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Liu C, Maran JJ, Rupenthal ID, Agarwal P. Mechanism of Ocular Penetration of Lipophilic Drugs from Lipophilic Vehicles. J Pharm Sci 2024:S0022-3549(24)00230-2. [PMID: 38897564 DOI: 10.1016/j.xphs.2024.06.011] [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: 05/06/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/21/2024]
Abstract
Since eyedrops have conventionally been formulated in aqueous vehicles, ocular pharmacokinetic studies are generally performed using aqueous buffers to identify physicochemical properties of the drug and the vehicles that influence drug absorption. In recent years, biocompatible lipophilic vehicles are increasingly finding application in ocular drug delivery; however, the mechanism of drug penetration from these non-aqueous vehicles is poorly understood. This study aims to compare ocular penetration of the model lipophilic drug curcumin when incorporated into lipophilic vehicles. To elucidate whether intrinsic solubility in the lipophilic vehicle influences ocular penetration, a curcumin solution and suspension were prepared in medium chain triglycerides (MCT) and squalane, respectively. Ocular penetration and distribution of curcumin from both vehicles was compared and evaluated qualitatively and quantitatively ex vivo. Significantly greater and faster penetration was observed from the squalane suspension than from the MCT solution in all ocular tissues. Our results suggest that the ability of lipophilic drugs to partition out of lipophilic vehicles and into cell membranes, rather than their intrinsic solubility in the lipophilic vehicle, determines the rate and extent of their ocular penetration.
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Affiliation(s)
- Carmen Liu
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand
| | - Jack Jonathan Maran
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand
| | - Ilva D Rupenthal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand
| | - Priyanka Agarwal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand.
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2
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Simões A, Castro RAE, Veiga F, Vitorino C. A quality by design framework for developing nanocrystal bioenabling formulations. Int J Pharm 2023; 646:123393. [PMID: 37717717 DOI: 10.1016/j.ijpharm.2023.123393] [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: 06/26/2023] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 09/19/2023]
Abstract
The present study aims to outline a rational framework for the design and development of a 1.0% (w/v) hydrocortisone nanocrystal-based formulation, resorting to a simple, efficient, and scalable nanonization methodology, based on the high-pressure homogenization (HPH) technique. Accordingly, the innovative product was comprehensively optimized following a Quality by Design (QbD) approach. The thorough selection of formulation composition was driven by a dual purpose: improving skin permeation and stability. In the early stage of development, a Failure Mode, Effects and Criticality Analysis (FMECA) diagram was employed to identify the most impactful variables for the critical quality attributes (CQAs). In this sense, a rotatable, three-factor and five-level circumscribed central composite design (CCCD) was applied to investigate how squalene concentration (x1), soluplus concentration (x2) and HPH-time (x3) influence physicochemical properties, performance and physical stability of the formulation. A robust Design Space (DS) was defined, establishing the optimal settings for the critical variables, whose combination meets the requirements set in the quality target product profile (QTPP). Morphological analysis revealed the cuboidal shape of hydrocortisone nanocrystals. In what concerns colloidal properties, the most promising formulation disclosed a small particle size (Dx(50) = 311.8 ± 1.5 nm), along with narrow size distribution (span value = 1.91 ± 0.17). Zeta potential results (-2.19 ± 0.15 mV--12.1 ± 0.4 mV) suggested a steric hindrance stabilization. FTIR spectra showed no chemical interactions between drug and formulation components. XRD diffractograms confirmed loss of crystallinity during the downsizing process. In vitro studies revealed an improvement on drug release rate (316 ± 21-516 ± 35 μg/cm2/√t), compared to the coarse suspension and commercial products, and a straight dependence on the stabilizer concentration and HPH time. The permeation flux across the skin (0.16 ± 0.02-1.2 ± 0.5 μg/cm2/h) appeared to be dependent on the drug physicochemical properties, in particular saturation solubility. Further characterization of the experimental formulations pointed out the role of the stabilizing component to prevent against physical instability phenomena. This organic solvent-free, and therefore "green" nanocrystal production technology offers great potential for pharmaceutical R&D and drug delivery by enabling the development of new forms of conventional drugs with optimal physicochemical properties and performance.
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Affiliation(s)
- Ana Simões
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV/REQUIMTE), Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Ricardo A E Castro
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; Coimbra Chemistry Centre, Institute of Molecular Sciences - IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Francisco Veiga
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV/REQUIMTE), Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Carla Vitorino
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; Coimbra Chemistry Centre, Institute of Molecular Sciences - IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
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Agarwal P, Rupenthal ID. Non-aqueous formulations in topical ocular drug delivery - a paradigm shift? Adv Drug Deliv Rev 2023; 198:114867. [PMID: 37178927 DOI: 10.1016/j.addr.2023.114867] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/03/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Topical eyedrop application is the preferred route for drug delivery to anterior segment tissues; however, the challenge of overcoming the eye's anatomical and physiological barriers while minimising tissue toxicity has restricted developments in this field. Aqueous vehicles have traditionally been used, which typically require several additives and preservatives to achieve physiologically compatible and sterile eyedrops, elevating their toxicity potential. Non-aqueous vehicles have been suggested as efficient alternatives for topical drug delivery as they can address many of the limitations associated with conventional aqueous eyedrops. However, despite their obvious advantages, non-aqueous eyedrops remain poorly researched and few non-aqueous formulations are currently available in the market. This review challenges the conventional hypothesis that aqueous solubility is a prerequisite to ocular drug absorption and establishes a rationale for using non-aqueous vehicles for ocular drug delivery. Recent advances in the field have been detailed and future research prospects have been explored, pointing towards a paradigm shift in eyedrop formulation in the near future.
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Affiliation(s)
- Priyanka Agarwal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, The University of Auckland, Auckland 1142, New Zealand.
| | - Ilva D Rupenthal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, The University of Auckland, Auckland 1142, New Zealand
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Zhang Y, Pan W, Wang D, Wang H, Hou Y, Zou M, Piao H. Solid-in-oil nanodispersion as a novel topical transdermal delivery to enhance stability and skin permeation and retention of hydrophilic drugs l-ascorbic acid. Eur J Pharm Biopharm 2023; 185:82-93. [PMID: 36791884 DOI: 10.1016/j.ejpb.2023.02.004] [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: 04/20/2022] [Revised: 10/27/2022] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
l-ascorbic acid (Vitamin C, VC) is the most abundant antioxidant in human skin. But its poor penetration into the skin and unstability limit the application. The aim of the study was to promote the topical skin permeation and retention of VC, increase the stability as well as effectiveness by a novel solid in oil nanodispersion. In the nanodispersions system, nano-sized particles of hydrophilic molecules are dispersed in an oil vehicle with the assistance of hydrophobic surfactants. The optimized formula composed of O170 and S1570 (12.5:1, w/w) showed high EE% of 98% and good stability. FTIR analysis confirmed that there may be hydrogen bond between VC and surfactants. The results of DSC, and XRD revealed that the drug was successfully encapsulated in the surfactants, which maintained the stability of drug. By analyzing and fitting the release data in vitro, the drug release mechanism of SONDs was predicted as a multi-dynamic model. Skin permeation of VC was improved 3.43-fold for SONDs compared with VC aqueous solution, highlighting that the lipophilicity and nano size of the carrier more easily penetrated into the skin. Finally, the photoaging study revealed that topical application of VC-SONDs provided the highest skin protection compared UV and VC aqueous solution treated group which was evident by the normal thick epidermal morphology, no obvious melanocytes and the densely arranged dermal elastic fibers. These results demonstrated that the solid-in-oil nanodispersions may be a potential transdermal delivery system for hydrophilic bioactive ingredients.
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Affiliation(s)
- Yue Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Wenxiu Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Dequan Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Han Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Yanting Hou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Meijuan Zou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Hongyu Piao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
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Preparation and evaluation of ascorbyl glucoside and ascorbic acid solid in oil nanodispersions for corneal epithelial wound healing. Int J Pharm 2022; 627:122227. [PMID: 36155791 DOI: 10.1016/j.ijpharm.2022.122227] [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: 06/09/2022] [Revised: 09/03/2022] [Accepted: 09/18/2022] [Indexed: 11/20/2022]
Abstract
The objective of this study was to develop and evaluate an effective topical formulation to promote corneal epithelial wound healing. Ascorbyl glucoside (AA-2G), a stable prodrug of AA, was formulated in solid in oil (S/O) nanodispersions by emulsifying AA-2G solutions in cyclohexane using Span 85 as an emulsifying agent and freeze-drying emulsions to produce AA-2G - surfactant complex. The complexes were then dispersed in castor oil to produce S/O nanodispersions which were evaluated in terms of their particle size, polydispersity index, encapsulation efficiency, morphology, physical stability as well as the transcorneal permeation and accumulation of AA-2G. The same preparation procedure was used to prepare S/O nanodispersions of AA. S/O nanodispersions of AA and AA-2G were formulated into oily drops that were tested for efficacy in promoting wound healing after corneal epithelial depredation. AA-2G was loaded efficiently in S/O nanodispersions (EE > 99%) in the form of spherical nanoparticles. S/O nanodispersions were physically stable and resulted in improved permeation (18x) and accumulation (7x) of AA-2G in transcorneal diffusion experiments in comparison to AA-2G solutions. Oily eye drops of AA-2G and AA showed no irritation and significant improvement in epithelial healing in vivo in comparison to AA-2G and AA solutions.
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6
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Application of Fundamental Techniques for Physicochemical Characterizations to Understand Post-Formulation Performance of Pharmaceutical Nanocrystalline Materials. CRYSTALS 2021. [DOI: 10.3390/cryst11030310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nanocrystalline materials (NCM, i.e., crystalline nanoparticles) have become an important class of materials with great potential for applications ranging from drug delivery and electronics to optics. Drug nanocrystals (NC) and nano co-crystals (NCC) are examples of NCM with fascinating physicochemical properties and have attracted significant attention in drug delivery. NCM are categorized by advantageous properties, such as high drug-loading efficiency, good long-term physical stability, steady and predictable drug release, and long systemic circulation time. These properties make them excellent formulations for the efficient delivery of a variety of active pharmaceutical ingredients (API). In this review, we summarize the recent advances in drug NCM-based therapy options. Currently, there are three main methods to synthesize drug NCM, including top-down, bottom-up, and combination methods. The fundamental characterization methods of drug NCM are elaborated. Furthermore, the applications of these characterizations and their implications on the post-formulation performance of NCM are introduced.
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Hou Y, Piao H, Tahara Y, Qin S, Wang J, Kong Q, Zou M, Cheng G, Goto M. Solid-in-oil nanodispersions as a novel delivery system to improve the oral bioavailability of bisphosphate, risedronate sodium. Eur J Pharm Sci 2020; 155:105521. [PMID: 32822808 DOI: 10.1016/j.ejps.2020.105521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/16/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022]
Abstract
The aim of the current study was to modify the oral absorption of risedronate sodium (RS) using solid-in-oil nanodispersions (SONDs) technology. The oral therapeutic effect of RS is limited in vivo because of its low membrane permeability and the formation of insoluble precipitates with bivalent cations (such as Ca2+) in the gastrointestinal (GI) tract.We used SONDs to prepare medium-chain triglyceride (MCT)-based nanodispersions of the hydrophilic drug, which used the oral absorption mechanism of MCT digestion to improve bioavailability of RS in vivo. SONDs exhibited high encapsulation efficiency of RS and excellent enzymatic degradation-dependent release behavior. The result of an everted gut sac test showed that the Papp value of the SONDs was 6.29-fold (p<0.05) higher than that of RS aqueous solutions in simulated intestinal fluid containing 5 mM Ca2+, this was because MCT can be digested to form the fatty acids C8 and C10, which have an adsorption-promoting effect on RS. Further, solid-in-oil-in-water (S/O/W) emulsion droplets formedafter emulsification by bile salts and MCT digestionwere effective in disrupting epithelial tight junctions (TJs), facilitating the paracellular permeation of RS throughout the intestine. Moreover, in vivo absorption study in rats revealed that the AUC0-12h of RS in SONDs was approximately 4.56-fold (p<0.05) higher than with RS aqueous solutions at the same dose (15 mg/kg). This approach demonstrates a potential drug delivery system to improve the bioavailability of risedronate sodium.
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Affiliation(s)
- Yanting Hou
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Hongyu Piao
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Yoshiro Tahara
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka819-0395, Japan
| | - Shouhong Qin
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Jingying Wang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Qingliang Kong
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka819-0395, Japan
| | - Meijuan Zou
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Gang Cheng
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang110016, China
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka819-0395, Japan; Advanced Transdermal Drug Delivery System Center, Kyushu University, Fukuoka819-0395, Japan; Center for Future Chemistry, Kyushu University, Fukuoka819-0395, Japan.
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8
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Villanueva-Martínez A, Hernández-Rizo L, Ganem-Rondero A. Evaluating two nanocarrier systems for the transdermal delivery of sodium alendronate. Int J Pharm 2020; 582:119312. [DOI: 10.1016/j.ijpharm.2020.119312] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/29/2020] [Accepted: 04/05/2020] [Indexed: 01/17/2023]
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9
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Mohammad IS, Hu H, Yin L, He W. Drug nanocrystals: Fabrication methods and promising therapeutic applications. Int J Pharm 2019; 562:187-202. [PMID: 30851386 DOI: 10.1016/j.ijpharm.2019.02.045] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/07/2019] [Accepted: 02/25/2019] [Indexed: 12/29/2022]
Abstract
The drug nanocrystals (NCs) with unique physicochemical properties are now considered as a promising drug delivery system for poorly water-soluble drugs. So far >20 formulations of NCs have been approved in the market. In this review, we summarized recent advances of NCs with emphasis on their therapeutic applications based on administration route and disease states. At the end, we present a brief description of the future perspectives of NCs and their potential role as a promising drug delivery system. As a strategy for solubilization and bioavailability enhancement, the NCs have gained significant success. Besides this, the function of NCs is still far from developed. The emerging NC-based drug delivery approach would widen the applications of NCs in drug delivery and bio-medical field. Their in vitro and in vivo fate is extremely unclear; and the development of hybrid NCs with environment-sensitive fluorophores may assist to extend the scope of bio-imaging and provide better insight to their intracellular uptake kinetics, in vitro and in vivo.
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Affiliation(s)
- Imran Shair Mohammad
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China; School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Haiyan Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Lifang Yin
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Wei He
- Shanghai Dermatology Hospital, Shanghai 200443, PR China; Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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Parhizkar E, Rashedinia M, Karimi M, Alipour S. Design and development of vitamin C-encapsulated proliposome with improved in-vitro and ex-vivo antioxidant efficacy. J Microencapsul 2018; 35:301-311. [PMID: 29781344 DOI: 10.1080/02652048.2018.1477845] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Vitamin C, as an antioxidant additive in pharmaceutical and food products, is susceptible to environmental conditions, and new design strategies are needed to enhance its stability. The aim of this study is to prepare vitamin C proliposome using film deposition on the carrier by applying different factors, and optimise the characteristics of the obtained powder using the design expert® software. The optimised formulation demonstrated acceptable flowability with 20% vitamin C loading. This formulation released about 90% vitamin C within 2 h and showed higher (1.7-fold) in-vitro antioxidant activity. Ex-vivo antioxidant activity was 1.9 and 1.6 times higher in brain and liver cells, respectively. A 27% reduction in malondialdehyde (MDA) level of liver cell was obtained comparing free vitamin C. Therefore, this study results suggest that the vitamin C-encapsulated proliposome powder might be an appropriate carrier for oral drug delivery of vitamin C with better antioxidant efficacy.
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Affiliation(s)
- Elahehnaz Parhizkar
- a Department of Pharmaceutics, School of Pharmacy , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Marzieh Rashedinia
- b Department of Toxicology, School of Pharmacy , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Maryam Karimi
- c Department of Quality Control, School of Pharmacy , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Shohreh Alipour
- c Department of Quality Control, School of Pharmacy , Shiraz University of Medical Sciences , Shiraz , Iran.,d Pharmaceutical Sciences Research Center , Shiraz University of Medical Sciences , Shiraz , Iran
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11
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Design and synthesis of a novel multifunctional stabilizer for highly stable dl-tetrahydropalmatine nanosuspensions and in vitro study. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0811-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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12
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de Francisco LMB, Pinto D, Rosseto HC, de Toledo LDAS, dos Santos RS, Costa P, Rodrigues F, Oliveira MBPP, Sarmento B, Bruschi ML. Development of a microparticulate system containing Brazilian propolis by-product and gelatine for ascorbic acid delivery: evaluation of intestinal cell viability and radical scavenging activity. Food Funct 2018; 9:4194-4206. [DOI: 10.1039/c8fo00863a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The use of propolis by-product (PBP) microparticles (MP) as delivery systems can be a promising tool to surpass drawbacks related to low stability of ascorbic acid (AA).
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Affiliation(s)
- Lizziane Maria Belloto de Francisco
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Diana Pinto
- LAQV/REQUIMTE
- Department of Chemical Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | - Hélen Cássia Rosseto
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Lucas de Alcântara Sica de Toledo
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Rafaela Said dos Santos
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Paulo Costa
- Laboratory of Pharmaceutical Technology
- Department of Medicinal Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | - Francisca Rodrigues
- LAQV/REQUIMTE
- Department of Chemical Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | | | - Bruno Sarmento
- i3S – Instituto de Investigação e Inovação em Saúde
- University of Porto
- 4200-135 Porto
- Portugal
- iNEB – Instituto de Engenharia Biomédica
| | - Marcos Luciano Bruschi
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
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Nakai S, Nakai A, Michida T. Microencapsulation of Ascorbic Acid for Cosmetic by Utilizing Self-assembly of Phase Separated Polymer. Chem Pharm Bull (Tokyo) 2016; 64:1514-1518. [PMID: 27725506 DOI: 10.1248/cpb.c16-00384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Micrometer-sized polymer particles encapsulated ascorbic acid (vitamin C; VC) were successfully prepared by the three types of the self-assembling method, those are, phase separation and self-assembly of added polymer at the oil-water interface in emulsion, microsuspension polymerization utilizing the self-assembling of phase separated polymer (SaPSeP) method, and their hybrid method. In the stability study at 50°C for 2 months, the three kinds of capsule particles exhibited effective protection of VC from the interaction with other components in cosmetic consisting of water-in-oil (W/O) emulsion. The encapsulated VC was easily released from the capsule particles by an excess of water. These encapsulation methods will be useful for the stabilization of water-soluble substances in cosmetic consisting of W/O emulsion.
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Affiliation(s)
- Shiro Nakai
- Department of Chemistry, Kashiwara Senior High School, Higashiosaka University
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14
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Kitaoka M, Wakabayashi R, Kamiya N, Goto M. Solid-in-oil nanodispersions for transdermal drug delivery systems. Biotechnol J 2016; 11:1375-1385. [PMID: 27529824 PMCID: PMC5132072 DOI: 10.1002/biot.201600081] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 07/10/2016] [Accepted: 07/11/2016] [Indexed: 12/15/2022]
Abstract
Transdermal administration of drugs has advantages over conventional oral administration or administration using injection equipment. The route of administration reduces the opportunity for drug evacuation before systemic circulation, and enables long-lasting drug administration at a modest body concentration. In addition, the skin is an attractive route for vaccination, because there are many immune cells in the skin. Recently, solid-in-oil nanodisperison (S/O) technique has demonstrated to deliver cosmetic and pharmaceutical bioactives efficiently through the skin. S/O nanodispersions are nanosized drug carriers designed to overcome the skin barrier. This review discusses the rationale for preparation of efficient and stable S/O nanodispersions, as well as application examples in cosmetic and pharmaceutical materials including vaccines. Drug administration using a patch is user-friendly, and may improve patient compliance. The technique is a potent transcutaneous immunization method without needles.
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Affiliation(s)
- Momoko Kitaoka
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Rie Wakabayashi
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan
| | - Noriho Kamiya
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, Japan
| | - Masahiro Goto
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, Japan
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15
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Transcutaneous Immunization Using Nano-sized Drug Carriers. METHODS IN PHARMACOLOGY AND TOXICOLOGY 2016. [DOI: 10.1007/978-1-4939-3121-7_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Akhlaghi SP, Berry RM, Tam KC. Modified cellulose nanocrystal for vitamin C delivery. AAPS PharmSciTech 2015; 16:306-14. [PMID: 25287329 DOI: 10.1208/s12249-014-0218-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 09/10/2014] [Indexed: 11/30/2022] Open
Abstract
Cellulose nanocrystal grafted with chitosan oligosaccharide (CNC-CSOS) was used to encapsulate vitamin C and prepare CNCS/VC complexes using tripolyphosphte via ionic complexation. The stability of vitamin C and the antioxidant activity of the CNCS/VC complexes were elucidated. The formation of the complex was confirmed using DSC and UV-vis spectrophotometry, and TEM was used to study the morphology of the complexes. The encapsulation efficiency of vitamin C at pH 3 and 5 was 71.6% ± 6.8 and 91.0 ± 1.0, respectively. Strong exothermic peaks observed in isothermal titration calorimetric (ITC) studies at pH 5 could be attributed to additional electrostatic interactions between CNC-CSOS and vitamin C at pH 5. The in vitro release of vitamin C from CNCS/VC complexes showed a sustained release of up to 20 days. The vitamin C released from CNCS/VC complex displayed higher stability compared with the control vitamin C solution, and this was also confirmed from the ITC thermograms. CNC-CSOS possessed a higher scavenging activity and faster antioxidant activity compared with its precursors, i.e., oxidized CNC and CSOS and their physical mixtures. Complexing vitamin C into CNC-CSOS particles yielded a dynamic antioxidant agent, where the vitamin C is released over time and displayed sustained antioxidant properties. Therefore, CNCS/VC can potentially be used in cosmeceutical applications as topical formulations.
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Pawar VK, Singh Y, Meher JG, Gupta S, Chourasia MK. Engineered nanocrystal technology: in-vivo fate, targeting and applications in drug delivery. J Control Release 2014; 183:51-66. [PMID: 24667572 DOI: 10.1016/j.jconrel.2014.03.030] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 03/17/2014] [Indexed: 12/17/2022]
Abstract
Formulation of nanocrystals is a robust approach which can improve delivery of poorly water soluble drugs, a challenge pharmaceutical industry has been facing since long. Large scale production of nanocrystals is done by techniques like precipitation, media milling and, high pressure homogenization. Application of appropriate stabilizers along with drying accords long term stability and commercial viability to nanocrystals. These can be administered through oral, parenteral, pulmonary, dermal and ocular routes showing their high therapeutic applicability. They serve to target drug molecules in specific regions through size manipulation and surface modification. This review dwells upon the in-vivo fate and varying applications in addition to the facets of drug nanocrystals stated above.
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Affiliation(s)
- Vivek K Pawar
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Yuvraj Singh
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Jaya Gopal Meher
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Siddharth Gupta
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Manish K Chourasia
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP, India.
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A theoretical study on ascorbic acid dissociation in water clusters. J Mol Model 2014; 20:2128. [DOI: 10.1007/s00894-014-2128-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 12/27/2013] [Indexed: 11/26/2022]
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Kitaoka M, Imamura K, Hirakawa Y, Tahara Y, Kamiya N, Goto M. Sucrose laurate-enhanced transcutaneous immunization with a solid-in-oil nanodispersion. MEDCHEMCOMM 2014. [DOI: 10.1039/c3md00164d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li F, Chen B, Ping Z, Jia X, Guo X, Xiao L, Liu L. Synthesis of 6-O-poly(ϵ-caprolactone)-L-ascorbic acid and its controlled release from supramolecular polymer micelles. Macromol Biosci 2013; 14:280-8. [PMID: 23966285 DOI: 10.1002/mabi.201300197] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 06/21/2013] [Indexed: 12/20/2022]
Abstract
Lipophilic 6-O-poly (ϵ-caprolactone)-L-ascorbic acid (AA-6-PCL) is synthesized through ROP of ϵ-caprolactone (CL). The number of repeating CL units in the polymer chain varies from 6 to 19. AA-6-PCL loaded supramolecular polymer micelles (SMPMs) are constructed with β-cyclodextrin (β-CD) and PCL as blocks. Transmission electron microscopy images show a nanospheric morphology of the micelles with a size range of 43.3 ± 5.0 nm. The drug loading contents are 22.53-39.23% for AA-6-PCL. AA-6-PCL exhibits high radical scavenging capacity (93.96-96.73%) and efficient scavenging potency, and a cytotoxicity study proves the excellent cytocompatibility of AA-6-PCL loaded β-CD/PCL SMPMs, which altogether herald their potential application in the study of the induced pluripotent stem cells.
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Affiliation(s)
- Feifei Li
- Department of Polymer Science, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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Solid-in-oil dispersion: a novel core technology for drug delivery systems. Int J Pharm 2012; 438:249-57. [PMID: 22975308 DOI: 10.1016/j.ijpharm.2012.09.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 09/01/2012] [Accepted: 09/03/2012] [Indexed: 01/12/2023]
Abstract
Drug delivery systems using a solid-in-oil (S/O) dispersion as a core technology have advanced significantly over the past ten years. A novel, effective and practical preparation method for a S/O dispersion was originally established in 1997 as a tool for enzymatic catalysis in organic media. This oil-based dispersion containing proteins in non-aqueous media had great potential for applications to other research with one of the most successful being its adaptation as a drug delivery system. The history and features of novel processes for preparing S/O dispersions are presented in this article. In addition, recent research into the use of S/O dispersions for innovative oral and skin drug delivery systems is discussed.
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