提出了一款新型915 MHz半球形的MPCVD装置,并使用COMSOL软件对装置的结构进行优化设计。优化结果表明,当薄板与中心轴的距离为70 mm时,顶部电场强度仅... 详细信息

为了解决2.45 GHz微波等离子体化学沉积(MPCVD)装置沉积金刚石面积小、质量低的问题,提出了一款新型915 MHz半球形的MPCVD装置,并使用COMSOL软件对装置的结构进行优化设计。优化结果表明,当薄板与中心轴的距离为70 mm时,顶部电场强度仅为500 V/m,可以有效屏蔽谐振腔顶部次生电场的产生。将气体入口设置在谐振腔顶部时,气流会从基片台上均匀地横向扩散到底部排气孔,保证了反应物在基片台上的均匀分布。腔体底部的调谐机构可将谐振腔内的电场强度维持在4000 V/m以上,以确保金刚石的生长条件。优化设计了同轴天线穿过矩形波导的距离和同轴波导中心到短路活塞的距离,将反射系数S11降低到-8.7 dB。设计的新型915 MHz MPCVD装置可在高功率、高气压条件下沉积大面积、高质量的金刚石薄膜,具有实际应用价值。

关键词：微波等离子体化学气相沉积装置数值仿真 915 MHz 金刚石

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零售户价值预测分析应用研究

The combination of novel immune checkpoints HHLA2 and ICOSLG:A new system to predict survival and immune features in esophageal squamous cell carcinoma

中国科技纵横 2024年第13期 151-156页

作者：董思远蔡晓斌张超琦赵佳李代栋河南中烟工业有限责任公司河南郑州 450003

"十四五"时期,烟草行业面临社会环境发生巨大变革的挑战.从行业现状来说,烟草市场面临消费需求日益多元化、市场竞争日趋激烈、销售结构提升矛盾突出等问题.随着数字技术的不断发展,数据驱动逐渐成为烟草行业的新推手.零售户数据作为最... 详细信息

"十四五"时期,烟草行业面临社会环境发生巨大变革的挑战.从行业现状来说,烟草市场面临消费需求日益多元化、市场竞争日趋激烈、销售结构提升矛盾突出等问题.随着数字技术的不断发展,数据驱动逐渐成为烟草行业的新推手.零售户数据作为最基本的数据来源,可以帮助企业有针对性地优化市场布局.本文以河南中烟CRM客户管理系统中的零售户信息为数据基础,以CRISP-DM(Cross Industry Standard Process forData Mining)为研究框架,结合逻辑回归、ARIMA时间序列、BP神经网络等机器学习和深度学习模型,对黄金叶(天叶)规格卷烟在2021年第四季度的销售数据进行建模验证,助力精准把控未来零售户价值走向.

关键词：卷烟市场价值预测 CRISP-DM数据挖掘逻辑回归模型

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Genes & Diseases 2022年第2期9卷 415-428页

作者： chaoqi zhang Feng Wang Nan Sun Zhen zhang Guochao zhang Zhihui zhang Yuejun Luo Yun Che Hong Cheng Jiagen Li Jie He Department of Thoracic Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021PR China Biotherapy Center The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052PR China

Studies on immune checkpoint inhibitors targeting B7-CD28 family pathways in esophageal squamous cell carcinoma(ESCC)have shown promising ***,a comprehensive understanding of B7-CD28 family members in ESCC is still *** study aimed to construct a novel B7-CD28 family-based prognosis system to predict survival in patients with *** collected 179 cases from our previously published microarray data and 86 cases with qPCR ***,119 microarray data(GSE53624)were used as a training set,whereas the remaining 60 microarray data(GSE53622),all 179 microarray data(GSE53625)and an independent cohort with 86 qPCR data were used for *** underlying mechanism and immune landscape of the system were also explored using bioinformatics and *** examined 13 well-defined B7-CD28 family members and identified 2 genes(ICSOLG and HHLA2)with the greatest prognostic value.A system based on the combination HHLA2 and ICOSLG(B7-CD28 signature)was constructed to distinguish patients as high-or low-risk of an unfavorable outcome,which was further confirmed as an independent prognostic *** expected,the signature was well validated in the entire cohort and in the independent cohort,as well as in different clinical *** signature was found to be closely related to immune-specific biological processes and ***,high-risk group samples demonstrated high infiltration of Tregs and fibroblasts and distinctive immune checkpoint ***,we built the first,practical B7-CD28 signature for ESCC that could independently identify high-risk *** information may help inform immunotherapy-based treatment decisions for patients with ESCC.

关键词： Esophageal cancer HHLA2 ICOSLG Immune checkpoint Immunotherapy

An individualized immune signature of pretreatment biopsies predicts pathological complete response to neoadjuvant chemoradiotherapy and outcomes in patients with esophageal squamous cell carcinoma

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Signal Transduction and Targeted Therapy 2020年第1期5卷 886-895页

作者： chaoqi zhang Guochao zhang Nan Sun Zhen zhang Liyan Xue Zhihui zhang Haijun Yang Yuejun Luo Xiaoli Zheng Yonglei zhang Yufen Yuan Ruixue Lei Zhaoyang Yang Bo Zheng Le Wang Yun Che Feng Wang Sihui Wang Shugeng Gao Qi Xue Yi zhang Jie He Department of Thoracic Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Biotherapy Center The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052 HenanChina Department of Pathology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Pathology Anyang Cancer HospitalThe Fourth Affiliated Hospital of Henan University of Science and TechnologyAnyang 455000 HenanChina Department of Radiotherapy The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou 450008 HenanChina Department of General Surgery The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou 450008 HenanChina Department of Otology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052 HenanChina

No clinically available biomarkers can predict pathological complete response(pCR)for esophageal squamous cell carcinomas(ESCCs)with neoadjuvant chemoradiotherapy(nCRT).Considering that antitumor immunity status is an important determinant for nCRT,we performed an integrative analysis of immune-related gene profiles from pretreatment biopsies and constructed the first individualized immune signature for pCR and outcome prediction of ESCCs through a multicenter *** the discovery phase,14 differentially expressed immune-related genes(DEIGs)with greater than a twofold change between pCRs and less than pCRs(

关键词： esophageal patients immunity

Regulatory T cells promote glioma cell stemness through TGF-β-NF-κB-IL6-STAT3 signaling

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Regulatory T cells promote glioma cell stemness through TGF-...

Surface strain-enhanced MoS_(2)as a high-performance cathode catalyst for lithium-sulfur batteries

第十四届全国免疫学学术大会

作者： Shasha Liu chaoqi zhang Yi zhang Biotherapy Center the First Affiliated Hospital of Zhengzhou University

Glioma stem cells(GSCs) contribute to the malignant growth of glioma,but little is known about the interaction between GSCs and tumor microenvironment(TME).Here,we found that intense infiltration of regulatory T cells(Tregs) facilitated the qualities of GSCs through TGF-β secretion that helped coordinately tumor *** investigations indicated that TGF-β acted on cancer cells to induce the core cancer stem cell related genes CD133,SOX2,NESTIN,MUSASHI1 and ALDH1 A expression and spheres formation via NF-κB-IL6-STAT3 signaling pathway,resulting in the increased cancer sternness and tumorigenic ***,Tregs promoted glioma tumor growth,and this effect could be abrogated with blockade of IL6 receptor by Tocilizumab which also demonstrated certain level of therapeutic efficacy in xenograft ***,expression levels of CD133,IL6 and TGF-β were found to serve as prognosis markers of glioma ***,our findings reveal a new immune-associated mechanism underlying Tregs-induced ***,efforts to target this network may be an effective strategy for treating glioma.

关键词： glioma Tregs glioma stem cell TGF-β tocilizumab

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eScience 2022年第4期2卷 405-415页

作者： Chao Yue zhang chaoqi zhang Jiang Long Pan Guo Wen Sun Zude Shi Canhuang Li Xingqi Chang Geng Zhi Sun Jin Yuan Zhou Andreu Cabot School of Physical Science&Technology Lanzhou UniversityLanzhou730000China Catalonia Institute for Energy Research-IREC Sant Adriàde BesòsBarcelona08930Spain College of Chemistry and Chemical Engineering Hunan UniversityChangsha410082China Institute of Advanced Materials Nanjing Tech UniversityNanjing211816China ICREA Pg.Lluís Companys 2308010BarcelonaSpain

Lithium-sulfur batteries(LSBs)are one of the main candidates for the next generation of energy storage *** improve the performance of LSBs,we herein propose the use of strained MoS_(2)(s-MoS_(2))as a catalytically active sulfur *** introduction of strain in the MoS_(2)surface,which alters its atomic positions and expands the S-Mo-S angle,shifts the d-band center closer to the Fermi level and provides the surface with abundant and highly active catalytic sites;these enhance the catalyst's ability to adsorb lithium polysulfides(LiPS),accelerating its catalytic conversion and promoting lithium-ion *** is generated through the synthesis of core-shell nanoparticles,using different metal sulfides as strain-inducing cores.s-MoS_(2)nanoparticles are supported on carbon nanofibers(CNF/s-MoS_(2)),and the resulting electrodes are characterized by capacities of 1290 and 657 mAh g−1 at 0.2 and 5 C,respectively,with a 0.05%capacity decay rate per cycle at 8 C during 700 ***,this work not only provides an ingenious and effective strategy to regulate LiPS adsorption and conversion through strain engineering,but also indicates a path toward the application of strain engineering in other energy storage and conversion fields.

关键词： Strain engineering MoS_(2) Lithium polysulfide Electrospinning Core-shell nanocrystal Lithium-sulfur battery Sulfur cathode

FUCA1 is clinically prognostic and promotes macrophage recruitment in glioma

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FUCA1 is clinically prognostic and promotes macrophage recru...