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Anne JM, Boon YH, Saad B, Miskam M, Yusoff MM, Shahriman MS, Zain NNM, Lim V, Raoov M. β-Cyclodextrin conjugated bifunctional isocyanate linker polymer for enhanced removal of 2,4-dinitrophenol from environmental waters. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180942. [PMID: 30225083 PMCID: PMC6124096 DOI: 10.1098/rsos.180942] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/18/2018] [Indexed: 05/17/2023]
Abstract
In this work, we reported the synthesis, characterization and adsorption study of two β-cyclodextrin (βCD) cross-linked polymers using aromatic linker 2,4-toluene diisocyanate (2,4-TDI) and aliphatic linker 1,6-hexamethylene diisocyanate (1,6-HDI) to form insoluble βCD-TDI and βCD-HDI. The adsorption of 2,4-dinitrophenol (DNP) on both polymers as an adsorbent was studied in batch adsorption experiments. Both polymers were well characterized using various tools that include Fourier transform infrared spectroscopy, thermogravimetric analysis, Brunauer-Emmett-Teller analysis and scanning electron microscopy, and the results obtained were compared with the native βCD. The adsorption isotherm of 2,4-DNP onto polymers was studied. It showed that the Freundlich isotherm is a better fit for βCD-TDI, while the Langmuir isotherm is a better fit for βCD-HMDI. The pseudo-second-order kinetic model represented the adsorption process for both of the polymers. The thermodynamic study showed that βCD-TDI polymer was more favourable towards 2,4-DNP when compared with βCD-HDI polymer. Under optimized conditions, both βCD polymers were successfully applied on various environmental water samples for the removal of 2,4-DNP. βCD-TDI polymer showed enhanced sorption capacity and higher removal efficiency (greater than 80%) than βCD-HDI (greater than 70%) towards 2,4-DNP. The mechanism involved was discussed, and the effects of cross-linkers on βCD open up new perspectives for the removal of toxic contaminants from a body of water.
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Affiliation(s)
- J. M. Anne
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Y. H. Boon
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Pulau Pinang, Malaysia
| | - B. Saad
- Department of Fundamental and Applied Sciences, Faculty of Science and Information Technology, Universiti Teknologi Petronas, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - M. Miskam
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - M. M. Yusoff
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Pulau Pinang, Malaysia
| | - M. S. Shahriman
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Pulau Pinang, Malaysia
| | - N. N. M. Zain
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Pulau Pinang, Malaysia
| | - V. Lim
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Pulau Pinang, Malaysia
| | - M. Raoov
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
- Universiti Malaya Centre for Ionic Liquids (UMCIL), Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
- Author for correspondence: M. Raoov e-mail:
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Seema K, Mamba B, Njuguna J, Bakhtizin R, Mishra A. Removal of lead (II) from aqeouos waste using (CD-PCL-TiO2) bio-nanocomposites. Int J Biol Macromol 2018; 109:136-142. [DOI: 10.1016/j.ijbiomac.2017.12.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/21/2017] [Accepted: 12/06/2017] [Indexed: 10/18/2022]
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Zhang L, Liu M, Lu C, Ren D, Fan G, Liu C, Liu M, Shu G, Peng G, Yuan Z, Zhong Z, Zhang W, Fu H. The hydroxypropyl-β-cyclodextrin complexation of toltrazuril for enhancing bioavailability. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:583-589. [PMID: 29593381 PMCID: PMC5865576 DOI: 10.2147/dddt.s157611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Introduction Toltrazuril (Tol) is used to prevent and combat coccidiosis. However, its low aqueous solubility and poor oral bioavailability limit clinical application. Methods To overcome the shortcomings, toltrazuril–hydroxypropyl–β-cyclodextrin inclusion complex (Tol-HP-β-CD) was prepared and characterized. The comparative plasma disposition kinetics of Tol was analyzed after a single orally administered dose of 10 mg/kg Tol or Tol-HP-β-CD in rabbits. Solution-stirring method was selected to prepare the inclusion complex. Complex formation was characterized by thin-layer chromatography, Fourier transform infrared spectrophotometry, and 1H nuclear magnetic resonance spectroscopy. In plasma profile, plasma samples were collected between 1 and 10 days following administration. Plasma Tol concentrations were determined by high-performance liquid chromatography. Results In rabbit plasma, the time to peak concentration (Tmax) of Tol-HP-β-CD was shorter than that of Tol (12 h vs 24 h). Cmax (19.92±1.02 μg/mL) and area under the concentration–time curve (AUC0-∞, 1,176.86±70.26 mg/L h) of the Tol-HP-β-CD group significantly increased (p,0.01) than those of the Tol group (Cmax, 8.02±1.04 μg/mL; AUC0-∞, 514.03±66.65 mg/L h). Conclusion It can be concluded that the Tol-HP-β-CD increased the aqueous solubility and enhanced the oral bioavailability in rabbits. Complexation with HP-β-CD is a feasible way to prepare a rapidly absorbed and more bioavailable Tol oral product.
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Affiliation(s)
- Li Zhang
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Institute of Traditional Chinese Medicine Pharmacology and Toxicology, Sichuan Academy of Chinese Medicine Sciences, Chengdu, Sichuan, China
| | - Mengxi Liu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Chaocheng Lu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Dandan Ren
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Guoqing Fan
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Chang Liu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mengjiao Liu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Gang Shu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Guangneng Peng
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Zhixiang Yuan
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Zhijun Zhong
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Wei Zhang
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Hualin Fu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
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Self-assembled supramolecular hydrogels formed by biodegradable PLA/CS diblock copolymers and β-cyclodextrin for controlled dual drug delivery. Int J Biol Macromol 2018; 108:18-23. [DOI: 10.1016/j.ijbiomac.2017.11.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/10/2017] [Accepted: 11/16/2017] [Indexed: 01/31/2023]
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Morin-Crini N, Winterton P, Fourmentin S, Wilson LD, Fenyvesi É, Crini G. Water-insoluble β-cyclodextrin–epichlorohydrin polymers for removal of pollutants from aqueous solutions by sorption processes using batch studies: A review of inclusion mechanisms. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.07.004] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dos Santos Ramos MA, Da Silva PB, Spósito L, De Toledo LG, Bonifácio BV, Rodero CF, Dos Santos KC, Chorilli M, Bauab TM. Nanotechnology-based drug delivery systems for control of microbial biofilms: a review. Int J Nanomedicine 2018; 13:1179-1213. [PMID: 29520143 PMCID: PMC5834171 DOI: 10.2147/ijn.s146195] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Since the dawn of civilization, it has been understood that pathogenic microorganisms cause infectious conditions in humans, which at times, may prove fatal. Among the different virulent properties of microorganisms is their ability to form biofilms, which has been directly related to the development of chronic infections with increased disease severity. A problem in the elimination of such complex structures (biofilms) is resistance to the drugs that are currently used in clinical practice, and therefore, it becomes imperative to search for new compounds that have anti-biofilm activity. In this context, nanotechnology provides secure platforms for targeted delivery of drugs to treat numerous microbial infections that are caused by biofilms. Among the many applications of such nanotechnology-based drug delivery systems is their ability to enhance the bioactive potential of therapeutic agents. The present study reports the use of important nanoparticles, such as liposomes, microemulsions, cyclodextrins, solid lipid nanoparticles, polymeric nanoparticles, and metallic nanoparticles, in controlling microbial biofilms by targeted drug delivery. Such utilization of these nanosystems has led to a better understanding of their applications and their role in combating biofilms.
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Affiliation(s)
- Matheus Aparecido Dos Santos Ramos
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Patrícia Bento Da Silva
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Drugs and Medicines. Araraquara, SP, Brazil
| | - Larissa Spósito
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Luciani Gaspar De Toledo
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Bruna Vidal Bonifácio
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Camila Fernanda Rodero
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Drugs and Medicines. Araraquara, SP, Brazil
| | - Karen Cristina Dos Santos
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Drugs and Medicines. Araraquara, SP, Brazil
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Drugs and Medicines. Araraquara, SP, Brazil
| | - Taís Maria Bauab
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, Department of Biological Sciences, Araraquara, SP, Brazil
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Cyclodextrin polymers as nanocarriers for sorafenib. Invest New Drugs 2017; 36:370-379. [PMID: 29116478 DOI: 10.1007/s10637-017-0538-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/31/2017] [Indexed: 01/15/2023]
Abstract
Polymeric nanoparticles based on cyclodextrins are currently undergoing clinical trials as new promising nanotherapeutics. In light of this interest, we investigated cyclodextrin cross-linked polymers with different lengths as carriers for the poorly water-soluble drug sorafenib. Both polymers significantly enhanced sorafenib solubility, with shorter polymers showing the most effective solubilizing effect. Inclusion complexes between sorafenib and the investigated polymers exhibited an antiproliferative effect in tumor cells similar to that of free sorafenib. Polymer/Sorafenib complexes also showed lower in vivo tissue toxicity than with free sorafenib in all organs. Our results suggest that the inclusion of sorafenib in polymers represents a successful strategy for a new formulation of this drug.
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Oliveri V, Bellia F, Viale M, Maric I, Vecchio G. Linear polymers of β and γ cyclodextrins with a polyglutamic acid backbone as carriers for doxorubicin. Carbohydr Polym 2017; 177:355-360. [PMID: 28962779 DOI: 10.1016/j.carbpol.2017.08.103] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/03/2017] [Accepted: 08/20/2017] [Indexed: 11/25/2022]
Abstract
Cyclodextrins have been used to encapsulate drugs improving their stability and efficiently regulating their release. Polymeric nanoparticles containing cyclodextrins are currently undergoing clinical trials as nanotherapeutics. In this context, we have synthesized new linear polymers based on polyglutamic acid with pendant β- or γ-cyclodextrins, using a high yield reaction route. The new polymers with an average number of about 17 cyclodextrin cavities were characterized (NMR, MALDI-MS, DLS) and tested as carriers of doxorubicin in human tumor cells. They can include doxorubicin, and the inclusion complexes show antiproliferative activity in human tumor cells.
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Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Francesco Bellia
- Istituto di Biostrutture e Bioimmagini, CNR, Via P. Gaifami 18, 95126 Catania, Italy
| | - Maurizio Viale
- Ospedale Policlinico San Martino, U.O.C. Bioterapie, L.go R. Benzi 10, 16132 Genova, Italy
| | - Irena Maric
- Ospedale Policlinico San Martino, U.O.C. Bioterapie, L.go R. Benzi 10, 16132 Genova, Italy
| | - Graziella Vecchio
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
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Rao MRP, Shirsath C. Enhancement of Bioavailability of Non-nucleoside Reverse Transciptase Inhibitor Using Nanosponges. AAPS PharmSciTech 2017; 18:1728-1738. [PMID: 27757921 DOI: 10.1208/s12249-016-0636-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/16/2016] [Indexed: 11/30/2022] Open
Abstract
Efavirenz is a non-nucleoside reverse transcriptase inhibitor which is chronically prescribed for HIV patients. However, it exhibits solubility-limited bioavailability. Aim of this work was to enhance the solubility and dissolution of the Biopharmaceutical Classification System (BCS) class II drug efavirenz, using beta-cyclodextrin-based nanosponges. Nanosponges have high drug loading capacity and are effective for solubility enhancement. Beta-cyclodextrin was crosslinked with carbonates in different ratios to prepare nanosponges. The nanosponges were loaded with efavirenz by solvent evaporation method and the nanosponge with higher drug loading capacity was selected for further studies. Binary and ternary complexes with EFA, NS, and PVP K30 were prepared and characterized by phase solubility, solution state interaction, saturation solubility, in vitro dissolution, and in vivo pharmacokinetics. Spectral analysis by Fourier transform infrared spectroscopy, powder X-ray diffraction, differential scanning calorimetry, and field emission scanning electron microscopy was performed. Results obtained from spectral characterization confirmed inclusion complexation. Stability constant for ternary complex was found to be 1997 lit/mole, which indicates stable complex formation. The saturation solubility was found to be 17-fold higher with ternary complex in distilled water and about 4-fold in simulated gastric fluid. In vitro dissolution was improved 3 folds with ternary complex. Ternary nanosponge complexes were found to have 2-fold increase in oral bioavailability of efavirenz as compared to plain drug.
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Raeisi A, Faghihi K, Shabanian M. Designed biocompatible nano-inhibitor based on poly(β-cyclodextrin-ester) for reduction of the DEHP migration from plasticized PVC. Carbohydr Polym 2017; 174:858-868. [PMID: 28821141 DOI: 10.1016/j.carbpol.2017.06.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/29/2017] [Accepted: 06/27/2017] [Indexed: 10/19/2022]
Abstract
The easy migration of di(2-ethylhexyl) phthalate (DEHP) from the plasticized PVC (P-PVC) poses a serious threat to human health and the ecosystems. Thus, its control migration from the P-PVC products is very important. In this work, a poly(β-cyclodextrin-ester) network (β-CDP) was synthesized via reaction of β-cyclodextrin with 3,3',4,4'-benzophenone tetracarboxylic dianhydride. As a potential inhibitor for reduction of the DEHP migration, the β-CDP was grafted to Fe3O4 nanoparticles. Poly(β-cyclodextrin-ester) functionalized Fe3O4 nanoparticles (MNP-CDP) has been used in PVC/DEHP system as a reactive nano-inhibitor to reduce DEHP migration. Thermal stability and mechanical properties of obtained films were investigated. DEHP migration tests of the P-PVC films were also carried out by using Gas chromatography. It was found that by incorporating the small amounts of nano-inhibitor in PVC/DEHP system, the migration of DEHP effectively reduced from the P-PVC samples about 65% without any serious changes in mechanical and thermal properties of the P-PVC films.
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Affiliation(s)
- Ahmad Raeisi
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, 38156-8-8349, Arak, Iran; Institute of Nanosciences and Nanotechnology, Arak University, Arak, Iran
| | - Khalil Faghihi
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, 38156-8-8349, Arak, Iran; Institute of Nanosciences and Nanotechnology, Arak University, Arak, Iran.
| | - Meisam Shabanian
- Faculty of Chemistry and Petrochemical Engineering, Standard Research Institute (SRI), Karaj, P.O. Box 31745-139, Iran
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Basak S, Mondal S, Dey S, Bhattacharya P, Saha A, Deep Punetha V, Abbas A, Gopal Sahoo N. Fabrication of β-cyclodextrin-mediated single bimolecular inclusion complex: characterization, molecular docking, in-vitro release and bioavailability studies for gefitinib and simvastatin conjugate. J Pharm Pharmacol 2017. [DOI: 10.1111/jphp.12769] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
Objectives
Introduction of multiple molecules in a single inclusion complex, albeit cheaper, lacks conclusive attempts in earlier drug delivery reports. This manuscript emphasizes simultaneous incorporation of two anticancer drugs, gefitinib (G) and simvastatin (S), in a single molecule of β-cyclodextrin for the first time to achieve effective drug delivery.
Methods
The inclusion complex (GSBCD) was prepared by cosolvent evaporation technique using β-cyclodextrin (BCD) as carrier. Characterization of GSBDC was performed by Fourier transform infrared spectroscopy, COSY, differential scanning calorimetry, X-ray diffraction and dynamic light scattering analyses, which were ascribed to the complex formation inside BCD cavity, micronization of drugs and conversion to amorphous state.
Key findings
The complex revealed entrapment of G and S in 3 ± 0.48: 2 ± 0.19 molar ratio and showed more than 3.5 and 10 fold increase in drug release in in vitro and in vivo, respectively. Docking and COSY studies revealed molecular alignment into BCD central cavity that been achieved via hydrogen bonding between certain groups of the ligands (G and S) and the polar heads of BCD. Partial incorporation of the molecular backbone inside inclusion complex suggests superficial contact with the solvent indicating slow steady release kinetics.
Conclusions
This approach of forming inclusion complex with multiple molecules within a single cavity can be a landmark for further studies in drug delivery.
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Affiliation(s)
- Souvik Basak
- Dr. B.C. Roy College of Pharmacy & Allied Health Sciences, Durgapur, India
| | - Sandip Mondal
- Dr. B.C. Roy College of Pharmacy & Allied Health Sciences, Durgapur, India
| | - Suddhasattya Dey
- Dr. B.C. Roy College of Pharmacy & Allied Health Sciences, Durgapur, India
| | | | - Achintya Saha
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Vinay Deep Punetha
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttrakhand, India
| | - Ali Abbas
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, Australia
| | - Nanda Gopal Sahoo
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttrakhand, India
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Viale M, Giglio V, Monticone M, Maric I, Lentini G, Rocco M, Vecchio G. New doxorubicin nanocarriers based on cyclodextrins. Invest New Drugs 2017; 35:539-544. [PMID: 28378257 DOI: 10.1007/s10637-017-0461-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/22/2017] [Indexed: 11/27/2022]
Abstract
Polymeric nanoparticles and fibrin gels (FBGs) are attractive biomaterials for local delivery of a variety of biotherapeutic agents, from drugs to proteins. We combined these different drug delivery approaches by preparing nanoparticle-loaded FBGs characterized by their intrinsic features of drug delivery rate and antiproliferative/apoptotic activities. Inclusion complexes of doxorubicin (DOXO) with oligomeric β-cyclodextrins (oCyD) functionalized with different functional groups were studied. These nanocarriers were able to interact with FBGs as shown by a decreased release rate of DOXO. One of these complexes, oCyDNH2/DOXO, demonstrated good antiproliferative and apoptotic activity in vitro, reflecting a higher drug uptake by cells. As hypothesized, the nanocarrier/FBG complexes showed a lower drug release rate than similar FBGs loaded with the corresponding non-functionalized oCyD/DOXO. Taken together, our results provide experimental evidence that oCyDNH2/DOXO complexes may be useful components in enhanced FBGs and further build support for the great promise these complex molecules hold for clinical use in localized anticancer therapy of inoperable or surgically removable tumors of different histological origin.
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Affiliation(s)
- Maurizio Viale
- IRCCS A.O.U. San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, U.O.C. Bioterapie, L.go R. Benzi 10, 16132, Genoa, Italy.
| | - Valentina Giglio
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Massimiliano Monticone
- IRCCS A.O.U. San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, U.O.C. Bioterapie, L.go R. Benzi 10, 16132, Genoa, Italy
| | - Irena Maric
- IRCCS A.O.U. San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, U.O.C. Bioterapie, L.go R. Benzi 10, 16132, Genoa, Italy
| | - Giovanni Lentini
- Dipartimento di Farmacia - Scienze del Farmaco, Università degli Studi di Bari 'Aldo Moro', Via E. Orabona 4, 70126, Bari, Italy
| | - Mattia Rocco
- IRCCS A.O.U. San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, U.O.S. Biopolimeri e Proteomica, L.go R. Benzi 10, 16132, Genoa, Italy
| | - Graziella Vecchio
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy
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Oliveri V, Bellia F, Vecchio G. Cyclodextrin Nanoparticles Bearing 8-Hydroxyquinoline Ligands as Multifunctional Biomaterials. Chemistry 2017; 23:4442-4449. [DOI: 10.1002/chem.201700031] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze Chimiche; Università di Catania; Viale A. Doria 6 95125 Catania Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici; C.I.R.C.M.S.B, Unit of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Francesco Bellia
- Istituto di Biostrutture e Bioimmagini; CNR; Via P. Gaifami 18 95126 Catania Italy
| | - Graziella Vecchio
- Dipartimento di Scienze Chimiche; Università di Catania; Viale A. Doria 6 95125 Catania Italy
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Cross-linked β-cyclodextrin and carboxymethyl cellulose hydrogels for controlled drug delivery of acyclovir. PLoS One 2017; 12:e0172727. [PMID: 28245257 PMCID: PMC5330485 DOI: 10.1371/journal.pone.0172727] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 02/08/2017] [Indexed: 11/26/2022] Open
Abstract
To explore the potential role of polymers in the development of drug-delivery systems, this study investigated the use of β-cyclodextrin (β-CD), carboxymethyl cellulose (CMC), acrylic acid (AA) and N’ N’-methylenebis-acrylamide (MBA) in the synthesis of hydrogels for controlled drug delivery of acyclovir (ACV). Different proportions of β-CD, CMC, AA and MBA were blended with each other to fabricate hydrogels via free radical polymerization technique. Fourier transform infrared spectroscopy (FTIR) revealed successful grafting of components into the polymeric network. Thermal and morphological characterization confirmed the formation of thermodynamically stable hydrogels having porous structure. The pH-responsive behaviour of hydrogels has been documented by swelling dynamics and drug release behaviour in simulated gastrointestinal fluids. Drug release kinetics revealed controlled release behaviour of the antiviral drug acyclovir in developed polymeric network. Cross-linked β-cyclodextrin and carboxymethyl cellulose hydrogels can be used as promising candidates for the design and development of controlled drug-delivery systems.
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Electrospun Fibers of Cyclodextrins and Poly(cyclodextrins). Molecules 2017; 22:molecules22020230. [PMID: 28165381 PMCID: PMC6155744 DOI: 10.3390/molecules22020230] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/21/2017] [Accepted: 01/30/2017] [Indexed: 11/28/2022] Open
Abstract
Cyclodextrins (CDs) can endow electrospun fibers with outstanding performance characteristics that rely on their ability to form inclusion complexes. The inclusion complexes can be blended with electrospinnable polymers or used themselves as main components of electrospun nanofibers. In general, the presence of CDs promotes drug release in aqueous media, but they may also play other roles such as protection of the drug against adverse agents during and after electrospinning, and retention of volatile fragrances or therapeutic agents to be slowly released to the environment. Moreover, fibers prepared with empty CDs appear particularly suitable for affinity separation. The interest for CD-containing nanofibers is exponentially increasing as the scope of applications is widening. The aim of this review is to provide an overview of the state-of-the-art on CD-containing electrospun mats. The information has been classified into three main sections: (i) fibers of mixtures of CDs and polymers, including polypseudorotaxanes and post-functionalization; (ii) fibers of polymer-free CDs; and (iii) fibers of CD-based polymers (namely, polycyclodextrins). Processing conditions and applications are analyzed, including possibilities of development of stimuli-responsive fibers.
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Silva Â, Duarte A, Sousa S, Ramos A, Domingues FC. Characterization and antimicrobial activity of cellulose derivatives films incorporated with a resveratrol inclusion complex. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.06.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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69
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Trotta F, Caldera F, Cavalli R, Soster M, Riedo C, Biasizzo M, Uccello Barretta G, Balzano F, Brunella V. Molecularly imprinted cyclodextrin nanosponges for the controlled delivery of L-DOPA: perspectives for the treatment of Parkinson's disease. Expert Opin Drug Deliv 2016; 13:1671-1680. [PMID: 27737572 DOI: 10.1080/17425247.2017.1248398] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND L-DOPA is an amino acid precursor to the neurotransmitter dopamine that is extensively used as a prodrug for the treatment of Parkinson's disease. However, L-DOPA is an unstable compound: when exposed to light or added to aqueous solutions, it may degrade, compromising its therapeutic properties. METHODS In this work, a new type of drug-loaded cyclodextrin-based nanosponge, obtained using molecular imprinting, is described for the prolonged and controlled release of L-DOPA. The molecularly imprinted nanosponges (MIP-NSs) were synthesized by cross-linking β-cyclodextrin with 1,1'-carbonyldiimidazole in DMF in the presence of L-DOPA as a template molecule. TGA, DSC and FTIR analyses were performed to characterize the interactions between L-DOPA and the two nanosponge structures. Quantitative NMR spectroscopy was used to determine the amount and the affinity of L-DOPA entrapped in the nanosponges. The in vitro L-DOPA release kinetics from the NSs were quantitatively determined by HPLC analysis. RESULTS The MIP-NSs show a slower and more prolonged release profile than the non-imprinted nanosponges. No degradation of the L-DOPA hosted in the MIP-NSs was observed after long-term storage at room temperature. CONCLUSIONS The MIP-NSs are a promising alternative for the storage and controlled delivery of L-DOPA.
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Affiliation(s)
- Francesco Trotta
- a Dipartimento di Chimica , University of Torino , Torino , Italy
| | - Fabrizio Caldera
- a Dipartimento di Chimica , University of Torino , Torino , Italy
| | - Roberta Cavalli
- b Dipartimento di Scienza e Tecnologia del Farmaco , University of Torino , Torino , Italy
| | - Marco Soster
- b Dipartimento di Scienza e Tecnologia del Farmaco , University of Torino , Torino , Italy
| | - Chiara Riedo
- a Dipartimento di Chimica , University of Torino , Torino , Italy
| | - Miriam Biasizzo
- a Dipartimento di Chimica , University of Torino , Torino , Italy
| | | | - Federica Balzano
- c Dipartimento di Chimica e Chimica industriale , University of Pisa , Pisa , Italy
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70
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Giglio V, Bellia F, Oliveri V, Vecchio G. Aminocyclodextrin Oligomers as Protective Agents of Protein Aggregation. Chempluschem 2016; 81:660-665. [PMID: 31968719 DOI: 10.1002/cplu.201600239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Indexed: 12/12/2022]
Abstract
Over 30 different amyloid proteins and a number of corresponding protein-misfolding diseases have been identified. Among these is Alzheimer's disease, the most common neurodegenerative disorder. The treatment of these diseases is still a goal to reach and many molecules have been studied in this context. Among these, the cyclodextrins have shown interesting potential as agents against protein aggregation (antiaggregants). On the basis of this interest, we investigated the effect on protein aggregation of some oligomers of β-cyclodextrins. In particular, it was found that amino oligomers show good inhibition of β-amyloid aggregation in the micromolar concentration range. The presence of both a multicavity system and amino groups seems to be essential for preventing protein aggregation.
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Affiliation(s)
- Valentina Giglio
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Francesco Bellia
- Istituto di Biostrutture e Bioimmagini, CNR, Via P. Gaifami 18, 95126, Catania, Italy
| | - Valentina Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy.,Consorzio Interuniversitario di Ricerca, in Chimica dei Metalli nei Sistemi Biologici, C.I.R.C.M.S.B., Unità di Ricerca di Catania, 95125, Catania, Italy
| | - Graziella Vecchio
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy
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71
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Zhao MR, Wang LS, Liu HW, Wang YJ, Yang H. Preparation, physicochemical characterization and in vitro dissolution studies of azithromycin-cyclodextrin inclusion complexes. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0613-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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72
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Strandman S, Zhu XX. Self-Healing Supramolecular Hydrogels Based on Reversible Physical Interactions. Gels 2016; 2:E16. [PMID: 30674148 PMCID: PMC6318650 DOI: 10.3390/gels2020016] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 03/23/2016] [Accepted: 03/28/2016] [Indexed: 12/26/2022] Open
Abstract
Dynamic and reversible polymer networks capable of self-healing, i.e., restoring their mechanical properties after deformation and failure, are gaining increasing research interest, as there is a continuous need towards extending the lifetime and improving the safety and performance of materials particularly in biomedical applications. Hydrogels are versatile materials that may allow self-healing through a variety of covalent and non-covalent bonding strategies. The structural recovery of physical gels has long been a topic of interest in soft materials physics and various supramolecular interactions can induce this kind of recovery. This review highlights the non-covalent strategies of building self-repairing hydrogels and the characterization of their mechanical properties. Potential applications and future prospects of these materials are also discussed.
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Affiliation(s)
- Satu Strandman
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada.
| | - X X Zhu
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada.
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73
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Karoyo AH, Wilson LD. Preparation and Characterization of a Polymer-Based "Molecular Accordion". LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3066-3078. [PMID: 26931298 DOI: 10.1021/acs.langmuir.6b00099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A urethane-based polymer material, denoted HDI-1, was obtained from the addition reaction of β-cyclodextrin (β-CD) with 1,6-hexamethylene diisocyanate (HDI) at the 1:1 mole ratio. In aqueous solution and ambient temperature conditions, HDI-1 adopts a compact (coiled) morphology where the cross-linker units become coiled and are partially self-included in the annular hydroxyl (interstitial) region of β-CD. As the temperature is raised or as p-nitrophenol (PNP) was included within the β-CD cavity and the noninclusion sites of the polymer, an extended (uncoiled) morphology was adopted. The equilibrium distribution between the extended and the compact forms of HDI-1 is thermally and chemically switchable, in accordance with the hydration properties and host-guest chemistry of this responsive polymer system. The molecular structure of this water-soluble urethane polymer and its host-guest complexes with PNP were investigated using spectroscopic (Raman, (1)H NMR, induced circular dichroism), dynamic light scattering (DLS), and calorimetric (DSC) methods in aqueous solution at ambient pH, and compared with native β-CD. This study reports on the unique supramolecular properties of a polymer that resembles a thermally and chemically responsive "molecular accordion".
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Affiliation(s)
- Abdalla H Karoyo
- Department of Chemistry, University of Saskatchewan , 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan , 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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Giglio V, Viale M, Monticone M, Aura AM, Spoto G, Natile G, Intini FP, Vecchio G. Cyclodextrin polymers as carriers for the platinum-based anticancer agent LA-12. RSC Adv 2016. [DOI: 10.1039/c5ra22398a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Cyclodextrin-based drug nanocarriers look very promising for improving the cytotoxicity of LA-12.
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Affiliation(s)
- Valentina Giglio
- Dipartimento di Scienze Chimiche
- Università di Catania
- 95125 Catania
- Italy
| | - Maurizio Viale
- IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro
- U.O.C. Bioterapie
- Genova
- Italy
| | - Massimiliano Monticone
- IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro
- U.O.C. Bioterapie
- Genova
- Italy
| | - Angela M. Aura
- Dipartimento di Scienze Chimiche
- Università di Catania
- 95125 Catania
- Italy
| | - Giuseppe Spoto
- Dipartimento di Scienze Chimiche
- Università di Catania
- 95125 Catania
- Italy
| | | | | | - Graziella Vecchio
- Dipartimento di Scienze Chimiche
- Università di Catania
- 95125 Catania
- Italy
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Figueiredo L, Erny GL, Santos L, Alves A. Applications of molecularly imprinted polymers to the analysis and removal of personal care products: A review. Talanta 2015; 146:754-65. [PMID: 26695327 DOI: 10.1016/j.talanta.2015.06.027] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 06/09/2015] [Accepted: 06/13/2015] [Indexed: 12/25/2022]
Abstract
Personal-care products (PCPs) involve a variety of chemicals whose persistency along with their constant release into the environment raised concern to their potential impact on wildlife and humans health. Regarded as emergent contaminants, PCPs demonstrated estrogenic activity leading to the need of new methodologies to detect and remove those compounds from the environment. Molecular imprinting starts with a complex between a template molecule and a functional monomer, which is then polymerized in the presence of a cross-linker. After template removal, the polymer will contain specific cavities. Based on a good selectivity towards the template, molecularly imprinted polymers (MIPs) have been investigated as efficient materials for the analysis and extraction of the so called emergent pollutants contaminants. Rather than lowering the limit of detections, the key theoretical advantage of MIP over existing methodologies is the potential to target specific chemicals. This unique feature, sometime named specificity (as synonym to very high selectivity) allows to use cheap, simple and/or rapid quantitative techniques such as fast separation with ultra-violet (UV) detection, sensors or even spectrometric techniques. When a high degree of selectivity is achieved, samples extracted with MIPs can be directly analyzed without the need of a separation step. However, while some papers clearly demonstrated the specificity of their MIP toward the targeted PCP, such prove is often lacking, especially with real matrices, making it difficult to assess the success of the different approaches. This review paper focusses on the latest development of MIPs for the analysis of personal care products in the environment, with particular emphasis on design, preparation and practical applications of MIPs.
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Affiliation(s)
- L Figueiredo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - G L Erny
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - L Santos
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - A Alves
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Nano-Sized Cyclodextrin-Based Molecularly Imprinted Polymer Adsorbents for Perfluorinated Compounds-A Mini-Review. NANOMATERIALS 2015; 5:981-1003. [PMID: 28347047 PMCID: PMC5312915 DOI: 10.3390/nano5020981] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/14/2015] [Accepted: 05/19/2015] [Indexed: 11/24/2022]
Abstract
Recent efforts have been directed towards the design of efficient and contaminant selective remediation technology for the removal of perfluorinated compounds (PFCs) from soils, sediments, and aquatic environments. While there is a general consensus on adsorption-based processes as the most suitable methodology for the removal of PFCs from aquatic environments, challenges exist regarding the optimal materials design of sorbents for selective uptake of PFCs. This article reviews the sorptive uptake of PFCs using cyclodextrin (CD)-based polymer adsorbents with nano- to micron-sized structural attributes. The relationship between synthesis of adsorbent materials and their structure relate to the overall sorption properties. Hence, the adsorptive uptake properties of CD-based molecularly imprinted polymers (CD-MIPs) are reviewed and compared with conventional MIPs. Further comparison is made with non-imprinted polymers (NIPs) that are based on cross-linking of pre-polymer units such as chitosan with epichlorohydrin in the absence of a molecular template. In general, MIPs offer the advantage of selectivity, chemical tunability, high stability and mechanical strength, ease of regeneration, and overall lower cost compared to NIPs. In particular, CD-MIPs offer the added advantage of possessing multiple binding sites with unique physicochemical properties such as tunable surface properties and morphology that may vary considerably. This mini-review provides a rationale for the design of unique polymer adsorbent materials that employ an intrinsic porogen via incorporation of a macrocyclic compound in the polymer framework to afford adsorbent materials with tunable physicochemical properties and unique nanostructure properties.
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Simões SMN, Rey-Rico A, Concheiro A, Alvarez-Lorenzo C. Supramolecular cyclodextrin-based drug nanocarriers. Chem Commun (Camb) 2015; 51:6275-89. [DOI: 10.1039/c4cc10388b] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hosting of polymers, lipids and drug conjugates makes cyclodextrins suitable to prepare biocompatible, targetable and stimuli-responsive supramolecular drug nanocarriers.
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Affiliation(s)
- Susana M. N. Simões
- Faculty of Pharmacy
- University of Coimbra
- Coimbra
- Portugal
- Center for Neuroscience and Cell Biology
| | - Ana Rey-Rico
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - Angel Concheiro
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
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