scholarly journals Implementation of the emulsification-diffusion method by solvent displacement for polystyrene nanoparticles prepared from recycled material

RSC Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 2226-2234
Author(s):  
Ana María Pineda-Reyes ◽  
Mauricio Hernández Delgado ◽  
María de la Luz Zambrano-Zaragoza ◽  
Gerardo Leyva-Gómez ◽  
Nestor Mendoza-Muñoz ◽  
...  
Keyword(s):  
Expanded Polystyrene ◽  
Added Value ◽  
Diffusion Method ◽  
Displacement Method ◽  
Polystyrene Nanoparticles ◽  
Solvent Displacement ◽  
Recycled Material

A novel solvent emulsification-displacement method for obtaining polystyrene nanoparticles is reported. This process has an added value and can be an alternative for the recycling of expanded polystyrene.

scholarly journals Direct visualization of the ouzo zone through aggregation-induced dye emission for the synthesis of highly monodispersed polymeric nanoparticles

2019 ◽  
Vol 3 (7) ◽  
pp. 1375-1384 ◽  
Author(s):  
Eshu Middha ◽  
Purnima Naresh Manghnani ◽  
Denise Zi Ling Ng ◽  
Huan Chen ◽  
Saif A. Khan ◽  
...  
Keyword(s):  
Polymeric Nanoparticles ◽  
Direct Visualization ◽  
Displacement Method ◽  
Monodisperse Nanoparticles ◽  
Solvent Displacement

We report a new enhanced solvent displacement method for the synthesis of highly monodisperse nanoparticles with direct visualization of the ouzo zone.

Physicochemical properties, bioactive components, antioxidant and antimicrobial potentials of some selected honeys from different provinces of Turkey

2019 ◽  
Vol 121 (6) ◽  
pp. 1298-1313
Author(s):  
Ömer Erturk ◽  
Sefine Kalın ◽  
Melek Çol Ayvaz
Keyword(s):  
Physicochemical Parameters ◽  
Phenolic Content ◽  
Biochemical Properties ◽  
Added Value ◽  
Diffusion Method ◽  
Total Phenolic ◽  
Volatile Components ◽  
Content Type ◽  
Volatile Analysis ◽  
Reducing Ability

PurposeThe purpose of this paper is to characterize monofloral and heterofloral honey samples (chestnut, lavandula, acacia and sunflower) from different regions of Turkey according to their physicochemical (moisture content, acidity, ash, sucrose, reducing sugar and hydroxymethylfurfural content) and biochemical properties to compare regional and species differences that are thought to contain different types of plant sources.Design/methodology/approachPhysicochemical investigations were performed according to AOAC methods. Mineral analysis and volatile analysis were performed by using atomic absorption spectrometry and GC–MS, respectively. Antimicrobial activities of honey samples were evaluated based on disc diffusion method and minimum inhibition concentration (MIC) values. The assays followed to determine total phenolic content and antioxidative and activities are spectrophotometric methods.FindingsThe obtained values of physicochemical parameters are among the values that can be accepted according to legal regulations. The most abundant mineral was potassium, which made up 81 per cent of the total mineral content, ranging between 165.7 and 301.6 mg/kg. A total of 87 different volatile components, some of which are highlighted in the literature to have antimicrobial and antioxidant effects, were detected. The maximum phenolic content, antioxidant activity against DPPH radical and ferric reducing ability were detected in the chestnut honeys. All tested honeys showed antimicrobial activity with MIC values between 6.25 and 50 µg/mL.Originality/valueThe present study has the feature of being a large study in terms of the region from where honey samples were selected and choice of analysis. The values obtained from physicochemical parameters reveal that the honeys from related region can be consumed with confidence. The biological properties found in honeys make them products of high added value and excellent quality.

Preparation of nanodispersions containing β-carotene by solvent displacement method

2008 ◽  
Vol 22 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Henelyta S. Ribeiro ◽  
Boon-Seang Chu ◽  
Sosaku Ichikawa ◽  
Mitsutoshi Nakajima
Keyword(s):  
Displacement Method ◽  
Solvent Displacement ◽  
Β Carotene

Interfacial deposition of functionalized copolymers onto nanoemulsions produced by the solvent displacement method

2001 ◽  
Vol 279 (8) ◽  
pp. 784-792 ◽  
Author(s):  
T. Trimaille ◽  
C. Chaix ◽  
T. Delair ◽  
C. Pichot ◽  
H. Teixeira ◽  
...  
Keyword(s):  
Displacement Method ◽  
Solvent Displacement

Optimization of the emulsification and solvent displacement method for the preparation of solid lipid nanoparticles

2010 ◽  
Vol 37 (2) ◽  
pp. 160-166 ◽  
Author(s):  
Eddy Kei Noriega-Peláez ◽  
Néstor Mendoza-Muñoz ◽  
Adriana Ganem-Quintanar ◽  
David Quintanar-Guerrero
Keyword(s):  
Solid Lipid Nanoparticles ◽  
Lipid Nanoparticles ◽  
Displacement Method ◽  
Solid Lipid ◽  
Solvent Displacement

Preparation and characterization of concentrated γ-Oryzanol nanodispersions by solvent displacement method: Effect of processing conditions on nanoparticles formation

2022 ◽  
Vol 123 ◽  
pp. 107161
Author(s):  
Noamane Taarji ◽  
Meryem Bouhoute ◽  
Isao Kobayashi ◽  
Kenichi Tominaga ◽  
Hiroko Isoda ◽  
...  
Keyword(s):  
Processing Conditions ◽  
Displacement Method ◽  
Method Effect ◽  
Solvent Displacement

scholarly journals Comparative Insight upon Chitosan Solution and Chitosan Nanoparticles Application on the Phenolic Content, Antioxidant and Antimicrobial Activities of Individual Grape Components of Sousão Variety

Antioxidants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 178
Author(s):  
Vanessa Silva ◽  
Rupesh Kumar Singh ◽  
Nelson Gomes ◽  
Bruno Gonçalves Soares ◽  
Adriana Silva ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Chitosan Nanoparticles ◽  
Chitosan Solution ◽  
Antimicrobial Activities ◽  
Added Value ◽  
Diffusion Method ◽  
Total Phenolic ◽  
Resistant Bacteria ◽  
Pharmaceutical Industries ◽  
Antioxidant And Antimicrobial Activities

Chitosan, a natural polysaccharide, has been previously proposed as an elicitor in plants to prevent pathogen infections. The present study aimed to analyze the effect of chitosan solution and chitosan nanoparticles treatment applied on the grapevine variety Sousão with respect to the phenolic composition, antioxidant potential and antibacterial activity of its individual grape components. Grapevine plants of selected lines were sprayed with chitosan solution and chitosan nanoparticles, and ethanolic extracts of stems, seeds and skins were prepared from grapevines treated and not treated with chitosan. Total phenolic, anthocyanin and tannin contents were studied, and the identification of the individual phenolic compounds was performed by HPLC-DAD. The antimicrobial susceptibility method was performed using the Kirby-Bauer disc diffusion method against multidrug-resistant bacteria. Overall, there was small increase in the concentration of phenolic compounds, antioxidant and antimicrobial activities in grape components treated with chitosan solution. Seed extracts showed the highest antioxidant and antimicrobial activities. The studied individual components obtained from chitosan-treated grapevines could represent an added value due to the increased antioxidant and antibacterial potentials. The phenolic compounds found in components may be used in food and pharmaceutical industries as natural food preservers and antibiotic adjuvants.

scholarly journals Formation of size-tuneable biodegradable polymeric nanoparticles by solvent displacement method using micro-engineered membranes fabricated by laser drilling and electroforming

2016 ◽  
Vol 304 ◽  
pp. 703-713 ◽  
Author(s):  
Rahimah Othman ◽  
Goran T. Vladisavljević ◽  
Hamed Shahmohamadi ◽  
Zoltan K. Nagy ◽  
R.G. Holdich
Keyword(s):  
Polymeric Nanoparticles ◽  
Laser Drilling ◽  
Displacement Method ◽  
Solvent Displacement

scholarly journals Forming a lutein nanodispersion via solvent displacement method: The effects of processing parameters and emulsifiers with different stabilizing mechanisms

2016 ◽  
Vol 194 ◽  
pp. 416-423 ◽  
Author(s):  
Tai Boon Tan ◽  
Nor Shariffa Yussof ◽  
Faridah Abas ◽  
Hamed Mirhosseini ◽  
Imededdine Arbi Nehdi ◽  
...  
Keyword(s):  
Processing Parameters ◽  
Displacement Method ◽  
Solvent Displacement
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