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Aina M, Baillon F, Sescousse R, Sanchez-Ballester NM, Begu S, Soulairol I, Sauceau M. Assessing texturometer-derived rheological data for predicting the printability of gummy formulations in SSE 3D printing. Int J Pharm 2024; 662:124471. [PMID: 39019295 DOI: 10.1016/j.ijpharm.2024.124471] [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: 06/10/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
Semi-solid extrusion (SSE), an additive manufacturing technique, is gaining significant attention for the printing of thermosensitive drugs. Hydrogels, one of the materials used in SSE, have emerged as a focus in pharmaceutical applications due to their ability to control the release of therapeutic agents spatially and temporally. Understanding the non-Newtonian flow and evaluating the mechanical properties of hydrogel-based materials during extrusion is, however, essential for successful 3D printing. Thus, users often find themselves conducting both rheological and texture profile analyses to characterize the hydrogel. While texturometers are primarily used to evaluate mechanical or sensory properties, viscosity measurements are typically performed using rotational rheometers or viscometers. In this study, we demonstrated how comparable rheological information can be obtained using a texturometer as a capillary rheometer. By preparing similar formulations to a previous study, we compared the rheological data obtained from a rotational rheometer to the data obtained from the texturometer. The means of the parameters obtained by fitting the data from both techniques to the power law model showed insignificant differences. In addition, three clusters were formed based on the flow behaviour and printability of the samples using principal component analysis. Furthermore, the printability was predicted using the samples' consistency and flow indexes, and the regression coefficient was 96.62 and 60.03% for capillary and rotational flow parameters, respectively. This approach thus holds the potential to streamline the time, expertise and equipment required for the rheological characterization of hydrogels for applications in semi-solid extrusion.
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Affiliation(s)
- Morenikeji Aina
- RAPSODEE, IMT Mines Albi, CNRS, University of Toulouse, 81013 Albi, France.
| | - Fabien Baillon
- RAPSODEE, IMT Mines Albi, CNRS, University of Toulouse, 81013 Albi, France
| | - Romain Sescousse
- RAPSODEE, IMT Mines Albi, CNRS, University of Toulouse, 81013 Albi, France
| | - Noelia M Sanchez-Ballester
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France; Department of Pharmacy, Nîmes University Hospital, Nîmes, France
| | - Sylvie Begu
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Ian Soulairol
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France; Department of Pharmacy, Nîmes University Hospital, Nîmes, France
| | - Martial Sauceau
- RAPSODEE, IMT Mines Albi, CNRS, University of Toulouse, 81013 Albi, France
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2
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Ahmad K, Khan S, Chen P, Yang X, Fan C, Fan Y, Hao L, Tian Q, Tu C, Hou H. Enhancing mucoadhesion: Exploring rheological parameters and texture profile in starch solutions, with emphasis on micro-nanofiber influence. Int J Biol Macromol 2024; 275:133392. [PMID: 38917914 DOI: 10.1016/j.ijbiomac.2024.133392] [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: 01/20/2024] [Revised: 06/01/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
This comprehensive analysis explores the rheological parameters and texture profile analysis (TPA) to effect starch solutions for mucoadhesion and assess the impact of micro-nanofibers (MNFs) on these parameters. The surface chemistry of all six samples was examined through the Fourier transform infrared (FTIR) technique. The spectrum of FTIR was recorded in the range of 500-4000 cm-1. The viscosity of different pHs (2-11) and temperatures (20-70 °C) of verious starches, potato, corn, and rice, decreased with the increasing of shear rate, exhibiting shear thinning behavior, which conformed to pseudoplastic fluid.The combination of chitosan and collagen MNFs significantly changed rheological properties, and the sample with the addtion of 1500 µL CC-MNF exhibited a greater viscosity of 59.8 mPa·s at a shear rate of 1.49 s-1. Potato starch emerged as a strong candidate for mucoadhesion due to its low hardness (4.62 ± 0.31 N), high adhesion (0.0322 ± 0.0053 mJ), cohesiveness (0.37 ± 0.03 Ratio), low chewiness (0.66 ± 0.12 mJ), and gumminess (1.69 ± 0.23 N). The inclusion of MNFs, especially collagen/chitosan MNFs showed the potential to further enhance adhesion.
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Affiliation(s)
- Khurshid Ahmad
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, Shandong Province 266237, PR China
| | - Suleman Khan
- Department of Physics, NFC Institute of Engineering and Technology, Multan 60000, Pakistan
| | - Peng Chen
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Xia Yang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Chaozhong Fan
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Yan Fan
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Li Hao
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Qiaoji Tian
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Chaoxin Tu
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Hu Hou
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, Shandong Province 266237, PR China; Sanya Oceanographic Institution, Ocean University of China, Sanya, Hainan Province, 572024, PR China.
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3
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Imtiaz S, Sohail S, Din FU, Ali Z, Batool S, Malik M, Nawaz A, Alamri AH, Lahiq AA, Alsharif ST, Asiri A. Formulation and statistical optimization of letrozole loaded nanotransferosomal gel for tumor targeting. Pharm Dev Technol 2024:1-16. [PMID: 39023747 DOI: 10.1080/10837450.2024.2382437] [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: 04/22/2024] [Revised: 07/16/2024] [Accepted: 07/16/2024] [Indexed: 07/20/2024]
Abstract
Letrozole (LTZ) is used as first-line treatment for hormone-positive breast cancer (BC) in postmenopausal women. However, its poor aqueous solubility and permeability have reduced its clinical efficacy. Herein, we developed LTZ-nanotransferosomes (LTZ-NT) to address above mentioned issues. The LTZ-NT were optimized statistically using Design Expert® followed by their characterization via dynamic light scattering (DLS), Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and Differential scanning calorimetry (DSC). The optimized LTZ-NT was incorporated into 1% chitosan-gel to develop LTZ-NTG. Moreover, in vitro drug release and ex vivo permeation of LTZ-NTG were performed and compared with LTZ-dispersion and LTZ-NT. Additionally, skin irritability and histopathology of LTZ-NTG were investigated. Furthermore, in vitro antitumor study of LTZ-NTG was investigated in BC cell lines. The optimized LTZ-NT showed suitable zeta potential (30.4 mV), spherical size (162.5 nm), and excellent entrapment efficiency (88.04%). Moreover, LTZ-NT exhibited suitable thermal behavior and no interactions among its excipients. In addition, LTZ-NTG had an optimal pH (5.6) and a suitable viscosity. A meaningfully sustained release and improved permeation of LTZ was observed from LTZ-NTG. Additionally, LTZ-NTG showed significantly enhanced cell death of MCF-7 and MCC-7 cells. It can be concluded that LTZ-NTG has the potential to deliver chemotherapeutic agents for possible treatment of BC.
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Affiliation(s)
- Sara Imtiaz
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Saba Sohail
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Fakhar Ud Din
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- College of Pharmacy, Hanyang University, Ansan, South Korea
| | - Zakir Ali
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sibgha Batool
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Maimoona Malik
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Asif Nawaz
- Faculty of Pharmacy, Gomal Center of Pharmaceutical Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - Ali H Alamri
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Ahmed A Lahiq
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran, Saudi Arabi
| | - Shaker T Alsharif
- Pharmaceutical Science Department, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Abdullah Asiri
- Department of Pharmaceutics, Faculty of Pharmacy, Al-Baha University, Al-Baha, Saudi Arabia
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Yılmaz Usta D, Teksin ZS, Tugcu-Demiroz F. Evaluation of Emulgel and Nanostructured Lipid Carrier-Based Gel Formulations for Transdermal Administration of Ibuprofen: Characterization, Mechanical Properties, and Ex-Vivo Skin Permeation. AAPS PharmSciTech 2024; 25:124. [PMID: 38822143 DOI: 10.1208/s12249-024-02831-9] [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: 01/01/2024] [Accepted: 05/03/2024] [Indexed: 06/02/2024] Open
Abstract
In transdermal applications of nonsteroidal anti-inflammatory drugs, the rheological and mechanical properties of the dosage form affect the performance of the drug. The aim of this study to develop emulgel and nanostructured lipid carrier NLC-based gel formulations containing ibuprofen, evaluate their mechanical properties, bioadhesive value and ex-vivo rabbit skin permeability. All formulations showed non-Newtonian pseudoplastic behavior and their viscosity values are suitable for topical application. The particle size of the nanostructured lipid carrier system was found to be 468 ± 21 nm, and the encapsulation efficiency was 95.58 ± 0.41%. According to the index of viscosity, consistency, firmness, and cohesiveness values obtained as a result of the back extrusion study, E2 formulation was found to be more suitable for transdermal application. The firmness and work of shear values of the E2 formulation, which has the highest viscosity value, were also found to be the highest and it was chosen as the most suitable formulation in terms of the spreadability test. The work of bioadhesion values of NLC-based gel and IBU-loaded NLC-based gel were found as 0.226 ± 0.028 and 0.181 ± 0.006 mJ/cm2 respectively. The percentages of IBU that penetrated through rabbit skin from the Ibuactive-Cream and the E2 were 87.4 ± 2.11% and 93.4 ± 2.72% after 24 h, respectively. When the penetration of ibuprofen through the skin was evaluated, it was found that the E2 formulation increased penetration due to its lipid and nanoparticle structure. As a result of these findings, it can be said that the NLC-based gel formulation will increase the therapeutic efficacy and will be a good alternative transdermal formulation.
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Affiliation(s)
- Duygu Yılmaz Usta
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler, 06330, Ankara, Turkey
| | - Zeynep Safak Teksin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler, 06330, Ankara, Turkey
| | - Fatmanur Tugcu-Demiroz
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler, 06330, Ankara, Turkey.
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Fonseca-Santos B, Cazarin CA, da Silva PB, Dos Santos KP, da Rocha MCO, Báo SN, De-Souza MM, Chorilli M. Intranasal in situ gelling liquid crystal for delivery of resveratrol ameliorates memory and neuroinflammation in Alzheimer's disease. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023:102689. [PMID: 37156330 DOI: 10.1016/j.nano.2023.102689] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/03/2023] [Accepted: 04/26/2023] [Indexed: 05/10/2023]
Abstract
Alzheimer's disease (AD) is an illness that affects people aged 65 or older and affects around 6.5 million in the United States. Resveratrol is a chemical obtained from natural products and it exhibits biological activity based on inhibiting the formation, depolymerization of the amyloid, and decreasing neuroinflammation. Due to the insolubility of this compound; its incorporation in surfactant-based systems was proposed to design an intranasal formulation. A range of systems has been produced by mixing oleic acid, CETETH-20 and water. Polarised light microscopy (PLM), small angle x-ray scattering (SAXS) and transmission electron microscopy (TEM) confirm the initial liquid formulation (F) presented as microemulsion (ME). After dilution, the gelled systems were characterized as hexagonal mesophase and they showed feasibility proprieties. Pharmacological assays performed after intranasal administration showed the ability to improve learning and memory in animals, as well as remission of neuroinflammation via inhibition of interleukin.
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Affiliation(s)
- Bruno Fonseca-Santos
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, São Paulo 14801-902, Brazil; Federal University of Bahia (UFBA), Health Sciences Institute, Department of Biotechnology, Salvador, Bahia 40170-115, Brazil.
| | - Camila André Cazarin
- University of Vale do Itajaí (UNIVALI), Postgraduate in Pharmaceutical Sciences, Itajaí, Santa Catarina 88302-901, Brazil
| | - Patrícia Bento da Silva
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia (UnB), Brasilia, Federal District 70910-900, Brazil
| | - Kaio Pini Dos Santos
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, São Paulo 14801-902, Brazil
| | - Márcia Cristina Oliveira da Rocha
- Microscopy and Microanalysis Laboratory, Department of Cell Biology, Institute of Biological Sciences, University of Brasilia (UnB), Brasilia, Federal District 70910-900, Brazil
| | - Sônia Nair Báo
- Microscopy and Microanalysis Laboratory, Department of Cell Biology, Institute of Biological Sciences, University of Brasilia (UnB), Brasilia, Federal District 70910-900, Brazil
| | - Márcia Maria De-Souza
- University of Vale do Itajaí (UNIVALI), Postgraduate in Pharmaceutical Sciences, Itajaí, Santa Catarina 88302-901, Brazil
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, São Paulo 14801-902, Brazil.
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6
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Ferreira I, Marques AC, Costa PC, Amaral MH. Effects of Steam Sterilization on the Properties of Stimuli-Responsive Polymer-Based Hydrogels. Gels 2023; 9:385. [PMID: 37232977 PMCID: PMC10217074 DOI: 10.3390/gels9050385] [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: 03/18/2023] [Revised: 04/23/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
Hydrogels based on stimuli-responsive polymers can change their characteristics in response to small variations in environmental conditions, such as temperature, pH, and ionic strength, among others. In the case of some routes of administration, such as ophthalmic and parenteral, the formulations must meet specific requirements, namely sterility. Therefore, it is essential to study the effect of the sterilization method on the integrity of smart gel systems. Thus, this work aimed to study the effect of steam sterilization (121 °C, 15 min) on the properties of hydrogels based on the following stimuli-responsive polymers: Carbopol® 940, Pluronic® F-127, and sodium alginate. The properties of the prepared hydrogels-pH, texture, rheological behavior, and sol-gel phase transition-were evaluated to compare and identify the differences between sterilized and non-sterilized hydrogels. The influence of steam sterilization on physicochemical stability was also investigated by Fourier-transform infrared spectroscopy and differential scanning calorimetry. The results of this study showed that the Carbopol® 940 hydrogel was the one that suffered fewer changes in the studied properties after sterilization. By contrast, sterilization was found to cause slight changes in the Pluronic® F-127 hydrogel regarding gelation temperature/time, as well as a considerable decrease in the viscosity of the sodium alginate hydrogel. There were no considerable differences in the chemical and physical characteristics of the hydrogels after steam sterilization. It is possible to conclude that steam sterilization is suitable for Carbopol® 940 hydrogels. Contrarily, this technique does not seem adequate for the sterilization of alginate or Pluronic® F-127 hydrogels, as it could considerably alter their properties.
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Affiliation(s)
- Inês Ferreira
- UCIBIO-Applied Molecular Biosciences Unit, MEDTECH-Medicines and Healthcare Products, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (I.F.); (P.C.C.)
- Associate Laboratory Institute for Health and Bioeconomy—i4HB, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Ana Camila Marques
- UCIBIO-Applied Molecular Biosciences Unit, MEDTECH-Medicines and Healthcare Products, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (I.F.); (P.C.C.)
- Associate Laboratory Institute for Health and Bioeconomy—i4HB, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Paulo Cardoso Costa
- UCIBIO-Applied Molecular Biosciences Unit, MEDTECH-Medicines and Healthcare Products, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (I.F.); (P.C.C.)
- Associate Laboratory Institute for Health and Bioeconomy—i4HB, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Helena Amaral
- UCIBIO-Applied Molecular Biosciences Unit, MEDTECH-Medicines and Healthcare Products, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (I.F.); (P.C.C.)
- Associate Laboratory Institute for Health and Bioeconomy—i4HB, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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7
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Jones DS, Yu T, Li S, Pick L, Andrews GP. A new mathematical model derived from transient (creep) analysis to estimate the vaginal retention of semi-solid dosage forms. Int J Pharm 2023; 632:122521. [PMID: 36563794 DOI: 10.1016/j.ijpharm.2022.122521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 12/10/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
The performance of vaginal drug delivery systems is dependent on their retention. This study presents a novel mathematical method to estimate the vaginal retention of semi-solids. Using creep analysis, the elastic and residual compliances are determined from the discrete retardation spectrum and used to determine the retention times (RT), defined as the time required for the formulations to enter the terminal viscous zone of deformation and hence flow. RT of commercially available products (CAP) and selected prototype formulations were determined, the estimated RT of CAP broadly aligning with their prescribed clinical usage. Candidate formulations composed of hydroxyethylcellulose (HEC, 3%/5%w/w) and polyacrylic acid (PAA, 1%/3%w/w) were manufactured using, and further diluted with simulant vaginal fluid (SVF) or simulant seminal fluid (SSF) and their RT subsequently determined. Increasing polymer concentration and pH enhanced the estimated RT whereas dilution reduced RT. Notably, the formulation composed of 5%HEC/3% PAA (SSF) maintained its RT on dilution due to swelling of suspended PAA particles, thus representing a strategy to develop vaginal semi-solids that are resistant to dilution and hence removal. The mathematical model described is reproducible, straightforward to use and is recommended as a tool in formulation development to estimate the retention of vaginal semi-solids.
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Affiliation(s)
- David S Jones
- School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom.
| | - Tao Yu
- School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
| | - Shu Li
- School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
| | - Louise Pick
- School of Mechanical and Aerospace Engineering, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Gavin P Andrews
- School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
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8
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Fernandes AS, de Souza Ferreira SB, Bruschi ML. Design as strategy for evaluation of the mechanical properties of binary mixtures composed of poly(methyl vinyl ether-alt-maleic anhydride) and Pluronic F127 for biomedical applications. J Mech Behav Biomed Mater 2023; 138:105608. [PMID: 36516545 DOI: 10.1016/j.jmbbm.2022.105608] [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: 09/18/2022] [Revised: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The synergism between thermoresponsive and bioadhesive polymers can lead to the optimization of materials with enhanced mechanical and bioadhesive properties. Quality by Design can assure the understanding and control of formulation variables. In this approach, Design of Experiment has been widely utilized as an important strategy. Poly(methyl vinyl ether-alt-maleic anhydride) (PVMMA) is a bioadhesive polymer and Pluronic F127 (PF127) shows thermoresponsiveness. The association of these two polymers has been poorly investigated. The aim of this work was to study the mechanical, bioadhesive and rheological properties of polymer mixtures composed of PVMMA and PF127, in order to select the best conditions and formulations for biomedical applications. Textural properties (hardness, compressibility, adhesiveness, cohesiveness and elasticity), softness index, bioadhesion and rheological characteristics (flow and viscoelasticity) showed that 17.5-20% (w/w) PF127-polymer mixtures displayed improved values of the parameters. However, the rheological interaction parameter showed low synergism, due to the polymers' characteristics and system organization. The formulations displayed gelation temperatures suitable for administration, with improved bioadhesive properties mainly at 34 °C and suggests the formulations can be used for biomedical applications. DoE constituted an important tool to investigate these systems showing the main effects that significantly influence the binary mixtures.
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Affiliation(s)
- Ariane Stephanie Fernandes
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Sabrina Barbosa de Souza Ferreira
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Marcos Luciano Bruschi
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil.
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9
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The influence of different bioadhesive polymers on physicochemical properties of thermoresponsive emulgels containing Amazonian andiroba oil. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Khan MM, Zaidi SS, Siyal FJ, Khan SU, Ishrat G, Batool S, Mustapha O, Khan S, Din FU. Statistical optimization of co-loaded rifampicin and pentamidine polymeric nanoparticles for the treatment of cutaneous leishmaniasis. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Design of an Emulgel for Psoriasis Focused on Patient Preferences. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Adherence to topical treatments is low and is known to be influenced by the vehicle properties. Betamethasone dipropionate (BD) is an anti-inflammatory steroid, used in psoriasis treatment in the form of an ointment, cream, or solution. The aim of this work was to develop a new vehicle for BD, focusing on the preferences of patients with psoriasis as a strategy to improve treatment adherence. Two vehicles with an aqueous external phase were explored: an emulgel and a hydrogel based on a cyclodextrin inclusion complex used to improve the aqueous solubility of BD. Since BD solubilization was not fully achieved in the hydrogel, only the emulgel was selected for further characterization. This new vehicle (emulgel) is characterized by its white, shiny appearance and good spreading properties. In comparison with petrolatum, a lower residue, higher evaporation rate, lower stickiness, and reduced ability to stain polyester fabric were observed. This vehicle also showed shear thinning behavior. The impact of this new vehicle on adherence to topical treatments should be further confirmed in clinical settings.
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12
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Design of emulgel platforms for local propolis delivery: The influence of type and concentration of carbomer. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Nair AB, Shah J, Jacob S, Al-Dhubiab BE, Sreeharsha N, Morsy MA, Gupta S, Attimarad M, Shinu P, Venugopala KN. Experimental design, formulation and in vivo evaluation of a novel topical in situ gel system to treat ocular infections. PLoS One 2021; 16:e0248857. [PMID: 33739996 PMCID: PMC7978349 DOI: 10.1371/journal.pone.0248857] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/06/2021] [Indexed: 12/30/2022] Open
Abstract
In situ gels have been extensively explored as ocular drug delivery system to enhance bioavailability and efficacy. The objective of present study was to design, formulate and evaluate ion-activated in situ gel to enhance the ocular penetration and therapeutic performance of moxifloxacin in ophthalmic delivery. A simplex lattice design was utilized to examine the effect of various factors on experimental outcomes of the in situ gel system. The influence of polymers (independent variables) such as gellan gum (X1), sodium alginate (X2), and HPMC (X3) on gel strength, adhesive force, viscosity and drug release after 10 h (Q10) were assessed. Selected formulation (MH7) was studied for ex vivo permeation, in vivo irritation and pharmacokinetics in rabbits. Data revealed that increase in concentration of polymers led to higher gel strength, adhesive force and viscosity, however, decreases the drug release. MH7 exhibited all physicochemical properties within acceptable limits and was stable for 6 months. Release profile of moxifloxacin from MH7 was comparable to the check point batches and followed Korsmeyer-Peppas matrix diffusion-controlled mechanism. Ocular irritation study signifies that selected formulation is safe and non-irritant for ophthalmic administration. In vivo pharmacokinetics data indicates significant improvement of moxifloxacin bioavailability (p < 0.0001) from MH7, as evidenced by higher Cmax (727 ± 56 ng/ml) and greater AUC (2881 ± 108 ng h/ml), when compared with commercial eye drops (Cmax; 503 ± 85 ng/ml and AUC; 978 ± 86 ng h/ml). In conclusion, developed in situ gel system (MH7) could offers a more effective and extended ophthalmic therapy of moxifloxacin in ocular infections when compared to conventional eye drops.
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Affiliation(s)
- Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
- * E-mail:
| | - Jigar Shah
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | - Bandar E. Al-Dhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Nagaraja Sreeharsha
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Pharmaceutics, Vidya Siri College of Pharmacy, Bangalore, India
| | - Mohamed A. Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
- Faculty of Medicine, Department of Pharmacology, Minia University, El-Minia, Egypt
| | - Sumeet Gupta
- Department of Pharmacology, M. M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, India
| | - Mahesh Attimarad
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Pottathil Shinu
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Katharigatta N. Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Biotechnology and Food Technology, Durban University of Technology, Durban, South Africa
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Krambeck K, Silva V, Silva R, Fernandes C, Cagide F, Borges F, Santos D, Otero-Espinar F, Lobo JMS, Amaral MH. Design and characterization of Nanostructured lipid carriers (NLC) and Nanostructured lipid carrier-based hydrogels containing Passiflora edulis seeds oil. Int J Pharm 2021; 600:120444. [PMID: 33713760 DOI: 10.1016/j.ijpharm.2021.120444] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/27/2022]
Abstract
This study aims to design and characterize Nanostructured lipid carriers (NLC) and Nanostructured lipid carrier-based hydrogels with Passiflora edulis seeds oil, a by-product from Madeira Island food industry. NLC were prepared by the ultrasonication technique, using passion fruit seeds oil as a liquid lipid and glyceryl distearate as a solid lipid. These NLC were then gelled with Poly (acrylic acid). Long-term stability studies were conducted with NLC and NLC-based hydrogels stored for 12 months. The following tests were performed: morphology, encapsulation efficiency, particle size analysis, polydispersity index analysis, zeta potential, pH measurement, color analysis, viscosity studies, texture analysis, in vitro occlusion test, ex vivo skin penetration study, tyrosinase inhibition activity, in vitro skin permeation experiments and in vitro cytotoxicity studies. The developed NLC had spherical shape and narrow particle sizes distribution with mean sizes in the range of 150 nm and PDI below 0.3, Zeta potential values around -30 mV and high Encapsulation efficiency. The tyrosinase inhibitory activity and skin retention of the nanoparticles was superior to that of the non-encapsulated oil. The developed formulations did not show cytotoxicity towards HaCat cells and presented suitable viscosity and texture properties for skin application, proving to be good candidates as depigmenting agent.
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Affiliation(s)
- Karolline Krambeck
- MedTech, UCIBIO-REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
| | - Vera Silva
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Renata Silva
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Carlos Fernandes
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Fernando Cagide
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Fernanda Borges
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Delfim Santos
- MedTech, UCIBIO-REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Francisco Otero-Espinar
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José Manuel Sousa Lobo
- MedTech, UCIBIO-REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Maria Helena Amaral
- MedTech, UCIBIO-REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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15
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Rosseto HC, de Toledo LDAS, Said dos Santos R, de Francisco LMB, Vecchi CF, Esposito E, Cortesi R, Bruschi ML. Design of propolis-loaded film forming systems for topical administration: The effect of acrylic acid derivative polymers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114514] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Oppong F, Li Z, Fakhrabadi EA, Raorane T, Giri PM, Liberatore MW, Sarver JG, Trabbic CJ, Hosier CE, Erhardt PW, Maltese WA, Nesamony J. Investigating the Potential to Deliver and Maintain Plasma and Brain Levels of a Novel Practically Insoluble Methuosis Inducing Anticancer Agent 5-Methoxy MOMIPP Through an Injectable In Situ Forming Thermoresponsive Hydrogel Formulation. J Pharm Sci 2020; 109:2719-2728. [PMID: 32473210 DOI: 10.1016/j.xphs.2020.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/16/2020] [Accepted: 05/18/2020] [Indexed: 11/26/2022]
Abstract
A new indole based chalcone molecule MOMIPP induced methuosis mediated cell death in gliobastoma and other cancer cell lines. But the drug was insoluble in water and had a very short plasma half-life. The purpose of this work was to develop a formulation that can provide sustained levels of MOMIPP in vivo. Initial studies established drug solubility in various solvents. N-methyl pyrrolidone (NMP) was determined as an excellent solvent for the drug. Subsequently a poloxamer-407 based thermoreversible gel containing NMP was used to develop the formulation. Rheological studies were performed via oscillatory temperature mode, continuous shear analysis, and oscillatory frequency mode experiments. The mechanical properties of the formulations were tested using a texture profile analyzer. The gelation temperature and time of formulations increased with increasing amounts of NMP. However, the viscosity at 20 °C and storage modulus decreased as the amount of NMP increased. Characterization studies helped to identify the gel formulation that was used to administer the drug orally, sub-cutaneously, and intra-peritoneally. When the gel was given intraperitoneally the target plasma and brain levels of over 5 μM was maintained for about 8 h. Thus, a thermoreversible gel formulation that can deliver MOMIPP in animal studies was successfully developed.
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Affiliation(s)
- Frank Oppong
- Division of Industrial Pharmacy, Department of Pharmacy Practice, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Zehui Li
- Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Ehsan Akbari Fakhrabadi
- Department of Chemical Engineering, College of Engineering, University of Toledo, Toledo, Ohio 43614
| | - Tanvi Raorane
- Division of Industrial Pharmacy, Department of Pharmacy Practice, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Paras M Giri
- Division of Industrial Pharmacy, Department of Pharmacy Practice, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Matthew W Liberatore
- Department of Chemical Engineering, College of Engineering, University of Toledo, Toledo, Ohio 43614
| | - Jeffrey G Sarver
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Christopher J Trabbic
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Corey E Hosier
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Paul W Erhardt
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - William A Maltese
- Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo HSC, Toledo, Ohio 43614
| | - Jerry Nesamony
- Division of Industrial Pharmacy, Department of Pharmacy Practice, College of Pharmacy and Pharmaceutical Sciences, University of Toledo HSC, Toledo, Ohio 43614.
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Zakir F, Ahmad A, Farooq U, Mirza MA, Tripathi A, Singh D, Shakeel F, Mohapatra S, Ahmad FJ, Kohli K. Design and development of a commercially viable in situ nanoemulgel for the treatment of postmenopausal osteoporosis. Nanomedicine (Lond) 2020; 15:1167-1187. [PMID: 32370601 DOI: 10.2217/nnm-2020-0079] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: To investigate the potential of a thermosensitive intranasal formulation of raloxifene hydrochloride (RH) for systemic delivery with the possibility of enhanced bioavailability and anti-osteoporotic efficacy. Methods: In this work, a commercially scalable nanoemulsion in thermosensitive gel, aligned with better clinical acceptability, has been developed and evaluated. Results: A significant 7.4-fold improvement in bioavailability of RH was recorded when compared with marketed tablets. Likewise, in vivo pharmacodynamics studies suggested 162% enhanced bone density and significantly improved biochemical markers compared with per-oral marketed tablet. Conclusion: The formulation, being safe and patient compliant, successfully tuned anti-osteoporotic effects with improved therapeutic performance. Further, the work provided an exceptional lead to carry out the study in clinical settings.
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Affiliation(s)
- Foziyah Zakir
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Adil Ahmad
- Department of Pharmacognosy & Phytochemistry, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Uzma Farooq
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Mohd Aamir Mirza
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Alok Tripathi
- Endocrinology Division, Central Drug Research Institute, BS-10/1, Sec 10, Jankipuram Ext, Sitapur Road, P.O. Box 173, Lucknow, Uttar Pradesh, 226031, India
| | - Divya Singh
- Endocrinology Division, Central Drug Research Institute, BS-10/1, Sec 10, Jankipuram Ext, Sitapur Road, P.O. Box 173, Lucknow, Uttar Pradesh, 226031, India
| | - Faiyaz Shakeel
- Center of Excellence in Biotechnology Research (CEBR), Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Sradhanjali Mohapatra
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Farhan J Ahmad
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
| | - Kanchan Kohli
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, 110062, India
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18
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Sita V G, Vavia P. Bromocriptine Nanoemulsion-Loaded Transdermal Gel: Optimization Using Factorial Design, In Vitro and In Vivo Evaluation. AAPS PharmSciTech 2020; 21:80. [PMID: 31975311 DOI: 10.1208/s12249-020-1620-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 12/26/2019] [Indexed: 02/07/2023] Open
Abstract
Bromocriptine mesylate (BCM), a dopaminergic agonist administered orally, exhibits retarded bioavailability owing to poor absorption and extreme first-pass metabolism. The objective of the current study was to develop, characterize, and statistically optimize BCM nanoemulsion (BCM-NE) loaded into a gel (BCM-NE gel) to evaluate its potential for improved permeation of BCM through the transdermal route, thereby improving its pharmacokinetic profile. BCM-NE was prepared by o/w spontaneous emulsification method and the effects of different formulation variables on the critical attributes of NE like globule size were investigated by implementing factorial design. The optimized formulation exhibited a mean globule size of 160 ± 6.5 nm, zeta potential of - 20.4 ± 1.23 mV, and drug content of 99.45 ± 1.9%. Ex vivo permeation studies across rat skin exhibited a significant enhancement in permeation, i.e., enhancement ratio (ER) of ~ 7.4 and 5.86 for BCM-NE and BCM-NE gel, respectively, when compared with aqueous BCM suspension gel. In vivo pharmacokinetic studies performed in rats demonstrated a higher and prolonged drug release of BCM from BCM-NE gel when compared to oral aqueous BCM suspension. The AUC0-t for BCM-NE gel and BCM suspension was found to be 562.54 ± 77.55 and 204.96 ± 51.93 ng/ml h, respectively. The relative bioavailability (%F) of BCM was shown to be enhanced 274% by BCM-NE gel. Histopathological studies demonstrated the safety and biocompatibility of the developed system. All the above results proved that the BCM-NE gel could be a superior and patient-compliant alternative to oral delivery in the management of PD.
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19
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Teixeira A, Vasconcelos V, Teixeira M, Almeida V, Azevedo R, Torres T, Sousa Lobo JM, Costa PC, Almeida IF. Mechanical Properties of Topical Anti-Psoriatic Medicines: Implications for Patient Satisfaction with Treatment. AAPS PharmSciTech 2019; 20:36. [PMID: 30604084 DOI: 10.1208/s12249-018-1246-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 11/09/2018] [Indexed: 11/30/2022] Open
Abstract
Different types of topical preparations are available as anti-psoriatic medicines, semisolid formulations being the preferred dosage forms for the treatment of body lesions. The mechanical characterization of these semisolid formulations is seldom reported, although mechanical features have been recognized to play an important role in treatment acceptability and adherence. The aim of this study was to characterize the mechanical properties of semisolid topical formulations commercially available for psoriasis treatment. One complementary aim was to evaluate patient satisfaction with topical treatment and discuss the results according to the mechanical features of the dosage form. Eight ointments (O 1-8), five creams (C 1-5), one oleogel (G1), and one excipient (E1-petrolatum) were characterized for textural properties (spreadability and penetration tests) and flow behavior. Power law model was fitted to the results. A questionnaire for the assessment of satisfaction with topical medicines used for psoriasis treatment over 6 months was developed and applied to 79 psoriasis patients. All the tested formulations presented a shear-thinning behavior with power law indexes (n) lower than 1. Ointments were distinct from the other dosage forms, since they presented higher consistency coefficients (K), firmness, and adhesiveness and this was evidenced by hierarchical cluster analysis, which identified two clusters based on the mechanical properties. Cluster 1 included the ointments and petrolatum and the cluster 2 enclosed the creams and the gel. The clusters were associated with several attributes classified by patients as analyzed with Fisher's exact test. In all cases, higher satisfaction was observed for cluster 2. The knowledge obtained regarding the influence of the dosage form on the degree of satisfaction with the treatment could be helpful in supporting the selection of the dosage form in clinical practice and thus improve treatment adherence and clinical outcomes. The differences observed between the mechanical properties of the formulations studied may be also relevant to the industry, as guidance to the development of new medicines.
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Hybrid Hydrogel Composed of Polymeric Nanocapsules Co-Loading Lidocaine and Prilocaine for Topical Intraoral Anesthesia. Sci Rep 2018; 8:17972. [PMID: 30568251 PMCID: PMC6299281 DOI: 10.1038/s41598-018-36382-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/15/2018] [Indexed: 12/20/2022] Open
Abstract
This study reports the development of nanostructured hydrogels for the sustained release of the eutectic mixture of lidocaine and prilocaine (both at 2.5%) for intraoral topical use. The local anesthetics, free or encapsulated in poly(ε-caprolactone) nanocapsules, were incorporated into CARBOPOL hydrogel. The nanoparticle suspensions were characterized in vitro in terms of particle size, polydispersity, and surface charge, using dynamic light scattering measurements. The nanoparticle concentrations were determined by nanoparticle tracking analysis. Evaluation was made of physicochemical stability, structural features, encapsulation efficiency, and in vitro release kinetics. The CARBOPOL hydrogels were submitted to rheological, accelerated stability, and in vitro release tests, as well as determination of mechanical and mucoadhesive properties, in vitro cytotoxicity towards FGH and HaCaT cells, and in vitro permeation across buccal and palatal mucosa. Anesthetic efficacy was evaluated using Wistar rats. Nanocapsules were successfully developed that presented desirable physicochemical properties and a sustained release profile. The hydrogel formulations were stable for up to 6 months under critical conditions and exhibited non-Newtonian pseudoplastic flows, satisfactory mucoadhesive strength, non-cytotoxicity, and slow permeation across oral mucosa. In vivo assays revealed higher anesthetic efficacy in tail-flick tests, compared to a commercially available product. In conclusion, the proposed hydrogel has potential for provision of effective and longer-lasting superficial anesthesia at oral mucosa during medical and dental procedures. These results open perspectives for future clinical trials.
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21
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Fonseca-Santos B, Satake CY, Calixto GMF, dos Santos AM, Chorilli M. Trans-resveratrol-loaded nonionic lamellar liquid-crystalline systems: structural, rheological, mechanical, textural, and bioadhesive characterization and evaluation of in vivo anti-inflammatory activity. Int J Nanomedicine 2017; 12:6883-6893. [PMID: 29066884 PMCID: PMC5604573 DOI: 10.2147/ijn.s138629] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Resveratrol (Res) is a common phytoalexin present in a few edible materials, such as grape skin, peanuts, and red wine. Evidence has shown the beneficial effects of Res on human health, which may be attributed to its anti-inflammatory activity. However, the poor aqueous solubility of Res limits its therapeutic effectiveness. Therefore, the use of nanostructured delivery systems for Res, such as liquid-crystalline systems, could be beneficial. In this study, we aimed to develop, characterize, and determine the in vivo effectiveness of Res-loaded liquid-crystalline systems. Systems containing copaiba balsam oil, polyethylene glycol-40 hydrogenated castor oil, and water were designed. Results of polarized light microscopy, small-angle X-ray scattering, texture-profile analysis, and flow-rheology analysis showed that the Res-loaded liquid-crystalline system had a lamellar structure, textural and mechanical (hardness, compressibility, and adhesiveness) properties, and behaved as a non-Newtonian fluid, showing pseudoplastic behavior upon skin application. Furthermore, all liquid-crystalline systems presented bioadhesive properties that may have assisted in maintaining the anti-inflammatory activity of Res, since the topical application of the Res-loaded lamellar mesophase liquid crystals resulted in edema inhibition in a carrageenan-induced paw-inflammation mouse model. Therefore, Res-loaded lamellar mesophases represent a promising new therapeutic approach for inhibition of skin inflammation.
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Affiliation(s)
- Bruno Fonseca-Santos
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Cínthia Yuka Satake
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | | | - Aline Martins dos Santos
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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22
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Marques AC, Rocha AI, Leal P, Estanqueiro M, Lobo JMS. Development and characterization of mucoadhesive buccal gels containing lipid nanoparticles of ibuprofen. Int J Pharm 2017; 533:455-462. [PMID: 28412446 DOI: 10.1016/j.ijpharm.2017.04.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
Abstract
The lipid nanoparticles, namely Nanostructured Lipid Carriers (NLC), as drug delivery systems have been investigated for several years. One of the delivery routes for which these carriers can be applied is buccal administration. However, the liquid dispersions of lipid nanoparticles can be rapidly removed from oral cavity by saliva. Thus, the development of a system that allows increased retention time on the mucosa is necessary. For this reason, the development of mucoadhesive preparations for buccal administration of lipid nanoparticles becomes important. Hydrogels prepared with mucoadhesive polymers (Carbopol® 980 and polycarbophil) constitute a promising option. The aim of this work was to develop mucoadhesive buccal hydrogels with NLC, using ibuprofen as a model drug. The obtained results showed that the developed NLC dispersions presented particles in the nanometric size range, with low polydispersity index values and efficient ability for the entrapment of the model drug. Moreover, the incorporation of NLC in hydrogels of mucoadhesive polymers resulted in preparations with desirable rheological features as well as texture (firmness and adhesiveness) and mucoadhesive properties, which could benefit the therapeutic efficacy, by increasing the residence time and easiness for topical application in the buccal mucosa. Additionally, the developed preparations exhibited sustained drug release as intended for these systems.
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Affiliation(s)
- Ana Camila Marques
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
| | - Ana Isabel Rocha
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
| | - Paula Leal
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
| | - Marilene Estanqueiro
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal.
| | - José Manuel Sousa Lobo
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
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23
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Eiras F, Amaral M, Silva R, Martins E, Lobo JS, Silva A. Characterization and biocompatibility evaluation of cutaneous formulations containing lipid nanoparticles. Int J Pharm 2017; 519:373-380. [DOI: 10.1016/j.ijpharm.2017.01.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 01/17/2017] [Accepted: 01/21/2017] [Indexed: 11/25/2022]
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Jones DKF, Andrews GP, Jones DS. Strontium-containing, carbohydrate-based polymer networks as tooth-adherent systems for the treatment of dentine hypersensitivity. Carbohydr Polym 2017; 157:400-408. [PMID: 27987944 DOI: 10.1016/j.carbpol.2016.09.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 09/20/2016] [Accepted: 09/20/2016] [Indexed: 11/27/2022]
Abstract
This study describes the design/physicochemical properties of strontium-containing, mucoadhesive carbohydrate polymeric platforms, designed as treatments for dentine hypersensitivity. Interactive networks were composed of strontium chloride (10% w/w), one of two base polymers (sodium carboxymethylcellulose, NaCMC or hydroxyethylcellulose, HEC), polycarbophil (PC) and, when required, polyvinylpyrrolidone (PVP). The physicochemical properties were characterised using oscillatory and flow rheometry, texture profile analysis, mucoadhesion analysis and, additionally, the strontium release properties were examined. All platforms exhibited pseudoplastic flow. Increasing polymer concentrations increased network viscoelasticity, consistency, hardness, compressibility, gel strength, adhesiveness, mucoadhesion and, retarded strontium release. Principally zero-order strontium release was observed from all platforms. Incorporation of strontium reduced the network elasticity, consistency, hardness, compressibility, gel strength and mucoadhesion; HEC-based platforms being affected to a greater extent than NaCMC platforms. NaCMC-based platforms containing 10% strontium chloride, PVP (3% w/w) and PC (3% w/w) potentially displayed the correct balance of physicochemical properties for the treatment of dentine sensitivity.
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Affiliation(s)
- Dary K F Jones
- School of Pharmacy, Queen's University of Belfast, Belfast, Antrim, Northern Ireland, UK
| | - Gavin P Andrews
- School of Pharmacy, Queen's University of Belfast, Belfast, Antrim, Northern Ireland, UK
| | - David S Jones
- School of Pharmacy, Queen's University of Belfast, Belfast, Antrim, Northern Ireland, UK.
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25
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Design of binary polymeric platforms containing ɩ-carrageenan and hydroxypropylcellulose for use in cataract surgery. Carbohydr Polym 2016; 154:296-304. [DOI: 10.1016/j.carbpol.2016.06.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/22/2016] [Accepted: 06/10/2016] [Indexed: 11/20/2022]
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Statistical modelling of the rheological and mucoadhesive properties of aqueous poly(methylvinylether-co-maleic acid) networks: Redefining biomedical applications and the relationship between viscoelasticity and mucoadhesion. Colloids Surf B Biointerfaces 2016; 144:125-134. [DOI: 10.1016/j.colsurfb.2016.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 11/30/2022]
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Andrews GP, Laverty TP, Jones DS. Rheological Analysis of Polymer Interactions and Ageing of Poly(Methylvinylether-Co-Maleic Anhydride)/Poly(Vinyl Alcohol) Binary Networks and Their Effects on Mucoadhesion. J Pharm Sci 2015; 104:4329-4338. [DOI: 10.1002/jps.24679] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 08/22/2015] [Accepted: 08/26/2015] [Indexed: 11/11/2022]
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Fernández-Ferreiro A, González Barcia M, Gil-Martínez M, Vieites-Prado A, Lema I, Argibay B, Blanco Méndez J, Lamas MJ, Otero-Espinar FJ. In vitro and in vivo ocular safety and eye surface permanence determination by direct and Magnetic Resonance Imaging of ion-sensitive hydrogels based on gellan gum and kappa-carrageenan. Eur J Pharm Biopharm 2015; 94:342-51. [PMID: 26079831 DOI: 10.1016/j.ejpb.2015.06.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/20/2015] [Accepted: 06/08/2015] [Indexed: 11/17/2022]
Abstract
Gellan gum, kappa-carrageenan and alginates are natural polysaccharides able to interact with different cations that can be used to elaborate ion-activated in situ gelling systems for different uses. The interaction between fluid solutions of these polysaccharides and cations presents into the tear made these biopolymers very interesting to elaborate ophthalmic drug delivery systems. The main purpose of this study is to evaluate the ability of mixtures of these polymers to obtain ion-activated ophthalmic in situ gelling systems with optimal properties for ocular use. To achieve this purpose different proportion of the biopolymers were analyzed using a mixture experimental design evaluating their transparency, mechanical properties and bioadhesion in the absence and presence of simulated tear fluid. Tear induces a rapid sol-to-gel phase transition in the mixtures forming a consistent hydrogel. The solution composed by 80% of gellan gum and 20% kappa-carrageenan showed the best mechanical and mucoadhesive properties. This mixture was evaluated for rheological behavior, microstructure, cytotoxicity, acute corneal irritancy, ex-vivo and in vivo ocular toxicity and in vivo corneal contact time using Magnetic Resonance Images (MRI) techniques. Result indicates that the system is safe at ophthalmic level and produces an extensive ocular permanence higher than 6h.
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Affiliation(s)
- Anxo Fernández-Ferreiro
- Pharmacy and Pharmaceutical Technology Department and Industrial Pharmacy Institute, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, Santiago de Compostela 15782, Spain; Pharmacy Department, Xerencia de Xestión Integrada de Santiago de Compostela (SERGAS), Travesía Choupana s/n, Santiago de Compostela 15706, Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain
| | - Miguel González Barcia
- Pharmacy Department, Xerencia de Xestión Integrada de Santiago de Compostela (SERGAS), Travesía Choupana s/n, Santiago de Compostela 15706, Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain
| | - María Gil-Martínez
- Instituto Oftalmológico Gómez-Ulla, Rúa de Maruxa Mallo, 3, Santiago de Compostela 15706, Spain
| | - Alba Vieites-Prado
- Clinical Neurosciences Research Laboratory, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain
| | - Isabel Lema
- Clinical Neurosciences Research Laboratory, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain; Surgery Department (Ophthalmology), Faculty of Optics and Optometry, University of Santiago de Compostela (USC), Campus Vida, Santiago de Compostela 15782, Spain
| | - Barbara Argibay
- Clinical Neurosciences Research Laboratory, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain
| | - José Blanco Méndez
- Pharmacy and Pharmaceutical Technology Department and Industrial Pharmacy Institute, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, Santiago de Compostela 15782, Spain
| | - Maria Jesus Lamas
- Pharmacy Department, Xerencia de Xestión Integrada de Santiago de Compostela (SERGAS), Travesía Choupana s/n, Santiago de Compostela 15706, Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela 15706, Spain
| | - Francisco Javier Otero-Espinar
- Pharmacy and Pharmaceutical Technology Department and Industrial Pharmacy Institute, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, Santiago de Compostela 15782, Spain.
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Tichý E, Murányi A, Pšenková J. The Effects of Moist Heat Sterilization Process and the Presence of Electrolytes on Rheological and Textural Properties of Hydrophilic Dispersions of Polymers-Hydrogels. ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21543] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eduard Tichý
- hameln-rds a.s; Horná 36, 900 01 Modra Slovak Republic
| | - Andrej Murányi
- Faculty of Pharmacy; Comenius University; 821 08 Bratislava Slovak Republic
| | - Jana Pšenková
- hameln-rds a.s; Horná 36, 900 01 Modra Slovak Republic
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Villanova J, Ayres E, Oréfice R. Design, characterization and preliminary in vitro evaluation of a mucoadhesive polymer based on modified pectin and acrylic monomers with potential use as a pharmaceutical excipient. Carbohydr Polym 2015; 121:372-81. [DOI: 10.1016/j.carbpol.2014.12.052] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/23/2022]
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Yasmeen S, Lo MK, Bajracharya S, Roldo M. Injectable scaffolds for bone regeneration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:12977-12985. [PMID: 25296391 DOI: 10.1021/la503057w] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Clinical treatments of significant bone defects involve invasive procedures such as the application of auto- and allografts. These procedures present many limitations including the potential for infection and rejection. There is therefore a need to develop novel therapeutic strategies able to exploit the natural regenerative potential of bone and that can be delivered in a less invasive manner. Among the materials studied for the development of novel scaffolds, stimuli-responsive gels containing hydroxyapatite and carbon nanotubes as nanofillers have generated great interest. In the present work, chitosan gels containing chitosan grafted CNTs and chitosan-hydroxyapatite complex have been formed by cross-linking with glycerol phosphate. The addition of the nanofillers afforded hydrogels with a faster sol/gel transition at 37 °C and enhanced mechanical properties. The thermosensitive composite gels also showed a good bioactivity profile associated with potential for the prolonged delivery of protein drugs. The inclusion of chemically cross-linked CNTs and HA in thermosensitive gels afforded injectable composite materials with enhanced properties, including reduction of gelation time, improved mechanical properties, good bioactivity, and prolonged drug release.
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Affiliation(s)
- Sabina Yasmeen
- School of Pharmacy and Biomedical Science, University of Portsmouth , St. Michael's Building, White Swan Road, Portsmouth, UK
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Xu X, Shen Y, Wang W, Sun C, Li C, Xiong Y, Tu J. Preparation and in vitro characterization of thermosensitive and mucoadhesive hydrogels for nasal delivery of phenylephrine hydrochloride. Eur J Pharm Biopharm 2014; 88:998-1004. [DOI: 10.1016/j.ejpb.2014.08.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 07/29/2014] [Accepted: 08/26/2014] [Indexed: 10/24/2022]
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Wavikar PR, Vavia PR. Rivastigmine-loaded in situ gelling nanostructured lipid carriers for nose to brain delivery. J Liposome Res 2014; 25:141-9. [PMID: 25203610 DOI: 10.3109/08982104.2014.954129] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In the current research work, rivastigmine (RV)-loaded in situ gelling nanostructured lipid carriers (NLCs) were developed for nose to brain delivery. NLCs were fabricated by ethanol injection method using glyceryl monosterate, Capmul MCM C8, Lecithin and Tween 80. NLCs showed average particle size of 123.2 ± 2.3 nm with entrapment efficiency of 68.34 ± 3.4%. DSC, XRD and IR studies showed complete amorphization and incorporation of the drug into nanoparticles. NLCs were incorporated into an in situ gelling system using 0.8% gellan gum and 15% Lutrol F 127. RV in situ gel showed excellent elasticity, rheology, mucoadhesion and adhesiveness to facilitate its adhesion to the upper nasal mucosa. NLC-based in situ gel showed a 2-fold increase in nasal permeation of the drug over plain RV solution. In situ gelling NLCs showed a 3-fold increase in enzyme inhibition efficacy.
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Affiliation(s)
- Preeti R Wavikar
- Department of Pharmaceutical Sciences and Technology, Center for Novel Drug Delivery Systems, Institute of Chemical Technology , Mumbai, Maharashtra , India
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Pande V, Patel S, Patil V, Sonawane R. Design expert assisted formulation of topical bioadhesive gel of sertaconazole nitrate. Adv Pharm Bull 2013; 4:121-30. [PMID: 24511475 DOI: 10.5681/apb.2014.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/23/2013] [Accepted: 07/24/2013] [Indexed: 11/17/2022] Open
Abstract
PURPOSE The objective of this work was to develop a bioadhesive topical gel of sertaconazole nitrate with the help of response-surface approach. METHODS Experiments were performed according to a 3-level factorial design to evaluate the effects of two independent variables [amount of Carbapol 934 = X1) and Sodium carboxymethylcellulose (NaCMC) = X2)] on the bioadhesive character of gel, rheological property of gel (consistency index), and in-vitro drug release. The best model was selected to fit the data. RESULTS Mathematical equation was generated by Design Expert® software for the model which assists in determining the effect of independent variables. Response surface plots were also generated by the software for analyzing effect of the independent variables on the response. The effect of formulation variables on the product characteristics can be easily predicted and precisely interpreted by using a 3-level factorial design and generated quadratic mathematical equations. CONCLUSION On the basis of product characteristics viscosity, bioadhesiveness, permeation study, in-vitro release, in-vivo studies, TPA and spreadability it can be concluded that the best batch of topical bioadhesive gel of Sertaconazole nitrate would be with 1% Carbopol 934 and 1% NaCMC.
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Affiliation(s)
- Vishal Pande
- H.R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra, 425405 India
| | - Samir Patel
- H.R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra, 425405 India
| | - Vijay Patil
- H.R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra, 425405 India
| | - Raju Sonawane
- H.R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra, 425405 India
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Tuğcu-Demiröz F, Acartürk F, Erdoğan D. Development of long-acting bioadhesive vaginal gels of oxybutynin: Formulation, in vitro and in vivo evaluations. Int J Pharm 2013; 457:25-39. [DOI: 10.1016/j.ijpharm.2013.09.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/28/2013] [Accepted: 09/04/2013] [Indexed: 10/26/2022]
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Keshavarz M, Kaffashi B. The ability of retention, drug release and rheological properties of nanogel bioadhesives based on cellulose derivatives. Pharm Dev Technol 2013; 19:952-9. [PMID: 24160773 DOI: 10.3109/10837450.2013.846371] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The rheological and drug release behavior of biopolymer nanocomposite gels based on the cellulose derivatives, formulated as the bioadhesive drug delivery platforms, were investigated. The bioadhesive gel is composed of the microcrystalline cellulose, sodium carboxymethyl cellulose and phosphate buffered saline (pH = 7.4 at 20 °C) as the dissolution and release medium. The reinforcing nanofillers such as MMT-clay, fumed porous silica and porous starch were used as additives in the nanogel bioadhesive. The constant steady state viscosities of this nanogels upon incorporation of various nanofillers into the systems is the sign of structural stability. Hence, this system is suitable for use in the controlled drug delivery systems in contact with the biological tissues. Based on the rheological measurements, the shear flow properties (i.e. zero shear viscosity and yield stress) were influenced by the concentration of polymers and nanoparticles. The results indicate that the nonlinear rheological data are fitted properly by the Giesekus model. Furthermore, the results showed that the nonlinear viscoelastic parameters (λ and α) are highly affected by the biogel and nanoparticles concentrations. Finally, the drug release was measured, and the results indicated that the biopolymer-clay nanocomposites have appropriate release pattern as the release is better controlled compared to the other nanogel formulations.
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Affiliation(s)
- M Keshavarz
- Department of Polymer Engineering, School of Chemical Engineering, University of Tehran , Tehran , Iran
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Kumbhar D, Wavikar P, Vavia P. Niosomal gel of lornoxicam for topical delivery: in vitro assessment and pharmacodynamic activity. AAPS PharmSciTech 2013; 14:1072-82. [PMID: 23818079 DOI: 10.1208/s12249-013-9986-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 05/28/2013] [Indexed: 11/30/2022] Open
Abstract
Lornoxicam is a potent oxicam class of non steroidal anti-inflammatory agent, prescribed for mild to moderate pain and inflammation. Niosomal gel of lornoxicam was developed for topical application. Lornoxicam niosomes (Lor-Nio) were fabricated by thin film hydration technique. Bilayer composition of niosomal vesicles was optimized. Lor-Nio dispersion was characterized by DSC, XRD, and FT-IR. Morphological evaluation was performed by scanning electron microscopy (SEM). Lor-Nio dispersion was incorporated into a gel using 2% w/w Carbopol 980 NF. Rheological and texture properties of Lor-Nio gel formulation showed suitability of the gel for topical application. The developed formulation was evaluated for in vitro skin permeation and skin deposition studies, occlusivity test and skin irritation studies. Pharmacodynamic activity of the Lor-Nio gel was performed by carragenan-induced rat paw model. Optimized Lor-Nio comprised of Span 60 and cholesterol in a molar ratio of 3:1 with 30 μM dicetyl palmitate as a stabilizer. It had particle size of 1.125 ± 0.212 μm (d 90), with entrapment efficiency of 52.38 ± 2.1%. DSC, XRD, and IR studies showed inclusion of Lor into niosomal vesicles. SEM studies showed spherical closed vesicular structure with particles in nanometer range. The in vitro skin permeation studies showed significant improvement in skin permeation and skin deposition for Lor-Nio gel (31.41 ± 2.24 μg/cm(2), 30.079 ± 1.2 μg/cm(2)) over plain lornoxicam gel (7.37 ± 1.27 μg/cm(2), 6.6 ± 2.52 μg/cm(2)). The Lor-Nio gel formulation showed enhanced anti-inflammatory activity by exhibiting mean edema inhibition (87.69 ± 1.43%) which was significantly more than the plain lornoxicam gel (53.84 ± 2.21%).
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Wavikar P, Vavia P. Nanolipidgel for enhanced skin deposition and improved antifungal activity. AAPS PharmSciTech 2013; 14:222-33. [PMID: 23263751 DOI: 10.1208/s12249-012-9908-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 12/06/2012] [Indexed: 11/30/2022] Open
Abstract
The purpose of the research was to prepare and evaluate a topical nanolipidgel (NLH) of terbinafine hydrochloride (TRB), an antimycotic agent, for enhanced skin deposition and improved antifungal activity. Topical solid lipid nanoparticles (SLN) based nanolipidgel was formulated and evaluated. TRB-loaded SLNs were formulated by high-pressure homogenization technique. The stable TRB SLN dispersion was incorporated into a gel using 1% Carbopol 980 NF. Rheological evaluation and texture analysis of the TRB NLH was carried out. Skin permeation, skin deposition, antifungal activity, and occlusivity studies of the nanolipidgel formulation were carried out. The safety of the TRB NLH gel was evaluated using acute skin irritation test on New Zealand White rabbits. The SLN dispersion containing 10% of glyceryl monostearate, 3% of Tween 80, and 1% Plurol Oleique was the most stable. The optimized TRB SLN had a particle size and zeta potential value of 148.6±0.305 nm and -20.4±1.2 mV, respectively. TRB NLH had excellent rheological and texture properties to facilitate its topical application. TRB NLH showed increased skin deposition of the drug over plain (3-fold) and marketed TRB formulation (2-fold). TRB NLH had significantly enhanced antifungal activity against Candida albicans. TRB NLH showed efficient occlusivity and was non-irritant to the rabbit skin with no signs of erythema or edema. Solid lipid nanoparticles-based topical nanolipidgel of terbinafine can be an efficient, industrially scalable, and cost-effective alternative to the existing conventional formulations.
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Rheological and textural characterization of cosmetic emulsions containing natural and synthetic polymers: relationships between both data. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.01.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Özcan I, Azizoğlu E, Senyiğit T, Özyazıcı M, Özer Ö. Enhanced dermal delivery of diflucortolone valerate using lecithin/chitosan nanoparticles: in-vitro and in-vivo evaluations. Int J Nanomedicine 2013; 8:461-75. [PMID: 23390364 PMCID: PMC3564463 DOI: 10.2147/ijn.s40519] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The objective of this study was to prepare a suitable formulation for dermal delivery of diflucortolone valerate (DFV) that would maintain the localization in skin layers without any penetration and to optimize efficiency of DFV. Drug-loaded lecithin/chitosan nanoparticles with high entrapment efficiency (86.8%), were successfully prepared by ionic interaction technique. Sustained release of DFV was achieved without any initial burst release. Nanoparticles were also incorporated into chitosan gel at different ratios for preparing a more suitable formulation for topical drug delivery with adequate viscosity. In ex-vivo permeation studies, nanoparticles increased the accumulation of DFV especially in the stratum corneum + epidermis of rat skin without any significant permeation. Retention of DFV from nanoparticle in chitosan gel formulation (0.01%) was twofold higher than commercial cream, although it contained ten times less DFV. Nanoparticles in gel formulations produced significantly higher edema inhibition in rats compared with commercial cream in in-vivo studies. Skin blanching assay using a chromameter showed vasoconstriction similar to that of the commercial product. There were no barrier function changes upon application of nanoparticles. In-vitro and in-vivo results demonstrated that lecithin/chitosan nanoparticles in chitosan gel may be a promising carrier for dermal delivery of DFV in various skin disorders.
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Affiliation(s)
- Ipek Özcan
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Bornova, Izmir, Turkey.
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Almeida IF, Costa PC, Fernanda Bahia M. Optimization of a surfactant-free antioxidant formulation using response surface methodology. Drug Dev Ind Pharm 2013; 40:120-5. [DOI: 10.3109/03639045.2012.750666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Mahajan HS, Tyagi VK, Patil RR, Dusunge SB. Thiolated xyloglucan: Synthesis, characterization and evaluation as mucoadhesive in situ gelling agent. Carbohydr Polym 2012; 91:618-25. [PMID: 23121955 DOI: 10.1016/j.carbpol.2012.08.077] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 07/28/2012] [Accepted: 08/23/2012] [Indexed: 11/16/2022]
Abstract
The objective of present study was to enhance bioadhesive potential of xyloglucan by thiolation. Thiolation of xyloglucan was achieved with esterification with thioglycolic acid. Thiolated xyloglucan was characterized by NMR, DSC, and XRD analysis. Thiolated xyloglucan was determined to possess 4mmol of thiol groups/g of polymer by Ellman's method. Comparative evaluation of mucoadhesive property of ondansetron containing in situ gel system of xyloglucan and thiolated xyloglucan using sheep nasal mucosa revealed higher ex vivo bioadhesion time of thiolated xyloglucan as compared to xyloglucan. Improved mucoadhesive property of thiolated xyloglucan over the xyloglucan can be attributed to the formation of disulfide bond between mucus and thiolated xyloglucan. Ex vivo permeation study conducted using sheep nasal showed improved drug permeation in formulation based on thiolated xyloglucan. In conclusion, thiolation of xyloglucan improves its bioadhesion and drug permeation without affecting the resultant gel properties.
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Affiliation(s)
- Hitendra S Mahajan
- R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India.
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Solid lipid nanoparticles (SLN) - based hydrogels as potential carriers for oral transmucosal delivery of Risperidone: Preparation and characterization studies. Colloids Surf B Biointerfaces 2012; 93:241-8. [DOI: 10.1016/j.colsurfb.2012.01.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 01/10/2012] [Accepted: 01/11/2012] [Indexed: 11/22/2022]
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Ramasamy T, Khandasami US, Ruttala H, Shanmugam S. Development of solid lipid nanoparticles enriched hydrogels for topical delivery of anti-fungal agent. Macromol Res 2012. [DOI: 10.1007/s13233-012-0107-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Hurler J, Engesland A, Poorahmary Kermany B, Škalko-Basnet N. Improved texture analysis for hydrogel characterization: Gel cohesiveness, adhesiveness, and hardness. J Appl Polym Sci 2011. [DOI: 10.1002/app.35414] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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46
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Baloglu E, Karavana SY, Senyigit ZA, Hilmioglu-Polat S, Metin DY, Zekioglu O, Guneri T, Jones DS. In-situ gel formulations of econazole nitrate: preparation and in-vitro and in-vivo evaluation. ACTA ACUST UNITED AC 2011; 63:1274-82. [PMID: 21899542 DOI: 10.1111/j.2042-7158.2011.01315.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES This study describes the in-situ gelling of econazole nitrate containing thermosensitive polymers composed of poloxamer 407 and 188 as a novel treatment platform for vaginal candidiasis. METHODS Aqueous thermosensitive formulations containing 1% of econazole nitrate and poloxamer 407 and/or 188 were prepared and their rheological, mechanical and drug-release properties determined at 20 ± 0.1°C and/or 37 ± 0.1°C. Based on their biologically suitable thermorheological properties, formulations containing the mixtures of poloxamer 407 and 188 in ratios of 15:15 (F1), 15:20 (F2) and 20:10 (F3) were chosen for comprehensive analysis. KEY FINDINGS Formulations based on F3 exhibited typical gel-type mechanical spectra (G' > G″) at 37°C whereas formulations based on F1 and F2 exhibited properties akin to weakly cross-linked gels. Texture profile analysis demonstrated that F3 showed the highest cohesiveness, adhesiveness, hardness and compressibility. No statistically significant differences (P > 0.5) were observed in the release of econazole nitrate from the formulations at pH 4.5, which in all cases followed anomalous diffusion kinetics. Formulations based on 20% poloxamer 407:10% poloxamer 188 were chosen for in-vivo studies and were shown to be effective for the treatment of the vaginal candidiasis. Histopathologic evaluation also supported the effectiveness of the thermosensitive formulation administered intravaginally. CONCLUSION By careful engineering of the rheological properties, in-situ thermosensitive gel formulations of econazole nitrate were prepared and were shown to be efficacious in the treatment of vaginal candidiasis.
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Affiliation(s)
- Esra Baloglu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Bornova, İzmir, Turkey.
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Wang L, Schnaare RL, Dezzutti C, Anton PA, Rohan LC. Rectal microbicides: clinically relevant approach to the design of rectal specific placebo formulations. AIDS Res Ther 2011; 8:12. [PMID: 21385339 PMCID: PMC3061893 DOI: 10.1186/1742-6405-8-12] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Accepted: 03/07/2011] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The objective of this study is to identify the critical formulation parameters controlling distribution and function for the rectal administration of microbicides in humans. Four placebo formulations were designed with a wide range of hydrophilic characteristics (aqueous to lipid) and rheological properties (Newtonian, shear thinning, thermal sensitive and thixotropic). Aqueous formulations using typical polymers to control viscosity were iso-osmotic and buffered to pH 7. Lipid formulations were developed from lipid solvent/lipid gelling agent binary mixtures. Testing included pharmaceutical function and stability as well as in vitro and in vivo toxicity. RESULTS The aqueous fluid placebo, based on poloxamer, was fluid at room temperature, thickened and became shear thinning at 37°C. The aqueous gel placebo used carbopol as the gelling agent, was shear thinning at room temperature and showed a typical decrease in viscosity with an increase in temperature. The lipid fluid placebo, myristyl myristate in isopropyl myristate, was relatively thin and temperature independent. The lipid gel placebo, glyceryl stearate and PEG-75 stearate in caprylic/capric triglycerides, was also shear thinning at both room temperature and 37°C but with significant time dependency or thixotropy. All formulations showed no rectal irritation in rabbits and were non-toxic using an ex vivo rectal explant model. CONCLUSIONS Four placebo formulations ranging from fluid to gel in aqueous and lipid formats with a range of rheological properties were developed, tested, scaled-up, manufactured under cGMP conditions and enrolled in a formal stability program. Clinical testing of these formulations as placebos will serve as the basis for further microbicide formulation development with drug-containing products.
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Affiliation(s)
- Lin Wang
- Magee Womens Research Institute, Pittsburgh, PA, USA
| | | | - Charlene Dezzutti
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Peter A Anton
- Center for HIV Prevention Research, UCLA AIDS Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Lisa C Rohan
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
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Jones DS, Muldoon BC, Woolfson A, Andrews GP, McCoy CP, Sanderson F. Moisture‐activated rheological structuring of nonaqueous poloxamine–poly(acrylic acid) systems designed as novel biomedical implants. J Pharm Sci 2010; 99:1838-54. [DOI: 10.1002/jps.21956] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Gratieri T, Gelfuso GM, Rocha EM, Sarmento VH, de Freitas O, Lopez RFV. A poloxamer/chitosan in situ forming gel with prolonged retention time for ocular delivery. Eur J Pharm Biopharm 2010; 75:186-93. [PMID: 20188828 DOI: 10.1016/j.ejpb.2010.02.011] [Citation(s) in RCA: 228] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 02/09/2010] [Accepted: 02/22/2010] [Indexed: 02/08/2023]
Abstract
The aim of the present work was to obtain an ophthalmic delivery system with improved mechanical and mucoadhesive properties that could provide prolonged retention time for the treatment of ocular diseases. For this, an in situ forming gel comprised of the combination of a thermosetting polymer, poly (ethylene oxide)-poly (propylene oxide)-poly (ethylene oxide) (PEO-PPO-PEO, poloxamer), with a mucoadhesive agent (chitosan) was developed. Different polymer ratios were evaluated by oscillatory rheology, texture and mucoadhesive profiles. Scintigraphy studies in humans were conduced to verify the retention time of the formulations developed. The results showed that chitosan improves the mechanical strength and texture properties of poloxamer formulations and also confers mucoadhesive properties in a concentration-dependent manner. After a 10-min instillation of the poloxamer/chitosan 16:1 formulation in human eyes, 50-60% of the gel was still in contact with the cornea surface, which represents a fourfold increased retention in comparison with a conventional solution. Therefore, the developed formulation presented adequate mechanical and sensorial properties and remained in contact with the eye surface for a prolonged time. In conclusion, the in situ forming gel comprised of poloxamer/chitosan is a promising tool for the topical treatment of ocular diseases.
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Affiliation(s)
- Taís Gratieri
- Department of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, SP, Brazil
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50
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McInnes F, Baillie AJ, Stevens HNE. The use of simple dynamic mucosal models and confocal microscopy for the evaluation of lyophilised nasal formulations. J Pharm Pharmacol 2010; 59:759-67. [PMID: 17637168 DOI: 10.1211/jpp.59.6.0002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
A range of methods is reported in the literature for assessing hydration and adhesion parameters in the performance of nasal bioadhesive formulations; however, these tests do not always represent the dynamic conditions in the nasal cavity. Lyophilised formulations intended for nasal administration were evaluated using in-vitro tests designed in an attempt to mimic relevant processes in the nasal cavity, and intended to discriminate between different formulations. Initial investigative studies using scanning electron microscopy revealed that the lyophilisate had a highly porous internal structure, expected to provide an ideal porous pathway for re-hydration. Vapour sorption analysis demonstrated substantial weight gain of the lyophilisates on exposure to 95% relative humidity, ranging from 38% to 66%. Agar was used as a synthetic mucosal model designed to provide a standardised quantity of water available for rehydration of the formulations in in-vitro tests. A dynamic adhesion test and a texture analyser sliding test were designed to quantify different aspects of the spreading and adhesion of the hydrating formulations on the synthetic mucosal surface. Examination of the lyophilised formulations using confocal microscopy allowed visualisation and quantification of the initial rate of water ingress into the lyophilisates, which was found to consist of an initial rapid phase, followed by a slower steady-state phase. The results demonstrated that the use of a combination of methods representing the dynamic conditions of the nasal cavity is advisable in order to evaluate a formulation fully and to avoid misleading conclusions.
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Affiliation(s)
- Fiona McInnes
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 27 Taylor Street, Glasgow G4 0NR, UK.
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