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Mosallam FM, Helmy EA, Nasser HA, El-Batal AI. Novel griseofulvin zinc nanohybrid emulsion for intensifying the antimicrobial control of dermatophytes and some opportunistic pathogens. J Mycol Med 2024; 34:101489. [PMID: 38925022 DOI: 10.1016/j.mycmed.2024.101489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/19/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Dermatophytosis is a critical sort of skin infection caused by dermatophytes. The long-term treatment of such skin infections may be improved through the application of nanotechnology. This study aimed to prepare griseofulvin zinc Nanohybrid emulsion (GF-Zn-NHE) to improve griseofulvin activity against dermatophytes and some opportunistic pathogenic yeasts and bacteria. The GF-Zn-NHE is prepared by ultra-homogenization ultra-sonication strategies and validated by UV-visible spectroscopy analysis that confirms presences of griseofulvin and Zn-NPs peaks at 265 and 360 nm, respectively. The GF-Zn-NHE has mean distribution size 50 nm and zeta potential in the range from -40 to -36 mV with no significant changes in size distribution and particle size within 120 day ageing. Fourier transform infrared spectroscopy spectrum confirmed the presence of griseofulvin and Zn-NPs stretching vibration peaks. Gamma ray has a negative influence on GF-Zn-NE production and stability. GF-Zn-NHE drug release 95% up to 24 h and 98% up to 72 h of GF was observed and Zinc 90% up to 24 h and 95% up to 72 h, respectively. High antimicrobial activity was observed with GF-Zn-NHE against dermatophytic pathogens in compare with GF, GF-NE, zinc nitrate and ketoconazole with inhibition zone ranged from 14 to 36 mm. The results have shown that the MIC value for Cryptococcus neoformans, Prophyromonas gingivalis and Pseudomonas aeruginosa is 0.125 mg ml -1 and for Trichophyton rubrum, L. bulgaricus and Escherichia coli value is 0.25 mg ml -1 and for Candida albicans, Malassezia furfur and Enterococcus faecalis is 0.5 mg ml -1 and finally 1 mg ml -1 for Streptococcus mutans. TEM of treated Cryptococcus neoformans cells with GF-Zn-NHE displayed essentially modified morphology, degradation, damage of organelles, vacuoles and other structures.
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Affiliation(s)
- Farag M Mosallam
- Drug Radiation Research Department, Microbiology Lab., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt.
| | - Eman A Helmy
- Regional Center for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo, Egypt
| | - Hebatallah A Nasser
- Microbilogy and Public health Department, Faculty of pharmacy, Heliopolis University, Egypt
| | - Ahmed I El-Batal
- Drug Radiation Research Department, Microbiology Lab., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt
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Goswami A, Ruhina Rahman SN, Ponneganti S, Gangipangi V, Vavialala H, Radhakrishnanand P, Selvaraju S, Mutheneni SR, Bharti S, Shunmugaperumal T. Intratympanic injections of emulsion-like dispersions to augment cinnarizine amount in a healthy rabbit inner ear model. Nanomedicine (Lond) 2024; 19:1717-1741. [PMID: 39041668 PMCID: PMC11418292 DOI: 10.1080/17435889.2024.2373042] [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: 03/15/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024] Open
Abstract
Aim: To investigate eutectic liquid-based emulsion-like dispersions for intratympanic injections to augment cinnarizine permeability across round window membrane in a healthy rabbit inner ear model.Methods: Two-tier systematic optimization was used to get the injection formula. The drug concentrations in perilymph and plasma were analyzed via. Ultra-performance liquid chromatography-tandem mass spectrometry method after 30-, 60-, 90- and 120-min post intratympanic injection time points in rabbits.Results: A shear-thinning behavior, immediate drug release (∼98.80%, 10 min) and higher cell viability (>97.86%, 24 h) were observed in dispersions. The cinnarizine level of 8168.57 ± 1236.79 ng/ml was observed in perilymph at 30 min post intratympanic injection in rabbits.Conclusion: The emulsion-like dispersions can augment drug permeability through round window membrane.
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Affiliation(s)
- Abhinab Goswami
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Syed Nazrin Ruhina Rahman
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Srikanth Ponneganti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Vijayakumar Gangipangi
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Hariprasad Vavialala
- Bioinformatics Group, Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana500007, India
| | - Pullapanthula Radhakrishnanand
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Sudhagar Selvaraju
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
| | - Srinivasa Rao Mutheneni
- Bioinformatics Group, Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana500007, India
| | - Shreekant Bharti
- Department of Pathology/Lab Medicine, All India Institute of Medical Sciences Patna, Phulwarisarif, Patna, Bihar801507, India
| | - Tamilvanan Shunmugaperumal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research- Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Assam781101, India
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Ruhina Rahman SN, Goswami A, Jala A, Venuganti A, Deka A, Borkar RM, Singh V, Das D, Shunmugaperumal T. Studies on cationic ocular emulsions containing bipartitioned oil droplets to codeliver cyclosporin A and etodolac. Nanomedicine (Lond) 2024; 19:1035-1050. [PMID: 38686958 PMCID: PMC11221375 DOI: 10.2217/nnm-2023-0364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/11/2024] [Indexed: 05/02/2024] Open
Abstract
Background: To prepare ocular emulsions containing bipartitioned oil droplets to entrap cyclosporin A (0.05% w/w) and etodolac (0.2% w/w) by using castor, olive and silicon oils. Methods: The physicochemical characterizations of prepared emulsions were performed. The drug's biodistribution profiles and pharmacokinetic parameters from emulsions were checked using the ultraperformance liquid chromatography-tandem mass spectrometry method in the ocular tissues of the healthy rabbit eye model. Results: The emulsions displayed 365.13 ± 7.21 nm size and 26.45 ± 2.09 mV zeta potential. The ferrying of two drugs after releasing from emulsions occurred across corneal/conjunctival tissues to enter the vitreous and sclera following a single drop administration into the rabbit's eyes. Conclusion: The dual drug-loaded emulsions were more likely to produce synergistic anti-inflammatory activity for managing moderate-to-severe dry eye disease.
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Affiliation(s)
- Syed Nazrin Ruhina Rahman
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
- Suria Eye Products Pvt. Ltd, BIO-NEST Incubation Centre, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
| | - Abhinab Goswami
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
| | - Aishwarya Jala
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
| | - Animith Venuganti
- Center for Ocular Regeneration, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Apurba Deka
- Department of Ocular Pathology, Sri Sankaradeva Nethralaya, Guwahati, Assam, 781028, India
| | - Roshan M Borkar
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
| | - Vivek Singh
- Center for Ocular Regeneration, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Dipankar Das
- Department of Ocular Pathology, Sri Sankaradeva Nethralaya, Guwahati, Assam, 781028, India
| | - Tamilvanan Shunmugaperumal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
- Suria Eye Products Pvt. Ltd, BIO-NEST Incubation Centre, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
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Ahmad I, Al-Dolaimy F, Kzar MH, Kareem AT, Mizal TL, Omran AA, Alazbjee AAA, Obaidur Rab S, Eskandar M, Alawadi AH, Alsalamy A. Microfluidic-based nanoemulsion of Ocimum basilicum extract: Constituents, stability, characterization, and potential biomedical applications for improved antimicrobial and anticancer properties. Microsc Res Tech 2024; 87:411-423. [PMID: 37877737 DOI: 10.1002/jemt.24444] [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: 07/27/2023] [Revised: 09/29/2023] [Accepted: 10/12/2023] [Indexed: 10/26/2023]
Abstract
This paper reports on the findings from a study that aimed to identify and characterize the constituents of Ocimum basilicum extract using gas chromatography-mass spectrometry (GC-MS) analysis, as well as assess the physicochemical properties and stability of nanoemulsions formulated with O. basilicum extract. The GC-MS analysis revealed that the O. basilicum extract contained 22 components, with Caryophyllene and Naringenin identified as the primary active constituents. The nanoemulsion formulation demonstrated excellent potential for use in the biomedical field, with a small and uniform particle size distribution, a negative zeta potential, and high encapsulation efficiency for the O. basilicum extract. The nanoemulsions exhibited spherical morphology and remained physically stable for up to 6 months. In vitro release studies indicated sustained release of the extract from the nanoemulsion formulation compared to the free extract solution. Furthermore, the developed nanoformulation exhibited enhanced anticancer properties against K562 cells while demonstrating low toxicity in normal cells (HEK293). The O. basilicum extract demonstrated antimicrobial activity against Pseudomonas aeruginosa, Candida albicans, and Staphylococcus epidermidis, with a potential synergistic effect observed when combined with the nanoemulsion. These findings contribute to the understanding of the constituents and potential applications of O. basilicum extract and its nanoemulsion formulation in various fields, including healthcare and pharmaceutical industries. Further optimization and research are necessary to maximize the efficacy and antimicrobial activity of the extract and its nanoformulation. RESEARCH HIGHLIGHTS: This study characterized the constituents of O. basilicum extract and assessed the physicochemical properties and stability of its nanoemulsion formulation. The O. basilicum extract contained 22 components, with Caryophyllene and Naringenin identified as the primary active constituents. The nanoemulsion formulation demonstrated excellent potential for biomedical applications, with sustained release of the extract, low toxicity, and enhanced anticancer and antimicrobial properties. The findings contribute to the understanding of the potential applications of O. basilicum extract and its nanoemulsion formulation in healthcare and pharmaceutical industries, highlighting the need for further optimization and research.
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Affiliation(s)
- Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Mazin Hadi Kzar
- College of Physical Education and Sport Sciences, Al-Mustaqbal University, Hillah, Babil, Iraq
| | - Ashwaq Talib Kareem
- College of Pharmacy, National University of Science and Technology, Dhi Qar, Iraq
| | - Thair L Mizal
- Department of Medical Engineering, Al-Esraa University College, Baghdad, Iraq
| | - Aisha A Omran
- Department of Medical Engineering, AL-Nisour University College, Baghdad, Iraq
| | | | - Safia Obaidur Rab
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mamdoh Eskandar
- Department of Obstetrics and Gynecology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Ahmed Hussien Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsalamy
- College of Technical Engineering, Imam Ja'afar Al-Sadiq University, Al-Muthanna, Iraq
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Benitez-Llano CA, Florez-Acosta OA, Velasquez-Polo DD, Mesa-Arango AC, Zapata-Zapata C. Preparation, Physicochemical Characterization, and Stability Study of Lippia origanoides Essential Oil-based Nanoemulsion as a Topical Delivery System. Pharm Nanotechnol 2024; 12:251-261. [PMID: 37581527 DOI: 10.2174/2211738511666230815155614] [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: 04/10/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 08/16/2023]
Abstract
INTRODUCTION Fungal diseases are a priority in research, development, and health care, according to the WHO, mainly due to Candida spp. Essential oils (EOs) of the genus Lippia have demonstrated broad antimicrobial biological activity. Previous studies identified the anti-Candida potential of a thymol/p-cymene chemotype EO from Lippia origanoides H.B.K coded "0018". Nanoemulsions favor the biological activity of EOs and overcome limitations such as low solubility, instability against oxidizing agents, pH, light, and low permeability. To develop, characterize, and adjust a prototype of an O/W nanoemulsion containing the "0018" EO from Lippia origanoides for its evaluation in an in vitro permeability study. METHODS Nanoemulsions were obtained using a high energy high shear method. Their particle size distribution, Z potential, viscosity, pH, encapsulation efficiency (EE), thermodynamic stability and the Turbiscan Stability Index (TSI) were evaluated. The nanoemulsion prototype was adjusted to improve performance characteristics and microbiological efficacy. Thymol was used as an analyte in the EO quantification using UHPLC-DAD. RESULTS An O/W nanoemulsion with hydrodynamic diameter <200 nm and polydispersity index <0.3, EE >95%, with TSI < 1.5, anti-Candida albicans efficiency >95% was obtained; permeable with a flow of 6.0264 μg/cm2/h and permeability coefficient of 1.3170x10-3 cm/h. CONCLUSION A pharmaceutical formulation prototype is obtained that maintains the physical and physicochemical characteristics over time. Permeability is verified in an in-vitro model. It is proposed to evaluate its antifungal activity in preclinical or clinical studies as a contribution to the treatment of topical fungal diseases caused by Candida spp., through the use of biological resources and Colombian biodiversity.
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Affiliation(s)
- Carlos Andrés Benitez-Llano
- Department of Pharmacy, Group for the Design and Formulation of Medicines, Cosmetics and Related Products (DYFOMECO), Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín, Colombia
| | - Oscar Albeiro Florez-Acosta
- Department of Pharmacy, Group for the Design and Formulation of Medicines, Cosmetics and Related Products (DYFOMECO), Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín, Colombia
| | - Darsy Dayana Velasquez-Polo
- Department of Pharmacy, Group for the Design and Formulation of Medicines, Cosmetics and Related Products (DYFOMECO), Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín, Colombia
| | - Ana Cecilia Mesa-Arango
- Department of Mycology, Clinical Epidemiology Academic Group, Faculty of Medicine, University of Antioquia, Medellín, Colombia
| | - Carolina Zapata-Zapata
- Department of Mycology, Clinical Epidemiology Academic Group, Faculty of Medicine, University of Antioquia, Medellín, Colombia
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Guo H, Yang W, Lei B, Zhao F, Guo L, Qian J. Synergistic antimicrobial effect of nisin-octanoic acid nanoemulsions against E. coli and S. aureus. Arch Microbiol 2023; 205:203. [PMID: 37086306 DOI: 10.1007/s00203-023-03545-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/05/2023] [Accepted: 04/08/2023] [Indexed: 04/23/2023]
Abstract
Food safety is a major public health concern all over the world. Therefore, the prevention of food contamination is becoming extremely crucial. In this study, an antimicrobial nanoemulsion composed of water-soluble nisin and fat-soluble octanoic acid was successfully prepared. The results showed that the average particle size and the polymer dispersity index of the nisin-octanoic acid (NOA) nanoemulsion were around 52.21 nm and 0.253, respectively. The NOA nanoemulsion required less amounts of nisin and octanoic acid to achieve the effective antimicrobial effect against Escherichia coli and Staphylococcus aureus. In addition, the growth curves of E. coli and S. aureus were determined. The OD600 of NOA nanoemulsion was significantly lower than free nisin after being incubated for 24 h (p < 0.001), indicating that the antimicrobial effect of NOA nanoemulsion was outstanding. Meanwhile, the synergistic antimicrobial property of NOA nanoemulsion against E. coli and S. aureus was significantly better than free nisin under nonacid conditions (p < 0.05). Overall, the results of this study may provide guidance for the further application of nisin in more forms.
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Affiliation(s)
- Hui Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
| | - Wei Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Bingshuang Lei
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Fengju Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Lili Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Junqing Qian
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
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Chen H, Zhang Y, Zhang Y, Liu D, Li M, Cao Y. Surface encapsulating UV filters based on self-assembly of an amphiphilic random copolymer by miniemulsion polymerization. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Wang D, Chen C, Hu X, Ju F, Ke Y. Enhancing the Properties of Water-Soluble Copolymer Nanocomposites by Controlling the Layer Silicate Load and Exfoliated Nanolayers Adsorbed on Polymer Chains. Polymers (Basel) 2023; 15:polym15061413. [PMID: 36987194 PMCID: PMC10056508 DOI: 10.3390/polym15061413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/14/2023] Open
Abstract
Novel polymer nanocomposites of methacryloyloxy ethyl dimethyl hexadecyl ammonium bromide-modified montmorillonite (O-MMt) with acrylamide/sodium p-styrene sulfonate/methacryloyloxy ethyl dimethyl hexadecyl ammonium bromide (ASD/O-MMt) were synthesized via in situ polymerization. The molecular structures of the synthesized materials were confirmed using Fourier-transform infrared and 1H-nuclear magnetic resonance spectroscopy. X-ray diffractometry and transmission electron microscopy revealed well-exfoliated and dispersed nanolayers in the polymer matrix, and scanning electron microscopy images revealed that the well-exfoliated nanolayers were strongly adsorbed on the polymer chains. The O-MMt intermediate load was optimized to 1.0%, and the exfoliated nanolayers with strongly adsorbed chains were controlled. The properties of the ASD/O-MMt copolymer nanocomposite, such as its resistance to high temperature, salt, and shear, were significantly enhanced compared with those obtained under other silicate loads. ASD/1.0 wt% O-MMt enhanced oil recovery by 10.5% because the presence of well-exfoliated and dispersed nanolayers improved the comprehensive properties of the nanocomposite. The large surface area, high aspect ratio, abundant active hydroxyl groups, and charge of the exfoliated O-MMt nanolayer also provided high reactivity and facilitated strong adsorption onto the polymer chains, thereby endowing the resulting nanocomposites with outstanding properties. Thus, the as-prepared polymer nanocomposites demonstrate significant potential for oil-recovery applications.
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Jennings J, Webster-Aikman RR, Ward-O’Brien N, Xie A, Beattie DL, Deane OJ, Armes SP, Ryan AJ. Hydrocarbon-Based Statistical Copolymers Outperform Block Copolymers for Stabilization of Ethanol-Water Foams. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39548-39559. [PMID: 35984897 PMCID: PMC9437873 DOI: 10.1021/acsami.2c09910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Well-defined block copolymers have been widely used as emulsifiers, stabilizers, and dispersants in the chemical industry for at least 50 years. In contrast, nature employs amphiphilic proteins as polymeric surfactants whereby the spatial distribution of hydrophilic and hydrophobic amino acids within the polypeptide chains is optimized for surface activity. Herein, we report that polydisperse statistical copolymers prepared by conventional free-radical copolymerization can provide superior foaming performance compared to the analogous diblock copolymers. A series of predominantly (meth)acrylic comonomers are screened to identify optimal surface activity for foam stabilization of aqueous ethanol solutions. In particular, all-acrylic statistical copolymers comprising trimethylhexyl acrylate and poly(ethylene glycol) acrylate, P(TMHA-stat-PEGA), confer strong foamability and also lower the surface tension of a range of ethanol-water mixtures to a greater extent than the analogous block copolymers. For ethanol-rich hand sanitizer formulations, foam stabilization is normally achieved using environmentally persistent silicone-based copolymers or fluorinated surfactants. Herein, the best-performing fully hydrocarbon-based copolymer surfactants effectively stabilize ethanol-rich foams by a mechanism that resembles that of naturally-occurring proteins. This ability to reduce the surface tension of low-surface-energy liquids suggests a wide range of potential commercial applications.
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Zhao Y, Peng F, Ke Y. Design and characterization of oil-in-water nanoemulsion for enhanced oil recovery stabilized by amphiphilic copolymer, nonionic surfactant, and LAPONITE® RD. RSC Adv 2021; 11:1952-1959. [PMID: 35424192 PMCID: PMC8693706 DOI: 10.1039/d0ra06080a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/24/2020] [Indexed: 11/21/2022] Open
Abstract
The application of nanotechnology in the oil and gas industry has attracted widespread attention in recent years. This study aims to develop a nanoemulsion (NE) for use in enhanced oil recovery (EOR). The NE stabilized by anion amphiphilic copolymer, nonionic surfactant (Brij30) and modified LAPONITE® RD was prepared by the phase inversion composition (PIC) method. The appearance of the emulsion is translucent and the average particle size is less than 60 nm. The micromorphology and interfacial tension (IFT) are examined using transmission electron microscopy (TEM) and a spinning drop IFT meter, respectively. The NE possesses good stability evaluated by conductivity and particle size tests. The absolute value of the zeta potential of NE increases when modified LAPONITE® RD is added. In a core flooding experiment with an artificial sandstone core, the NE flooding increased oil recovery by 23.53% compared to water flooding.
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Affiliation(s)
- Yi Zhao
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum Beijing 102249 China
| | - Fangfang Peng
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum Beijing 102249 China
| | - Yangchuan Ke
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum Beijing 102249 China
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Zhao Y, Ke Y, Hu X, Peng F, Yu C, Xing L. Synthesis and switchable behavior of a CO2 responsive polymeric surfactant acting as emulsifier. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1699424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yi Zhao
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
| | - Yangchuan Ke
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
| | - Xu Hu
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
| | - Fangfang Peng
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
| | - Chengcheng Yu
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
| | - Liang Xing
- CNPC Nanochemistry Key Laboratory, College of Science, China University of Petroleum, Beijing, China
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