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Zhu L, Liu Y, Liu J, Qiu X, Lin L. Preparation and characterization of tea tree essential oil microcapsule-coated packaging paper with bacteriostatic effect. Food Chem X 2024; 23:101510. [PMID: 38947341 PMCID: PMC11214406 DOI: 10.1016/j.fochx.2024.101510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 07/02/2024] Open
Abstract
We prepared tea tree essential oil microcapsules, and the microcapsules and pullulan were coated on kraft paper to prepare an antibacterial paper. The antibacterial activity, structural characterization, and thermal stability of the prepared microcapsules and packaging paper were then tested. We found that the retention rate of microcapsules reached 87.1% after a 70 min of high-temperature treatment. The minimum inhibitory concentrations of microcapsules to S. aureus and E. coli were 112 mg/mL and 224 mg/mL, and the bacteriostatic zones of the packaging paper to E. coli and S. aureus were 17.49 mm and 22.75 mm, respectively. The prepared microcapsules were irregular. The paper coating was formed via hydrogen bonding, which filled the pores of paper fibers. When compared with the base paper, the roughness of the paper was reduced to 7.16 nm (Rq) and 5.61 nm (Ra), and no thermal decomposition occurred at <288 °C, which together implies a good application prospect.
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Affiliation(s)
- Lin Zhu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
| | - Yijun Liu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
| | - Jiameng Liu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
| | - Xunxia Qiu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
| | - Lijing Lin
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
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2
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In situ encapsulation of biologically active ingredients into polymer particles by polymerization in dispersed media. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2022.101637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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3
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Novac M, Musuc AM, Ozon EA, Sarbu I, Mitu MA, Rusu A, Gheorghe D, Petrescu S, Atkinson I, Lupuliasa D. Manufacturing and Assessing the New Orally Disintegrating Tablets, Containing Nimodipine-hydroxypropyl-β-cyclodextrin and Nimodipine-methyl-β-cyclodextrin Inclusion Complexes. Molecules 2022; 27:molecules27062012. [PMID: 35335371 PMCID: PMC8955142 DOI: 10.3390/molecules27062012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 01/10/2023] Open
Abstract
The aim of the present study was to manufacture new orally disintegrating tablets containing nimodipine-hydroxypropyl-β-cyclodextrin and nimodipine-methyl-β-cyclodextrin inclusion complexes. For obtaining a better quality of the manufactured tablets, three methods of the preparation of inclusion complexes, in a 1:1 molar ratio, were used comparatively; namely, a solid-state kneading method and two liquid state coprecipitation and lyophilization techniques. The physical and chemical properties of the obtained inclusion complexes, as well as their physical mixtures, were investigated using Fourier transformed infrared spectroscopy, scanning electron microscopy, X-ray diffraction analyses, and differential scanning calorimetry. The results showed that the lyophilization method can be successfully used for a better complexation. Finally, the formulation and precompression studies for tablets for oral dispersion, containing Nim-HP-β-CD and Nim-Me-β-CD inclusion complexes, were successfully assessed.
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Affiliation(s)
- Marian Novac
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.N.); (D.L.)
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.R.); (D.G.); (S.P.); (I.A.)
- Correspondence: (A.M.M.); (E.A.O.); (I.S.); (M.A.M.)
| | - Emma Adriana Ozon
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.N.); (D.L.)
- Correspondence: (A.M.M.); (E.A.O.); (I.S.); (M.A.M.)
| | - Iulian Sarbu
- Department of Pharmaceutical Physics and Biophysics, Drug Industry and Pharmaceutical Biotechnologies, Faculty of Pharmacy, “Titu Maiorescu” University, 004051 Bucharest, Romania
- Correspondence: (A.M.M.); (E.A.O.); (I.S.); (M.A.M.)
| | - Mirela Adriana Mitu
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.N.); (D.L.)
- Correspondence: (A.M.M.); (E.A.O.); (I.S.); (M.A.M.)
| | - Adriana Rusu
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.R.); (D.G.); (S.P.); (I.A.)
| | - Daniela Gheorghe
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.R.); (D.G.); (S.P.); (I.A.)
| | - Simona Petrescu
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.R.); (D.G.); (S.P.); (I.A.)
| | - Irina Atkinson
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.R.); (D.G.); (S.P.); (I.A.)
| | - Dumitru Lupuliasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.N.); (D.L.)
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Russo M, Spinella A, Di Vincenzo A, Lazzara G, Correro MR, Shahgaldian P, Lo Meo P, Caponetti E. Synergistic Activity of Silver Nanoparticles and Polyaminocyclodextrins in Nanosponge Architectures. ChemistrySelect 2019. [DOI: 10.1002/slct.201803424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marco Russo
- Department STEBICEF; University of Palermo; V.le delle Scienze pad. 17-90128 Palermo Italy
| | - Alberto Spinella
- Centro Grandi Apparecchiature - AteNCenter; University of Palermo; Via F. Marini 14 - 90128 Palermo Italy
| | - Antonella Di Vincenzo
- Department STEBICEF; University of Palermo; V.le delle Scienze pad. 17-90128 Palermo Italy
| | - Giuseppe Lazzara
- Department of Physics and Chemistry; University of Palermo; V.le delle Scienze pad. 17-90128 Palermo Italy
| | - M. Rita Correro
- Institut für Chemie und Bioanalytik; Hochschule für Life Sciences FHNW; Hofackerstrasse 30-4132 Muttenz Switzerland
| | - Patrick Shahgaldian
- Institut für Chemie und Bioanalytik; Hochschule für Life Sciences FHNW; Hofackerstrasse 30-4132 Muttenz Switzerland
| | - Paolo Lo Meo
- Department STEBICEF; University of Palermo; V.le delle Scienze pad. 17-90128 Palermo Italy
| | - Eugenio Caponetti
- Department STEBICEF; University of Palermo; V.le delle Scienze pad. 17-90128 Palermo Italy
- Centro Grandi Apparecchiature - AteNCenter; University of Palermo; Via F. Marini 14 - 90128 Palermo Italy
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Jacob S, Nair AB. Cyclodextrin complexes: Perspective from drug delivery and formulation. Drug Dev Res 2018; 79:201-217. [PMID: 30188584 DOI: 10.1002/ddr.21452] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/22/2018] [Accepted: 06/22/2018] [Indexed: 02/05/2023]
Abstract
Cyclodextrins (CDs) have been widely investigated as a unique pharmaceutical excipient for past few decades and is still explored for new applications. They are highly versatile oligosaccharides which possess multifunctional characteristics, and are mainly used to improve the physicochemical stability, solubility, dissolution rate, and bioavailability of drugs. Stability constant, factors affecting complexation, techniques to enhance complexation efficiency, the preparation methods for molecular inclusion complexes and release of guest molecules are discussed in brief. In addition, different CD derivatives and their pharmacokinetics are elaborated. Further, the significance of CD complex in aqueous solubility, dissolution and bioavailability, stability, and taste masking is explained. The recent advancement of CDs in developing various drug delivery systems is enlightened. Indeed, the potential of CDs by means of inclusion complex formation have widen the applicability of these materials in various drug delivery systems including ocular, osmotic, mucoadhesive, transdermal, nasal, and targeted delivery systems. Feasibility studies have been performed on the benefit of these cyclic oligomers as nanocarriers, a strategy that can modify the drugs with improved physicochemical properties. Studies also demonstrated the feasibility of CDs to self-assemble in the form of stable nanoaggregates, which may extend the scope of CDs in drug delivery to the continually expanding list of new drug entities.
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Affiliation(s)
- Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | - Anroop B Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
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Li N, Zhang ZJ, Li XJ, Li HZ, Cui LX, He DL. Microcapsules biologically prepared using Perilla frutescens (L.) Britt. essential oil and their use for extension of fruit shelf life. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:1033-1041. [PMID: 28718920 DOI: 10.1002/jsfa.8552] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/10/2017] [Accepted: 07/12/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Perilla essential oil (EO) possesses high antioxidant, antimicrobial and insecticidal activities, and has proven to be more reliable than chemically synthesized food preservatives. Nevertheless, EOs have disadvantages of facile photo-degradation and oxidation, which limit their use in agriculture and food industries. Microencapsulation technology that generates a polymeric coating surrounding EOs could overcome these disadvantages. RESULTS The EO concentration had a significant effect on encapsulation efficiency (EE) and loading capacity (LC). The best encapsulation conditions were obtained with 2% v/v EO, for which EE and LC were 57% and 36%, respectively. EO-loaded microspheres exhibited a crimped surface with phanic lumps by scanning electron microscopy. Thermal stability experiments revealed droplets that began to decompose sharply at 108 °C, with a 61% weight, loss, which was much lower than EOs of 98%. EO-loaded microcapsules demonstrated good antibacterial activity. Strawberry preservation studies showed that EO-loaded microcapsules could significantly inhibit strawberry decay, maintain the quality of strawberries and prolong shelf life. CONCLUSION Perilla EO-loaded microcapsules were successfully prepared by ionic gelation and were effective at inhibiting several bacterial strains. EO-alginate microcapsules could effectively delay the volatilization of EO. Perilla EO-loaded microcapsules therefore have potential for use as an antimicrobial and preservative agent in the food industry. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Na Li
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
| | - Zhi-Jun Zhang
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
| | - Xiao-Jun Li
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
| | - Hui-Zhen Li
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
| | - Li-Xia Cui
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
| | - Dong-Liang He
- School of Chemical Engineering and Environment, North University of China, Taiyuan, China
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Elmowafy M, Samy A, Abdelaziz AE, Shalaby K, Salama A, Raslan MA, Abdelgawad MA. Polymeric nanoparticles based topical gel of poorly soluble drug: Formulation, ex-vivo and in vivo evaluation. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Cinà V, Russo M, Lazzara G, Chillura Martino D, Lo Meo P. Pre- and post-modification of mixed cyclodextrin-calixarene co-polymers: A route towards tunability. Carbohydr Polym 2016; 157:1393-1403. [PMID: 27987848 DOI: 10.1016/j.carbpol.2016.11.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 11/04/2016] [Accepted: 11/04/2016] [Indexed: 11/25/2022]
Abstract
Various pre-modified and post-modified cyclodextrin-calixarene hyper-reticulated co-polymers were synthesized, fully characterized by different techniques (FT-IR, 13C{1H} CP-MAS and LGFS solid-state NMR, thermogravimetry, porosimetry), and tested to assess their absorption abilities as nanosponges. The construction of the polymer network was accomplished exploiting the well-known CuAAC reaction between two different heptakis-6-azido-β-cyclodextrins and two different propargyloxy-calix[4]arenes. Post-modification was aimed to achieve the presence of ionizable (acidic or basic) groups on the polymer framework. Sequestration tests towards two model pollutant molecules surprisingly showed that both pristine and post-modified materials actually possess the abilities to act as pH-tunable nanosponges.
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Affiliation(s)
- Valerio Cinà
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze ed. 17, 90128 Palermo, Italy
| | - Marco Russo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze ed. 17, 90128 Palermo, Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, University of Palermo, Viale delle Scienze ed. 17, 90128 Palermo, Italy
| | - Delia Chillura Martino
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze ed. 17, 90128 Palermo, Italy; ATeNCenter, University of Palermo, Viale delle Scienze ed. 18, 90128 Palermo, Italy
| | - Paolo Lo Meo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze ed. 17, 90128 Palermo, Italy; ATeNCenter, University of Palermo, Viale delle Scienze ed. 18, 90128 Palermo, Italy.
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Masood F, Yasin T, Bukhari H, Mujahid M. Characterization and application of roxithromycin loaded cyclodextrin based nanoparticles for treatment of multidrug resistant bacteria. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:1-7. [PMID: 26838816 DOI: 10.1016/j.msec.2015.11.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/29/2015] [Accepted: 11/30/2015] [Indexed: 10/22/2022]
Abstract
An outbreak of infections with a high mortality rate caused by multidrug resistant (MDR) bacteria is one of the biggest health challenges globally. A class IV drug, roxithromycin (ROX), has poor solubility. In this study, ROX was first encapsulated in the cavity of each of the β-cyclodextrin (βCD) and hydroxypropyl-β-cyclodextrin (HPβCD). Then, each of the resulting βCD-ROX inclusion complex and HPβCD-ROX inclusion complex were separately loaded into poly-(lactic-co-glycolic acid) (PLGA) to synthesize βCD-ROX/PLGA and HPβCD-ROX/PLGA nanoparticles (NPs). Blank and ROX loaded PLGA (ROX-PLGA) NPs were also prepared. The loading efficiency of ROX is comparatively high for HPβCD-ROX/PLGA NPs in comparison to the βCD-ROX/PLGA NPs and ROX-PLGA NPs. All designed formulations showed significant (P<0.0001) antibacterial activity against the selected MDR bacterial strains. In a nutshell, this study demonstrated a great therapeutic potential of the above-mentioned delivery systems for treatment of MDR bacteria.
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Affiliation(s)
- Farha Masood
- Department of Biosciences, COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan.
| | - Tariq Yasin
- Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Habib Bukhari
- Department of Biosciences, COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan
| | - Muhammad Mujahid
- School of Chemicals & Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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Lakkakula JR, Maçedo Krause RW. A vision for cyclodextrin nanoparticles in drug delivery systems and pharmaceutical applications. Nanomedicine (Lond) 2015; 9:877-94. [PMID: 24981652 DOI: 10.2217/nnm.14.41] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Cyclodextrins (CDs) have brought a revolution in the pharmaceutical field over the last decade. Natural and modified CDs (α-CD and β-CD) have been studied and some have gained US FDA approval or achieved 'Generally Regarded as Safe' (GRAS) status. Another characteristic of CDs is the ease with which they can be induced to form supramolecular structures for its use in drug delivery. CDs, grafted or crosslinked with polymers, are now being developed into 'smart' systems for efficient targeted drug delivery, especially for hydrophobic drugs. Amphiphilic CDs have the ability to form nanospheres or nanocapsules via a simple nanoprecipitation technique. This review deals with different types of CDs, and their efficacy, physicochemical properties and transformation into nanoparticles with interesting in vitro and in vivo applications.
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Affiliation(s)
- Jaya Raju Lakkakula
- Department of Applied Chemistry, Center for Nanomaterials Science, University of Johannesburg, Doornfontein 2028, Gauteng, South Africa
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Hydroxypropyl-β-cyclodextrin grafted polyethyleneimine used as transdermal penetration enhancer of diclofenac sodium. Int J Pharm 2014; 474:182-92. [DOI: 10.1016/j.ijpharm.2014.08.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/29/2014] [Accepted: 08/14/2014] [Indexed: 11/23/2022]
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12
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Wang K, Yan Y, Zhao G, Xu W, Dong K, You C, Zhang L, Xing J. In vitro and in vivo application of hydroxypropyl-β-cyclodextrin-grafted polyethyleneimine used as a transdermal penetration enhancer. Polym Chem 2014. [DOI: 10.1039/c4py00286e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang Y, Zhao Y, Han B. Preparation of Tris(2-aminoethyl)amine-Cross-Linked Cyclodextrin-Based Porous Nanospheres and Their Application as Drug Delivery Systems. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Landfester K, Mailänder V. Nanocapsules with specific targeting and release properties using miniemulsion polymerization. Expert Opin Drug Deliv 2013; 10:593-609. [DOI: 10.1517/17425247.2013.772976] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Salústio PJ, Pontes P, Conduto C, Sanches I, Carvalho C, Arrais J, Marques HMC. Advanced technologies for oral controlled release: cyclodextrins for oral controlled release. AAPS PharmSciTech 2011; 12:1276-92. [PMID: 21948320 DOI: 10.1208/s12249-011-9690-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 09/07/2011] [Indexed: 01/01/2023] Open
Abstract
Cyclodextrins (CDs) are used in oral pharmaceutical formulations, by means of inclusion complexes formation, with the following advantages for the drugs: (1) solubility, dissolution rate, stability, and bioavailability enhancement; (2) to modify the drug release site and/or time profile; and (3) to reduce or prevent gastrointestinal side effects and unpleasant smell or taste, to prevent drug-drug or drug-additive interactions, or even to convert oil and liquid drugs into microcrystalline or amorphous powders. A more recent trend focuses on the use of CDs as nanocarriers, a strategy that aims to design versatile delivery systems that can encapsulate drugs with better physicochemical properties for oral delivery. Thus, the aim of this work was to review the applications of the CDs and their hydrophilic derivatives on the solubility enhancement of poorly water-soluble drugs in order to increase their dissolution rate and get immediate release, as well as their ability to control (to prolong or to delay) the release of drugs from solid dosage forms, either as complexes with the hydrophilic (e.g., as osmotic pumps) and/or hydrophobic CDs. New controlled delivery systems based on nanotechnology carriers (nanoparticles and conjugates) have also been reviewed.
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Utilization of hydroxypropyl cellulose for green and efficient synthesis of silver nanoparticles. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.072] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Herrmann C, Crespy D, Landfester K. Synthesis of hydrophilic polyurethane particles in non-aqueous inverse miniemulsions. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2430-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Crespy D, Landfester K. Miniemulsion polymerization as a versatile tool for the synthesis of functionalized polymers. Beilstein J Org Chem 2010; 6:1132-48. [PMID: 21160567 PMCID: PMC3002022 DOI: 10.3762/bjoc.6.130] [Citation(s) in RCA: 149] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 11/10/2010] [Indexed: 12/23/2022] Open
Abstract
The miniemulsion technique is a particular case in the family of heterophase polymerizations, which allows the formation of functionalized polymers by polymerization or modification of polymers in stable nanodroplets. We present here an overview of the different polymer syntheses within the miniemulsion droplets as reported in the literature, and of the current trends in the field.
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Affiliation(s)
- Daniel Crespy
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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