Properties of diclofenac sodium sorption onto natural zeolite modified with cetylpyridinium chloride

Krajišnik, Danina; Daković, Aleksandra; Milojević, Maja; Malenović, Anđelija; Kragović, Milan; Bajuk‐Bogdanović, Danica; Dondur, V.; Milić, Jela

doi:10.1016/j.colsurfb.2010.11.024

Cited by 114 publications

(51 citation statements)

References 41 publications

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“…The high ion exchange capacity of zeolites, their extensive porosities and specific surface areas, as well as their relatively cheap prices, make natural zeolites attractive adsorbents [208][209][210][211][212][213][214][215][216][217][218][219][220][221][222]. However, synthetic zeolites are also widely tested, especially because through synthesis a useful control can be obtained over the Si/Al ratio in the zeolite composition.…”

Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

“…The most common surface modifiers are salts of a variety of quaternary amines such as hexadecyltrimethylammonium (HDTMA, the most popular surfactant) [210][211][212][213][214]224,226,[234][235][236], octadecyldimethylbenzylammonium (ODMBA) [216][217][218], stearyldimethylbenzylammonium (SDBA) [219,224] or benzyltetradecyl ammonium (BDTDA) [212]. Other posibilities are cetylpyridinium salts [211,220], cyclodextrins [208] and chlorosilanes [209].…”

Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

“…Among some of the organic compounds that have been observed to be successfully removed by zeolites are phenolic compounds [208,[210][211][212]223,225,228,232,238], PAHs [209,231], BTEX [209][210][211]236], other aromatics such as nitrobenzene, bisphenol A, aniline and aniline derivatives [208,210,226,232,235], dyes [146,[213][214][215]230,233], pesticides [219,227] and pharmaceuticals [220][221][222]229].…”

Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

See 2 more Smart Citations

Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix

Dordio

Carvalho

2013

Journal of Hazardous Materials

190

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Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

Section: Zeolites and Other Siliceous Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix

Dordio

Carvalho

2013

Journal of Hazardous Materials

190

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“…Supernatant was used for determination of the drug. The initial and final concentration of drug was determined by UV-Vis spectrophotometer (Krajišnik et al, 2011).…”

Section: Drug Loadingmentioning

confidence: 99%

Application of Synthetic Nanozeolite Sodalite in Drug Delivery

2016

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In this study nanozeolite sodalite was synthesized from natural volcanic glass (perlite) as silica (Si) source and sodium aluminate as aluminium (Al) source without using any organic template. We use perlite as Si source because it is cost-effective and available source. These nanoparticles of synthesized zeolite were prepared at 170°C in stainless steel reactor with hydrothermal method. The synthesized nanozeolite was characterized by X-ray diffraction (XRD), fourier transform infrared (FTIR) and scanning electron microscopy (SEM) techniques. Chemical composition of perlite was determined by X-ray fluorescence (XRF).This nanozeolite was modified with cationic surfactant, hexadecyltrimethylammonium bromide (HDTMAB). In this study adsorption of cetirizine (Cet) as a model drug onto nanozeolite sodalite as a carrier of drug was investigated and Ultra Violet-Visible (UV-Vis) spectrophotometry was used for determination of concentrations of Cet at 230 nm. Adsorption characteristics of Cet on nanozeolite sodalite were examined at different times (0-6 h) and also the analysis was carried at three pH levels 4, 5 and 6. Finally three buffered solutions with different pH (1.2, 6.8 and 7.2) were selected for release medium and the temperature was precisely controlled at 37 ± 0.1°C.Rahmani et al., International Current Pharmaceutical Journal, May 2016, 5(6): 55-58

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“…Observa-se que, através da comparação com as figuras 5.3 e 5.7, a adição de CCP não altera as características do sistema, mantendo as dimensões das fibras e o seu enovelamento. Krajisnik et al, 2011. A presença destes picos não foi detectada no termograma da nanofibra contendo este ativo.…”

Section: Análise Morfológicaunclassified

Preparo e caracterização físico-química de filmes nanofibrílicos contendo cloreto de cetilpiridíneo: futura alternativa aos antifúngicos para o tratamento de infecções orais por Candida

Santos¹

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AGRADECIMENTOSAgradeço ao Instituto de Pesquisas Tecnológicas pela oportunidade de trabalhar e desenvolver este estudo nas dependências de seus laboratórios.Ao CNPq, CAPES e RUSP pelo apoio financeiro.À FOUSP pela oportunidade de cursar a pós-graduação.A todos os docentes da Disciplina de Clínica Integrada que me acolheram quando entrei para cursar o doutorado. À Profa. Dra. Maria Aparecida Borsatti pela sua dedicação, paciência e confiança.Ao Prof. Dr. Norberto Nobuo Sugaya por continuar sendo meu eterno orientador. À Profa. Dra. Maria Helena Ambrosio Zanin que, mesmo não sendo minha orientadora oficial, dedicou grande parte do seu tempo e conhecimento no desenvolvimento deste trabalho, muitas vezes me ensinando conhecimento básico sobre química.Ao Prof. Dr. Adriano Marim de Oliveira por sua paciência, dedicação e ensinamentos.À Dra. Natalia Neto Pereira Cerize por seus ensinamentos, paciência e dedicação.Ao Dr. João Guilherme Rocha Poço que, com sua busca em desenvolver produtos odontológicos anti-tártaro, me levou para a pesquisa no laboratório do IPT. Aos meus colegas de pós-graduação pela amizade e convivência.As bibliotecárias da FOUSP por toda paciência e dedicação na revisão bibliográfica. The aim of this study was to prepare electrospun nanofiber films cetylpyridinium chloride (CPC) incorporated test their potential use as antifungal therapy against Candida albicans. CPC was incorporated to three different polymeric solutions, one containing polyvinyl alcohol (PVA), the second containing polyvinylpyrrolidone (PVP) and the third prepared with PVP and poly (methyl methacrylate-co-ethyl acrylate-comethacrylate ammonium) (PMMA). These polymeric solutions were evaluated as to conductivity, viscosity and surface tension, then subjected to a electrospinning process to obtain nanofiber films. The morphology and structure of nanofiber films were analyzed using scanning electron microscopy (SEM). The characterization of nanofiber films was performed by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). The encapsulation efficiency of the CPC nanofibers and the release kinetic profile of CPC and porcine mucosa permeation (Franz cells) were assessed by spectrophotometry. It was also assessed the concentration of CPC to be incorporated (from 0.05 to 5%) in nanofiber to be minimal fungicidal fraction released against strains of C. albicans by disk diffusion tests, compared to 5% miconazole (MCZ). Under these conditions, the PVA solution showed the highest conductivity, viscosity and surface tension. CPC increased conductivity. Both CPC and PMMA did not alter the surface tension of PVP. PMMA reduced viscosity. The solution of PVP/PMMA formed a more uniform film with less beads. Thermograms (TGA / DSC) suggested that the electrospinning process changes the crystallinity of CPC. The encapsulation efficiency reaches 99% of CPC. The release rate of encapsulated CPC was slow during the experimental period of 24 hours. In a nanofibrilic film, the fungicidal activity of CPC 2.5% and 5% MCZ was si...

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Properties of diclofenac sodium sorption onto natural zeolite modified with cetylpyridinium chloride

Cited by 114 publications

References 41 publications

Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix

Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix

Application of Synthetic Nanozeolite Sodalite in Drug Delivery

Preparo e caracterização físico-química de filmes nanofibrílicos contendo cloreto de cetilpiridíneo: futura alternativa aos antifúngicos para o tratamento de infecções orais por Candida

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