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Hu J, Zhang L, Li W, He Y, Wu CY. Modelling the controlled drug release of push-pull osmotic pump tablets using DEM. Int J Pharm 2024; 660:124316. [PMID: 38857664 DOI: 10.1016/j.ijpharm.2024.124316] [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: 04/15/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
The push-pull osmotic pump tablet is a promising drug delivery approach, offering advantages over traditional dosage forms in achieving consistent and predictable drug release rates. In the current study, the drug release process of push-pull osmotic pump tablets is modelled for the first time using the discrete element method (DEM) incorporated with a microscopic diffusion-induced swelling model. The effects of dosage and formulation design, such as delivery orifice size, drug-to-polymer ratio, tablet surface curvature, friction between particles and cohesion of polymer particles, on the drug release performance are systematically analysed. Numerical results reveal that an enlarged delivery orifice significantly increases both the total drug release and the drug release rate. Moreover, the larger the swellable particle component in the tablet, the higher the drug release rate. Furthermore, the tablet surface curvature is found to affect the drug release profile, i.e. the final drug release percentage increases with the increasing tablet surface curvature. It is also found that the drug release rate could be controlled by adjusting the inter-particle friction and the cohesion of polymer particles in the formulation. This DEM study offers valuable insights into the mechanisms governing drug release in push-pull osmotic pump tablets.
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Affiliation(s)
- Jiawei Hu
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, UK
| | - Ling Zhang
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, UK
| | - Wen Li
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, UK; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanping He
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Chuan-Yu Wu
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, UK.
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2
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Budiman A, Anastasya G, Handini AL, Lestari IN, Subra L, Aulifa DL. Characterization of Drug with Good Glass-Forming Ability Loaded Mesoporous Silica Nanoparticles and Its Impact Toward in vitro and in vivo Studies. Int J Nanomedicine 2024; 19:2199-2225. [PMID: 38465205 PMCID: PMC10924831 DOI: 10.2147/ijn.s453873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/18/2024] [Indexed: 03/12/2024] Open
Abstract
Solid oral dosage forms are mostly preferred in pharmaceutical formulation development due to patient convenience, ease of product handling, high throughput, low manufacturing costs, with good physical and chemical stability. However, 70% of drug candidates have poor water solubility leading to compromised bioavailability. This phenomenon occurs because drug molecules are often absorbed after dissolving in gastrointestinal fluid. To address this limitation, delivery systems designed to improve the pharmacokinetics of drug molecules are needed to allow controlled release and target-specific delivery. Among various strategies, amorphous formulations show significantly high potential, particularly for molecules with solubility-limited dissolution rates. The ease of drug molecules to amorphized is known as their glass-forming ability (GFA). Specifically, drug molecules categorized into class III based on the Taylor classification have a low recrystallization tendency and high GFA after cooling, with substantial "glass stability" when heated. In the last decades, the application of mesoporous silica nanoparticles (MSNs) as drug delivery systems (DDS) has gained significant attention in various investigations and the pharmaceutical industry. This is attributed to the unique physicochemical properties of MSNs, including high loading capacity, recrystallization inhibition, excellent biocompatibility, and easy functionalization. Therefore, this study aimed to discuss the current state of good glass former drug loaded mesoporous silica and shows its impact on the pharmaceutical properties including dissolution and physical stability, along with in vivo study. The results show the importance of determining whether mesoporous structures are needed in amorphous formulations to improve the pharmaceutical properties of drug with a favorable GFA.
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Affiliation(s)
- Arif Budiman
- Department of Pharmaceutics and Pharmaceutical Technology, Universitas Padjadjaran, Bandung, Indonesia
| | - Gracia Anastasya
- Department of Pharmaceutics and Pharmaceutical Technology, Universitas Padjadjaran, Bandung, Indonesia
| | - Annisa Luthfiyah Handini
- Department of Pharmaceutics and Pharmaceutical Technology, Universitas Padjadjaran, Bandung, Indonesia
| | - Ira Novianty Lestari
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Universitas Padjadjaran, Bandung, Indonesia
| | - Laila Subra
- Department of Pharmacy, Universiti Geomatika Malaysia, Kuala Lumpur, Malaysia
| | - Diah Lia Aulifa
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Universitas Padjadjaran, Bandung, Indonesia
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3
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Elmowafy M, Alruwaili NK, Ahmad N, Kassem AM, Ibrahim MF. Quercetin-Loaded Mesoporous Silica Nanoparticle-Based Lyophilized Tablets for Enhanced Physicochemical Features and Dissolution Rate: Formulation, Optimization, and In Vitro Evaluation. AAPS PharmSciTech 2022; 24:6. [PMID: 36447021 DOI: 10.1208/s12249-022-02464-w] [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: 08/24/2022] [Accepted: 11/08/2022] [Indexed: 12/05/2022] Open
Abstract
Mesoporous silica nanoparticles (MSNPs) have been proposed as a potential approach for stabilizing the amorphous state of poorly water-soluble actives. This study aimed to improve the physiochemical characteristics of poorly water-soluble quercetin (QT) through a novel lyophilized formulation. Various parameters, including solvent polarity, QT-carrier mass ratio, and adsorption time, were studied to improve the loading of QT into MSNPs. The optimized loaded MSNPs were formulated into lyophilized tablets through a freeze-drying process using hydrophilic polyvinylpyrrolidone (PVP-K30) as a polymeric stabilizer and water-soluble sucrose as a cryoprotectant. The effect of PVP-K30 and sucrose on the particle size, disintegration time, friability, and time required to release 90% of QT were studied using 32 full factorial design. The optimized formula was characterized using different evaluating techniques; for instance, differential scanning calorimetry, X-ray diffractometry, Fourier transform infrared spectroscopy, drug content, moisture content, and saturation solubility. The analysis proved that QT was consistently kept in the nanosize range with a narrow size distribution. The loaded silica nanoparticles and the optimized formulation are in an amorphous state devoid of any chemical interaction with the silica matrix or the lyophilization excipients. The optimized formula also featured low friability (less than 1%), fast disintegration (< 30 s), and a pronounced enhancement in saturation solubility and dissolution rate. Briefly, we established that the lyophilized MSNPs-based tablet would be a potential strategy for improving the rate of dissolution and, ultimately, the bioavailability of the poorly water-soluble QT.
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Affiliation(s)
- Mohammed Elmowafy
- Department of Pharmaceutics, College of Pharmacy, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia.
| | - Nabil K Alruwaili
- Department of Pharmaceutics, College of Pharmacy, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia
| | - Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia
| | - Abdulsalam M Kassem
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohamed F Ibrahim
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Cairo, Egypt
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Isabel CZ, Luis AD, Samuel ES, Elizabeth PS, Dea HR, Sergio AA. “Novel mucoadhesive PLGA-PVM/MA micro-nanocomposites loaded with felodipine intended for pulmonary administration by nebulization”. Int J Pharm 2022; 628:122295. [DOI: 10.1016/j.ijpharm.2022.122295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 10/31/2022]
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5
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Tella JO, Adekoya JA, Ajanaku KO. Mesoporous silica nanocarriers as drug delivery systems for anti-tubercular agents: a review. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220013. [PMID: 35706676 PMCID: PMC9174711 DOI: 10.1098/rsos.220013] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/27/2022] [Indexed: 05/03/2023]
Abstract
The treatment and management of tuberculosis using conventional drug delivery systems remain challenging due to the setbacks involved. The lengthy and costly treatment regime and patients' non-compliance have led to drug-resistant tuberculosis, which is more difficult to treat. Also, anti-tubercular drugs currently used are poor water-soluble drugs with low bioavailability and poor therapeutic efficiency except at higher doses which causes drug-related toxicity. Novel drug delivery carrier systems such as mesoporous silica nanoparticles (MSNs) have been identified as nanomedicines capable of addressing the challenges mentioned due to their biocompatibility. The review discusses the sol-gel synthesis and chemistry of MSNs as porous drug nanocarriers, surface functionalization techniques and the influence of their physico-chemical properties on drug solubility, loading and release kinetics. It outlines the physico-chemical characteristics of MSNs encapsulated with anti-tubercular drugs.
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Affiliation(s)
| | - Joseph Adeyemi Adekoya
- Department of Chemistry, College of Science and Technology, Covenant University, Ota 112212, Nigeria
| | - Kolawole Oluseyi Ajanaku
- Department of Chemistry, College of Science and Technology, Covenant University, Ota 112212, Nigeria
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6
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Redefinition to bilayer osmotic pump tablets as subterranean river system within mini-earth via three-dimensional structure mechanism. Acta Pharm Sin B 2022; 12:2568-2577. [PMID: 35646529 PMCID: PMC9136608 DOI: 10.1016/j.apsb.2021.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/11/2021] [Accepted: 10/24/2021] [Indexed: 11/24/2022] Open
Abstract
Defining and visualizing the three-dimensional (3D) structures of pharmaceuticals provides a new and important tool to elucidate the phenomenal behavior and underlying mechanisms of drug delivery systems. The mechanism of drug release from complex structured dosage forms, such as bilayer osmotic pump tablets, has not been investigated widely for most solid 3D structures. In this study, bilayer osmotic pump tablets undergoing dissolution, as well as after dissolution in a desiccated solid state were examined, and visualized by synchrotron radiation micro-computed tomography (SR-μCT). In situ formed 3D structures at different in vitro drug release states were characterized comprehensively. A distinct movement pattern of NaCl crystals from the push layer to the drug layer was observed, beneath the semi-permeable coating in the desiccated tablet samples. The 3D structures at different dissolution time revealed that the pushing upsurge in the bilayer osmotic pump tablet was directed via peripheral "roadways". Typically, different regions of the osmotic front, infiltration region, and dormant region were classified in the push layer during the dissolution of drug from tablet samples. According to the observed 3D microstructures, a "subterranean river model" for the drug release mechanism has been defined to explain the drug release mechanism.
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7
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Application of smart nanoparticles as a potential platform for effective colorectal cancer therapy. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213949] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Trzeciak K, Chotera-Ouda A, Bak-Sypien II, Potrzebowski MJ. Mesoporous Silica Particles as Drug Delivery Systems-The State of the Art in Loading Methods and the Recent Progress in Analytical Techniques for Monitoring These Processes. Pharmaceutics 2021; 13:pharmaceutics13070950. [PMID: 34202794 PMCID: PMC8309060 DOI: 10.3390/pharmaceutics13070950] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/17/2022] Open
Abstract
Conventional administration of drugs is limited by poor water solubility, low permeability, and mediocre targeting. Safe and effective delivery of drugs and therapeutic agents remains a challenge, especially for complex therapies, such as cancer treatment, pain management, heart failure medication, among several others. Thus, delivery systems designed to improve the pharmacokinetics of loaded molecules, and allowing controlled release and target specific delivery, have received considerable attention in recent years. The last two decades have seen a growing interest among scientists and the pharmaceutical industry in mesoporous silica nanoparticles (MSNs) as drug delivery systems (DDS). This interest is due to the unique physicochemical properties, including high loading capacity, excellent biocompatibility, and easy functionalization. In this review, we discuss the current state of the art related to the preparation of drug-loaded MSNs and their analysis, focusing on the newest advancements, and highlighting the advantages and disadvantages of different methods. Finally, we provide a concise outlook for the remaining challenges in the field.
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Monton C, Kulvanich P. Push-Pull Osmotic Pumps Using Crosslinked Hard Gelatin Capsule as a Structural Assembly for Delivery of Drugs with Different Water Solubilities. J Pharm Innov 2021. [DOI: 10.1007/s12247-021-09562-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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10
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Yu X, Liu T, Lin R. Development and Characterization of a Glimepiride-Loaded Gelatin-Coated Mesoporous Hollow Silica Nanoparticle Formulation and Evaluation of Its Hypoglycemic Effect on Type-2 Diabetes Model Rats. Assay Drug Dev Technol 2020; 18:369-378. [PMID: 33136434 DOI: 10.1089/adt.2020.987] [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] [Indexed: 01/04/2023] Open
Abstract
In this study, we prepared gelatin-coated mesoporous hollow silica nanospheres (GSN) as a drug carrier to improve the water solubility and regulate the release rate of glimepiride (GLM). GLM was loaded into GSN by an absorption method, and drug-loaded samples (GLM-GSN) were characterized by differential scanning calorimeter (DSC) and X-ray diffraction (XRD). Cellular uptake and in vivo intestinal uptake experiments were performed in rats. In addition, the studies of in-vitro drug dissolution, pharmacokinetics, and pharmacodynamic experiments also were performed. GLM-GSN showed excellent drug loading (39.7% ± 0.7%) and sustained GLM release. The state of GLM in GSN was amorphous according to DSC and XRD results. Cellular uptake and in vivo intestinal uptake experiments indicated that GSN could be effectively absorbed, and an MTT experiment demonstrated that GSN had good biocompatibility. Furthermore, the GLM-GSN had a higher bioavailability in pharmacokinetics experiments and a prominent hypoglycemic effect on type-2 diabetes model rats in pharmacodynamic experiments. This study clearly shows that GSN is a promising platform for delivering GLM for the treatment of type-2 diabetes.
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Affiliation(s)
- XueWen Yu
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Tao Liu
- Nursing College, Jinzhou Medical University, Jinzhou, P.R. China
| | - Rong Lin
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
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Seljak KB, Kocbek P, Gašperlin M. Mesoporous silica nanoparticles as delivery carriers: An overview of drug loading techniques. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101906] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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12
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Zero-order drug delivery: State of the art and future prospects. J Control Release 2020; 327:834-856. [PMID: 32931897 DOI: 10.1016/j.jconrel.2020.09.020] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 01/21/2023]
Abstract
Pharmaceutical drugs are an important part of the global healthcare system, with some estimates suggesting over 50% of the world's population takes at least one medication per day. Most drugs are delivered as immediate-release formulations that lead to a rapid increase in systemic drug concentration. Although these formulations have historically played an important role, they can be limited by poor patient compliance, adverse side effects, low bioavailability, or undesirable pharmacokinetics. Drug delivery systems featuring first-order release kinetics have been able to improve pharmacokinetics but are not ideal for drugs with short biological half-lives or small therapeutic windows. Zero-order drug delivery systems have the potential to overcome the issues facing immediate-release and first-order systems by releasing drug at a constant rate, thereby maintaining drug concentrations within the therapeutic window for an extended period of time. This release profile can be used to limit adverse side effects, reduce dosing frequency, and potentially improve patient compliance. This review covers strategies being employed to attain zero-order release or alter traditionally first-order release kinetics to achieve more consistent release before discussing opportunities for improving device performance based on emerging materials and fabrication methods.
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Yin X, Pan H, Liu H. A Novel Micron-Size Particulate Formulation of Felodipine with Improved Release and Enhanced Oral Bioavailability Fabricated by Coaxial Electrospray. AAPS PharmSciTech 2019; 20:282. [PMID: 31407104 DOI: 10.1208/s12249-019-1495-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/26/2019] [Indexed: 12/27/2022] Open
Abstract
The antihypertensive drug felodipine (FD) is a typical biopharmaceutics classification system (BCS) II drug; thus, improving the dissolution rate of FD is very important to enhance its bioavailability. Besides, according to the in situ "close loop" perfusion assay, we found that the jejunum is the main absorptive site, then the duodenum and ileum. Consequently, a novel micron-size particulate of FD in a core-shell structure was fabricated by a coaxial electrospray technique; within the drug delivery system, Hypromellose K4M (HPMC K4M) was selected as a sheath material to prolong the retention time in the upper GI tract, while povidone K30 (PVP K30) was mixed with FD in the inner layer. The dissolution study in three different media (0.02% Tween-80 solution; phosphate buffer containing 0.02% Tween-80, pH 6.8; and HCl solution containing 0.02% Tween-80, pH 1.2) demonstrated that FD-loaded coaxial electrospray particles (F-COES) could greatly improve the dissolution of FD. Furthermore, in vivo pharmacokinetics revealed that F-COES emerged no changes in the half-life but significantly prolonged the tmax and increased the oral bioavailability. Collectively, this work supplies a promising drug release system that will improve the dissolution and enhance the bioavailability simultaneously for those poorly water-soluble drugs mainly absorbed in the upper GI tract.
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Affiliation(s)
- Xuezhi Yin
- Zhejiang Tianyu Pharmaceutical CO., Ltd, Zhejiang, China
| | - Hao Pan
- College of Pharmacy, Liaoning University, Shenyang, 110036, China
| | - Hongfei Liu
- College of Pharmacy, Jiangsu University, No.301, Xuefu Road, Zhenjiang, 212013, China.
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Delivery of Poorly Soluble Drugs via Mesoporous Silica: Impact of Drug Overloading on Release and Thermal Profiles. Pharmaceutics 2019; 11:pharmaceutics11060269. [PMID: 31185610 PMCID: PMC6630575 DOI: 10.3390/pharmaceutics11060269] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 12/18/2022] Open
Abstract
Among the many methods available for solubility enhancement, mesoporous carriers are generating significant industrial interest. Owing to the spatial confinement of drug molecules within the mesopore network, low solubility crystalline drugs can be converted into their amorphous counterparts, which exhibit higher solubility. This work aims to understand the impact of drug overloading, i.e., above theoretical monolayer surface coverage, within mesoporous silica on the release behaviour and the thermal properties of loaded drugs. The study also looks at the inclusion of hypromellose acetate succinate (HPMCAS) to improve amorphisation. Various techniques including DSC, TGA, SEM, assay and dissolution were employed to investigate critical formulation factors of drug-loaded mesoporous silica prepared at drug loads of 100-300% of monolayer surface coverage, i.e., monolayer, double layer and triple layer coverage. A significant improvement in the dissolution of both Felodipine and Furosemide was obtained (96.4% and 96.2%, respectively). However, incomplete drug release was also observed at low drug load in both drugs, possibly due to a reversible adsorption to mesoporous silica. The addition of a polymeric precipitation inhibitor HPMCAS to mesoporous silica did not promote amorphisation. In fact, a partial coating of HPMCAS was observed on the exterior surface of mesoporous silica particles, which resulted in slower release for both drugs.
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Li Y, Pan H, Duan H, Chen J, Zhu Z, Fan J, Li P, Yang X, Pan W. Double-layered osmotic pump controlled release tablets of actarit: In vitro and in vivo evaluation. Asian J Pharm Sci 2018; 14:340-348. [PMID: 32104464 PMCID: PMC7032193 DOI: 10.1016/j.ajps.2018.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/17/2018] [Accepted: 05/17/2018] [Indexed: 12/29/2022] Open
Abstract
The aim of the study was to develop actarit double-layered osmotic pump tablets to overcome the weak points of actarit common tablets, such as short half-life and large plasma concentration fluctuations. Single factor experiment and orthogonal test were applied to optimize the formulation; the pharmacokinetic study was performed in beagle dogs adopting actarit common tablets as reference tablets. The optimal formulation was as follows: drug layer: 150 mg actarit, 240 mg PEO-N80, 50 mg NaCl; push layer: 140 mg PEO-WSR303, 20 mg NaCl; coating solution: 30 g cellulose acetate and 6 g PEG 4000 in 1000 ml 94% acetone solution, 60 mg coating weight gain. The pharmacokinetic study showed that Tmax was prolonged by the contrast of commercial common tablets with constant drug release rate, but the bioavailability was equivalent. And a good in vivo–in vitro correlation of the actarit osmotic pump tablets was also established. The designed actarit osmotic pump tablets can be applied for rheumatoid arthritis, proposing a promising replacement for the marked common products.
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Affiliation(s)
- Yuenan Li
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Hao Pan
- Liao Ning University, No. 66, Chongshan Middle Road, Huanggu District, Shenyang City, Liaoning Province 110036, China
| | - Hongliang Duan
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Jianting Chen
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Zhihong Zhu
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Jingxin Fan
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Pingfei Li
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Xinggang Yang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
| | - Weisan Pan
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang City, Liaoning Province 110016, China
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16
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Bai A, Wu C, Liu X, Lv H, Xu X, Cao Y, Shang W, Hu L, Liu Y. Development of a tin oxide carrier with mesoporous structure for improving the dissolution rate and oral relative bioavailability of fenofibrate. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:2129-2138. [PMID: 30022811 PMCID: PMC6044342 DOI: 10.2147/dddt.s166989] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background Biopharmaceutics classification system class II drugs have low solubility, which limits their extent and speed of absorption after oral administration. Over the years, mesoporous materials have been widely used to increase the dissolution rate and oral relative bioavailability of poorly water-soluble drugs. Objectives In order to improve the dissolution rate and increase oral relative bioavailability of the poorly water-soluble drugs, a tin oxide carrier (MSn) with a mesoporous structure was successfully synthesized. Methods In this study, MSn was synthesized using mesoporous silica material (SBA-15) as the template. Fenofibrate (FNB) was adsorbed into the channels of MSn by an adsorption method. Characterizations of the pure FNB, MSn, physical mixture of the drug and MSn (PM; 1:1) and FNB-loaded MSn (FNB-MSn) samples were carried out by the scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption/desorption, powder X-ray diffractometer (PXRD), differential scanning calorimetry (DSC) and Fourier transform infrared (FT-IR) spectroscopy. Cytotoxicity assay (MTT) was used to evaluate the cytotoxicity of MSn. In vitro dissolution studies were performed to investigate the dissolution rate of FNB-MSn. In vivo pharmacokinetic studies were used to investigate the changes of plasma drug concentrations of FNB-MSn tablets and commercial FNB tablets in rabbits. Results Detailed characterization showed that FNB in the channels of MSn was present in an amorphous state. The in vitro release tests demonstrated that MSn with a good biocompatibility could effectively enhance the dissolution rate of FNB. Pharmacokinetic results indicated that MSn significantly increased the oral relative bioavailability of FNB. Conclusion MSn can be regarded as a promising carrier for an oral drug delivery system.
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Affiliation(s)
- Andi Bai
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Chao Wu
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Xuan Liu
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Huiling Lv
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Xiaoyan Xu
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Yue Cao
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Wenjing Shang
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Lili Hu
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
| | - Ying Liu
- Department of Pharmaceutics, School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, Liaoning, People's Republic of China,
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Fu J, Cui L, Yang C, Xiong H, Ren G, Ma X, Jing Q, Ren F. Screen for Inhibitors of Crystal Growth to Identify Desirable Carriers for Amorphous Solid Dispersions Containing Felodipine. AAPS PharmSciTech 2018; 19:1231-1242. [PMID: 29302871 DOI: 10.1208/s12249-017-0942-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 12/16/2017] [Indexed: 11/30/2022] Open
Abstract
The solvent-shift method was used to identify appropriate polymers that inhibit the growth of felodipine crystals by monitoring particle size in supersaturated drug solutions in the presence of different polymers. We speculated that there would be an intermolecular interaction between the selected polymer (zein) and felodipine by extrapolating the inhibitory effect on crystal growth and then used the selected polymer as a carrier to prepare solid dispersions. The formulations were characterized by crystalline properties, thermodynamics of mixing, dissolution behavior, and physical stability. Powder x-ray diffraction and differential scanning calorimetry experiments indicated that amorphous solid dispersions were formed when the proportion of felodipine was < 30% (w/w). Stability tests showed that a solid dispersion with 20% felodipine remained in an amorphous state and was stable under accelerated storage conditions for 6 months. The dissolution rates of solid dispersions were significantly greater than those of the active pharmaceutical ingredient or physical mixtures. Analysis by Fourier-transform infrared spectroscopy and Raman microspectroscopy indicated the formation of intermolecular interactions between zein and felodipine. The study demonstrates the successful application of the chosen polymer as a carrier in solid dispersions and validates the concept of extrapolating the inhibitory effect on crystal growth to intermolecular interactions.
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Pi C, Feng T, Liang J, Liu H, Huang D, Zhan C, Yuan J, Lee RJ, Zhao L, Wei Y. Polymer blends used to develop felodipine-loaded hollow microspheres for improved oral bioavailability. Int J Biol Macromol 2018; 112:1038-1047. [PMID: 29432834 DOI: 10.1016/j.ijbiomac.2018.02.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/03/2018] [Accepted: 02/07/2018] [Indexed: 01/08/2023]
Abstract
Felodipine (FD) has been widely used in anti-hypertensive treatment. However, it has extremely low aqueous solubility and poor bioavailability. To address these problems, FD hollow microspheres as multiple-unit dosage forms were synthesized by a solvent diffusion evaporation method. Particle size of the hollow microspheres, types of ethylcellulose (EC), amounts of EC, polyvinyl pyrrolidone (PVP) and FD were investigated based on an orthogonal experiment of three factors and three levels. In addition, the release kinetics in vitro and pharmacokinetics in beagle dogs of the optimized FD hollow microspheres was investigated and compared with Plendil (commercial FD sustained-release tablets) as a single-unit dosage form. Results showed that the optimal formulation was composed of EC10 cp:PVP:FD (0.9:0.16:0.36, w/w). The FD hollow microspheres were globular with a hollow structure and have high drug loading (17.69±0.44%) and floating rate (93.82±4.05%) in simulated human gastric fluid after 24h. Pharmacokinetic data showed that FD hollow microspheres exhibited sustained-release behavior and significantly improved relative bioavailability of FD compared with the control. Pharmacodynamic study showed that the FD hollow microspheres could effectively lower blood pressure. Therefore, these findings demonstrated that the hollow microspheres were an effective sustained-release delivery system for FD.
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Affiliation(s)
- Chao Pi
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China
| | - Ting Feng
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China
| | - Jing Liang
- Department of Pharmacy, The Second Affiliated Hospital of the North Sichuan Medical College, Nanchong Central Hospital, No. 97, The People of South Rd, Nanchong, Sichuan 637000, PR China
| | - Hao Liu
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China
| | - Dongmei Huang
- Department of Cardiology, The Affiliated Hospital, Southwest Medical University, No.25, Taiping Street, Luzhou, Sichuan 646000, China
| | - Chenglin Zhan
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China
| | - Jiyuan Yuan
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China
| | - Robert J Lee
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Ling Zhao
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China.
| | - Yumeng Wei
- Department of Pharmaceutics, School of Pharmacy, Southwest Medical University, No. 3-5, Zhongshan Road, Luzhou, Sichuan 646000, PR China.
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Riikonen J, Xu W, Lehto VP. Mesoporous systems for poorly soluble drugs – recent trends. Int J Pharm 2018; 536:178-186. [DOI: 10.1016/j.ijpharm.2017.11.054] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/28/2022]
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Ren F, Fu J, Xiong H, Cui L, Ren G, Guan H, Jing Q. Complexes of Felodipine Nanoparticles With Zein Prepared Using a Dual Shift Technique. J Pharm Sci 2018; 107:239-249. [DOI: 10.1016/j.xphs.2017.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/15/2017] [Accepted: 09/27/2017] [Indexed: 12/25/2022]
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21
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Wang T, Liu Y, Wu C. Effect of Paclitaxel-Mesoporous Silica Nanoparticles with a Core-Shell Structure on the Human Lung Cancer Cell Line A549. NANOSCALE RESEARCH LETTERS 2017; 12:66. [PMID: 28116610 PMCID: PMC5256628 DOI: 10.1186/s11671-017-1826-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 12/30/2016] [Indexed: 05/13/2023]
Abstract
A nanodrug delivery system of paclitaxel-mesoporous silica nanoparticles with a core-shell structure (PAC-csMSN) was used to increase the dissolution of paclitaxel (PAC) and improve its treatment of lung cancer. PAC was loaded into the core-shell mesoporous silica nanoparticles (csMSN) by the adsorption equilibrium method and was in an amorphous state in terms of its mesoporous structure. In vitro and in vivo studies showed that csMSN increased the dissolution rate of PAC and improved its lung absorption. The area under concentration-time curve (AUC) value of PAC-csMSN used for pulmonary delivery in rabbits was 2.678-fold higher than that obtained with the PAC. After continuous administration for 3 days, a lung biopsy showed no signs of inflammation. Cell apoptosis results obtained by flow cytometry indicated that PAC-csMSN was more potent than pure PAC in promoting cell apoptosis. An absorption investigation of PAC-csMSN in A549 cells was carried out by transmission electron microscopy (TEM) and laser scanning confocal microscopy (LSCM). The obtained results indicated that the cellular uptake was time-dependent and csMSN was uptaken into the cytoplasm. All these results demonstrate that csMSN have the potential to achieve pulmonary inhalation administration of poorly water-soluble drugs for the treatment of lung cancer.
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Affiliation(s)
- Tieliang Wang
- Animal Husbandry and Veterinary Medicine School, Jinzhou Medical University, 40 Songpo Road, Linghe District, Jinzhou, Liaoning Province 121000 China
| | - Ying Liu
- Pharmacy School, Jinzhou Medical University, 40 Songpo Road, Linghe District, Jinzhou, Liaoning Province 121000 China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, 40 Songpo Road, Linghe District, Jinzhou, Liaoning Province 121000 China
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Maleki A, Kettiger H, Schoubben A, Rosenholm JM, Ambrogi V, Hamidi M. Mesoporous silica materials: From physico-chemical properties to enhanced dissolution of poorly water-soluble drugs. J Control Release 2017; 262:329-347. [PMID: 28778479 DOI: 10.1016/j.jconrel.2017.07.047] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 06/24/2017] [Accepted: 07/31/2017] [Indexed: 12/20/2022]
Abstract
New approaches in pharmaceutical chemistry have resulted in more complex drug molecules in the quest to achieve higher affinity to their targets. However, these 'highly active' drugs can also suffer from poor water solubility. Hence, poorly water soluble drugs became a major challenge in drug formulation, and this problem is increasing, as currently about 40 of the marketed drugs and 90% of drug candidates are classified as poorly water soluble. Various approaches exist to circumvent poor water solubility and poor dissolution rate in aqueous environment, however, each having disadvantages and certain limitations. Recently, mesoporous silica materials (MSMs) have been proposed to be used as matrices for enhancing the apparent solubility and dissolution rate of different drug molecules. MSMs are ideal candidates for this purpose, as silica is a "generally regarded as safe" (GRAS) material, is biodegradable, and can be readily surface-modified in order to optimize drug loading and subsequent release in the human body. The major advantage of mesoporous silica as drug delivery systems (DDSs) for poorly water soluble drugs lies in their pore size, pore morphology, and versatility in alteration of the surface groups, which can result in optimized interactions between a drug candidate and MSM carrier by modifying the pore surfaces. Furthermore, the drug of interest can be loaded into these pores in a preferably amorphous state, which can increase the drug dissolution properties dramatically. The highlights of this review include a critical discussion about the modification of the physico-chemical properties of MSMs and how these physico-chemical modifications influence the drug loading and the subsequent dissolution of poorly water soluble drugs. It aims to further promote the use of MSMs as alternative strategy to common methods like solubility enhancement by cyclodextrins, micronization, or microemulsion techniques. This review can provide guidance on how to tailor MSMs to achieve optimized drug loading and drug dissolution.
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Affiliation(s)
- Aziz Maleki
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan University of Medical Sciences, Zanjan, Iran
| | - Helene Kettiger
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, FI-20520 Turku, Finland
| | - Aurélie Schoubben
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | - Jessica M Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, FI-20520 Turku, Finland.
| | - Valeria Ambrogi
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan University of Medical Sciences, Zanjan, Iran.
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Yang Y, Zhao Z, Wang Y, Yang L, Liu D, Yang X, Pan W. A novel asymmetric membrane osmotic pump capsule with in situ formed delivery orifices for controlled release of gliclazide solid dispersion system. Int J Pharm 2016; 506:340-50. [PMID: 27132166 DOI: 10.1016/j.ijpharm.2016.04.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 04/07/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
In this study, a novel asymmetric membrane osmotic pump capsule of gliclazide (GLC) solid dispersion was developed to achieve a controlled drug release. The capsule shells were obtained by wet phase inversion process using cellulose acetate as semi-permeable membrane, glycerol and kolliphor P188 as pore formers, then filled with the mixture of GLC solid dispersion and pH modifiers. Differentiate from the conventional formulations, sodium carbonate was chosen as the osmotic agent and effervescent agent simultaneously to control the drug release, instead of the polymer materials. The ternary solid dispersion of GLC, with polyethylene glycol 6000 and kolliphor P188 as carriers, was prepared by solvent-evaporation method, realizing a 2.09-fold increment in solubility and dissolution rate in comparison with unprocessed GLC. Influence of the composition of the coating solution and pH modifiers on the drug release from the asymmetric membrane capsule (AMC) was investigated. The ultimate cumulative release of the optimal formulation reached 91.32% in an approximately zero-order manner. The osmotic pressure test and dye test were conducted to validate the drug release mechanism from the AMC. The in vivo pharmacokinetic study of the AMC indicated a 102.66±10.95% relative bioavailability compared with the commercial tablet, suggesting the bioequivalence between the two formulations. Consequently, the novel controlled delivery system with combination of solid dispersion and AMC system is capable of providing a satisfactory alternative to release the water-insoluble drugs in a controlled manner.
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Affiliation(s)
- Yue Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Zhinan Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Yongfei Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Lu Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Dandan Liu
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi 117004, PR China
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
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Hao Y, Wu C, Zhao Z, Zhao Y, Xu J, Qiu Y, Jiang J, Yu T, Ma C, Zhou B. Development of a novel starch with a three-dimensional ordered macroporous structure for improving the dissolution rate of felodipine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:1131-7. [DOI: 10.1016/j.msec.2015.09.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/12/2015] [Accepted: 09/02/2015] [Indexed: 11/25/2022]
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25
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Liu Y, Wu C, Hao Y, Xu J, Zhao Y, Qiu Y, Jiang J, Yu T, Ji P. Preparation of a novel starch-derived three-dimensional ordered macroporous carbon for improving the dissolution rate and oral bioavailability of water-insoluble drugs. J Pharm Biomed Anal 2016; 118:267-275. [DOI: 10.1016/j.jpba.2015.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 10/31/2015] [Accepted: 11/03/2015] [Indexed: 12/24/2022]
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26
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Bhatt B, Kumar V. Regenerated Cellulose Capsules for Controlled Drug Delivery, Part 2: Modulating Membrane Permeability by Incorporation of Depolymerized Cellulose and Altering Membrane Thickness. J Pharm Sci 2015; 104:4266-4275. [DOI: 10.1002/jps.24664] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 08/27/2015] [Accepted: 09/09/2015] [Indexed: 11/11/2022]
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27
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Jing B, Wang Z, Yang R, Zheng X, Zhao J, Tang S, He Z. Enhanced oral bioavailability of felodipine by novel solid self-microemulsifying tablets. Drug Dev Ind Pharm 2015; 42:506-12. [DOI: 10.3109/03639045.2015.1058816] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Boyu Jing
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China and
- Department of Pharmaceutics, Traditional Medicine Institution of Liaoning Province, Shenyang, China
| | - Zhiyuan Wang
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China and
| | - Rui Yang
- Department of Pharmaceutics, Traditional Medicine Institution of Liaoning Province, Shenyang, China
| | - Xia Zheng
- Department of Pharmaceutics, Traditional Medicine Institution of Liaoning Province, Shenyang, China
| | - Jia Zhao
- Department of Pharmaceutics, Traditional Medicine Institution of Liaoning Province, Shenyang, China
| | - Si Tang
- Department of Pharmaceutics, Traditional Medicine Institution of Liaoning Province, Shenyang, China
| | - Zhonggui He
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China and
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Zhao Y, Wu C, Zhao Z, Hao Y, Xu J, Yu T, Qiu Y, Jiang J. Preparation of starch macrocellular foam for increasing the dissolution rate of poorly water-soluble drugs. Pharm Dev Technol 2015; 21:749-54. [PMID: 26166407 DOI: 10.3109/10837450.2015.1055763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Starch macrocellular foam (SMF), a novel natural bio-matrix material, was prepared by the hard template method in order to improve the dissolution rate and oral bioavailability of poorly water-soluble drugs. Nitrendipine (NDP) was chosen as a model drug and was loaded into SMF by the solvent evaporation method. SMF and the loaded SMF samples (NDP-SMF) were characterized by scanning electron microscopy, differential scanning calorimetry, X-ray powder diffraction and Fourier transform infrared spectroscopy. In vitro drug release studies showed that SMF significantly increased the dissolution rate of NDP. In vivo studies showed that the NDP-SMF tablets clearly increased the oral bioavailability of NDP in comparison with the reference commercial tablets. All the results obtained demonstrated that SMF was a promising carrier for the oral delivery of poor water-soluble drugs.
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Affiliation(s)
- Ying Zhao
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Chao Wu
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Zongzhe Zhao
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Yanna Hao
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Jie Xu
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Tong Yu
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Yang Qiu
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
| | - Jie Jiang
- a Pharmacy School, Liaoning Medical University, Linghe District , Jinzhou , Liaoning Province , P.R. China
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