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13C ss-NMR Singular value decomposition and fitting for sorghum proteins conformation elucidation 高粱蛋白构象的13C - ss-NMR奇异值分解与拟合
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210082
T. Ribeiro, J. A. Scramin, J. Rodrigues, Rubens Bernardes Filho, L. Colnago, L. A. Forato
{"title":"13C ss-NMR Singular value decomposition and fitting for sorghum proteins conformation elucidation","authors":"T. Ribeiro, J. A. Scramin, J. Rodrigues, Rubens Bernardes Filho, L. Colnago, L. A. Forato","doi":"10.1590/0104-1428.20210082","DOIUrl":"https://doi.org/10.1590/0104-1428.20210082","url":null,"abstract":"Carlos, SP, Brasil *tatianaribeiro@ufscar.br Obstract Kafirins, water-insoluble proteins from Sweet Sorghum BR501 grains, have been an alternative to prepare edible coatings for food due to their hydrophobic character. In this work, the secondary structures (SS) content of reduced (SSr) and unreduced (SSu) kafirins were determined by 13 C solid-state-NMR spectroscopy using areas of carbonyl peak. The SS elucidate by fitting the signal with the Lorentzian function shows 56% and 59% of α-helix and 40% and 12% of β-sheet structures for SSr and SSu, respectively. The SS also were elucidated by a Singular value decomposition- SVD method shows 55% and 49% of α-helix and 12% and 8% of β-sheet structure for SSr and SSu, respectively. Since SVD does not depend on the operator and has higher correlation coefficients for α-helix (0.96%) and β-sheet (0.91%), it is a reliable method to quantify the SS of insoluble proteins using","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Poly(methyl methacrylate) and silica nanocomposites as new materials for polymeric optical devices 聚甲基丙烯酸甲酯和二氧化硅纳米复合材料作为聚合物光学器件的新材料
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220009
Rafael Affonso Netto, Fabrícia Faria de Menezes, Rubens Maciel Filho, J. Bartoli
{"title":"Poly(methyl methacrylate) and silica nanocomposites as new materials for polymeric optical devices","authors":"Rafael Affonso Netto, Fabrícia Faria de Menezes, Rubens Maciel Filho, J. Bartoli","doi":"10.1590/0104-1428.20220009","DOIUrl":"https://doi.org/10.1590/0104-1428.20220009","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Poly(vinyl alcohol)/poly(glycerol) dendrimer hydrogel mediated green synthesis of silver nanoparticles 聚(乙烯醇)/聚(甘油)树状聚合物水凝胶介导的绿色纳米银合成
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220025
Pollyana Marcondes, Gisela Helou Rosas, M. E. L. González, A. Queiroz, P. S. Marques
{"title":"Poly(vinyl alcohol)/poly(glycerol) dendrimer hydrogel mediated green synthesis of silver nanoparticles","authors":"Pollyana Marcondes, Gisela Helou Rosas, M. E. L. González, A. Queiroz, P. S. Marques","doi":"10.1590/0104-1428.20220025","DOIUrl":"https://doi.org/10.1590/0104-1428.20220025","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CO2 adsorption by cryogels produced from poultry litter wastes 由家禽垃圾产生的冷冻机对CO2的吸附
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.210075
L. K. Lazzari, D. Perondi, A. J. Zattera, Ruth Marlene Campomanes Santana
{"title":"CO2 adsorption by cryogels produced from poultry litter wastes","authors":"L. K. Lazzari, D. Perondi, A. J. Zattera, Ruth Marlene Campomanes Santana","doi":"10.1590/0104-1428.210075","DOIUrl":"https://doi.org/10.1590/0104-1428.210075","url":null,"abstract":"Poultry litter waste (PLW) is the main by-product generated by the Brazilian poultry industry. A sustainable approach for reusing this waste is the production of biochar to be further used aiming CO2 adsorption. In this work, biochars were produced by varying the N2 flow along the pyrolysis process of 150 (PLW-150) and 1000 (PLW-1000) mL min -1. PLW and biochars were characterized for their morphology, porosity, specific surface area, and CO2 adsorption capacity. From the biochars, carbon cryogels (CC) were produced aiming their use as CO2 adsorbents. The results of the cryogel adsorption test showed a CO2 adsorption capacity of 13.1±2.9 and 33.8±3.3 mg g -1 for the CC-PLW.150 and CC-PLW.1000 cryogels, respectively. Therefore, reusing this residue for cryogels production and its use in the CO2 adsorption signifies an attractive perspective to minimize the environmental damage caused by CO2 emissions.","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67125476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Development and optimization by factorial design of polymeric nanoparticles for simvastatin delivery 辛伐他汀递送聚合物纳米颗粒的研制及析因设计优化
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220016
Dalila Pinto Malaquias, L. Dourado, Â. Lana, Fernando Souza, José Vilela, Margareth Andrade, J. Roa, Á. D. Carvalho-Junior, E. A. Leite
{"title":"Development and optimization by factorial design of polymeric nanoparticles for simvastatin delivery","authors":"Dalila Pinto Malaquias, L. Dourado, Â. Lana, Fernando Souza, José Vilela, Margareth Andrade, J. Roa, Á. D. Carvalho-Junior, E. A. Leite","doi":"10.1590/0104-1428.20220016","DOIUrl":"https://doi.org/10.1590/0104-1428.20220016","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Development and evaluation of nitrile rubbers seals for power transformer application 电力变压器用丁腈橡胶密封件的研制与评价
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210040
Mauro Cesar de Avila, A. P. Munaro, M. Munaro
{"title":"Development and evaluation of nitrile rubbers seals for power transformer application","authors":"Mauro Cesar de Avila, A. P. Munaro, M. Munaro","doi":"10.1590/0104-1428.20210040","DOIUrl":"https://doi.org/10.1590/0104-1428.20210040","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interactions of PP-PET blends modified by montmorillonite with different polarities 不同极性蒙脱土改性PP-PET共混物的相互作用
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220014
Ariane Sarzi Porto, J. L. Alves, A. Morales
{"title":"Interactions of PP-PET blends modified by montmorillonite with different polarities","authors":"Ariane Sarzi Porto, J. L. Alves, A. Morales","doi":"10.1590/0104-1428.20220014","DOIUrl":"https://doi.org/10.1590/0104-1428.20220014","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ecological structure: production of organic impregnation material from mussel shell and combustion 生态结构:由贻贝壳和燃烧生产有机浸渍材料
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210110
Hüseyin Tan, M. Şirin, H. Baltaş
{"title":"Ecological structure: production of organic impregnation material from mussel shell and combustion","authors":"Hüseyin Tan, M. Şirin, H. Baltaş","doi":"10.1590/0104-1428.20210110","DOIUrl":"https://doi.org/10.1590/0104-1428.20210110","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Polymer composite produced with Brazil nut residues and high impact polystyrene 由巴西坚果残渣和高冲击聚苯乙烯制成的聚合物复合材料
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220013
Jefferson Renan Santos da Silva, J. V. C. Fonseca, Thais da Silva Santos, Josiel Bruno de Oliveira, Thiago Monteiro Maquiné, Bruno Mello de Freitas, Raimundo Nonato Alves Silva, N. R. Nascimento, J. Costa, R. Bello, José Costa de Macêdo Neto
{"title":"Polymer composite produced with Brazil nut residues and high impact polystyrene","authors":"Jefferson Renan Santos da Silva, J. V. C. Fonseca, Thais da Silva Santos, Josiel Bruno de Oliveira, Thiago Monteiro Maquiné, Bruno Mello de Freitas, Raimundo Nonato Alves Silva, N. R. Nascimento, J. Costa, R. Bello, José Costa de Macêdo Neto","doi":"10.1590/0104-1428.20220013","DOIUrl":"https://doi.org/10.1590/0104-1428.20220013","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Polyurethane/single wall carbon nanotube/polymethylmethacrylate nanocomposite: PM3 semi-empirical method, Monte Carlo applied 聚氨酯/单壁碳纳米管/聚甲基丙烯酸甲酯纳米复合材料:PM3半经验方法，蒙特卡罗应用
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220050
Juan-Ramón Campos-Cruz, N. Rangel-Vázquez, R. E. Zavala-Arce, Edgar Márquez-Brazon
{"title":"Polyurethane/single wall carbon nanotube/polymethylmethacrylate nanocomposite: PM3 semi-empirical method, Monte Carlo applied","authors":"Juan-Ramón Campos-Cruz, N. Rangel-Vázquez, R. E. Zavala-Arce, Edgar Márquez-Brazon","doi":"10.1590/0104-1428.20220050","DOIUrl":"https://doi.org/10.1590/0104-1428.20220050","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67122113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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