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Evaluation of markers of outcome in realworld treatment of diabetic macular edema

Eye and Vision 2018年第1期5卷 240-249页

作者： António Campos Elisa J Campos Anália do Carmo Francisco Caramelo joão Martins joão P Sousa António Francisco Ambrósio Rufino silva Coimbra Institute for Clinical and Biomedical Research(iCBR) Faculty of MedicineUniversity of CoimbraAzinhaga de Santa CombaCelas3000-548 CoimbraPortugal CNC.iCBR Consortium University of CoimbraCoimbraPortugal Department of ophthalmology Leiria HospitalLeiriaPortugal Clinical Pathology Department Centro Hospitalar Universitário de Coimbra(CHUC)CoimbraPortugal Laboratory of Biostatistics and Medical Informatics Faculty of MedicineUniversity of CoimbraCoimbraPortugal Medical Sciences Department Faculty of Health SciencesUniversity of Beira InteriorCovilhãPortugal Association for Innovation and Biomedical Research on Light and Image(AIBILI) CoimbraPortugal Department of ophthalmology Centro Hospitalar Universitário de Coimbra(CHUC)CoimbraPortugal

objective:To evaluate short-term markers of outcome in diabetic macular edema(DME).Methods:Prospective interventional case series included 122 eyes of 122 patients with recently diagnosed *** were treated with a 3-monthly loading dose of ranibizumab or aflibercept and pro re nata *** enhanced deep imaging SD-oCT high resolution scans were used to measure subfoveal choroidal thickness(SFCT)and central retinal thickness(CRT).Anatomic(10%CRT decrease)and functional responses(best corrected visual acuity,BCVA gain≥5 letters)were assessed at 3 months and 6 months using univariate and multivariate *** tested were gender,duration of diabetes,HbA1c,hypertension,CRT,SFCT,BCVA,ellipsoid zone(EZ)status,subfoveal neuroretinal detachment(SND),anti-VEGF used and laser naivety.A logistic regression model was applied to find independent markers ***:BCVA increased,CRT and SFCT decreased at 3 months and 6 *** metabolic control(p=0.003),intact baseline EZ(p=0.030),EZ re-grading at 3 M(pociated with better functional *** multivariate linear regression model showed that baseline SND and CRT are predictors of anatomic response,while lower baseline BCVA and intact EZ are predictors of functional ***:The presence of SND predicts anatomic response only,while an intact EZ is critical to achieve a good functional outcome in DME.

关键词： Diabetic macular edema outcome factors Spectral-domain optical coherence tomography Antivascular endothelial growth factor Laser

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Extramedullary plasmocytoma associated with a massive deposit of amyloid in the duodenum

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World journal of Gastroenterology 2009年第28期15卷 3565-3568页

作者： Fabiana Pirani Carneiro Maria de Nazareth Machado Sobreira Lívia Bravo Maia Alesso Cervantes Sartorelli luiz Eduardo de Almeida Prado Franceschi Mauro Brito Brando Bárbara Wosnjuk Calaca Fernando silva Lustosa joo Vieira Lopes Department of Pathology University Hospital of Brasília Department of Radiology University Hospital of Brasília Department of Hematology University Hospital of Brasília Department of Surgery University Hospital of Brasília

We report a rare case of extramedullary plasmocytoma associated with a massive deposit of amyloid in the duodenum. A 72-year-old Japanese man was admitted to our hospital presenting with a 3-mo history of epigastric pain, vomiting and weight loss. on computed tomography （CT） a wall thickening of the fourth part of the duodenum was observed. Multiple biopsies obtained from the lesion showed infiltration of plasma cells and lymphocytes, but they were not conclusive. The patient underwent resection of the lesion and, on histopathological examination, the lesion consisted of a dense and diffuse infiltrate of plasma cells and a few admixed lymphocytes with reactive follicles extending to the muscular propria. An extensive deposition of amyloid was also observed. Immunohistochemical stains revealed that a few plasmacytoid cells showed λ light chain staining, though most were κ： light chain positive. These cells also were positive for CD138 and CD56 but negative for CD20 and CD79. The findings were consistent with extramedullary plasmocytoma associated with a massive deposit of amyloid in duodenum. A subsequent workup for multiple myeloma was completely negative. The patient showed no signs of local recurrence or dissemination of the disease after 12 mo follow-up. Because of the association of plasmocytoma and amyloidosis, the patient must be followed up because of the possible systemic involvement of the neoplasm and amyloidosis in future.

关键词： Extramedullary plasmocytoma Amyloidosis Duodenum Plasma cell neoplasms Immunohistochemistry

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Antiglycation and antioxidant activities of the crude extract and saponin fraction of Tribulus terrestris before and after microcapsule release

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journal of Integrative Medicine 2022年第2期20卷 153-162页

作者： Célia Cristina Malaguti Figueiredo Amanda da Costa Gomes Filipe oliveira Granero joao luiz Bronzel Junior Luciana Pereira silva Valdecir Farias Ximenes Regildo Márcio Goncalves da silva Institute of Chemistry São Paulo State UniversityAraraquaraSão Paulo 14800-060Brazil Educational Foundation of the City of Assis AssisSão Paulo 19807-130Brazil Department of Chemistry School of SciencesSão Paulo State UniversityBauruSão Paulo 17033-360Brazil Department of Biotechnology School of SciencesHumanities and LanguagesSão Paulo State UniversityAssisSão Paulo 19806-900Brazil

objective:The present study investigated antiglycation and antioxidant activities of crude dry extract and saponin fraction of Tribulus *** also developed a method of microencapsulation and evaluated antiglycation and antioxidant activities of crude dry extract and saponin fraction before and after microcapsule ***:Antiglycation activity was determined by relative electrophoretic mobility(REM),free amino groups and inhibition of advanced glycation end-product(AGE)*** activity was determined by 2,2-diphenyl-1-picrylhydrazyl(DPPH),ferric ion-reducing antioxidant power(FRAP),nitric oxide(No)and thiobarbituric acid reactive species(TBARS)*** were prepared using maltodextrin as wall material and freeze-drying as encapsulation *** characterization of microcapsules was evaluated by scanning electron microscopy,and encapsulation efficiency and microcapsule release were determined by total saponins *** and antioxidant assays were performed using crude dry extract and saponin fraction of *** before and after ***:Saponin fraction showed an increase of 32.8%total ***-performance liquid chromatography-mass spectrometry analysis showed the presence of saponins in the obtained *** evaluation by REM demonstrated that samples before and after release presented antiglycation activity similar to bovine serum albumin treated with ***,samples inhibited AGE formation,highlighting treatment with saponin fraction after release(89.89%).Antioxidant tests demonstrated antioxidant activity of the *** dry extract before encapsulation presented the highest activities in DPPH(92.00%)and TBARS(32.49%)*** fraction before encapsulation in FRAP test(499μmol Trolox equivalent per gram of dry sample)and No test(15.13μmol nitrite formed per gram of extract)presented the highest ***:This study presen

关键词： Glycation Microencapsulation oxidative stress Saponins Tribulus terrestris

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Mechanical behavior of iron ore tailings under standard compression and extension triaxial stress paths

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journal of Rock Mechanics and Geotechnical Engineering 2023年第7期15卷 1883-1894页

作者： Alexia Cindy Wagner joão Paulo de Sousa silva joão Vítor de Azambuja Carvalho Ana Luisa Cezar Rissoli Pedro Pazzoto Cacciari Helder Mansur Chaves Hugo Carlos Scheuermann Filho Nilo Cesar Consoli Universidade Federal do Rio Grande do Sul Porto Alegre90035-190Brazil Mineral Development Centre Vale S.A.Santa Luzia33040-900Brazil Department of Civil Geological and Mining EngineeringPolytechnique MontrealMontrealH3C 3A7Canada

The disposal of mining tailings has increasingly focused on the use of dry *** structures offer more security since they use filtered and compacted *** of the construction method and the heights achieved,the material that compounds the structure can be subjected to different stress paths along the failure *** theoretical framework considered in the design of these structures generally is the critical state soil mechanics(CSSM).However,the data in the literature concerning the uniqueness of critical state line(CSL)is still controversial as the soil is subjected to different stress *** respect to tailings,this question is even more *** paper studies two tailings with different gradings due to the beneficial processes over extension and compression paths.A series of drained and undrained triaxial tests was conducted over a range of initial densities and stress *** the q-p'plane,different critical stress ratio(M)values were obtained for compression and extension stress ***,the critical state friction angle is very similar with a slightly higher critical state friction angle for extension *** stress path dependent CSLs were obtained in the n-lnp0 plane with the extension tests below the CSL defined in *** the fines content,the studied tailings presented very similar M and critical state friction angle ***,the fines content af-fects the volumetric behavior of the studied tailings and the CSLs on the n-lnp0 plane shift downwards with the increasing fines content for compression and extension *** relation to dilatancy analysis,the fines content did not present an evident influence on the dilatancy of the ***,different values of mean stress ratio N were obtained between compression and extension tests and can corroborate the existence of non-unique CSLs for these materials.

关键词： Iron ore tailings(IoTs) Dry stacking Critical state soil mechanics Extension tests Stress path

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Epigenetic regulation of TP53 is involved in prostate cancer radioresistance and DNA damage response signaling

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Signal Transduction and Targeted Therapy 2023年第11期8卷 5404-5416页

作者： Catarina Macedo-silva Vera Miranda-Gonçalves Nuno Tiago Tavares Daniela Barros-silva joana Lencart joão Lobo Ângelo oliveira Margareta PCorreia Lucia Altucci Carmen Jerónimo Cancer Biology&Epigenetics Group Research Center of IPO Porto(CI-IPOP)/CI-IPOP@RISE(Health Research Network)Portuguese Oncology Institute of Porto(IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca(Porto.CCC)R.Dr.António Bernardino de Almeida4200-072PortoPortugal Department of Precision Medicine University of Campania“Luigi Vanvitelli”80138NaplesItaly Department of Pathology and Molecular Immunology ICBAS-School of Medicine&Biomedical SciencesUniversity of PortoR.Jorge de Viterbo Ferreira 2284050-313PortoPortugal Medical Physics Radiobiology and Radiation Protection Group-Research Center of IPO Porto(CI-IPOP)/CI-IPOP@RISE(Health Research Network)Portuguese Oncology Institute of Porto(IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca(Porto.CCC)R.Dr.António Bernardino de Almeida4200-072PortoPortugal Department of Medical Physics Portuguese Oncology Institute of Porto4200-072PortoPortugal Department of Pathology Portuguese Oncology Institute of PortoPortoPortugal Department of Radiation oncology Portuguese Oncology Institute of PortoPortoPortugal BIoGEM Molecular Biology and Genetics Research Institute83100AvellinoItaly IEoS Institute of Endocrinology and Oncology80100NaplesItaly

External beam radiotherapy(RT)is a leading first-line therapy for prostate cancer(PCa),and,in recent years,significant advances have been ***,RT resistance can arise and result in long-term recurrence or disease progression in the worst-case ***,making crucial the discovery of new targets for PCa ***,we generated a radioresistant PCa cell line,and found p53 to be highly expressed in radioresistant PCa cells,as well as in PCa patients with recurrent/disease progression submitted to *** dissection revealed that RT could promote p53 expression via epigenetic ***,a decrease of H3K27me3 occupancy at TP53 gene promoter,due to increased KDM6B activity,was observed in radioresistant PCa ***,p53 is essential for efficient DNA damage signaling response and cell recovery upon stress induction by prolonged fractionated ***,KDM6B inhibition by GSK-J4 significantly decreased p53 expression,consequently attenuating the radioresistant phenotype of PCa cells and hampering in vivo 3D tumor ***,this work contributes to improve the understanding of p53 as a mediator of signaling transduction in DNA damage repair,as well as the impact of epigenetic targeting for PCa radiosensitization.

关键词： TP53 damage cancer

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Identification of victims of the collapse of a mine tailing dam in Brumadinho

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Forensic Sciences Research 2022年第4期7卷 580-589页

作者： Ricardo moreira Araújo Yara Vieira Lemos Erlon Dias do Nascimento Anna Helena silva Paraizo Alberto Julius Alves Wainstein Ana Paula Drummond-Lage Faculty of Medical Sciences of Minas Gerais Belo HorizonteBrazil Instituto Médico Legal AndréRoquette Belo HorizonteBrazil Corpo de Bombeiros Militar de Minas Gerais Juiz de ForaBrazil

The collapse of the B1 Dam of VALESAmining company in Brumadinho,Minas Gerais,Brazil was the largest humanitarian disaster and occupational accident in the country’s history,and it posed challenges regarding the management and identification of multiple *** evaluated the impact of the iron ore tailings on the victims’*** examined the scientific identification of the victims and the dynamics of the disaster over the 1st year after it *** also determined the socio-demographic profiles of the *** this retrospective,cross-sectional study,we investigated the expert reports of the victims’biological remains from 25 January 2019 to 25 January *** analysed the socio-demographic data,identification methods,identification status,identification time,and necroscopic *** the study period,259 of 270 victims were identified,and 603 biological materials were analysed;among them,86.2%were body parts and 13.8%were whole *** the total cases registered that year,476(78.9%)were submitted during the first 10 weeks after the *** ridge analysis accounted for 67.9%of primary identifications and DNAanalysis did so for 91.6%of re-identification *** dismemberment was 3.4 times greater among mine workers than among community *** males accounted for the greatest number of victims(Polytraumatic injury was the prevalent single cause of *** examination revealed the occurrence of asphyxia in 7%of *** higher number of fatalities and greater dismemberment among employees than with community residents underlines the occupational dangers in the mining industry and clarifies the dynamics of the *** the initial weeks after the dam collapsed,friction ridge analysis was the most appropriate method for ***,DNAanalysis became the most-used technique for identification and re-identification owing to the great volume of body parts and decomposed biological ***

关键词： Disasters victim identification tailings mining legal medicine developing countries man-made disasters traumatic amputation

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Neoarchean atmospheric chemistry and the preservation of S-MIF in sediments from the São Francisco Craton

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Geoscience Frontiers 2022年第5期13卷 207-226页

作者： Alice Bosco-Santos William Patrick Gilhooly Ⅲ Paola de Melo-silva Fotios Fouskas Amaury Bouyon joão Gabriel Motta Mauricio Rigoni Baldim Wendell Fabricio-silva Pascal Philippot Elson Paiva oliveira Department of Geology and Natural Resources University of CampinasCampinasSP 13083855Brazil Department of Earth Sciences Indiana University-Purdue University IndianapolisIndianapolisINUSA Institut de Physique du Globe de Paris Universitéde ParisCNRS-UMR 715475005 Paris Cedex 05France Vizlab-X-Reality and GeoInformatics Lab UNISINOSSão LeopoldoRS 93022-750Brazil Geosciences Department Federal University of Mato GrossoCuiabáMTBrazil Geosciences Institute University of BrasiliaBrasíliaDistrito Federal 70910-900Brazil Institute of Geography and Geology University of Würzburg97074 WürzburgGermany Géosciences Montpellier Universitéde MontpellierCNRSUniversitédes AntillesMontpellierFrance Institute of Astronomy Geophysicsand Atmospheric SciencesUniversity of São PauloRua do Matão 1226São PauloBrazil

Sulfur mass-independent fractionation(S-MIF)preserved in Archean sedimentary pyrite is interpreted to reflect atmospheric *** ranges in Δ^(33)S that expanded into larger fractionations leading up to the Great oxygenation Event(GoE;2.45–2.2 Ga)are disproportionately represented by sequences from the Kaapvaal and Pilbara *** patterns of S-MIF attenuation and enhancement may differ from the timing and magnitude of minor sulfur isotope fractionations reported from other cratons,thus obscuring local for global sulfur cycling *** expanding the Δ^(33)S record to include the relatively underrepresented São Francisco Craton in Brazil,we suggest that marine biogeochemistry affected S-MIF preservation prior to the *** an early Neoarchean sequence(2763–2730 Ma)from the Rio das Velhas Greenstone Belt,we propose that low δ^(13)Corg(o-0.7‰)in banded iron formation reflect the marine diagenetic process of anaerobic methane *** overlying black shale(ToC up to 7.8%)with higher δ^(13)Corg(-33.4‰to-19.2‰)and expanded Δ^(33)S(2.3‰±0.8‰),recorded oxidative sulfur cycling that resulted in enhance preservation of S-MIF input from atmospheric sources of elemental *** sequence culminates in a metasandstone,where concomitant changes to more uniform δCorg(-30‰to--25‰),potentially associated with the RuBisCo I enzyme,and near-zero Δ^(33)S(-0.04‰to 0.38‰)is mainly interpreted as evidence for local oxygen *** placed in the context of other sequences worldwide,the Rio das Velhas helps differentiate the influences of global atmospheric chemistry and local marine diagenesis in Archean biogeochemical *** data suggest that prokaryotic sulfur,iron,and methane cycles might have an underestimated role in pre-GoE sulfur minor isotope records.

关键词： S-MIF preservation Archean atmospheric chemistry GoE São Francisco Craton

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Cloning and characterization of gene-resistant analogs(RGAs)involved in rust(Puccinia psidii) resistance in Eucalyptus grandis

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journal of Forestry Research 2015年第3期26卷 711-718页

作者： Marcelo luiz Laia Acelino Couto Alfenas Sergio Hermínio Brommonschenkel Shinitiro oda Eduardo josé de Melo Inaê Mariêde Araú jo silva Janaína Fernandes Gonalves Ariadne Marques Departamento de Engenharia Florestal Universidade Federal dos Vales do Jequitinhonha e Mucuri DiamantinaMinas Gerais 39100-000 Brazil Departamento de Fitopatologia Universidade Federal de Viosa Viosa Minas Gerais 36570-900 Brazil Suzano Bahia Sul Celulose S/A Suzano So Paulo Brazil

Disease-resistant genes play an important role in defending against a variety of pathogens and insect pests in plants. Most of the disease-resistant genes encode pro- teins with conserved leucine rich repeat and nucleotide binding site domains. In this study, we cloned and char- acterized gene-resistant analogs （RGAs） from Eucalyptus grandis using degenerate PCR, with primers specifically targeting these two domains. The amplified fragments were cloned into the pGEM-T vector and transformed into Escherichia coli. Among the 90 clones obtained, 13 were sequenced and compared with each other and with previ- ously identified gene-resistant diseases. A BLASTX search in GenBank revealed high similarities among the con- served domains of these cloned genes with RGA genes. Some clones, however, showed no significant similarity with DNA sequences in GenBank. Southern blotting ana- lysis identified several polymorphic RFLP loci between distinct genotypes. However, none of them co-segregated with the Puccinia psidii Winter resistance gene 1 （Ppr1） in a population study.

关键词： Cloning Conserved domains RGAs Rust Eucalyptus

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Maternal low protein diet induces persistent expression changes in metabolic genes in male rats

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World journal of Diabetes 2020年第5期11卷 182-192页

作者： Allan de oliveira Lira joséluiz de Brito Alves Mariana Pinheiro Fernandes Diogo Vasconcelos David Filipe Santana joão Henrique da Costa-silva Béatrice Morio Carol Góis Leandro Luciano Pirola Department of Nutrition Federal University of PernambucoVitoria de Santo AntãoPernambuco 55608680Brazil Department of Nutrition Federal University of ParaíbaJoao Pessoa 74556060Brazil Henrique da Costa-silva Luciano PirolaDepartment of Physical Education and Sport SciencesFederal University of PernambucoVitoria de Santo AntãoPernambuco 55608680Brazil Carmen(Cardiology Metabolism and Nutrition)LaboratoryINSERM U1060Lyon-1 UniversitySouth Lyon Medical FacultyPierre Benite 69310France

BACKGRoUND Perinatal exposure to a poor nutritional environment predisposes the progeny to the development of metabolic disease at the adult age,both in experimental models and *** adaptive responses to maternal protein restriction have been reported in metabolic ***,the expression of glucose/fatty acid metabolism-related genes in adipose tissue and liver needs to be *** To evaluate the metabolic impact of perinatal malnutrition,we determined malnutrition-associated gene expression alterations in liver and adipose *** In the present study,we evaluated the alterations in gene expression of glycolytic/Krebs cycle genes(Pyruvate dehydrogenase kinase 4 and citrate synthase),adipogenic and lipolytic genes and leptin in the adipose tissue of offspring rats at 30 d and 90 d of age exposed to maternal isocaloric low protein(LP)diet throughout gestation and *** also evaluated,in the livers of the same animals,the same set of genes as well as the gene expression of the transcription factors peroxisome proliferator-activated receptor gamma coactivator 1,forkhead box protein o1 and hepatocyte nuclear factor 4 and of gluconeogenic *** In the adipose tissue,we observed a transitory(i.e.,at 30 d)downregulation of pyruvate dehydrogenase kinase 4,citrate synthase and carnitine palmitoyl transferase 1b gene *** transcriptional changes did not persist in adult LP rats(90 d),but we observed a tendency towards a decreased gene expression of leptin(P=0.052).The liver featured some gene expression alterations comparable to the adipose tissue,such as pyruvate dehydrogenase kinase 4 downregulation at 30 d and displayed other tissue-specific changes,including citrate synthase and fatty acid synthase upregulation,but pyruvate kinase downregulation at 30 d in the LP group and carnitine palmitoyl transferase 1b downregulation at 90 *** gene alterations,together with previously described changes in gene expression in

关键词： Metabolic adaptation Phenotype plasticity Liver Adipose tissue Metabolism Maternal protein undernutrition Rats

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Dental Post Based on Epoxy Resin/Zirconium Phosphate Composite Aiming Prosthetic Dentistry

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Materials Sciences and Applications 2024年第11期15卷 504-527页

作者： Bruna Maria De Carvalho Martins Enzo Erbisti Garcia Gerson Alberto Valencia Albitres Daniela De França Da silva Freitas Eduardo moreira Da silva joão luiz Portella Duarte Luis Claudio Mendes Institute of Macromolecules Professor Eloisa Mano Federal University of Rio de Janeiro Rio de Janeiro Brazil School of Dentistry Federal Fluminense University Niterói Brazil Faculty of odontology State University of Rio de Janeiro Rio de Janeiro Brazil

The aim of this research was to develop an intrarradicular dental post based on epoxy resin/nano zirconium phosphate composite with potential appli-cation in prosthetic dentistry. Zirconium phosphate (ZrP) nanoparticle was synthesized by a reaction between phosphoric acid (H3Po4) and zirconium (IV) oxide chloride 8-hydrate (ZroCl2·8H2o) and applied as filler. Commer-cial epoxy resin and hardener were used as polymer matrix. The composites were prepared at different proportions of epoxy resin/hardener, filler amount, reaction time and temperature. Infrared revealed that degree of conversion decreased with amount of ZrP. Insoluble matter was upper than 97%. Thermogravimetry indicated two steps of degradation. The best values of flexural modulus and flexural strength were achieved for the post desig-nated as 1:0.25:0.25. Laser scanning confocal microscopy suggested that the morphology of the posts fractured surface varied according to epoxy-resin:hardener ratio and the ZrP amount. From atomic force micros-copy, the topographic view exposed the shape and size of ZrP particles. Field emission scanning electron microscopy and energy dispersive spectroscopy indicated good adhesion between epoxy resin matrix-ZrP and that the pres-ence of phosphate rendered brittle the fracture surface.

关键词： Epoxy Resin Zirconium Phosphate Flexural Properties Fracture Surface Adhesion

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