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Li Y, Guo Y, Jiang H, Zhang Q, Liu J. Antimicrobial activity, foaming properties, and interacting mechanism of rhamnolipids in presence of silk fibroin through spectroscopy, molecular docking, and microbiological experiments. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124899. [PMID: 39094269 DOI: 10.1016/j.saa.2024.124899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/21/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
As a type of biosurfactant, rhamnolipids (RLs) are multifunctional skin-care ingredients, and the molecular interaction of RLs with silk fibroin (SF) is a more complicated process than has long been believed. The interaction and functional properties of them, and their potential as fungicidal agents for agricultural products and as organic preservatives for cosmetics were assessed in this paper. The SF addition makes the RLs aggregation easier through the complexes formation, which decreases the applied concentration of surfactant. The results of spectroscopic analyses and molecular docking suggest that hydrogen bonding and van der Waals forces are significant contributed to the binding mechanism between the two substances. The addition of SF notably enhances the foaming capacity and stability of RLs. The certain antibacterial and antifungal properties of RLs are basically not affected by the SF addition, even the SF-RLS system demonstrates an unobvious synergistic inhibitory impact on Glomerella cingulate (GC). The results offer a theoretical framework for the utilization of RLs as natural fungicides and preservatives in presence of nutritional components, considering the properties of RLs as nontoxic, biodegradable, environmentally friendly, and good compatibility.
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Affiliation(s)
- Yutong Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Yu Guo
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Hanlu Jiang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China.
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China.
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2
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Yang Y, Liu Y, Xu M, Cai J, Li Q, Wan Z, Yang X. Hierarchical Self-Aggregation of Multifunctional Steviol Glycosides in Aqueous Solutions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16438-16448. [PMID: 38981019 DOI: 10.1021/acs.jafc.4c02386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Steviol glycosides (SGs) are a natural sweetener widely used in the food and beverage industry, but the low solubility and stability of SG aqueous solutions greatly limit their application performance, especially in liquid formulations. In this work, we explore the solubility behavior of rebaudioside A (Reb A) in water, a major component of SGs, with the aim of clarifying the underlying mechanisms of the solubility and stability constraints of SGs, as well as the impact on their multifunctional properties. We demonstrate for the first time that Reb A exhibits hierarchical self-assembly in solutions, forming spherical micelles first when the concentration exceeds its critical micelle concentration (5.071 mg/mL), which then further assemble into large rod-like aggregates. The formation of such large Reb A aggregates is mainly dominated by hydrogen bonding and short-range Coulomb interaction energy, thus leading to the low solubility and precipitation of Reb A solutions. Surprisingly, aggregated Reb A structures display significantly improved organoleptic properties, revealing that self-aggregation can be developed as a simple, efficient, and green strategy for improving the taste profile of SGs. Additionally, the self-aggregation of Reb A at high concentrations impairs active encapsulation and also affects its interfacial and emulsifying properties.
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Affiliation(s)
- Yunyi Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Mengyue Xu
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Laboratory of Physics and Physical Chemistry of Foods, Wageningen University, Bornse Weilanden 9, 6708WG Wageningen, The Netherlands
| | - Jiyang Cai
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Qing Li
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Zhili Wan
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
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3
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Sagiri SS, Samateh M, John G. Investigating the Emulsifying Mechanism of Stereoisomeric Sugar Fatty Acyl Molecular Gelators. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13763-13772. [PMID: 38937253 PMCID: PMC11238593 DOI: 10.1021/acs.langmuir.3c03274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 06/10/2024] [Accepted: 06/19/2024] [Indexed: 06/29/2024]
Abstract
The emulsifying mechanism of supramolecular stereoisomeric sugar fatty acyl molecular gelators was evaluated. In-house-synthesized mannitol dioctanoate (M8) and sorbitol dioctanoate (S8) were tested. The stereoisomeric difference between the sugar groups significantly affected the gelation and emulsifying properties of the gelators. M8 and S8 formed oleogels at 2 and 3.5% (w/v) and emulsified water up to 30 and 60% (v/v), respectively. Microscopy showed that the gelator fibers are at the W/O interfaces, demonstrating a solid particle or network mode of stabilization. The long fibers of M8 were unable to completely encompass the water droplets, resulting in poor emulsification. Small, hair-like fibers of S8 showed better emulsification. When sunflower wax (SFW, 1% w/v) was added as a coemulsifier, synergetic action between the wax and S8 improved the stability of emulsions. Such synergy was not seen between SFW and M8, henceforth emulsion stability was not improved. This study proved that a subtle stereoisomeric difference at the molecular level can greatly alter the supramolecular and emulsifying properties of sugar-fatty acyl compounds.
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Affiliation(s)
- Sai Sateesh Sagiri
- Department
of Chemistry and Biochemistry, the City College of New York, 160 Convent Avenue, New York, New York 10031, United States
| | - Malick Samateh
- Department
of Chemistry and Biochemistry, the City College of New York, 160 Convent Avenue, New York, New York 10031, United States
- Doctoral
Program in Chemistry, the City University
of New York, Graduate
Center, New York, New York 10016, United States
| | - George John
- Department
of Chemistry and Biochemistry, the City College of New York, 160 Convent Avenue, New York, New York 10031, United States
- Doctoral
Program in Chemistry, the City University
of New York, Graduate
Center, New York, New York 10016, United States
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4
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Abdelaziz SA, Ahmed EM, Sadek M. Synthesis of homologous series of surfactants from renewable resources, structure-properties relationship, surface active performance, evaluation of their antimicrobial and anticancer potentialities. Sci Rep 2024; 14:13201. [PMID: 38851845 PMCID: PMC11162424 DOI: 10.1038/s41598-024-62905-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/22/2024] [Indexed: 06/10/2024] Open
Abstract
Sugar esters display surface-active properties, wetting, emulsifying, and other physicochemical phenomena following their amphipathic nature and recognize distinct biological activity. The development of nutritional pharmaceuticals and other applications remains of great interest. Herein, three novel homologous series of several N-mono-fatty acyl amino acid glucosyl esters were synthesized, and their physicochemical properties and biological activities were evaluated. The design and preparation of these esters were chemically performed via the reaction of glucose with different fatty acyl amino acids as renewable starting materials, with the suggestion that they would acquire functional characteristics superior and competitive to certain conventional surfactants. The synthesized products are characterized using FTIR, 1H-NMR, and 13C-NMR spectroscopy. Further, their physicochemical properties, such as HLB, CMC, Γmax, γCMC, and Amin, were determined. Additionally, their antimicrobial and anticancer efficiency were assessed. The results indicate that the esters' molecular structure, including the acyl chain length and the type of amino acid, significantly influences their properties. The measured HLB ranged from 8.84 to 12.27, suggesting their use as oil/water emulsifiers, wetting, and cleansing agents. All esters demonstrate promising surface-active characteristics, with moderate to high foam production with good stability. Notably, compounds 6-O-(N-dodecanoyl, tetradecanoyl cysteine)-glucopyranose (34, 35), respectively and 6-O-(N-12-hydroxy-9-octadecenoyl cysteine)-glucopyranose (38) display superior foamability. Wetting efficiency increased with decreasing the chain length of the acyl group. The storage results reveal that increasing the fatty acyl hydrophobe length enhances the derived emulsion's stability for up to 63 days. Particularly, including cysteine in these glucosyl esters improves wetting, foaming, and emulsifying potentialities. Furthermore, the esters exhibit antibacterial activity against several tested Gram-positive and Gram-negative bacteria and fungi. On the other hand, they show significant antiproliferative effects on some liver tumor cell lines. For instance, compounds 6-O-(N-12-hydroxy-9-octadecenoylglycine)-glucopyranose (28), 6-O-(N-dodecanoyl, hexadecanoyl, 9-octadecenoyl and 12-hydroxy-9-octadecenoylvaline)- glucopyranose (29, 31, 32 and 33), respectively in addition to the dodecanoyl, hexadecanoyl, 9-octadecenoyl and 12-hydroxy-9-octadecenoyl cysteine glucopyranose (34, 36, 37 and 38), respectively significantly inhibit the examined cancer cells.
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Affiliation(s)
- Shimaa A Abdelaziz
- Chemistry Department, Faculty of Science, Al-Azhar University (Girls), Cairo, Egypt.
| | - Entesar M Ahmed
- Chemistry Department, Faculty of Science, Al-Azhar University (Girls), Cairo, Egypt
| | - M Sadek
- Chemistry Department, Faculty of Science, Al-Azhar University (Girls), Cairo, Egypt.
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5
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Lu H, Pourceau G, Briou B, Wadouachi A, Gaudin T, Pezron I, Drelich A. Sugar-Based Surfactants: Effects of Structural Features on the Physicochemical Properties of Sugar Esters and Their Comparison to Commercial Octyl Glycosides. Molecules 2024; 29:2338. [PMID: 38792199 PMCID: PMC11123692 DOI: 10.3390/molecules29102338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Two series of sugar esters with alkyl chain lengths varying from 5 to 12 carbon atoms, and with a head group consisting of glucose or galactose moieties, were synthesized. Equilibrium surface tension isotherms were measured, yielding critical micellar concentration (CMC) surface tensions at CMC (γcmc) and minimum areas at the air-water interface (Amin). In addition, Krafft temperatures (Tks) were measured to characterize the ability of molecules to dissolve in water, which is essential in numerous applications. As a comparison to widely used commercial sugar-based surfactants, those measurements were also carried out for four octyl d-glycosides. Impacts of the linkages between polar and lipophilic moieties, alkyl chain lengths, and the nature of the sugar head group on the measured properties were highlighted. Higher Tk and, thus, lower dissolution ability, were found for methyl 6-O-acyl-d-glucopyranosides. CMC and γcmc decreased with the alkyl chain lengths in both cases, but Amin did not appear to be influenced. Both γcmc and Amin appeared independent of the ester group orientation. Notably, alkyl (methyl α-d-glucopyranosid)uronates were found to result in noticeably lower CMC, possibly due to a closer distance between the carbonyl function and the head group.
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Affiliation(s)
- Huiling Lu
- Université de Technologie de Compiègne, ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), Centre de Recherche Royallieu—CS 60 319, 60203 Compiègne Cedex, France; (H.L.); (I.P.)
| | - Gwladys Pourceau
- Laboratoire de Glycochimie, et des Agroressources d’Amiens (LG2A), UR 7378—Institut de Chimie de Picardie, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039 Amiens Cedex, France; (B.B.); (A.W.)
| | - Benoit Briou
- Laboratoire de Glycochimie, et des Agroressources d’Amiens (LG2A), UR 7378—Institut de Chimie de Picardie, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039 Amiens Cedex, France; (B.B.); (A.W.)
| | - Anne Wadouachi
- Laboratoire de Glycochimie, et des Agroressources d’Amiens (LG2A), UR 7378—Institut de Chimie de Picardie, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039 Amiens Cedex, France; (B.B.); (A.W.)
| | - Théophile Gaudin
- Université de Technologie de Compiègne, ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), Centre de Recherche Royallieu—CS 60 319, 60203 Compiègne Cedex, France; (H.L.); (I.P.)
| | - Isabelle Pezron
- Université de Technologie de Compiègne, ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), Centre de Recherche Royallieu—CS 60 319, 60203 Compiègne Cedex, France; (H.L.); (I.P.)
| | - Audrey Drelich
- Université de Technologie de Compiègne, ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), Centre de Recherche Royallieu—CS 60 319, 60203 Compiègne Cedex, France; (H.L.); (I.P.)
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6
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Oliveira R, Almeida IF. Patient-Centric Design of Topical Dermatological Medicines. Pharmaceuticals (Basel) 2023; 16:ph16040617. [PMID: 37111373 PMCID: PMC10144586 DOI: 10.3390/ph16040617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Topical treatments are essential approaches to skin diseases but are associated with poor adherence. Topical vehicles have the primary purpose of ensuring drug effectiveness (by modulating drug stability and delivery, as well as skin properties) but have a marked impact on treatment outcomes as they influence patient satisfaction and, consequently, adherence to topical treatments. There is also a wide variety of vehicles available for topical formulations, which can complicate the decisions of clinicians regarding the most appropriate treatments for specific skin disorders. One of the possible strategies to improve topical-treatment adherence is the implementation of patient-centric drug-product design. In this process, the patient's needs (e.g., those related to motor impairment), the needs associated with the disease (according to the skin lesions' characteristics), and the patient's preferences are taken into consideration and translated into a target product profile (TPP). Herein, an overview of topical vehicles and their properties is presented, along with a discussion of the patient-centric design of topical dermatological medicines and the proposal of TPPs for some of the most common skin diseases.
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Affiliation(s)
- Rita Oliveira
- FP-BHS-Biomedical and Health Sciences Research Unit, FFP-I3ID-Instituto de Investigação, Inovação e Desenvolvimento, Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, Rua Carlos da Maia 296, 4200-150 Porto, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo de Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo de Ferreira 228, 4050-313 Porto, Portugal
| | - Isabel F Almeida
- UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo de Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo de Ferreira 228, 4050-313 Porto, Portugal
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Li Y, Zhao Z, Nai X, Li M, Kong J, Chen Y, Liu M, Zhang Q, Liu J, Yan H. Effects of Temperature, Metal Ions and Biosurfactants on Interaction Mechanism between Caffeic Acid Phenethyl Ester and Hemoglobin. Molecules 2023; 28:molecules28083440. [PMID: 37110675 PMCID: PMC10144779 DOI: 10.3390/molecules28083440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Caffeic acid phenylethyl ester (CAPE) is a natural polyphenol extracted from propolis, which is reported to have several pharmacological effects such as antibacterial, antitumor, antioxidant and anti-inflammatory activities. Hemoglobin (Hb) is closely related to the transport of drugs, and some drugs, including CAPE, can lead to a change in Hb concentration. Herein, the effects of temperature, metal ions and biosurfactants on the interaction between CAPE and Hb were studied using ultraviolet-visible spectroscopy (UV-Vis), fluorescence spectroscopy, circular dichroism (CD), dynamic light scattering (DLS) and molecular docking analysis. The results showed that the addition of CAPE led to changes in the microenvironment of Hb amino acid residues as well as the secondary structure of Hb. Hydrogen bonding and van der Waals force were found to be the main driving forces for the interaction between CAPE and Hb through fluorescence spectroscopy and thermodynamic parameter data. The results of fluorescence spectroscopy also showed that lowering the temperature, adding biosurfactants (sodium cholate (NaC) and sodium deoxycholate (NaDC)) and the presence of Cu2+ increased the binding force between CAPE and Hb. These results provide useful data for the targeted delivery and absorption of CAPE and other drugs.
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Affiliation(s)
- Yutong Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Zhen Zhao
- College of Pharmacy, Liaocheng University, Liaocheng 252059, China
| | - Xiao Nai
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Mingyuan Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jing Kong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Yanrong Chen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Min Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Hui Yan
- College of Pharmacy, Liaocheng University, Liaocheng 252059, China
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8
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Kong J, Li M, Chen Y, Li Y, Liu M, Zhang Q, Xuan H, Liu J. Hydrophobic interaction of four bile salts with hemoglobin induces unfolding of protein and evades protein degeneration induced by urea. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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9
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Nafi AW, Taseidifar M, Pashley RM, Ninham BW. Size control of precipitated particles of amino acids using a bubble column evaporator. Heliyon 2023; 9:e13516. [PMID: 36825195 PMCID: PMC9942006 DOI: 10.1016/j.heliyon.2023.e13516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
The precipitation of five amino acids: DL-alanine, L-arginine, L-leucine, DL-methionine and L-tyrosine was studied at their solubility limits and isoelectric point by using a bubble column evaporator (BCE). The precipitation of amino acids via a bubble column evaporator and a standard stirring method were compared via turbidity measurements. Particle size, zeta potential and polydispersity index (PDI) were also measured using a Malvern Zeta-sizer and the particle morphology was examined using Scanning Electron Microscopy (SEM). The novel BCE process emerges as a much more effective method than precipitation by standard stirring methods. Better control of fine particle size and growth rates is achieved. The amino acids in zwitterionic form exhibit the same unexplained bubble coalescence inhibition phenomenon as do common salts. This suggests obvious applications in flotation technologies.
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Affiliation(s)
- Atikah Wan Nafi
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT, 2610, Australia
| | - Mojtaba Taseidifar
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT, 2610, Australia
- Corresponding author.
| | - Richard M. Pashley
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT, 2610, Australia
| | - Barry W. Ninham
- Department of Applied Mathematics, Research School of Physical Sciences, The Australian National University, Canberra, ACT, 2600, Australia
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Ogawa S. Aqueous Sugar-Based Amphiphile Systems: Recent Advances in Phase Behavior and Nanoarchitectonics. J Oleo Sci 2023; 72:489-499. [PMID: 37121675 DOI: 10.5650/jos.ess22391] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
Currently, numerous fascinating molecular assemblies are used in food, cosmetics, and pharmaceuticals. Sugar-based amphiphiles are representative constituents of these molecular assemblies. Despite numerous studies on these generic compounds, many aspects remain unexplored even in aqueous systems. In this review, molecular assembly studies of sugar-based amphiphiles in aqueous systems are summarized. First, recent advances in molecular assembly studies, including the glassy state of lyotropic and thermotropic liquid crystalline (LC) phases, modulated crystal phases, and coagels consisting of nanofibers of alkyl β-D-glycosides, are presented. Second, research on thermotropic LC phases under desiccated conditions of trehalose fatty acid monoesters to clarify the fundamental behaviors of the glassy state and their use as stabilizers of glass-forming surfactants for pharmaceutical applications are discussed. Several effective X-ray analytical approaches are included to identify or clarify these phenomena, unknown or unsolved for a long time. Third, a comprehensive analysis of vitamin E (tocopherol)-cyclodextrin in aqueous systems is presented. Along with these topics, the importance of investigating stabilizer-free functional components, considered minor components, is highlighted. These unveiled phenomena or concepts will contribute to the development of nanoarchitectonics covering the self-assembly and selforganization of soft molecules.
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Affiliation(s)
- Shigesaburo Ogawa
- Faculty of Bio-industry, Tokyo University of Agriculture, Hokkaido-Okhotsk Campus
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11
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Arruda GM, da Silva DC, de Azevedo GS, Galvão ERVP, Rodrigues MAF, Wanderley Neto ADO. Physicochemical evaluation of the use of alcoholic micellar solutions containing nonylphenol and ethanol for the acidizing of carbonate matrices. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Pal A, Sarkar R, Karmakar K, Mondal MH, Saha B. Surfactant as an anti-corrosive agent: a review. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2022-2434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Metal corrosion has always been a serious problem in industry. There has always been a need to increase the number of possible, cost-effective corrosion inhibitors. However, many commercially available corrosion inhibitors have both high efficiency and high toxicity, which has led environmental authorities to ban their use. As a result, there is growing interest in scientific research into the use of environmentally friendly compounds. Surfactants and biocompatible corrosion inhibitors are special types of chemicals suitable for long-term industrial use. Molecules with unique hydrophilic and hydrophobic properties can be used in a wide range of applications to solve solubilisation problems and improve extraction processes. The use of surfactant-based products to prevent corrosion on metallic surfaces is a new approach in the field of chemical science. This review article addresses the mechanism of corrosion on metal surfaces and discusses in detail the use of environmentally friendly, cost-effective and readily available surfactants as corrosion inhibitors. The properties and applications of different types of surfactants are also discussed.
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Affiliation(s)
- Aniruddha Pal
- Department of Chemistry, Homogeneous Catalysis Laboratory , The University of Burdwan , Burdwan 713104 , WB , India
| | - Ratan Sarkar
- Department of Chemistry, Homogeneous Catalysis Laboratory , The University of Burdwan , Burdwan 713104 , WB , India
| | - Kripasindhu Karmakar
- Department of Chemistry, Homogeneous Catalysis Laboratory , The University of Burdwan , Burdwan 713104 , WB , India
| | - Monohar Hossain Mondal
- Chemical Sciences Laboratory , Government General Degree College , Singur , Hooghly 712409 , WB , India
| | - Bidyut Saha
- Department of Chemistry, Homogeneous Catalysis Laboratory , The University of Burdwan , Burdwan 713104 , WB , India
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Comprehensive Review on Applications of Surfactants in Vaccine Formulation, Therapeutic and Cosmetic Pharmacy and Prevention of Pulmonary Failure due to COVID-19. CHEMISTRY AFRICA 2022. [PMCID: PMC8934726 DOI: 10.1007/s42250-022-00345-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Our world is under serious threat of environmental degradation, climate change and in association with this the out breaks of diseases as pandemics. The devastating impact of the very recent COVID-19, The sharp increase in cases of Cancer, Pulmonary failure, Heart health has triggered questions for the sustainable development of pharmaceutical and medical sciences. In the search of inclusive and effective strategies to meet today’s demand, improvised methodologies and alternative green chemical, bio-based precursors are being introduced by scientists around the globe. In this extensive review we have presented the potentiality and Realtime applications of both synthetic and bio-based surfactants in bio-medical and pharmaceutical fields. For their excellent unique amphoteric nature and ability to solubilise in both organic and inorganic drugs, surfactants are one of the most potential candidates for bio-medicinal fields such as dermatology, drug delivery, anticancer treatment, surfactant therapy, vaccine formulation, personal hygiene care and many more. The self-assembly property of surfactants is a very powerful function for drug delivery systems that increases the bio-availability of the poorly aqueous soluble pharmaceutical products by influencing their solubility. Over the decades many researchers have reported the antimicrobial, anti-adhesive, antibiofilm, anti-inflammatory, antioxidant activities of surfactants regarding its utility in medicinal purposes. In some reports surfactants are found to have spermicidal and laxative activity too. This comprehensive report is targeted to enlighten the versatile applications of Surfactants in drug delivery, vaccine formulation, Cancer Treatment, Therapeutic and cosmetic Pharmaceutical Sciences and prevention of pulmonary failure due to COVID-19.
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Kumar B, Das B, Garain A, Rai S, Begum W, Inamuddin M, Mondal MH, Bhattarai A, Saha B. Diverse utilization of surfactants in coal-floatation for the sustainable development of clean coal production and environmental safety: a review. RSC Adv 2022; 12:23973-23988. [PMID: 36093245 PMCID: PMC9400654 DOI: 10.1039/d2ra02861a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/09/2022] [Indexed: 12/04/2022] Open
Abstract
The rapidly increasing modern industrial world demands a huge uninterrupted energy supply, where high-quality coal (HQC) is one of the major sources of the required energy. In this regard, a gigantic amount of solid waste including ash and toxic chemicals, such as heavy metals, nitrate and sulphur, gases including NOx and SOx are emitted during the direct incineration process of low-rank coal. About 10 Gt of CO2 and about one-fifth of total greenhouse gases in the world are emitted each year due to coal combustion in power plants, making it the single largest cause of climate change. The UN proposed that OECD countries stop producing electricity from coal by 2030 and the rest of the world by 2040. Herein, we discuss the development of modern technologies that can convert low-quality coal (LQC) into high-quality coal (HQC) to minimize the impact of fossil fuel burn, climate change, premature death of animals and all other related environmental hazards. Amongst the many established technologies, flotation pre-treatment is the most common and effective method used worldwide due to its lower energy input than other methods. In this review, we attempt to present an up-to-date understanding of the applications and utilities of surfactants in coal floating. We also demonstrate the possible modernization of this surfactant chemistry and its prospects. The rapidly increasing modern industrial world demands a huge uninterrupted energy supply, where high-quality coal (HQC) is one of the major sources of the required energy.![]()
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Affiliation(s)
- Biplab Kumar
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Bidisha Das
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Amit Garain
- Chemical Sciences Laboratory, Government General Degree College, Singur, Hooghly-712409, WB, India
| | - Summi Rai
- Department of Chemistry, M.M.A.M.C., Tribhuvan University, Biratnagar 56613, Nepal
| | - Wasefa Begum
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Md. Inamuddin
- Department of Applied Chemistry, Aligarh Muslim University, Aligarh-202002, India
| | - Monohar Hossain Mondal
- Chemical Sciences Laboratory, Government General Degree College, Singur, Hooghly-712409, WB, India
| | - Ajaya Bhattarai
- Department of Chemistry, M.M.A.M.C., Tribhuvan University, Biratnagar 56613, Nepal
| | - Bidyut Saha
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
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Tamang N, Shrestha P, Khadka B, Mondal MH, Saha B, Bhattarai A. A Review of Biopolymers' Utility as Emulsion Stabilizers. Polymers (Basel) 2021; 14:127. [PMID: 35012149 PMCID: PMC8747219 DOI: 10.3390/polym14010127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/17/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
Polysaccharides, polynucleotides, and polypeptides are basic natural polymers. They have various applications based on their properties. This review mostly discusses the application of natural polymers as emulsion stabilizers. Natural emulsion stabilizers are polymers of amino acid, nucleic acid, carbohydrate, etc., which are derived from microorganisms, bacteria, and other organic materials. Plant and animal proteins are basic sources of natural emulsion stabilizers. Pea protein-maltodextrin and lentil protein feature entrapment capacity up to 88%, (1-10% concentrated), zein proteins feature 74-89% entrapment efficiency, soy proteins in various concentrations increase dissolution, retention, and stability to the emulsion and whey proteins, egg proteins, and proteins from all other animals are applicable in membrane formation and encapsulation to stabilize emulsion/nanoemulsion. In pharmaceutical industries, phospholipids, phosphatidyl choline (PC), phosphatidyl ethanol-amine (PE), and phosphatidyl glycerol (PG)-based stabilizers are very effective as emulsion stabilizers. Lecithin (a combination of phospholipids) is used in the cosmetics and food industries. Various factors such as temperature, pH, droplets size, etc. destabilize the emulsion. Therefore, the emulsion stabilizers are used to stabilize, preserve and safely deliver the formulated drugs, also as a preservative in food and stabilizer in cosmetic products. Natural emulsion stabilizers offer great advantages because they are naturally degradable, ecologically effective, non-toxic, easily available in nature, non-carcinogenic, and not harmful to health.
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Affiliation(s)
- Nirmala Tamang
- Department of Chemistry, Mahendra Morang Adarsh Multiple Campus (M.M.A.M.C.), Tribhuvan University, Biratnagar 56613, Nepal;
| | - Pooja Shrestha
- Central Department of Biotechnology, Tribhuvan University, Kirtipur 44618, Nepal; (P.S.); (B.K.)
| | - Binita Khadka
- Central Department of Biotechnology, Tribhuvan University, Kirtipur 44618, Nepal; (P.S.); (B.K.)
| | | | - Bidyut Saha
- Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Burdwan 713104, India
| | - Ajaya Bhattarai
- Department of Chemistry, Mahendra Morang Adarsh Multiple Campus (M.M.A.M.C.), Tribhuvan University, Biratnagar 56613, Nepal;
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