The pH-responsive phase separation of type-A gelatin and dextran characterized with static multiple light scattering (S-MLS)

2022 ◽  
pp. 107503
Author(s):  
Qi Wang ◽  
Qianwan Guo ◽  
Wenlong Niu ◽  
Ling Wu ◽  
Wen Gong ◽  
...  
Keyword(s):  
Phase Separation ◽  
Light Scattering ◽  
Type A ◽  
Ph Responsive ◽  
Multiple Light Scattering

A Time-Resolved Low-Angle Light Scattering Apparatus. Application to Phase Separation Problems in Polymer Systems

2001 ◽  
Vol 66 (6) ◽  
pp. 973-982 ◽  
Author(s):  
Čestmír Koňák ◽  
Jaroslav Holoubek ◽  
Petr Štěpánek
Keyword(s):  
Phase Separation ◽  
Light Scattering ◽  
Signal To Noise Ratio ◽  
Scattered Light ◽  
Ccd Camera ◽  
Time Resolved ◽  
Polymer Systems ◽  
Software Analysis ◽  
Phase Separation Kinetics ◽  
Small Angle Light Scattering

A time-resolved small-angle light scattering apparatus equipped with azimuthal integration by means of a conical lens or software analysis of scattering patterns detected with a CCD camera was developed. Averaging allows a significant reduction of the signal-to-noise ratio of scattered light and makes this technique suitable for investigation of phase separation kinetics. Examples of applications to time evolution of phase separation in concentrated statistical copolymer solutions and dissolution of phase-separated domains in polymer blends are given.

Phase Separation and Spatial Morphology in Sodium Silicate Glasses by AFM, Light Scattering and NMR

2013 ◽  
Vol 96 (8) ◽  
pp. 2454-2460 ◽  
Author(s):  
Abbas Hodroj ◽  
Patrick Simon ◽  
Pierre Florian ◽  
Marie-Hélène Chopinet ◽  
Yann Vaills
Keyword(s):  
Phase Separation ◽  
Light Scattering ◽  
Sodium Silicate ◽  
Silicate Glasses ◽  
Spatial Morphology

scholarly journals Biocellulose Masks as Delivery Systems: A Novel Methodological Approach to Assure Quality and Safety

Cosmetics ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 66 ◽  
Author(s):  
Paola Perugini ◽  
Mariella Bleve ◽  
Fabiola Cortinovis ◽  
Antonio Colpani
Keyword(s):  
Light Scattering ◽  
Bacterial Cellulose ◽  
Near Infrared ◽  
Gas Permeability ◽  
Methodological Approach ◽  
Safety Evaluation ◽  
Nir Spectroscopy ◽  
Quality And Safety ◽  
Multiple Light Scattering

Bacterial cellulose (BC) has become of great interest in recent years, as a delivery system in several areas of application, including food, drugs, and cosmetics, thanks to its exclusive advantages, such as high biocompatibility, water holding capacity, and good gas permeability. The novel approach of the authors has led to a protocol for checking the quality and safety of bacterial cellulose matrices in the manufacture of cosmetic masks. Two non-destructive techniques, near-infrared spectroscopy (NIR) and multiple light scattering (MLS), were used to verify different parameters affecting the quality of BC sheets, allowing cellulose masks to be checked over time. NIR spectroscopy allowed for discovering changes in the water content, depending on filling/packaging procedures, like flat-folding. Multiple light scattering was used to ascertain the stability of solutions in contact with masks. From a clinical standpoint, the cutaneous tolerability of biocellulose masks, and their effect on skin parameters, were evaluated through some specific “in vivo” tests. Also, a safety evaluation during application was conducted through different studies: a short-term one after single application, and a long-term one upon continued use.

scholarly journals Dynamical correlations for multiple light scattering in laminar flow

1991 ◽  
Vol 1 (4) ◽  
pp. 471-491 ◽  
Author(s):  
D. Bicout ◽  
E. Akkermans ◽  
R. Maynard
Keyword(s):  
Light Scattering ◽  
Laminar Flow ◽  
Multiple Light Scattering
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