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Highly Luminescent N-Benzylcarbazole Compound Immobilized in Amino-functionalized Mesoporous SBA-15

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Chemical Research in Chinese Universities 2009年第4期25卷 518-521页

作者： WANG Hong-su GUAN Jing-qi SONG Ke XU Chen KAN qiu-bin College of Chemistry Jilin University Changchun 130021 P. R. China Department of Agronomy Jilin University Changchun 130062 P. R. China

An inorganic-organic photoluminescence solid material was obtained by immobilizing N-benzylcarbazole compound to an amino-functionalized mesoporous SBA-15（designated as N-benzylcarbazole-amino-SBA-15）.XRD,SEM,and N2 adsorption-desorption measurements indicate that the mesostructure of parent material SBA-15 was preserved after introducing amino and N-benzylcarbazole *** absorbance and emission studies reveal that the fluorescent N-benzylcarbazole-amino-SBA-15 exhibited red-shift character in comparison to pure N-benzylcarbazole.

关键词： N-Benzylcarbazole SBA-15 BCz-amino-SBA-15 Luminescence

Changing Comparative Advantage, Real Exchange Rate Impact and Sino-Japanese Trade Fluctuations

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China & World Economy 2016年第6期24卷 64-86页

作者： bin qiu Feifei Wu Baoqing Tang Xiuyan Liu Professor School of Economics and Management Southeast University China PhD candidate School of Economics and Management Southeast University China Associate Professor School of International Economics and Business Nanjing University of Finance and Economics China Associate Professor School of Economics and Management Southeast University China

China, as an important source country in the global value chain, especially in the East Asian production networks, has exerted significant influence on Sino-Japanese trade fluctuations. This paper explores the real factors that lead to the fluctuations in Sino- Japanese trade. Using the Hodrick-Prescott filter technique and OECD-WTO Statistics on Trade in Value Added from 1995 to 2011, the impact of the changing comparative advantage between the two countries is also examined. The empirical results indicate that determinants of the fluctuations in Sino-Japapese trade include changing comparative advantages, the volatility of the real exchange rate and quite a few external shocks. Some policy suggestions are put forward in regards to the stability of trade between the two countries.

关键词： comparative advantage real exchange rate trade fluctuation

New insights into the extraction of invisible gold in a low-grade high-sulfur Carlin-type gold concentrate by bio-pretreatment

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International Journal of Minerals,Metallurgy and Materials 2017年第10期24卷 1104-1111页

作者： Xiao-bin qiu Jian-kang Wen Song-tao Huang Hong-ying Yang Mei-lin Liu Biao Wu National Engineering Laboratory of Biohydrometallurgy General Research Institute for Nonferrous Metals School of Metallurgy Northeastern University

To extract gold from a low-grade(13.43 g/t) and high-sulfur(39.94wt% sulfide sulfur) Carlin-type gold concentrate from the Nibao deposit, Guizhou, a bio-pretreatment followed by carbon-in-pulp(CIP) cyanide leaching process was used. Various methods were used to detect the low-grade gold in the concentrate; however, only time-of-flight secondary-ion mass spectrometry(TOF-SIMS) was successful. With bio-pretreatment, the gold recovery rate increased by approximately 70.16% compared with that obtained by direct cyanide leaching of the concentrate. Various attempts were made to increase the final gold recovery rate. However, approximately 20wt% of the gold was non-extractable. To determine the nature of this non-extractable gold, mineralogy liberation analysis(MLA), formation of secondary product during the bio-pretreatment, and the preg-robbing capacity of the carbonaceous matter in the ore were investigated. The results indicated that at least four factors affected the gold recovery rate: gold occurrence, tight junctions of gold-bearing pyrite with gangue minerals, jarosite coating of the ore, and the carbonaceous matter content.

关键词： gold ore invisible gold bio-pretreatment mineralogy liberation analysis secondary product carbonaceous matter

Nanofiber self-consistent additive manufacturing process for 3D microfluidics

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Microsystems & Nanoengineering 2022年第5期8卷 239-246页

作者： bin qiu Xiaojun Chen Feng Xu Dongyang Wu Yike Zhou Wenchang Tu Hang Jin Gonghan He Songyue Chen Daoheng Sun Fujian Micro/Nano Manufacturing Engineering Technology Research Center Xiamen UniversityXiamen 361102China School of Mechanical and Electrical Engineering Lingnan Normal UniversityZhanjiang 524000China

3D microfluidic devices have emerged as powerful platforms for analytical chemistry,biomedical sensors,and microscale fluid manipulation.3D printing technology,owing to its structural fabrication flexibility,has drawn extensive attention in the field of 3D microfluidics ***,the collapse of suspended structures and residues of sacrificial materials greatly restrict the application of this technology,especially for extremely narrow channel *** this paper,a 3D printing strategy named nanofiber self-consistent additive manufacturing(NSCAM)is proposed for integrated 3D microfluidic chip fabrication with porous nanofibers as supporting structures,which avoids the sacrificial layer release *** the NSCAM process,electrospinning and electrohydrodynamic jet(E-jet)writing are alternately *** porous polyimide nanofiber mats formed by electrospinning are ingeniously applied as both supporting structures for the suspended layer and percolating media for liquid flow,while the polydimethylsiloxane E-jet writing ink printed on the nanofiber mats(named construction fluid in this paper)controllably permeates through the porous *** curing,the resultant construction fluid–nanofiber composites are formed as 3D channel *** a proof of concept,a microfluidic pressure-gain valve,which contains typical features of narrow channels and movable membranes,was fabricated,and the printed valve was totally closed under a control pressure of 45 kPa with a fast dynamic response of 52.6 ms,indicating the feasibility of ***,we believe NSCAM is a promising technique for manufacturing microdevices that include movable membrane cavities,pillar cavities,and porous scaffolds,showing broad applications in 3D microfluidics,soft robot drivers or sensors,and organ-on-a-chip systems.

关键词： fiber fluid additive

Solitary primary pulmonary synovial sarcoma:A case report

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World Journal of Clinical Cases 2022年第15期10卷 5103-5110页

作者： Wei-Wei He Zhi-Xin Huang Wen-Jing Wang Yu-Lei Li qiu-Yuan Xia Yong-bin qiu Yi Shi Hui-Ming Sun Department of Respiratory and Critical Care Medicine Nanjing Yimin HospitalNanjing 210000Jiangsu ProvinceChina Department of Pathology Jinling HospitalNanjing 210002Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Jinling HospitalNanjing 210002Jiangsu ProvinceChina

BACKGROUND Synovial sarcoma(SS)is an uncommon and highly malignant soft tissue sarcoma in the clinic,with primary pulmonary SS(PPSS)being extremely ***,we describe the clinical characteristics,diagnosis,and treatment of a solitary PPSS case confirmed via surgical resection and fluorescence in situ hybridization(FISH).CASE SUMMARY A 33-year-old man was admitted because of intermittent coughing and hemoptysis for one month,with lung shadows observed for two *** positron emission tomography-computed tomography(PET-CT)revealed a solitary mass in the upper lobe of the right lung,with uneven radioactivity uptake and a maximum standardized uptake value of *** greyish-yellow specimen obtained following thoracoscopic resection was covered with small multinodulated structures and consisted of soft *** and eosin staining revealed spindle-shaped malignant tumor *** indicated these tumor cells were CD99 and ***,the FISH test revealed synovial sarcoma translocation genetic reassortment,which confirmed the diagnosis of *** PPSS is extremely rare and tends to be misdiagnosed as many primary pulmonary ***-CT,histologic analysis,and FISH tests can be used to differentiate PPSS from other *** resection is regularly recommended for the treatment of solitary PPSS and is helpful for improving the prognosis.

关键词： Primary pulmonary synovial sarcoma Spindle cells Fluorescence in situ hybridization Synovial sarcoma translocation Solitary pulmonary nodule Positron emission tomography-computed tomography Case report

Hydroxylation of Benzene to Phenol via Hydrogen Peroxide in Hydrophilic Triethylammonium Acetate Ionic Liquid

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Chemical Research in Chinese Universities 2011年第3期27卷 503-507页

作者： HU Xiao-ke ZHU Liang-fang GUO bin LIU qiu-yuan LI Gui-ying HU Chang-wei Key Laboratory of Green Chemistry and Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China

A new Fenton-like system in a medium of hydrophilic triethylammonium type of ionic liquid（IL） was used for the hydroxylation of benzene to phenol. The triethylammonium acetate（[Et3NH][CH3COO]） IL exhibited retardation performance for the decomposition of H2O2 and protection performance for the further oxidation of phenol, thus the yield and selectivity to phenol were promoted greatly. The acidity of the system was proved to be an important factor for the selectivity to phenol. The utilization of H2O2 and the selectivity to phenol, as well as the Turnover number（TON） of the catalyst were effectively enhanced by a benzene-[Et3NH][CH3COO] bi-phase system. The catalyst with [Et3NH][CH3COO] IL was recycled with stable catalytic performance.

关键词： Hydrophilic Ionic liquid Fenton-like Hydroxylation

Mitogenome and phylogenetic analyses support rapid diversification among species groups of small-eared shrews genus Cryptotis(Mammalia:Eulipotyphla:Soricidae)

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Zoological Research 2021年第6期42卷 739-745页

作者： Kai He Xing Chen Yin-bin qiu Zhu Liu Wen-Zhi Wang Neal Woodman Jesus E.Maldonado Xinghua Pan Department of Biochemistry and Molecular Biology School of Basic Medical Sciencesand Guangdong Provincial Key aboratory of Single Cell Technology and ApplicationSouthern Medical UniversityGuangzhouGuangdong 510515China Wildlife Forensic Science Service KunmingYunnan 650223China School of Zoology Faculty of Life sciencesTel Aviv UniversityTel Aviv 6997801 Israel College of Life Science and Technology Mudanjiang Normal UniversityMudanjiangHeilongjiang 157012China Guizhou Academy of Testing and Analysis GuiyangGuizhou 550002China U.S.Geological Survey Eastern Ecological Science CenterLaurelMD 20708USA Division of Mammals Department of Vertebrate ZoologyNational Museum of Natural HistorySmithsonian InstitutionWashingtonDC 20560USA Center for Conservation Genomics Smithsonian Conservation Biology InstituteWashingtonDC 20008USA

The small-eared shrew genus Cryptotis is the third largest in the family Soricidae and occurs in North,Central,and northern South *** Mexico and Central and South America,most species inhabit geographically isolated moist,montane habitats at middle and high elevations in a typical sky-island *** 49 recognized species have been partitioned into as many as six species groups based on morphological and molecular phylogenetic *** relationships among these species groups are poorly resolved,and their evolutionary histories,including migration patterns and locomotor adaptations,remain ***,we provide a new phylogeny incorporating complete mitochondrial genomes(mitogenomes)and supermatrix *** compared different evolutionary scenarios using approximately unbiased(AU),Kishino-Hasegawa(KH),and Shimodaira-Hasegawa(SH)statistical *** phylogenetic hypothesis based on mitogenomes revealed novel relationships supporting a basal position for the Cryptotis parvusgroup in the genus,and a close relationship between *** and one clade of the *** former relationship is consistent with the least derived humerus morphology and northern distribution of the *** latter relationship i mplies multiple migrations between Central and South *** lack of fine resolution for the species group relationships may be due partly to the lack of taxon *** contrast,multi-approach analyses suggest that the unresolved relationships may be a result of rapid diversification during the early stages of Cryptotis evolution.

关键词： Cryptotis Capture hybridization Hard polytomy Mitochondrial genome Rapid diversification Soricidae

A Novel Enzyme-Responded Controlled Release Electrochemical Biosensor for Hyaluronidase Activity Detection

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Journal of Analysis and Testing 2021年第1期5卷 69-75页

作者： Zhi-Xin Li Jia-Lu Zhang Jian Wang Fang Luo bin qiu Long-Hua Guo Zhen-Yu Lin Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection for Food SafetyCollege of ChemistryFuzhou UniversityFuzhou 350116China College of Biological Chemical Sciences and EngineeringJiaxing UniversityJiaxing 314001China

Hyaluronidase(HAase)has been regarded as one of the potential cancer *** this study,a novel enzyme-responded controlled release electrochemical biosensor has been constructed for HAase *** blue(MB)can be adsorbed on hyaluronic acid(HA)to form macromolecular HA–MB complex first through electrostatic interaction between anionic HA and positively charged *** prepared complex cannot be filtered out through centrifugal ultrafiltration,and small electrochemical signal can be recorded from the *** the help of HAase,HA–MB complex can be cleaved into small pieces through enzyme *** small pieces of HA–MB complex can be easily released from the macromolecular HA–MB complex to the ultrafiltrate by centrifugal ***,the enhanced electrochemical signal from MB can be detected in the above-mentioned *** enhanced diff erential pulse voltammetric response of the system has a linear relationship with HAase concentration in the range of 4.0–60 U·mL^(-1),with the limit of detection of 0.28 U·mL^(-1).The developed strategy has been successfully applied to detect HAase activity in urine samples.

关键词： Electrostatic interaction Controlled release Hyaluronic acid Hyaluronidase Methylene blue

Npy deletion in an alcohol non-preferring rat model elicits differential effects on alcohol consumption and body weight

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Journal of Genetics and Genomics 2016年第7期43卷 421-430页

作者： bin qiu Richard L.Bell Yong Cao Lingling Zhang Robert B.Stewart Tamara Graves Lawrence Lumeng Weidong Yong Tiebing Liang Institute of Laboratory Animal Science Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100021 China Department of Psychiatry Indiana University School of Medicine Indianapolis IN 46202 USA Department of Gastroenterology Indiana University School of Medicine Indianapolis IN 46202 USA Department of Psychology Purdue School of Science Indiana University-Purdue University of Indianapolis Indianapolis IN 46202 USA Experimental Medicine Center The First Affiliated Hospital of Sichuan Medical University Luzhou 646000 China

Neuropeptide Y（NPY） is widely expressed in the central nervous system and influences many physiological *** is located within the rat quantitative trait locus（QTL） for alcohol preference on chromosome ***-nonpreferring（NP） rats consume very little alcohol,but have significantly higher NPY expression in the brain than alcohol-preferring（P） *** capitalized on this phenotypic difference by creating an Npy knockout（KO） rat using the inbred NP background to evaluate NPY effects on alcohol *** finger nuclease（ZNF） technology was applied,resulting in a 26-bp deletion in the Npy ***-PCR,Western blotting and immunohistochemistry confirmed the absence of Npy mRNA and protein in KO *** consumption was increased in Npy＋/- but not Npy-/- rats,while Npy-/- rats displayed significantly lower body weight when compared to Npy^（＋/＋） *** whole brain tissue,expression levels of Npy-related and other alcohol-associated genes,Npy1 r,Npy2r,Npy5 r,Agrp,Mc3 r,Mc4r,Crh and CrMr,were significantly greater in Npy-/- rats,whereas Pome and Crhr2 expressions were highest in Npy＋/- *** findings suggest that the NPY-system works in close coordination with the melanocortin（MC） and corticotropin-releasing hormone（CRH） systems to modulate alcohol intake and body weight.

关键词： Knockout rat Alcohol drinking behavior NPY and receptors CRH and receptors Melanocortin and receptors BDNF