Results 271 to 280 of about 1,571,208 (337)

Dicationic organic salts: gelators for ionic liquids

Soft Matter, 2014
Diimidazolium and dipyrrolidinium organic salts were tested for their ability to gel both organic solvents and ionic liquids. Organic salts containing 1-(1-imidazolylmethyl)-3,5-di-(3'-octylimidazolylmethyl)-benzene and 1-(N-pyrrolidylmethyl)-3,5-di-(N,N-octylpyrrolidylmethyl)-benzene cations were used.
Francesca, D'Anna, Carla, Rizzo, Paola, Vitale, Giuseppe, Lazzara, Renato, Noto   +4 more
openaire   +2 more sources

Light-Activated Ionic Gelation of Common Biopolymers

Langmuir, 2011
Biopolymers such as alginate and pectin are well known for their ability to undergo gelation upon addition of multivalent cations such as calcium (Ca(2+)). Here, we report a simple way to activate such ionic gelation by UV irradiation. Our approach involves combining an insoluble salt of the cation (e.g., calcium carbonate, CaCO(3)) with an aqueous ...
Vishal, Javvaji, Aditya G, Baradwaj, Gregory F, Payne, Srinivasa R, Raghavan   +3 more
openaire   +2 more sources

Gelation of ionic liquids by small-molecule gelators and their applications

Soft Materials, 2019
Ionic liquids (ILs) are atypical organic salts with many attractive features such as low melting point, low vapor pressure, high thermal stability, and non-flammability.
Wangkhem Paikhomba Singh, Utpal Koch, Rajkumar Sunil Singh   +2 more
openaire   +1 more source

Muscle protein gelation at low ionic strength

Food Research International, 1994
Abstract The process of muscle protein gelation was monitored by dynamic rheological techniques. Gels formed from beef myofibrillar proteins extracted at low ionic strengths ( Γ 2 = 0·02 m ) were characterized as a function of concentration and Γ 2 of the pregelled sol. Network development was studied in real time by measuring changes
A.P. Stone, D.W. Stanley
openaire   +1 more source

Enzymatic Catalyzed Synthesis and Triggered Gelation of Ionic Peptides

Langmuir, 2010
We investigate the possibility of using the protease thermolysin to drive the synthesis and gelation of ionic-complementary peptides from nongelling precursors. In this system, short peptide fragments are continuously interconverted to form a dynamic peptide library, which eventually favors synthesis of peptides that are thermodynamically stabilized by
Guilbaud, Jean-Baptiste, Vey, Elisabeth, Boothroyd, Stephen, Smith, Andrew M., Ulijn, Rein V., Saiani, Alberto, Miller, Aline F.   +6 more
openaire   +3 more sources

Aqueous gelation of ionic liquids: reverse thermoresponsive ion gels

Chemical Communications, 2010
The aqueous gelation of a quaternary ammonium oligo(propylene oxide)-based ionic liquid yields ion gels with a reverse thermoresponsive behavior (i.e., mechanical moduli and viscosity increase with temperature) and enhanced ionic conductivities.
Josep Casamada, Ribot, Carlos, Guerrero-Sanchez, Richard, Hoogenboom, Ulrich S, Schubert   +3 more
openaire   +2 more sources

Nanoencapsulation of active compounds in chitosan by ionic gelation: Physicochemical, active properties and application in packaging.

Food Chemistry
The ionic gelation technique using chitosan to encapsulate active compounds has received lots of attention in the literature due to its ease-of-use and known biodegradability, biocompatibility and antimicrobial properties of the polymer.
N.C.C. Silva, Chloé Chevigny, S. Domenek, Giana Almeida, Odílio Benedito Garrido Assis, Milena Martelli‐Tosi   +5 more
semanticscholar   +1 more source

Preparation of debranched starch nanoparticles by ionic gelation for encapsulation of epigallocatechin gallate.

International Journal of Biological Macromolecules, 2020
Starch nanoparticles are promising candidates for the delivery of active compounds or drugs. The purpose of this study was to prepare nanoparticles from debranched starch using an ionic gelation method. Negatively charged carboxymethyl debranched starch (
Qing Liu, Wei Cai, Tianyuan Zhen, N. Ji, Lei Dai, L. Xiong, Qingjie Sun   +6 more
semanticscholar   +1 more source

Curcumin-loaded polysaccharides-based complex particles obtained by polyelectrolyte complexation and ionic gelation. I-Particles obtaining and characterization.

International Journal of Biological Macromolecules, 2020
Curcumin has essential therapeutic benefits, but it is insoluble in water and thus has low bioavailability. This study aimed to immobilize curcumin into new polysaccharide-based microparticles (gellan, i-carrageenan, and chitosan) to increase its ...
Camelia-Elena Iurciuc-Tincu, L. Atanase, Lăcrămioara Ochiuz, C. Jérôme, V. Sol, Patrick Martin, M. Popa   +6 more
semanticscholar   +1 more source

Enzyme Triggered Gelation of Arginine Containing Ionic-Peptides

MRS Proceedings, 2010
AbstractWe have investigated the possibility of using the protease enzyme thermolysin to catalyse the synthesis and gelation of ionic-complementary peptides from non-gelling peptide precursors. In the described system, thermolysin was added at a fixed concentration (0.3 mg mL−1) to solutions (25 - 100 mg mL−1) of a short tetra-peptide FEFR.
Jean-Baptiste A M Guilbaud, Aline Miller, Alberto Saiani   +2 more
openaire   +1 more source