Wettability of Powders

Chibowski, Emil; Hołysz, Lucyna; Szcześ, Aleksandra

doi:10.1002/9781119323716.ch2

Cited by 10 publications

(12 citation statements)

References 82 publications

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“…The higher the value of the zeta potential is (positive or negative), the more stable the colloid dispersion is. Normally, a value of > 30 mV indicates good stability [17]. Our data are in agreement with recent reports which demonstrated the superiority of liposomal doxorubicin in comparison to conventional non-liposomal doxorubicin [18], especially in SUV formulations with high zeta potentials.…”

Section: Zeta-potential Of Doxo Liposomessupporting

confidence: 91%

“…Zeta potential becomes more negative when pH increases and is a measure of magnitude of charges on liposomal vesicles. Recently such assumptions were demonstrated for DPPC and 1,2-dioleoyl-sn-glycero-3-phosphatidylcholine (DOPC) liposomes investigated in 1 mM NaCl (pH 6.2) and phosphate buffer (pH 8.1) in relation to the liposome size, polydispersity index, and zeta potentials [17]. The higher the value of the zeta potential is (positive or negative), the more stable the colloid dispersion is.…”

Section: Zeta-potential Of Doxo Liposomesmentioning

confidence: 98%

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Simple and fast procedure to incorporate doxorubicine in small unilamellar liposomes: effects on liposome size and zeta potential

Socaciu¹,

Diaconeasa²,

Socaciu³

2019

Studia UBB Chemia

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This study aimed to find alternative, cheap and fast procedures to incorporate Doxorubicin in small unilamellar nanoliposomes made of Dipalmitoyl Phosphatidyl Choline and Cholesterol. It was compared the entrapment efficiency of doxorubicin in "home-made" liposomes (1) and in ImmunoSOME liposomes (2), a commercial, expensive formulation. It was obtained an entrapment efficiency of 27.6 % vs 12.1% for formulatios (1) vs (2). The liposomes' size and zeta-potential of formulation (1) ranged from 116 and 120 nm, being smaller than in formulation (2). The zeta potential was negative for both formulations and showed a better stability and monodispersibility also for formulation (1). This fast procedure is convenient and assure efficient doxorubicin entrapment in the monodisperse nanoliposomes. Such simple formulations, easier to be obtained, can offer also good quality/ price ratios and can be produced at larger scale, with higher incorporation efficiency for experimental in vivo studies which aims the targeted delivery of Doxorubicin to cancer tumors in animals.

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Section: Zeta-potential Of Doxo Liposomessupporting

confidence: 91%

Section: Zeta-potential Of Doxo Liposomesmentioning

confidence: 98%

Simple and fast procedure to incorporate doxorubicine in small unilamellar liposomes: effects on liposome size and zeta potential

Socaciu¹,

Diaconeasa²,

Socaciu³

2019

Studia UBB Chemia

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“…The commonly used parameter for wetting characterization is the contact angle which can range from 0 to 180°. In the physical sense, for the same liquid the value of the contact angle depends on the type of solid and the magnitude of interfacial interactions [ 77 ].…”

Section: Resultsmentioning

confidence: 99%

Surface Properties of Graffiti Coatings on Sensitive Surfaces Concerning Their Removal with Formulations Based on the Amino-Acid-Type Surfactants

et al. 2023

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Water-in-oil (w/o) nanoemulsions stabilized with amino acid surfactants (AAS) are one example of nanotechnology detergents of the “brush on, wipe off”-type for removing graffiti coatings from different sensitive surfaces. The high-pressure homogenization (HPH) process was used to obtain the nanostructured fluids (NSFs), including the non-toxic and eco-friendly components such as AAS, esterified vegetable oils, and ethyl lactate. The most effective NSF detergent was determined by response surface methodology (RSM) optimization. Afterwards, several surface properties, i.e., topography, wettability, surface free energy, and the work of water adhesion to surfaces before and after their coverage with the black graffiti paint, as well as after the removal of the paint layers by the eco-remover, were determined. It was found that the removal of graffiti with the use of the NSF detergent is more dependent on the energetic properties and microporous structure of the paint coatings than on the properties of the substrates on which the layers were deposited. The use of NSFs and knowledge of the surface properties could enable the development of versatile detergents that would remove unwanted contamination from various surfaces easily and in a controlled way.

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“…(13) gdzie: i -odpowiednio udział oddziaływań dyspersyjnych i polarnych w termodynamicznej pracy adhezji [10], i -udział oddziaływań Lifshitza-van der Waalsa i kwasowo-zasadowych w pracy adhezji [12]. W zależności od wielkości kąta zwilżania można wyróżnić kilka szczególnych wartości pracy adhezji [64]:  , wówczas praca adhezji równa się pracy kohezji cieczy ;  ;  ;  ;  , co oznacza, że pomiędzy ciałem stałym a cieczą nie ma adhezji.…”

Section: Zwilżanie Powierzchni Ciał Stałychunclassified

Wpływ Działania Plazmy Niskotemperaturowej Na Zmiany Zwilżalności Wybranych Polimerów

Hołysz¹

2021

WiadChem

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Wprowadzenie 1. Plazma 1.1. Praktyczne wykorzystanie plazmy niskotemperaturowej 1.2. Aktywacja powierzchni plazmą 1.3. Zalety i wady modyfikacji powierzchni plazmą 1.4. Wpływ plazmy niskotemperaturowej na właściwości fizykochemiczne polimerów 2. Zwilżanie powierzchni ciał stałych 3. Badania eksperymentalne zwilżalności powierzchni wybranych polimerów przed i po działaniu plazmy 3.1. Aktywacja polimerów plazmą 3.2. Pomiary kątów zwilżania cieczy na powierzchni polimerów 4. Zmiany zwilżalności i adhezji wody do powierzchni polimerów po działaniu plazmy Uwagi końcowe Piśmiennictwo cytowane

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Wettability of Powders

Cited by 10 publications

References 82 publications

Simple and fast procedure to incorporate doxorubicine in small unilamellar liposomes: effects on liposome size and zeta potential

Simple and fast procedure to incorporate doxorubicine in small unilamellar liposomes: effects on liposome size and zeta potential

Surface Properties of Graffiti Coatings on Sensitive Surfaces Concerning Their Removal with Formulations Based on the Amino-Acid-Type Surfactants

Wpływ Działania Plazmy Niskotemperaturowej Na Zmiany Zwilżalności Wybranych Polimerów

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