ApplicationCharacterizationCustomer publicationsMaterialSAXSSelf-assembled materialShapeSizeStructural biologySurfactantsTechniqueTemperature

Self-Assembly of the Bio-Surfactant Aescin in Solution: A Small-Angle X-ray Scattering and Fluorescence Study

Dargel, Carina; Geisler, Ramsia; Hannappel, Yvonne; Kemker, Isabell; Sewald, Norbert; Hellweg, Thomas

This work investigates the temperature-dependent micelle formation as well as the micellar structure of the saponin aescin. The critical micelle concentration ( cmc ) of aescin is determined from the concentration-dependent autofluorescence (AF) of aescin. Values between cmcaescin,AF (10°C) = 0.38 ± 0.09 mM and cmcaescin,AF (50°C) = 0.32 ±…
ApplicationCharacterizationCustomer publicationsGIWAXSInorganic materialMaterialRenewable energySizeSurface structure and patternsTechniqueThin films

Room-Temperature Meniscus Coating of >20% Perovskite Solar Cells: A Film Formation Mechanism Investigation

Hu, Hanlin; Ren, Zhiwei; Fong, Patrick W. K.; Qin, Minchao; Liu, Danjun; Lei, Dangyuan; Lu, Xinhui; Li, Gang

Perovskite solar cells (PSCs) are ideally fabricated entirely via a scalable solution process at low temperatures to realize the promise of simple manufacturing, low-cost processing, compatibility with flexible substrates, and perovskite-based tandem solar cells. However, high-quality photoactive perovskite thin films under those processing conditions is a challenge. Here, a laminar…
ApplicationCharacterizationCustomer publicationsMaterialProteins & DNA/RNASAXSShapeSizeStructural biologyTechnique

The domain swapping of human cystatin C induced by synchrotron radiation

Taube, Michal; Pietralik, Zuzanna; Szymanska, Aneta; Szutkowski, Kosma; Clemens, Daniel; Grubb, Anders; Kozak, Maciej

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…
(Hydro)gelsApplicationCharacterizationCustomer publicationsMaterialSAXSShapeSizeStructural biologySurfactantsTechnique

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…
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialSAXSShapeSizeStructural biologySurfactantsTechnique

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…
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticlesSAXSSelf-assembled materialShapeSizeTechniqueTemperature

Core-crystalline nanoribbons of controlled length via diffusion-limited colloid aggregation

Schmarsow, Ruth N.; Ceolín, Marcelo; Zucchi, Ileana A.; Schroeder, Walter F.

It has been previously reported that poly(ethylene) (PE)-based block copolymers self-assemble in certain thermosetting matrices to form a dispersion of one-dimensional (1D) nanoribbons. Such materials exhibit exceptional properties that originate from the high aspect ratio of the elongated nano-objects. However, the ability to prepare 1D assemblies with well-controlled dimensions is…
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSShapeSizeTechniqueTemperature

Hierarchical Sticker and Sticky Chain Dynamics in Self-Healing Butyl Rubber Ionomers

Mordvinkin, Anton; Suckow, Marcus; Böhme, Frank; Colby, Ralph H.; Creton, Costantino; Saalwächter, Kay

We present a detailed comparison of the microscopic dynamics and the macroscopic mechanical behavior of novel butyl rubber ionomers with tunable dynamics of sparse sticky imidazole-based sidegroups that form clusters of about 20 units separated by essentially unperturbed chains. This material platform shows promise for application as self-healing elastomers. Size…
(Hydro)gelsApplicationCharacterizationCustomer publicationsInorganic materialMaterialNanoparticles & colloidsSAXSSizeTechnique

3D-Printing of Pure Metal–Organic Framework Monoliths

Lim, Gwendolyn J. H.; Wu, Yue; Shah, Bhuvan B.; Koh, J. Justin; Liu, Connie K.; Zhao, Dan; Cheetham, Anthony K.; Wang, John; Ding, Jun

Metal–organic frameworks (MOFs) are usually synthesized in powder form. For many practical applications, MOFs need to be shaped into monoliths that can be easily handled. However, conventional shaping methods, such as pelletization, often result in a decrease in functionality. Recently, MOF-containing monoliths have been made using direct ink writing (DIW;…
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPolymer researchSAXSSizeTechnique

Fabrication and investigation of 3D tuned PEG/PEDOT: PSS treated conductive and durable cotton fabric for superior electrical conductivity and flexible electromagnetic interference shielding

Ghosh, Sabyasachi; Ganguly, Sayan; Remanan, Sanjay; Das, Narayan Ch

Promotions of conducting e-textiles are drawing attention for mitigating electromagnetic radiation pollution. Probably it is a huge challenge to gain long-term durable and stable fabric for all-weather outdoor application. In this work, a facile dip coating design has been adopted to fabricate PEG/PEDOT: PSS treated fabric. The high electrical conductivity…