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Chavda VP, Balar PC, Bezbaruah R, Vaghela DA, Rynjah D, Bhattacharjee B, Sugandhi VV, Paiva-Santos AC. Nanoemulsions: summary of a decade of research and recent advances. Nanomedicine (Lond) 2024. [PMID: 38293801 DOI: 10.2217/nnm-2023-0199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
Nanoemulsions consist of a combination of several components such as oil, water, emulsifiers, surfactants and cosurfactants. Various techniques for producing nanoemulsions include high-energy and low-energy approaches such as high-pressure homogenization, microfluidization, jet disperser and phase inversion methods. The properties of a formulation can be influenced by elements such as the composition, concentration, size and charge of droplets, which in turn can affect the technique of manufacture. Characterization is conducted by the assessment of several factors such as physical properties, pH analysis, viscosity measurement and refractive index determination. This article offers a thorough examination of the latest developments in nanoemulsion technology, with a focus on their wide-ranging applications and promising future possibilities. It also discusses the administration of nanoemulsions through several methods.
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Affiliation(s)
- Vivek P Chavda
- Department of Pharmaceutics & Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad, India, 380009
| | - Pankti C Balar
- Pharmacy Section, L.M. College of Pharmacy, Ahmedabad, India, 380009
| | - Rajashri Bezbaruah
- Department of Pharmaceutical Sciences, Faculty of Science & Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Institute of Pharmacy, Assam Medical College & Hospital, Dibrugarh, Assam, 786002, India
| | - Dixa A Vaghela
- Pharmacy Section, L.M. College of Pharmacy, Ahmedabad, India, 380009
| | - Damanbhalang Rynjah
- Department of Pharmaceutical Sciences, Girijananda Chowdhury Institute of Pharmaceutical Science-Tezpur, Sonitpur, Assam, 784501, India
| | - Bedanta Bhattacharjee
- Department of Pharmaceutical Sciences, Girijananda Chowdhury Institute of Pharmaceutical Science-Tezpur, Sonitpur, Assam, 784501, India
| | - Vrashabh V Sugandhi
- Department of Industrial Pharmacy, College of Pharmacy and Health Sciences St. John's University, New York, 11439, USA
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal,3000-370
- REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal, 3000-548
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Stiepel RT, Duggan E, Batty CJ, Ainslie KM. Micro and nanotechnologies: The little formulations that could. Bioeng Transl Med 2023; 8:e10421. [PMID: 36925714 PMCID: PMC10013823 DOI: 10.1002/btm2.10421] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/22/2022] [Accepted: 09/18/2022] [Indexed: 11/05/2022] Open
Abstract
The first publication of micro- and nanotechnology in medicine was in 1798 with the use of the Cowpox virus by Edward Jenner as an attenuated vaccine against Smallpox. Since then, there has been an explosion of micro- and nanotechnologies for medical applications. The breadth of these micro- and nanotechnologies is discussed in this piece, presenting the date of their first report and their latest progression (e.g., clinical trials, FDA approval). This includes successes such as the recent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines from Pfizer, Moderna, and Janssen (Johnson & Johnson) as well as the most popular nanoparticle therapy, liposomal Doxil. However, the enormity of the success of these platforms has not been without challenges. For example, we discuss why the production of Doxil was halted for several years, and the bankruptcy of BIND therapeutics, which relied on a nanoparticle drug carrier. Overall, the field of micro- and nanotechnology has advanced beyond these challenges and continues advancing new and novel platforms that have transformed therapies, vaccines, and imaging. In this review, a wide range of biomedical micro- and nanotechnology is discussed to serve as a primer to the field and provide an accessible summary of clinically relevant micro- and nanotechnology platforms.
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Affiliation(s)
- Rebeca T. Stiepel
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of PharmacyUniversity of North CarolinaChapel HillNorth CarolinaUSA
| | - Eliza Duggan
- North Carolina School of Science and MathematicsDurhamNorth CarolinaUSA
| | - Cole J. Batty
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of PharmacyUniversity of North CarolinaChapel HillNorth CarolinaUSA
| | - Kristy M. Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of PharmacyUniversity of North CarolinaChapel HillNorth CarolinaUSA
- Joint Department of Biomedical EngineeringUniversity of North Carolina at Chapel Hill and North Carolina State UniversityChapel HillNorth CarolinaUSA
- Department of Microbiology and Immunology, UNC School of MedicineUniversity of North CarolinaChapel HillNorth CarolinaUSA
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Chaiyabutr C, Punnakitikashem P, Silpa-archa N, Wongpraprarut C, Chularojanamontri L. The Anti-Psoriatic Efficacy and Safety Profile of Topical and Intralesional Methotrexate: A Literature Review. Clin Cosmet Investig Dermatol 2022; 15:2253-2274. [PMID: 36320927 PMCID: PMC9618255 DOI: 10.2147/ccid.s380218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
Methotrexate (MTX) has long been considered the first-line oral systemic pharmacotherapy for psoriasis. The drug has several well-known systemic side effects, such as bone marrow suppression and hepatotoxicity. To avoid them, the use of topical or intralesional administrations of MTX has become an interesting option. With the advent of novel drug delivery systems, especially nanocarriers, the usage of a high-efficacy and safe topical MTX for psoriasis has nearly been attained. This review examined the development, anti-psoriatic efficacy and adverse effects of topical forms of MTX (plain MTX; MTX with chemical enhancer; MTX using nanotechnology; MTX with protein transduction domains; MTX with liquid crystalline systems; and MTX with physical enhancer/laser) and intralesional MTX in psoriasis patients and psoriasis-induced animals. The efficacy of topical MTX varied with the drug delivery technology employed. Nevertheless, the overall safety profile of the topical forms was favourable. A 25 mg/mL MTX solution injected intralesionally at the nail matrix worked well for nail psoriasis recalcitrant to topical treatment. To improve the standard of care for patients with psoriasis, randomized controlled trials that establish the most effective MTX-delivery system are needed.
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Affiliation(s)
- Chayada Chaiyabutr
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Primana Punnakitikashem
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Narumol Silpa-archa
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chanisada Wongpraprarut
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Leena Chularojanamontri
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand,Correspondence: Leena Chularojanamontri, Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok, 10700, Thailand, Tel +66 2 419 4333, Fax +66 2 411 5031, Email
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Tan MSA, Pandey P, Lohman RJ, Falconer JR, Siskind DJ, Parekh HS. Fabrication and Characterization of Clozapine Nanoemulsion Sol-Gel for Intranasal Administration. Mol Pharm 2022; 19:4055-4066. [PMID: 36149013 DOI: 10.1021/acs.molpharmaceut.2c00513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Clozapine is the most effective antipsychotic for treatment-resistant schizophrenia. However, it causes many adverse drug reactions (ADRs), which lead to poor treatment outcomes. Nose-to-brain (N2B) drug delivery offers a promising approach to reduce peripheral ADRs by minimizing systemic drug exposure. The aim of the present study was to develop and characterize clozapine-loaded nanoemulsion sol-gel (CLZ-NESG) for intranasal administration using high energy sonication method. A range of oils, surfactants, and cosurfactants were screened with the highest clozapine solubility selected for the development of nanoemulsion. Pseudoternary phase diagrams were constructed using a low-energy (spontaneous) method to identify the microemulsion regions (i.e., where mixtures were transparent). The final formulation, CLZ-NESG (pH 5.5 ± 0.2), comprising 1% w/w clozapine, 1% w/w oleic acid, 10% w/w polysorbate 80/propylene glycol (3:1), and 20% w/w poloxamer 407 (P407) solution, had an average globule size of ≤30 nm with PDI 0.2 and zeta potential of -39.7 ± 1.5 mV. The in vitro cumulative drug release of clozapine from the nanoemulsion gel at 34 °C (temperature of nasal cavity) after 72 h was 38.9 ± 4.6% compared to 84.2 ± 3.9% with the control solution. The permeation study using sheep nasal mucosa as diffusion barriers confirmed a sustained release of clozapine with 56.2 ± 2.3% cumulative drug permeated after 8 h. Additionally, the histopathological examination found no severe nasal ciliotoxicity on the mucosal tissues. The thermodynamic stability studies showed that the gel strength and viscosity of CLZ-NESG decreased after temperature cycling but was still seen to be in "gel" form at nasal temperature. However, the accelerated storage stability study showed a decrease in drug concentration after 3 months, which can be expected at elevated stress conditions. The formulation developed in this study showed desirable physicochemical properties for intranasal administration, highlighting the potential value of a nanoemulsion gel for improving drug bioavailability of clozapine for N2B delivery.
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Affiliation(s)
- Madeleine S A Tan
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia.,Medicines Management Unit, Department of Health, Northern Territory Government, Royal Darwin Hospital, 105 Rocklands Drive, Tiwi, Northern Territory 0810, Australia
| | - Preeti Pandey
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Rink-Jan Lohman
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - James R Falconer
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Dan J Siskind
- Faculty of Medicine, The University of Queensland, 20 Weightman Street, Herston, Queensland 4006, Australia.,Metro South Addiction and Mental Health Service, Level 2 Mental Health, Woolloongabba Community Health Centre, 228 Logan Road, Woolloongabba, Queensland 4102, Australia
| | - Harendra S Parekh
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
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Marena GD, Ramos MADS, Carvalho GC, Junior JAP, Resende FA, Corrêa I, Ono GYB, Sousa Araujo VH, Camargo BAF, Bauab TM, Chorilli M. Natural product‐based nanomedicine applied to fungal infection treatment: A review of the last 4 years. Phytother Res 2022; 36:2710-2745. [DOI: 10.1002/ptr.7460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/25/2022] [Accepted: 03/26/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Gabriel Davi Marena
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
- Department of Biological Sciences, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Matheus Aparecido dos Santos Ramos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
- Department of Biological Sciences, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Gabriela Corrêa Carvalho
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | | | | | - Ione Corrêa
- Department of Biological Sciences, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Gabriela Yuki Bressanim Ono
- Department of Biological Sciences, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Victor Hugo Sousa Araujo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Bruna Almeida Furquim Camargo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
| | - Tais Maria Bauab
- Department of Biological Sciences and Health University of Araraquara (UNIARA) Araraquara Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences São Paulo State University (UNESP) Araraquara Brazil
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Polyphenols as Antioxidants for Extending Food Shelf-Life and in the Prevention of Health Diseases: Encapsulation and Interfacial Phenomena. Biomedicines 2021; 9:biomedicines9121909. [PMID: 34944722 PMCID: PMC8698762 DOI: 10.3390/biomedicines9121909] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 01/23/2023] Open
Abstract
Toxicity caused by the exposure to human-made chemicals and environmental conditions has become a major health concern because they may significantly increase the formation of reactive oxygen species (ROS), negatively affecting the endogenous antioxidant defense. Living systems have evolved complex antioxidant mechanisms to protect cells from oxidative conditions. Although oxidative stress contributes to various pathologies, the intake of molecules such as polyphenols, obtained from natural sources, may limit their effects because of their antioxidant and antimicrobial properties against lipid peroxidation and against a broad range of foodborne pathogens. Ingestion of polyphenol-rich foods, such as fruits and vegetables, help to reduce the harmful effects of ROS, but the use of supramolecular and nanomaterials as delivery systems has emerged as an efficient method to improve their pharmacological and therapeutic effects. Suitable exogenous polyphenolic antioxidants should be readily absorbed and delivered to sites where pathological oxidative damage may take place, for instance, intracellular locations. Many potential antioxidants have a poor bioavailability, but they can be encapsulated to improve their ideal solubility and permeability profile. Development of effective antioxidant strategies requires the creation of new nanoscale drug delivery systems to significantly reduce oxidative stress. In this review we provide an overview of the oxidative stress process, highlight some properties of ROS, and discuss the role of natural polyphenols as bioactives in controlling the overproduction of ROS and bacterial and fungal growth, paying special attention to their encapsulation in suitable delivery systems and to their location in colloidal systems where interfaces play a crucial role.
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Suhail N, Alzahrani AK, Basha WJ, Kizilbash N, Zaidi A, Ambreen J, Khachfe HM. Microemulsions: Unique Properties, Pharmacological Applications, and Targeted Drug Delivery. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.754889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Microemulsions, comprising oil, water and a surfactant, in association with some co-surfactant, are thermodynamically stable systems. They have found applications in a large number of chemical and pharmacological processes due to their unique properties such as large interfacial area, low interfacial tension, and most importantly, the ability to solubilize and deliver hydrophobic drugs. In addition to the oral and intravenous route, they are suitable for drug delivery through the ophthalmic, vaginal, pulmonary, dental, and topical routes. This review highlights the properties and several recent developments in the use of microemulsions for medical treatment purposes including targeted drug delivery.
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Hamed R, Seder BY, Bardaweel SK, Qawass H. Lipid-based formulations of microemulsion-loaded oleogels for the oral delivery of carvedilol. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1964987] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Rania Hamed
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Bayan Yaser Seder
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Sanaa K. Bardaweel
- Department of Pharmacy, School of Pharmacy, University of Jordan, Amman, Jordan
| | - Hala Qawass
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
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Sawant A, Kamath S, KG H, Kulyadi GP. Solid-in-Oil-in-Water Emulsion: An Innovative Paradigm to Improve Drug Stability and Biological Activity. AAPS PharmSciTech 2021; 22:199. [PMID: 34212274 PMCID: PMC8249250 DOI: 10.1208/s12249-021-02074-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/14/2021] [Indexed: 12/13/2022] Open
Abstract
Abstract An emulsion is a biphasic dosage form comprising of dispersed phase containing droplets that are uniformly distributed into a surrounding liquid which forms the continuous phase. An emulsifier is added at the interface of two immiscible liquids to stabilize the thermodynamically unstable emulsion. Various types of emulsions such as water-in-oil (w-o), oil-in-water (o-w), microemulsions, and multiple emulsions are used for delivering certain drugs in the body. Water (aqueous) phase is commonly used for encapsulating proteins and several other drugs in water-in-oil-in-water (w-o-w) emulsion technique. But this method has posed certain problems such as decreased stability, burst release, and low entrapment efficiency. Thus, a novel “solid-in-oil-in-water” (s-o-w) emulsion system was developed for formulating certain drugs, probiotics, proteins, antibodies, and tannins to overcome these issues. In this method, the active ingredient is encapsulated as a solid and added to an oil phase, which formed a solid-oil dispersion. This dispersion was then mixed with water to form a continuous phase for enhancing the drug absorption. This article focuses on the various studies done to investigate the effectiveness of formulations prepared as solid-oil-water emulsions in comparison to conventional water-oil-water emulsions. A summary of the results obtained in each study is presented in this article. The s-o-w emulsion technique may become beneficial in near future as it has shown to improve the stability and efficacy of the entrapped active ingredient. Graphical abstract ![]()
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Talianu MT, Dinu-Pîrvu CE, Ghica MV, Anuţa V, Jinga V, Popa L. Foray into Concepts of Design and Evaluation of Microemulsions as a Modern Approach for Topical Applications in Acne Pathology. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2292. [PMID: 33228156 PMCID: PMC7699607 DOI: 10.3390/nano10112292] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 01/19/2023]
Abstract
With a fascinating complexity, governed by multiple physiological processes, the skin is considered a mantle with protective functions which during lifetime are frequently impaired, triggering dermatologic disorders. As one of the most prevalent dermatologic conditions worldwide, characterized by a complex pathogenesis and a high recurrence, acne can affect the patient's quality of life. Smart topical vehicles represent a good option in the treatment of a versatile skin condition. By surpassing the stratum corneum known for diffusional resistance, a superior topical bioavailability can be obtained at the affected place. In this direction, the literature study presents microemulsions as a part of a condensed group of modern formulations. Microemulsions are appreciated for their superior profile in matters of drug delivery, especially for challenging substances with hydrophilic or lipophilic structures. Formulated as transparent and thermodynamically stable systems, using simplified methods of preparation, microemulsions have a simple and clear appearance. Their unique structures can be explained as a function of the formulation parameters which were found to be the mainstay of a targeted therapy.
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Affiliation(s)
- Marina-Theodora Talianu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Valentina Anuţa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Viorel Jinga
- Department of Clinical Sciences, no.3, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
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The studies of PLGA nanoparticles loading atorvastatin calcium for oral administration in vitro and in vivo. Asian J Pharm Sci 2016; 12:285-291. [PMID: 32104340 PMCID: PMC7032215 DOI: 10.1016/j.ajps.2016.08.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 08/01/2016] [Accepted: 08/21/2016] [Indexed: 11/24/2022] Open
Abstract
A biodegradable poly(lactic-co-glycolic acid) loading atorvastatin calcium (AC) nanoparticles (AC-PLGA-NPs) were prepared by probe ultrasonication and evaporation method aiming at improving the oral bioavailability of AC. The effects of experimental parameters, including stabilizer species, stabilizer concentration and pH of aqueous phase, on particle size were also evaluated. The resultant nanoparticles were in spherical shape with an average diameter of 174.7 nm and a narrow particle size distribution. And the drug loading and encapsulation efficiency were about 8% and 71%, respectively. The particle size and polydispersion were almost unchanged in 10 days. The release curves of AC-PLGA-NPs in vitro displaying sustained release characteristics indicated that its release mechanisms were matrix erosion and diffusion. The pharmacokinetic study in vivo revealed that the Cmax and AUC0-∞ of AC-PLGA-NPs in rats were nearly 3.7-fold and 4.7-fold higher than that of pure atorvastatin calcium suspension. Our results demonstrated that the delivery of AC-PLGA-NPs could be a promising approach for the oral delivery of AC for enhanced bioavailability.
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Singh J, Garg T, Rath G, Goyal AK. Advances in nanotechnology-based carrier systems for targeted delivery of bioactive drug molecules with special emphasis on immunotherapy in drug resistant tuberculosis – a critical review. Drug Deliv 2015; 23:1676-98. [DOI: 10.3109/10717544.2015.1074765] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Singh B, Garg T, Goyal AK, Rath G. Development, optimization, and characterization of polymeric electrospun nanofiber: a new attempt in sublingual delivery of nicorandil for the management of angina pectoris. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1498-507. [PMID: 26134924 DOI: 10.3109/21691401.2015.1052472] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The objective of the current investigation was to develop a novel biocomposite polymeric nanofiber for sublingual delivery of nicorandil in an attempt to reduce mucosal ulceration and to improve drug bioavailability. Polymeric nanofibers were achieved using vitamin B12 and a blend of hyaluronic acid and polyvinyl alcohol as polymeric constituents. The electrospinning method was used to prepare drug (nicorandil)-loaded nanofibers. The resulting nanofibers were characterized for morphology, drug loading, XRD, DSC, in vitro drug release, degree of swelling, and pharmacokinetic behavior. The prepared nanofibers were found to be uniform, non-beaded, and non-woven, with fiber diameter ranging from 200-450 nm. In vitro drug release substantiated the controlled release behavior of the developed formulation. Histopathology studies demonstrated no evidence of mucosal ulceration at the site of application. Pharmacokinetic studies established the preclinical safety and showed the maintenance of an effective therapeutic level for a prolonged period. The present investigation gives inputs showing that the biocomposite nanofiber assists as a perfect carrier system for sublingual delivery of anti-anginal drugs.
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Affiliation(s)
- Baljeet Singh
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga, Punjab , India
| | - Tarun Garg
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga, Punjab , India
| | - Amit K Goyal
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga, Punjab , India
| | - Goutam Rath
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga, Punjab , India
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Garg T, Bhandari S, Rath G, Goyal AK. Current strategies for targeted delivery of bio-active drug molecules in the treatment of brain tumor. J Drug Target 2015; 23:865-87. [PMID: 25835469 DOI: 10.3109/1061186x.2015.1029930] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Brain tumor is one of the most challenging diseases to treat. The major obstacle in the specific drug delivery to brain is blood-brain barrier (BBB). Mostly available anti-cancer drugs are large hydrophobic molecules which have limited permeability via BBB. Therefore, it is clear that the protective barriers confining the passage of the foreign particles into the brain are the main impediment for the brain drug delivery. Hence, the major challenge in drug development and delivery for the neurological diseases is to design non-invasive nanocarrier systems that can assist controlled and targeted drug delivery to the specific regions of the brain. In this review article, our major focus to treat brain tumor by study numerous strategies includes intracerebral implants, BBB disruption, intraventricular infusion, convection-enhanced delivery, intra-arterial drug delivery, intrathecal drug delivery, injection, catheters, pumps, microdialysis, RNA interference, antisense therapy, gene therapy, monoclonal/cationic antibodies conjugate, endogenous transporters, lipophilic analogues, prodrugs, efflux transporters, direct conjugation of antitumor drugs, direct targeting of liposomes, nanoparticles, solid-lipid nanoparticles, polymeric micelles, dendrimers and albumin-based drug carriers.
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Affiliation(s)
| | - Saurav Bhandari
- b Department of Quality Assurance , ISF College of Pharmacy , Moga , Punjab , India
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