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Unique Reversible Crystal-to-Crystal Phase Transition—Structural and Functional Properties of Fused Ladder Thienoarenes

Abe, Yuichiro; Savikhin, Victoria; Yin, Jun; Grimsdale, Andrew C.; Soci, Cesare; Toney, Michael F.; Lam, Yeng Ming

Customer publications

Unique Reversible Crystal-to-Crystal Phase Transition—Structural and Functional Properties of Fused Ladder Thienoarenes

Abe, Yuichiro; Savikhin, Victoria; Yin, Jun; Grimsdale, Andrew C.; Soci, Cesare; Toney, Michael F.; Lam, Yeng Ming

Donor–acceptor type molecules based on fused ladder thienoarenes, indacenodithiophene (IDT), and dithienocyclopenta–thienothiophene (DTCTT), coupled with benzothiadiazole, are prepared, and their solid-state structures are investigated. They display a rich variety of solid phases ranging from amorphous glass states to crystalline states, upon changes in the central aromatic core and side group…
Unusual Interfacial Freezing Phenomena in Hexacontane/Silica Composites

Gao, Xia; Su, Yunlan; Zhao, Weiwei; Qian, Qingyun; Chen, Xin; Wittenbrink, Robert; Wang, Dujin

Customer publications

Unusual Interfacial Freezing Phenomena in Hexacontane/Silica Composites

Gao, Xia; Su, Yunlan; Zhao, Weiwei; Qian, Qingyun; Chen, Xin; Wittenbrink, Robert; Wang, Dujin

The crystallization behaviors of n-hexacontane (C60H122)/Stöber silica (SiO2) composites with various compositions were investigated by a combination of differential scanning calorimetry (DSC), solid-state 13C nuclear magnetic resonance (solid-state 13C NMR), and proton NMR relaxation experiments. By means of DSC, C60H122 molecules in C60H122/silica composites were observed to be involved in…
Uranium Extraction by a Bifunctional Amido-Phosphonic Acid: Coordination Structure and Aggregation

Pecheur, Olivia; Guillaumont, Dominique; Dourdain, Sandrine; Berthon, Laurence; Turgis, Raphael; Fillaux, Clara; Arrachart, Guilhem; Testard, Fabienne

Customer publications

Uranium Extraction by a Bifunctional Amido-Phosphonic Acid: Coordination Structure and Aggregation

Pecheur, Olivia; Guillaumont, Dominique; Dourdain, Sandrine; Berthon, Laurence; Turgis, Raphael; Fillaux, Clara; Arrachart, Guilhem; Testard, Fabienne

Butyl-N,N-di(2-ethylhexyl)carbamoyl-nonylphosphonate (DEHCNPB) is a new amido-phosphonic acid bifunctional ligand with a high uranium extraction efficiency from wet phosphoric acid. In the present work, the DEHCNPB coordination structure toward uranium and its aggregation properties have been fully characterized using experimental and theoretical approaches. DEHCNPB forms associated species, and…
Using the M13 Phage as a Biotemplate to Create Mesoporous Structures Decorated with Gold and Platinum Nanoparticles

Vera-Robles, L. Irais; González-Gracida, Jaqueline; Hernández-Gordillo, Armin; Campero, Antonio

Customer publications

Using the M13 Phage as a Biotemplate to Create Mesoporous Structures Decorated with Gold and Platinum Nanoparticles

Vera-Robles, L. Irais; González-Gracida, Jaqueline; Hernández-Gordillo, Armin; Campero, Antonio

By taking advantage of the physical and chemical properties of the M13 bacteriophage, we have used this virus to synthesize mesoporous silica structures. Major coat protein p8 was chemically modified by attaching thiol groups. As we show, the resulting thiolated phage can be used as a biotemplate able to direct…
α-Lactalbumin and sodium dodecyl sulfate aggregates: Denaturation, complex formation and time stability

Sun, Yang; Oseliero Filho, Pedro L.; Oliveira, Cristiano L. P.

Customer publications

α-Lactalbumin and sodium dodecyl sulfate aggregates: Denaturation, complex formation and time stability

Sun, Yang; Oseliero Filho, Pedro L.; Oliveira, Cristiano L. P.

We have combined isothermal titration calorimetry (ITC), spectroscopy and small-angle X-ray scattering (SAXS) to describe the denaturation process of bovine α-lactalbumin (BLA) induced by sodium dodecyl sulfate (SDS). As presented in the article, in the initial binding step, association of ∼6 SDS molecules with one protein molecule leads to a…
Effect of diamond nanoparticle chains on rheological properties of hydrosol

Kuznetsov, N. M.; Belousov, S. I.; Stolyarova, D. Yu.; Bakirov, A. V.; Chvalun, S. N.; Shvidchenko, A. V.; Eidelman, E. D.; Vul’, A. Ya.

Customer publications

Effect of diamond nanoparticle chains on rheological properties of hydrosol

Kuznetsov, N. M.; Belousov, S. I.; Stolyarova, D. Yu.; Bakirov, A. V.; Chvalun, S. N.; Shvidchenko, A. V.; Eidelman, E. D.; Vul’, A. Ya.

We have recently shown that the sol-gel transition occurs in hydrosol of detonation nanodiamond (DND) particles with size of 4–5 nm. Here we study properties of the hydrosol. Namely, we study the dependence of dynamic viscosity and shear stress on DND concentrations. Dynamic light scattering (DLS) and small-angle X-ray scattering (SAXS)…
Self-assembly and mechanochromic luminescence switching of trifluoromethyl substituted 1,3,4-oxadiazole derivatives

Ongungal, Rahul M.; Sivadas, Aneesh P.; Kumar, N. S. Saleesh; Menon, Sajith; Das, Suresh

Customer publications

Self-assembly and mechanochromic luminescence switching of trifluoromethyl substituted 1,3,4-oxadiazole derivatives

Ongungal, Rahul M.; Sivadas, Aneesh P.; Kumar, N. S. Saleesh; Menon, Sajith; Das, Suresh

The synthesis, self-assembly and mechanochromic properties of a series of oxadiazole derivatives (TFOXD1, TFOXD4, TFOXD6 and TFOXD8) substituted with a dialkoxy stilbene and trifluoromethyl benzene moieties are reported. All the derivatives formed stable gels in aliphatic solvents and with the exception of TFOXD1 exhibited monotropic liquid crystalline behavior. The photophysical…
Stretching Temperature Dependency of Lamellar Thickness in Stress-Induced Localized Melting and Recrystallized Polybutene-1

Wang, Yaotao; Jiang, Zhiyong; Fu, Lianlian; Lu, Ying; Men, Yongfeng

Customer publications

Stretching Temperature Dependency of Lamellar Thickness in Stress-Induced Localized Melting and Recrystallized Polybutene-1

Wang, Yaotao; Jiang, Zhiyong; Fu, Lianlian; Lu, Ying; Men, Yongfeng

The structural parameters such as long spacing and thicknesses of crystalline lamellae and amorphous layers of polybutene-1 crystallized from quiescent melt at different isothermal temperatures and established by tensile stretching the isothermally crystallized samples at different temperatures via a stress induced localized melting and recrystallization process were determined by small-angle…