Fadel, Ophélie; Girard, Luc; Gomes Rodrigues, Donatien; Bauduin, Pierre; Le Goff, Xavier; Rossignol-Castera, Anne; L’Hermitte, Annabelle; Diat, Olivier
Micellization in vegetable oils: A structural characterisation
The solubilisation of polar and polyphenol antioxidant in vegetable oils was studied. It was shown that the use of a polyglyceryl-3-diisostearate (PG3DS), a bio-sourced emulsifier well known in cosmetics, increases the yield of solubilisation thanks to some aggregation properties analysed using x-ray scattering technique. We show indeed that PG3DS forms…
Mesoporous Silica Coated Polydopamine Functionalized Reduced Graphene Oxide for Synergistic Targeted Chemo-Photothermal Therapy
Shao, Leihou; Zhang, Ruirui; Lu, Jianqing; Zhao, Caiyan; Deng, Xiongwei; Wu, Yan
The integration of different therapies into a single nanoplatform has shown great promise for synergistic tumor treatment. Herein, mesoporous silica (MS) coated polydopamine functionalized reduced graphene oxide (pRGO) further modified with hyaluronic acid (HA) (pRGO@MS-HA) has been utilized as a versatile nanoplatform for synergistic targeted chemo-photothermal therapy against cancer. A…
Mesochanneled Hierarchically Porous Aluminosiloxane Aerogel Microspheres as a Stable Support for pH-Responsive Controlled Drug Release
Vazhayal, Linsha; Talasila, Sindhoor; Abdul Azeez, Peer Mohamed; Solaiappan, Ananthakumar
The molecular-scale self-assembly of a 3D aluminosiloxane (Al–O–Si) hybrid gel network was successfully performed via the cocondensation of hydrolyzed alumina (AlOOH) and (3-aminopropyl)trimethoxysilane (APS). It was transformed into a microspherical aerogel framework of Al–O–Si containing mesochannels with tunable hierarchically bimodal meso/macroporosities by a subcritical drying technique.…
Melt Crystallization Behavior and Spherulitic Morphology of Poly(Trimethylene Terephthalate)/Poly(Propylene Glycol) Copolymers with Different Poly(Propylene Glycol) Molecular Weights
Li, Peng; Yao, Chenguang; Yang, Guisheng
Poly(trimethylene terephthalate)/poly(propylene glycol) (PTT/PPG) copolymers with different PPG molecular weights (400–4,000 g /mol) were successfully synthesized and characterized. Double melting endotherms during isothermal melt crystallization were observed by differential scanning calorimetry. Middle-temperature melting endotherms in all copolymers were stronger than that in PTT homopolymer…
Mechanism of Particle Formation in Silver/Epoxy Nanocomposites Obtained through a Visible-Light-Assisted in Situ Synthesis
dell’Erba, Ignacio E.; Martínez, Francisco D.; Hoppe, Cristina E.; Eliçabe, Guillermo E.; Ceolín, Marcelo; Zucchi, Ileana A.; Schroeder, Walter F.
A detailed understanding of the processes taking place during the in situ synthesis of metal/polymer nanocomposites is crucial to manipulate the shape and size of nanoparticles (NPs) with a high level of control. In this paper, we report an in-depth time-resolved analysis of the particle formation process in silver/epoxy nanocomposites…
Mechano-switchable, luminescent gels derived from salts of a long-chained, fatty-acid gelator
Zhang, Mohan; Weiss, Richard G.
Stimulus-responsive molecular gel systems, based on metal salts of a luminescent gelator, 9,10-dioxooctadecanoic acid (DODA), are reported. These salts are structurally the simplest metallo-gelators of which we are aware that exhibit controllable mechano-responsive and luminescent properties. Aggregation is more favored by the metal salts than for DODA itself. However, gelation…
Mechanically robust conductive carbon clusters confined ethylene methyl acrylate–based flexible composites for superior shielding effectiveness
Bhawal, Poushali; Ganguly, Sayan; Das, Tushar Kanti; Mondal, Subhadip; Das, N. C.
Arresting of conducting carbon black into polymeric matrix to develop flexible and light weight composite has been a widely practiced platform. Extensive development of telecommunication creates a major vexations regarding radiation pollution. Thereafter, we have been motivated to develop low-cost, flexible composites of specialty carbon black VXC (Vulcan XC 72)–filled…
Spontaneous Form II to I Transition in Low Molar Mass Polybutene-1 at Crystallization Temperature Reveals Stabilization Role of Intercrystalline Links and Entanglements for Metastable Form II Crystals
Qiao, Yongna; Yang, Fei; Lu, Ying; Liu, Peiru; Li, Yuesheng; Men, Yongfeng
Spontaneous Form II to I Transition in Low Molar Mass Polybutene-1 at Crystallization Temperature Reveals Stabilization Role of Intercrystalline Links and Entanglements for Metastable Form II…
All-small-molecule organic solar cells based on an electron donor incorporating binary electron-deficient units
Feng, Guitao; Xu, Yunhua; Zhang, Jianqi; Wang, Zhaowei; Zhou, Yi; Li, Yongfang; Wei, Zhixiang; Li, Cheng; Li, Weiwei
In this work, solution-processed organic solar cells with conjugated small molecules both as electron donors and electron acceptors were studied, where the influence of the chemical structures of the donor and acceptor on the device performance was systematically investigated. A small molecular donor incorporating binary electron-deficient units, diketopyrrolopyrrole and pentacyclic…
Studies on the effect of the J-domain on the substrate binding domain (SBD) of Hsp70 using a chimeric human J-SBD polypeptide
Tiroli-Cepeda, Ana O.; Seraphim, Thiago V.; Pinheiro, Glaucia M. S.; Souto, Denio E. P.; Kubota, Lauro T.; Borges, Júlio C.; Barbosa, Leandro R. S.; Ramos, Carlos H. I.
DnaJ/Hsp40 chaperones deliver unfolded proteins and stimulate the ATPase activity of DnaK/Hsp70 via their J-domain. However, the interaction is transient, creating a challenge for detailed analysis. We investigated whether it would be possible to gain further understanding of this interaction by engineering a chimeric polypeptide where the J-domain of Hsp40…