Copolycondensation of Regular Functional Silane and Siloxane in Aqueous Emulsion Using B(C6F5)3 as a Catalyst

2007 ◽  
Vol 208 (17) ◽  
pp. 1883-1892 ◽  
Author(s):  
Claire Longuet ◽  
Christine Joly-Duhamel ◽  
François Ganachaud
Keyword(s):  
Aqueous Emulsion ◽  
Regular Functional

scholarly journals Synthesis of diblock copolymer spheres, worms and vesicles via RAFT aqueous emulsion polymerization of hydroxybutyl methacrylate

2021 ◽  
Author(s):  
Saul J. Hunter ◽  
Joseph R. Lovett ◽  
Oleksandr O. Mykhaylyk ◽  
Elizabeth R. Jones ◽  
Steven P. Armes
Keyword(s):  
Phase Diagram ◽  
Emulsion Polymerization ◽  
Diblock Copolymer ◽  
Aqueous Emulsion

RAFT aqueous emulsion polymerization of hydroxybutyl methacrylate using a poly(glycerol monomethacrylate) precursor leads to diblock copolymer spheres, worms or vesicles. A pseudo-phase diagram is constructed and the vesicles are briefly evaluated as a Pickering emulsifier.

scholarly journals Preparation and Structural Investigation of PMMA-Polystyrene ^|^lsquo;Janus Beads^|^rsquo; by Rapid Evaporation of an Ethyl Acetate Aqueous Emulsion

2012 ◽  
Vol 10 (0) ◽  
pp. 360-366 ◽  
Author(s):  
Yuji Kiyono ◽  
Laszlo Szikszai ◽  
Junichi Watanabe ◽  
Olaf Karthaus ◽  
Roland Hass ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Structural Investigation ◽  
Aqueous Emulsion

ChemInform Abstract: Silver-Catalyzed Decarboxylative Trifluoromethylthiolation of Aliphatic Carboxylic Acids in Aqueous Emulsion.

ChemInform ◽  
2014 ◽  
Vol 45 (49) ◽  
pp. no-no
Author(s):  
Feng Hu ◽  
Xinxin Shao ◽  
Dianhu Zhu ◽  
Long Lu ◽  
Qilong Shen
Keyword(s):  
Carboxylic Acids ◽  
Aqueous Emulsion ◽  
Aliphatic Carboxylic Acids

scholarly journals DEVELOPMENT AND EVALUATION OF A HYBRID TYPE WATERPROOFING METHOD USING A COMBINATION OF POLYURETHANE RESIN AND AQUEOUS EMULSION

2018 ◽  
Vol 24 (58) ◽  
pp. 919-922
Author(s):  
Hiroyasu KATAOKA ◽  
Haruka OGAWA ◽  
Takuya MIZUKAMI ◽  
Takashi MASUDA
Keyword(s):  
Aqueous Emulsion ◽  
Hybrid Type ◽  
Polyurethane Resin

scholarly journals THE INFLUENCE OF LECITHIN AND CHOLESTERIN UPON THE GROWTH OF TUMORS

1913 ◽  
Vol 17 (3) ◽  
pp. 344-352 ◽  
Author(s):  
T. Brailsford Robertson ◽  
Theodore C. Burnett
Keyword(s):  
Sodium Oleate ◽  
Primary Tumor ◽  
Chloride Solution ◽  
Strontium Chloride ◽  
Aqueous Emulsion ◽  
Simultaneous Injection ◽  
Primary Growth ◽  
Metastatic Growth

1. Cholesterin, whether suspended in dilute alcohol or in sodium oleate solution, when injected directly into tumors causes a marked acceleration both of the primary and of the metastatic growth. 2. The acceleration of the growth of the primary tumor by cholesterin is most evident in the premetastatic stage. 3. Lecithin, when injected in the form of an aqueous emulsion directly into tumors, diminishes the tendency to form metastases, retards the metastatic growth when it does occur, and in some instances also retards the primary growth. 4. The retardation due to lecithin is most evident in the metastatic stage. 5. Simultaneous injection of M/6 strontium chloride solution into the tumors does not appreciably affect the action of the lecithin.

scholarly journals The Nutritional and Pharmacological Potential of New Australian Thraustochytrids Isolated from Mangrove Sediments

Marine Drugs ◽  
2020 ◽  
Vol 18 (3) ◽  
pp. 151 ◽  
Author(s):  
Thi Linh Nham Tran ◽  
Ana F. Miranda ◽  
Adarsha Gupta ◽  
Munish Puri ◽  
Andrew S. Ball ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Extracellular Polysaccharide ◽  
Buffer Zone ◽  
Added Value ◽  
Oil Bodies ◽  
High Concentration ◽  
Mangrove Sediments ◽  
Aqueous Emulsion ◽  
Total Fatty Acids

Mangrove sediments represent unique microbial ecosystems that act as a buffer zone, biogeochemically recycling marine waste into nutrient-rich depositions for marine and terrestrial species. Marine unicellular protists, thraustochytrids, colonizing mangrove sediments have received attention due to their ability to produce large amounts of long-chain ω3-polyunsaturated fatty acids. This paper represents a comprehensive study of two new thraustochytrids for their production of valuable biomolecules in biomass, de-oiled cakes, supernatants, extracellular polysaccharide matrixes, and recovered oil bodies. Extracted lipids (up to 40% of DW) rich in polyunsaturated fatty acids (up to 80% of total fatty acids) were mainly represented by docosahexaenoic acid (75% of polyunsaturated fatty acids). Cells also showed accumulation of squalene (up to 13 mg/g DW) and carotenoids (up to 72 µg/g DW represented by astaxanthin, canthaxanthin, echinenone, and β-carotene). Both strains showed a high concentration of protein in biomass (29% DW) and supernatants (2.7 g/L) as part of extracellular polysaccharide matrixes. Alkalinization of collected biomass represents a new and easy way to recover lipid-rich oil bodies in the form of an aqueous emulsion. The ability to produce added-value molecules makes thraustochytrids an important alternative to microalgae and plants dominating in the food, pharmacological, nutraceutical, and cosmetics industries.

scholarly journals PLGA Microspheres of hGH of Preserved Native State Prepared Using a Self-Regulated Process

Pharmaceutics ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 683
Author(s):  
Jebun Nessa Diana ◽  
Ying Tao ◽  
Qiran Du ◽  
Meng Wang ◽  
Chinta Uday Kumar ◽  
...  
Keyword(s):  
Osmotic Pressure ◽  
Recombinant Human Growth Hormone ◽  
Human Growth ◽  
High Dose ◽  
Burst Release ◽  
Polymeric Microspheres ◽  
Aqueous Emulsion ◽  
Initial Burst ◽  
Initial Burst Release ◽  
Physical Chemical

The challenges of formulating recombinant human growth hormone (rhGH) into sustained-release polymeric microspheres include two mutual causal factors, protein denaturing by the formulation process and severe initial burst release related with relative high dose. The stabilizers to protect the proteins must not evoke osmotic pressure inside the microspheres, and the contact of the protein with the interface between water and organic solution of the polymer must be minimized. To meet these criteria, rhGH was pre-formulated into polysaccharide particles via an aqueous–aqueous emulsion in the present study, followed by encapsulating the particles into microspheres through a self-regulated process to minimize the contact of the protein with the water–oil interface. Polysaccharides as the protein stabilizer did not evoke osmotic pressure as small sugar stabilizers, the cause of severe initial burst release. Reduced initial burst enabled reduced protein loading to 9% (from 22% of the once commercialized Nutropin depot), which in turn reduced the dosage form index from 80 to 8.7 and eased the initial burst. A series of physical chemical characterizations as well as biologic and pharmacokinetic assays confirmed that the present method is practically feasible for preparing microspheres of proteins.

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