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Bee venom phospholipase A2 ameliorates amyloidogenesis and neuroinflammation through inhibition of signal transducer and activator of transcription-3 pathway in Tg2576 mice

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Translational Neurodegeneration 2019年第1期8卷 317-332页

作者： Hyeon Joo Ham Sang-Bae Han Jaesuk yun In Jun Yeo Young Wan Ham Se hyun Kim Pil-Hoon Park Dong-Young Choi Jin Tae Hong College of Pharmacy and Medical Research Center Chungbuk National UniversityOsongsaengmyeong 1-roOsong-eupHeungdeok-guCheongjuChungbuk 28160Republic of Korea Department of Chemistry Utah Valley University800 W University PkwyOremUT 84058USA INISTst Co. LTD767Sinsu-roSuji-guYongin-si 16827Gyeonggi-doRepublic of Korea College of Pharmacy Yeungnam University280 Daehak RoadGyeonsanGyeongbuk 38541Republic of Korea

Background:Neuroinflammation and accumulation ofβ-amyloid(Aβ)play a significant role in the onset and progression of Alzheimer’s disease(AD).Our previous study demonstrated that signal transducer and activator of transcription-3(STAT3)plays a major role in neuroinflammation and ***:In the present study,we investigated the inhibitory effect of bee venom phospholipase A2(bvPLA2)on memory deficiency in Tg2576 mice,which demonstrate genetic characteristics of AD and the mechanism of its action at the cellular and animal *** in vivo study,we examined the effect of bvPLA2 on improving memory by conducting several behavioral tests with the administration of bvPLA2(1 mg/kg)to Tg2576 *** in vitro study,we examined the effect of bvPLA2 on amyloidogenesis and neuroinflammation by treating bvPLA2 on LPSactivated BV2 ***:We found that bvPLA2 alleviated memory impairment in Tg2576 mice,as demonstrated in the behavioral tests assessing *** the bvPLA2-treated group,Aβ,amyloid precursor protein(APP),and β-secretase 1(BACE1)levels and β-secretase activity were significantly *** of pro-inflammatory cytokines and inflammation-related proteins decreased in the brain of bvPLA2-treated group,whereas anti-inflammatory cytokines *** addition,bvPLA2 reduced STAT3 phosphorylation in the brains of the bvPLA2-treated *** the cellular level,bvPLA2 inhibits production of nitric oxide,pro-inflammatory cytokines,and inflammation-related proteins including ***,bvPLA2 inhibits the production of Aβin cultured BV-2 *** from the docking experiment,pull-down assay,and the luciferase assay show that bvPLA2 directly binds STAT3 and,thus,regulates gene expression ***,when the STAT3 inhibitor and bvPLA2 were administered together,the anti-amyloidogenic and anti-inflammatory effects were further enhanced than when they were administered ***:These results suggest that bvPLA2 could r

关键词： Bee venom phospholipase A2 Alzheimer’s disease Amyloidogenesis Neuroinflammation STAT3

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Acute kidney injury due to intravenous detergent poisoning:A case report

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World Journal of Clinical Cases 2022年第6期10卷 2036-2044页

作者： Sungbin Park hyun-Sik Ryu Jae-Kwang Lee Sung-Soo Park Sun-Jung Kwon Won-Min Hwang Sung-Ro yun Moon-Hyang Park Yohan Park Department of Internal Medicine Division of NephrologyKonyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Emergency Medicine Konyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Internal Medicine Division of Respiratory and Critical Care MedicineKonyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Pathology Konyang University HospitalCollege of MedicineDaejeon 35365South Korea

BACKGROUND Detergent poisoning mostly occurs through oral ingestion(>85%),ocular exposure(<15%),or dermal exposure(<8%).Reports of detergent poisoning through an intravenous injection are extremely *** addition,there are very few cases of renal toxicity directly caused by ***,we report a unique case of acute kidney injury caused by detergent poisoning through an accidental intravenous *** SUMMARY A 61-year-old man was intravenously injected with 20 mL of detergent by another patient in the same room of a local *** surfactant and calcium carbonate accounted for the largest proportion of the *** patient complained of vascular pain,chest discomfort,and nausea,and was transferred to our *** hospitalization,the patient’s serum creatinine level increased to 5.42 mg/dL,and his daily urine output decreased to approximately 300 *** biopsy findings noted that the glomeruli were relatively intact;however,diffuse acute tubular injury was *** edema was also noted,and the patient underwent a total of four hemodiafiltration ***,the patient’s urine output gradually increased whereas the serum creatinine level *** patient was discharged in a stable status without any *** Detergents appear to directly cause renal tubular injury by systemic *** treating a patient with detergent poisoning,physicians should be aware that the renal function may also *** addition,timely renal replacement therapy may help improve the patient’s prognosis.

关键词： Detergents Poisoning Intravenous injection Acute kidney injury Acute tubular injury Case report

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Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene

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Light(Science & Applications) 2021年第2期10卷 176-185页

作者： Seongju Ha Nam Hun Park Hyeonkyeong Kim Jiseon Shin Jungseok Choi Sungmin Park Ji-yun Moon Kwanbyung Chae Jeil Jung Jae-hyun Lee Youngdong Yoo Ji-Yong Park Kwang Jun Ahn Dong-Il Yeom Department of Energy Systems Research Ajou University206 Worldcup-roYeongtong-guSuwon 16499Republic of Korea Korea Research Institute of Standards and Science Daejeon 34113Republic of Korea Department of Physics University of Seoul163 SiripdaeroDongdaemun-guSeoul 02504Republic of Korea Department of Smart Cities University of Seoul163 SiripdaeroDongdaemun-guSeoul 02504Republic of Korea Department of Materials Science and Engineering Ajou University206 Worldcup-roYeongtong-guSuwon 16499Republic of Korea Department of Chemistry Ajou University206 Worldcup-roYeongtong-guSuwon 16499Republic of Korea Department of Physics Ajou University206 Worldcup-roYeongtong-guSuwon 16499Republic of Korea

Twisted bilayer graphene(tBLG)has received substantial attention in various research fields due to its unconventional physical properties originating from Moire *** electronic band structure in tBLG modified by interlayer interactions enables the emergence of low-energy van Hove singularities in the density of states,allowing the observation of intriguing features such as increased optical conductivity and photocurrent at visible or near-infrared ***,we show that the third-order optical nonlinearity can be considerably modified depending on the stacking angle in *** third-harmonic generation(THG)efficiency is found to significantly increase when the energy gap at the van Hove singularity matches the three-photon resonance of incident *** study on electrically tuneable optical nonlinearity reveals that the gate-controlled THG enhancement varies with the twist angle in tBLG,resulting in a THG enhanced up to 60 times compared to neutral monolayer *** results prove that the twist angle opens up a new way to control and increase the optical *** tBLG,,suggesting rotation-induced tuneable nonlinear optics in stacked two-dimensional material systems.

关键词： twist angle harmonic

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Thioredoxin Reductase Type C （NTRC） Orchestrates Enhanced Thermotolerance to Arabidopsis by Its Redox-Dependent Holdase Chaperone Function

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Molecular Plant 2013年第2期6卷 323-336页

作者： Ho Byoung Chae Jeong Chan Moon Mi Rim Shin Yong Hun Chi Young Jun Jung Sun Yong Lee Ganesh M. Nawkar hyun Suk Jung Jae Kyung hyun Woe Yeon Kim Chang Ho Kang Dae-Jin yun Kyun Oh Lee Sang Yeol Lee Division of Applied Life Science (BK21 Program) and PMBBRC Gyeongsang National University 501 Jinju-daero Jinju 660-701 Korea Division of Electron Microscopic Research Korea Basic Science Institute 113 Gwahangno Yuse0ng-guDaejeon 303-333 Korea

Genevestigator analysis has indicated heat shock induction of transcripts for NADPH-thioredoxin reduc-tase, type C （NTRC） in the light. Here we show overexpression of NTRC in Arabidopsis （NTRC°E） resulting in enhanced tolerance to heat shock, whereas NTRC knockout mutant plants （ntrcl） exhibit a temperature sensitive phenotype. To investigate the underlying mechanism of this phenotype, we analyzed the protein＇s biochemical properties and protein structure. NTRC assembles into homopolymeric structures of varying complexity with functions as a disulfide reductase, a foldase chaperone, and as a holdase chaperone. The multiple functions of NTRC are closely correlated with protein structure.. Complexes of higher molecular weight （HMW） showed stronger activity as a holdase chaperone, while low molecular weight （LMW） species exhibited weaker holdase chaperone activity but stronger disulfide reductase and fol-dase chaperone activities. Heat shock converted LMW proteins into HMW complexes. Mutations of the two active site Cys residues of NTRC into Ser （C217/454S-NTRC） led to a complete inactivation of its disulfide reductase and foldase chaperone functions, but conferred only a slight decrease in its holdase chaperone function. The overexpression of the mutated C217/454S-NTRC provided Arabidopsis with a similar degree of thermotolerance compared with that of NTRC°E plants. However, after prolonged incubation under heat shock, NTRC°E plants tolerated the stress to a higher degree than C217/454S-NTRC°E plants. The results suggest that the heat shock-mediated holdase chaperone function of NTRC is responsible for the increased thermotolerance of Arabidopsis and the activity is significantly supported by NADPH.

关键词： NADPH-thioredoxin reductase type C (NTRC) oligomeric complexes disulfide reductase foldase and holdasechaperone functions redox thermotolerance.

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Moisture sorption,thermal,and caking characteristics of L-lysine-carbonate granules

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Food Bioscience 2023年第3期53卷 2983-2990页

作者： Suyeon An Sungahm Ahn Andres Letona Ji hyun Shin Seung Hoon Kang Jae yun Jeong Sang Min Park Jun Woo Kim Daeung Yu Hee Chung Donghwa Chung Food Technology Major Graduate School of International Agricultural TechnologySeoul National UniversityPyeongchang25354Republic of Korea CJ BIO Research Institute CJ CheilJedangSuwon16495Republic of Korea Institute of Food Industrialization Institutes of Green Bio Science and TechnologySeoul National UniversityPyeongchang25354Republic of Korea Department of Food and Nutrition Changwon National UniversityChangwon51140Republic of Korea Center for Food and Bioconvergence Seoul National UniversitySeoul08826Republic of Korea

L-Lysine,an essential amino acid,is often produced in the granular form of L-lysine-monohydrochloride(L-lysine-HCl).To address chemical waste and processing cost concerns associated with the production of L-lysine-HCl granules,an alternative process has been recently developed for the production of L-lysine as granules of L-lysine-carbonate(L-lysine-CO_(3)).In the present study,the moisture sorption,thermal,and caking properties of L-lysine-CO_(3) granules were investigated in comparison with commercial L-lysine-HCl granules.L-Lysine-CO_(3) granules showed a popcorn-like surface structure(59.0%crystallinity),while L-lysine-HCl granules exhibited an angular crystalline structure(72.9%crystallinity).L-Lysine-CO_(3) granules had a less compact structure than L-lysine-HCl granules and showed excellent initial flowability comparable to L-lysine-HCl granules.L-Lysine-CO_(3) granules were more hygroscopic than L-lysine-HCl granules,probably due to their lower crystallinity and less compact structure.L-Lysine-CO_(3) granules began to undergo thermal decomposition at 192℃,probably due to CO_(2) release,followed by melting at 234℃ and further decomposition,while L-lysine-HCl granules underwent melting at 251℃,and then began to undergo thermal decomposition at 260℃.No glass transition was observed for either lysine-CO_(3) or L-lysine-HCl *** test under pressurized and accelerated conditions showed that L-lysine-CO_(3) granules were more prone to caking and formed harder agglomerates than L-lysine-HCl *** results showed that L-lysine-CO_(3) granules were more hygroscopic,less thermally stable,and more prone to caking,compared to commercial L-lysine-HCl ***,these properties of L-lysine-CO_(3) granules were at acceptable levels for commercial use,thus L-lysine-CO_(3) granules have high potential for commercial development.

关键词： L-Lysine-carbonate granules Moisture sorption Thermal transition Thermal stability Caking

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Pancreatic pseudocyst filled with semisolid lipids mimicking solid mass on endoscopic ultrasound

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World Journal of Gastroenterology 2010年第8期16卷 1034-1038页

作者： Sang-Woo Cha Sae Hee Kim Hyang Ie Lee yun Jung Lee Hyeon Woong Yang Sung Hee Jung Anna Kim Min Koo Lee hyun Young Han Dong Wook Kang Division of Gastroenterology Department of Internal Medicine Eulji University College of Medicine Eulji University Hospital Division of Gastroenterology Department of Surgery Eulji University College of Medicine Eulji University Hospital Division of Gastroenterology Department of Radiology Eulji University College of Medicine Eulji University Hospital Division of Gastroenterology Department of Pathology Eulji University College of Medicine Eulji University Hospital

Pancreatic pseudocysts,which account for 70%-90% of pancreatic cystic lesions,characteristically are non-epithelially lined cystic cavities that are contiguous with the pancreas. Pancreatic pseudocysts can be caused by acute,chronic or traumatic pancreatitis and should be differentiated from other pancreatic diseases with cystic appearances,especially cystic neoplasms. We report a unique case of a pancreatic pseudocyst filled with semisolid lipids,which appeared by endoscopic ultrasound as a solid mass,and was therefore resected.

关键词： Pancreatic pseudocyst Lipids Endosonog-raphy

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Dhx33 promotes B-cell growth and proliferation by controlling activation-induced rRNA upregulation

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Cellular & Molecular Immunology 2023年第3期20卷 277-291页

作者： Xiaoyu He Jiayi Zhao Abidan Adilijiang Peicheng Hong Pengda Chen Xinyong Lin Jun Xie Ying Du yun Liu Lianghua Lin hyun Yong Jin Yazhen Hong Wen-Hsien Liu Changchun Xiao state Key Laboratory of Cellular Stress Biology School of Life SciencesFaculty of Medicine and Life SciencesXiamen UniversityXiamenFujianChina Department of Immunology and Microbiology The Scripps Research InstituteLa JollaCA 92037USA Genentech Inc. South San FranciscoCA 94080USA Sanof Institute for Biomedical Research Suzhoujiangsu 215123China

Upon recognition of foreign antigens,naïve B cells undergo rapid activation,growth,and *** B-cell growth and proliferation are coupled with activation remains poorly *** CRISPR/Cas9-mediated functional analysis and mouse genetics approaches,we found that Dhx33,an activation-induced RNA helicase,plays a critical role in coupling B-cell activation with growth and *** mice with B-cell-specific deletion of Dhx33 exhibited impaired B-cell development,germinal center reactions,plasma cell differentiation,and antibody ***33-deficient B cells appeared normal in the steady state and early stage of activation but were retarded in growth and ***,Dhx33 played an indispensable role in activation-induced upregulation of ribosomal DNA(rDNA)*** the absence of Dhx33,activated B cells were compromised in their ability to ramp up 47S ribosomal RNA(rRNA)production and ribosome biogenesis,resulting in nucleolar stress,p53 accumulation,and cellular *** findings demonstrate an essential role for Dhx33 in coupling B-cell activation with growth and proliferation and suggest that Dhx33 inhibition is a potential therapy for lymphoma and antibody-mediated autoimmune diseases.

关键词： RNA helicases B cell activation Germinal center reaction

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吉林省延边地区蜱类分布及其携带发热伴血小板减少综合征病毒调查

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寄生虫与医学昆虫学报 2017年第2期24卷 132-140页

作者：李基旭 seok-Min yun Seong-Yoon KIM 朴文吴仲镐廉哲浩金光星 E-hyun SHIN Shin-Hyeong CHO 吉林省延边州疾病预防控制中心吉林延吉133001 韩国疾病预防控制中心国立保健研究院韩国清州363951 珲春市疾病预防控制中心吉林珲春133300 图们市疾病预防控制中心吉林图们133100 汪清县疾病预防控制中心吉林汪清133200 安图县疾病预防控制中心吉林安图133600

本文旨在探讨吉林省延边地区自然环境和动物体表蜱类分布及其消长规律,掌握其携带发热伴血小板减少综合征布尼亚病毒(Severe fever with thrombocytopenia syndrome virus,SFTSV)状况及传播病毒能力。2016年4~9月份按月采集延边州所辖8... 详细信息

本文旨在探讨吉林省延边地区自然环境和动物体表蜱类分布及其消长规律,掌握其携带发热伴血小板减少综合征布尼亚病毒(Severe fever with thrombocytopenia syndrome virus,SFTSV)状况及传播病毒能力。2016年4~9月份按月采集延边州所辖8个县(市)自然环境中生长的蜱虫和放牧动物体表蜱虫进行形态学分类,对其进行构成分析。对其中部分蜱虫分组进行SFTSV核酸检测。SFTSV核酸检测方法采用了Real time RT-PCR和RT-PCR相结合的方法。结果共采集蜱虫3 446只,其中森林革蜱763只,嗜群血蜱222只,日本血蜱639只,长角血蜱515只,全沟硬蜱1 014只,其他血蜱293只;全沟硬蜱(29.43%)和森林革蜱(22.14%)为本地优势种。长角血蜱在图们市(70.88%)和珲春市(40.59%)分布较多。对部分蜱虫(1605只)SFTSV Real time RT-PCR检测结果总最低感染率为1.81%,分种最低感染率分别为嗜群血蜱8.65%、日本血蜱4.53%、长角血蜱1.59%。序列分析结果表明,本文检测到的SFTSV病毒与我国其他省份从患者身上分离到的大部分SFTSV有高度一致性(99%)且与2012年从浙江患者血清中分离到的SFTSV、2013年韩国国家疾病预防控制中心从人身上采集的长角血蜱中分离到的SFTSV处于同一分枝,把该病毒命名为YBHC-TICK1-2016/CHINA。

关键词：发热伴血小板减少综合征布尼亚病毒蜱流行病学媒介

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High-throughput discovery of plastid genes causing albino phenotypes in ornamental chimeric plants

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Horticulture Research 2023年第1期10卷 249-259页

作者： hyun-Seung Park Jae-Hyeon Jeon Woohyeon Cho Yeonjeong Lee Jee Young Park Jiseok Kim Young Sang Park hyun Jo Koo Jung Hwa Kang Taek Joo Lee Sang Hoon Kim Jin-Baek Kim Hae-yun Kwon Suk-Hwan Kim Nam-Chon Paek Geupil Jang Jeong-Yong Suh Tae-Jin Yang Department of Agriculture Forestry and BioresourcesResearch Institute of Agriculture and Life Sciencesand Plant Genomics and Breeding InstituteCollege of Agriculture and Life SciencesSeoul National UniversitySeoul08826Republic of Korea Department of Integrative Biological Sciences and Industry Sejong UniversitySeoul 05006Korea Hantaek Botanical Garden YonginGyeonggi-do17183Republic of Korea Radiation Breeding Research Team Advanced Radiation Technology InstituteKorea Atomic Energy Research InstituteJeongeup 56212Korea Special Forest Resources Division National Institute of Forest ScienceSuwon 16631Korea School of Biological Sciences and Technology Chonnam National UniversityGwangjuSouth Korea Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences Seoul National UniversitySeoul 08826Korea

Chimeric plants composed of green and albino tissues have great ornamental *** unveil the functional genes responsible for albino phenotypes in chimeric plants,we inspected the complete plastid genomes(plastomes)in green and albino leaf tissues from 23 ornamental chimeric plants belonging to 20 species,including monocots,dicots,and *** nine chimeric plants,plastomes were identical between green and albino ***,another 14 chimeric plants were heteroplasmic,showing a mutation between green and albino *** identified 14 different point mutations in eight functional plastid genes related to plastid-encoded RNA polymerase(rpo)or photosystems which caused albinism in the chimeric *** them,12 were deleterious mutations in the target genes,in which early termination appeared due to small deletion-mediated frameshift or single nucleotide *** was single nucleotide substitution in an intron of the ycf3 and the other was a missense mutation in coding region of the rpoC2 *** inspected chlorophyll structure,protein functional model of the rpoC2,and expression levels of the related genes in green and albino tissues of Reynoutria japonica.A single amino acid change,histidine-to-proline substitution,in the rpoC2 protein may destabilize the peripheral helix of plastid-encoded RNA polymerase,impairing the biosynthesis of the photosynthesis system in the albino tissue of *** chimera plant.

关键词： plast substitution ornamental

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Thick free-standing electrode based on carbon-carbon nitride microspheres with large mesopores for high-energy-density lithium-sulfur batteries

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Carbon Energy 2021年第3期3卷 410-423页

作者： Hui-Ju Kang Tae-Gyu Lee Heejin Kim Jae-Woo Park hyun Jin Hwang Hyeonseok Hwang Kwang-Suk Jang Hae Jin Kim yun Suk Huh Won Bin Im Young-Si Jun Department of Advanced Chemicals&Engineering Chonnam National UniversityBuk-guGwangjuRepublic of Korea Division of Analytical Science Korea Basic Science Institute(KBSI)Yuseong-guDaejeonRepublic of Korea School of Chemical Engineering Chonnam National UniversityBuk-guGwangjuRepublic of Korea Department of Applied Chemistry Hanyang UniversityAnsanGyeonggi-doRepublic of Korea Department of Biological Engineering Inha UniversityNam-guIncheonRepublic of Korea Division of Materials Science and Engineering Hanyang UniversitySeongdong-guSeoulRepublic of Korea

The development of sulfur cathodes with high areal capacity and high energy density is crucial for the practical application of lithium-sulfur batteries(LSBs).LSBs can be built by employing(ultra)high-loading sulfur cathodes,which have rarely been realized due to massive passivation and ***,microspheres of a carbon-carbon nitride composite(C@CN)with large mesopores are fabricated via molecular cooperative *** the C@CN-based electrodes,the effects of the large mesopores and N-functional groups on the electrochemical behavior of sulfur in LSB cells are thoroughly investigated under ultrahigh sulfur-loading conditions(>15 mgS cm^(-2)).Furthermore,for high-energy-density LSBs,the C@CN powders are pelletized into a thick free-standing electrode(thickness:500^m;diameter:11 mm)via a simple briquette process;here,the total amount of energy stored by the LSB cells is 39 mWh,corresponding to a volumetric energy density of 440 Wh L-1 with an areal capacity of 24.9 and 17.5 mAh cm^(-2) at 0.47 and 4.7 mA cm^(-2),respectively(at 24mgS cm^(-2)).These results have significantly surpassed most recent records due to the synergy among the large mesopores,(poly)sulfide-philic surfaces,and thick *** developed strategy with its potential for scale-up successfully fills the gap between laboratory-scale cells and practical cells without sacrificing the high areal capacity and high energy density,providing a solid foundation for the development of practical LSBs.

关键词： briquette process carbon nitride free-standing electrode high energy density lithium-sulfur batteries mesopores

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