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Ligand Shell Structure in Lead Sulfide–Oleic Acid Colloidal Quantum Dots Revealed by Small-Angle Scattering

Weir, Michael P.; Toolan, Daniel T. W.; Kilbride, Rachel C.; Penfold, Nicholas J. W.; Washington, Adam L.; King, Stephen M.; Xiao, James; Zhang, Zhilong; Gray, Victor; Dowland, Simon; Winkel, Jurjen; Greenham, Neil C.; Friend, Richard H.; Rao, Akshay; Ryan, Anthony J.; Jones, Richard A. L.

 ApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticlesSAXSShapeSizeTechnique

Ligand Shell Structure in Lead Sulfide–Oleic Acid Colloidal Quantum Dots Revealed by Small-Angle Scattering

Weir, Michael P.; Toolan, Daniel T. W.; Kilbride, Rachel C.; Penfold, Nicholas J. W.; Washington, Adam L.; King, Stephen M.; Xiao, James; Zhang, Zhilong; Gray, Victor; Dowland, Simon; Winkel, Jurjen; Greenham, Neil C.; Friend, Richard H.; Rao, Akshay; Ryan, Anthony J.; Jones, Richard A. L.

Nanocrystal quantum dots are generally coated with an organic ligand layer. These layers are a necessary consequence of their chemical synthesis, and in addition they play a key role in controlling the optical and electronic properties of the system. Here we describe a method for quantitative measurement of the ligand…
Nanocrystalline ODS-iron aluminide by cryo-milling: consolidation, microstructure and mechanical behavior

Sarma, S. Sudhakara; Prasad, Satya; Joardar, Joydip; Suresh, K.; Reddy, A. V.; Vijay, R.

 ApplicationCharacterizationCustomer publicationsInorganic materialsMaterialMetalsSAXSSizeTechnique

Nanocrystalline ODS-iron aluminide by cryo-milling: consolidation, microstructure and mechanical behavior

Sarma, S. Sudhakara; Prasad, Satya; Joardar, Joydip; Suresh, K.; Reddy, A. V.; Vijay, R.

Nanocrystalline oxide dispersion strengthened (ODS) Fe-25 at% Al alloy was produced by cryo-milling of elemental powder blend and Y2O3. The as-milled powder was consolidated by hot extrusion. The Microstructure and mechanical properties of the consolidated material were evaluated. Fracture of powder particles during milling was dominant due to cryo temperatures…
Harnessing Heat Beyond 200 °C from Unconcentrated Sunlight with Nonevacuated Transparent Aerogels

Zhao, Lin; Bhatia, Bikram; Yang, Sungwoo; Strobach, Elise; Weinstein, Lee A.; Cooper, Thomas A.; Chen, Gang; Wang, Evelyn N.

 ApplicationCharacterizationCustomer publicationsMaterialParticlesRenewable energySAXSSizeTechnique

Harnessing Heat Beyond 200 °C from Unconcentrated Sunlight with Nonevacuated Transparent Aerogels

Zhao, Lin; Bhatia, Bikram; Yang, Sungwoo; Strobach, Elise; Weinstein, Lee A.; Cooper, Thomas A.; Chen, Gang; Wang, Evelyn N.

Heat at intermediate temperatures (120-220 °C) is in significant demand in both industrial and domestic sectors for applications such as water and space heating, steam generation, sterilization, and other industrial processes. Harnessing heat from solar energy at these temperatures, however, requires costly optical and mechanical components to concentrate the dilute…
The influence of pH, protein concentration and calcium ratio on the formation and structure of nanotubes from partially hydrolyzed bovine ?-lactalbumin

Geng, XiaoLu; Kirkensgaard, Jacob Judas Kain; Arleth, Lise; Otte, Jeanette; Ipsen, Richard

 ApplicationCharacterizationCustomer publicationsFoodFood scienceMaterialProteins & DNA/RNASAXSSelf-assembled materialShapeSizeStructural biologyTechnique

The influence of pH, protein concentration and calcium ratio on the formation and structure of nanotubes from partially hydrolyzed bovine ?-lactalbumin

Geng, XiaoLu; Kirkensgaard, Jacob Judas Kain; Arleth, Lise; Otte, Jeanette; Ipsen, Richard

Formation of nanotubes from partially hydrolysed ?-lactalbumin (?-La) was investigated at five pH values, two concentrations of ?-La and two calcium levels. Nanotubes were formed under almost all combinations of the investigated factors, and for the first time the formation of nanotubes at low pH (4.0) and low protein concentration…
Encapsulation of Aspartic Protease in Nonlamellar Lipid Liquid Crystalline Phases

Valldeperas, Maria; Talaikis, Martynas; Dhayal, Surender K.; Veli?ka, Martynas; Barauskas, Justas; Niaura, Gediminas; Nylander, Tommy

 ApplicationCharacterizationCustomer publicationsFoodFood scienceLipidsLiquid crystalsMaterialPhase analysisProteins & DNA/RNASAXSSizeTechnique

Encapsulation of Aspartic Protease in Nonlamellar Lipid Liquid Crystalline Phases

Valldeperas, Maria; Talaikis, Martynas; Dhayal, Surender K.; Veli?ka, Martynas; Barauskas, Justas; Niaura, Gediminas; Nylander, Tommy

Encapsulation of proteins within lipid inverse bicontinuous cubic phases (Q2) has been widely studied for many applications, such as protein crystallization or drug delivery of proteins for food and pharmaceutical purposes. However, the use of the lipid sponge (L3) phase for encapsulation of proteins has not yet been well explored.…
Effects of artepillin C on model membranes displaying liquid immiscibility

Pazin, W. M.; Vilanova, N.; Voets, I. K.; Soares, A. E. E.; Ito, A. S.

 ApplicationCharacterizationCustomer publicationsLipidsMaterialPhase analysisSAXSShapeSizeStructural biologyTechnique

Effects of artepillin C on model membranes displaying liquid immiscibility

Pazin, W. M.; Vilanova, N.; Voets, I. K.; Soares, A. E. E.; Ito, A. S.

It has been hypothesized that the therapeutic effects of artepillin C, a natural compound derived from Brazilian green propolis, are likely related to its partition in the lipid bilayer component of biological membranes. To test this hypothesis, we investigated the effects of the major compound of green propolis, artepillin C,…
Poly(bis-arylimidazoliums) possessing high hydroxide ion exchange capacity and high alkaline stability

Fan, Jiantao; Willdorf-Cohen, Sapir; Schibli, Eric M.; Paula, Zoe; Li, Wei; Skalski, Thomas J. G.; Sergeenko, Ania Tersakian; Hohenadel, Amelia; Frisken, Barbara J.; Magliocca, Emanuele; Mustain, William E.; Diesendruck, Charles E.; Dekel, Dario R.; Holdcroft, Steven

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialRenewable energySAXSShapeSizeTechniqueWAXS

Poly(bis-arylimidazoliums) possessing high hydroxide ion exchange capacity and high alkaline stability

Fan, Jiantao; Willdorf-Cohen, Sapir; Schibli, Eric M.; Paula, Zoe; Li, Wei; Skalski, Thomas J. G.; Sergeenko, Ania Tersakian; Hohenadel, Amelia; Frisken, Barbara J.; Magliocca, Emanuele; Mustain, William E.; Diesendruck, Charles E.; Dekel, Dario R.; Holdcroft, Steven

The hydroxide anion exchange polymers are key materials of solid polymer electrolyte devices that operate under alkaline conditions. Here the authors show the rational design of such polymers that exhibit high ion exchange capacity and exceptional stability under highly caustic…
Synergistic effects from super-small sized TiO2 and SiOx nanoparticles within TiO2/SiOx/carbon nanohybrid lithium-ion battery anode

Wang, Xiaoyan; Xia, Yonggao; Zuo, Xiuxia; Schaper, Simon J.; Yin, Shanshan; Ji, Qing; Liang, Suzhe; Yang, Zhaohui; Xia, Senlin; Xiao, Ying; Zhu, Jin; Müller-Buschbaum, Peter; Cheng, Ya-Jun

 ApplicationCharacterizationCompositesCustomer publicationsMaterialParticlesRenewable energySAXSSizeTechnique

Synergistic effects from super-small sized TiO2 and SiOx nanoparticles within TiO2/SiOx/carbon nanohybrid lithium-ion battery anode

Wang, Xiaoyan; Xia, Yonggao; Zuo, Xiuxia; Schaper, Simon J.; Yin, Shanshan; Ji, Qing; Liang, Suzhe; Yang, Zhaohui; Xia, Senlin; Xiao, Ying; Zhu, Jin; Müller-Buschbaum, Peter; Cheng, Ya-Jun

TiO2/SiOx/carbon nanohybrid consisting of super-small sized TiO2 and SiOx nanoparticles is in situ formed within the in situ formed carbon matrix using difunctional methacrylate monomers as solvent and carbon source. The relative composition of TiO2 and SiOx is systematically tuned by varying the feeding mass ratio of the precursors (TEOS/TTIP)…
Polymorphic states and phase transitions in a comb-like polymer having a rigid polyester backbone and flexible side chains

Danke, Varun; Gupta, Gaurav; Huth, Heiko; Schawe, Jürgen E. K.; Beiner, Mario

 ApplicationCharacterizationCustomer publicationsFoodFood scienceLipidsLiquid crystalsMaterialPhase analysisSAXSSelf-assembled materialSizeTechnique

Polymorphic states and phase transitions in a comb-like polymer having a rigid polyester backbone and flexible side chains

Danke, Varun; Gupta, Gaurav; Huth, Heiko; Schawe, Jürgen E. K.; Beiner, Mario

Structure formation in an alkoxylated polyester having rigid backbone and flexible side chains composed of 10 alkyl carbons per side chain is studied using X-ray diffraction, conventional DSC and flash DSC techniques. Two crystalline states-modification B and modification A are observed with their occurrence depending on the thermal treatment. Additionally,…
Shape modulation of squaramide-based supramolecular polymer nanoparticles

Talens, Victorio Saez; Makurat, D. M. M.; Liu, Tingxian; Dai, Wei; Guibert, Clément; Noteborn, Willem E. M.; Voets, Ilja K.; Kieltyka, Roxanne E.

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticlesSAXSSelf-assembled materialShapeSizeTechnique

Shape modulation of squaramide-based supramolecular polymer nanoparticles

Talens, Victorio Saez; Makurat, D. M. M.; Liu, Tingxian; Dai, Wei; Guibert, Clément; Noteborn, Willem E. M.; Voets, Ilja K.; Kieltyka, Roxanne E.

We report the synthesis and self-assembly of a library of squaramide-based bolaamphiphiles with variable hydrophobic and hydrophilic domain sizes, consisting of varied aliphatic chains (n = 2 to 12 methylene repeat units) and linear oligo(ethylene glycol) (m = 11 to 36 repeat units), to understand their effect on the formation…
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