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Kubeil M, Suzuki Y, Casulli MA, Kamal R, Hashimoto T, Bachmann M, Hayashita T, Stephan H. Exploring the Potential of Nanogels: From Drug Carriers to Radiopharmaceutical Agents. Adv Healthc Mater 2024; 13:e2301404. [PMID: 37717209 DOI: 10.1002/adhm.202301404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/21/2023] [Indexed: 09/18/2023]
Abstract
Nanogels open up access to a wide range of applications and offer among others hopeful approaches for use in the field of biomedicine. This review provides a brief overview of current developments of nanogels in general, particularly in the fields of drug delivery, therapeutic applications, tissue engineering, and sensor systems. Specifically, cyclodextrin (CD)-based nanogels are important because they have exceptional complexation properties and are highly biocompatible. Nanogels as a whole and CD-based nanogels in particular can be customized in a wide range of sizes and equipped with a desired surface charge as well as containing additional molecules inside and outside, such as dyes, solubility-mediating groups or even biological vector molecules for pharmaceutical targeting. Currently, biological investigations are mainly carried out in vitro, but more and more in vivo applications are gaining importance. Modern molecular imaging methods are increasingly being used for the latter. Due to an extremely high sensitivity and the possibility of obtaining quantitative data on pharmacokinetic and pharmacodynamic properties, nuclear methods such as single photon emission computed tomography (SPECT) and positron emission tomography (PET) using radiolabeled compounds are particularly suitable here. The use of radiolabeled nanogels for imaging, but also for therapy, is being discussed.
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Affiliation(s)
- Manja Kubeil
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Yota Suzuki
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-Ku, Saitama, 338-8570, Japan
- Faculty of Science & Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | | | - Rozy Kamal
- Department of Nuclear Medicine, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Takeshi Hashimoto
- Faculty of Science & Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | - Michael Bachmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Takashi Hayashita
- Faculty of Science & Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | - Holger Stephan
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research Bautzner Landstraße 400, 01328, Dresden, Germany
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Erdal E, Bakici C, Arslan A, Batur B, Yaman ME, Alçığır ME, Akyol M, Ekim O, Salih B, Uğurlu N. Ocular pharmacokinetics and toxicity of nanoparticular acetazolamide: In vivo distribution and safety of PHBV-ACZ nanoparticle. Int J Pharm 2023; 645:123336. [PMID: 37598873 DOI: 10.1016/j.ijpharm.2023.123336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Diabetic macular edema (DME) is defined as fluid accumulation in the macular region, between the retinal layers, due to many diseases, especially diabetes. DME is one of the major complications of diabetic retinopathy (DRP). Carbonic anhydrase inhibitors (CAI) are a pharmaceutical agent used in different fields, especially glaucoma treatment. Acetazolamide (ACZ), which is a CAI, is an active substance that has been used off-label for many years in the treatment of macular edema due to diabetes and many other diseases. The low solubility and bioavailability of ACZ limit its use in the treatment of DME. In this study, a nanoparticulate formulation was developed that would increase the solubility and bioavailability of ACZ and allow it to be administered intravitreally. ACZ was loaded on poly(3-hydroxybutyrate-co-3-Hydroxyvalerate) (PHBV) nanoparticles and the loading efficiency was 71.58 ± 1.22%. Toxicity of nanoparticles after intravitreal application was evaluated with anterior segment and posterior segment examination findings, intraocular pressure (IOP) measurements and electrophysiological tests. At the end of the 3-month follow-up, electroretinography (ERG) measurements demonstrated that ACZ loaded PHBV (PHBV-ACZ) nanoparticles did not cause loss of function in retinal cells. On histological examination, rare degenerative changes were observed in several cell groups. In addition, pharmacokinetic studies were performed to determine the tissue distribution of ACZ at various periods. ACZ was identified in vitreous humor and retina at the highest concentration. Based on our results, the prepared nanoparticle formulation can release long-term CAI for DRP therapy and accordingly can reduce the need for monthly intravitreal injections.
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Affiliation(s)
- Ebru Erdal
- Faculty of Medicine, Advanced Technologies Application and Research Center, Ankara Yıldırım Beyazıt University, 06800 Ankara, Turkey
| | - Caner Bakici
- Faculty of Veterinary Medicine, Department of Anatomy, Ankara University, 06110 Ankara, Turkey
| | - Aslıhan Arslan
- School of Pharmacy, Medical Biology Center, Queen's University Belfast, Northern, Ireland, UK
| | - Barış Batur
- Faculty of Veterinary Medicine, Department of Anatomy, Ankara University, 06110 Ankara, Turkey; Graduate School of Health Sciences, Ankara University, Ankara, Turkey
| | - Mehmet Emrah Yaman
- Faculty of Pharmacy, Department of Analytical Chemistry, Ataturk University, 25240 Erzurum, Turkey
| | - Mehmet Eray Alçığır
- Faculty of Veterinary Medicine, Department of Pathology, Kirikkale University, 71450 Kirikkale, Turkey
| | - Mesut Akyol
- Department of Biostatistics and Medical Informatics, Ankara Yildirim Beyazit University, 06800 Ankara, Turkey
| | - Okan Ekim
- Faculty of Veterinary Medicine, Department of Anatomy, Ankara University, 06110 Ankara, Turkey
| | - Bekir Salih
- Department of Chemistry, Hacettepe University, 06800 Ankara, Turkey
| | - Nagihan Uğurlu
- Faculty of Medicine, Advanced Technologies Application and Research Center, Ankara Yıldırım Beyazıt University, 06800 Ankara, Turkey; Department of Ophtalmology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, 06800, Turkey.
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Khalid FM, Ijaz M, Mahmood A, Waqas MK, Hussain T, Asim MH, Ahmad N, Arshad S, Rehman MU, Nazir I. Mucoadhesive, Fluconazole-Loaded Nanogels Complexed with Sulfhydryl-β-cyclodextrin for Oral Thrush Treatment. AAPS PharmSciTech 2023; 24:194. [PMID: 37752361 DOI: 10.1208/s12249-023-02653-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/05/2023] [Indexed: 09/28/2023] Open
Abstract
The objective of this study was to generate fluconazole-loaded mucoadhesive nanogels to address the problem of hydrophobicity of fluconazole (FL). An inclusion complex was formulated with sulfhydryl-β-CD (SH-β-CD) followed by nanogels formation by a Schiff base reaction of carbopol 940 (CA-940) and gelatin (GE). For characterization, PXRD, FT-IR analysis, drug content, and phase solubility studies were performed. Similarly, nanogels were assessed for particle size, zeta potential, organoleptic, and spreadability studies. Moreover, drug contents, rheological, in vitro drug permeation, release kinetics, toxicity, and stability studies of nanogels were performed. Furthermore, mucoadhesive characteristics over the buccal mucosal membrane of the goat were evaluated. The nanogels formulated with a higher amount of CA-940 and subsequently loaded with the inclusion complexes of FL showed promising results. PXRD and FT-IR analysis confirmed the physical complexes by displaying a reduction in the intensity of peaks of FL. The average particle size of nanogels was in the range of 257 to 361 nm. The highest drug content of 88% was encapsulated within the FL-SH-β-CD complex. All formulations at 0.5-1% concentration displayed no toxicity to the Caco-2 cell lines. Nanogels loaded with FL-SH-β-CD complexes showed 18-fold improved mucoadhesion on the buccal mucous membrane of the goat when compared to simple nanogels. The in vitro permeation study exhibited significantly enhanced permeation and first-order concentration-dependent drug release was observed. On the bases of these findings, we can conclude that a mucoadhesive nanogel-based drug delivery system can be an ideal therapy for candidiasis.
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Affiliation(s)
| | - Muhammad Ijaz
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Defense Road, 1.5Km off Raiwind Road, Lahore, 54000, Pakistan.
| | - Arshad Mahmood
- College of Pharmacy, Al Ain University, Abu Dhabi Campus, 51133, Abu Dhabi, United Arab Emirates
| | | | - Talib Hussain
- Institute of Pharmaceutical Sciences, UVAS, Lahore, 54000, Pakistan
| | | | - Nadeem Ahmad
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Defense Road, 1.5Km off Raiwind Road, Lahore, 54000, Pakistan
| | - Shumaila Arshad
- Doctor's Institute of Health Sciences, 3-Km Sargodha Bypass Road, Sargodha, 40100, Pakistan
| | - Masood Ur Rehman
- Riphah Institute of Pharmaceutical Sciences, Ripha International University, Islamabad, 45550, Pakistan
| | - Imran Nazir
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Defense Road, 1.5Km off Raiwind Road, Lahore, 54000, Pakistan
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Martins TJ, Parisi C, Suzuki Y, Hashimoto T, Nostro A, Ginestra G, Hayashita T, Sortino S. Supramolecular Assemblies of Fluorescent Nitric Oxide Photoreleasers with Ultrasmall Cyclodextrin Nanogels. Molecules 2023; 28:5665. [PMID: 37570634 PMCID: PMC10419615 DOI: 10.3390/molecules28155665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Developing biocompatible nitric oxide (NO) photoreleasing nanoconstucts is of great interest in view of the large variety of biological roles that NO plays and the unique advantage light offers in controlling NO release in space and time. In this contribution, we report the supramolecular assemblies of two NO photodonors (NOPDs), NBF-NO and RHD-NO, as water-dispersible nanogels, ca. 10 nm in diameter, based on γ-cyclodextrins (γ-CDng). These NOPDs, containing amino-nitro-benzofurazan and rhodamine chromophores as light harvesting antennae, can be activated by visible light, are highly hydrophobic and can be effectively entrapped within the γ-CDng. Despite being confined in a very restricted environment, neither NOPD suffer self-aggregation and preserve their photochemical and photophysical properties well. The blue light excitation of the weakly fluorescent γ-CDng/NBF-NO complex results in effective NO release and the concomitant generation of the highly green, fluorescent co-product, which acts as an optical NO reporter. Moreover, the green light excitation of the persistent red fluorescent γ-CDng/RHD-NO triggers NO photorelease without significantly modifying the emission properties. The activatable and persistent fluorescence emissions of the NOPDs are useful for monitoring their interactions with the Gram-positive methicillin-resistant Staphylococcus aureus, whose growth is significantly inhibited by γ-CDng/RHD-NO upon green light irradiation.
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Affiliation(s)
- Tassia J. Martins
- Laboratory of Photochemistry, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy; (T.J.M.); (C.P.)
| | - Cristina Parisi
- Laboratory of Photochemistry, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy; (T.J.M.); (C.P.)
| | - Yota Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, Japan
- Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, Japan
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le, F. Stagno d’Alcontres, 31, I-98166 Messina, Italy (G.G.)
| | - Giovanna Ginestra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le, F. Stagno d’Alcontres, 31, I-98166 Messina, Italy (G.G.)
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, Japan
| | - Salvatore Sortino
- Laboratory of Photochemistry, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy; (T.J.M.); (C.P.)
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Altuntaş E, Özkan B, Güngör S, Özsoy Y. Biopolymer-Based Nanogel Approach in Drug Delivery: Basic Concept and Current Developments. Pharmaceutics 2023; 15:1644. [PMID: 37376092 DOI: 10.3390/pharmaceutics15061644] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Due to their increased surface area, extent of swelling and active substance-loading capacity and flexibility, nanogels made from natural and synthetic polymers have gained significant interest in scientific and industrial areas. In particular, the customized design and implementation of nontoxic, biocompatible, and biodegradable micro/nano carriers makes their usage very feasible for a range of biomedical applications, including drug delivery, tissue engineering, and bioimaging. The design and application methodologies of nanogels are outlined in this review. Additionally, the most recent advancements in nanogel biomedical applications are discussed, with particular emphasis on applications for the delivery of drugs and biomolecules.
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Affiliation(s)
- Ebru Altuntaş
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul University, 34116 Istanbul, Türkiye
| | - Burcu Özkan
- Graduate School of Natural and Applied Science, Yildiz Technical University, 34220 Istanbul, Türkiye
| | - Sevgi Güngör
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul University, 34116 Istanbul, Türkiye
| | - Yıldız Özsoy
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul University, 34116 Istanbul, Türkiye
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6
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Takeuchi S, Cesari A, Soma S, Suzuki Y, Casulli MA, Sato K, Mancin F, Hashimoto T, Hayashita T. Preparation of ultrasmall cyclodextrin nanogels by an inverse emulsion method using a cationic surfactant. Chem Commun (Camb) 2023; 59:4071-4074. [PMID: 36938636 DOI: 10.1039/d3cc00523b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Stable water-in-oil emulsion membranes can be prepared using [dilauryl(dimethyl)ammonium] bromide (DDAB), a cationic surfactant. We prepared ultrasmall cyclodextrin (γ-CyD) nanogels (γ-CyDngs) by forming ionic pairs between the secondary hydroxyl groups of γ-CyDs and DDAB. Fluorescence and NMR characterisation of the obtained γ-CyDngs revealed superior inclusion affinities compared with native γ-CyDs, beneficial for the solubilisation of hydrophobic compounds in water.
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Affiliation(s)
- Satomi Takeuchi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Andrea Cesari
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Suzuka Soma
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Yota Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Maria Antonietta Casulli
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Kai Sato
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Fabrizio Mancin
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
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7
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Development and Characterization of Cyclodextrin-Based Nanogels as a New Ibuprofen Cutaneous Delivery System. Pharmaceutics 2022; 14:pharmaceutics14122567. [PMID: 36559061 PMCID: PMC9788478 DOI: 10.3390/pharmaceutics14122567] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Abstract
Nanogels combine the properties of hydrogels and nanocarrier systems, resulting in very effective drug delivery systems, including for cutaneous applications. Cyclodextrins (CDs) have been utilised to enhance the nanogels' loading ability towards poorly soluble drugs and promote/sustain drug release. However, formation of CD-based nanogels requires the use of specially modified CDs, or of crosslinking agents. The aim of this work was to develop a CD-based nanogel to improve the cutaneous delivery of ibuprofen by using the soluble β-cyclodextrin/epichlorohydrin polymer (EPIβCD) without adding any potentially toxic crosslinker. The use of EPIβCD enabled increasing ibuprofen loading due to its complexing/solubilizing power towards the poorly soluble drug and prolonging drug release over time due to the nanogel formation. DLS analysis proved that EPIβCD allowed the formation of nanostructures ranging from 60 up to 400 nm, depending on the gelling agent type and the gel preparation method. EPIβCD replacement with monomeric HPβCD did not lead in any case to nanogel formation. Permeation experiments using skin-simulating artificial membranes proved that the EPIβCD-based nanogel enhanced ibuprofen solubility and release, increasing its permeation rate up to 3.5 times, compared to a reference formulation without CD and to some commercial gel formulations, and also assured a sustained release. Moreover, EPIβCD replacement with HPβCD led to a marked increase in drug solubility and initial release rate, but did not provide a prolonged release due to the lack of a nano-matrix structure controlling drug diffusion.
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Oktay AN, Celebi N, Ilbasmis-Tamer S, Kaplanoğlu GT. Cyclodextrin-based nanogel of flurbiprofen for dermal application: In vitro studies and in vivo skin irritation evaluation. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Development of β-cyclodextrin/chitosan-co-poly (2-acrylamide-2-methylpropane sulphonic acid) cross-linked hybrid IPN-nanogels to enhance the solubility of rosuvastatin: An in vitro and in vivo attributes. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Topuz F, Uyar T. Advances in the development of cyclodextrin-based nanogels/microgels for biomedical applications: Drug delivery and beyond. Carbohydr Polym 2022; 297:120033. [DOI: 10.1016/j.carbpol.2022.120033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 12/20/2022]
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Dave R, Randhawa G, Kim D, Simpson M, Hoare T. Microgels and Nanogels for the Delivery of Poorly Water-Soluble Drugs. Mol Pharm 2022; 19:1704-1721. [PMID: 35319212 DOI: 10.1021/acs.molpharmaceut.1c00967] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
While microgels and nanogels are most commonly used for the delivery of hydrophilic therapeutics, the water-swollen structure, size, deformability, colloidal stability, functionality, and physicochemical tunability of microgels can also offer benefits for addressing many of the barriers of conventional vehicles for the delivery of hydrophobic therapeutics. In this review, we describe approaches for designing microgels with the potential to load and subsequently deliver hydrophobic drugs by creating compartmentalized microgels (e.g., core-shell structures), introducing hydrophobic domains in microgels, leveraging host-guest interactions, and/or applying "smart" environmentally responsive materials with switchable hydrophobicity. In particular, the challenge of promoting hydrophobic drug loading without compromising the inherent advantages of microgels as delivery vehicles and ensuring practically relevant release kinetics from such structures is highlighted, with an eye toward the practical translation of such vehicles to the clinic.
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Affiliation(s)
- Ridhdhi Dave
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Gurpreet Randhawa
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Daeun Kim
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Madeline Simpson
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
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Pooresmaeil M, Namazi H, Salehi R. Dual anticancer drug delivery of D-galactose-functionalized stimuli-responsive nanogels for targeted therapy of the liver hepatocellular carcinoma. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111061] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Maddiboyina B, Desu PK, Vasam M, Challa VT, Surendra AV, Rao RS, Alagarsamy S, Jhawat V. An insight of nanogels as novel drug delivery system with potential hybrid nanogel applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:262-278. [PMID: 34547214 DOI: 10.1080/09205063.2021.1982643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nanogels are cross-linked, nano-sized hydrogels with dimensions ranging from 20 to 200 nm. Nanogel-based nanoplatforms have proven to be an excellent choice for pharmaceutical formulations. Nanosystems have properties that are very useful in polymeric drug delivery applications, and their particular strength is that they have these nanosystemic properties and can thus merge with polymeric materials. Drug-carrier size is designed to be nano-sized in order to maintain optimal stability, resulting in more surface area and interior space. This also allows for a prolonged period of time for loaded pharmaceuticals to circulate. They can be classified by stimuli responsive or non-responsive behavior and type of linkages present in the network chains of gel structure. Nanogel can be synthesized by Photolithographic, modified pullulan, emulsion polymerization reverse microemulsion polymerization inverse miniemulsion polymerization and free radical crosslinking polymerization technique. Hybrid nanogels are different from conventional polymer nanoparticles often employed for drug administration. They can encapsulate bioactive medicines and regulate the release of such medications over time and in particular areas. The hybrid nanogels used to create a specific form of the hybrid, especially one geared towards increasing targeted drug delivery, enhance the effectiveness of ailment treatments, but perhaps the introduction of a multifunctional nanogel-based drug delivery system.
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Affiliation(s)
- Balaji Maddiboyina
- Department of Pharmacy, NRK & KSR Gupta College of Pharmacy, Tenali Guntur, Andhra Pradesh, India
| | - Prasanna Kumar Desu
- College of Pharmacy, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh, India
| | - Mallikarjun Vasam
- Department of Pharmacy, Chaitanya (Deemed to be University)-Pharmacy, Warangal, Telangana, India
| | - Veerendra Teja Challa
- School of Informatics and Computing, Indiana University-Purdue University (IUPUI), Indianapolis, USA
| | - Amareswarapu V Surendra
- College of Pharmacy, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh, India
| | - Raja Sridhar Rao
- Department of Pharmacy, Pathfinder Institute of Pharmacy Educational and Research, Warangal, Telangana, India
| | - Shanmugarathinam Alagarsamy
- Department of Pharmaceutical Technology, University College of Engineering, Anna University, Tiruchirappalli, Tamil Nadu, India
| | - Vikas Jhawat
- Department of Pharmacy, School of Medical & Allied Sciences, GD Goenka University, Gurgaon, India
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14
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Banjare N, Gautam L, Behera C, Gupta PN, Vyas S, Vyas SP. Cyclodextrin nanosponges based site-retentive controlled release system for treatment of rheumatic arthritis. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Barclay TG, Day CM, Petrovsky N, Garg S. Review of polysaccharide particle-based functional drug delivery. Carbohydr Polym 2019; 221:94-112. [PMID: 31227171 PMCID: PMC6626612 DOI: 10.1016/j.carbpol.2019.05.067] [Citation(s) in RCA: 199] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/26/2019] [Accepted: 05/22/2019] [Indexed: 01/06/2023]
Abstract
This review investigates the significant role polysaccharide particles play in functional drug delivery. The importance of these systems is due to the wide variety of polysaccharides and their natural source meaning that they can provide biocompatible and biodegradable systems with a range of both biological and chemical functionality valuable for drug delivery. This functionality includes protection and presentation of working therapeutics through avoidance of the reticuloendothelial system, stabilization of biomacromolecules and increasing the bioavailability of incorporated small molecule drugs. Transport of the therapeutic is also key to the utility of polysaccharide particles, moving drugs from the site of administration through mucosal binding and transport and using chemistry, size and receptor mediated drug targeting to specific tissues. This review also scrutinizes the methods of synthesizing and constructing functional polysaccharide particle drug delivery systems that maintain and extend the functionality of the natural polysaccharides.
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Affiliation(s)
- Thomas G Barclay
- School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA 5000, Australia.
| | - Candace Minhthu Day
- School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA 5000, Australia.
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, 1 Flinders Drive, Bedford Park, SA 5042, Australia; Department of Endocrinology, Flinders Medical Centre/Flinders University, Bedford Park, SA 5042, Australia.
| | - Sanjay Garg
- School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA 5000, Australia.
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Carboxymethyl chitosan-based nanogels via acid-labile ortho ester linkages mediated enhanced drug delivery. Int J Biol Macromol 2019; 129:477-487. [DOI: 10.1016/j.ijbiomac.2019.02.072] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 12/16/2022]
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17
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Cyclosporine-loaded cross-linked inserts of sodium hyaluronan and hydroxypropyl-β-cyclodextrin for ocular administration. Carbohydr Polym 2018; 201:308-316. [DOI: 10.1016/j.carbpol.2018.08.073] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/30/2018] [Accepted: 08/17/2018] [Indexed: 12/25/2022]
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18
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Giulbudagian M, Hönzke S, Bergueiro J, Işık D, Schumacher F, Saeidpour S, Lohan SB, Meinke MC, Teutloff C, Schäfer-Korting M, Yealland G, Kleuser B, Hedtrich S, Calderón M. Enhanced topical delivery of dexamethasone by β-cyclodextrin decorated thermoresponsive nanogels. NANOSCALE 2017; 10:469-479. [PMID: 29227500 DOI: 10.1039/c7nr04480a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Highly hydrophilic, responsive nanogels are attractive as potential systems for the topical delivery of bioactives encapsulated in their three-dimensional polymeric scaffold. Yet, these drug carrier systems suffer from drawbacks for efficient delivery of hydrophobic drugs. Addressing this, β-cyclodextrin (βCD) could be successfully introduced into the drug carrier systems by exploiting its unique affinity toward dexamethasone (DXM) as well as its role as topical penetration enhancer. The properties of βCD could be combined with those of thermoresponsive nanogels (tNGs) based on dendritic polyglycerol (dPG) as a crosslinker and linear thermoresponsive polyglycerol (tPG) inducing responsiveness to temperature changes. Electron paramagnetic resonance (EPR) studies localized the drug within the hydrophobic cavity of βCD by differences in its mobility and environmental polarity. In fact, the fabricated carriers combining a particulate delivery system with a conventional penetration enhancer, resulted in an efficient delivery of DXM to the epidermis and the dermis of human skin ex vivo (enhancement compared to commercial DXM cream: ∼2.5 fold in epidermis, ∼30 fold in dermis). Furthermore, DXM encapsulated in βCD tNGs applied to skin equivalents downregulated the expression of proinflammatory thymic stromal lymphopoietin (TSLP) and outperformed a commercially available DXM cream.
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Affiliation(s)
- M Giulbudagian
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany.
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De Simone V, Dalmoro A, Lamberti G, Caccavo D, d'Amore M, Barba AA. HPMC granules by wet granulation process: Effect of vitamin load on physicochemical, mechanical and release properties. Carbohydr Polym 2017; 181:939-947. [PMID: 29254058 DOI: 10.1016/j.carbpol.2017.11.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/15/2017] [Accepted: 11/15/2017] [Indexed: 11/24/2022]
Abstract
Due to its versatile properties, hydroxypropyl methylcellulose (HPMC) is largely used in many applications and deeply studied in the various fields such as pharmaceuticals, biomaterials, agriculture, food, water purification. In this work, vitamin B12 loaded HPMC granules were produced to investigate their potential application as nutraceutical products. To this aim the impact of vitamin load on physico-chemical, mechanical and release properties of granules, achieved by wet granulation process, was investigated. In particular, three different loads of B12 (1%, 2.3% and 5% w/w) were assayed. Unloaded granules (used as control) and loaded granules were dried, sieved, and then the suitable fraction for practical uses, 0.45-2mm in size, was fully characterized. Results showed that the vitamin incorporation of 5% reduced the granulation performance in the range size of 0.45-2mm and led granules with higher porosity, more rigid and less elastic structures compared to unloaded granules and those loaded at 1% and 2.3% of B12. Vitamin release kinetics of fresh and aged granules were roughly found the same trends for all the prepared lots; however, the vitamin B12 was released more slowly when added with a load at 1% w/w, suggesting a better incorporation.
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Affiliation(s)
- Veronica De Simone
- Dipartimento di Ingegneria Industriale, University of Salerno, Fisciano, SA, Italy; Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy
| | - Annalisa Dalmoro
- Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy
| | - Gaetano Lamberti
- Dipartimento di Ingegneria Industriale, University of Salerno, Fisciano, SA, Italy
| | - Diego Caccavo
- Dipartimento di Ingegneria Industriale, University of Salerno, Fisciano, SA, Italy
| | - Matteo d'Amore
- Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy
| | - Anna Angela Barba
- Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy.
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Neamtu I, Rusu AG, Diaconu A, Nita LE, Chiriac AP. Basic concepts and recent advances in nanogels as carriers for medical applications. Drug Deliv 2017; 24:539-557. [PMID: 28181831 PMCID: PMC8240973 DOI: 10.1080/10717544.2016.1276232] [Citation(s) in RCA: 220] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/13/2016] [Accepted: 12/20/2016] [Indexed: 01/18/2023] Open
Abstract
Nanogels in biomedical field are promising and innovative materials as dispersions of hydrogel nanoparticles based on crosslinked polymeric networks that have been called as next generation drug delivery systems due to their relatively high drug encapsulation capacity, uniformity, tunable size, ease of preparation, minimal toxicity, stability in the presence of serum, and stimuli responsiveness. Nanogels show a great potential in chemotherapy, diagnosis, organ targeting and delivery of bioactive substances. The main subjects reviewed in this article concentrates on: (i) Nanogel assimilation in the nanomedicine domain; (ii) Features and advantages of nanogels, the main characteristics, such as: swelling capacity, stimuli sensitivity, the great surface area, functionalization, bioconjugation and encapsulation of bioactive substances, which are taken into account in designing the structures according to the application; some data on the advantages and limitations of the preparation techniques; (iii) Recent progress in nanogels as a carrier of genetic material, protein and vaccine. The majority of the scientific literature presents the multivalency potential of bioconjugated nanogels in various conditions. Today's research focuses over the overcoming of the restrictions imposed by cost, some medical requirements and technological issues, for nanogels' commercial scale production and their integration as a new platform in biomedicine.
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Affiliation(s)
- Iordana Neamtu
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | | | - Alina Diaconu
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
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21
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Das D, Rameshbabu AP, Ghosh P, Patra P, Dhara S, Pal S. Biocompatible nanogel derived from functionalized dextrin for targeted delivery of doxorubicin hydrochloride to MG 63 cancer cells. Carbohydr Polym 2017; 171:27-38. [PMID: 28578964 DOI: 10.1016/j.carbpol.2017.04.068] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/19/2017] [Accepted: 04/23/2017] [Indexed: 11/29/2022]
Abstract
The present article demonstrates the targeted delivery of doxorubicin hydrochloride to human osteosarcoma cancer cell lines (MG 63) using functionalized dextrin based crosslinked, pH responsive and biocompatible nanogel. The nanogel has been prepared through Michael-type addition reaction using dextrin (Dxt), N, N'-methylene bisacrylamide (MBA, as crosslinker), acrylic acid (AA, as monomer) and potassium persulfate (KPS, as initiator). The structure, composition, morphology of the nanogel have been explored using FTIR and 1H NMR spectroscopy, XRD, TGA, DSC, CHN and AFM analyses. The TEM analysis confirmed that the size of nanogel appeared within 100nm, while DLS study indicates that the diameter of the nanogel remained between 113 and 126nm. The AFM study implied the porous morphology of the synthesized nanogel. The rheological study suggests the gel behaviour of the synthesized nanogel at 37±0.1°C. Difference in% swelling at pH 5.5 and 7.4 indicates pH-responsiveness of the nanogel. The in vitro cytocompatibility results ascertained that the nanogel is non-toxic to human mesenchymal stem cells (hMSCs). In vitro cellular uptake study confirmed that FITC-loaded nanogel can cross the cellular membrane and be well uptake by the cell cytoplasm. The nanogel could efficiently encapsulate doxorubicin hydrochloride (Dox) with the loading efficiency of 27±0.2% after 72h. The Dox-loaded nanogel demonstrates anti-cancer activity towards MG 63 cancer cells and release the encapsulated drug in a controlled way.
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Affiliation(s)
- Dipankar Das
- Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian Institute of Technology (ISM) (Indian School of Mines), Dhanbad 826004, India
| | - Arun Prabhu Rameshbabu
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science & Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Paulomi Ghosh
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science & Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Priyapratim Patra
- Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian Institute of Technology (ISM) (Indian School of Mines), Dhanbad 826004, India
| | - Santanu Dhara
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science & Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Sagar Pal
- Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian Institute of Technology (ISM) (Indian School of Mines), Dhanbad 826004, India.
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22
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Ma Y, Ge Y, Li L. Advancement of multifunctional hybrid nanogel systems: Construction and application in drug co-delivery and imaging technique. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1281-1292. [DOI: 10.1016/j.msec.2016.11.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/21/2016] [Accepted: 11/08/2016] [Indexed: 12/31/2022]
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23
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Karimi M, Zangabad PS, Mehdizadeh F, Malekzad H, Ghasemi A, Bahrami S, Zare H, Moghoofei M, Hekmatmanesh A, Hamblin MR. Nanocaged platforms: modification, drug delivery and nanotoxicity. Opening synthetic cages to release the tiger. NANOSCALE 2017; 9:1356-1392. [PMID: 28067384 PMCID: PMC5300024 DOI: 10.1039/c6nr07315h] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanocages (NCs) have emerged as a new class of drug-carriers, with a wide range of possibilities in multi-modality medical treatments and theranostics. Nanocages can overcome such limitations as high toxicity caused by anti-cancer chemotherapy or by the nanocarrier itself, due to their unique characteristics. These properties consist of: (1) a high loading-capacity (spacious interior); (2) a porous structure (analogous to openings between the bars of the cage); (3) enabling smart release (a key to unlock the cage); and (4) a low likelihood of unfavorable immune responses (the outside of the cage is safe). In this review, we cover different classes of NC structures such as virus-like particles (VLPs), protein NCs, DNA NCs, supramolecular nanosystems, hybrid metal-organic NCs, gold NCs, carbon-based NCs and silica NCs. Moreover, NC-assisted drug delivery including modification methods, drug immobilization, active targeting, and stimulus-responsive release mechanisms are discussed, highlighting the advantages, disadvantages and challenges. Finally, translation of NCs into clinical applications, and an up-to-date assessment of the nanotoxicology considerations of NCs are presented.
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Affiliation(s)
- Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Parham Sahandi Zangabad
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science (TUOMS), Tabriz, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
- Nanomedicine Research Association (NRA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | | | - Hedieh Malekzad
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Faculty of Chemistry, Kharazmi University of Tehran, Tehran, Iran
| | - Alireza Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
| | - Sajad Bahrami
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Zare
- Biomaterials Group, Materials Science & Engineering Department, Iran University of Science & Technology, P.O. Box 1684613114 Tehran, Iran
| | - Mohsen Moghoofei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Hekmatmanesh
- Laboratory of Intelligent Machines, Lappeenranta University of Technology, 53810, Finland
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, 02139, USA
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24
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Debele TA, Mekuria SL, Tsai HC. Polysaccharide based nanogels in the drug delivery system: Application as the carrier of pharmaceutical agents. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:964-981. [DOI: 10.1016/j.msec.2016.05.121] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/23/2016] [Accepted: 05/27/2016] [Indexed: 11/08/2022]
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25
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Mennini N, Casella G, Cirri M, Maestrelli F, Mura P. Development of cyclodextrin hydrogels for vaginal delivery of dehydroepiandrosterone. J Pharm Pharmacol 2016; 68:762-71. [DOI: 10.1111/jphp.12549] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/29/2016] [Indexed: 01/20/2023]
Abstract
Abstract
Objective
To develop a new vaginal delivery system for a sustained release of dehydroepiandrosterone (DHEA) in the treatment of postmenopausal symptoms, aimed to overcome the problems of poor bioavailability of the drug related to its very low water solubility.
Methods
Cyclodextrin (CD)-containing hydrogels were developed, combining in a single device the hydrogel controlled release and mucoadhesion properties, and the CD solubilizing power towards DHEA. The effect of different CDs, alone or in mixtures, on the hydrogel technological and mucoadhesion characteristics was investigated. The best formulations were loaded with DHEA and characterized for loading efficiency and release properties.
Key findings
Hydrogels based on HPβCD/γCD (15/10%w/w) or HPβCD/HP γCD (30/20%w/w) combinations proved to be the most effective, giving ovules with the desired mechanical and mucoadhesive properties. Both formulations showed high drug loading efficiency, due to the solubilizing effect of CDs, and provided a sustained in-situ release, with a rate suitably tunable by varying the drug loaded amount and/or the CD combination.
Conclusions
The proposed formulative strategy allowed to develop an intravaginal device with right consistency and elasticity, easy to apply, able to be retained in situ over 8 h, and to provide an effective DHEA loading and a tunable release rate.
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Affiliation(s)
- Natascia Mennini
- Department of Chemistry, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Giada Casella
- Department of Chemistry, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Marzia Cirri
- Department of Chemistry, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Francesca Maestrelli
- Department of Chemistry, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Paola Mura
- Department of Chemistry, University of Florence, Sesto Fiorentino, Florence, Italy
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26
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Jansook P, Pichayakorn W, Muankaew C, Loftsson T. Cyclodextrin-poloxamer aggregates as nanocarriers in eye drop formulations: dexamethasone and amphotericin B. Drug Dev Ind Pharm 2016; 42:1446-54. [PMID: 26765786 DOI: 10.3109/03639045.2016.1141932] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this present study cyclodextrin (CD)-poloxamer aggregates were characterized and developed as ophthalmic drug carriers. The combined effect of γCD/2-hydroxypropyl-γCD (HPγCD) mixtures and poloxamer on solubilization and permeability of two model drugs, dexamethasone (Dex) and amphotericin B (AmB), was investigated. The CD-poloxamer interaction and complex aggregation were examined by (1)H nuclear magnetic resonance ((1)H-NMR), their solubilizing ability by high-performance liquid chromatography, and their particle size determined by dynamic light scattering and transmission electron microscopy. Formulations containing either 1.5% w/v Dex or 0.15% w/v AmB in eye drop suspensions containing various γCD/HPγCD ratios and poloxamer 407 (P407) were prepared. The solubility of the drugs, surface tension and hemolytic effect of the eye drops and drug permeation from selected formulations were determined. The (1)H-NMR study showed that P407 formed inclusion complex with CDs by inserting its poly(propylene oxide) segment into the CD cavity. P407 and γCD interacted with each other to form nanosized aggregates, and the observed concentration of dissolved γCD and P407 progressively decreased with increasing γCD and P407 concentrations. Including a high proportion of HPγCD improved the drug solubilization and reduced the hemolytic effect. The surface tension of the formulations decreased with increasing P407 concentration. Furthermore, increasing P407 content in the formulations enhanced formation of complex aggregates with consequent slower drug release. It was concluded that the drug/γCD/HPγCD complex was stabilized by P407 through formation of multi-component aggregates. Thus, CD-poloxamer aggregates are self-assembled nanocarriers from which drug delivery characteristics can be adjusted by changing the γCD/HPγCD/P407 ratios.
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Affiliation(s)
- Phatsawee Jansook
- a Faculty of Pharmaceutical Sciences , Chulalongkorn University , Pathumwan, Bangkok , Thailand
| | - Wiwat Pichayakorn
- b Faculty of Pharmaceutical Sciences , Prince of Songkla University , Songkhla , Thailand
| | - Chutimon Muankaew
- c Faculty of Pharmaceutical Sciences , University of Iceland , Reykjavik , Iceland
| | - Thorsteinn Loftsson
- c Faculty of Pharmaceutical Sciences , University of Iceland , Reykjavik , Iceland
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Kawano S, Kida T, Akashi M, Sato H, Shizuma M, Ono D. Preparation of Pickering emulsions through interfacial adsorption by soft cyclodextrin nanogels. Beilstein J Org Chem 2015; 11:2355-64. [PMID: 26734085 PMCID: PMC4685927 DOI: 10.3762/bjoc.11.257] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 11/10/2015] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Emulsions stabilized by colloidal particles are known as Pickering emulsions. To date, soft microgel particles as well as inorganic and organic particles have been utilized as Pickering emulsifiers. Although cyclodextrin (CD) works as an attractive emulsion stabilizer through the formation of a CD-oil complex at the oil-water interface, a high concentration of CD is normally required. Our research focuses on an effective Pickering emulsifier based on a soft colloidal CD polymer (CD nanogel) with a unique surface-active property. RESULTS CD nanogels were prepared by crosslinking heptakis(2,6-di-O-methyl)-β-cyclodextrin with phenyl diisocyanate and subsequent immersion of the resulting polymer in water. A dynamic light scattering study shows that primary CD nanogels with 30-50 nm diameter assemble into larger CD nanogels with 120 nm diameter by an increase in the concentration of CD nanogel from 0.01 to 0.1 wt %. The CD nanogel has a surface-active property at the air-water interface, which reduces the surface tension of water. The CD nanogel works as an effective Pickering emulsion stabilizer even at a low concentration (0.1 wt %), forming stable oil-in-water emulsions through interfacial adsorption by the CD nanogels. CONCLUSION Soft CD nanogel particles adsorb at the oil-water interface with an effective coverage by forming a strong interconnected network and form a stable Pickering emulsion. The adsorption property of CD nanogels on the droplet surface has great potential to become new microcapsule building blocks with porous surfaces. These microcapsules may act as stimuli-responsive nanocarriers and nanocontainers.
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Affiliation(s)
- Shintaro Kawano
- Biomaterial and Commodity Chemicals Research Division, Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
| | - Toshiyuki Kida
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hirofumi Sato
- Biomaterial and Commodity Chemicals Research Division, Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
| | - Motohiro Shizuma
- Biomaterial and Commodity Chemicals Research Division, Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
| | - Daisuke Ono
- Biomaterial and Commodity Chemicals Research Division, Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
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28
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Cheng W, Wang G, Kumar JN, Liu Y. Surfactant-Free Emulsion-Based Preparation of Redox-Responsive Nanogels. Macromol Rapid Commun 2015; 36:2102-6. [PMID: 26379215 DOI: 10.1002/marc.201500421] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/19/2015] [Indexed: 01/28/2023]
Abstract
A surfactant-free emulsion-based approach is developed for preparation of nanogels. A water-in-oil emulsion is generated feasibly from a mixture of water and a solution of disulfide-containing hyperbranched PEGylated poly(amido amine)s, poly(BAC2-AMPD1)-PEG, in chloroform. The water droplets in the emulsion are stabilized and filled with poly(BAC2-AMPD1)-PEG, and the crosslinked poly(amido amine)s nanogels are formed via the intermolecular disulfide exchange reaction. FITC-dextran is loaded within the nanogels by dissolving the compound in water before emulsification. Transmission electron microscopy and dynamic light scattering are applied to characterize the emulsion and the nanogels. The effects of the homogenization rate and the ratio of water/polymer are investigated. Redox-induced degradation and FITC-dextran release profile of the nanogels are monitored, and the results show efficient loading and redox-responsive release of FITC-dextran. This is a promising approach for the preparation of nanogels for drug delivery, especially for neutral charged carbohydrate-based drugs.
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Affiliation(s)
- Weiren Cheng
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore, 117602, Singapore
| | - Guan Wang
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore, 117602, Singapore
| | - Jatin Nitin Kumar
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore, 117602, Singapore
| | - Ye Liu
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore, 117602, Singapore
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29
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Hodge M, Gyanwali G, Villines C, White JL. Synthesis of amphiphilic polymer networks with guest-host properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mathis Hodge
- Department of Chemistry; Oklahoma State University; Stillwater Oklahoma 74078
| | - Gaumani Gyanwali
- Department of Chemistry; Oklahoma State University; Stillwater Oklahoma 74078
| | - Cameron Villines
- Department of Chemistry; Oklahoma State University; Stillwater Oklahoma 74078
| | - Jeffery L. White
- Department of Chemistry; Oklahoma State University; Stillwater Oklahoma 74078
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30
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Constantin M, Bucatariu S, Ascenzi P, Simionescu BC, Fundueanu G. Poly(NIPAAm-co-β-cyclodextrin) microgels with drug hosting and temperature-dependent delivery properties. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.07.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Mateen R, Hoare T. Carboxymethyl and hydrazide functionalized β-cyclodextrin derivatives: A systematic investigation of complexation behaviours with the model hydrophobic drug dexamethasone. Int J Pharm 2014; 472:315-26. [DOI: 10.1016/j.ijpharm.2014.06.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/26/2014] [Accepted: 06/19/2014] [Indexed: 11/28/2022]
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32
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Constantin M, Bucatariu S, Harabagiu V, Ascenzi P, Fundueanu G. Do cyclodextrins bound to dextran microspheres act as sustained delivery systems of drugs? Int J Pharm 2014; 469:1-9. [PMID: 24726631 DOI: 10.1016/j.ijpharm.2014.04.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/01/2014] [Accepted: 04/05/2014] [Indexed: 10/25/2022]
Abstract
The use of cyclodextrins (CDs) for controlled delivery of drugs is largely presented in the literature. However, the question of whether CDs themselves linked to a polymeric network are able to sustain the release of drugs still persists. Here, CD immobilization within dextran microspheres is reported, and CD-dextran complexes were packed in a glass column and then, the retention time of different drugs and drug model compounds was determined by liquid chromatography. The release profiles of drugs and of drug model compounds (indole, 3-nitrophenol, p-hydroxybenzoic acid, diclofenac), characterized by different values of the retention time (high, moderate or low), were investigated. The release rates were quite high even for drugs that exhibit very high retention time (high association equilibrium constant). Moreover, the volume of the release fluid strongly influences the rate of drug release. As a whole, "the sink conditions" must be continuously maintained, since at each drug concentration in the release medium, equilibrium occurs between the free and the CD-bound drug.
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Affiliation(s)
- Marieta Constantin
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, Iassy 700487, Romania
| | - Sanda Bucatariu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, Iassy 700487, Romania
| | - Valeria Harabagiu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, Iassy 700487, Romania
| | - Paolo Ascenzi
- Interdepartmental Laboratory for Electron Microscopy, University Roma Tre, Roma I-00146, Italy
| | - Gheorghe Fundueanu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, Iassy 700487, Romania.
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Kettel MJ, Schaefer K, Groll J, Moeller M. Nanogels with high active β-cyclodextrin content as physical coating system with sustained release properties. ACS APPLIED MATERIALS & INTERFACES 2014; 6:2300-2311. [PMID: 24533699 DOI: 10.1021/am404126r] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present the application of nanogels with high functional β-cyclodextrin (β-CD) content as new and versatile method for the modification and protection of textiles. The complexation potential of covalently embedded β-CD in nanogels is demonstrated for the common insecticide permethrin in aqueous environment. It is shown that permethrin containing β-CD nanogels can be applied easily, homogeneously and safely on keratin fibers like wool fabrics and human hairs. The permethrin concentration on fibers is directly controlled by the permethrin content in nanogels. We tested the permanence of permethrin on treated fibers with regard to washing and UV fastness. Our results show that permethrin complexed in nanogels is removed from the textile during washing, but that the complexation of permethrin by β-CD domains in the nanogels protects the active ingredient from UV degradation. Bioassay tests against the larvae of Tineola bisselliella and Anthrenocerus australis show that the activity of the ingredients does not decrease after complexation in β-CD gels and it results in protection of the wool fibers against degradation by the insect larvae.
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Affiliation(s)
- Markus J Kettel
- DWI-Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University , Forckenbeckstr. 50, 52056 Aachen, Germany
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De Santis S, Diociaiuti M, Cametti C, Masci G. Hyaluronic acid and alginate covalent nanogels by template cross-linking in polyion complex micelle nanoreactors. Carbohydr Polym 2014; 101:96-103. [DOI: 10.1016/j.carbpol.2013.09.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 08/25/2013] [Accepted: 09/13/2013] [Indexed: 10/26/2022]
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Machín R, Isasi JR, Vélaz I. Hydrogel matrices containing single and mixed natural cyclodextrins. Mechanisms of drug release. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.08.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Concheiro A, Alvarez-Lorenzo C. Chemically cross-linked and grafted cyclodextrin hydrogels: from nanostructures to drug-eluting medical devices. Adv Drug Deliv Rev 2013; 65:1188-203. [PMID: 23631979 DOI: 10.1016/j.addr.2013.04.015] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 04/15/2013] [Accepted: 04/22/2013] [Indexed: 12/13/2022]
Abstract
The unique ability of cyclodextrins (CDs) to form inclusion complexes can be transmitted to polymeric networks in which CDs are chemically grafted or cross-linked. Combination of CDs and hydrogels in a single material leads to synergic properties: the hydrophilic network enhances biocompatibility and prevents dilution in the physiological medium increasing the stability of the inclusion complexes, while CDs finely tune the mechanical features and the stimuli-responsiveness and provide affinity-based regulation of drug loading and release. Therefore, CD-functionalized materials are opening new perspectives in pharmacotherapy, emerging as advanced delivery systems (DDS) for hydrophobic and hydrophilic drugs to be administered via almost any route. Medical devices (catheters, prosthesis, vascular grafts, bone implants) can also benefit from surface grafting or thermofixation of CDs. The present review focuses on the approaches tested to synthesize nano- to macro-size covalently cross-linked CD networks: i) direct cross-linking through condensation with di- or multifunctional reagents, ii) copolymerization of CD derivatives with acrylic/vinyl monomers, and iii) grafting of CDs to preformed medical devices. Examples of the advantages of having the CDs chemically bound among themselves and to substrates are provided and their applicability in therapeutics discussed.
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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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Moya-Ortega MD, Alves TFG, Alvarez-Lorenzo C, Concheiro A, Stefánsson E, Thorsteinsdóttir M, Loftsson T. Dexamethasone eye drops containing γ-cyclodextrin-based nanogels. Int J Pharm 2012; 441:507-15. [PMID: 23149258 DOI: 10.1016/j.ijpharm.2012.11.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 11/02/2012] [Accepted: 11/03/2012] [Indexed: 11/17/2022]
Abstract
Sustained release aqueous eye drops of dexamethasone, based on cyclodextrin (CD) nanogels, were designed and tested in vivo. γCD units were cross-linked in the form of nanogels by means of an emulsification/solvent evaporation process. The composition of the nanogels was optimized with regard to drug loading and release rate. The eye drops consisted of an aqueous solution of dexamethasone in 2-hydroxypropyl-γ-cyclodextrin (HPγCD) medium containing γCD nanogels. The nanogel eye drops (containing 25 mg dexamethasone per ml) were tested in rabbits and compared to the commercially available product Maxidex(®) (suspension with 1 mg dexamethasone per ml). One drop administration of the nanogel eye drops resulted in nearly constant dexamethasone concentration for at least 6h in the tear fluid (mean concentration±SD=295±59 μg/ml) whereas the concentration after administration of Maxidex(®) fell rapidly from 9.72±3.45 μg/ml 1 h after application to 3.76±3.26 μg/ml 3 h after application. The maximum dexamethasone concentration in the aqueous humor (2 h after application) was 136±24 mg/ml after application of the nanogel eye drops, and only 44.4±7.8 μg/ml after application of Maxidex(®). The dexamethasone nanogel eye drops were well tolerated with no macroscopic signs of irritation, redness or other toxic effects.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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Siripornnoppakhun W, Niamnont N, Krumsri A, Tumcharern G, Vilaivan T, Rashatasakhon P, Thayumanavan S, Sukwattanasinitt M. Inclusion Complexes between Amphiphilic Phenyleneethynylene Fluorophores and Cyclodextrins in Aqueous Media. J Phys Chem B 2012; 116:12268-74. [DOI: 10.1021/jp3057652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Nakorn Niamnont
- Department
of Chemistry, Faculty
of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
| | - Akachai Krumsri
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - Gamolwan Tumcharern
- Thailand National Nanotechnology
Center, National Science and Technology Development Agency, Patumthanee 12120, Thailand
| | - Tirayut Vilaivan
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - Paitoon Rashatasakhon
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, Massachusetts
01003, United States
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Kettel MJ, Hildebrandt H, Schaefer K, Moeller M, Groll J. Tenside-free preparation of nanogels with high functional β-cyclodextrin content. ACS NANO 2012; 6:8087-8093. [PMID: 22862562 DOI: 10.1021/nn302694q] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present the preparation of ultrafine (R(h), 50 -150 nm) nanogels through tenside-free condensation of reactive prepolymers with β-cyclodextrin (β-CD) in water. These nanogels possess a maximum content of 60 wt % functional β-CD that can form inclusion complexes as demonstrated by dye sorption with phenolphthalein. Aside of this extremely high uptake capacity to hydrophobic molecules, the nanogels also show good adhesion to surfaces in homogeneous distribution with size of R(h) of 25 nm under dry conditions.
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Affiliation(s)
- Markus J Kettel
- DWI at RWTH Aachen eV and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Pauwelsstrasse 8, 52056 Aachen, Germany
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Moya-Ortega MD, Alvarez-Lorenzo C, Concheiro A, Loftsson T. Cyclodextrin-based nanogels for pharmaceutical and biomedical applications. Int J Pharm 2012; 428:152-63. [PMID: 22388054 DOI: 10.1016/j.ijpharm.2012.02.038] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/18/2022]
Abstract
Hydrophilic nanogels combine the advantages of hydrogels with certain advantages that are inherent in their nanoscale size. Similar to macrogels, nanogels can contain and protect drugs and regulate their release by incorporating high-affinity functional groups, stimuli-responsive conformations and biodegradable bonds into the polymer network. Similar to nanoparticles, nanogels can easily be administered in liquid form for parenteral drug delivery. The nanoscale size of nanogels gives them a high specific surface area that is available for further bioconjugation of active targeting agents. Biodistribution and drug release can be modulated through size adjustments. The incorporation of hydrophilic cyclodextrin (CD) moieties into the polymeric network of the nanogels provides them with a drug loading and release mechanism that is based on the formation of inclusion complexes without decreasing the hydrophilicity of the network. The covalent attachment of CD molecules to the chemically crosslinked networks may enable the CDs to display fully their ability to form complexes, while simultaneously preventing drug release upon media dilution. The preparation, characterization and advantages for pharmaceutical and biomedical applications of CD-based nanogels are reviewed in this article.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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Fülöp Z, Kurkov S, Nielsen T, Larsen K, Loftsson T. Self-assembly of cyclodextrins: formation of cyclodextrin polymer based nanoparticles. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50032-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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