Taube, Michal; Pietralik, Zuzanna; Szymanska, Aneta; Szutkowski, Kosma; Clemens, Daniel; Grubb, Anders; Kozak, Maciej
The domain swapping of human cystatin C induced by synchrotron radiation
Domain swapping is observed for many proteins with flexible conformations. This phenomenon is often associated with the development of conformational diseases. Importantly, domain swapping has been observed for human cystatin C (HCC), a protein capable of forming amyloid deposits in brain arteries. In this study, the ability of short exposure…
Structure and self-reinforcing mechanism of biaxially oriented polyethylene pipes produced by solid phase die drawing
Kong, Chen; Wang, Yujie; Ye, Lin; Zhao, Xiaowen
Biaxially oriented polyethylene (PE) pipes were prepared through solid phase die drawing technology. Drawing speed presented a prominent effect on the hoop draw ratio (DRhoop) and axial draw ratio (DRaxial) of the pipes. For pipe with DRhoop/DRaxial of 2.465/1.182, the tensile strength was improved significantly along hoop direction as well…
Thin Biobased Transparent UV-Blocking Coating Enabled by Nanoparticle Self-Assembly
Olson, Emily; Li, Yifan; Lin, Fang-Yi; Miller, Ana; Liu, Fei; Tsyrenova, Ayuna; Palm, Devin; Curtzwiler, Greg W.; Vorst, Keith L.; Cochran, Eric; Jiang, Shan
A waterborne, UV-blocking, and visually transparent nanocomposite coating was formulated with ZnO nanoparticles and 2-hydroxyethyl cellulose (HEC). The coating is highly effective (
Ordered structure effects on β-nucleated isotactic polypropylene/graphene oxide composites with different thermal histories
Yu, Yansong; Xu, Ruizhang; Chen, Jinyao; Kang, Jian; Xiang, Ming; Li, Yuanjie; Li, Lu; Sheng, Xingyue
In this paper, the influence of ordered structure effects (OSE) on crystallization behaviors of b-nucleated isotactic polypropylene/graphene oxide (b-iPP/GO) composites with different thermal histories, which crystallized at a slow cooling rate (called SLOW), fast cooling rate (called FAST) and medium cooling rate (called MED), respectively, was studied by differential scanning…
Influence of extender oil composition on flowing property, thermal stability, and morphology of styrene-b-ethylene-co-butylene-b-styrene copolymer/polypropylene/oil blends
Shi, Xiaotao; Wu, Jianxun; Zhen, Xinping; Xie, Haisheng; Xiong, Chunzhu
In this study, a series of styrene-b-ethylene-co-butylene-b-styrene copolymer (SEBS)/polypropylene (PP)/oil blends with different kinds of oil composition was developed through melt blending. The effect of oil with different composition and properties on its phase equilibrium and “redistribution” in multiphasic SEBS elastomer was systematically studied for the first time. Moreover, an…
Deoxycholic acid and l-Phenylalanine enrich their hydrogel properties when combined in a zwitterionic derivative
Travaglini, Leana; di Gregorio, Maria Chiara; Severoni, Emilia; D’Annibale, Andrea; Sennato, Simona; Tardani, Franco; Giustini, Mauro; Gubitosi, Marta; Del Giudice, Alessandra; Galantini, Luciano
Hypothesis Sodium Deoxycholate (NaDC) and Phenylalanine (Phe) are important biological hydrogelators. NaDC hydrogels form by lowering the pH or by increasing the ionic strength. Phe gels form from saturated solution by thermal induction and slow kinetics. The resulting gels hold great potential in medicine and biology as drug carriers and…
Colloidal Solubility and Agglomeration of Apolar Nanoparticles in Different Solvents
Doblas, David; Kister, Thomas; Cano-Bonilla, Marina; González-García, Lola; Kraus, Tobias
We studied the concentration-dependent agglomeration of apolar nanoparticles in different solvents. Octanethiol-stabilized gold nanoparticles (AuNPs) in evaporating liquid droplets were observed in situ using small-angle X-ray scattering. Concurrent analysis of liquid volume and particle agglomeration provided time-dependent absolute concentrations of free and agglomerated particles. All…
Translation of nanomedicines from lab to industrial scale synthesis: The case of squalene-adenosine nanoparticles
Dormont, Flavio; Rouquette, Marie; Mahatsekake, Clement; Gobeaux, Frédéric; Peramo, Arnaud; Brusini, Romain; Calet, Serge; Testard, Fabienne; Lepetre-Mouelhi, Sinda; Desmaële, Didier; Varna, Mariana; Couvreur, Patrick
A large variety of nanoparticle-based delivery systems have become increasingly important for diagnostic and/or therapeutic applications. Yet, the numerous physical and chemical parameters that influence both the biological and colloidal properties of nanoparticles remain poorly understood. This complicates the ability to reliably produce and deliver well-defined nanocarriers which often leads…
A designer fast Li-ion conductor Li6.25PS5.25Cl0.75 and its contribution to the polyethylene oxide based electrolyte
Li, Dabing; Cao, Liuyang; Liu, Chaodeng; Cao, Guoqin; Hu, Junhua; Chen, Jingbo; Shao, Guosheng
The composite polymer electrolytes, consisting of a flexible matrix and superb fast ion conductor are promising for large-scale practical application in safer lithium metal batteries. The quantification of polymer structure evolution induced by the inorganic filler was rarely reported. Here, a designer cubic argyrodite Li6PS5X sulfide electrolyte was fabricated by…
Block copolymers as bile salt sequestrants: intriguing structures formed in a mixture of an oppositely charged amphiphilic block copolymer and bile salt
Schillén, Karin; Galantini, Luciano; Du, Guanqun; Del Giudice, Alessandra; Alfredsson, Viveka; Carnerup, Anna M.; Pavel, Nicolae V.; Masci, Giancarlo; Nyström, Bo
To study the formation and characterize the structure of mixed complexes of oppositely charged block copolymers and surfactants are of great significance for practical applications, e.g., in drug carrier formulations that are based on electrostatically assisted assembly. In this context, biocompatible block copolymers and biosurfactants (like bile salts) are particularly…