Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jorge Augusto de Moura Delezuk"'
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A principal reação de derivatização da quitina é a hidrólise dos grupos acetamido, que gera o polímero conhecido como quitosana. O foco do presente estudo é desenvolver um processo eficiente, reprodutivo e versátil para produção de quitosa
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A reação de desacetilação da beta-quitina assistida por ultra-som de alta intensidade foi estudada e os efeitos da amplitude e da duração da irradiação e da temperatura sobre a eficiência da reação e as características das quitosanas obti
Autor:
Jonas Kerwald, Aline Gallo De Mitri, Jorge Augusto de Moura Delezuk, Guilherme José de Castilho, Marisa Masumi Beppu
Publikováno v:
Biomedical Materials & Devices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3543a5345f3c7fcc005a11b6c1a31d79
https://doi.org/10.1007/s44174-022-00021-4
https://doi.org/10.1007/s44174-022-00021-4
Autor:
Jorge Augusto de Moura Delezuk, Livia F. Sgobbi, Rodrigo Sávio Pessoa, Anderson Oliveira Lobo, Bruno V.M. Rodrigues, Tayna S. Cabral
Publikováno v:
Materials Today: Proceedings. 14:694-699
Herein, a green and low-cost approach is proposed for the production of fluorescent fibers from the electrospinning of poly (vinyl alcohol) and graphene quantum dots (citric acid based) for biosensing purposes. This hybrid material was applied as a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ff7e19a8f8b2dd52e71d01a346c430a
https://doi.org/10.1016/j.matpr.2019.02.008
https://doi.org/10.1016/j.matpr.2019.02.008
Publikováno v:
Materials Today: Proceedings. 14:708-715
The chitin insoluble characteristics in aqueous media creates a barrier for biological applications. While the chitosan, the most used derivative from chitin, have been widely used for several applications, due to high solubility in slightly acidic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2af1ce31e28e76a2fccc15c191ff8066
https://doi.org/10.1016/j.matpr.2019.02.010
https://doi.org/10.1016/j.matpr.2019.02.010
Autor:
Bruno V.M. Rodrigues, Jorge Augusto de Moura Delezuk, Rodrigo Sávio Pessoa, Anderson Oliveira Lobo, Livia F. Sgobbi, Thaisa Brandão Ferreira De Moraes, Tayna S. Cabral, Eduardo Rezende Triboni
Publikováno v:
Materials Chemistry and Physics. 219:242-250
Herein, a simple, low-cost and fast approach was proposed to produce fluorescent fibers from the electrospinning of poly (vinyl alcohol)/water-soluble graphene quantum dots (GQDs). Initially, the preparation of GQDs was explored via an easy bottom-up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81f0b2fa27cd5eee384183f67e55d73c
https://doi.org/10.1016/j.matchemphys.2018.08.030
https://doi.org/10.1016/j.matchemphys.2018.08.030
Autor:
Liangfang Zhang, Berta Esteban-Fernández de Ávila, Joseph Wang, Jinxing Li, Elodie Sandraz, Xiaolei Wang, Mingli Xu, Jorge Augusto de Moura Delezuk, Wenjuan Liu, Weiwei Gao, Pavimol Angsantikul, Soracha Thamphiwatana
Publikováno v:
Angewandte Chemie International Edition. 56:2156-2161
The highly acidic gastric environment creates a physiological barrier for using therapeutic drugs in the stomach. While proton pump inhibitors have been widely used for blocking acid-producing enzymes, this approach can cause various adverse effects.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1418d303d39fd9074d4d9c4695d864b2
https://doi.org/10.1002/anie.201611774
https://doi.org/10.1002/anie.201611774
Autor:
Joseph Wang, Jorge Augusto de Moura Delezuk, Berta Esteban-Fernández de Ávila, Doris E. Ramírez-Herrera
Publikováno v:
Nanoscale. 9:2195-2200
A rapid and efficient micromotor-based bacteria killing strategy is described. The new antibacterial approach couples the attractive antibacterial properties of chitosan with the efficient water-powered propulsion of magnesium (Mg) micromotors. These
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c997bf8a472ff2df7ef5234d1475017
https://doi.org/10.1039/c6nr09799e
https://doi.org/10.1039/c6nr09799e
Autor:
Jorge Augusto de Moura Delezuk, Maria Bardosova, C. C. Ryan, Osvaldo N. Oliveira, Martyn E. Pemble, Hiroshi Fudouzi, Adriana Pavinatto
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Our research involves the development of a pH-sensitive chitosan-tetraethyl orthosilicate interpenetrating polymer network (Chi-TEOS IPN) suitable for the introduction of ordered silica nanoparticles. The pH-sensitive properties of the IPN provide an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e2c233c48a91e259019d9df3bcfc782
https://doi.org/10.1007/s10853-016-9841-7
https://doi.org/10.1007/s10853-016-9841-7
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
This paper discusses the production of chitosan by applying high intensity ultrasound irradiation to alpha-chitin suspended in 40% aqueous sodium hydroxide. The average degree of acetylation (DA) of chitosan was determined by 1H NMR spectroscopy and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae3fd1ced8c9da7f0768e4873d795246
https://doi.org/10.1016/j.apacoust.2015.10.002
https://doi.org/10.1016/j.apacoust.2015.10.002