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Optimizing the ORR performance of PtMnM ternary intermetallics by tuning the surface strain

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Science China Chemistry 2024年

作者： Min Song Guanyu Luo qian zhang Hanyu Hu Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST)

Identifying the descriptors that control catalytic performance is key to design catalysts with high activity and stability. As indirect descriptors related to catalytic activity, modulating the Pt–Pt interatomic distance and d-band center can effectively enhance the ORR activity. It is well recognized that the Pt–Pt interatomic distance is strongly correlated with the surface strain. Herein,PtMnM/C ternary intermetallics are constructed through partially replacing Mn in PtMn/C binary intermetallics with the other transition metal（M = Fe, Co, Ni, and Cu）. The 3d-transition metal doping induces surface strain, and the ORR performance of PtMnM/C exhibits volcano relationship relative to both the Pt–Pt interatomic distance and d-band center. The PtMnCo/C with optimum strain exhibits the highest mass activity(1.06 A mg-1Pt) at 0.9 V, which is 2.6 and 4.6 times higher than that of PtMn/C and commercial Pt/C catalysts, respectively. In addition, PtMnCo/C shows good durability with only 10 mV half-wave potential decay after 50,000 potential cycles.

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Recent advances in COhydrogenation to higher alcohols

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Science China Chemistry 2024年

作者： qian zhang Sen Wang Mei Dong Jianguo Wang Weibin Fan State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences University of Chinese Academy of Sciences

CO2hydrogenation to higher alcohols(C2+OH) is an effective way to realize carbon recycling, which can not only reduce the CO2amounts in atmosphere and mitigate the greenhouse effect, but also provides a new route to synthesize important ***, this process is a challenge because the inert CO2molecule is difficult to be activated and undergo C–C coupling. The key to achieve selective conversion of CO2to C2+OH is to design high-performance catalytic systems and unravel the reaction mechanism. In this review, we report several typical CO2hydrogenation-to-C2+OH catalyst materials, including noble-metal catalysts, Cu-based catalysts, Co-based catalysts and Mo-based catalysts, and evaluate the effects of various promoters on the catalytic performance and reaction mechanism. It will provide not only fundamental insights into the CO2hydrogenation-toC2+OH reaction mechanism, but also guidance for the development of related high-performance catalysts.

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Strong metal-support interactions between highly dispersed Cu^(+) species and ceria via mix-MOF pyrolysis toward promoted water-gas shift reaction

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Journal of Energy Chemistry 2024年第4期91卷 475-483页

作者： Xiao-Chen Sun Xing-Chi Li Ze-Wei Xie Chen-Yue Yuan De-Jiu Wang qian zhang Xiao-Yu Guo Hao Dong Hai-Chao Liu Ya-Wen zhang Beijing National Laboratory for Molecular Sciences(BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Beijing National Laboratory for Molecular Sciences(BNLMS) State Key Laboratory for Structural Chemistry of Stable and Unstable SpeciesCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

The modulation of metal-support interfacial interaction is significant but challenging in the design of high-efficiency and high-stability supported ***,we report a synthetic strategy to upgrade Cu-CeO_(2)interfacial interaction by the pyrolysis of mixed metal-organic framework(MOF)*** obtained highly dispersed Cu/CeO_(2)-MOF catalyst via this strategy was used to catalyze water-gas shift reaction(WGSR),which exhibited high activity of 40.5μmolCOgcat^(-1).s^(-1)at 300℃and high stability of about 120 *** on comprehensive studies of electronic structure,pyrolysis strategy has significant effect on enhancing metal-support interaction and then stabilizing interfacial Cu^(+)species under reaction *** Cu^(+)species and generated oxygen vacancies over Cu/CeO_(2)-MOF catalyst played a key role in CO molecule activation and H2O molecule dissociation,*** collaborated closely and then promoted WGSR catalytic performance in comparison with traditio nal supported *** study shall offer a robust approach to harvest highly dispersed catalysts with finely-tuned metal-support interactions for stabilizing the most interfacial active metal species in diverse heterogeneous catalytic reactions.

关键词： Cu-based catalyst MOF derivative Water-gas shift reaction Metal-support interaction

Characterization of distinct microbiota associated with androgenetic alopecia patients treated and untreated with platelet-rich plasma(PRP)

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Animal Models and Experimental Medicine 2024年第2期7卷 106-113页

作者： qian zhang Yanan Wang Cheng Ran Yingmei Zhou Zigang Zhao Tianhua Xu Hongwei Hou Yuan Lu Beijing Life Science Academy BeijingChina Department of Pathology Affiliated Hospital of Hebei UniversityBaodingChina Department of Otolaryngology Affiliated Hospital of Hebei UniversityBaodingChina Department of Dermatology Huazhong University of Science and Technology Union Shenzhen HospitalShenzhenChina Department of Dermatology Hainan Hospital of PLA General HospitalSanyaChina Department of Chemical Engineering Tsinghua UniversityBeijingChina

Background:Androgenic alopecia(AGA)is the most common type of hair loss in men,and there are many studies on the treatment of hair loss by platelet-rich plasma(PRP).The human scalp contains a huge microbiome,but its role in the process of hair loss remains unclear,and the relationship between PRP and the microbiome needs further ***,the purpose of this study was to investigate the effect of PRP treatment on scalp microbiota ***:We performed PRP treatment on 14 patients with AGA,observed their clinical efficacy,and collected scalp swab samples before and after *** scalp microflora of AGA patients before and after treatment was characterized by amplifying the V3-V4 region of the 16 s RNA gene and sequencing for bacterial ***:The results showed that PRP was effective in the treatment of AGA patients,and the hair growth increased *** results of relative abundance analysis of microbiota showed that after treatment,g_Cutibacterium increased and g_Staphylococcus decreased,which played a stable role in scalp *** addition,g_Lawsonella decreased,indicating that the scalp oil production decreased after ***:The findings suggest that PRP may play a role in treating AGA through scalp microbiome rebalancing.

关键词： androgenic alopecia microbiome platelet-rich plasma scalp

The genomic and immunogenomic landscape of mechanics pathway informs clinical prognosis and response to mechanotherapy

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Science China(Life Sciences) 2024年第8期67卷 1549-1562页

作者： Peidong zhang Peiwei Li Muya Tang Ryan CGimple Liang Huang Jing Yue Qiuhong Shen Yiwei Du qian zhang Zhengnan Yang Haihuai He Kailin Yang Linjie Zhao Shengtao Zhou Department of Obstetrics and Gynecology Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOEState Key Laboratory of BiotherapyWest China Second HospitalSichuan University and Collaborative Innovation CenterChengdu 610041China Physician Scientist Training Program Department of MedicineWashington University School of MedicineSt.Louis 63110USA Department of Neurosurgery State Key Laboratory of BiotherapyWest China HospitalSichuan University and Collaborative Innovation CenterChengdu 610041China Department of Radiation Oncology Taussig Cancer CenterCleveland ClinicCleveland 44106USA

Mechanics shape cell and tissue plasticity and maintain their *** cancers,mechanical signals regulate cancer hallmarks via mechanotransduction pathways,such as proliferation,metastasis and metabolic ***,comprehensive characterization of mechanotransduction pathway genes and their clinical relevance across different cancer types remains ***,we systematically portrayed the alterations of mechanotransduction pathway genes across 31 cancer types using The Cancer Genome Atlas(TCGA)*** the cancer types could be categorized into 6 subtypes based upon the transcriptional pattern of mechanics pathway *** subtype has its own unique molecular expression pattern,mutation landscapes,immune infiltrates,and patient clinical *** further found that the responses of two subtypes of cancers,one with the optimal outcome and the other with the worst prognosis,to a classical mechanotherapeutic agent(Fasudil,RhoA/ROCK inhibitor)were totally different,indicating that our cancer stratification system based upon mechanotransduction pathway genes could inform clinical responses of patients to mechanotherapeutic ***,our study provides a novel pan-cancer landscape of the mechanotransduction pathways and underscores its potential clinical significance in the prediction of clinical prognosis and therapeutic responses to mechanotherapy among cancer patients.

关键词： pan-cancer cancer mechanics multi-omics immunology

Chinese version of the Perth Alexithymia Questionnaire:psychometric properties and clinical applications

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General Psychiatry 2024年第2期37卷 274-283页

作者： Xin-Lu Cai Qingying Ye Ke Ni Lin Zhu qian zhang Minmin Yin Zhe zhang Wei Wei David A.Preece Bao-Ming Li Institute of Brain Science and Department of Physiology School of Basic Medical SciencesHangzhou Normal UniversityHangzhouZhejiangChina Zhejiang Philosophy and Social Science Laboratory for Research in Early Development and Childcare Hangzhou Normal UniversityHangzhouZhejiangChina Qiqihar Mental Health Center QiqiharChina Department of Special Education Faculty of EducationHangzhou Normal UniversityHangzhouZhejiangChina Department of Neurobiology Affiliated Mental Health Center&Hangzhou Seventh People's Hospital Zhejiang University School of MedicineHangzhouZhejiangChina Liangzhu Laboratory MOE Frontier Science Center for Brain Science and Brain-machine IntegrationState Key Laboratory of Brain-machine IntelligenceZhejiang UniversityHangzhouZhejiangChina NHC and CAMS Key Laboratory of Medical Neurobiology Zhejiang UniversityHangzhouChina School of Population Health and Curtin enAble Institute Curtin UniversityPerthWestern AustraliaAustralia School of Psychological ScienceThe University of Western AustraliaPerthWestern AustraliaAustralia

Background The alexithymia trait is of high clinical *** Perth Alexithymia Questionnaire(PAQ)was recently developed to enable detailed facet-level and valence-specific assessments of *** In this paper,we introduce the first Chinese version of the PAQ and examine its psychometric properties and clinical *** In Study 1,the PAQ was administered to 990 Chinese *** examined its factor structure,internal consistency,test-retest reliability,as well as convergent,concurrent and discriminant *** Study 2,four groups,including a major depressive disorder(MDD)group(n=50),a matched healthy control group for MDD(n=50),a subclinical depression group(n=50)and a matched healthy control group for subclinical depression(n=50),were *** comparisons were conducted to assess the clinical relevance of the *** In Study 1,the intended five-factor structure of the PAQ was found to fit the data *** PAQ showed good internal consistency and test-retest reliability,as well as good convergent,concurrent and discriminant *** Study 2,the PAQ was able to successfully distinguish the MDD group and the subclinical depression group from their matched healthy *** The Chinese version of the PAQ is a valid and reliable instrument for comprehensively assessing alexithymia in the general population and adults with clinical/subclinical depression.

关键词： clinical instrument matched

Chiral resolution of furofuran lignans and their derivatives from the stems of Dendrobium 'Sonia'

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Chinese Journal of Natural Medicines 2024年第10期 937-944页

作者： QIU Kaimei QIU Hao XIE Yanqiao zhang Siyu zhang qian WANG Zhengtao HAN Zhuzhen YANG Li The MOE Key Laboratory of Standardization of Chinese Medicines The SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines The Shanghai Key Laboratory for Compound Chinese Medicines Institute of Chinese Materia Medica Shanghai University of Traditional Chinese Medicine

Five new furofuran lignans and their derivatives,（-）-glaberide I 4-O-β-D-glucopyranoside（1a）,（+）-glaberide I 4-O-β-D-glucopyranoside（1b）,（+）-glaberide I 7'-ethoxy-4-O-β-D-glucopyranoside（2a）,（-）-glaberide I 7'-ethoxy-4-O-β-D-glucopyranoside（2b）, and（-）-isoeucommin A（3b）, along with fifteen known analogs were isolated from the stems of Dendrobium 'Sonia'. These compounds were classified into ten pairs of enantiomers or diastereoisomers via chiral resolution, and their structures were determined based on extensive spectroscopic data. Their absolute configurations were determined by hydrolysis, comparison of experimental and calculated electronic circular dichroism（ECD） data, and single-crystal X-ray diffraction analysis. The isolates were evaluated for their ability to inhibit nitric oxide（NO） production in RAW264.7 cells. Among them, syringaresinol（5） exhibited prominent inhibition activity, with an IC50 value of 28.4 ± 3.0 μmol·L-1, and there was a slight difference between 5a, 5b and the racemic mixture 5.

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Coherent emission and attosecond transient absorption of Nin strong fields

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Science China(Physics,Mechanics & Astronomy) 2024年

作者： qian zhang Guangru Bai Bin zhang Jinlei Liu Hongbin Lei Xiaowei Wang Jing Zhao Zengxiu Zhao Department of Physics National University of Defense Technology Hunan Key Laboratory of Extreme Matter and Applications National University of Defense Technology

The ionic dynamics induced by strong-field ionization are essential to understand the fundamental physics and chemical *** solving the ionization-coupling equation theoretically, we can simultaneously address strong-field ionization and coupling dynamics in ions. By employing the driving pulse at the wavelength of 1580 nm, we show that the B2Σu+state of the strong field ionization created N2+could be populated by polarization effect and five-photon resonance but there is no population inversion between X2Σg+and B2Σu+states for the nitrogen molecular ions aligning along the laser polarization. In addition, both the ultraviolet supercontinuum and the attosecond transient absorption spectroscopy（ATAS） are calculated to illustrate the characteristics of population and coherence. The Stark shift observed from the transient absorption confirms the origin of ultraviolet supercontinuum. Our results show the evolution of the absorption spectral lineshape, varying from Lorentzian to Fano to inverted Lorentzian and back forth and the optical gain is achieved at 394 eV due to the vibrational coherent dynamics. This study offers valuable insights into the strong-field quantum optics of molecular ions.

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Nattokinase as a functional food ingredient:therapeutic applications and mechanisms in age-related diseases

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Food Science and Human Wellness 2024年第5期13卷 2401-2409页

作者： Hao Wu qian zhang Hao Suo Feng Xu Wanxu Huang Dan Ohtan Wang Wuya College of Innovation Shenyang Pharmaceutical UniversityShenyang 110016China College of Optoelectronic Engineering and Institute for Innovative Development of Food IndustryShenzhen UniversityShenzhen 518060China College of Life Sciences and Biopharmaceutical Shenyang Pharmaceutical UniversityShenyang 110016China The Fifth Affiliated Hospital of Guangzhou Medical University Guangzhou 510700China State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process Lianyungang 222001China RIKEN Center for Biosystems Dynamics Research Kobe 650-0047Japan Graduate School of Biostudies Kyoto UniversityKyoto 606-8501Japan

Consumption of natto,a traditional eastern Asian food made of fermented soybeans by Bacillus subtilis,has long been linked to healthy aging and longer human *** the key thrombolytic ingredient of natto,the serine protease nattokinase(NK)has been developed into a widely-used dietary *** has shown excellent anti-thrombus,thrombolytic,and anti-inflammation activities that potentially delay aging and provide therapeutic effects on aging-related *** this review,we critically overview the experimental and clinical evidence in the past 20 years that support the beneficial function of NK in the prevention and treatment of aging-related diseases,including cardiovascular diseases,Alzheimer’s disease,other abnormalities and *** focus on the underlying molecular mechanisms and recent advances in application methods that are aimed at further development of NK for healthier aging of modern *** challenges and unsolved issues in this area are also discussed.

关键词： Nattokinase Functional food ingredient Aging-related diseases Cardiovascular diseases Inflammation

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