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Mamai M, Giasafaki D, Salvanou EA, Charalambopoulou G, Steriotis T, Bouziotis P. Biodistribution of Mesoporous Carbon Nanoparticles via Technetium-99m Radiolabelling after Oral Administration to Mice. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3260. [PMID: 34947611 PMCID: PMC8703805 DOI: 10.3390/nano11123260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 02/06/2023]
Abstract
The use of ordered mesoporous matrices, and in particular carbon-based mesoporous nanoparticles has shown great potential towards enhancing the bioavailability of orally administered drugs. Nevertheless, elucidation of the in vivo absorption, distribution, and excretion of such carriers is essential for understanding their behaviour, and radiolabelling provides a very useful way to track their occurrence inside the body. In this work, uniform spherical CMK-1-type ordered mesoporous carbon nanoparticles have been radiolabelled with Technetium-99m (99mTc) and traced after oral administration to mice. Ex vivo biodistribution studies showed that the radiolabelled nanoparticles accumulated almost exclusively in the gastrointestinal tract; complete elimination of the radiotracer was observed within 24 h after administration, with practically no uptake into other main organs. These findings along with the results from in vitro stability studies indicate that the spherical carbon nanoparticles examined could be safely used as drug carriers with minimal side effects, but also support the great value of radiolabelling methods for monitoring the particles' behaviour in vivo.
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Affiliation(s)
- Maria Mamai
- Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (M.M.); (E.-A.S.)
- Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (D.G.); (T.S.)
| | - Dimitra Giasafaki
- Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (D.G.); (T.S.)
| | - Evangelia-Alexandra Salvanou
- Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (M.M.); (E.-A.S.)
| | - Georgia Charalambopoulou
- Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (M.M.); (E.-A.S.)
| | - Theodore Steriotis
- Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (D.G.); (T.S.)
| | - Penelope Bouziotis
- Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Athens, Greece; (M.M.); (E.-A.S.)
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Öztürk K, Arslan FB, Öztürk SC, Çalış S. Mixed micelles formulation for carvedilol delivery: In-vitro characterization and in-vivo evaluation. Int J Pharm 2021; 611:121294. [PMID: 34793934 DOI: 10.1016/j.ijpharm.2021.121294] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/15/2021] [Accepted: 11/10/2021] [Indexed: 01/19/2023]
Abstract
Carvedilol (CAR) is a widely studied, beta and alpha-1 blocker, antihypertensive drug due to its poor water solubility and low oral bioavailability (25-35%). The aim of this work is to improve poor water solubility and the pharmacokinetic parameters of carvedilol by using an optimized and self-assembly prepared micelle formulation. Optimized micelle formulation composed of Pluronic® F127, D-α-tocopheryl polyethylene glycol 1000 succinate, L-cysteine HCl in a ratio of 4:3:3. Micellar size, polydispersity index, zeta potential, morphology, critical micelle concentration, thermal behaviors, in-vitro dissolution of micelles and pharmacokinetic parameters in rats were characterized in this study. Carvedilol aqueous solubility increased (up to 271-fold) as a result of its encapsulation within a mixed micelle formulation. The measured micellar sizes of blank and carvedilol loaded mixed micelles are lower than 30 nm with size distributions of 26.69 ± 2.93 nm and 24.16 ± 4.89 nm, respectively. Transmission electron microscopy revealed that the micelles were spherically shaped. There is a significant enhancement of carvedilol dissolution compared to commercially available tablet formulation (f2 < 50). The in-vivo test demonstrated that the t1/2 and AUC0-∞ values of micelles were approximately 10.89- and 2.65-fold greater than that of the commercial tablets, respectively. Based on our study, bring such applications into being may provide effective new drugs for treatment armamentarium of cardiovascular diseases and hypertension in near future.
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Affiliation(s)
- Kıvılcım Öztürk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey.
| | - Fatma Betül Arslan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey
| | - Süleyman Can Öztürk
- Centre for Laboratory Animals Research and Application, Hacettepe University, Ankara, Turkey
| | - Sema Çalış
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey
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Rigaud S, Mathiron D, Moufawad T, Landy D, Djedaini-Pilard F, Marçon F. Cyclodextrin Complexation as a Way of Increasing the Aqueous Solubility and Stability of Carvedilol. Pharmaceutics 2021; 13:1746. [PMID: 34834163 PMCID: PMC8620534 DOI: 10.3390/pharmaceutics13111746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/24/2022] Open
Abstract
We studied the effect of several CDs on carvedilol's solubility and chemical stability in various aqueous media. Our present results show that it is possible to achieve a carvedilol concentration of 5 mg/mL (12.3 mM) in the presence of 5 eq of γCD or RAMEB in an aqueous medium with an acceptable acid pH (between 3.5 and 4.7). Carvedilol formed 1:1 inclusion complexes but those with RAMEB appear to be stronger (K = 317 M-1 at 298 K) than that with γCD (K = 225 M-1 at 298 K). The complexation of carvedilol by RAMEB significantly increased the drug's photochemical stability in aqueous solution. These results might constitute a first step towards the development of a novel oral formulation of carvedilol.
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Affiliation(s)
- Sébastien Rigaud
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources UMR 7378 CNRS, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - David Mathiron
- Plateforme-Analytique, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - Tarek Moufawad
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), ULCO, F-59140 Dunkerque, France; (T.M.); (D.L.)
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), ULCO, F-59140 Dunkerque, France; (T.M.); (D.L.)
| | - Florence Djedaini-Pilard
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources UMR 7378 CNRS, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - Frédéric Marçon
- Laboratoire AGIR UR4294, Université de Picardie Jules Verne, 1 Rue des Louvels, F-80039 Amiens, France;
- Pharmacie à Usage Intérieur, Centre Hospitalier Universitaire d’Amiens-Picardie, 1 Rue du Professeur Christian Cabrol, F-80054 Amiens, France
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Attia MS, Hassaballah MY, Abdelqawy MA, Emad-Eldin M, Farag AK, Negida A, Ghaith H, Emam SE. An updated review of mesoporous carbon as a novel drug delivery system. Drug Dev Ind Pharm 2021; 47:1029-1037. [PMID: 34590548 DOI: 10.1080/03639045.2021.1988097] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The nanotechnology approach has been recently adopted to provide more reliable, effective, controlled, and safe drug delivery systems. Nanostructured materials have gained great interest, including siliceous and carbonaceous nanoparticles. The effectiveness of mesoporous carbon nanoparticles (MCNs) in tumor imaging, targeting, and treatment is urging for more future studies. MCNs possess superior properties such as their biocompatibility, large surface area, large pore volume, tunability, and more responsive behavior to internal and external release triggers. These outstanding features make MCNs more applicable for stimuli-responsive drug delivery than the conventional forms of mesoporous silica nanoparticles (MSNs) and other carbon nanoparticles. In this review, we outlined the latest updates regarding the safety, benefits, and potential applications of MCNs.
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Affiliation(s)
- Mohamed S Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | | | | | - Mahmoud Emad-Eldin
- Department of Pharmacy Practice, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Aya K Farag
- Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Ahmed Negida
- Zagazig University Hospitals, Zagazig University, Zagazig, Egypt.,Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hazem Ghaith
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Sherif E Emam
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Goscianska J, Ejsmont A, Olejnik A, Ludowicz D, Stasiłowicz A, Cielecka-Piontek J. Design of Paracetamol Delivery Systems Based on Functionalized Ordered Mesoporous Carbons. MATERIALS 2020; 13:ma13184151. [PMID: 32961932 PMCID: PMC7560326 DOI: 10.3390/ma13184151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/25/2022]
Abstract
The oxidized ordered mesoporous carbons of cubic and hexagonal structure obtained by two templating methods (soft and hard) were applied for the first time as delivery systems for paracetamol—the most common antipyretic and analgesic drug in the world. The process of carbon oxidation was performed using an acidic ammonium persulfate solution at 60 °C for 6 h. The functionalization was found to reduce the specific surface area and pore volume of carbon materials, but it also led to an increasing number of acidic oxygen-containing functional groups. The most important element and the novelty of the presented study was the evaluation of adsorption and release ability of carbon carriers towards paracetamol. It was revealed that the sorption capacity and the drug release rate were mainly affected by the materials’ textural parameters and the total amount of surface functional groups, notably different in pristine and oxidized samples. The adsorption of paracetamol on the surface of ordered mesoporous carbons occurred according to different mechanisms: donor–acceptor complexes and hydrogen bond formation. The adsorption kinetics was assessed using pseudo-first- and pseudo-second-order models. The regression results indicated that the adsorption kinetics was more accurately represented by the pseudo-second-order model. Paracetamol was adsorbed onto the carbon materials studied following the Langmuir type isotherm. The presence of oxygen-containing functional groups on the surface of ordered mesoporous carbons enhanced the amount of paracetamol adsorbed and its release rate. The optimal drug loading capacity and expected release pattern exhibited oxidized ordered mesoporous carbon with a hexagonal structure obtained by the hard template method.
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Affiliation(s)
- Joanna Goscianska
- Department of Chemical Technology, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.E.); (A.O.)
- Correspondence: (J.G.); (J.C.-P.)
| | - Aleksander Ejsmont
- Department of Chemical Technology, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.E.); (A.O.)
| | - Anna Olejnik
- Department of Chemical Technology, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.E.); (A.O.)
| | - Dominika Ludowicz
- Department of Pharmacognosy, Faculty of Pharmacy, Poznań University of Medical Sciences, Święcickiego 4, 61-781 Poznań, Poland; (D.L.); (A.S.)
| | - Anna Stasiłowicz
- Department of Pharmacognosy, Faculty of Pharmacy, Poznań University of Medical Sciences, Święcickiego 4, 61-781 Poznań, Poland; (D.L.); (A.S.)
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy, Faculty of Pharmacy, Poznań University of Medical Sciences, Święcickiego 4, 61-781 Poznań, Poland; (D.L.); (A.S.)
- Correspondence: (J.G.); (J.C.-P.)
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Resveratrol Nanoparticles: A Promising Therapeutic Advancement over Native Resveratrol. Processes (Basel) 2020. [DOI: 10.3390/pr8040458] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The importance of fruit-derived resveratrol (RES) in the treatment of various diseases has been discussed in various research publications. Those research findings have indicated the ability of the molecule as therapeutic in the context of in vitro and in vivo conditions. Mostly, the application of RES in in vivo conditions, encapsulation processes have been carried out using various nanoparticles that are made of biocompatible biomaterials, which are easily digested or metabolized, and RES is absorbed effectively. These biomaterials are non-toxic and are safe to be used as components in the biotherapeutics. They are made from naturally available by-products of food materials like zein or corn or components of the physiological system as with lipids. The versatility of the RES nanoparticles in their different materials, working range sizes, specificity in their targeting in various human diseases, and the mechanisms associated with them are discussed in this review.
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Crystal Structural Analysis of DL-Mandelate Salt of Carvedilol and Its Correlation with Physicochemical Properties. CRYSTALS 2020. [DOI: 10.3390/cryst10010053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A 1:1 salt of carvedilol (CVD), an anti-hypertensive drug, with DL-mandelic acid (DL-MA) was crystallized from ethanol and the structure was characterized by X-ray single-crystal diffraction, revealing salt formation by transfer of an acidic proton from the COOH group of MA to the aliphatic (acyclic) secondary amino NH group of CVD. The crystal structure is triclinic, with a P-1 space group and unit cell parameters a = 9.8416(5) Å, b = 11.4689(5) Å, c = 14.0746(7) Å, α = 108.595(8), β = 95.182(7), γ = 107.323(8), V = 1406.95(15) Å3, and Z = 2. The asymmetric unit contained one protonated CVD and one MA anion, linked via an N+–H∙∙∙O¯ strong hydrogen bond and a ratio of 1:1. As previously reported, the thermal, spectroscopic, and powder X-ray diffraction properties of the salt of CVD with DL-MA (CVD_DL-MA) differed from CVD alone. The intrinsic dissolution rate of CVD_DL-MA was about 10.7 times faster than CVD alone in a pH 6.8 buffer.
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Özçelik N, Bayrakçeken Yurtcan A. Drug loading with supercritical carbon dioxide deposition on different silica derivatives: Carvedilol study. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Fan C, Kong F, Shetti D, Zhang B, Yang Y, Wei K. Resveratrol loaded oxidized mesoporous carbon nanoparticles: A promising tool to treat triple negative breast cancer. Biochem Biophys Res Commun 2019; 519:378-384. [PMID: 31519327 DOI: 10.1016/j.bbrc.2019.09.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 09/06/2019] [Indexed: 01/25/2023]
Abstract
Currently, breast cancer has become the most commonly diagnosed malignancy among females and triple negative breast cancer (TNBC) is a highly aggressive and metastatic subtype. The natural polyphenolic compound, resveratrol (3, 4', 5-trihydroxy-trans-stilbene, RES), has drawn great attention for its potential against TNBC. However, due to the poor aqueous solubility, the bioactivity of RES against TNBC is extremely hampered. In this study, oxidized mesoporous carbon nanoparticles (oMCNs) with size below 200 nm and excellent water dispersibility were synthesized using mild oxidation method and RES was successfully encapsulated into the pores of oMCNs with high drug loading efficiency (24.8% w/w). oMCNs exhibited good biocompatibility and excellent cellular uptake efficiency. Compared to pure RES, oMCNs-RES greatly improved the saturated solubility and in vitro release property. In vitro cytoxicity assay and apoptosis analysis showed that oMCNs-RES induced enhanced cytotoxic effect and pro-apoptosis effect mediated via the PARP and Caspase-3 protein cleavage in TNBC cell line, respectively. These results demonstrate oMCNs have the potential to deliver hydrophobic drugs and oMCNs-RES are promising in treating TNBC.
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Affiliation(s)
- Conghui Fan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Fanhui Kong
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Dattatrya Shetti
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Bao Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Yeguo Yang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China.
| | - Kun Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China.
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Pontes-Neto JG, Lyra MA, Soares MF, Chaves LL, Soares-Sobrinho JL. Intercalation of olanzapine into CaAl and NiAl Layered Double Hydroxides for dissolution rate improvement: Synthesis, characterization and in vitro toxicity. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wang X, Pan H, Lin Q, Wu H, Jia S, Shi Y. One-Step Synthesis of Nitrogen-Doped Hydrophilic Mesoporous Carbons from Chitosan-Based Triconstituent System for Drug Release. NANOSCALE RESEARCH LETTERS 2019; 14:259. [PMID: 31363913 PMCID: PMC6667578 DOI: 10.1186/s11671-019-3075-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
In situ nitrogen-doped hydrophilic mesoporous carbon spheres with different carbon-to-silicon (C/Si) ratios (NMCs-x/3, x = 5, 6, 7, and 8) were prepared by one-step method coupled with a spray drying and carbonizing technique, in which triblock copolymer (F127) and tetraethyl orthosilicate (TEOS) were used as template agents, and biocompatible chitosan (CS) was used as the carbon source and nitrogen source. These carbon materials were characterized by TG, BET, XRD, Raman, FTIR, TEM, XPS, and contact angle measuring device. The adsorption and release properties of mesoporous carbon materials for the poorly soluble antitumor drug hydroxycamptothecin (HCPT) were investigated. Results showed that nanospherical mesoporous carbon materials were successfully prepared with high specific surface area (2061.6 m2/g), narrowly pore size distribution (2.01-3.65 nm), and high nitrogen content (4.75-6.04%). Those NMCs-x showed a satisfactory hydrophilicity, which gradually increased with the increasing of surface N content. And the better hydrophilicity of NMCs-x was, the larger adsorption capacity for HCPT. The absorption capacity of NMCs-x towards HCPT was in the following orders: qNMCs-5/3 > qNMCs-6/3 > qNMCs-7/3 > qNMCs-8/3. NMCs-5/3 had the largest saturated adsorption capacity of HCPT (1013.51 mg g-1) and higher dissolution rate (93.75%).
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Affiliation(s)
- Xianshu Wang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025 Guizhou People’s Republic of China
| | - Hongyan Pan
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
| | - Qian Lin
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
| | - Hong Wu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
| | - Shuangzhu Jia
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
| | - Yongyong Shi
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025 Guizhou People’s Republic of China
- Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, 550025 Guizhou People’s Republic of China
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Rashid M, Malik MY, Singh SK, Chaturvedi S, Gayen JR, Wahajuddin M. Bioavailability Enhancement of Poorly Soluble Drugs: The Holy Grail in Pharma Industry. Curr Pharm Des 2019; 25:987-1020. [DOI: 10.2174/1381612825666190130110653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Background:
Bioavailability, one of the prime pharmacokinetic properties of a drug, is defined as the
fraction of an administered dose of unchanged drug that reaches the systemic circulation and is used to describe
the systemic availability of a drug. Bioavailability assessment is imperative in order to demonstrate whether the
drug attains the desirable systemic exposure for effective therapy. In recent years, bioavailability has become
the subject of importance in drug discovery and development studies.
Methods:
A systematic literature review in the field of bioavailability and the approaches towards its enhancement
have been comprehensively done, purely focusing upon recent papers. The data mining was performed
using databases like PubMed, Science Direct and general Google searches and the collected data was exhaustively
studied and summarized in a generalized manner.
Results:
The main prospect of this review was to generate a comprehensive one-stop summary of the numerous
available approaches and their pharmaceutical applications in improving the stability concerns, physicochemical
and mechanical properties of the poorly water-soluble drugs which directly or indirectly augment their bioavailability.
Conclusion:
The use of novel methods, including but not limited to, nano-based formulations, bio-enhancers,
solid dispersions, lipid-and polymer-based formulations which provide a wide range of applications not only
increases the solubility and permeability of the poorly bioavailable drugs but also improves their stability, and
targeting efficacy. Although, these methods have drastically changed the pharmaceutical industry demand for the
newer potential methods with better outcomes in the field of pharmaceutical science to formulate various dosage
forms with adequate systemic availability and improved patient compliance, further research is required.
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Affiliation(s)
- Mamunur Rashid
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Mohd Yaseen Malik
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Sandeep K. Singh
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Swati Chaturvedi
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Jiaur R Gayen
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
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Taveira SF, Varela-Garcia A, Dos Santos Souza B, Marreto RN, Martin-Pastor M, Concheiro A, Alvarez-Lorenzo C. Cyclodextrin-based poly(pseudo)rotaxanes for transdermal delivery of carvedilol. Carbohydr Polym 2018; 200:278-288. [PMID: 30177168 DOI: 10.1016/j.carbpol.2018.08.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/30/2018] [Accepted: 08/05/2018] [Indexed: 01/10/2023]
Abstract
This work aimed to design supramolecular gels combining Soluplus or Solutol and alfa- and hydroxypropyl-β-cyclodextrin (α-CD, HPβ-CD) for carvedilol (CAR) transdermal delivery. Poly(pseudo)rotaxane formation (appearance, SEM, 1H NMR), drug solubilization, rheological properties and in vitro release were investigated. CAR-CD complexes were prepared in situ or by spray drying. For Solutol, poly(pseudo)rotaxanes were formed immediately after mixing with α-CD and did not influence CAR solubility. Differently, Soluplus poly(pseudo)rotaxanes took 24-48 h to be formed and CAR solubility decreased compared to Soluplus micelles. Soluplus 20% + α-CD (5-10%) showed higher G' and G'' but also faster CAR release than Solutol poly(pseudo)rotaxanes, which is explained by the different location of PEG chains in the two amphiphilic polymers. Faster drug release was achieved incorporating HPβ-CD or CAR-HPβ-CD spray-dried complexes. The results evidenced the versatility of the formulations in terms of rheological behavior and drug release patterns, which can be adjusted for CAR transdermal delivery.
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Affiliation(s)
- Stephânia Fleury Taveira
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil.
| | - Angela Varela-Garcia
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Bruno Dos Santos Souza
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil
| | - Ricardo Neves Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil
| | - Manuel Martin-Pastor
- Unidad de Resonancia Magnética Nuclear, RIAIDT, Edificio CACTUS, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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15
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Chen J, Pan H, Yang Y, Xiong S, Duan H, Yang X, Pan W. Self-assembled liposome from multi-layered fibrous mucoadhesive membrane for buccal delivery of drugs having high first-pass metabolism. Int J Pharm 2018; 547:303-314. [DOI: 10.1016/j.ijpharm.2018.05.062] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/13/2018] [Accepted: 05/24/2018] [Indexed: 11/16/2022]
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16
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Yin YF, Guo Y, Song WD, Duan XC, Zheng XC, Zhong T, Zhang S, Yao X, Xu MQ, Zhang Q, Zhang X. Improving Solubility and Oral Bioavailability of Febuxostat by Polymer-Coated Nanomatrix. AAPS PharmSciTech 2018; 19:934-940. [PMID: 29079988 DOI: 10.1208/s12249-017-0905-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/08/2017] [Indexed: 11/30/2022] Open
Abstract
Here, the mesoporous silica (Sylysia 350) was selected as mesoporous material, hydroxypropyl methylcellulose (HPMC) was selected as crystallization inhibitor, and febuxostat (FBT) was selected as model drug, respectively. The FBT-Sylysia-HPMC nanomatrix (FBT@SHN) was prepared. The characteristics of FBT@SHN were investigated in vitro and in vivo. Our results indicated that the FBT in FBT@SHN was in amorphous form. The solubility and dissolution of FBT in FBT@SHN were significantly increased. The oral bioavailability of FBT in FBT@SHN was greatly improved 5.8-fold compared with that in FBT suspension. This nanomatrix could be used as a drug delivery platform for improving the oral bioavailability.
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17
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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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18
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Activated carbon as a carrier for amorphous drug delivery: Effect of drug characteristics and carrier wettability. Eur J Pharm Biopharm 2017; 115:197-205. [DOI: 10.1016/j.ejpb.2017.03.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/06/2017] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
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19
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Abstract
Drug molecules transformed into nanoparticles or endowed with nanostructures with or without the aid of carrier materials are referred to as "nanomedicines" and can overcome some inherent drawbacks of free drugs, such as poor water solubility, high drug dosage, and short drug half-life in vivo. However, most of the existing nanomedicines possess the drawback of low drug-loading (generally less than 10%) associated with more carrier materials. For intravenous administration, the extensive use of carrier materials might cause systemic toxicity and impose an extra burden of degradation, metabolism, and excretion of the materials for patients. Therefore, on the premise of guaranteeing therapeutic effect and function, reducing or avoiding the use of carrier materials is a promising alternative approach to solve these problems. Recently, high drug-loading nanomedicines, which have a drug-loading content higher than 10%, are attracting increasing interest. According to the fabrication strategies of nanomedicines, high drug-loading nanomedicines are divided into four main classes: nanomedicines with inert porous material as carrier, nanomedicines with drug as part of carrier, carrier-free nanomedicines, and nanomedicines following niche and complex strategies. To date, most of the existing high drug-loading nanomedicines belong to the first class, and few research studies have focused on other classes. In this review, we investigate the research status of high drug-loading nanomedicines and discuss the features of their fabrication strategies and optimum proposal in detail. We also point out deficiencies and developing direction of high drug-loading nanomedicines. We envision that high drug-loading nanomedicines will occupy an important position in the field of drug-delivery systems, and hope that novel perspectives will be proposed for the development of high drug-loading nanomedicines.
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Affiliation(s)
- Shihong Shen
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, People’s Republic of China
| | - Youshen Wu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, People’s Republic of China
| | - Yongchun Liu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, People’s Republic of China
| | - Daocheng Wu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, People’s Republic of China
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20
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Hiendrawan S, Widjojokusumo E, Veriansyah B, Tjandrawinata RR. Pharmaceutical Salts of Carvedilol: Polymorphism and Physicochemical Properties. AAPS PharmSciTech 2017; 18:1417-1425. [PMID: 27600325 DOI: 10.1208/s12249-016-0616-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/11/2016] [Indexed: 12/27/2022] Open
Abstract
We report novel pharmaceutical salts of an anti-hypertensive drug carvedilol (CVD) with pharmaceutically acceptable salt formers, including oxalic acid (OXA), fumaric acid (FUMA), benzoic acid (BZA), and mandelic acid (MDA) via conventional solvent evaporation technique. The pKa difference between CVD and selected acids was greater than 3, thus suggesting salt formation. Two polymorphic forms of CVD/MDA salts and one p-Dioxane solvate of CVD/FUMA salt were also reported in this paper. The salts were characterized by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Stability of the salts was assessed by storage at 40°C/75% RH for 1 month. All CVD salts exhibited higher solubility in phosphate buffer solution pH 6.8 compared to the parent drug CVD and showed good stability in accelerated ICH conditions at 40°C/75% RH for 1 month. CVD/FUMA salt showed the highest solubility (1.78 times). Based on thermal analysis and slurry experiment, it was found that CVD/MDA polymorphs were related monotropically with Form 1 as the stable form. The results suggested that salt formation could be an alternative method to improve CVD solubility.
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21
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Zhao Q, Lin Y, Han N, Li X, Geng H, Wang X, Cui Y, Wang S. Mesoporous carbon nanomaterials in drug delivery and biomedical application. Drug Deliv 2017; 24:94-107. [PMID: 29124979 PMCID: PMC8812584 DOI: 10.1080/10717544.2017.1399300] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Recent development of nano-technology provides highly efficient and versatile treatment methods to achieve better therapeutic efficacy and lower side effects of malignant cancer. The exploration of drug delivery systems (DDSs) based on nano-material shows great promise in translating nano-technology to clinical use to benefit patients. As an emerging inorganic nanomaterial, mesoporous carbon nanomaterials (MCNs) possess both the mesoporous structure and the carbonaceous composition, endowing them with superior nature compared with mesoporous silica nanomaterials and other carbon-based materials, such as carbon nanotube, graphene and fullerene. In this review, we highlighted the cutting-edge progress of carbon nanomaterials as drug delivery systems (DDSs), including immediate/sustained drug delivery systems and controlled/targeted drug delivery systems. In addition, several representative biomedical applications of mesoporous carbon such as (1) photo-chemo synergistic therapy; (2) delivery of therapeutic biomolecule and (3) in vivo bioimaging are discussed and integrated. Finally, potential challenges and outlook for future development of mesoporous carbon in biomedical fields have been discussed in detail.
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Affiliation(s)
- Qinfu Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Yuanzhe Lin
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Ning Han
- School of Chinese Materia Medica, Department of Chinese Medicinal Pharmaceutics, Beijing university of Chinese Medicine, Beijing, PR China
| | - Xian Li
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Hongjian Geng
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Xiudan Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Yu Cui
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Siling Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
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22
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Study of the solubility, photostability and structure of inclusion complexes of carvedilol with β-cyclodextrin and (2-hydroxypropyl)-β-cyclodextrin. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0635-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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23
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Hamed R, Awadallah A, Sunoqrot S, Tarawneh O, Nazzal S, AlBaraghthi T, Al Sayyad J, Abbas A. pH-Dependent Solubility and Dissolution Behavior of Carvedilol--Case Example of a Weakly Basic BCS Class II Drug. AAPS PharmSciTech 2016. [PMID: 26202065 DOI: 10.1208/s12249-015-0365-2] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The objective of this study was to investigate the pH-dependent solubility and dissolution of weakly basic Biopharmaceutical Classification Systems (BCS) class II drugs, characterized by low solubility and high permeability, using carvedilol, a weak base with a pK a value of 7.8, as a model drug. A series of solubility and in vitro dissolution studies was carried out using media that simulate the gastric and intestinal fluids and cover the physiological pH range of the GI from 1.2 to 7.8. The effect of ionic strength, buffer capacity, and buffer species of the dissolution media on the solubility and dissolution behavior of carvedilol was also investigated. The study revealed that carvedilol exhibited a typical weak base pH-dependent solubility profile with a high solubility at low pH (545.1-2591.4 μg/mL within the pH range 1.2-5.0) and low solubility at high pH (5.8-51.9 μg/mL within the pH range 6.5-7.8). The dissolution behavior of carvedilol was consistent with the solubility results, where carvedilol release was complete (95.8-98.2% released within 60 min) in media simulating the gastric fluid (pH 1.2-5.0) and relatively low (15.9-86.2% released within 240 min) in media simulating the intestinal fluid (pH 6.5-7.8). It was found that the buffer species of the dissolution media may influence the solubility and consequently the percentage of carvedilol released by forming carvedilol salts of varying solubilities. Carvedilol solubility and dissolution decreased with increasing ionic strength, while lowering the buffer capacity resulted in a decrease in carvedilol solubility and dissolution rate.
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24
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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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25
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Dolinina ES, Vorobyeva EV, Parfenyuk EV. Development of novel delivery system for warfarin based on mesoporous silica: adsorption characteristics of silica materials for the anticoagulant. Pharm Dev Technol 2015; 21:546-53. [DOI: 10.3109/10837450.2015.1098662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ekaterina S. Dolinina
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, Ivanovo, Russia
| | - Evgeniya V. Vorobyeva
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, Ivanovo, Russia
| | - Elena V. Parfenyuk
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, Ivanovo, Russia
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26
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Dening TJ, Rao S, Thomas N, Prestidge CA. Novel Nanostructured Solid Materials for Modulating Oral Drug Delivery from Solid-State Lipid-Based Drug Delivery Systems. AAPS JOURNAL 2015; 18:23-40. [PMID: 26354801 DOI: 10.1208/s12248-015-9824-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/23/2015] [Indexed: 12/20/2022]
Abstract
Lipid-based drug delivery systems (LBDDS) have gained significant attention in recent times, owing to their ability to overcome the challenges limiting the oral delivery of poorly water-soluble drugs. Despite the successful commercialization of several LBDDS products over the years, a large discrepancy exists between the number of poorly water-soluble drugs displaying suboptimal in vivo performances and the application of LBDDS to mitigate their various delivery challenges. Conventional LBDDS, including lipid solutions and suspensions, emulsions, and self-emulsifying formulations, suffer from various drawbacks limiting their widespread use and commercialization. Accordingly, solid-state LBDDS, fabricated by adsorbing LBDDS onto a chemically inert solid carrier material, have attracted substantial interest as a viable means of stabilizing LBDDS whilst eliminating some of the various limitations. This review describes the impact of solid carrier choice on LBDDS performance and highlights the importance of appropriate solid carrier material selection when designing hybrid solid-state LBDDS. Specifically, emphasis is placed on discussing the ability of the specific solid carrier to modulate drug release, control lipase action and lipid digestion, and enhance biopharmaceutical performance above the original liquid-state LBDDS. To encourage the interested reader to consider their solid carrier choice on a higher level, various novel materials with the potential for future use as solid carriers for LBDDS are described. This review is highly significant in guiding future research directions in the solid-state LBDDS field and fostering the translation of these delivery systems to the pharmaceutical marketplace.
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Affiliation(s)
- Tahnee J Dening
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - Shasha Rao
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - Nicky Thomas
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5001, Australia.
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27
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Zhao Z, Gao Y, Wu C, Hao Y, Zhao Y, Xu J. Development of novel core-shell dual-mesoporous silica nanoparticles for the production of high bioavailable controlled-release fenofibrate tablets. Drug Dev Ind Pharm 2015; 42:199-208. [DOI: 10.3109/03639045.2015.1039018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zongzhe Zhao
- Department of Pharmaceutics, Liaoning Medical University, Jinzhou, Liaoning Province, China and
| | - Yu Gao
- Department of Oncology, First Affiliated Hospital, Liaoning Medical University, Jinzhou, Liaoning Province, China
| | - Chao Wu
- Department of Pharmaceutics, Liaoning Medical University, Jinzhou, Liaoning Province, China and
| | - Yanna Hao
- Department of Pharmaceutics, Liaoning Medical University, Jinzhou, Liaoning Province, China and
| | - Ying Zhao
- Department of Pharmaceutics, Liaoning Medical University, Jinzhou, Liaoning Province, China and
| | - Jie Xu
- Department of Pharmaceutics, Liaoning Medical University, Jinzhou, Liaoning Province, China and
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28
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Systematic in vitro and in vivo study on porous silicon to improve the oral bioavailability of celecoxib. Biomaterials 2015; 52:44-55. [PMID: 25818412 DOI: 10.1016/j.biomaterials.2015.02.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/29/2015] [Accepted: 02/01/2015] [Indexed: 01/08/2023]
Abstract
Mesoporous materials are promising candidates for improving dissolution rate of poorly water-soluble drugs in vitro and their bioavailability in vivo. In the present study, sixteen batches of celecoxib-loaded PSi particles with pore sizes ranging from 17 to 58 nm and celecoxib content from 5 to 36 w-% were prepared and a detailed physicochemical characterization of the drug was performed by several methods. Interaction between co-culture of Caco-2/HT29-MTX cells and unloaded PSi particles was tested in toxicity assays, and increased toxicity for particles with large pore size was observed. Dissolution rate of celecoxib was improved in vitro by lowering the drug loading degree which hindered the recrystallization of celecoxib on the external surface of the particles. The fastest permeation of loaded celecoxib through the co-culture monolayer as well as the highest bioavailability in rats was observed with the particles with small pore size and low loading degree. New insights were obtained on how various parameters of the mesoporous delivery system affect the state of the drug inside the pores and its release in vitro and in vivo.
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29
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Wu C, Sun X, Zhao Z, Zhao Y, Hao Y, Liu Y, Gao Y. Synthesis of novel core-shell structured dual-mesoporous silica nanospheres and their application for enhancing the dissolution rate of poorly water-soluble drugs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:262-7. [DOI: 10.1016/j.msec.2014.08.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/30/2014] [Accepted: 08/13/2014] [Indexed: 01/11/2023]
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30
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Advanced progress of microencapsulation technologies: In vivo and in vitro models for studying oral and transdermal drug deliveries. J Control Release 2014; 178:25-45. [DOI: 10.1016/j.jconrel.2013.12.028] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 12/10/2013] [Accepted: 12/17/2013] [Indexed: 11/20/2022]
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