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Yang L, Wang Y, Liang Y, Deng H, Wang J, Dai Y, Guo F, Zhou H, Li S, Ding W. pH-responsive bentonite nanoclay carriers control the release of benzothiazolinone to restrain bacterial wilt disease. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 198:105754. [PMID: 38225096 DOI: 10.1016/j.pestbp.2023.105754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024]
Abstract
Ralstonia solanacearum (R. solanacearum) is one of the most devastating pathogens in terms of losses in agricultural production. Bentonite (Bent) is a promising synergistic agent used in development of effective and environmentally friendly pesticides against plant disease. However, the synergistic mechanism of Bent nanoclays with benzothiazolinone (BIT) against R. solanacearum is unknown. In this work, acid-functionalized porous Bent and cetyltrimethylammonium bromide (CTAB) were employed as the core nanoclays, and BIT was loaded into the clay to form BIT-loaded CT-Bent (BIT@CT-Bent) for the control of bacterial wilt disease. BIT@CT-Bent exhibited pH-responsive release behavior that fit the Fickian diffusion model, rapidly releasing BIT in an acidic environment (pH = 5.5). The antibacterial effect of BIT@CT-Bent was approximately 4 times greater than that of the commercial product BIT, and its biotoxicity was much lower than that of BIT under the same conditions. Interestingly, R. solanacearum attracted BIT@CT-Bent into the nanocomposites and induced cytoplasmic leakage and changes in membrane permeability, indicating an efficient and synergistic bactericidal effect that rapidly reduced bacterial density. In addition, BIT@CT-Bent significantly inhibited R. solanacearum biofilm formation and swimming activity, by suppressing the expression of phcA, solR and vsrC. Indeed, exogenous application of BIT@CT-Bent significantly suppressed the virulence of R. solanacearum on tobacco plants, with control effect of 75.48%, 72.08% and 66.08% at 9, 11 and 13 days after inoculation, respectively. This study highlights the potential of using BIT@CT-Bent as an effective, eco-friendly bactericide to control bacterial wilt diseases and for the development of sustainable crop protection strategies.
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Affiliation(s)
- Liang Yang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Yao Wang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Yijia Liang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Haibin Deng
- Guangdong Tobacco Research Institute, Guangdong 512026, China
| | - Jun Wang
- Guangdong Tobacco Research Institute, Guangdong 512026, China
| | - Yuhao Dai
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Fuyou Guo
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Hong Zhou
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Shili Li
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Wei Ding
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
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Jain S, Datta M. Pluronic F-68 Montmorillonite As A Drug Delivery Vehicle For Extended Release Of Venlafaxine Hydrochloride. Drug Res (Stuttg) 2023. [PMID: 37116538 DOI: 10.1055/a-2024-9964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Short half-life and low bioavailability of Venlafaxine hydrochloride (VF), an antidepressant drug, necessitates the frequent administration of VF tablets in a day in order to maintain adequate drug concentration in blood plasma. This generates the need for the development of formulations which could prolong the release of VF and reduce the multiple dosages. The present work explores the combination of Montmorillonite (Mt) with Pluronic F-68 (PF-68) (OrganoMT) for oral delivery of VF. The effect of various parameters including pH of aqueous drug solution, contact time and initial drug concentration on drug loading capacity of OrganoMT has been studied. The synthesized OrganoMT-VF complexes were characterized by various suitable techniques. XRD studies indicated that the VF molecules were intercalated within the OrganoMT layers. In vitro release behavior of VF from OrganoMT-VF complexes shows an extended-release pattern for a period of 30 h and reaches upto 70% and 60% compared to pure VF having complete release time of 5.5 h and 3.5 h in simulated gastric and intestinal fluid respectively. Various kinetic models were employed to elucidate the drug release mechanism where the best fitting was obtained with Korsmeyer Peppas model. The results suggest the possibility of designing an oral extended controlled release formulation for VF to minimize its administration frequency thereby increasing the effectiveness of drug. This improves patient compliance by reducing the dose from 4 times in 24 h to once in 24 h.
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Affiliation(s)
- Shilpa Jain
- Department of Chemistry, Shivaji College (University of Delhi), Raja Garden, New Delhi, India
| | - Monika Datta
- Department of Chemistry, University of Delhi, Delhi, India
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Formulation and Evaluation of Self-Nanoemulsifying Drug Delivery System Derived Tablet Containing Sertraline. Pharmaceutics 2022; 14:pharmaceutics14020336. [PMID: 35214068 PMCID: PMC8880292 DOI: 10.3390/pharmaceutics14020336] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 02/04/2023] Open
Abstract
Being a biopharmaceutics classification system class II drug, the absorption of sertraline from the gut is mainly limited by its poor aqueous solubility. The objective of this investigation was to improve the solubility of sertraline utilizing self-nanoemulsifying drug delivery systems (SNEDDS) and developing it into a tablet dosage form. Ternary phase diagrams were created to identify nanoemulsion regions by fixing oil (glycerol triacetate) and water while varying the surfactant (Tween 80) and co-surfactant (PEG 200) ratio (Smix). A three-factor, two-level (23) full factorial design (batches F1–F8) was utilized to check the effect of independent variables on dependent variables. Selected SNEDDS (batch F4) was solidified into powder by solid carrier adsorption method and compressed into tablets. The SNEDDS-loaded tablets were characterized for various pharmaceutical properties, drug release and evaluated in vivo in Wistar rats. A larger isotropic region was noticed with a Smix ratio of 2:1 and the nanoemulsion exhibited good stability. Screening studies’ data established that all three independent factors influence the dependent variables. The prepared tablets displayed optimal pharmaceutical properties within acceptable limits. In vitro sertraline release demonstrated from solid SNEDDS was statistically significant (p < 0.0001) as compared to pure sertraline. Differential Scanning Calorimetry and X-Ray Diffraction data established the amorphous state of the drug in SNEDDS formulation, while FTIR spectra indicate the compatibility of excipients and drug. Pharmacokinetic evaluation of the SNEDDS tablet demonstrated significant increment (p < 0.0001) in AUC0-α (~5-folds), Cmax (~4-folds), and relative bioavailability (386%) as compared to sertraline suspension. The current study concludes that the solid SNEDDS formulation could be a practicable and effective strategy for oral therapy of sertraline.
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CO2 utilization as a supercritical solvent and supercritical antisolvent in production of sertraline hydrochloride nanoparticles. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2021.101799] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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5
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Liu J, Yang Z, Che Y, Zhang Y, Zhang Z, Zhao C. Computational investigation of metal organic frameworks as potential drug carriers for antihypertensive amlodipine. AIChE J 2021. [DOI: 10.1002/aic.17474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jiaqi Liu
- School of Chemistry, Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan China
| | - Zhen Yang
- School of Chemistry, Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan China
| | - Yuanyuan Che
- School of Chemistry, Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan China
| | - Yaojie Zhang
- School of Chemistry, Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan China
| | - Zhihao Zhang
- School of Chemistry, Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan China
| | - Chun‐Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia Queensland Australia
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Pavón E, Alba MD. Swelling layered minerals applications: A solid state NMR overview. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2021; 124-125:99-128. [PMID: 34479713 DOI: 10.1016/j.pnmrs.2021.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 06/13/2023]
Abstract
Swelling layered clay minerals form an important sub-group of the phyllosilicate family. They are characterized by their ability to expand or contract in the presence or absence of water. This property makes them useful for a variety of applications, ranging from environmental technologies to heterogeneous catalysis, and including pharmaceutical and industrial applications. Solid State Nuclear Magnetic Resonance (SS-NMR) has been extensively applied in the characterization of these materials, providing useful information on their dynamics and structure that is inaccessible using other characterization methods such as X-ray diffraction. In this review, we present the key contributions of SS-NMR to the understanding of the mechanisms that govern some of the main applications associated to swelling clay minerals. The article is divided in two parts. The first part presents SS-NMR conventional applications to layered clay minerals, while the second part comprises an in-depth review of the information that SS-NMR can provide about the different properties of swelling layered clay minerals.
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Affiliation(s)
- Esperanza Pavón
- Instituto Ciencia de los Materiales de Sevilla (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain; Departamento de Física de la Materia Condensada, Universidad de Sevilla, Avda. Reina Mercedes, s/n, 41012 Sevilla, Spain.
| | - María D Alba
- Instituto Ciencia de los Materiales de Sevilla (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
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Use of thermodynamics in understanding drug release from xanthan gum matrices: The influence of clay-drug complexes. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2020. [DOI: 10.1016/j.carpta.2020.100012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Eusepi P, Marinelli L, Borrego-Sánchez A, García-Villén F, Rayhane BK, Cacciatore I, Viseras C, Di Stefano A. Nano-delivery systems based on carvacrol prodrugs and fibrous clays. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Totea A, Dorin I, Gavrilov G, Laity P, Conway B, Waters L, Asare-Addo K. Real time calorimetric characterisation of clay – drug complex dispersions and particles. Int J Pharm X 2019; 1:100003. [PMID: 31545854 PMCID: PMC6733304 DOI: 10.1016/j.ijpx.2018.100003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 11/17/2022] Open
Abstract
Single loaded and double loaded MAS-PPN complexes successfully made. ATR-FTIR confirmed adsorption of PPN onto MAS via hydrogen bonding. SEM/EDX showed changes in MAS microstructure upon complexation. Drug recovery varied in three media types. SIM and MIM experiments showed overall change in enthalpy to be exothermic SIM and MIM showed small entropic contribution to the total change in Gibbs free energy.
Isothermal titration calorimetry (ITC) along with attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX) and high-performance liquid chromatography (HPLC) were employed to investigate the process of adsorption of propranolol hydrochloride (PPN) onto magnesium aluminium silicate (MAS) and to characterise the MAS-PPN particles formed upon complexation. The composition of MAS was confirmed by infrared (IR) spectroscopy and a calcimeter. The calorimetric results confirmed the binding between PPN and MAS at various pHs and temperatures. The overall change in enthalpy was found to be exothermic with a comparatively small entropic contribution to the total change in Gibbs free energy. These findings suggest that the binding process was enthalpically driven and entropically unfavourable (lower affinity) suggesting hydrogen bonding and electrostatic interactions dominating the interaction. The variation of pH and temperature did not have a great impact on the thermodynamics of the binding process, as observed from the similarity in enthalpy (ΔH), entropy (ΔS) or Gibbs free energy (ΔG). A slight reduction in the binding affinity (Ka) with varing pH and temperature was however observed. SEM/EDX studies showed the occurrence of changes in the microstructural properties of MAS following complexation which may explain the potential of MAS-PPN complexes for controlled drug release promoting pharmaceutical innovation.
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Affiliation(s)
- A.M. Totea
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - I. Dorin
- Malvern Panalytical Ltd., Malvern, UK
| | - G. Gavrilov
- Wienerberger, Baneasa Business & Technology Park, Bucharest, Romania
| | - P.R. Laity
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, UK
| | - B.R. Conway
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - L. Waters
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - K. Asare-Addo
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
- Corresponding author.
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10
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Thiabendazole/bentonites hybrids as controlled release systems. Colloids Surf B Biointerfaces 2019; 176:249-255. [DOI: 10.1016/j.colsurfb.2018.12.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/10/2018] [Accepted: 12/12/2018] [Indexed: 11/17/2022]
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11
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Mura P, Valleri M, Fabianelli E, Maestrelli F, Cirri M. Characterization and evaluation of different mesoporous silica kinds as carriers for the development of effective oral dosage forms of glibenclamide. Int J Pharm 2019; 563:43-52. [PMID: 30926527 DOI: 10.1016/j.ijpharm.2019.03.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/21/2019] [Accepted: 03/25/2019] [Indexed: 12/16/2022]
Abstract
This work evaluated the suitability of various mesoporous silicas as carriers for developing an oral formulation endowed with improved dissolution properties of glibenclamide, hypoglycemic agent poorly water-soluble. The different silicas were examined for solid-state, morphology, and technological and physical-chemical properties (granulometry, specific surface area, wettability, water content, water activity, apparent density, flowability, compactability). A pairwise comparison allowed a ranking, by importance order, of the parameters examined and, for each parameter, a score was assigned to each silica type. Data statistical treatment (JMP software) indicated Neusilin®US2 and Syloid®XDP3150 as the best materials. Different loading methods were tested: physical mixing; addition of drug dissolved in a volatile solvent, subsequently evaporated; addition of drug dissolved in a solvent. Methods involving drug dissolution enabled drug amorphization and intimate dispersion within the silica porous structure. Dissolution tests indicated Syloid®XDP3150 as the most effective silica in enhancing drug dissolution properties, providing a release rate clearly faster than from commercial tablets. Drug amorphization, improved wettability, increased surface area of the drug, finely dispersed into the highly porous silica, were the main factors responsible for this finding. Moreover, the obtained results suggested that drug dissolution rate can be properly tuned, based on the suited choice of the silica type.
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Affiliation(s)
- Paola Mura
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy.
| | - Maurizio Valleri
- A. Menarini Manufacturing Logistics and Services s.r.l. (AMMLS), Florence, Italy
| | - Elisa Fabianelli
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy
| | - Francesca Maestrelli
- A. Menarini Manufacturing Logistics and Services s.r.l. (AMMLS), Florence, Italy
| | - Marzia Cirri
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy
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12
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Carrier particle mediated stabilization and isolation of valsartan nanoparticles. Colloids Surf B Biointerfaces 2019; 175:554-563. [DOI: 10.1016/j.colsurfb.2018.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/08/2018] [Accepted: 12/10/2018] [Indexed: 12/31/2022]
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13
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Emen FM, DEMİRDÖĞEN RE, AVŞAR G, KILIÇ D. 2-Chlorobenzoylthiourea-modified MCM-41 for Drug Delivery. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2019. [DOI: 10.18596/jotcsa.467177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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14
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Synthesis, Characterization and in vitro Drug Release Studies of Sonolytically Intercalated Poly(o-anisidine)/Montmorillonite Nanocomposites. Macromol Res 2018. [DOI: 10.1007/s13233-019-7037-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Dardir FM, Mohamed AS, Abukhadra MR, Ahmed EA, Soliman MF. Cosmetic and pharmaceutical qualifications of Egyptian bentonite and its suitability as drug carrier for Praziquantel drug. Eur J Pharm Sci 2018; 115:320-329. [DOI: 10.1016/j.ejps.2018.01.041] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/19/2018] [Accepted: 01/25/2018] [Indexed: 10/17/2022]
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16
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Sun J, Zhou Z. A novel ocular delivery of brinzolamide based on gellan gum: in vitro and in vivo evaluation. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:383-389. [PMID: 29503531 PMCID: PMC5825998 DOI: 10.2147/dddt.s153405] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background The aim of the study was to develop a sustained ocular delivery of brinzolamide (BLZ) based on gellan gum. Methods The formulations were characterized for clarity, gelling capacity, rheological studies, pH, drug content, and in vitro drug-release behavior. In vivo rabbit eye irritation test was conducted to evaluate irritation of the BLZ gel drug-delivery system. The prepared BLZ formulations were then investigated in vivo and compared with commercially available BLZ eyedrops with regard to pharmacodynamics. Results The results showed that the optimum concentration of gellan gum was 0.25% w/v; the prepared liquid was converted into a flowing gel after the addition of simulated tear fluid. In vitro release profiles showed that the release of BLZ from the in situ gel exhibited sustained characteristics. Draize test results showed that BLZ in situ gels did not stimulate signs of eye tissue activity and were less irritating than BLZ solutions and commercial Azopt. Conclusion The results of pharmacodynamics implied that the novel preparation of BLZ in situ gel effectively prolonged the intraocular pressure-lowering effect after administration.
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Affiliation(s)
- Jingfen Sun
- Department of Ophthalmology, Ruijin Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Zhengshen Zhou
- Department of Ophthalmology, Ruijin Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Verma A, Riaz U. Mechanochemically synthesized poly(o-toluidine)-intercalated montmorillonite nanocomposites as antituberculosis drug carriers. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320658] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Anurakshee Verma
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, India
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Computational study of ibuprofen removal from water by adsorption in realistic activated carbons. J Colloid Interface Sci 2017; 498:323-334. [DOI: 10.1016/j.jcis.2017.03.068] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/11/2017] [Accepted: 03/15/2017] [Indexed: 11/22/2022]
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Huang Y, Tao Q, Hou D, Hu S, Tian S, Chen Y, Gui R, Yang L, Wang Y. A novel ion-exchange carrier based upon liposome-encapsulated montmorillonite for ophthalmic delivery of betaxolol hydrochloride. Int J Nanomedicine 2017; 12:1731-1745. [PMID: 28280338 PMCID: PMC5340245 DOI: 10.2147/ijn.s122747] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
As a novel ion-exchange carrier with high surface area and excellent exchangeability, montmorillonite (Mt) was intercalated with betaxolol hydrochloride (BH) to form a nanocomposite and then encapsulated by liposomes (Mt-BH-LPs) for an ophthalmic drug-delivery system. The Mt-BH and Mt-BH-LPs were prepared by an acidification process and ethanol injection combined with ammonium sulfate gradient methods. The successful formation of Mt-BH and Mt-BH-LPs was verified by thermogravimetric analysis, X-ray diffraction, Fourier-transform infrared spectra, and transmission electron microscopy. Mt-BH-LPs possessed the favorable physical characteristics of encapsulation efficiency, drug loading, mean particle size, and ζ-potential. In vitro release studies indicated Mt-BH-LPs effectively maintained a relatively sustained slow release. Immortalized human corneal epithelial cell cytotoxicity, in vivo rabbit eye-irritation tests, and chorioallantoic membrane–trypan blue staining all revealed that Mt-BH-LPs had no obvious irritation on ocular tissues. A new in vitro tear-turnover model, including inserts containing human corneal epithelial cells, was designed to evaluate the precorneal retention time of Mt-BH-LPs. The results showed that Mt-BH-LPs maintained a certain BH concentration in tear fluid for a longer period than the BH solution. In vivo precorneal retention studies also indicated Mt-BH-LPs prolonged drug retention on the ocular surface more than the BH solution. Furthermore, pharmacodynamic studies showed that Mt-BH-LPs had a prolonged effect on decreasing intraocular optical pressure in rabbits. Our results demonstrated that Mt-BH-LPs have potential as an ophthalmic delivery system.
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Affiliation(s)
- Yi Huang
- College of Pharmacy, Guangdong Pharmaceutical University
| | - Qi Tao
- Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Mineral Physics and Materials
| | - Dongzhi Hou
- College of Pharmacy, Guangdong Pharmaceutical University
| | - Sheng Hu
- College of Pharmacy, Guangdong Pharmaceutical University
| | - Shuangyan Tian
- College of Pharmacy, Guangdong Pharmaceutical University
| | - Yanzhong Chen
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Guangdong Pharmaceutical University, Guangzhou
| | - Ruyi Gui
- College of Pharmacy, Guangdong Pharmaceutical University
| | - Lingling Yang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences
| | - Yao Wang
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
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Othman R, Vladisavljević GT, Thomas NL, Nagy ZK. Fabrication of composite poly(d,l-lactide)/montmorillonite nanoparticles for controlled delivery of acetaminophen by solvent-displacement method using glass capillary microfluidics. Colloids Surf B Biointerfaces 2016; 141:187-195. [DOI: 10.1016/j.colsurfb.2016.01.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/19/2016] [Accepted: 01/23/2016] [Indexed: 11/29/2022]
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21
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Knapik J, Wojnarowska Z, Grzybowska K, Jurkiewicz K, Stankiewicz A, Paluch M. Stabilization of the Amorphous Ezetimibe Drug by Confining Its Dimension. Mol Pharm 2016; 13:1308-16. [PMID: 26981876 DOI: 10.1021/acs.molpharmaceut.5b00903] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The purpose of this paper is to investigate the influence of nanoconfinement on the molecular mobility, as well as on the physical stability, of amorphous ezetimibe drug. Two guest/host systems, ezetimibe-Aeroperl 300 and ezetimibe-Neusilin US2, were prepared and studied using various experimental techniques, such as X-ray diffraction (XRD), differential scanning calorimetry (DSC), and broadband dielectric spectroscopy (BDS). Our investigation has shown that the molecular mobility of the examined anticholesterol agent incorporated into nanopore matrices strongly depends on the pore size of the host system. Moreover, it was found that the amorphous ezetimibe confined in 30 nm pores of Aeroperl 300 has a tendency to recrystallize, while the drug incorporated into the smaller--5 nm--pores of Neusilin US2 is not able to crystallize. It has been shown that this significant stabilization of ezetimibe drug can be achieved by an interplay of three factors: changes in molecular dynamics of the confined amorphous drug, the immobilization effect of pore walls on a part of ezetimibe molecules, and the use of host materials with pores that are smaller than the critical size of the drug crystal nuclei.
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Affiliation(s)
- J Knapik
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Grzybowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - A Stankiewicz
- F1 Pharma sp. z o.o. , ul. Bobrzyńskiego 14, 30-348 Kraków, Poland
| | - M Paluch
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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Reddy AB, Manjula B, Jayaramudu T, Sadiku ER, Anand Babu P, Periyar Selvam S. 5-Fluorouracil Loaded Chitosan-PVA/Na +MMT Nanocomposite Films for Drug Release and Antimicrobial Activity. NANO-MICRO LETTERS 2016; 8:260-269. [PMID: 30460286 PMCID: PMC6223683 DOI: 10.1007/s40820-016-0086-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/05/2016] [Indexed: 05/30/2023]
Abstract
In the present study, chitosan and polyvinyl alcohol (PVA) were blended with different concentrations of sodium montmorillonite (Na+MMT) clay solution by a solvent casting method. X-ray diffraction and transition electron microscope results show that the film properties are related to the co-existence of Na+MMT intercalation/exfoliation in the blend and the interaction between chitosan-PVA and Na+MMT. 5-Fluorouracil (5-FU) was loaded with chitosan-PVA/Na+MMT nanocomposite films for in vitro drug delivery study. The antimicrobial activity of the chitosan-PVA/Na+MMT films showed significant effect against Salmonella (Gram-negative) and Staphylococcus aureus (Gram-positive), whereas 5-FU encapsulated chitosan-PVA/Na+MMT bio-nanocomposite films did not show any inhibition against bacteria. Our results indicate that combination of a flexible and soft polymeric material with high drug loading ability of a hard inorganic porous material can produce improved control over degradation and drug release. It will be an economically viable method for preparation of advanced drug delivery vehicles and biodegradable implants or scaffolds.
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Affiliation(s)
- A. Babul Reddy
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, CSIR Campus, Building 14D, Lynwood Ridge, Private Bag X025, Pretoria, 0040 South Africa
| | - B. Manjula
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, CSIR Campus, Building 14D, Lynwood Ridge, Private Bag X025, Pretoria, 0040 South Africa
| | - T. Jayaramudu
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, CSIR Campus, Building 14D, Lynwood Ridge, Private Bag X025, Pretoria, 0040 South Africa
| | - E. R. Sadiku
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, CSIR Campus, Building 14D, Lynwood Ridge, Private Bag X025, Pretoria, 0040 South Africa
| | - P. Anand Babu
- Department of Food Process Engineering, School of Bioengineering, SRM University, Kattankulathur, Tamil Nadu 603203 India
| | - S. Periyar Selvam
- Department of Food Process Engineering, School of Bioengineering, SRM University, Kattankulathur, Tamil Nadu 603203 India
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Jafarbeglou M, Abdouss M, Shoushtari AM, Jafarbeglou M. Clay nanocomposites as engineered drug delivery systems. RSC Adv 2016. [DOI: 10.1039/c6ra03942a] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Amolegbe SA, Ohmagari H, Wakata K, Takehira H, Ohtani R, Nakamura M, Yu C, Hayami S. Synthesis of mesoporous materials as nano-carriers for an antimalarial drug. J Mater Chem B 2016; 4:1040-1043. [DOI: 10.1039/c5tb02200b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An antimalarial drug artesunate (ATS) was encapsulated in both functionalized MCM-41 and ordinary MCM-41 with an excellent loading capacity and sustained release behavior for possible biomedical applications.
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Affiliation(s)
- Saliu Alao Amolegbe
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Hitomi Ohmagari
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Kosuke Wakata
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Hiroshi Takehira
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Ryo Ohtani
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Masaaki Nakamura
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland Queensland
- Australia
| | - Shinya Hayami
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
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Bahrami Z, Badiei A, Ziarani GM. Carboxylic acid-functionalized SBA-15 nanorods for gemcitabine delivery. JOURNAL OF NANOPARTICLE RESEARCH 2015; 17:125. [DOI: 10.1007/s11051-015-2929-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
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Bahrami Z, Badiei A, Atyabi F, Darabi HR, Mehravi B. Piperazine and its carboxylic acid derivatives-functionalized mesoporous silica as nanocarriers for gemcitabine: adsorption and release study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 49:66-74. [PMID: 25686928 DOI: 10.1016/j.msec.2014.12.069] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/30/2014] [Accepted: 12/17/2014] [Indexed: 12/29/2022]
Abstract
Piperazine-functionalized SBA-15 nanorods were synthesized by post grafting method with methyldimethoxysilylpropylpiperazine (MDSP). The carboxylic acid derivatives of piperazine-functionalized SBA-15 nanorods were obtained using two different kinds of precursors (bromoacetic acid and succinic anhydride). The prepared materials were used as nanocarriers for the anticancer drug (gemcitabine). The obtained samples were characterized by SAXS, N2 adsorption-desorption, SEM, TEM, DLS, thermogravimetric analysis, FTIR, Raman and UV spectroscopies. The adsorption and release properties of all samples were investigated. In vitro study included cell toxicity. It was found that the surface functionalization increases the interaction between the carrier and gemcitabine and results in the loading enhancement of the drug. In addition, the adsorption of gemcitabine on the modified mesoporous matrix depends on the type of the introduced functional groups. The carboxylic acid-modified samples have higher loading content, due to the strong interaction with gemcitabine. The maximum content of deposited drug in the modified SBA-15 nanorods is close to 36wt.% that it is related to PC2-SBA-15 sample which obtained using succinic anhydride. The obtained results reveal that the surface functionalization leads toward a significant decrease of the drug release rate without any appreciable cytotoxicity. No significant differences are observed among the drug release rate from the modified samples.
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Affiliation(s)
- Zohreh Bahrami
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran; Nanobiomedicine Center of Excellence, Nanoscience and Nanotechnology Research Center, University of Tehran, Tehran, Iran.
| | - Fatemeh Atyabi
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran
| | - Hossein Reza Darabi
- Chemistry and Chemical Engineering Research Center of Iran, Nano and Organic Synthesis Lab, Tehran, Iran
| | - Bita Mehravi
- Celullar and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Bahrami Z, Badiei A, Atyabi F. Surface functionalization of SBA-15 nanorods for anticancer drug delivery. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2013.11.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Kaur M, Datta M. Diclofenac Sodium Adsorption onto Montmorillonite: Adsorption Equilibrium Studies and Drug Release Kinetics. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.5.365] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Manpreet Kaur
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Monika Datta
- Department of Chemistry, University of Delhi, Delhi 110007, India
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Bernini MC, Fairen-Jimenez D, Pasinetti M, Ramirez-Pastor AJ, Snurr RQ. Screening of bio-compatible metal–organic frameworks as potential drug carriers using Monte Carlo simulations. J Mater Chem B 2014; 2:766-774. [DOI: 10.1039/c3tb21328e] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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32
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Calabrese I, Cavallaro G, Scialabba C, Licciardi M, Merli M, Sciascia L, Turco Liveri ML. Montmorillonite nanodevices for the colon metronidazole delivery. Int J Pharm 2013; 457:224-36. [PMID: 24076230 DOI: 10.1016/j.ijpharm.2013.09.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 09/11/2013] [Accepted: 09/15/2013] [Indexed: 11/19/2022]
Abstract
The adsorption profiles of the antibiotic metronidazole (MNE) into the K10-montmorillonite (MMT-K10) clay and the subsequent release have been investigated as a function of pH and MNE/MMT-K10 ratio, in order to evaluate the potential of the MNE/MMT-K10 hybrids as controlled drug delivery system. The adsorption mechanism has been first elucidated by performing complementary equilibrium and kinetic studies and through the X-ray diffractometry (XRD) characterization of the obtained composite materials. The gathered results allowed us to propose a mechanism consisting of a multi-step pathway involving the neutral and the cationic form of the drug, which interact with different sites of the clay surfaces, i.e. the interlayer region and the faces of the lamella. In a second step the drug release kinetics has been studied under physiological pH mimicking conditions simulating the oral drug administration and delivery. For the sake of comparison the commercial formulation has also been employed for the release studies. The investigation of the release profiles and the comparison with the commercial formulation of the drug reveal that the new-tailor made formulation could be fruitful exploited for successfully prolonged the action of drug in the desired site.
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Affiliation(s)
- Ilaria Calabrese
- Dipartimento di Fisica e Chimica, University of Palermo, Viale delle Scienze Ed. 17, 90128 Palermo, Italy
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Pongjanyakul T, Rojtanatanya S. Use of propranolol-magnesium aluminium silicate intercalated complexes as drug reservoirs in polymeric matrix tablets. Indian J Pharm Sci 2013; 74:292-301. [PMID: 23626384 PMCID: PMC3630724 DOI: 10.4103/0250-474x.107048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 08/06/2012] [Accepted: 08/09/2012] [Indexed: 11/04/2022] Open
Abstract
The objective of the present study was to investigate the use of propranolol-magnesium aluminium silicate intercalated complexes as drug reservoirs in hydroxypropylmethylcellulose tablets. The matrix tablets containing the complexes were prepared and characterised with respect to propranolol release and were subsequently compared with those loading propranolol or a propranolol-magnesium aluminium silicate physical mixture. Additionally, the effects of varying viscosity grades of hydroxypropyl methylcellulose, compression pressures and calcium acetate incorporation on the drug release characteristics of the complex-loaded tablets were also examined. The results showed that the complex-loaded tablets have higher tablet hardness than those containing propranolol or a physical mixture. The drug release from the complex-loaded tablets followed a zero-order release kinetic, whereas an anomalous transport was found in the propranolol or physical mixture tablets. The drug release rate of the complex tablet significantly decreased with increasing hydroxypropylmethylcellulose viscosity grade. Increase in the compression pressure caused a decrease in the drug release rate of the tablets. Furthermore, the incorporation of calcium ions could accelerate propranolol release, particularly in acidic medium, because calcium ions could be exchanged with propranolol molecules intercalated in the silicate layers of magnesium aluminium silicate. These findings suggest that propranolol-magnesium aluminium silicate intercalated complexes show strong potential for use as drug reservoirs in matrix tablets intended for modifying drug release.
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Affiliation(s)
- T Pongjanyakul
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen-40002, Thailand
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Rodrigues LADS, Figueiras A, Veiga F, de Freitas RM, Nunes LCC, da Silva Filho EC, da Silva Leite CM. The systems containing clays and clay minerals from modified drug release: A review. Colloids Surf B Biointerfaces 2013; 103:642-51. [DOI: 10.1016/j.colsurfb.2012.10.068] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/29/2012] [Accepted: 10/31/2012] [Indexed: 11/29/2022]
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36
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Marzouqa DM, Zughul MB, Taha MO, Hodali HA. Effect of particle morphology and pore size on the release kinetics of ephedrine from mesoporous MCM-41 materials. JOURNAL OF POROUS MATERIALS 2012; 19:825-833. [DOI: 10.1007/s10934-011-9537-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
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37
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Passos JJ, De Sousa FB, Mundim IM, Bonfim RR, Melo R, Viana AF, Stolz ED, Borsoi M, Rates SM, Sinisterra RD. In vivo evaluation of the highly soluble oral β-cyclodextrin–Sertraline supramolecular complexes. Int J Pharm 2012; 436:478-85. [DOI: 10.1016/j.ijpharm.2012.06.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/24/2012] [Accepted: 06/30/2012] [Indexed: 11/24/2022]
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Meng N, Zhou NL, Shen J. Terbinafine hydrochloride intercalated in montmorillonite: synthesis and characterization. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0588-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ganesh M, Hemalatha P, Mei PM, Rajasekar K, Jang HT. A new fluoride mediated synthesis of mesoporous silica and their usefulness in controlled delivery of duloxetine hydrochloride a serotonin re-uptake inhibitor. J IND ENG CHEM 2012. [DOI: 10.1016/j.jiec.2011.11.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Qian KK, Bogner RH. Application of Mesoporous Silicon Dioxide and Silicate in Oral Amorphous Drug Delivery Systems. J Pharm Sci 2012; 101:444-63. [DOI: 10.1002/jps.22779] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 09/06/2011] [Accepted: 09/15/2011] [Indexed: 11/08/2022]
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41
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Choi BS, Kim DH, Kim TW, Jin HH, Park HC, Yoon SY. Intercalation behavior study of ibuprofen/clay organic-inorganic nanocomposites as drug release system. JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY 2011. [DOI: 10.6111/jkcgct.2011.21.6.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Horcajada P, Gref R, Baati T, Allan PK, Maurin G, Couvreur P, Férey G, Morris RE, Serre C. Metal–Organic Frameworks in Biomedicine. Chem Rev 2011; 112:1232-68. [PMID: 22168547 DOI: 10.1021/cr200256v] [Citation(s) in RCA: 2660] [Impact Index Per Article: 204.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Patricia Horcajada
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Ruxandra Gref
- Faculté de Pharmacie, UMR CNRS 8612, Université Paris-Sud, 92296 Châtenay-Malabry Cedex, France
| | - Tarek Baati
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Phoebe K. Allan
- EaStChem School of Chemistry, University of St. Andrews Purdie Building, St Andrews, KY16 9ST U.K
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Université Montpellier 2, 34095 Montpellier cedex 05, France
| | - Patrick Couvreur
- Faculté de Pharmacie, UMR CNRS 8612, Université Paris-Sud, 92296 Châtenay-Malabry Cedex, France
| | - Gérard Férey
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Russell E. Morris
- EaStChem School of Chemistry, University of St. Andrews Purdie Building, St Andrews, KY16 9ST U.K
| | - Christian Serre
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
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Joshi GV, Kevadiya BD, Mody HM, Bajaj HC. Confinement and controlled release of quinine on chitosan-montmorillonite bionanocomposites. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.25046] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Physicochemical stability of high indomethacin payload ordered mesoporous silica MCM-41 and SBA-15 microparticles. Int J Pharm 2011; 416:242-51. [PMID: 21763766 DOI: 10.1016/j.ijpharm.2011.06.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 06/28/2011] [Accepted: 06/30/2011] [Indexed: 11/21/2022]
Abstract
Stability of high indomethacin (IMC) content formulations based on ordered mesoporous silica MCM-41 and SBA-15 materials was studied before and after a 3 month storage in stressed conditions (30°C/56% RH). Overall, the physical stability of the samples was found satisfactory after the storage. However, some issues with the chemical stability were noted, especially with the MCM-41 based samples. The stability issues were evident from the decreased HPLC loading degrees of the drug after stressing as well as from the observed extra peaks in the HPLC chromatograms of the drug in the stressed samples. Drug release from the mesoporous formulations before stressing was rapid at pH 1.2 in comparison to bulk crystalline IMC. The release profiles also remained similar after stressing. Even faster and close to complete IMC release was achieved when the pH was raised from 1.2 to 6.8. To our knowledge, this is the first report of chemical stability issues of drugs in mesoporous silica drug formulations. The present results encourage further study of the factors affecting the chemical stability of drugs in mesoporous silica MCM-41 and SBA-15 formulations in order to realize their potential in oral drug delivery.
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Shen SC, Ng WK, Chia L, Hu J, Tan RB. Physical state and dissolution of ibuprofen formulated by co-spray drying with mesoporous silica: Effect of pore and particle size. Int J Pharm 2011; 410:188-95. [DOI: 10.1016/j.ijpharm.2011.03.018] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 03/09/2011] [Accepted: 03/10/2011] [Indexed: 10/18/2022]
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47
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Hua S, Yang H, Wang A. A pH-sensitive nanocomposite microsphere based on chitosan and montmorillonite with in vitro reduction of the burst release effect. Drug Dev Ind Pharm 2011; 36:1106-14. [PMID: 20334540 DOI: 10.3109/03639041003677798] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of this study was to prepare pH-sensitive ofloxacin (OFL)/montmorillonite (MMT)/chitosan (CTS) nanocomposite microspheres that improve the burst release effect of the drug by the solution intercalation technique and emulsification cross-linking techniques. METHODS First, OFL/MMT hybrids were prepared through the solution intercalation technique. Then, OFL/MMT-intercalated OFL/MMT/CTS nanocomposite microspheres were obtained through emulsification cross-linking technology. The intercalated nanocomposite was confirmed by Fourier-transform infrared spectroscopy and X-ray diffraction. Finally, in vitro release of OFL from the microspheres was performed in simulated gastric fluids and simulated intestinal fluids. The effect of MMT content on drug encapsulation efficiency and the drug release of the nanocomposite microspheres were investigated. RESULTS The results showed that the release rate of OFL from the nanocomposite microspheres at pH 7.4 was higher than that at pH 1.2. Compared with pure CTS microspheres, the incorporation of certain amount of MMT in the nanocomposite microspheres can enhance the drug encapsulation efficiency and reduce the burst release. CONCLUSION A sustained release particulate system can be obtained by incorporating MMT into the nanocomposite microspheres and can improve the burst release effect of the drug.
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Affiliation(s)
- Shuibo Hua
- Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, PR China
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Santos H, Salonen J, Bimbo L, Lehto VP, Peltonen L, Hirvonen J. Mesoporous materials as controlled drug delivery formulations. J Drug Deliv Sci Technol 2011. [DOI: 10.1016/s1773-2247(11)50016-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Development of biodegradable porous starch foam for improving oral delivery of poorly water soluble drugs. Int J Pharm 2011; 403:162-9. [DOI: 10.1016/j.ijpharm.2010.09.040] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 07/31/2010] [Accepted: 09/29/2010] [Indexed: 11/20/2022]
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50
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Joshi GV, Kevadiya BD, Bajaj HC. Controlled release formulation of ranitidine-containing montmorillonite and Eudragit® E-100. Drug Dev Ind Pharm 2010; 36:1046-53. [DOI: 10.3109/03639041003642073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ghanshyam V. Joshi
- Discipline of Inorganic Materials and Catalysis, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - Bhavesh D. Kevadiya
- Discipline of Inorganic Materials and Catalysis, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - Hari C. Bajaj
- Discipline of Inorganic Materials and Catalysis, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, India
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