1
|
|
2
|
Zhan F, Gong L, Luan H, Chen Q, Liao G, Feng Y. Enhancing Oil Recovery by Low Concentration of Alkylaryl Sulfonate Surfactant without Ultralow Interfacial Tension. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fuxing Zhan
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 People's Republic of China
| | - Lingyan Gong
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 People's Republic of China
| | - Huoxin Luan
- Research Institute of Experiment and Detection Xinjiang Oilfield Branch Company PetroChina Karamay 834000 People's Republic of China
| | - Quansheng Chen
- Research Institute of Experiment and Detection Xinjiang Oilfield Branch Company PetroChina Karamay 834000 People's Republic of China
| | - Guangzhi Liao
- PetroChina Exploration & Production Company Beijing 100007 People's Republic of China
| | - Yujun Feng
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 People's Republic of China
| |
Collapse
|
3
|
Gong L, Liao G, Luan H, Chen Q, Nie X, Liu D, Feng Y. Oil solubilization in sodium dodecylbenzenesulfonate micelles: New insights into surfactant enhanced oil recovery. J Colloid Interface Sci 2020; 569:219-228. [DOI: 10.1016/j.jcis.2020.02.083] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 10/25/2022]
|
4
|
Orban DE, Moretti A, Uhrich KE. Spatial location of indomethacin associated with unimeric amphiphilic carrier macromolecules as determined by nuclear magnetic resonance spectroscopy. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:575-583. [PMID: 26864907 DOI: 10.1002/mrc.4401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/23/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
A combination of nuclear magnetic resonance (NMR) techniques including, proton NMR, relaxation analysis, two-dimensional nuclear Overhauser effect spectroscopy, and diffusion-ordered spectroscopy, has been used to demonstrate the spatial location of indomethacin within a unimolecular micelle. Understanding the location of drugs within carrier molecules using such NMR techniques can facilitate rational carrier design. In addition, this information provides insight to encapsulation efficiency of different drugs to determine the most efficient system for a particular bioactive. This study demonstrates that drugs loaded by the unimolecular amphiphile under investigation are not necessarily encapsulated but reside or localize to the periphery or interfacial region of the carrier molecule. The results have further implications as to the features of the unimolecular carrier that contribute to drug loading. In addition, evidence of drug retention associated with the unimolecular surfactant is possible in organic media, as well as in an aqueous environment. Such findings have implications for rational carrier design to correlate the carrier features to the drug of interest and indicate the strong retention capabilities of the unimolecular micelle for delivery applications. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- David E Orban
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
- Air Liquide - Advanced Materials, Branchburg, NJ, 08876, USA
| | - Alysha Moretti
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Kathryn E Uhrich
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| |
Collapse
|
5
|
Wangchareansak T, Keniry MA, Liu G, Craig VSJ. Coadsorption of low-molecular weight aromatic and aliphatic alcohols and acids with the cationic surfactant, CTAB, on silica surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6704-6712. [PMID: 24849658 DOI: 10.1021/la501197m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have investigated the coadsorption of a range of small molecules with the cationic surfactant CTAB to silica surfaces over a range of concentrations and CTAB to solute ratios and compared the coadsorption with adsorption in the presence of the salicylate ion. We find that molecules with aromatic character and molecules with double bonds are most favorably adsorbed, and we attribute this to cation-π bonding between the surfactant headgroups and the π orbitals of the unsaturated bonds of the solute molecules. The adsorption is complex and depends on chemical interactions between the solute molecules and the surfactant, which are highly specific to the structure of the solute. To improve our understanding of the specifics of these interactions, we have performed one-dimensional rotating frame Overhauser spectroscopy (ROESY) nuclear magnetic resonance experiments. These experiments show the complexity of the intermolecular interactions and can be used to determine the position of the solute molecule with regard to the CTAB molecules in the adsorbed aggregates. The ROESY spectrum for the salicylate anion is distinct from those of the other solute molecules and suggests that the anions are dimerizing. Along with the cation-π bonding between the dimers, this provides a model for the strong influence that salicylate has on adsorption, micellar structure, and viscoelasticity. The ROESY data indicate that the catechol molecule interacts with all parts of the surfactant alkane chains such that they wrap around the molecule, but this has little effect on the interfacial curvature or aggregate shape. More intense isophthalic acid-CTAB intermolecular ROEs compared to those of other aromatic solutes are consistent with an interaction between isophthalic acid and the headgroups of two surfactant molecules that slows the intramicellar motion of isophthalic acid. Differences in interactions between solute molecules and the aliphatic surfactant chains do not result in changes in micelle structure.
Collapse
Affiliation(s)
- Thipvaree Wangchareansak
- Department of Applied Mathematics, Research School of Physics and Engineering, Australian National University , Canberra 0200, ACT, Australia
| | | | | | | |
Collapse
|
6
|
Solution properties of hydrophobically modified acrylamide-based polysulfobetaines in the presence of surfactants. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2633-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Ochiai B, Ito S, Endo T. Chiral interaction between aromatic aldehydes and a polymer bearing large chiral rings obtained by cyclopolymerization of bisacrylamide. Polym J 2009. [DOI: 10.1038/pj.2009.318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
8
|
Howard SC, Craig VSJ. Adsorption of the cationic surfactant cetyltrimethylammonium bromide to silica in the presence of sodium salicylate: surface excess and kinetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13015-13024. [PMID: 19803469 DOI: 10.1021/la901889m] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The adsorption of cetyltrimethylammonium bromide (CTAB) to silica in the presence of sodium salicylate has been investigated using atomic force microscopy, optical reflectometry, and a quartz crystal microbalance. Salicylate is found to have a dramatic influence on surface adsorption in terms of the kinetics, surface excess, structure of adsorbed aggregates and the mechanical rigidity of the adsorbed film. This is consistent with the bulk solution behavior of more concentrated CTAB-salicylate solutions and reflects the higher local concentration induced by adsorption to the silica surface. Slow adsorption kinetics are found over a wide range of concentrations below the critical micelle concentration.
Collapse
Affiliation(s)
- Shaun C Howard
- Department of Applied Mathematics Research School of Physics and Engineering Australian National University, Canberra, ACT 0200, Australia
| | | |
Collapse
|
9
|
Nichifor M, Bastos M, Lopes S, Lopes A. Characterization of Aggregates formed by Hydrophobically Modified Cationic Dextran and Sodium Alkyl Sulfates in Salt-Free Aqueous Solutions. J Phys Chem B 2008; 112:15554-61. [DOI: 10.1021/jp802543s] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marieta Nichifor
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania, Instituto de Tecnologia Quimica e Biologica (ITQB/UNL), P-2781-901 Oeiras, Portugal, and CIQ (UP), Department of Chemistry, Faculty of Sciences, University of Porto, P-4169-007 Porto, Portugal
| | - Margarida Bastos
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania, Instituto de Tecnologia Quimica e Biologica (ITQB/UNL), P-2781-901 Oeiras, Portugal, and CIQ (UP), Department of Chemistry, Faculty of Sciences, University of Porto, P-4169-007 Porto, Portugal
| | - Sonia Lopes
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania, Instituto de Tecnologia Quimica e Biologica (ITQB/UNL), P-2781-901 Oeiras, Portugal, and CIQ (UP), Department of Chemistry, Faculty of Sciences, University of Porto, P-4169-007 Porto, Portugal
| | - Antonio Lopes
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania, Instituto de Tecnologia Quimica e Biologica (ITQB/UNL), P-2781-901 Oeiras, Portugal, and CIQ (UP), Department of Chemistry, Faculty of Sciences, University of Porto, P-4169-007 Porto, Portugal
| |
Collapse
|
10
|
|
11
|
Nakamura K, Shikata T. Formation and Physicochemical Features of Hybrid Threadlike Micelles in Aqueous Solution. Chemphyschem 2007; 8:2568-74. [DOI: 10.1002/cphc.200700305] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|