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Bone-targeted lipoplex-loaded three-dimensional bioprinting bilayer scaffold enhanced bone regeneration

Regenerative Biomaterials 2024年第4期3卷 138-148页

作者： Woo-Jin Kim Jeong-Hyun ryu Ji Won Kim Ki-Tae Kim Hye-Rim shin Heein Yoon Hyun-Mo Ryoo young-Dan Cho Department of Molecular Genetics School of Dentistry and Dental Research InstituteSeoul National UniversitySeoul03080Republic of Korea Department of Periodontology School of Dentistry and Dental Research InstituteSeoul National University and Seoul National University Dental HospitalSeoul03080Republic of Korea

Clinical bone-morphogenetic protein 2(BMP2)treatment for bone regeneration,often resulting in complications like soft tissue inflammation and ectopic ossification due to high dosages and non-specific delivery systems,necessitates research into improved biomaterials for better BMP2 stability and *** tackle this challenge,we introduced a groundbreaking bone-targeted,lipoplex-loaded,three-dimensional bioprinted bilayer scaffold,termed the polycaprolactone-bioink-nanoparticle(PBN)scaffold,aimed at boosting bone *** encapsulated BMP2 within the fibroin nanoparticle based lipoplex(Fibroplex)and functionalized it with Dss6 for bone tissue-specific targeting.3D printing technology enables customized,porous PCL scaffolds for bone healing and soft tissue growth,with a two-step bioprinting process creating a cellular lattice structure and a bioink grid using gelatin-alginate hydrogel and Dss6-Fibroplex,shown to support effective nutrient exchange and cell growth at specific pore *** PBN scaffold is predicted through in silico analysis to exhibit biased BMP2 release between bone and soft tissue,a finding validated by in vitro osteogenic differentiation *** PBN scaffold was evaluated for critical calvarial defects,focusing on sustained BMP2 delivery,prevention of soft tissue cell infiltration and controlled fiber membrane pore size in *** PBN scaffold demonstrated a more than eight times longer BMP2 release time than that of the collagen sponge,promoting osteogenic differentiation and bone regeneration in a calvarial defect *** findings suggest that the PBN scaffold enhanced the local concentration of BMP2 in bone defects through sustained release and improved the spatial arrangement of bone formation,thereby reducing the risk of heterotopic ossification.

关键词： 3D bioprinting bone-targeting lipoplex BMP2 bone regeneration

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Alectinib-Induced Immune Hemolytic Anemia in a Patient with Lung Adenocarcinoma: Case Report and Literature Review

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Case Reports in Clinical Medicine 2024年第8期13卷 321-327页

作者： Chai young Lee Yon Ju ryu Division of Pulmonary and Critical Care Medicine College of Medicine Ewha Womans University Seoul Republic of Korea

Alectinib is a selective Anaplastic Lymphoma Kinase (ALK) tyrosine kinase inhibitor used as standard therapy for ALK-rearranged lung adenocarcinoma. Hemolytic anemia is considered a rare but significant adverse event of alectinib. Here, we report the case of a 78-year-old female with advanced ALK rearrangement-positive lung adenocarcinoma who developed grade 4 drug-induced hemolytic anemia after receiving alectinib as first-line therapy. We discontinued alectinib treatment and switched to brigatinib. As a result, anemia improved without recurrence of lung adenocarcinoma over one year.

关键词： Non-small Cell Lung Cancer Alectinib Brigatinib Hemolytic Anemia Drug-Induced Hemolytic Anemia

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Air-stable,all-dry transferred Res_(2)/Gase heterostructure-based NO_(2)gas sensor

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Journal of Materials science & Technology 2024年第1期168卷 79-87页

作者： A.Venkatesan Hyeyoon ryu Anupom Devnath Hyungyu Yoo seunghyun Lee Department of Electronic Engineering Kyung Hee UniversityYongin-Si 17104South Korea Department of Electronics and Information Convergence Engineering Kyung Hee UniversityYongin-Si 17104South Korea

Two-dimensional(2D)materials have gained considerable attention in chemical sensing owing to their naturally high surface-to-volume ***,the poor response time and incomplete recovery re-strict their application in practical,high performance gas *** this work,we fabricated air-stable Res_(2)/Gase heterostructure-based NO_(2)gas sensors with excellent gas sensing response,recovery,selectiv-ity and a low limit of detection(LOD)toward nitrogen dioxide(NO_(2)).The Res_(2)/Gase heterostructure was prepared via mechanical exfoliation and an all-dry transfer *** the sensing measurements,temperature-dependant transport measurements were carried *** schottky Barrier Height(sBH)of the Res_(2)/Gase heterostructure was calculated and the corresponding transport mechanisms were *** fabricated gas sensors showed a significant response enhancement with full reversibility to-ward ppm-level NO_(2)(response of∼17%at 3 ppm,a LOD of∼556 ppb)at an operating temperature of(33°C).In particular,the total response and recovery time of the Res_(2)/Gase was revealed to be less than 4 min(∼38 s and∼174 s,respectively)for the 250 ppm concentration,which is one of the best response and recovery time toward ppm-level NO_(2).The excellent sensing performances and recovery characteris-tics of the Res_(2)/Gase structure are attributed to its efficient charge separation,unique interlayer coupling and desirable band *** atomically thin,ultrasensitive gas sensor that operates at room tem-perature is a strong technological contender to conventional metal oxide gas sensors,which often require elevated temperatures.

关键词： 2D materials All-dry transfer Gas sensor Van der Waals heterostructure Res_(2)/Gase Gas sensing response Transition metal dichalcogenide

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Positive regulation of cell proliferation by the miR-1290-EHHADH axis in hepatocellular carcinoma

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Cancer Communications 2024年第6期44卷 705-709页

作者： Jinkwon Lee Gyeonghwa Kim Tae-su Han Eunsun Jung Taesang son Kwangho Kim Kiyoon Kwon Yuna Roh Tae young ryu In Hwan Tae Yunsang Kang Byungheon Lee Yu Rim Lee soo young Park Won young Tak Dae-soo Kim Mi-young son Keun Hur Hyun-soo Cho stem Cell Convergence Research Center Korea Research Institute of Bioscience and BiotechnologyDaejeonRepublic of Korea Department of Bioscience Korea University of Science and TechnologyDaejeonRepublic of Korea Department of Biochemistry and Cell Biology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Biological science Sungkyunkwan UniversitySuwonRepublic of Korea Department of Internal Medicine School of MedicineKyungpook National University HospitalDaeguRepublic of Korea Department of Biomedical Convergence science and Technology School of ConvergenceKyungpook National UniversityDaeguRepublic of Korea

Hepatocellular carcinoma(HCC)is the second most common cancer and the third leading cause of cancer-related death worldwide[1].Recently,HCC incidence and mortality rates have further increased due to changes in the global social environment and dietary habits[2].HCC is treated by surgical resection or combination chemotherapy,but the overall survival rate of HCC patients has not improved,and the recurrence rate is still high due to strong invasiveness and resistance to chemotherapy[3].

关键词： chemotherapy mortality cancer

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Light-Material Interactions Using Laser and Flash sources for Energy Conversion and storage Applications

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Nano-Micro Letters 2024年第12期16卷 468-514页

作者： Jung Hwan Park srinivas Pattipaka Geon-Tae Hwang Minok Park Yu Mi Woo young Bin Kim Han Eol Lee Chang Kyu Jeong Tiandong Zhang Yuho Min Kwi-Il Park Keon Jae Lee Jungho ryu Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering)Kumoh National Institute of Technology61Daehak-RoGumiGyeongbuk 39177Republic of Korea Department of Materials science and Engineering Pukyong National University45Yongso-RoNam-GuBusan 48513Republic of Korea Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials science and Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju 54896JeonbukRepublic of Korea school of Electrical and Electronic Engineering Harbin University of Science and TechnologyHarbin 150080People’s Republic of China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080People’s Republic of China Department of Materials science and Metallurgical Engineering Kyungpook National University80 Daehak-RoBuk-GuDaegu 41566Republic of Korea school of Materials science and Engineering Yeungnam UniversityDaehak-RoGyeongsan-Si 38541Gyeongsangbuk-doRepublic of Korea

This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage *** discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material *** addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and ***,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and *** the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.

关键词： Light Light-material interaction Nanomaterials Energy conversion and storage devices

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Real-Time Tunable Gas sensing Platform Based on snO_(2) Nanoparticles Activated by Blue Micro-Light-Emitting Diodes

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Nano-Micro Letters 2024年第12期16卷 103-119页

作者： Gi Baek Nam Jung-El ryu Tae Hoon Eom seung Ju Kim Jun Min suh seungmin Lee sungkyun Choi Cheon Woo Moon seon Ju Park soo Min Lee Byungsoo Kim sung Hyuk Park Jin Wook Yang sangjin Min sohyeon Park sung Hwan Cho Hyuk Jin Kim sang Eon Jun Tae Hyung Lee Yeong Jae Kim Jae young Kim young Joon Hong Jong-In shim Hyung-Gi Byun Yongjo Park Inkyu Park sang-Wan ryu Ho Won Jang Department of Materials science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Research Laboratory of Electronics Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeMA 02139USA Ming Hsieh Department of Electrical and Computer Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Display Materials Engineering Soonchunhyang UniversityAsan 31538Republic of Korea Department of Photonics and Nanoelectronics BK21 FOUR ERICA-ACE CenterHanyang University ERICAAnsan 15588Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok 25913Republic of Korea Advance Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Physics Chonnam National UniversityGwangju 500-757Republic of Korea

Micro-light-emitting diodes(μLEDs)have gained significant interest as an activation source for gas sensors owing to their advantages,including room temperature operation and low power ***,despite these benefits,challenges still exist such as a limited range of detectable gases and slow *** this study,we present a blueμLED-integrated light-activated gas sensor array based on snO_(2)nanoparticles(NPs)that exhibit excellent sensitivity,tunable selectivity,and rapid detection with micro-watt level power *** optimal power forμLED is observed at the highest gas response,supported by finite-difference time-domain ***,we first report the visible light-activated selective detection of reducing gases using noble metal-decorated snO_(2)*** noble metals induce catalytic interaction with reducing gases,clearly distinguishing NH3,H2,and ***-time gas monitoring based on a fully hardwareimplemented light-activated sensing array was demonstrated,opening up new avenues for advancements in light-activated electronic nose technologies.

关键词： Micro-LED Gas sensor array Low power consumption Metal decoration Real-time detection

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A pilot clinical study to evaluate feasibility of using single patient classifier as a prognostic test in stage Ⅱ-Ⅲ gastric cancer patients

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Chinese Journal of Cancer Research 2024年第4期36卷 368-377页

作者： Ji Yeong An sung Eun Oh soomin Ahn Hyoung-II Kim Yoo Min Kim Minah Cho Keun Won ryu Hong Man Yoon young Kyu Park In Gyu Kwon sung Hoon Noh Kyung Hee Lee In Cho Myoung Won son Jong Won Kim young-Woo Kim Department of surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Republic of Korea Department of Pathology and Translational Genomics Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Republic of Korea Department of surgery Yonsei University College of MedicineSeoul 03722Republic of Korea Gastric Cancer Center Yonsei Cancer CenterYonsei University Health SystemSeoul 03722Republic of Korea Center for Gastric Cancer National Cancer CenterGoyang 10408Republic of Korea Department of surgery Chonnam National University Hwasun HospitalChonnam National University College of MedicineGwangju 58128Republic of Korea Department of surgery Gangnam Severance HospitalYonsei University College of MedicineSeoul 06273Republic of Korea Department of Hematology-Oncology Yeungnam University Medical CenterDaegu 42415Republic of Korea Department of surgery Soonchunhyang University College of MedicineBucheon 14584Republic of Korea Department of surgery Soonchunhyang University Cheonan HospitalSoonchunhyang University College of MedicineCheonan 31151Republic of Korea Department of surgery Chung-Ang University HospitalChung-Ang University College of MedicineSeoul 06973Republic of Korea

Objective:Precision medicine approaches emphasize the importance of reliable prognostic tools for guiding individualized therapy *** this study,we evaluated the clinical feasibility of the single patient classifier(sPC)test,a new clinical-grade prognostic assay,in stageⅡ-Ⅲgastric cancer ***:A prospective multicenter study was conducted,involving 237 patients who underwent gastrectomy between september 2019 and August 2020 across nine *** sPC test was employed to stratify patients into risk groups,and its feasibility and performance were *** primary endpoint was the proportion of the cases in which the test results were timely delivered before selecting postoperative ***,3-year disease-free survivals of risk groups were ***:The sPC test met the primary endpoint *** 99.5%of sPC tests were timely delivered to hospitals before the postoperative treatment *** a clinical setting,the median time from the specimen transfer to laboratory to the result delivery to hospital was 4 ***,3-year disease-free survivals were significantly different between risk groups classified with sPC ***:This study highlights the sPC test's feasibility in offering crucial information timely delivered for making informed decisions regarding postoperative treatment *** also provides evidence to support the implementation of a future prospective clinical trial aimed at evaluating the clinical utility of the sPC test in guiding personalized treatment decisions for gastric cancer patients.

关键词： Prognostic test advanced gastric cancer adjuvant chemotherapy feasibility gastrectomy

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Neuromodulation of the peripheral nervous system:Bioelectronic technology and prospective developments

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BMEMat(BioMedical Engineering Materials) 2024年第1期2卷 88-114页

作者： Hayoung song Moohyun Kim Enji Kim Jakyoung Lee Inhea Jeong Kyeonghee Lim s.oung young ryu Myoungjae Oh Younhee Kim Jang-Ung Park Department of Materials science and Engineering Yonsei UniversitySeoulSouth Korea Center for Nanomedicine Institute for Basic Science(IBS)SeoulSouth Korea Department of Neurosurgery Yonsei University College of MedicineSeoulSouth Korea Graduate Program of Nano Biomedical Engineering(NanoBME) Advanced Science InstituteYonsei UniversitySeoulSouth Korea

The peripheral nervous system(PNs)is a fascinatingly complex and crucial component of the human body,responsible for transmitting vital signals throughout the body's intricate network of *** efficient functioning is paramount to our health,with any dysfunction often resulting in serious medical conditions,including motor disorders,neurological diseases,and psychiatric *** strides in science and technology have made neuromodulation of the PNs a promising avenue for addressing these health *** involves modifying nerve activity using a range of techniques,such as electrical,chemical,optical,and mechanical *** plays a critical role in this effort,allowing for precise,controlled,and sustained stimulation of the *** paper provides an overview of the PNs,discusses the current state of neuromodulation devices,and presents emerging trends in the field,including advances in wireless power transfer and materials,that are shaping the future of neuromodulation.

关键词： bioelectronics neuromodulation peripheral nervous system

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Tailoring Classical Conditioning Behavior in TiO_(2) Nanowires:ZnO QDs-Based Optoelectronic Memristors for Neuromorphic Hardware

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Nano-Micro Letters 2024年第7期16卷 265-280页

作者： Wenxiao Wang Yaqi Wang Feifei Yin Hongsen Niu young-Kee shin Yang Li Eun-seong Kim Nam-young Kim school of Information science and Engineering University of JinanJinan 250022People’s Republic of China RFIC Centre NDAC CentreKwangwoon UniversityNowon-guSeoul 139-701South Korea Department of Electronics Engineering Kwangwoon UniversityNowon-GuSeoul 139-701South Korea school of Microelectronics Shandong UniversityJinan 250101People’s Republic of China Department of Molecular Medicine and Biopharmaceutical sciences Seoul National UniversitySeoul 08826South Korea

Neuromorphic hardware equipped with associative learn-ing capabilities presents fascinating applications in the next generation of artificial ***,research into synaptic devices exhibiting complex associative learning behaviors is still ***,an optoelec-tronic memristor based on Ag/TiO_(2) Nanowires:ZnO Quantum dots/FTO was proposed and constructed to emulate the biological associative learning *** implementation of synaptic behaviors,including long and short-term plasticity,and learning-forgetting-relearning behaviors,were achieved in the device through the application of light and electrical *** the optoelectronic co-modulated characteristics,a simulation of neuromorphic computing was conducted,resulting in a handwriting digit recognition accuracy of 88.9%.Furthermore,a 3×7 memristor array was constructed,confirming its application in artificial visual *** importantly,complex biological associative learning behaviors were emulated by mapping the light and electrical stimuli into conditioned and unconditioned stimuli,*** training through associative pairs,reflexes could be triggered solely using light ***-sively,under specific optoelectronic signal applications,the four features of classical conditioning,namely acquisition,extinction,recovery,and generalization,were elegantly *** work provides an optoelectronic memristor with associative behavior capabilities,offering a pathway for advancing brain-machine interfaces,autonomous robots,and machine self-learning in the future.

关键词： Artificial intelligence Classical conditioning Neuromorphic computing Artificial visual memory Optoelectronic memristors ZnO Quantum dots

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Comparison of Measurements for Enhanced Diffusion Problem in Chemical Reaction systems

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Chinese Journal of Chemistry 2024年第14期42卷 1659-1664页

作者： Ah-young Jee Ziyang Wen Huan Wang Beijing National Laboratory for Molecular sciences College of Chemistry and Molecular EngineeringBeijing Key Laboratory of Polymer Chemistry&Physics of Ministry of EducationPeking UniversityBeijing100871 China

The problem of molecular diffusion in the soup of chemical reactions attracts mounting interest across fields ranging from chemistry to biophysics to material *** reactions involve bond breakup and formation,whose time scale is typically on the orders of fs to ps,while molecular diffusion occurs at time scales ofμs to *** two processes are often considered orthogonal,given the vastly different *** serial results show that the enzyme's diffusion is enhanced in a substrate-dependent manner,which was further extended to small molecule reaction systems,challenging this classical ***,the results from different groups using different techniques do not quantitatively agree,and a general mechanism is yet to be *** summarize experimental studies on diffusion problems and seek to reconcile the interpretation with understanding the limits of measurement tools and the chemical nature of reaction *** molecular diffusion in chemical reactions will provide fresh thoughts in designing chemical systems such as molecular machines that harvest work at the nanoscale in a controllable manner.

关键词： Molecular diffusion Chemical reactions Enzyme reactions Active matter Diffusion measurements single-molecule studies Fluorescence Time-resolved spectroscopy

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