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Multilamellar-to-Unilamellar Transition Induced by Diphenylalanine in Lipid Vesicles

Gerbelli, Barbara Bianca; da Silva, Emerson Rodrigo; Miranda Soares, Bruna; Alves, Wendel Andrade; Andreoli de Oliveira, Elisabeth

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Multilamellar-to-Unilamellar Transition Induced by Diphenylalanine in Lipid Vesicles

Gerbelli, Barbara Bianca; da Silva, Emerson Rodrigo; Miranda Soares, Bruna; Alves, Wendel Andrade; Andreoli de Oliveira, Elisabeth

In the present work, we investigate the effect of two short phenylalanine-based peptides on lipid membranes. A simplified model membrane composed of lecithin vesicles was used to incorporate different amounts of the two amino acid sequences, the dimmer l,l-diphenylallanine (FF) and the trimmer cysteine-diphenylallanine (CFF). Spectroscopic and scattering techniques were…
Micro/macro-stress relationship and local stress distribution in polyethylene spherulites upon uniaxial stretching in the small strain domain

Xiong, Bijin; Lame, Olivier; Seguela, Roland; Men, Yongfeng

Customer publications

Micro/macro-stress relationship and local stress distribution in polyethylene spherulites upon uniaxial stretching in the small strain domain

Xiong, Bijin; Lame, Olivier; Seguela, Roland; Men, Yongfeng

Local stress of polyethylene spherulites under uniaxial stretching in small strain domain has been investigated by in-situ wide angle X-ray diffraction (WAXD) in comparison with macroscopic stress. Particular attention is paid to the elastic strain range. The local stress in equatorial and polar regions both increase in absolute value and…
Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method

Acebrón, María; Herrera, Facundo C.; Mizrahi, Martín; Navío, Cristina; Bernardo-Gavito, Ramón; Granados, Daniel; Requejo, Félix G.; Juarez, Beatriz H.

Customer publications

Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method

Acebrón, María; Herrera, Facundo C.; Mizrahi, Martín; Navío, Cristina; Bernardo-Gavito, Ramón; Granados, Daniel; Requejo, Félix G.; Juarez, Beatriz H.

The dielectric nature of organic ligands capping semiconductor colloidal nanocrystals (NCs) makes them incompatible with optoelectronic applications. For this reason, these ligands are regularly substituted through ligand-exchange processes by shorter (even atomic) or inorganic ones. In this work, an alternative path is proposed to obtain inorganically coated NCs. Differently to…
Initial lamellar thickness dependency of recrystallization behavior of poly(4-methyl-1-pentene)

Chen, Ran; Lu, Ying; Jiang, Zhiyong; Men, Yongfeng

Customer publications

Initial lamellar thickness dependency of recrystallization behavior of poly(4-methyl-1-pentene)

Chen, Ran; Lu, Ying; Jiang, Zhiyong; Men, Yongfeng

The isothermal crystallization and subsequent melting process in semicrystalline poly(4-methyl-1-pentene) were investigated via temperature-dependent small- and wide-angle X-ray scattering and Flash DSC techniques. In a phase diagram of inversed crystalline lamellar thickness and temperature, the crystallization and melting lines can be described by two linear dependencies of different slopes and…
Influence of processing conditions on mechanical properties of blends of styrenic block copolymer and poly(phenylene oxide): Miscibility and microdomain size

Yu, Xiangtian; Wang, Xiang; Zhang, Aiming; Zhou, Tao

Customer publications

Influence of processing conditions on mechanical properties of blends of styrenic block copolymer and poly(phenylene oxide): Miscibility and microdomain size

Yu, Xiangtian; Wang, Xiang; Zhang, Aiming; Zhou, Tao

The effect of processing conditions on mechanical properties of poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS) and poly(2,6-dimethy-1,4-phenylene oxide) (PPO) blends were investigated. Differential scanning calorimetry and small angle X-ray scattering were used to study the miscibility and d-spacing of the blends. The processing temperature plays an important role in mechanical properties.…
Influence of fluorinated extractant aggregation in diluent on extraction of salicylic acid: Evidence from equilibrium, SAXS and molecular dynamics simulation

Wu, Xue; Chang, Zhidong; Feng, Jingge; Dang, Hui; Uslu, Hasan; Li, Wenjun

Customer publications

Influence of fluorinated extractant aggregation in diluent on extraction of salicylic acid: Evidence from equilibrium, SAXS and molecular dynamics simulation

Wu, Xue; Chang, Zhidong; Feng, Jingge; Dang, Hui; Uslu, Hasan; Li, Wenjun

In order to get optimal extraction performance as well as ultra-low solvent residual, the extraction behavior of tris(2,2,3,3,4,4,4-heptafluorobutyl) phosphate (FTBP) dissolved in 2,3,4,5,6-Pentafluorotoluene (FB) was evaluated to investigate the influence of the aggregation state on the extraction of salicylic acid (SA). The effect of SA distribution and water content on…