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Lamparelli EP, Marino M, Szychlinska MA, Della Rocca N, Ciardulli MC, Scala P, D’Auria R, Testa A, Viggiano A, Cappello F, Meccariello R, Della Porta G, Santoro A. The Other Side of Plastics: Bioplastic-Based Nanoparticles for Drug Delivery Systems in the Brain. Pharmaceutics 2023; 15:2549. [PMID: 38004530 PMCID: PMC10674524 DOI: 10.3390/pharmaceutics15112549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
Plastics have changed human lives, finding a broad range of applications from packaging to medical devices. However, plastics can degrade into microscopic forms known as micro- and nanoplastics, which have raised concerns about their accumulation in the environment but mainly about the potential risk to human health. Recently, biodegradable plastic materials have been introduced on the market. These polymers are biodegradable but also bioresorbable and, indeed, are fundamental tools for drug formulations, thanks to their transient ability to pass through biological barriers and concentrate in specific tissues. However, this "other side" of bioplastics raises concerns about their toxic potential, in the form of micro- and nanoparticles, due to easier and faster tissue accumulation, with unknown long-term biological effects. This review aims to provide an update on bioplastic-based particles by analyzing the advantages and drawbacks of their potential use as components of innovative formulations for brain diseases. However, a critical analysis of the literature indicates the need for further studies to assess the safety of bioplastic micro- and nanoparticles despite they appear as promising tools for several nanomedicine applications.
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Affiliation(s)
- Erwin Pavel Lamparelli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Marianna Marino
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Marta Anna Szychlinska
- Faculty of Medicine and Surgery, Kore University of Enna, Cittadella Universitaria, 94100 Enna, Italy;
| | - Natalia Della Rocca
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Maria Camilla Ciardulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Pasqualina Scala
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Raffaella D’Auria
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Antonino Testa
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Andrea Viggiano
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
| | - Francesco Cappello
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy;
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
| | - Rosaria Meccariello
- Department of Movement and Wellbeing Sciences, Parthenope University of Naples, 80133 Naples, Italy;
| | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
- Research Centre for Biomaterials BIONAM, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Antonietta Santoro
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.M.); (N.D.R.); (M.C.C.); (P.S.); (R.D.); (A.V.); (A.S.)
- Research Centre for Biomaterials BIONAM, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
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Preparation and characterization of reusable water/ethylcellulose phase change cold storage microcapsules with high latent heat. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127833] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Encapsulation of Magnesium with Lentil Flour by Using Double Emulsion to Produce Magnesium Enriched Cakes. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02672-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Ahsan Hafiz M, Abbas N, Bukhari NI. Quality by design approach for formulation development and evaluation of carboplatin loaded ethylcellulose nanosponges. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1933978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Muhammad Ahsan Hafiz
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Nasir Abbas
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Nadeem Irfan Bukhari
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
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Gebreel RM, Edris NA, Elmofty HM, Tadros MI, El-Nabarawi MA, Hassan DH. Development and Characterization of PLGA Nanoparticle-Laden Hydrogels for Sustained Ocular Delivery of Norfloxacin in the Treatment of Pseudomonas Keratitis: An Experimental Study. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:399-418. [PMID: 33584095 PMCID: PMC7875077 DOI: 10.2147/dddt.s293127] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/19/2021] [Indexed: 12/20/2022]
Abstract
Aim Norfloxacin (NFX) has low ocular bioavailability. The current work aimed to develop NFX-loaded nanoparticle (NP)-laden hydrogels to improve the ocular potential of NFX, minimize the need for frequent instillations and lower undesirable side effects. Methods NFX-loaded NPs were developed via the double-emulsion/solvent evaporation technique, according to 21.41 full factorial design, using two types of polylactic-co-glycolic acid (PLGA) polymer and four (drug: polymer) ratios. NPs were evaluated for particle size (PS), polydispersity index (PDI), zeta potential (ZP), drug entrapment efficiency percentage (EE%), drug percentage released after 30 min (Q30min) and 12 hours (Q12h), drug percentage permeated through goat corneas after 30 min (P30min) and 12 hours (P12h) and morphology. Two formulae were statistically selected and incorporated into hydroxypropyl methylcellulose (HPMC)-based hydrogels; G1 – G4. The latter systems were evaluated for appearance, clarity, pH, spreadability, rheology, drug percentages released, drug percentages permeated, antimicrobial activity against Pseudomonas aeruginosa, and histopathological changes. Results The selected NPs (NP2 and NP6) were spherical in shape and possessed suitable PS (392.02 nm and 190.51 nm) and PDI (0.17 and 0.18), high magnitude of ZP (−30.43 mV and −33.62 mV), high EE% (79.24% and 91.72%), low Q30min (10.96% and 16.65%) and P30min (17.39% and 21.05%) and promising Q12h (58.23% and 71.20%) and P12h (53.31% and 65.01%), respectively. Clear, spreadable, tolerable, pseudoplastic, and thixotropic HPMC-based hydrogels were developed. They showed more prolonged drug release and drug permeation profiles. NP2- and NP6-laden hydrogels (G3 and G4 systems, respectively) had promising antibacterial activity, and reasonable histopathological safety. Conclusion G3 and G4 are potential ocular delivery systems for NFX.
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Affiliation(s)
- Rana M Gebreel
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Noha A Edris
- Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala M Elmofty
- Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mina I Tadros
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.,Department of Pharmaceutics, Faculty of Pharmacy and Drug Technology, Egyptian Chinese University, Cairo, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Doaa H Hassan
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
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6
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Supercritical emulsion extraction fabricated PLA/PLGA micro/nano carriers for growth factor delivery: Release profiles and cytotoxicity. Int J Pharm 2021; 592:120108. [DOI: 10.1016/j.ijpharm.2020.120108] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/27/2022]
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7
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Wang S, Feng X, Liu P, Wei Y, Xiao B. Blending of PLGA-PEG-PLGA for Improving the Erosion and Drug Release Profile of PCL Microspheres. Curr Pharm Biotechnol 2020; 21:1079-1087. [PMID: 31893987 DOI: 10.2174/1389201021666200101104116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/10/2019] [Accepted: 12/26/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND PCL has a long history as an industrialized biomaterial for preparing microspheres, but its hydrophobic property and slow degradation rate often cause drug degeneration, quite slow drug release rate and undesirable tri-phasic release profile. MATERIALS AND METHODS In this study, we used the blending material of PLGA-PEG-PLGA and PCL to prepare microspheres. The microspheres degradation and drug release behaviors were evaluated through their molecular weight reduction rate, mass loss rate, morphology erosion and drug release profile. The hydrophilic PLGA-PEG-PLGA is expected to improve the degradation and drug release behaviors of PCL microspheres. RESULTS Microspheres in blending materials exhibited faster erosion rates than pure PCL microspheres, forming holes much quickly on the particle's surface for the drug to diffuse out. A higher proportion of PLGA-PEG-PLGA caused faster degradation and erosion rates. The blending microspheres showed much faster drug release rates than pure PCL microspheres. CONCLUSION With blending of 25wt% PLGA-PEG-PLGA, the release rate of microspheres speeded up significantly, while, with a further increase of PLGA-PEG-PLGA proportion (50%, 75%, 100%), it accelerated a little. The microspheres with PCL/PLGA-PEG-PLGA of 1/1 exhibited a linear-like drug release profile. The results could be a guideline for preparing microspheres based on blending materials to obtain a desirable release.
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Affiliation(s)
- Siyuan Wang
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430022, China
| | - Ping Liu
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Youxiu Wei
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Baojun Xiao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430022, China
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8
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Ahangaran F, Navarchian AH, Picchioni F. Material encapsulation in poly(methyl methacrylate) shell: A review. J Appl Polym Sci 2019. [DOI: 10.1002/app.48039] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Fatemeh Ahangaran
- Department of Chemical Engineering, Faculty of EngineeringUniversity of Isfahan Isfahan 81746‐73441 Iran
- Department of Chemical EngineeringUniversity of Groningen Nijenborgh 4, 9747 AG Groningen The Netherlands
| | - Amir H. Navarchian
- Department of Chemical Engineering, Faculty of EngineeringUniversity of Isfahan Isfahan 81746‐73441 Iran
| | - Francesco Picchioni
- Department of Chemical EngineeringUniversity of Groningen Nijenborgh 4, 9747 AG Groningen The Netherlands
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9
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Liu G, Wu Q, Dwivedi P, Hu C, Zhu Z, Shen S, Chu J, Zhao G, Si T, Xu R. Hemoglobin-Laden Microcapsules for Simulating Oxygen Dynamics of Biological Tissue. ACS Biomater Sci Eng 2018; 4:3177-3184. [DOI: 10.1021/acsbiomaterials.8b00830] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangli Liu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Qiang Wu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Pankaj Dwivedi
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Chuanzhen Hu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Shuwei Shen
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Jiaru Chu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Gang Zhao
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Ting Si
- Department of Modern Mechanics, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Ronald Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
- Department of Biomedical Engineering, The Ohio State University, 1080 Carmack Road, Columbus, Ohio 43210, United States
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10
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Bootdee K, Grady BP, Nithitanakul M. Magnetite/poly( D,L-lactide- co-glycolide) and hydroxyapatite/poly( D,L-lactide- co-glycolide) prepared by W/O/W emulsion technique for drug carrier: Evaluation of in vitro release of dexamethasone from composite nanoparticles. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2017.1362638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Kittima Bootdee
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
| | - Brian P. Grady
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Manit Nithitanakul
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
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Huda NH, Gauri B, Benson HAE, Chen Y. A Stability Indicating HPLC Assay Method for Analysis of Rivastigmine Hydrogen Tartrate in Dual-Ligand Nanoparticle Formulation Matrices and Cell Transport Medium. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2018; 2018:1841937. [PMID: 29686925 PMCID: PMC5852878 DOI: 10.1155/2018/1841937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/09/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to develop and validate a method for quantitative analysis of rivastigmine hydrogen tartrate (RHT) in dual-ligand polymeric nanoparticle formulation matrices, drug release medium, and cellular transport medium. An isocratic HPLC analysis method using a reverse phase C18 column and a simple mobile phase without buffer was developed, optimised, and fully validated. Analyses were carried out at a flow rate of 1.5 mL/min at 50°C and monitored at 214 nm. This HPLC method exhibited good linearity, accuracy, and selectivity. The recovery (accuracy) of RHT from all matrices was greater than 99.2%. The RHT peak detected in the samples of a forced degradation study, drug loading study, release study, and cellular transport study was pure and free of matrix interference. The limit of detection (LOD) and limit of quantification (LOQ) of the assay were 60 ng/mL and 201 ng/mL, respectively. The method was rugged with good intra- and interday precision. This stability indicating HPLC method was selective, accurate, and precise for analysing RHT loading and its stability in nanoparticle formulation, RHT release, and cell transport medium.
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Affiliation(s)
- Naz Hasan Huda
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
| | - Bhawna Gauri
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
| | - Heather A. E. Benson
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
| | - Yan Chen
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
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12
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He Y, Liu P, Shi C, Liu Y, Liu S, Feng X, Fu D. The influence of hydrophilic mPEG segment on formation, morphology, and properties of PCL-mPEG microspheres. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yu He
- Department of Orthopaedics; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Ping Liu
- Department of Orthopaedics; Li Yuan Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Chen Shi
- Department of Pharmacy; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Yongwei Liu
- Department of Orthopaedics; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Songxiang Liu
- Department of Orthopaedics; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Xiaobo Feng
- Department of Orthopaedics; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
| | - Dehao Fu
- Department of Orthopaedics; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology (HUST); Wuhan China
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13
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Processing conditions for the production of polystyrene microcapsules containing demineralized water. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Li J, Zhu Y, Teng C, Xiong K, Yang R, Li X. The effects of biomacromolecules on the physical stability of W/O/W emulsions. Journal of Food Science and Technology 2017; 54:469-480. [PMID: 28242946 DOI: 10.1007/s13197-017-2488-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/21/2016] [Accepted: 01/05/2017] [Indexed: 10/20/2022]
Abstract
The effect of bovine serum albumin (BSA), whey protein isolate (WPI), whey protein hydrolysate (WPH), sodium caseinate (SC), carboxymethylcellulose sodium (CMC), fish gelatin (FG), high methoxyl apple pectin (HMAP), low methoxyl apple pectin (LMAP), gum Arabic (GA), ι-carrageenan (CGN), and hydroxypropyl chitosan (HPCTS) on physical stability of internal or external aqueous phase of water-in-oil-in-water (W/O/W) emulsions was evaluated. WPI and CGN in the internal aqueous phase, and GA, HPCTS, and CMC in the external phase reduced the size of emulsion droplets. BSA, WPI, SC, FG, CGN, and HPCTS improved the dilution stability of W/O/W emulsions, but HMAP had a negative effect. BSA, WPI, SC, FG, LMAP, GA, CGN, HPCTS, or CMC significantly improved the thermal stability of W/O/W emulsions. Results also indicated that the addition of CGN (1.0%), HMAP (1.0%), WPH (1.0%), or HPCTS (1.0%) in internal aqueous phase significantly increased the viscosity of emulsions, however, addition to the external aqueous phase had insignificant effects. A protein-knockout experiment confirmed that proteins as biomacromolecules, were the key factor in improving physical stability of emulsions.
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Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing, 100048 People's Republic of China
| | - Yunping Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing, 100048 People's Republic of China
| | - Chao Teng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Key Laboratory of Flavor Chemistry, Beijing, 100048 People's Republic of China
| | - Ke Xiong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Key Laboratory of Flavor Chemistry, Beijing, 100048 People's Republic of China
| | - Ran Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Key Laboratory of Flavor Chemistry, Beijing, 100048 People's Republic of China
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People's Republic of China.,Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing, 100048 People's Republic of China
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Jeong H, Samdani KJ, Yoo DH, Lee DW, Kim NH, Yoo IS, Lee JH. Resveratrol cross-linked chitosan loaded with phospholipid for controlled release and antioxidant activity. Int J Biol Macromol 2016; 93:757-766. [DOI: 10.1016/j.ijbiomac.2016.09.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/23/2016] [Accepted: 09/05/2016] [Indexed: 12/16/2022]
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16
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Li J, Shi Y, Zhu Y, Teng C, Li X. Effects of Several Natural Macromolecules on the Stability and Controlled Release Properties of Water-in-Oil-in-Water Emulsions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3873-3880. [PMID: 27137850 DOI: 10.1021/acs.jafc.6b00956] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Water-in-oil-in-water (W/O/W) emulsions are effective vehicles for embedding application of active compounds but limited by their thermodynamic instability and rapid release properties. The present study added bovine serum albumin, whey protein isolate, whey protein hydrolysate, sodium caseinate, carboxymethylcellulose sodium, fish gelatin, apple pectin, gum arabic, ι-carrageenan, and hydroxypropyl chitosan separately to the internal or external aqueous phase to investigate their effects on the physical stabilities and controlled release properties of W/O/W emulsions. The effects of the natural macromolecules in the internal and external aqueous phases were different and depended upon the macromolecule structure and its mass fraction. The addition of the natural macromolecule strengthened the interfaces of emulsions, which improved the physical stability. The natural macromolecules that improved the stability often did not improve controlled release. Therefore, the balance between these properties needs to be considered when adding natural macromolecules to a W/O/W emulsion.
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Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University , Beijing 100048, People's Republic of China
- Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients , Beijing 100048, People's Republic of China
| | - Yiheng Shi
- College of Food Science and Engineering, Northwest Agricultural and Forestry University , Yangling, Shanxi 712100, People's Republic of China
| | - Yunping Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University , Beijing 100048, People's Republic of China
- Beijing Key Laboratory of Flavor Chemistry , Beijing 100048, People's Republic of China
| | - Chao Teng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University , Beijing 100048, People's Republic of China
- Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients , Beijing 100048, People's Republic of China
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University , Beijing 100048, People's Republic of China
- Beijing Key Laboratory of Flavor Chemistry , Beijing 100048, People's Republic of China
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Bhomia R, Trivedi V, Coleman NJ, Mitchell JC. The thermal and storage stability of bovine haemoglobin by ultraviolet-visible and circular dichroism spectroscopies. J Pharm Anal 2016; 6:242-248. [PMID: 29403989 PMCID: PMC5762605 DOI: 10.1016/j.jpha.2016.02.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/28/2016] [Accepted: 02/29/2016] [Indexed: 12/04/2022] Open
Abstract
The effects of temperature, pH and long-term storage on the secondary structure and conformation changes of bovine haemoglobin (bHb) were studied using circular dichroism (CD) and ultraviolet--visible (UV–vis) spectroscopies. Neural network software was used to deconvolute the CD data to obtain the fractional content of the five secondary structures. The storage stability of bHb solutions in pH 6, 7 and 8 buffers was significantly higher at 4 °C than at 23 °C for the first 3 days. A complete denaturation of bHb was observed after 40 days irrespective of storage temperature or pH. The bHb solutions were also exposed to heating and cooling cycles between 25 and 65 °C and structural changes were followed by UV–vis and CD spectroscopies. These experiments demonstrated that α-helix content of bHb decreased steadily with the increasing temperature above 35 °C at all pH values. The loss in α-helicity and gain in random coil conformations was pH-dependent and the greatest under alkaline conditions. Furthermore, there was minimal recovery of the secondary structure content upon cooling to 25 °C. The use of bHb as a model drug is very common and this study elucidates the significance of storage and processing conditions on its stability.
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Affiliation(s)
- Ruchir Bhomia
- School of Science, University of Greenwich, Central Avenue, Chatham Maritime, ME4 4TB, U.K
| | - Vivek Trivedi
- School of Science, University of Greenwich, Central Avenue, Chatham Maritime, ME4 4TB, U.K
| | - Nichola J Coleman
- School of Science, University of Greenwich, Central Avenue, Chatham Maritime, ME4 4TB, U.K
| | - John C Mitchell
- School of Science, University of Greenwich, Central Avenue, Chatham Maritime, ME4 4TB, U.K
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18
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Preparation of uniform starch microcapsules by premix membrane emulsion for controlled release of avermectin. Carbohydr Polym 2016; 136:341-9. [DOI: 10.1016/j.carbpol.2015.09.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 11/20/2022]
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19
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Lai YT, Ohta S, Akamatsu K, Nakao SI, Sakai Y, Ito T. Size-dependent interaction of cells and hemoglobin-albumin based oxygen carriers prepared using the SPG membrane emulsification technique. Biotechnol Prog 2015; 31:1676-84. [DOI: 10.1002/btpr.2170] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/27/2015] [Indexed: 01/09/2023]
Affiliation(s)
- Yao-Tong Lai
- Dept. of Chemical System Engineering; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Seiichi Ohta
- Center for Disease Biology and Integrative Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Kazuki Akamatsu
- Dept. of Environmental Chemistry and Chemical Engineering; Kogakuin University; 2665-1, Nakano-machi Hachioji-shi Tokyo 192-0015 Japan
| | - Shin-ichi Nakao
- Dept. of Environmental Chemistry and Chemical Engineering; Kogakuin University; 2665-1, Nakano-machi Hachioji-shi Tokyo 192-0015 Japan
| | - Yasuyuki Sakai
- Institute of Industrial Science, The University of Tokyo; 4-6-1, Komaba Meguro-ku Tokyo 153-8505 Japan
| | - Taichi Ito
- Dept. of Chemical System Engineering; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Center for Disease Biology and Integrative Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
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20
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Zhang J, Reineccius GA. Preparation and stability of W/O/W emulsions containing sucrose as weighting agent. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3269] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jian Zhang
- Department of Food Science and Nutrition; University of Minnesota; 1334 Eckles Avenue St Paul MN 55108 USA
| | - Gary A. Reineccius
- Department of Food Science and Nutrition; University of Minnesota; 1334 Eckles Avenue St Paul MN 55108 USA
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Chen AZ, Kang YQ, Wang SB, Tang N, Su XQ. Preparation and antitumor effect evaluation of composite microparticles co-loaded with siRNA and paclitaxel by a supercritical process. J Mater Chem B 2015; 3:6439-6447. [PMID: 32262552 DOI: 10.1039/c5tb00715a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The co-delivery of siRNA and therapeutic agents provides an effective method for cancer chemotherapy by avoiding drug resistance during the treatment. With a combination of ionic gelation and supercritical fluid technology, nanoparticle-embedded composite microparticles (CMPs) co-loaded with siRNA and paclitaxel (siRNA-PTX-CMPs) were successfully prepared. The results show that CMPs embedded with nanoparticles with a diameter of 50-100 nm exhibited a spherical shape and core-shell structure with a mean diameter of 323 nm. The encapsulation efficiency of siRNA in chitosan nanoparticles (CS NPs) was 96.97%. The drug load and encapsulation efficiency of PTX-loaded CMPs (5% dosage) were 1.40% and 27.95%, respectively; both these increased with an increase in dosage. It was found that no change had occurred in the functional groups of the components during the supercritical process, while the physical form of PTX had shifted to an amorphous state. In the cell experiments, the CMPs clustered around the nucleus after being taken up by the Bcap-37 cells. The results of the antitumor effect experiments revealed that the co-loaded siRNA-PTX-CMPs achieved a significantly better synergistic effect than single dosages, which indicated that the co-delivery system developed by the supercritical process could have potential in the application of cancer chemotherapy.
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Affiliation(s)
- Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, China.
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22
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Feng SB, Fu DH, Nie L, Zou P, Suo JP. A detailed view of PLGA-mPEG microsphere formation by double emulsion solvent evaporation method. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1660-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Preparation of uniform-sized hemoglobin–albumin microspheres as oxygen carriers by Shirasu porous glass membrane emulsification technique. Colloids Surf B Biointerfaces 2015; 127:1-7. [DOI: 10.1016/j.colsurfb.2015.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 12/03/2014] [Accepted: 01/11/2015] [Indexed: 01/02/2023]
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Feng S, Lu F, Wang Y, Suo J. Comparison of the degradation and release behaviors of poly(lactide-co-glycolide)-methoxypoly(ethylene glycol) microspheres prepared with single- and double-emulsion evaporation methods. J Appl Polym Sci 2015. [DOI: 10.1002/app.41943] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shuibin Feng
- State Key Laboratory of Material Processing and Die & Mold Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Feng Lu
- State Key Laboratory of Material Processing and Die & Mold Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Yan Wang
- State Key Laboratory of Material Processing and Die & Mold Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Jinping Suo
- State Key Laboratory of Material Processing and Die & Mold Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
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Effect of chitosan concentration on PLGA microcapsules for controlled release and stability of resveratrol. Int J Biol Macromol 2015; 72:531-6. [DOI: 10.1016/j.ijbiomac.2014.08.053] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/15/2014] [Accepted: 08/20/2014] [Indexed: 01/10/2023]
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26
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Ma G. Microencapsulation of protein drugs for drug delivery: strategy, preparation, and applications. J Control Release 2014; 193:324-40. [PMID: 25218676 DOI: 10.1016/j.jconrel.2014.09.003] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 11/25/2022]
Abstract
Bio-degradable poly(lactide) (PLA)/poly(lactide-glycolide) (PLGA) and chitosan microspheres (or microcapsules) have important applications in Drug Delivery Systems (DDS) of protein/peptide drugs. By encapsulating protein/peptide drugs in the microspheres, the serum drug concentration can be maintained at a higher constant value for a prolonged time, or injection formulation can be changed to orally or mucosally administered formulation. PLA/PLGA and chitosan are most often used in injection formulation and oral formulation. However, in the preparation and applications of PLA/PLGA and chitosan microspheres containing protein/peptide drugs, the problems of broad size distribution and poor reproducibility of microspheres, and deactivation of protein during the preparation, storage and release, are still big challenges. In this article, the techniques for control of the diameter of microspheres and microcapsules will be introduced at first, then the strategies about how to maintain the bioactivity of protein drugs during preparation and drug release will be reviewed and developed in our research group. The membrane emulsification techniques including direct membrane emulsification and rapid membrane emulsification processes were developed to prepare uniform-sized microspheres, the diameter of microspheres can be controlled from submicron to 100μm by these two processes, and the reproducibility of products can be guaranteed. Furthermore, compared with conventional stirring method, the big advantages of membrane emulsification process were that the uniform microspheres with much higher encapsulation efficiency can be obtained, and the release behavior can be adjusted by selecting microsphere size. Mild membrane emulsification condition also can prevent the deactivation of proteins, which frequently occurred under high shear force in mechanical stirring, sonification, and homogenization methods. The strategies for maintaining the bioactivity of protein drug were developed, such as adding additives into protein solution, using solid drug powder instead of protein solution, and employing hydrophilic poly(lactide)-poly(ethylene glycol) (PELA) as a wall material for encapsulation in PLA/PLGA microspheres/microcapsules; developing step-wise crosslinking process, self-solidification process, and adsorbing protein drug into preformed chitosan microsphere with hollow-porous morphology for encapsulation in chitosan microsphere. As a result, animal test demonstrated that PELA microcapsules with uniform size and containing recombinant human growth hormone (rhGH) can maintain higher blood drug concentration for 2months, and increased animal weight more apparently only by single dose, compared with PLA and PLGA microcapsules; hollow-porous chitosan microsphere loading insulin decreased blood glucose level largely when it was used as a carrier for oral administration.
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Affiliation(s)
- Guanghui Ma
- State Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, No. 1 Bei-Er-Tiao, Zhong-Guan-Cun, Beijing 100190, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), No.92 Weijin Road, Nankai District, Tianjin 300072, China
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Feng S, Nie L, Zou P, Suo J. Effects of drug and polymer molecular weight on drug release from PLGA-mPEG microspheres. J Appl Polym Sci 2014. [DOI: 10.1002/app.41431] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuibin Feng
- State Key Laboratory of Mould Technology; College of Materials Science and Engineering, Huazhong University of Science and Technology (HUST); Wuhan 430074 People's Republic of China
| | - Lei Nie
- State Key Laboratory of Mould Technology; College of Materials Science and Engineering, Huazhong University of Science and Technology (HUST); Wuhan 430074 People's Republic of China
| | - Peng Zou
- State Key Laboratory of Mould Technology; College of Materials Science and Engineering, Huazhong University of Science and Technology (HUST); Wuhan 430074 People's Republic of China
| | - Jinping Suo
- State Key Laboratory of Mould Technology; College of Materials Science and Engineering, Huazhong University of Science and Technology (HUST); Wuhan 430074 People's Republic of China
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28
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Insight into the fabrication of polymeric particle based oxygen carriers. Int J Pharm 2014; 468:75-82. [DOI: 10.1016/j.ijpharm.2014.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/07/2014] [Accepted: 04/03/2014] [Indexed: 12/20/2022]
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29
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Li B, Qi Y, He S, Wang Y, Xie Z, Jing X, Huang Y. Asymmetric copolymer vesicles to serve as a hemoglobin vector for ischemia therapy. Biomater Sci 2014; 2:1254-1261. [DOI: 10.1039/c4bm00123k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Ghasemian E, Vatanara A, Rouholamini Najafabadi A, Rouini MR, Gilani K, Darabi M. Preparation, characterization and optimization of sildenafil citrate loaded PLGA nanoparticles by statistical factorial design. Daru 2013; 21:68. [PMID: 24355133 PMCID: PMC3880179 DOI: 10.1186/2008-2231-21-68] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 08/01/2013] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND THE AIM OF THE STUDY The objective of the present study was to formulate and optimize nanoparticles (NPs) of sildenafil-loaded poly (lactic-co-glycolic acid) (PLGA) by double emulsion solvent evaporation (DESE) method. The relationship between design factors and experimental data was evaluated using response surface methodology. METHOD A Box-Behnken design was made considering the mass ratio of drug to polymer (D/P), the volumetric proportion of the water to oil phase (W/O) and the concentration of polyvinyl alcohol (PVA) as the independent agents. PLGA-NPs were successfully prepared and the size (nm), entrapment efficiency (EE), drug loading (DL) and cumulative release of drug from NPs post 1 and 8 hrs were assessed as the responses. RESULTS The NPs were prepared in a spherical shape and the sizes range of 240 to 316 nm. The polydispersity index of size was lower than 0.5 and the EE (%) and DL (%) varied between 14-62% and 2-6%, respectively. The optimized formulation with a desirability factor of 0.9 was selected and characterized. This formulation demonstrated the particle size of 270 nm, EE of 55%, DL of 3.9% and cumulative drug release of 79% after 12 hrs. In vitro release studies showed a burst release at the initial stage followed by a sustained release of sildenafil from NPs up to 12 hrs. The release kinetic of the optimized formulation was fitted to Higuchi model. CONCLUSIONS Sildenafil citrate NPs with small particle size, lipophilic feature, high entrapment efficiency and good loading capacity is produced by this method. Characterization of optimum formulation, provided by an evaluation of experimental data, showed no significant difference between calculated and measured data.
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Affiliation(s)
- Elham Ghasemian
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Vatanara
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Reza Rouini
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Kambiz Gilani
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Darabi
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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31
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Xiong Y, Steffen A, Andreas K, Müller S, Sternberg N, Georgieva R, Bäumler H. Hemoglobin-based oxygen carrier microparticles: synthesis, properties, and in vitro and in vivo investigations. Biomacromolecules 2012; 13:3292-300. [PMID: 22978797 DOI: 10.1021/bm301085x] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bovine hemoglobin microparticles (Hb-MPs) as suitable oxygen carriers are fabricated easily by three key steps: coprecipitation of Hb and CaCO(3) to make Hb-CaCO(3)-microparticles (Hb-CaCO(3)-MPs), cross-linking by glutaraldehyde (GA) to polymerize the Hb and dissolution of CaCO(3) template to obtain pure Hb-MPs. The Hb entrapment efficiency ranged from 8 to 50% corresponding to a hemoglobin quantity per Hb-MP of at least one-third of that in one erythrocyte. The Hb-MPs are spherical, with an average diameter of 3.2 μm and high oxygen affinity. The methemoglobin level was increased after preparation, but can be reduced to less than 7% with ascorbic acid. Phagocytosis assays showed low immunogenicity of Hb-MPs if the particles were cross-linked with low concentration of GA and treated with sodium borohydride. Magnetite-loaded Hb-MPs circulated up to 4 days after intravenous application.
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Affiliation(s)
- Yu Xiong
- Charité-Universitätsmedizin Berlin, Berlin, Germany
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32
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Khoee S, Sattari A, Atyabi F. Physico-chemical properties investigation of cisplatin loaded polybutyladipate (PBA) nanoparticles prepared by w/o/w. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.09.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Encapsulation of azithromycin into polymeric microspheres by reduced pressure-solvent evaporation method. Int J Pharm 2012; 433:79-88. [PMID: 22583850 DOI: 10.1016/j.ijpharm.2012.04.081] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 04/14/2012] [Accepted: 04/30/2012] [Indexed: 11/20/2022]
Abstract
Azithromycin loaded microspheres with blends of poly-l-lactide and ploy-D,L-lactide-co-glycolide as matrices were prepared by the atmosphere-solvent evaporation (ASE) and reduced pressure-solvent evaporation (RSE) method. Both the X-ray diffraction spectra and DSC thermographs demonstrated that poly-L-lactide existed in a crystalline form in the ASE microspheres, while an amorphous form was present in the RSE formulations. Besides, solvent removal at atmosphere gave microspheres of porous and rough surfaces, but smooth surfaces appeared in the RSE microspheres. The incorporation efficiency as well as the burst release (cumulative release in the first 24h) in the ASE formulations was 39.94 ± 1.18% and 23.96 ± 2.01% respectively, yet the encapsulation efficiency of the microspheres fabricated under 385 mmHg was high up to 57.19 ± 3.81% and the burst release was 4.12 ± 0.15%. The in vitro drug release studies indicated that the ASE microspheres presented a zero-order profile; while the RSE formulations followed first-order kinetics. Other factors including solidification time, temperature, drug to polymer ratio and pH value of the continuous phase could also influence the physicochemical characteristics and release profiles of microspheres. In conclusion, the overall improvement of microspheres in appearance, encapsulation efficiency and controlled drug release through the RSE method could be easily fulfilled under optimal preparation conditions.
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34
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Characterizing zeta potential of functional nanofibers in a microfluidic device. J Colloid Interface Sci 2012; 372:252-60. [DOI: 10.1016/j.jcis.2012.01.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Revised: 01/06/2012] [Accepted: 01/07/2012] [Indexed: 11/18/2022]
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35
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Tan MXL, Danquah MK. Drug and Protein Encapsulation by Emulsification: Technology Enhancement Using Foam Formulations. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201100358] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Sánchez-Navarro MM, Cuesta-Garrote N, Arán-Aís F, Orgilés-Barceló C. Microencapsulation ofMelaleuca alternifolia(Tea Tree) Oil as Biocide for Footwear Applications. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2011.616126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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37
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Fabrication strategy for amphiphilic microcapsules with narrow size distribution by premix membrane emulsification. Colloids Surf B Biointerfaces 2011; 87:399-408. [DOI: 10.1016/j.colsurfb.2011.05.051] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 04/29/2011] [Accepted: 05/27/2011] [Indexed: 11/20/2022]
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Gao W, Sha B, Zou W, Liang X, Meng X, Xu H, Tang J, Wu D, Xu L, Zhang H. Cationic amylose-encapsulated bovine hemoglobin as a nanosized oxygen carrier. Biomaterials 2011; 32:9425-33. [PMID: 21889201 DOI: 10.1016/j.biomaterials.2011.08.046] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 08/16/2011] [Indexed: 12/31/2022]
Abstract
Nanosized hemoglobin-based oxygen carriers are one of the most promising blood substitutes. In the present study, a comprehensive strategy for the preparation of nanosized cationic amylose-encapsulated hemoglobins (NCAHbs) was developed. First, cationic amylase (CA) was synthesized from amylose and quaternary ammonium salt by an etherification reaction. The structure of CA was characterized using Fourier transform infrared spectrophotometry (FTIR) and proton nuclear magnetic resonance spectrophotometry ((1)H NMR). The degree of substitution and the zeta potential were also measured. Then, the NCAHbs were prepared by electrostatic adhesion, reverse micelles and cross-linking. The UV-visible spectrophotometer was used to measure the entrapment efficiency (EE%) and drug loading efficiency (DL%) of the NCAHbs. Transmission electron microscopy and Malvern Nano-zs 90 analyzer were used to observe the size distribution and morphology of particles. Chemical structure was determined from the FTIR spectrum. A Hemox analyzer was used to measure the P(50) and Hill coefficients. A lethal hemorrhagic shock model in rats was used to evaluate the therapeutic effect of the NCAHbs. The results showed that the combined methods improved the size, stability, EE%, DL%, and oxygen-carrying capacity of the NCAHbs. The average diameter of the NCAHbs was 92.53 ± 3.64 nm, with a narrow polydispersity index of 0.027. The EE% was 80.05% ± 1.56% and DL% was 61.55% ± 1.41%. The P(50) and Hill coefficient were equal to 28.96 ± 1.33 mmHg and 2.55 ± 0.22, respectively. The size of NCAHbs remained below 200 nm for six days in PBS solution. The NCAHbs could effectively prevent lung injury from progressing to lethal hemorrhagic shock because they acted as both a volume expander and an oxygen carrier.
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Affiliation(s)
- Wei Gao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
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Synthesis and characterization of star-shaped poly (lactide-co-glycolide) and its drug-loaded microspheres. Polym Bull (Berl) 2011. [DOI: 10.1007/s00289-011-0516-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Li T, Jing X, Huang Y. Polymer/hemoglobin assemblies: biodegradable oxygen carriers for artificial red blood cells. Macromol Biosci 2011; 11:865-75. [PMID: 21312333 DOI: 10.1002/mabi.201000469] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Indexed: 01/05/2023]
Abstract
In routine clinical procedures, blood transfusion is now suffering from the defects of the blood products, like cross-matching, short storage time and virus infection. Various blood substitutes have been designed by researchers through continual efforts. With recent progress in nanotechnology, new types of artificial red blood cells with cellular structure are available. This article aims to describe some artificial red blood cells which encapsulate or conjugate hemoglobin molecules through various approaches, especially the nanoscale self-assembly technique, to mitigate the adverse effects of free hemoglobin molecules. These types of artificial red blood cell systems, which make use of biodegradable polymers as matrix materials, show advantages over the traditional types.
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Affiliation(s)
- Taihang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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42
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Porta GD, Falco N, Reverchon E. Continuous supercritical emulsions extraction: A new technology for biopolymer microparticles production. Biotechnol Bioeng 2010; 108:676-86. [DOI: 10.1002/bit.22972] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 09/28/2010] [Accepted: 10/01/2010] [Indexed: 11/06/2022]
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Shan X, Chen L, Yuan Y, Liu C, Zhang X, Sheng Y, Xu F. Quantitative analysis of hemoglobin content in polymeric nanoparticles as blood substitutes using Fourier transform infrared spectroscopy. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:241-249. [PMID: 19730991 DOI: 10.1007/s10856-009-3864-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 08/26/2009] [Indexed: 05/28/2023]
Abstract
Based on the penetrability of IR within the polymeric nanoparticles, a novel Fourier transform infrared spectroscopy (FTIR) method, with polyacrylonitrile (PAN) as the internal reference standard, was developed to quantify the hemoglobin (Hb) content in Hb-based polymeric nanoparticles (HbPN). The HbPN was fabricated by double emulsion method from poly(ethylene glycol)-poly(lactic acid)-poly(ethylene glycol) triblock copolymers. Depending on the characteristic un-overlapped IR absorbances at 1540 cm(-1) of Hb (amide II) and at 2241 cm(-1) of PAN(-C[triple bond]N), calibration equations, presenting the peak height ratio of Hb and PAN as a function of the weight ratio of Hb and PAN, were established. This new quantification method is validated and used to the determination Hb content in HbPN. Due to the good results of this calibration strategy, the proposed simple FTIR approach with minimal sample-needed and solvent-free makes it useful for routine analysis of protein content and could be also applied to any other drug/protein encapsulated particles.
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Affiliation(s)
- Xiaoqian Shan
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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Meng F, Manjula BN, Tsai AG, Cabrales P, Intaglietta M, Smith PK, Prabhakaran M, Acharya SA. Hexa-thiocarbamoyl phenyl PEG5K Hb: vasoactivity and structure: influence of rigidity of the conjugation linkage on the PEGylation induced plasma expander-like solution properties of PEG-Hb adducts. Protein J 2009; 28:199-212. [PMID: 19653083 DOI: 10.1007/s10930-009-9185-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new hexaPEGylated hemoglobin, (TCP-PEG5K)(6)-Hb (TCP, thiocarbamoyl phenyl) has been developed using PEG-phenyl-isothiocyanate and its vasoactivity and structure has been investigated. Of the six PEG5K chains of (TCP-PEG5K)(6)-Hb, 4 are conjugated to the alpha-amino groups of Hb, and the other 2 chains are distributed on epsilon-amino groups, identified as Lys-40(alpha) (approximately 45%), Lys-56(alpha) (approximately 25%), and Lys-8(beta) (approximately 24%). The studies with hamster infused with a bolus of a 4 gm % solution of (TCP-PEG5K)(6)-Hb equivalent to 10% of their blood volume have established that this new hexaPEGylated Hb is vasoinactive. The viscosity and the colloidal osmotic pressure of (TCP-PEG5K)(6)-Hb at 4% is 1.9 cP and 69.7 mmHg, respectively. The molecular radius of (TCP-PEG5K)(6)-Hb is about 4.6 nm and is significantly smaller than hexaPEGylated Hbs developed using other direct and extension arm facilitated PEGylation platform. The presence of an outside the central cavity intramolecular crosslink, succinimidophenyl-PEG2K between Cys-93(beta, beta') in (TCP-PEG5K)(6)-betabeta-Hb strongly impacts its solution properties. These patterns of influence suggest that the inter-dimeric interactions in (TCP-PEG5K)(6)-Hb is weakened just as with other direct PEGylation platforms, and (SP-PEG5K)(6)-Hb generated by EAF-PEGylation is unique in not inducing this effect. A comparison of the properties of hexaPEGylated Hbs establishes that rigidity of the conjugation linkage between PEG and Hb plays a significant influence on the resultant dictating solution properties and/structure/conformation of PEG-Hb adduct.
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Affiliation(s)
- Fantao Meng
- Department of Physiology and Biophysics, Albert Einstein College of Medicine of Yeshiva University, 1300 Morris Park Avenue, Bronx, NY, USA
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Li F, Tian F, Liu CJ, Zhao YL. Preparation and characterization of improved microspheres containing bovine serum albumin. J Appl Polym Sci 2009. [DOI: 10.1002/app.30478] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhang X, Liu C, Yuan Y, Shan X, Sheng Y, Xu F. A noninvasive method for measuring the oxygen binding-releasing capacity of hemoglobin-loaded polymeric nanoparticles as oxygen carrier. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1025-1030. [PMID: 19199110 DOI: 10.1007/s10856-008-3676-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2008] [Accepted: 12/16/2008] [Indexed: 05/27/2023]
Abstract
Based on the strong penetration capacity of near infrared lights (NIRs) and different absorption of oxyhemoglobin and deoxyhemoglobin in NIRs region, a novel noninvasive method, with the aid of an airproof-equilibrium apparatus, was developed to determine the oxygen binding-releasing capacity, including oxygen dissociation curve (ODC) and P(50), of the hemoglobin-loaded polymeric nanoparticles (HbP) in this study. The measured ODC of the PLA-PEG HbP was very close to that of the native hemoglobin, and the corresponding P(50) (26.1 mmHg) was also near to the native precursor protein (27.3 mmHg), indicative of the validity of the method proposed. To further verify the method proposed, the oxygen binding-releasing capacity of the HbPs prepared by PCL, PCL-PEG, PLA were also investigated with human blood as control. These results indicated that the method developed here enabled accurate and noninvasive determination of the oxygen binding-releasing capacity of the biodegradable polymeric oxygen carriers.
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Affiliation(s)
- Xiaolan Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, People's Republic of China.
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Karataş A, Sonakin O, Kiliçarslan M, Baykara T. Poly (epsilon-caprolactone) microparticles containing Levobunolol HCl prepared by a multiple emulsion (W/O/W) solvent evaporation technique: effects of some formulation parameters on microparticle characteristics. J Microencapsul 2009; 26:63-74. [PMID: 18608798 DOI: 10.1080/02652040802141039] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of this study was to prepare poly (epsilon-caprolactone) (PCL) microparticles of Levobunolol HC1 (L-HC1) for use as an anti-glaucomatous drug to the eye. The double emulsion (W/O/W) solvent evaporation technique was used for encapsulating L-HC1 as a hydrophilic drug. The study examined the impact of different factors including the pH and volume of the external aqueous phase, the concentration of polyvinylalcohol (PVA) and Pluronic F68 (PF68) used as stabilizers and drug/polymer ratios on the characteristics of the microparticles. Scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) were used to identify the physical state of the drug and polymer. The zeta potential of the particles was also identified. Entrapment efficiency was found to be highest with a 0.5% PVA concentration and 100 mL volume of external aqueous phase at pH 12. The high efficiency was due to a reduction in the degree of drug ionization. The microparticles were spherical and appropriately sized for ophthalmic application. Drug release from the microparticles appears to consist of two components, with an initial rapid release followed by a slower stage. Drug release was slower when the microparticle was incorporated into the thermally reversible gel (Pluronic F127) in comparison to drug release from the free drug incorporated into the gel and drug release from the free microparticle.
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Affiliation(s)
- Ayşegül Karataş
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara University, Tandoğan, Ankara, Turkey.
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Zhang X, Liu C, Yuan Y, Shan X, Sheng Y, Xu F. Reduction and suppression of methemoglobin loaded in the polymeric nanoparticles intended for blood substitutes. J Biomed Mater Res B Appl Biomater 2008; 87:354-63. [DOI: 10.1002/jbm.b.31110] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Piras AM, Dessy A, Chiellini F, Chiellini E, Farina C, Ramelli M, Della Valle E. Polymeric nanoparticles for hemoglobin-based oxygen carriers. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2008; 1784:1454-61. [DOI: 10.1016/j.bbapap.2008.03.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 03/19/2008] [Accepted: 03/27/2008] [Indexed: 10/22/2022]
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Li M, Rouaud O, Poncelet D. Microencapsulation by solvent evaporation: state of the art for process engineering approaches. Int J Pharm 2008; 363:26-39. [PMID: 18706988 DOI: 10.1016/j.ijpharm.2008.07.018] [Citation(s) in RCA: 318] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2008] [Revised: 07/15/2008] [Accepted: 07/18/2008] [Indexed: 11/17/2022]
Abstract
Microencapsulation by solvent evaporation technique is widely used in pharmaceutical industries. It facilitates a controlled release of a drug, which has many clinical benefits. Water insoluble polymers are used as encapsulation matrix using this technique. Biodegradable polymer PLGA (poly(lactic-co-glycolic acid)) is frequently used as encapsulation material. Different kinds of drugs have been successfully encapsulation: for example hydrophobic drugs such as cisplatin, lidocaine, naltrexone and progesterone; and hydrophilic drugs such as insulin, proteins, peptide and vaccine. The choice of encapsulation materials and the testing of the release of drug have been intensively investigated. However process-engineering aspects of this technique remain poorly reported. To succeed in the controlled manufacturing of microspheres, it is important to investigate the latter. This article reviews the current state of the art concerning this technique by focusing on the influence of the physical properties of materials and operating conditions on the microspheres obtained. Based on the existing results and authors' reflection, it gives rise to reasoning and suggested choices of materials and process conditions. A part of this paper is also dedicated to numerical models on the solvent evaporation and the solidification of microspheres. This review reveals also the surprising lack of knowledge on certain aspects, such as the mechanism of formation of pores in the microspheres and the experimental study on the solidification of microspheres.
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Affiliation(s)
- Ming Li
- ENITIAA, GEPEA - UMR CNRS 6144, Rue de la Géraudière, Nantes, France.
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