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Ait-Touchente Z, Zine N, Jaffrezic-Renault N, Errachid A, Lebaz N, Fessi H, Elaissari A. Exploring the Versatility of Microemulsions in Cutaneous Drug Delivery: Opportunities and Challenges. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101688. [PMID: 37242104 DOI: 10.3390/nano13101688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/19/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023]
Abstract
Microemulsions are novel drug delivery systems that have garnered significant attention in the pharmaceutical research field. These systems possess several desirable characteristics, such as transparency and thermodynamic stability, which make them suitable for delivering both hydrophilic and hydrophobic drugs. In this comprehensive review, we aim to explore different aspects related to the formulation, characterization, and applications of microemulsions, with a particular emphasis on their potential for cutaneous drug delivery. Microemulsions have shown great promise in overcoming bioavailability concerns and enabling sustained drug delivery. Thus, it is crucial to have a thorough understanding of their formulation and characterization in order to optimize their effectiveness and safety. This review will delve into the different types of microemulsions, their composition, and the factors that affect their stability. Furthermore, the potential of microemulsions as drug delivery systems for skin applications will be discussed. Overall, this review will provide valuable insights into the advantages of microemulsions as drug delivery systems and their potential for improving cutaneous drug delivery.
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Affiliation(s)
- Zouhair Ait-Touchente
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69100 Villeurbanne, France
| | - Nadia Zine
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69100 Villeurbanne, France
| | | | - Abdelhamid Errachid
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69100 Villeurbanne, France
| | - Noureddine Lebaz
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, LAGEPP UMR 5007, 69100 Villeurbanne, France
| | - Hatem Fessi
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, LAGEPP UMR 5007, 69100 Villeurbanne, France
| | - Abdelhamid Elaissari
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69100 Villeurbanne, France
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Chaurawal N, Misra C, Abul Barkat H, Jatyan R, Chitkara D, Barkat MA, Sharma T, Singh B, Raza K. Oral sorafenib-loaded microemulsion for breast cancer: evidences from the in-vitro evaluations and pharmacokinetic studies. Sci Rep 2022; 12:13746. [PMID: 35962160 PMCID: PMC9374710 DOI: 10.1038/s41598-022-17333-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 07/25/2022] [Indexed: 11/09/2022] Open
Abstract
Sorafenib tosylate (SFB) is a multikinase inhibitor that inhibits tumour growth and proliferation for the management of breast cancer but is also associated with issues like toxicity and drug resistance. Also, being a biopharmaceutical class II (BCS II) drug, its oral bioavailability is the other challenge. Henceforth, this report intended to encapsulate SFB into a biocompatible carrier with biodegradable components, i.e., phospholipid. The microemulsion of the SFB was prepared and characterized for the surface charge, morphology, micromeritics and drug release studies. The cell viability assay was performed on 4T1 cell lines and inferred that the IC50 value of sorafenib-loaded microemulsion (SFB-loaded ME) was enhanced compared to the naïve SFB at the concentrations of about 0.75 µM. More drug was available for the pharmacological response, as the protein binding was notably decreased, and the drug from the developed carriers was released in a controlled manner. Furthermore, the pharmacokinetic studies established that the developed nanocarrier was suitable for the oral administration of a drug by substantially enhancing the bioavailability of the drug to that of the free SFB. The results bring forth the preliminary evidence for the future scope of SFB as a successful therapeutic entity in its nano-form for effective and safer cancer chemotherapy via the oral route.
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Affiliation(s)
- Nishtha Chaurawal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Charu Misra
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Harshita Abul Barkat
- Department of Pharmaceutics, College of Pharmacy, University of Hafr Al-Batin, Al Jamiah, Hafr Al Batin, 39524, Saudi Arabia
| | - Reena Jatyan
- Department of Pharmacy, Birla Institute of Technology and Science (BITS)-Pilani, Pilani Campus, Pilani, Vidya Vihar, Rajasthan, 333031, India
| | - Deepak Chitkara
- Department of Pharmacy, Birla Institute of Technology and Science (BITS)-Pilani, Pilani Campus, Pilani, Vidya Vihar, Rajasthan, 333031, India
| | - Md Abul Barkat
- Department of Pharmaceutics, College of Pharmacy, University of Hafr Al-Batin, Al Jamiah, Hafr Al Batin, 39524, Saudi Arabia
| | - Teenu Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160014, India.,Department of Pharmacy, Chandigarh College of Pharmacy, Landran, Punjab, 140307, India
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160014, India
| | - Kaisar Raza
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India.
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Lu R, Zhou Y, Ma J, Wang Y, Miao X. Strategies and Mechanism in Reversing Intestinal Drug Efflux in Oral Drug Delivery. Pharmaceutics 2022; 14:pharmaceutics14061131. [PMID: 35745704 PMCID: PMC9228857 DOI: 10.3390/pharmaceutics14061131] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Efflux transporters distributed at the apical side of human intestinal epithelial cells actively transport drugs from the enterocytes to the intestinal lumen, which could lead to extremely poor absorption of drugs by oral administration. Typical intestinal efflux transporters involved in oral drug absorption process mainly include P-glycoprotein (P-gp), multidrug resistance proteins (MRPs) and breast cancer resistance protein (BCRP). Drug efflux is one of the most important factors resulting in poor absorption of oral drugs. Caco-2 monolayer and everted gut sac are sued to accurately measure drug efflux in vitro. To reverse intestinal drug efflux and improve absorption of oral drugs, a great deal of functional amphiphilic excipients and inhibitors with the function of suppressing efflux transporters activity are generalized in this review. In addition, different strategies of reducing intestinal drugs efflux such as silencing transporters and the application of excipients and inhibitors are introduced. Ultimately, various nano-formulations of improving oral drug absorption by inhibiting intestinal drug efflux are discussed. In conclusion, this review has significant reference for overcoming intestinal drug efflux and improving oral drug absorption.
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Affiliation(s)
- Rong Lu
- Marine College, Shandong University, Weihai 264209, China; (R.L.); (Y.Z.); (J.M.); (Y.W.)
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yun Zhou
- Marine College, Shandong University, Weihai 264209, China; (R.L.); (Y.Z.); (J.M.); (Y.W.)
| | - Jinqian Ma
- Marine College, Shandong University, Weihai 264209, China; (R.L.); (Y.Z.); (J.M.); (Y.W.)
| | - Yuchen Wang
- Marine College, Shandong University, Weihai 264209, China; (R.L.); (Y.Z.); (J.M.); (Y.W.)
| | - Xiaoqing Miao
- Marine College, Shandong University, Weihai 264209, China; (R.L.); (Y.Z.); (J.M.); (Y.W.)
- Correspondence:
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Weerapol Y, Manmuan S, Chaothanaphat N, Okonogi S, Limmatvapirat C, Limmatvapirat S, Tubtimsri S. Impact of Fixed Oil on Ostwald Ripening of Anti-Oral Cancer Nanoemulsions Loaded with Amomum kravanh Essential Oil. Pharmaceutics 2022; 14:938. [PMID: 35631524 PMCID: PMC9146979 DOI: 10.3390/pharmaceutics14050938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/16/2022] [Accepted: 04/23/2022] [Indexed: 11/17/2022] Open
Abstract
Recently, essential oil from Amomum kravanh (AMO) was reported to exert anti-oral cancer effects. Although it was more effective after being loaded into nanoemulsions, AMO without an Ostwald ripening inhibitor was unable to form stable nanoemulsions because of the Ostwald ripening phenomenon. In this study, we examined the influence of Ostwald ripening inhibitors, such as fixed oils and polyethylene glycol 4000 (PEG 4000), on nanoemulsion properties prepared by a phase inversion temperature method. Several fixed oils, including virgin coconut oil (VCO), palm oil (PMO), olive oil (OLO), and PEG 4000, were evaluated, and their Ostwald ripening inhibitory effects were compared. The results suggest that the type and ratio of AMO:fixed oils influence the formation and characteristics of nanoemulsions. PEG 4000 was unable to produce nanoemulsions; however, stable nanoemulsions with small droplet sizes were observed in preparations containing OLO and VCO at an AMO:fixed oil ratio of 80:20, which may be the result of specific molecular interactions among the components. Using an MTT assay, we demonstrated that the AMO:OLO (80:20) nanoemulsion produced the most significant cytotoxic effect on oral cancer cells with a percentage of 99.68 ± 0.56%. Furthermore, the AMO:OLO 80:20 nanoemulsion inhibits metastasis and induces oral cancer cell death through the intrinsic apoptosis pathway. In conclusion, AMO nanoemulsion with anti-oral cancer activity was successfully produced by varying the amount and type of fixed oils. In the future, this discovery may lead to the development of stable nanoemulsions employing additional volatile oils.
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Affiliation(s)
- Yotsanan Weerapol
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand; (Y.W.); (S.M.); (N.C.)
| | - Suwisit Manmuan
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand; (Y.W.); (S.M.); (N.C.)
| | - Nattaya Chaothanaphat
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand; (Y.W.); (S.M.); (N.C.)
| | - Siriporn Okonogi
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chutima Limmatvapirat
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Sontaya Limmatvapirat
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Sukannika Tubtimsri
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand; (Y.W.); (S.M.); (N.C.)
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Kouchi MM, Amani H, Naseri A, Kariminezhad H. Development of an effective and safe system for bioavailability of vitamin E supplements in the stomach. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mandana Moradi Kouchi
- Department of Chemical Engineering Babol Noshirvani University of Technology Babol Iran
| | - Hossein Amani
- Department of Chemical Engineering Babol Noshirvani University of Technology Babol Iran
| | - Ali Naseri
- EOR Department Research Institute of Petroleum Industry (RIPI) Tehran Iran
| | - Hasan Kariminezhad
- Department of Physics Babol Noshirvani University of Technology Babol Iran
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Fan P, Ma Z, Partow AJ, Kim M, Shoemaker GM, Tan R, Tong Z, Nelson CD, Jang Y, Jeong KC. A novel combination therapy for multidrug resistant pathogens using chitosan nanoparticles loaded with β-lactam antibiotics and β-lactamase inhibitors. Int J Biol Macromol 2022; 195:506-514. [PMID: 34920071 DOI: 10.1016/j.ijbiomac.2021.12.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/24/2021] [Accepted: 12/05/2021] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance is one of the greatest global threats. Particularly, multidrug resistant extended-spectrum β-lactamase (ESBL)-producing pathogens confer resistance to many commonly used medically important antibiotics, especially beta-lactam antibiotics. Here, we developed an innovative combination approach to therapy for multidrug resistant pathogens by encapsulating cephalosporin antibiotics and β-lactamase inhibitors with chitosan nanoparticles (CNAIs). The four combinations of CNAIs including two cephalosporin antibiotics (cefotaxime and ceftiofur) with two β-lactamase inhibitors (tazobactam and clavulanate) were engineered as water-oil-water emulsions. Four combinations of CNAIs showed efficient antimicrobial activity against multidrug resistant ESBL-producing Enterobacteriaceae. The CNAIs showed enhanced antimicrobial activity compared to naïve chitosan nanoparticles and to the combination of cephalosporin antibiotics and β-lactamase inhibitors. Furthermore, CNAIs attached on the bacterial surface changed the permeability to the outer membrane, resulting in cell damage that leads to cell death. Taken together, CNAIs have provided promising potential for treatment of diseases caused by critically important ESBL-producing multidrug resistant pathogens.
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Affiliation(s)
- Peixin Fan
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Zhengxin Ma
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Arianna J Partow
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Miju Kim
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Grace M Shoemaker
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Ruwen Tan
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Zhaohui Tong
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Corwin D Nelson
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Yeongseon Jang
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Kwangcheol C Jeong
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA.
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7
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Yin F, Meng S, Zhao X, Wang H, Ning Y, Li Y, Chen Z. Development and in vitro and in vivo evaluations of a microemulsion formulation for the oral delivery of oxaprozin. Curr Drug Deliv 2021; 19:347-356. [PMID: 34521326 DOI: 10.2174/1567201818666210914092745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Oxaprozin is labeled as a Class II drug in the biopharmaceutical classification system, and its poor solubility in the entire gastrointestinal tract may be the main reason for its poor oral absorption capacity. OBJECTIVE The purpose of this study was to develop an oxaprozin formulation to enhance its oral absorption. METHOD Oxaprozin-loaded microemulsions were prepared using the titration method and pseudoternary phase diagram. Characterization experiments were performed on microemulsion preparations, including pH, particle size, shape, zeta potential and stability (thermodynamic, dilution, and differential scanning calorimetry). Then, the in vitro release of the microemulsion and in vivo pharmacokinetics in rats were evaluated. RESULTS Several microemulsion formulations were prepared. The optimal formulation was 15% oleoyl macrogolglycerides, 35% Tween 20/isopropanol (Km=2) and 50% distilled water. Its particle size met the requirements, and it had a spherical shape with a negatively charged surface. This microemulsion-loaded drug was applied to in vitro release and in vivo pharmacokinetic experiments at 7.47 mg/mL. In vitro release of the oxaprozin-loaded microemulsion best fit the first-order model, while the microemulsion preparation had a certain sustained release effect. In vivo pharmacokinetic experiments indicated that the microemulsion formulation significantly delayed the peak time of the blood concentration and simultaneously prolonged the half-life of drug elimination. CONCLUSION The obtained data revealed satisfactory results for this novel microemulsion of oxaprozin, which is very meaningful for clinical trials.
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Affiliation(s)
- Fangming Yin
- College of pharmacy, China Medical University, Shenyang. China
| | - Shu Meng
- Chinese medicine laboratory, Shenyang Institute for Drug Control, Shenyang. China
| | - Xin Zhao
- Joint Logistics Support Center, Pharmaceutical Instruments Supervision and Inspection Station, Shenyang. China
| | - Huining Wang
- College of pharmacy, China Medical University, Shenyang. China
| | - Yingkai Ning
- College of wuya, Shenyang Pharmaceutical University, Shenyang. China
| | - Yangdulin Li
- College of pharmacy, China Medical University, Shenyang. China
| | - Zaixing Chen
- College of pharmacy, China Medical University, Shenyang. China
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Abstract
The aim of this study was to evaluate the intensity of sonophoresis at which the skin penetration of celecoxib was enhanced and to study the combined effects of sonophoresis and microemulsion application on the dermal delivery of celecoxib. The sonophoresis intensity that provided the highest skin penetration enhancement of celecoxib was 30 Watts/cm2. However, the combination of sonophoresis and the microemulsion resulted in a decrease in celecoxib skin penetration. The results of a confocal laser scanning microscopy study using the colocalization analysis of multifluorescently labeled particles revealed that the reduction in skin penetration of celecoxib from the combination of sonophoresis and a microemulsion resulted from a decrease in transfollicular penetration, which is the major skin absorption pathway of the microemulsion.
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Affiliation(s)
- Thirapit Subongkot
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutical Technology, Burapha University, Chonburi, Thailand
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Wande DP, Cui Q, Chen S, Xu C, Xiong H, Yao J. Rediscovering Tocophersolan: A Renaissance for Nano-Based Drug Delivery and Nanotheranostic Applications. Curr Drug Targets 2021; 22:856-869. [PMID: 32525772 DOI: 10.2174/1389450121666200611140425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/29/2020] [Accepted: 04/27/2020] [Indexed: 11/22/2022]
Abstract
A unique and pleiotropic polymer, d-alpha-tocopheryl polyethylene glycol succinate (Tocophersolan), is a polymeric, synthetic version of vitamin E. Tocophersolan has attracted enormous attention as a versatile excipient in different biomedical applications including drug delivery systems and nutraceuticals. The multiple inherent properties of Tocophersolan allow it to play flexible roles in drug delivery system design, including excipients with outstanding biocompatibility, solubilizer with the ability to promote drug dissolution, drug permeation enhancer, P-glycoprotein inhibitor, and anticancer compound. For these reasons, Tocophersolan has been widely used for improving the bioavailability of numerous pharmaceutical active ingredients. Tocophersolan has been approved by stringent regulatory authorities (such as the US FDA, EMA, and PMDA) as a safe pharmaceutical excipient. In this review, the current advances in nano-based delivery systems consisting of Tocophersolan, with possibilities for futuristic applications in drug delivery, gene therapy, and nanotheranostics, were systematically curated.
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Affiliation(s)
- Dickson P Wande
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Qin Cui
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Shijie Chen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Cheng Xu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Hui Xiong
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jing Yao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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10
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Preparation of Ophthalmic Microemulsions Containing Lithuanian Royal Jelly and Their Biopharmaceutical Evaluation. Processes (Basel) 2021. [DOI: 10.3390/pr9040616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Royal jelly is a natural substance secreted by worker honeybees that possesses antioxidant, anti-inflammatory, and other biological activities. The purpose of this study was to formulate microemulsions with incorporated Lithuanian royal jelly for possible ophthalmic delivery and to evaluate the quality of the microemulsions in vitro. The oil in water type microemulsions were prepared by the oil titration method, incorporating royal jelly, surfactant, co-surfactant, oil, and water. Physicochemical characteristics of the microemulsions and the quantity of 10-hydroxy-2-decenoic acid released in vitro were assessed. The in vitro assessment of prepared microemulsions formulations was performed with the Statens Seruminstitut rabbit cornea (SIRC) cell culture model. The results revealed that the droplet size of all microemulsion formulations was 67.88–124.2 nm and the polydispersity index was lower than 0.180. In the in vitro release study, the release of 10-hydroxy-2-decenoic acid depended on the amount of royal jelly incorporated and on the ratio of surfactant and co-surfactant in formulations. The in vitro tests with the SIRC cell culture line have shown that all formulations were found non-irritating.
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Bazazi P, Hejazi SH. Spontaneous Formation of Double Emulsions at Particle-Laden Interfaces. J Colloid Interface Sci 2021; 587:510-521. [PMID: 33406465 DOI: 10.1016/j.jcis.2020.10.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/03/2020] [Accepted: 10/17/2020] [Indexed: 10/23/2022]
Abstract
HYPOTHESIS Traditionally, double emulsions are produced in the presence of both oil-soluble and water-soluble surfactants in sequential droplet formation settings or unique fluidic designs. Micelles, assemblies of surfactants in liquid mediums, can generate single emulsion droplets without requiring input energy. We hypothesize that the synergy between nanoparticles in one phase, and micelles in the other phase can spontaneously generate double emulsions. Nanoparticles can become surface-activated by adsorbing surfactants and form the second type of emulsions from the initially emulsified phase by micelles. EXPERIMENTS We design a thermodynamically-driven emulsification platform where double emulsions are spontaneously formed as soon an aqueous nanoparticle dispersion is placed in contact with an oleic micellar solution. Confocal and cryogenic-scanning electron microscopies are utilized to characterize structure and intensity of emulsions at various concentrations of silica nanoparticle and Span micelles. The rate of particle surface activation and emulsification and the amount of water intake are quantified using dynamic light scattering, dynamic interfacial tension, and density measurements. FINDINGS Nanoscale water droplets nucleate in the oil in form of swollen micelles. Over time, nanoparticles form a water-shell encapsulating the swollen-micelle rich oil phase. The gradual surfaceactivation of nanoparticles is key in self-double emulsification and controlling the emulsion intensity. We build on this new discovery and design a novel system for double emulsification. Incorporating nanoparticles into spontaneous emulsification systems opens novel routes for designing emulsion-based materials.
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Affiliation(s)
- Parisa Bazazi
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - S Hossein Hejazi
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada.
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13
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Alves LP, da Silva Oliveira K, da Paixão Santos JA, da Silva Leite JM, Rocha BP, de Lucena Nogueira P, de Araújo Rêgo RI, Oshiro-Junior JA, Damasceno BPGDL. A review on developments and prospects of anti-inflammatory in microemulsions. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.102008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Subongkot T, Sirirak T. Development and skin penetration pathway evaluation of microemulsions for enhancing the dermal delivery of celecoxib. Colloids Surf B Biointerfaces 2020; 193:111103. [PMID: 32438237 DOI: 10.1016/j.colsurfb.2020.111103] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 11/15/2022]
Abstract
This study aimed to develop a microemulsion using PEG-6 Caprylic/Capric Glycerides as a surfactant to enhance the dermal delivery of celecoxib. Confocal laser scanning microscopy (CLSM) using the colocalization technique was also used to investigate the skin penetration pathway of the microemulsion. The prepared microemulsion formulations were characterized in terms of size, surface charge, size distribution and type. The celecoxib-loaded microemulsion had particle sizes ranging from 48 to 214 nm with neutral charge and significantly increased the skin penetration of celecoxib. According to the CLSM study, the microemulsion might attach to any part of the skin before releasing the entrapped drug to penetrate the tissue. The transfollicular pathway might be the major skin penetration pathway for the microemulsion, whereas the intercellular and transcellular pathways are minor ones.
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Affiliation(s)
- Thirapit Subongkot
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi, Thailand.
| | - Thanchanok Sirirak
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi, Thailand
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