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Aerosol jet printing of surface acoustic wave microfluidic devices

Microsystems & Nanoengineering 2024年第1期10卷 231-242页

作者： Joseph Rich Brian Cole Teng Li Brandon Lu Hanyu Fu Brittany N.Smith Jianping Xia Shujie Yang Ruoyu Zhong James L.Doherty kanji kaneko Hiroaki Suzuki Zhenhua Tian Aaron D.Franklin Tony Jun Huang Department of Biomedical Engineering Duke UniversityDurhamNC 27708USA Department of Electrical and Computer Engineering Duke UniversityDurhamNC 27708USA Department of Mechanical Engineering Virginia Polytechnic Institute and State UniversityBlacksburgVA 24061USA Thomas Lord Department of Mechanical Engineering and Materials Science Duke UniversityDurhamNC 27708USA Deptartment of Precision Mechanics Faculty of Science and EngineeringChuo UniversityTokyo 112-8551Japan Department of Chemistry Duke UniversityDurhamNC 27708USA

The addition of surface acoustic wave(SAW)technologies to microfluidics has greatly advanced lab-on-a-chip applications due to their unique and powerful attributes,including high-precision manipulation,versatility,integrability,biocompatibility,contactless nature,and rapid ***,the development of SAW microfluidic devices is limited by complex and time-consuming micro/nanofabrication techniques and access to cleanroom facilities for multistep photolithography and vacuum-based *** simplify the fabrication of SAW microfluidic devices with customizable dimensions and functions,we utilized the additive manufacturing technique of aerosol jet *** successfully fabricated customized SAW microfluidic devices of varying materials,including silver nanowires,graphene,and poly(3,4-ethylenedioxythiophene)polystyrene sulfonate(PEDOT:PSS).To characterize and compare the acoustic actuation performance of these aerosol jet printed SAW microfluidic devices with their cleanroom-fabricated counterparts,the wave displacements and resonant frequencies of the different fabricated devices were directly measured through scanning laser Doppler ***,to exhibit the capability of the aerosol jet printed devices for lab-on-a-chip applications,we successfully conducted acoustic streaming and particle concentration ***,we demonstrated a novel solution-based,direct-write,single-step,cleanroom-free additive manufacturing technique to rapidly develop SAW microfluidic devices that shows viability for applications in the fields of biology,chemistry,engineering,and medicine.

关键词： printing wave fluid

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Comment on:Recurrence after spontaneous separation of epiretinal membrane in a young woman:a case report

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 783-784页

作者： Yusuke Kameda Yutaka kaneko Karin Ishinabe Nichika Fukuoka Yotsuya-sanchome Ekimae Eye Clinic Tokyo 160-0004Japan Department of Ophthalmology and Visual Sciences Yamagata University Faculty of MedicineYamagata 990-9585Japan

Dear Editor,Herein,we provide a commentary on the recently published article by Zeng QZ and Yu WZ[1].This case report provides interesting novel insights into the recurrence of epiretinal membrane(ERM)following self-separation in a young *** addition to the study,we have been investigating spontaneous ERM release for many years and have recently published a related paper[2].

关键词： separation young release

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Superficial femoral artery pseudoaneurysm at implantation site of drug eluting stent discovered due to bacteremia:A case report

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World Journal of Clinical Cases 2024年第17期12卷 3194-3199页

作者： Takafumi Akai Shintarou Ninomiya Takanori kaneko Department of Vascular Surgery Asahi General HospitalChibaAsahi 289-2511Japan

BACKGROUND Drug-eluting stents(DES)are used to treat lower extremity arterial *** DES treatment,aneurysmal degeneration occasionally occurs,especially with fluoropolymer-based ***,the incidence of pseudoaneurysms after DES placement is rarely reported in the lower extremity region,although there have been several reports on pseudoaneurysm formation after DES placement in the coronary artery *** SUMMARY We report the case of a 64-year-old man who presented with fever and pain in his left hand after *** was diagnosed by blood culture,and after admission,he developed pain on the medial side of the right thigh.A pseudoaneurysm was observed in the right superficial femoral artery(SFA)at the proximal end of a previously placed *** bacteremia was thought to have been caused by a pseudoaneurysm of the left superficial brachial artery,and the pseudoaneurysm of the left superficial brachial artery was removed after antibiotic *** pseudoaneurysm of the right SFA rapidly expanded after admission,but the expansion rate was reduced after infection *** months after the first admission,the pseudoaneurysm of the left SFA was re-moved and in situ revascularization performed using a rifampicin-soaked Dacron *** Although pseudoaneurysm after DES placement in the lower extremity region is rare,it must be considered in patients with bacteremia.

关键词： Pseudoaneurysm Drug eluting stent Superficial femoral artery Bacteremia Revascularization Case report

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Malnutrition and Its Association with the Mortality of Patients with Femoral Intertrochanteric Fractures: A Retrospective Analysis of Japanese Patients

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Open Journal of Orthopedics 2024年第1期14卷 22-31页

作者： Taizo kaneko Kyoko Matsudaira Kentaro Hayakawa Fumiaki Tokimura Tsuyoshi Miyazaki Department of Orthopaedic Surgery Tokyo Metropolitan Institute for Geriatrics and Gerontology Tokyo Japan

Background: The incidence of femoral intertrochanteric fractures in older adults is higher than that of femoral neck fractures;however, both conditions are often analyzed together as proximal femoral fractures. Considering the difference in treatment, postoperative complication, and mortality risk, these two fractures should be analyzed separately. This study aimed to analyze 1-year mortality and its risk factors in patients with surgically treated femoral intertrochanteric fractures. Methods: Consecutive patients with intertrochanteric fractures who underwent surgical interventions at our institution between January 2017 and December 2021 were retrospectively reviewed. A total of 238 patients were eligible for inclusion in this study. Patients’ demographic and clinical information were retrospectively collected. Patients were divided into the 1-year mortality (n = 16) and survival (n = 222) groups. The incidence of 1-year mortality and its independent risk factors were investigated using univariate and multivariate logistic regression analyses. Results: The mean age of patients was 85.6 ± 8.5 years. The 1-year mortality rate was 6.7% (16/238). Preoperative albumin level, the Geriatric Nutritional Risk Index (GNRI), and malnutrition status (GNRI p = 0.02, p = 0.02, and p = 0.0011, respectively). Multivariate analysis showed that malnutrition status (GNRI p = 0.035) was an independent risk factor for 1-year mortality. Conclusion: Malnutrition status assessed using GNRI (GNRI < 92) was an independent risk factor for 1-year mortality. Our findings suggest that GNRI may be an effective screening tool for predicting postoperative 1-year mortality of patients with surgically treated femoral intertrochanteric fractures.

关键词： Intertrochanteric Fracture Mortality Geriatric Nutritional Risk Index Malnutrition Risk Factor

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A Case Report of Kissing Molars Class II

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Open Journal of Stomatology 2024年第5期14卷 249-254页

作者： Toshiyuki Inou Keiichi Uchida Keiko kaneko Anna Fuji Nina Wakimoto Tatsuo Takaya Hiroyuki Kitamura Hiroshi Mori Yuji Kurihara Department of Oral Diagnostics and Comprehensive Dentistry Matsumoto Dental University Hospital Shiojiri Japan Department of Oral and Maxillofacial Surgery School of Dentistry Matsumoto Dental University Shiojiri Japan

Kissing molars (KMs) is a condition of occlusal molar surfaces in a single follicular space with roots extending in opposite directions. Here, we have reported a case of KMs in a 58-year-old woman. The patient complained of pain in the right mandibular molar region and was diagnosed with KMs consisting of the right mandibular second and third molars. Because of the patient’s pain having subsided at the time of the visit and her unwillingness to undergo tooth extraction, the patient was followed up. KMs is classified into three classes (I-III) and is either true-KMs or pseudo-KMs and presents with or without cystic variants of dental follicles. The presents as true-KMs class II without a cystic variant. With reference to the literature and based on our analysis, the mean age of patients affected by this specific case of KMs is 31.7 years and unilateral KMs is relatively more common (85.7%). Histopathological findings of dentigerous cysts are more often indicated (42.9%). The treatment policy for KMs should therefore be based on the classification of KMs. Importantly, the focus should be on preserving the first and second molars as much as possible. The treatment approach, such as the employment of surgical removal or orthodontics, should be determined by considering the associated factors such as the crowns, tissues, and age of the patient.

关键词： Kissing Molars Mandibular Second Molar Mandibular Third Molar Cone-Beam Computed Tomography

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论唐代皇帝让位时的改元——玄宗缘何于十二月改元开元

唐史论丛

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唐史论丛 2024年第1期 31-46页

作者： [日]金子修一王坤(译) 日本国学院大学西安电子科技大学外国语学院

引言2019年日本天皇退位并随之改元,从而引发了日本国民对于皇位继承方式及年号的极大关心。笔者也承蒙加藤阳子女士约稿,发表了《中国皇帝的让位与元号[1]》一文[2],收录于加藤女士编著的《天皇是如何继承的——天皇的身体与皇位继承... 详细信息

引言2019年日本天皇退位并随之改元,从而引发了日本国民对于皇位继承方式及年号的极大关心。笔者也承蒙加藤阳子女士约稿,发表了《中国皇帝的让位与元号[1]》一文[2],收录于加藤女士编著的《天皇是如何继承的——天皇的身体与皇位继承》一书中。不仅是在古代中国,大凡世界上的君主国在先王(君主)死后都会立新王,而像日本“院政时期”[3]那样,以先皇让位的形式为惯例的反而是例外。

关键词：皇位继承日本天皇君主国加藤改元

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北海道鲱鱼渔场建筑的谱系——海洋文化传播视角下的建筑空间及其近代化

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新建筑 2024年第2期 53-58页

作者：金子晋也平辉雷蕙玮札幌市立大学日本华南理工大学建筑学院亚热带建筑与城市科学全国重点实验室广州510641 华南理工大学建筑学院广州510641

聚焦日本北海道鲱鱼渔场建筑的结构特征,从历史与环境变迁的交叠对其表现形式进行解读,并梳理其谱系。以18个鲱鱼渔场建筑案例为研究对象,基于相关研究将代表性建筑形式分为5类:19世纪的“运上屋”和“渔家”,以及20世纪前后的“番屋建... 详细信息

聚焦日本北海道鲱鱼渔场建筑的结构特征,从历史与环境变迁的交叠对其表现形式进行解读,并梳理其谱系。以18个鲱鱼渔场建筑案例为研究对象,基于相关研究将代表性建筑形式分为5类:19世纪的“运上屋”和“渔家”,以及20世纪前后的“番屋建筑”“积丹式民家”和“仕込屋”。通过各建筑类型的空间特点总结出两条谱系——从运上屋到仕込屋的谱系,以及从渔家到番屋建筑的谱系——由此论证鲱鱼渔场建筑在19世纪上半叶从日本传统民居派生形成,并在20世纪向渔业生产的功能空间转变的发展脉络;此外,从木构建筑文化的视角来看,南部硕大粗犷的梁柱结构以及北部屋架的抗风雪性能和顶梁柱形式是其突出特征。今后的研究发展方向包括:渔场建筑群整体的产业空间特征,以及日本东北与北海道地区的木构文化传播。

关键词：北海道渔场建筑木构建筑谱系架构

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Pancreaticoduodenectomy: how to handle a replaced right hepatic artery

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Hepatobiliary Surgery and Nutrition 2023年第2期12卷 280-283页

作者： Junichi kaneko Akihiko Ichida Yoshikuni Kawaguchi Kiyoshi Hasegawa Hepato-Biliary-Pancreatic Surgery Division Department of SurgeryGraduate School of MedicineThe University of TokyoTokyoJapan

Hepatobiliary pancreatic surgeons sometimes encounter an aberrant(or replaced)right hepatic artery(a-RHA,Hiatt types III-VI)during pancreaticoduodenectomy(PD).Arterial flow cutoff to the a-RHA may be associated with a biliary leak or stenosis at the choledocho-jejunostomy and liver ischemia,resulting in ischemic cholangitis,liver abscess,and sepsis(1).

关键词： Pancreaticoduodenectomy(PD) replaced right hepatic artery pancreatic ductal adenocarcinoma(PDAC)

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Numerical Investigation of Influence of Tip Leakage Flow on Secondary Flow in Transonic Centrifugal Compressor at Design Condition

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Journal of Thermal Science 2015年第2期24卷 117-122页

作者： Masanao kaneko Hoshio Tsujita Graduate School of Engineering Hosei University3-7-2Kajino-choKoganei-shiTokyo184-8584Japan Department of Mechanical Engineering Faculty of Science and EngineeringHosei University

In a centrifugal compressor, the leakage flow through the tip clearance generates the tip leakage vortex by the interaction with the main flow, and consequently makes the flow in the impeller passage more complex by the interaction with the passage vortex. In addition, the tip leakage vortex interacts with the shock wave on the suction surface near the blade tip in the transonic centrifugal compressor impeller. Therefore, the detailed examination for the influence of the tip leakage vortex becomes seriously important to improve the aerodynamic performance especially for the transonic centrifugal compressor. In this study, the flows in the transonic centrifugal compressor with and without the tip clearance at the design condition were analyzed numerically by using the commercial CFD code. The computed results revealed that the tip leakage vortex induced by the high loading at the blade tip around the leading edge affected the loss generation by the reduction or the suppression of the shock wave on the suction surface of the blade.

关键词：离心压缩机叶轮二次流动设计条件跨音速泄漏流数值模拟空气动力性能数值分析

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New native tissue repair for pelvic organ prolapse:Medium-term outcomes of laparoscopic vaginal stump-round ligament fixation

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World Journal of Clinical Cases 2023年第15期11卷 3457-3463页

作者： Toshiyuki Kakinuma Ayaka kaneko Kaoru Kakinuma Ken Imai Nobuhiro Takeshima Michitaka Ohwada Department of Obstetrics and Gynecology International University of Health and WelfareNasushiobara 329-2763Japan

BACKGROUND Laparoscopic sacrocolpopexy for pelvic organ prolapse(POP)is a new and widely used approach;however,ever since the United States Food and Drug Administration warned against the use of surgical mesh,repairs performed using patients’tissues[*** tissue repair(NTR)]instead of mesh have attracted much *** our hospital,laparoscopic sacrocolpopexy(the Shull method)was introduced in ***,patients with more severe POP who have a long vaginal canal and overextended uterosacral ligaments may not be candidates for this *** To validate a new NTR treatment for POP,we examined patients undergoing laparoscopic vaginal stump–round ligament fixation(the Kakinuma method).METHODS The study patients were 30 individuals with POP who underwent surgery using the Kakinuma method between January 2020 and December 2021 and who were followed up for>12 mo after *** retrospectively examined surgical outcomes for surgery duration,blood loss,intraoperative complications,and incidence of *** Kakinuma method involves round ligament suturing and fixation on both sides,effectively lifting the vaginal stump after laparoscopic *** The patients’mean age was 66.5±9.1(45-82)years,gravidity was 3.1±1.4(2-7),parity was 2.5±0.6(2-4)times,and body mass index was 24.5±3.3(20.9-32.8)kg/*** to the POP quantification stage classification,there were 8 patients with stage Ⅱ,11 with stage Ⅲ,and 11 with stage Ⅳ.The mean surgery duration was 113.4±22.6(88-148)min,and the mean blood loss was 26.5±39.7(10-150)*** were no perioperative *** of the patients exhibited reduced activities of daily living or cognitive impairment after hospital *** cases of POP recurrence were observed 12 mo after the *** The Kakinuma method,similar to conventional NTR,may be an effective treatment for POP.

关键词： Pelvic organ prolapse Native tissue repair Laparoscopic surgery Round ligament Kakinuma method

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