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Chowdhury A, Mitra Mazumder P. Unlocking the potential of flavonoid-infused drug delivery systems for diabetic wound healing with a mechanistic exploration. Inflammopharmacology 2024:10.1007/s10787-024-01561-5. [PMID: 39217278 DOI: 10.1007/s10787-024-01561-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024]
Abstract
Diabetes is one of the common endocrine disorders generally characterized by elevated levels of blood sugar. It can originate either from the inability of the pancreas to synthesize insulin, which is considered as an autoimmune disorder, or the reduced production of insulin, considered as insulin resistivity. A wound can be defined as a condition of damage to living tissues including skin, mucous membrane and other organs as well. Wounds get complicated with respect to time based on specific processes like diabetes mellitus, obesity and immunocompromised conditions. Proper growth and functionality of the epidermis gets sustained due to impaired diabetic wound healing which shows a sign of dysregulated wound healing process. In comparison with synthetic medications, phytochemicals like flavonoids, tannins, alkaloids and glycosides have gained enormous importance relying on their distinct potential to heal diabetic wounds. Flavonoids are one of the most promising and important groups of natural compounds which can be used to treat acute as well as chronic wounds. Flavonoids show excellent properties due to the presence of hydroxyl groups in their chemical structure, which makes this class of compounds different from others. Based on the novel principles of nanotechnology via utilizing suitable drug delivery systems, the delivery of bioactive constituents from plant source amplifies the wound-healing mechanism, minimizes complexities and enhances bioavailability. Hence, the encapsulation and applicability of flavonoids with an emphasis on mechanistic route and wound-healing therapeutics have been highlighted in the subsequent study with focus on multiple drug delivery systems.
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Affiliation(s)
- Ankit Chowdhury
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Papiya Mitra Mazumder
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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2
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Rawat P, Imam SS, Gupta S. Formulation of Cabotegravir Loaded Gold Nanoparticles: Optimization, Characterization to In-Vitro Cytotoxicity Study. J CLUST SCI 2022; 34:893-905. [PMID: 35493274 PMCID: PMC9044393 DOI: 10.1007/s10876-022-02261-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/29/2022] [Indexed: 11/30/2022]
Abstract
The effective and preventive treatment of HIV is one of the difficult challenges worldwide. It requires the development of an effective prophylactic strategy to prevent HIV/AIDS. This study aimed to synthesize Cabotegravir (CAB)-biodegradable gold (Au) nanoparticles by using pectin as a reducer and stabilizer. CAB-GNPs were prepared by the slightly modified Turkevich method. CAB-GNPs were optimized using Box Behnken design for independent variables gold chloride (A), pectin (B) and pH range (C). The effects of independent variables were observed on particle size (Y1) and encapsulation efficiency (Y2). The results of the study revealed that the optimized nanoparticles (GLN7) had a particle size of 3.9 ± 0.1 nm and encapsulation efficiency of 97.2 ± 3.9%. TEM study showed the spherical shape particles. The in-vitro drug release revealed 62.1 ± 0.5% release of CAB in simulated gastric buffer (pH 1.2) and 45.5 ± 2.8% in physiological buffer (pH 7.4). In-vitro cytotoxicity study and antibacterial activity depicted the safety of the prepared NPs by showing lesser toxicity than pure CAB. From the results, our experimental outcomes concluded that CAB gold nanoparticles composed of pectin may constitute a preferred embodiment for the delivery of CAB.
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Affiliation(s)
- Purnima Rawat
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Madhya Pradesh, Indore, 453552 India
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Sharad Gupta
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Madhya Pradesh, Indore, 453552 India
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3
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Hu M, Peng X, Yue L, Ding H, Yu X, Wan C, Cheng C, Yu X. A Well-Designed Two-Fold Crosslinked Biological Valve Leaflets with Heparin-Loaded Hydrogel Coating for Enhancing Anticoagulation, Endothelialization, and Anticalcification. Biomater Sci 2022; 10:5535-5551. [DOI: 10.1039/d2bm00736c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Commercial biological valve leaflets (BVLs) crosslinked with Glutaraldehyde (GA) are at risk of accelerating damage and even failure, owing to high cell toxicity of GA, acute thrombosis, and calcification in...
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Statistical optimization of nanostructured gels for enhancement of vinpocetine transnasal and transdermal permeation. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Elkordy AA, Haj-Ahmad RR, Awaad AS, Zaki RM. An overview on natural product drug formulations from conventional medicines to nanomedicines: Past, present and future. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Huang X, Deng Q, Wang X, Deng H, Zhang T, Liao H, Jiang J. High-efficient removal of U(VI) from aqueous solution by self-assembly pomelo peel/palygorskite composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:17290-17305. [PMID: 33394438 DOI: 10.1007/s11356-020-12162-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
The efficient separation of low-concentration radionuclides by the eco-friendly adsorbent is a compelling requirement in the development of nuclear industry. Hence, a novel composite consisted of one-dimensional palygorskite (Pal) and three-dimensional pomelo peel (PP) is prepared by self-assembly approach (PP/Pal) and coupling agent approach (PP/KPal) for removing uranium (U(VI)) from aqueous solution. Moreover, the mass ratio (PP/Pal), adsorbent dosage, pH, contact time, temperature, and ionic strength are investigated. Two adsorption kinetic models and isotherm models are used to investigate the kinetic behaviors and adsorption capacity, respectively. The maximum adsorption capacities were 370.5 mg·g-1 on PP/Pal and 357.3 mg·g-1 on PP/KPal at pH 6.0, contact time 150 min and 25 °C. Meanwhile, the composite can be easily separated from water via a simple filtering. Furthermore, thermodynamic parameters indicate that adsorption is an endothermic and spontaneous process. And the surface complexation, ion exchange, and electrostatic attraction play a vital role. This work shows that the PP/Pal composite with high efficiency, low cost, and green has a further application in the treatment of wastewater containing U(VI).
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Affiliation(s)
- Xiaofeng Huang
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China
| | - Qiulin Deng
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China.
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, People's Republic of China.
| | - Xingzhang Wang
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China
| | - Hongquan Deng
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China.
| | - Tinghong Zhang
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China
| | - Huiwei Liao
- School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, People's Republic of China
| | - Jinlong Jiang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, People's Republic of China.
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Maćczak P, Kaczmarek H, Ziegler-Borowska M. Recent Achievements in Polymer Bio-Based Flocculants for Water Treatment. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3951. [PMID: 32906667 PMCID: PMC7559979 DOI: 10.3390/ma13183951] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 08/30/2020] [Accepted: 09/04/2020] [Indexed: 01/04/2023]
Abstract
Polymer flocculants are used to promote solid-liquid separation processes in potable water and wastewater treatment. Recently, bio-based flocculants have received a lot of attention due to their superior advantages over conventional synthetic polymers or inorganic agents. Among natural polymers, polysaccharides show many benefits such as biodegradability, non-toxicity, ability to undergo different chemical modifications, and wide accessibility from renewable sources. The following article provides an overview of bio-based flocculants and their potential application in water treatment, which may be an indication to look for safer alternatives compared to synthetic polymers. Based on the recent literature, a new approach in searching for biopolymer flocculants sources, flocculation mechanisms, test methods, and factors affecting this process are presented. Particular attention is paid to flocculants based on starch, cellulose, chitosan, and their derivatives because they are low-cost and ecological materials, accepted in industrial practice. New trends in water treatment technology, including biosynthetic polymers, nanobioflocculants, and stimulant-responsive flocculants are also considered.
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Affiliation(s)
- Piotr Maćczak
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.M.); (M.Z.-B.)
- Water Supply and Sewage Enterprise LLC, Przemysłowa 4, 99-300 Kutno, Poland
| | - Halina Kaczmarek
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.M.); (M.Z.-B.)
| | - Marta Ziegler-Borowska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.M.); (M.Z.-B.)
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Elsayed I, El-Dahmy RM, El-Emam SZ, Elshafeey AH, El Gawad NAA, El-Gazayerly ON. Response surface optimization of biocompatible elastic nanovesicles loaded with rosuvastatin calcium: enhanced bioavailability and anticancer efficacy. Drug Deliv Transl Res 2020; 10:1459-1475. [PMID: 32394333 DOI: 10.1007/s13346-020-00761-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Statins are mainly used for the treatment of hyperlipidemia, but recently, their anticancer role was extremely investigated. The goal of this study was to statistically optimize novel elastic nanovesicles containing rosuvastatin calcium to improve its transdermal permeability, bioavailability, and anticancer effect. The elastic nanovesicles were composed of Tween® 80, cetyl alcohol, and clove oil. The nanodispersions were investigated for their entrapment efficiency, particle size, zeta potential, polydispersity index, and elasticity. The optimized elastic nanovesicular dispersion is composed of 20% cetyl alcohol, 53.47% Tween 80, and 26.53% clove oil. Carboxy methylcellulose was utilized to convert the optimized elastic nanovesicular dispersion into elastic nanovesicular gels. Both the optimized dispersion and the optimized gel (containing 2% w/v carboxymethylcellulose) were subjected to in vitro release study, scanning and transmission electron microscopy, histopathological evaluation, and ex vivo permeation. The cell viability assay of the optimized gel on MCF-7 and Hela cell lines showed significant antiproliferative and potent cytotoxic effects when compared to the drug gel. Moreover, the optimized gel accomplished a significant increase in rosuvastatin bioavailability upon comparison with the drug gel. The optimized gel could be considered as a promising nanocarrier for statins transdermal delivery to increase their systemic bioavailability and anticancer effect. Graphical abstract.
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Han H, Song KB. Antioxidant activities of mandarin (
Citrus unshiu
) peel pectin films containing sage (
Salvia officinalis
) leaf extract. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14581] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hee‐Seon Han
- Department of Food Science and Technology Chungnam National University Daejeon 34134 Korea
| | - Kyung Bin Song
- Department of Food Science and Technology Chungnam National University Daejeon 34134 Korea
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Graft-copolymer of polyacrylamide-tamarind seed gum: Synthesis, characterization and evaluation of flocculating potential in peroral paracetamol suspension. Carbohydr Polym 2019; 215:213-225. [DOI: 10.1016/j.carbpol.2019.03.088] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/14/2019] [Accepted: 03/25/2019] [Indexed: 11/23/2022]
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11
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Wandee Y, Uttapap D, Mischnick P. Yield and structural composition of pomelo peel pectins extracted under acidic and alkaline conditions. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.08.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Naji-Tabasi S, Emadzadeh B, Kadkhodaee R. Effects of pectin and xanthan gum on induced-flocculation phenomenon in an acidic model emulsion system. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1467778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Sara Naji-Tabasi
- Department of Food Nanotechnology, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
| | - Bahareh Emadzadeh
- Department of Food Nanotechnology, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
| | - Rassoul Kadkhodaee
- Department of Food Nanotechnology, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
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El-Enin HA, AL-Shanbari AH. Nanostructured liquid crystalline formulation as a remarkable new drug delivery system of anti-epileptic drugs for treating children patients. Saudi Pharm J 2018; 26:790-800. [PMID: 30202219 PMCID: PMC6128721 DOI: 10.1016/j.jsps.2018.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/02/2018] [Indexed: 11/17/2022] Open
Abstract
PURPOSE Development of a new dosage-form of antiepileptic-drugs appropriated for children. METHODS Clonazepam (Cl) was formulated as cubosomal-gel (cub-gel) to be used as a patch reservoir through transdermal-route. Cubosomes prepared using glycerol-mono-oleate(GMO)/Pluronic-F127(PF127) mixture. An actual-statistical design was used to investigate the effect of different stabilizing agents (Ethanol and PVA) and surfactant concentration on cubosomes' particle size and entrapping-efficiency. The selected formulae were evaluated by testing particle-morphology, in vitro drug release and stability. Cub-gel was prepared using selected cubosome formulae. The optimal cub-gel subjected to in vitro dissolution, ex-vivo permeation and skin deposition studies followed by studying its pharmacological effect. RESULTS Using PVA or Et as stabilizers with PF127 significantly decreases the average cubosomes'PS (352 ± 2.8 and 264 ± 2.16 nm) and increases EE (58.97 ± 4.57% and 54.21 ± 3.89%). Cubosomes increase the initial release rate of Cl to ensure rapid therapeutic effect (37.39% and 46.04% in the first hour) followed by a prolonged release till 4 h. Cub-gel containing PVA showed significantly higher Cl-transdermal permeation when compared to Cl-suspension. Moreover, increases the retention-time (89.57% at 48 h) and skin-deposition up to 6-times. It also reduces the epileptic seizures and alters the behavioral parameters induced by pilocarpine. CONCLUSIONS Cubosomal-gel could be considered an innovative dosage-form for Cl through the transdermal route.
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Key Words
- Antiepileptic
- CNS, Central Nervous System
- Cl, Clonazepam
- Clonazepam
- Cubogels
- Cubosomes
- Cubs, cubosomes
- EE, entrapping efficiency
- Epilepsy
- Et, ethanol
- GMO, glycerol-mono-oleate
- I.P, Intraperitoneal injections
- PBS, phosphate buffer saline
- PCS, peripheral cholinergic signs
- PDI, polydispersity index
- PF127, Poloxamer 407
- PS, particle size
- PVA, polyvinyl alcohol
- SMS, stereotyped movements signs
- TDDS, Transdermal Drug Delivery System
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Affiliation(s)
- Hadel Abo El-Enin
- Pharmaceutics Department, National Organization of Drug Control and Research (NODCAR), Giza, Egypt
- Pharmaceutics Department, Faculty of Pharmacy, Taif University, Taif, Saudi Arabia
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14
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Kebaili M, Djellali S, Radjai M, Drouiche N, Lounici H. Valorization of orange industry residues to form a natural coagulant and adsorbent. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.03.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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15
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Mittal H, Kumar V, Alhassan SM, Ray SS. Modification of gum ghatti via grafting with acrylamide and analysis of its flocculation, adsorption, and biodegradation properties. Int J Biol Macromol 2018; 114:283-294. [DOI: 10.1016/j.ijbiomac.2018.03.131] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 02/25/2018] [Accepted: 03/21/2018] [Indexed: 11/30/2022]
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Salehizadeh H, Yan N, Farnood R. Recent advances in polysaccharide bio-based flocculants. Biotechnol Adv 2017; 36:92-119. [PMID: 28993221 DOI: 10.1016/j.biotechadv.2017.10.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 09/09/2017] [Accepted: 10/05/2017] [Indexed: 01/03/2023]
Abstract
Natural polysaccharides, derived from biomass feedstocks, marine resources, and microorganisms, have been attracting considerable attention as benign and environmentally friendly substitutes for synthetic polymeric products. Besides many other applications, these biopolymers are rapidly emerging as viable alternatives to harmful synthetic flocculating agents for the removal of contaminants from water and wastewater. In recent years, a great deal of effort has been devoted to improve the production and performance of polysaccharide bio-based flocculants. In this review, current trends in preparation and chemical modification of polysaccharide bio-based flocculants and their flocculation performance are discussed. Aspects including mechanisms of flocculation, biosynthesis, classification, purification and characterization, chemical modification, the effect of physicochemical factors on flocculating activity, and recent applications of polysaccharide bio-based flocculants are summarized and presented.
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Affiliation(s)
- Hossein Salehizadeh
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario M5S 3E5, Canada.
| | - Ning Yan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario M5S 3E5, Canada; Faculty of Forestry, University of Toronto, 33 Willcocks St., Toronto, Ontario M5S 3B3, Canada.
| | - Ramin Farnood
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario M5S 3E5, Canada.
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M’hiri N, Ioannou I, Ghoul M, Mihoubi Boudhrioua N. Phytochemical characteristics of citrus peel and effect of conventional and nonconventional processing on phenolic compounds: A review. FOOD REVIEWS INTERNATIONAL 2016. [DOI: 10.1080/87559129.2016.1196489] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- N. M’hiri
- ISBST-RU Ecophysiology and AgroFood Processing, Manouba University, Tunis, Tunisia
| | - I. Ioannou
- ENSAIA- Laboratory Reactions and Process Engineering, Lorraine University, Vandoeuvre lés Nancy, France
| | - M. Ghoul
- ENSAIA- Laboratory Reactions and Process Engineering, Lorraine University, Vandoeuvre lés Nancy, France
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Burapapadh K, Takeuchi H, Sriamornsak P. Development of pectin nanoparticles through mechanical homogenization for dissolution enhancement of itraconazole. Asian J Pharm Sci 2016. [DOI: 10.1016/j.ajps.2015.07.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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19
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Novel use of superdisintegrants as viscosity enhancing agents in biocompatible polymer films containing griseofulvin nanoparticles. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.06.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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20
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Gum ghatti and poly(acrylamide-co-acrylic acid) based biodegradable hydrogel-evaluation of the flocculation and adsorption properties. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.06.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Abdelrahman FE, Elsayed I, Gad MK, Badr A, Mohamed MI. Investigating the cubosomal ability for transnasal brain targeting: In vitro optimization, ex vivo permeation and in vivo biodistribution. Int J Pharm 2015; 490:281-91. [PMID: 26026251 DOI: 10.1016/j.ijpharm.2015.05.064] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/24/2015] [Accepted: 05/25/2015] [Indexed: 01/19/2023]
Abstract
The aim of this study was to enhance the risperidone delivery to the brain through the transnasal route via optimization of cubosomal gel. Cubosomes were prepared using glycerol mono-oleate (GMO), Pluronic F127 (PF127) and Tween 80 (T80). The prepared formulae were characterized by testing their particle size, polydispersity index, zeta potential, entrapment efficiency, in vitro drug release and transmission electron microscopy. Central composite design was planned for the formulae optimization and the selected formula (containing PF127 with concentration 15 mg/g GMO and T80 with concentration of 20mg/L) was re-prepared in presence of gelling polymer (gellan gum or polyox). The optimal cubosomal gel (containing 0.4% w/v polyox) had been subjected to ex-vivo permeation, histopathological evaluation and in vivo biodistribution studies. It showed significantly higher transnasal permeation and better distribution to the brain, when compared to the used control (drug solution and/or suspension). Finally, the cubosomal gel could be considered as a promising carrier for brain targeting of CNS acting drugs through the transnasal route.
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Affiliation(s)
| | - Ibrahim Elsayed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates.
| | - Mary Kamal Gad
- National Organization for Drug Control and Research (NODCAR), Cairo, Egypt
| | - Ahmed Badr
- Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Magdi Ibrahim Mohamed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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23
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Gamonpilas C, Krongsin J, Methacanon P, Goh SM. Gelation of pomelo (Citrus maxima) pectin as induced by divalent ions or acidification. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.11.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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25
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26
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Flocculation by cationic amphiphilic polyelectrolyte: Relating efficiency with the association of polyelectrolyte in the initial solution. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.09.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ghimici L, Constantin M. Novel thermosensitive flocculanting agent based on pullulan. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:1009-1016. [PMID: 21703758 DOI: 10.1016/j.jhazmat.2011.06.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 06/02/2011] [Accepted: 06/02/2011] [Indexed: 05/31/2023]
Abstract
New thermosensitive polysaccharide (P-g-pNIPAAm) was synthesized by graft-polymerization of p(N-isopropylacrylamide) (pNIPAAm) onto pullulan (P) using Ce(IV) ion as initiator. The grafted polysaccharide was characterized by FT-IR and (1)H NMR spectroscopy and elemental analysis. Its flocculation efficiency was studied in a clay suspension, in comparison with p(NIPAAm) homopolymer, as a function of the polymer dose, temperature and settling time. The thermosensitive polysaccharide could induce clay particle flocculation both below and above the lower critical solution temperature (LCST), but the process was more effective above the LCST. A lower value of the residual turbidity at the optimum polymer dose and a wider flocculation window were recorded at temperature above the LCST. The floc size distribution and surface morphology revealed bigger size flocs when the flocculation was performed above the LCST. The re-dispersion effect was negligible for the flocs obtained in the presence of P-g-pNIPAAm.
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Affiliation(s)
- Luminita Ghimici
- Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda, 41A, 700487 Iasi, Romania.
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