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Deposition of nanoporous BiVO;thin-film photocatalyst by reactive magnetron sputtering: Effect of total pressure and substrate

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Transactions of Nonferrous Metals Society of China 2022年第3期32卷 957-971页

作者： Siavash BAKHTIARNIA Saeed SHEIBANI Alain BILLARD eric aubry Mohammad ARAB POUR YAZDI School of Metallurgy and Materials Engineering College of EngineeringUniversity of TehranTehranIran Institut FEMTO-ST UMR 6174CNRSUniv.Bourgogne Franche-Comté15BAvenue des Montboucons25030 BesançonFrance

Nanoporous BiVO;thin films were deposited using reactive magnetron sputtering in Ar and O;atmosphere, on various substrates, employing pulsed direct-current(DC) power supplies applied to metallic Bi and V targets for rapid deposition. The procedure was followed by a post-annealing treatment in air to crystallize the photoactive monoclinic scheelite structure. The influence of total pressure and substrate on the crystal structure, morphology, microstructure, optical and photocatalytic properties of the films was investigated. The crystallization of monoclinic scheelite structure deposited on fused silica substrate starts at 250 ℃ and the films are stable up to 600 ℃. The morphology of the films is rather dense, despite at the high sputtering pressure(>2 Pa), with embedded nanopores. Among the thin films deposited on fused silica, the one deposited at 4.5 Pa exhibits the highest porosity(52%), with the lowest bandgap(2.44 eV) and it shows the highest photocatalytic activity in the degradation of Rhodamine-B(26% after 7 h) under visible light irradiation. The film deposited on the silicon substrate exhibits the highest photoactivity(53% after 7 h). Lack of hypsochromic shift in the UV-Vis temporal absorption spectra shows the dominance of the chromophore cleavage pathway in the photodecomposition.

关键词： photocatalysis BiVO4 thin film sputtering nanoporous film

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TRANSCATHETER CLOSURE OF LARGE SECUNDUM ATRIAL SEPTAL DEFECTS WITH AMPLATZER~ SEPTAL OCCLUDER

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Medical Bulletin of Shanghai Jiaotong University 2010年第1期22卷 40-46页

作者：杨震坤 aubry Pierre eric Brochet Jean-Michel Juliard Department of Cardiology Bichat-Claude Bernard HospitalAP-HP46 rue Henri Huchard Department of Cardiology Ruijin HospitalSchool of MedicineShanghai Jiaotong University

Objective To evaluate the safety and feasibility of transcatheter closure of large secundum atrial septal defects(ASDs)with Amplatzer~ septal occluder(ASO).Methods A total of 26 patients(age 16 to 67 years,median 43 years;body weight 52 to 102 kg,median 67 kg)with large ASDs underwent an attempted transcatheter closure using *** ASD was defined as those with a balloon-stretched diameter of ≥30 *** 81 patients with small-to-moderate ASD during same period who underwent closure served as *** In patients with large ASDs,the ASD dimension means were(22.1±3.2)mm(range from 16 to 30 mm)and(23.8±2.6)mm(range from 18 to 31mm)assessed by transesophageal echocardiography(TEE)and transthoracic echocardiography(TTE),*** mean balloon-stretched diameter of the ASD was(31.9±2.1)mm(range from 30 to 37mm).The size of device was(32.0±1.9)mm(range from 30 to 36mm).The transcatheter procedure was successful in all patients(100%).Seventeen deployments were performed using the conventional left atrium approach,and remaining 9 patients required the right upper pulmonary vein *** after deployment,TEE revealed that complete closure rate was 73%.Procedure-related complications were recorded in 3 patients(12%),including device embolization in one patient,pericardial effusion in one patient,and large hematoma at puncture site in one *** follow-up,the complete closure rate increased to 88% at 24h after procedure and 100% at 6 *** procedural success rates,immediate TEE results and TTE results at 24h and 6 months after procedure,were not significantly different between patients with large ASDs and those with small-to-moderate *** Transcatheter closure of large ASDs using ASO is technical feasible and relatively *** care selection and specific technique modification such as the right upper pulmonary vein approach is vital for the implantation success.

关键词： atrial septal defect transcatheter closure Amplatzer septal occluder

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CGH-based microarray detection of cryptic and novel copy number alterations and balanced translocations in cytogenetically abnormal cases of b-cell all

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Health 2013年第5期5卷 23-40页

作者： Roger A. Schultz Karen Tsuchiya aubry Furrow Marilyn L. Slovak Lisa D. McDaniel Meaghan Wall eric Crawford Yi Ning Reza Saleki Min Fang Victoria Cawich Caitlin E. Johnson Sara L. Minier Nicholas J. Neill S. Annie Morton Steve Byerly Urvashi Surti Theresa C. Brown Blake C. Ballif Lisa G. Shaffer Department of Molecular and Human Genetics Baylor College of Medicine Houston USA Empire Genomics Buffalo USA Fred Hutchinson Cancer Research Center Seattle USA Genetics Associates Inc. Nashville USA Johns Hopkins University School of Medicine Baltimore USA Magee-Womens Hospital University of Pittsburgh Medical Center Pittsburgh USA Pathology Associates Medical Laboratories (PAML) Spokane USA Paw Print Genetics Genetic Veterinary Sciences Inc. Spokane USA Seattle Children’s Hospital Seattle USA Signature Genomic Laboratories PerkinElmer Inc. Spokane USA Signature Genomic Laboratories PerkinElmer Inc. Spokane USA Sonora Quest Laboratories Tempe USA Victorian Cancer Cytogenetics Service St. Vincent’s Hospital Melbourne Fitzroy Australia

Acute lymphoblastic leukemia (ALL) is the most common malignancy in children, with the majority of cases being of precursor B-cell phenoltype. Conventional cytogenetic analysis plays an important role in the diagnosis of B-cell ALL, identifying characteristic chromosomal abnormalities associated with a given prognosis therein facilitating optimized treatment. The more recent introduction of microarray technology to the analysis of B-cell ALL has afforded both higher resolution for the detection of known abnormalities and an ability to identify novel copy number abnormalities (CNAs) with potential clinical relevance. In the current study, microarray analysis was performed on 20 cytogenetically abnormal B-cell ALL cases (10 pediatric and 10 adult), while a novel microarray-based balanced-translocation detection methodology (translocation CGH or tCGH) was applied to that subset of cases with a known or suspected recurrent balanced translocation. Standard microarray analysis identified that CNAs was not detected by previous conventional cytogenetics in 75% (15/20) cases. tCGH identified 9/9 (100%) balanced translocations defining BCR/ABL1 (x4), ETV6/RUNX1 (x3), and MLL/AFF1 (x2) breakpoints with high resolution. The results illustrate the improved molecular detail afforded by these technologies and a comparison of translocation breakpoints, CNAs and patient age offers new insights into tumor biology with potential prognostic significance.

关键词： Acute Lymphoblastic Leukemia B-Cell ALL Microarray Balanced Translocation Translocation CGH Hematologic Malignancies

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