A simple approach using comb-like polymers that undergo nanophase separation between the polyester backbone and the stearoyl side chains is proposed for the preparation of structured non-spherical nanoparticles from a nanoemulsion. Depending on the degree of esterification of the OH groups of poly(glycerol adipate) differently ordered nanostructures is obtained. A perfect lamellar arrangement is obtained for polymers with a high degree of esterification and leads to spherical nanoparticles with an internal onion-like structure. However, when the degree of esterification is only 20 mol%, polygonal nanoparticles with an internal pseudo-hexagonal structure are obtained. The differences in the nanoparticle shapes are related to the volume fraction of the paraffinic pool.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/marc.201100565 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimization and characterization of physicochemical, morphological, structural, thermal, and rheological properties of microwave-assisted extracted pectin from Dillenia indica fruit.
Int J Biol Macromol
January 2025
Department of Food Engineering and Technology, Tezpur University, Napaam, Sonitpur, Tezpur, Assam, India. Electronic address:
Microwave-assisted extraction of pectin from Dillenia indica (DI) fruit was optimized using Box-Behnken design to maximize yield and quality. Parameters such as solid:solvent (1:10-1:30), microwave power (200-600 W), and extraction time (4-10 min) were varied to determine the optimal conditions. Through experimentation, the optimized extraction parameters were identified as 1:23.
View Article and Find Full Text PDFPreparation and characterization of the octenyl succinic anhydride (OSA) modified sphingan WL gum as novel biopolymeric surfactants.
Int J Biol Macromol
January 2025
State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong, People's Republic of China. Electronic address:
Combining polymer and surfactant in one agent namely polymeric surfactants with both high viscosity and surface activity has become a viable alternative for the traditional enhanced oil recovery (EOR) processes. With the purpose of developing new polymeric surfactants, the biopolymer flooding agent sphingan WL gum was modified by octenyl succinic anhydride (OSA) through the esterification reaction. The effects of molecular weight (MW) of WL and the OSA: WL ratio on the properties of the products were investigated.
View Article and Find Full Text PDFDeepening the Role of Pectin in the Tissue Assembly Process During Tomato Grafting.
Plants (Basel)
December 2024
Área de Fisiología Vegetal, Facultad de Ciencias Biológicas y Ambientales, Universidad de León, 24007 León, Spain.
Cell walls play essential roles in cell recognition, tissue adhesion, and wound response. In particular, pectins as cell-adhesive agents are expected to play a key role in the early stages of grafting. To test this premise, this study focused on examining the dynamics of the accumulation and degree of methyl-esterification of pectic polysaccharides at the graft junctions using tomato autografts as an experimental model.
View Article and Find Full Text PDFSustainable microwave-based eutectic mixture assisted purification of low-methoxy pectin and its role as an edible emulsifier in carrot jam preparation.
Food Chem
December 2024
Green Separation Engineering Laboratory, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India. Electronic address:
An optimized microwave-assisted low methoxyl pectin extraction procedure was described. Six task specific deep eutectic solvents (TDES) were used in the extraction of pectin from bilimbi (LMABP) and pomelo peels (LMCGP). Response surface methodology-based optimization of the parameters like feed-to-solvent ratio, extraction time, and microwave power level results in 72.
View Article and Find Full Text PDFMild ultrasound-assisted alkali de-esterification modified pectins: Characterization and structure-activity relationships in immunomodulatory effects.
Ultrason Sonochem
January 2025
College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China. Electronic address:
Apple pectin (AP), a well-established dietary fiber, offers significant health benefits, particularly in immunomodulation. However, the structure-activity relationship (SAR) in this context remains poorly understood. This study aimed to elucidate the impact of varying degrees of esterification (DE) on AP's SAR in immunomodulatory activity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!