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Ahmed B, Jaiswal S, Naryal S, Shah RM, Alany RG, Kaur IP. In situ gelling systems for ocular drug delivery. J Control Release 2024; 371:67-84. [PMID: 38768662 DOI: 10.1016/j.jconrel.2024.05.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 05/12/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
In situ gelling systems represent a burgeoning paradigm in ocular drug administration, addressing intrinsic challenges posed by extant ocular formulations, such as compromised bioavailability and constraints in traversing the corneal barrier. This systematic review endeavours to comprehensively examine the contemporary landscape of research in this domain, focusing on the nuanced capabilities of in situ gelling systems to optimize drug delivery and enhance therapeutic outcomes, without much technological complexity. Employing a meticulous search strategy across diverse databases for publications and patents spanning the years 2015 to 2023 a total of 26 research papers and 14 patents meeting stringent inclusion criteria were identified. Synthesizing the collective insights derived from these investigations, it becomes evident that in situ gelling systems confer an ability to protract the residence time of formulations or active pharmaceutical ingredients (APIs) within the ocular milieu. This sustained presence engenders extended drug release kinetics, thereby fostering improved patient compliance and mitigating the proclivity for side effects attendant to frequent dosing. These salutary effects extend to diminished systemic drug absorption, augmented ocular bioavailability, and the prospect of reduced dosing frequencies, thereby amplifying patient adherence to therapeutic regimens. Intriguingly, the protective attributes of in situ gelling systems extend to the establishment of an ocular surface barrier, thereby abating the susceptibility to infections and inflammatory responses. In summation, this review underscores the auspicious potential of in situ gelling systems as a transformative approach to advancing ocular drug delivery, warranting sustained research endeavours and developmental initiatives for the betterment of global patient outcomes.
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Affiliation(s)
- Bakr Ahmed
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Srishty Jaiswal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Srishti Naryal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Rohan M Shah
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia; School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora West, VIC 3038, Australia
| | - Raid G Alany
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, Department of Pharmacy, Kingston University London, Kingston upon Thames, UK; School of Pharmacy, University of Auckland, Auckland, New Zealand
| | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India.
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2
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Kumar P, Kumar B, Gihar S, Kumar D. Review on emerging trends and challenges in the modification of xanthan gum for various applications. Carbohydr Res 2024; 538:109070. [PMID: 38460462 DOI: 10.1016/j.carres.2024.109070] [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: 12/19/2023] [Revised: 02/15/2024] [Accepted: 02/24/2024] [Indexed: 03/11/2024]
Abstract
This review explores the realm of structural modifications and broad spectrum of their potential applications, with a special focus on the synthesis of xanthan gum derivatives through graft copolymerization methods. It delves into the creation of these derivatives by attaching functional groups (-OH and -COOH) to xanthan gum, utilizing a variety of initiators for grafting, and examining their diverse applications, especially in the areas of food packaging, pharmaceuticals, wastewater treatment, and antimicrobial activities. Xanthan gum is a biocompatible, biodegradable, less toxic, bioactive, and cost-effective natural polymer derived from Xanthomonas species. The native properties of xanthan gum can be improved by cross-linking, grafting, curing, blending, and various modification techniques. Grafted xanthan gum has excellent biodegradability, metal binding, dye adsorption, immunological properties, and wound healing ability. Owing to its remarkable properties, such as biocompatibility and its ability to form gels resembling the extracellular matrix of tissues, modified xanthan gum finds extensive utility across biomedicine, engineering, and the food industry. Furthermore, the review also covers various modified derivatives of xanthan gum that exhibit excellent biodegradability, metal binding, dye adsorption, immunological properties, and wound healing abilities. These applications could serve as important resources for a wide range of industries in future product development.
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Affiliation(s)
- Pramendra Kumar
- Department of Applied Chemistry, M. J.P. Rohilkhand University, Bareilly, 243006, U.P, India.
| | - Brijesh Kumar
- Department of Applied Chemistry, M. J.P. Rohilkhand University, Bareilly, 243006, U.P, India
| | - Sachin Gihar
- Department of Applied Chemistry, M. J.P. Rohilkhand University, Bareilly, 243006, U.P, India
| | - Deepak Kumar
- Department of Applied Chemistry, M. J.P. Rohilkhand University, Bareilly, 243006, U.P, India
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3
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Parashar R, Vyas A, Sah AK, Hemnani N, Thangaraju P, Suresh PK. Recent Updates on Nanocarriers for Drug Delivery in Posterior Segment Diseases with Emphasis on Diabetic Retinopathy. Curr Diabetes Rev 2024; 20:e171023222282. [PMID: 37855359 DOI: 10.2174/0115733998240053231009060654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/24/2023] [Accepted: 07/18/2023] [Indexed: 10/20/2023]
Abstract
In recent years, various conventional formulations have been used for the treatment and/or management of ocular medical conditions. Diabetic retinopathy, a microvascular disease of the retina, remains the leading cause of visual disability in patients with diabetes. Currently, for treating diabetic retinopathy, only intraocular, intravitreal, periocular injections, and laser photocoagulation are widely used. Frequent administration of these drugs by injections may lead to serious complications, including retinal detachment and endophthalmitis. Although conventional ophthalmic formulations like eye drops, ointments, and suspensions are available globally, these formulations fail to achieve optimum drug therapeutic profile due to immediate nasolacrimal drainage, rapid tearing, and systemic tearing toxicity of the drugs. To achieve better therapeutic outcomes with prolonged release of the therapeutic agents, nano-drug delivery materials have been investigated. These nanocarriers include nanoparticles, solid lipid nanoparticles (SLN), nanostructured lipid carriers (NLC), dendrimers, nanofibers, in-situ gel, vesicular carriers, niosomes, and mucoadhesive systems, among others. The nanocarriers carry the potential benefits of site-specific delivery and controlled and sustained drug release profile. In the present article, various nanomaterials explored for treating diabetic retinopathy are reviewed.
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Affiliation(s)
- Ravi Parashar
- University Institute of Pharmacy, Faculty of Technology, Pt. Ravishankar Shukla University, Raipur, 492010, (C.G.), India
| | - Amber Vyas
- University Institute of Pharmacy, Faculty of Technology, Pt. Ravishankar Shukla University, Raipur, 492010, (C.G.), India
| | - Abhishek K Sah
- Department of Pharmacy, Shri Govindram Seksariya Institute of Technology & Science (SGSITS), 23-Park Road, Indore, 452003 (M.P.), India
| | - Narayan Hemnani
- University Institute of Pharmacy, Faculty of Technology, Pt. Ravishankar Shukla University, Raipur, 492010, (C.G.), India
| | | | - Preeti K Suresh
- University Institute of Pharmacy, Faculty of Technology, Pt. Ravishankar Shukla University, Raipur, 492010, (C.G.), India
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4
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Arpa MD, Kesmen EE, Biltekin SN. Novel Sprayable Thermosensitive Benzydamine Hydrogels for Topical Application: Development, Characterization, and In Vitro Biological Activities. AAPS PharmSciTech 2023; 24:214. [PMID: 37848623 DOI: 10.1208/s12249-023-02674-w] [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: 07/07/2023] [Accepted: 10/03/2023] [Indexed: 10/19/2023] Open
Abstract
Benzydamine hydrochloride (BZD) having analgesic, anesthetic, and anti-inflammatory effects is used orally or topically in the treatment of disorders such as joint inflammation and muscle pain. Within the scope of this study, sprayable thermosensitive BZD hydrogels were developed using thermoresponsive poloxamers to avoid systemic side effects and to provide better compliance for topical administration. Also, hydroxypropyl methyl cellulose (HPMC) was employed to improve the mechanical strength and bioadhesive properties of the hydrogel. The addition of BZD generally decreased the viscosity of the formulations (p < 0.05), while increasing the gelation temperature (p < 0.05). The formulations that did not have any clogs or leaks in the nozzle of the bottle during the spraying process were considered lead formulations. To spray the formulations easily, it was found that the viscosity at RT should be less than 200 mPa·s, and their gelation temperature should be between 26 and 34°C. Increasing HPMC and poloxamer improved bioadhesion. The amount of HPMC and poloxamers did not cause a significant change in the release characteristics of the formulations (p > 0.05); the release profiles of BZD from the formulations were similar according to model-independent kinetic (f2 > 50). HPMC and poloxamers had important roles in the accumulation of BZD in the skin. In vitro biological activity studies demonstrated that the formulations presented their anti-inflammatory activity with TNF-α inhibition but did not have any effect on the inhibition of COX enzymes as expected. As a result, thermosensitive hydrogels containing BZD might be an appropriate alternative, providing an advantage in terms of easier application compared to conventional gels.
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Affiliation(s)
- Muhammet Davut Arpa
- Department of Pharmaceutical Technology, School of Pharmacy, Istanbul Medipol University, 34815, Istanbul, Turkey.
| | - Ebrar Elif Kesmen
- Department of Pharmaceutical Technology, School of Pharmacy, Istanbul Medipol University, 34815, Istanbul, Turkey
| | - Sevde Nur Biltekin
- Department of Microbiology, School of Pharmacy, Istanbul Medipol University, 34815, Istanbul, Turkey
- Department of Molecular Biology and Genetics, Institute of Graduated Studies in Science, Istanbul University, 34116, Istanbul, Turkey
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5
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Makabenta JMV, Nabawy A, Chattopadhyay AN, Jeon T, Park J, Lo PC, Nosovitski S, Huang R, Li CH, Jiang M, Rotello VM. Antimicrobial polymer-loaded hydrogels for the topical treatment of multidrug-resistant wound biofilm infections. J Control Release 2023; 362:513-523. [PMID: 37666301 PMCID: PMC10591942 DOI: 10.1016/j.jconrel.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Integration of antimicrobial polymeric nanoparticles into hydrogel materials presents a promising strategy to address multidrug-resistant biofilm infections. Here we report an injectable hydrogel loaded with engineered cationic antimicrobial polymeric nanoparticles (PNPs) for the effective topical treatment of severe wound biofilm infections. The PNPs demonstrated biofilm penetration and disruption, resulting in the eradication of resistant and persister cells that reside within the biofilm. Significantly, PNPs did not elicit resistance development even after multiple exposures to sub-therapeutic doses. In vitro studies showed PNPs significantly reduced prolonged inflammation due to infection and promoted fibroblast migration. These PNPs were then incorporated into Poloxamer 407 (P407) hydrogels and utilized as an inert carrier for PNPs to provide a controlled and sustained topical release of the antimicrobial nanoparticles at the wound area. In vivo studies using a mature (4-day) wound biofilm infection in a murine model mimicking severe human wound infections demonstrated provided 99% bacterial biofilm clearance and significantly enhanced wound healing. Overall, this work demonstrated the efficacy and selectivity of the antimicrobial polymer-loaded hydrogel platform as a topical treatment for difficult-to-treat wound biofilm infections.
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Affiliation(s)
- Jessa Marie V Makabenta
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Taewon Jeon
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Pui Chi Lo
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Stas Nosovitski
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Rui Huang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Mingdi Jiang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
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Lupu A, Gradinaru LM, Rusu D, Bercea M. Self-Healing of Pluronic® F127 Hydrogels in the Presence of Various Polysaccharides. Gels 2023; 9:719. [PMID: 37754400 PMCID: PMC10528848 DOI: 10.3390/gels9090719] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/28/2023] Open
Abstract
Thermoresponsive Pluronic® F127 (PL) gels in water were investigated through rheological tests in different shear conditions. The gel strength was tuned with the addition of 1% polysaccharide solution. In the presence of xanthan gum (XG), the viscoelastic behavior of PL-based hydrogels was improved in aqueous environment, but the rheological behavior was less changed with the addition of XG in PBS solutions, whereas in the presence of 0.1 M NaCl, the viscoelastic parameters decreased. PL micellar networks exhibited a self-healing ability, recovering their initial structure after applying cycles of high strain. The rheological characteristics of the PL hydrogel changed with the addition of 1% polysaccharides (xanthan gum, alginate, κ-carrageenan, gellan, or chitosan). PL/polysaccharide systems form temperature-responsive hydrogels with shear thinning behavior, yield stress, and self-healing ability, being considered a versatile platform for injectable biomaterials or bioinks. Thus, in the presence of xanthan gum in aqueous medium, the gel strength was improved after applying a high strain (the values of elastic modulus increased). The other investigated natural polymers induced specific self-healing behaviors. Good performances were observed with the addition of gellan gum, alginate, and κ-carrageenan, but for high values of strain, the ability to recover the initial structure decreased. A modest self-healing behavior was observed in the presence of chitosan and xanthan gum dissolved in NaCl solution.
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Affiliation(s)
- Alexandra Lupu
- “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.M.G.); (D.R.)
| | | | | | - Maria Bercea
- “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.M.G.); (D.R.)
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7
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Cojocaru E, Ghitman J, Pircalabioru GG, Zaharia A, Iovu H, Sarbu A. Electrospun/3D-Printed Bicomponent Scaffold Co-Loaded with a Prodrug and a Drug with Antibacterial and Immunomodulatory Properties. Polymers (Basel) 2023; 15:2854. [PMID: 37447499 DOI: 10.3390/polym15132854] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
This work reports the construction of a bicomponent scaffold co-loaded with both a prodrug and a drug (BiFp@Ht) as an efficient platform for wound dressing, by combining the electrospinning and 3D-printing technologies. The outer component consisted of a chitosan/polyethylene oxide-electrospun membrane loaded with the indomethacin-polyethylene glycol-indomethacin prodrug (Fp) and served as a support for printing the inner component, a gelatin methacryloyl/sodium alginate hydrogel loaded with tetracycline hydrochloride (Ht). The different architectural characteristics of the electrospun and 3D-printed layers were very well highlighted in a morphological analysis performed by Scanning Electron Microscopy (SEM). In vitro release profile studies demonstrated that both Fp and Ht layers were capable to release the loaded therapeutics in a controlled and sustained manner. According to a quantitative in vitro biological assessment, the bicomponent BiFp@Ht scaffold showed a good biocompatibility and no cytotoxic effect on HeLa cell cultures, while the highest proliferation level was noted in the case of HeLa cells seeded onto an Fp nanofibrous membrane. Furthermore, the BiFp@Ht scaffold presented an excellent antimicrobial activity against the E. coli and S. aureus bacterial strains, along with promising anti-inflammatory and proangiogenic activities, proving its potential to be used for wound dressing.
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Affiliation(s)
- Elena Cojocaru
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Jana Ghitman
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
- eBio-Hub Research Center, University Politehnica of Bucharest-CAMPUS, 6 Iuliu Maniu Boulevard, 061344 Bucharest, Romania
| | - Gratiela Gradisteanu Pircalabioru
- eBio-Hub Research Center, University Politehnica of Bucharest-CAMPUS, 6 Iuliu Maniu Boulevard, 061344 Bucharest, Romania
- Research Institute of the University of Bucharest (ICUB), University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
| | - Anamaria Zaharia
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
- eBio-Hub Research Center, University Politehnica of Bucharest-CAMPUS, 6 Iuliu Maniu Boulevard, 061344 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
| | - Andrei Sarbu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania
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Fang W, Yang M, Liu M, Jin Y, Wang Y, Yang R, Wang Y, Zhang K, Fu Q. Review on Additives in Hydrogels for 3D Bioprinting of Regenerative Medicine: From Mechanism to Methodology. Pharmaceutics 2023; 15:1700. [PMID: 37376148 PMCID: PMC10302687 DOI: 10.3390/pharmaceutics15061700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The regeneration of biological tissues in medicine is challenging, and 3D bioprinting offers an innovative way to create functional multicellular tissues. One common way in bioprinting is bioink, which is one type of the cell-loaded hydrogel. For clinical application, however, the bioprinting still suffers from satisfactory performance, e.g., in vascularization, effective antibacterial, immunomodulation, and regulation of collagen deposition. Many studies incorporated different bioactive materials into the 3D-printed scaffolds to optimize the bioprinting. Here, we reviewed a variety of additives added to the 3D bioprinting hydrogel. The underlying mechanisms and methodology for biological regeneration are important and will provide a useful basis for future research.
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Affiliation(s)
| | | | | | | | | | | | | | - Kaile Zhang
- Department of Urology, Affiliated Sixth People’s Hospital, Shanghai Jiaotong University, No. 600 Yi-Shan Road, Shanghai 200233, China; (W.F.); (M.Y.)
| | - Qiang Fu
- Department of Urology, Affiliated Sixth People’s Hospital, Shanghai Jiaotong University, No. 600 Yi-Shan Road, Shanghai 200233, China; (W.F.); (M.Y.)
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9
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Banerjee R, Kumar KJ, Kennedy JF. Structure and drug delivery relationship of acidic polysaccharides: A review. Int J Biol Macromol 2023:125092. [PMID: 37247706 DOI: 10.1016/j.ijbiomac.2023.125092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
Scientists from across the world are being inspired by recent development in polysaccharides and their use in medical administration. Due to their extraordinary physical, chemical, and biological characteristics, polysaccharides are excellent materials for use in medicine. Acidic polysaccharides, which include Pectin, Xanthan gum, Carrageenan, Alginate, and Glycosaminoglycan, are natural polymers with carboxyl groups that are being researched for their potential as drug delivery systems. Most publications do not discuss how the different polysaccharides interact structurally in terms of drug delivery, which limits the scope of their use. The purpose of this review is to inform readers about the structural activity correlations between acidic polysaccharides, their different modification process and effects of combination of various acidic polysaccharides which have been used in drug delivery systems and expanding their potential applications, and bringing new perspectives to the fore.
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Affiliation(s)
- Riya Banerjee
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India
| | - K Jayaram Kumar
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India.
| | - John F Kennedy
- Chembiotech Laboratories, Institute of Research and Development, Tenbury Wells, WR15 8FF, UK
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10
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Tambe SM, Jain DD, Hasmukh Mehta C, Ashwini T, Yogendra Nayak U, Amin PD. Hot-melt extruded in situ gelling systems (MeltDrops Technology): Formulation development, in silico modelling and in vivo studies. Eur J Pharm Biopharm 2023:S0939-6411(23)00122-4. [PMID: 37182553 DOI: 10.1016/j.ejpb.2023.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
In situ gelling systems (ISGS) can prolong retention time and bioavailability of ophthalmic solutions. The complexity and cost of ISGS avert their industrial scale-up and clinical implementation. In this study, we demonstrate novel application of hot-melt extrusion (HME) technology for continuous manufacturing of ISGS (MeltDrops Technology). Timolol maleate (TIM) and dorzolamide hydrochloride (DRZ) loaded MeltDrops were successfully developed using HME for glaucoma management, thereby resolving issues with batch manufacturing of ISGS, prolonging retention time thus improving bioavailability. The MeltDrops technology involves one-step, i.e., passing all the ingredients through an extruder at a screw speed between 20-50 rpm and barrel temperature of 80 °C. The comparative evaluation of MeltDrops and batch-processed ISGS demonstrated that MeltDrops exhibited better physical and chemical content uniformity. The extrusion temperature and screw speed were critical factors influencing content uniformity and properties of the MeltDrops. MeltDrops showed sustained drug release for >12 hours in vitro (TIM= 83.07%; DRZ = 60.43%, 12hours) versus marketed eyedrops. The developed MeltDrops followed Peppas-Sahlin model, combining Fickian diffusion and swelling processes. The in vivo study in New Zealand rabbits revealed superior effectiveness and safety of the MeltDrops as compared to the marketed eyedrops. Herein we conclude, MeltDrops would serve as a cutting-edge platform technology that can be used to manufacture various ISGS with one-step processability, cost-effectiveness, and improved product quality, which are otherwise processed by batch manufacturing that involves numerous complex processing steps.
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Affiliation(s)
- Srushti M Tambe
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Divya D Jain
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Chetan Hasmukh Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - T Ashwini
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Purnima D Amin
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India.
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11
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Gadhave D, Gupta A, Khot S, Tagalpallewar A, Kokare C. Nose-to-brain delivery of paliperidone palmitate poloxamer-guar gum nanogel: Formulation, optimization and pharmacological studies in rats. ANNALES PHARMACEUTIQUES FRANÇAISES 2023; 81:315-333. [PMID: 36037930 DOI: 10.1016/j.pharma.2022.08.010] [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: 03/24/2022] [Revised: 07/01/2022] [Accepted: 08/23/2022] [Indexed: 10/15/2022]
Abstract
Oral delivery of paliperidone palmitate (PPD), a potent antipsychotic agent, has been reported with a potential risk of very serious drug-induced adverse events such as tachycardia, hyperprolactinemia, sexual dysfunction, and neutropenia. Alternatively, the potential of nasal delivery has also been explored to treat CNS complications by delivering the medicines directly to the brain bypassing the blood-brain barrier. Hence, the objectives of current work were to formulate, design, optimize, and investigate the therapeutic potency of PPD-loaded intranasal in-situ gel (PPGISG) in the treatment of schizophrenia. PPD-nanoemulsion (PNE) was fabricated using water titration technique, was further optimized via Box-Behnken design. Furthermore, the optimized PNE was evaluated for parameters such as globule size, polydispersity index, zeta potential, and % entrapment efficiency were found to be 21.44±1.58nm, 0.268±0.02, -25.56±1.6mV, and 99.89±0.25%, respectively. PNE was further converted to PPGISG utilizing two polymers, poloxamer, and guar gum. Simultaneously, ex-vivo permeation for PNE, PPGISG, and PPD-suspension was found to be 211.40±4.8, 297.89±3.9 and 98.66±1.6μg/cm2, respectively. While PPGISG nanoparticles showed 1.58 and 5.65-folds more Jss than PNE and PPD-suspension. Behavioral studies confirmed that no extrapyramidal symptoms were observed in experimental animals post intranasal administration. Finally, the outcomes of the in-vivo hemato-compatibility study proved that intranasal formulation did not cause any alteration in leukocytes, RBCs, and neutrophils count. Therefore, intranasal delivery of PPGISG can be considered a novel tool for the safe delivery of PPD in schizophrenic patients.
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Affiliation(s)
- D Gadhave
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India; Department of Pharmaceutics, Dattakala Shikshan Sanstha's, Dattakala College of Pharmacy (Affiliated to Savitribai Phule Pune University), Swami Chincholi, Daund, Pune, 413130, Maharashtra, India.
| | - A Gupta
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
| | - S Khot
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
| | - A Tagalpallewar
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India; School of Pharmacy, Department of Pharmaceutics, MIT World Peace University, Pune, 411038, Maharashtra, India
| | - C Kokare
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
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12
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Bellotti D, D’Accolti M, Pula W, Huang N, Simeliere F, Caselli E, Esposito E, Remelli M. Calcitermin-Loaded Smart Gels Activity against Candida albicans: A Preliminary In Vitro Study. Gels 2023; 9:gels9020165. [PMID: 36826335 PMCID: PMC9957098 DOI: 10.3390/gels9020165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Calcitermin is an antimicrobial peptide of 15 amino acids found in human nasal fluid characterized by antifungal and antibacterial properties. Candida albicans is the most common human fungal pathogen affecting many tissues, such as vaginal mucosa. In this study a formulation suitable for calcitermin administration on vaginal mucosa was developed for the treatment of fungal infections. To favor topical application, mucosal adhesion, and permanence, gels based on poloxamer 407 and xanthan gum were designed and compared with regard to their rheological behavior, erosion, and leakage. The selected gel was loaded with calcitermin, whose release kinetic was evaluated in vitro by Franz cells. An antifungal activity assay was conducted to assess the calcitermin anticandidal potential and the effect of its inclusion in the selected gel. The rheological study revealed the elastic and viscous moduli behavior as a function of poloxamer 407 and xanthan gum concentration. Xanthan gum presence decreased the transition temperature of the gel, while prolonging its erosion and leakage. Particularly, poloxamer 407, 18% and xanthan gum 0.4% were chosen. The calcitermin loading in the selected gel resulted in a transparent and homogeneous formulation and in a 4-fold decrease of the release rate with respect to the calcitermin solution, as evidenced by Franz cell study. The anticandidal activity tests demonstrated that calcitermin-loaded gel was more active against Candida albicans with respect to the peptide solution.
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Affiliation(s)
- Denise Bellotti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Maria D’Accolti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Walter Pula
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Nicolas Huang
- Institut Galien Paris-Saclay (CNRS UMR 8612), Faculté de Pharmacie, Bâtiment Henri Moissan, Université Paris-Saclay, 91400 Orsay, France
| | - Fanny Simeliere
- Institut Galien Paris-Saclay (CNRS UMR 8612), Faculté de Pharmacie, Bâtiment Henri Moissan, Université Paris-Saclay, 91400 Orsay, France
| | - Elisabetta Caselli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Correspondence: (E.C.); (E.E.)
| | - Elisabetta Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Correspondence: (E.C.); (E.E.)
| | - Maurizio Remelli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
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13
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Dewan M, Adhikari A, Dutta K, Chattopadhyay D. Impact of Poly (Vinyl Alcohol) on The Thermogelation Property and Drug Release Profile of Ophthalmic Formulations Based on Poloxamer 407. ChemistrySelect 2023. [DOI: 10.1002/slct.202203528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Mitali Dewan
- Department of Polymer Science & Technology University of Calcutta 92 A.P.C. Road Kolkata 700009 India
- Department of Chemistry Shahid Matangini Hazra Govt.General Degree College for Women Chakshrikrishnapur Kulberia, Tamluk, Purba Medinipur West Bengal -721649 India
| | - Arpita Adhikari
- Department of Polymer Science & Technology University of Calcutta 92 A.P.C. Road Kolkata 700009 India
| | - Koushik Dutta
- Department of Polymer Science & Technology University of Calcutta 92 A.P.C. Road Kolkata 700009 India
| | - Dipankar Chattopadhyay
- Department of Polymer Science & Technology University of Calcutta 92 A.P.C. Road Kolkata 700009 India
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14
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Exploration of hemocompatibility and intratumoral accumulation of paclitaxel after loco-regional administration of thermoresponsive hydrogel composed of poloxamer and xanthan gum: An application to dose-dense chemotherapy. Int J Biol Macromol 2023; 226:746-759. [PMID: 36495991 DOI: 10.1016/j.ijbiomac.2022.11.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/11/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
Although paclitaxel is a front-line chemotherapeutic agent for the treatment of metastatic breast cancer, its intravenous therapy produces deleterious adverse effects. In an attempt to address the issue, the present study aimed to develop a paclitaxel loaded thermosensitive/thermoresponsive hydrogel (PTXNp-TGel) for loco-regional administration to breast tumors to provide dose-dense chemotherapy. Poloxamer and xanthan gum were used to prepare TGel by the cold method. In vitro and in vivo performance of PTXNp-TGel was compared with TGel, pure drug loaded TGel (PTX-TGel) and marketed formulation, Taxol®. The formulated PTXNp-TGel showed acceptable gelation temperature and time (37 °C and 57 s), lower viscosity at room temperature and higher viscosity at body temperature to support sol-gel transition with increasing temperature, and sustained drug release up to 21 days. Additionally, PTXNp-TGel showed negligible hemolytic toxicity as compared to PTX-TGel and Taxol®. Intratumoral administration of PTXNp-TGel produced significantly higher antitumor activity as indicated by lowest relative tumor volume (1.50) and relative antitumor proliferation rate (27.71 %) in comparison with PTX-TGel, Taxol®, and PTXNp (p < 0.05). Finally, insignificant body weight loss during the experimental period, lack of hematotoxicity, nephrotoxicity, and hepatotoxicity imply improved therapeutic performance of the locally administrated dose-dense therapy of PTXNp-TGel as compared to Taxol®.
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15
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Račić A, Krajišnik D. Biopolymers in Mucoadhesive Eye Drops for Treatment of Dry Eye and Allergic Conditions: Application and Perspectives. Pharmaceutics 2023; 15:pharmaceutics15020470. [PMID: 36839790 PMCID: PMC9962975 DOI: 10.3390/pharmaceutics15020470] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/15/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Dry eye syndrome and allergic conjunctivitis are the most common inflammatory disorders of the eye surface. Although eye drops are the most usual prescribed dosage form, they are characterized by low ocular availability due to numerous barrier mechanisms of the eye. The use of biopolymers in liquid ophthalmic preparations has numerous advantages, such as increasing the viscosity of the tear film, exhibiting bioadhesive properties, and resisting the drainage system, leading to prolonged retention of the preparation at the site of application, and improvement of the therapeutic effect. Some mucoadhesive polymers are multifunctional excipients, so they act by different mechanisms on increasing the permeability of the cornea. Additionally, many hydrophilic biopolymers can also represent the active substances in artificial tear preparations, due to their lubrication and moisturizing effect. With the modification of conventional ophthalmic preparations, there is a need for development of new methods for their characterization. Numerous methods for the assessment of mucoadhesiveness have been suggested by the literature. This review gives an overview related to the development of mucoadhesive liquid ophthalmic formulations for the treatment of dry eye and allergic conditions.
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Affiliation(s)
- Anđelka Račić
- Department of Pharmacy, University of Banja Luka-Faculty of Medicine, Save Mrkalja 14, 78000 Banja Luka, Bosnia and Herzegovina
| | - Danina Krajišnik
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade-Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
- Correspondence: ; Tel.: +381-11-395-1359
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16
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Baig MS, Haque MA, Konatham TKR, Mohammad BD, Yahya BA, Saffiruddin SS, Siddiqui FA, Khan SL. Recent advancements on hyperthermia driven controlled drug delivery from nanotherapeutics. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2022; 16:RADDF-EPUB-126101. [PMID: 36056855 DOI: 10.2174/2667387816666220902091043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/27/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
Previous reviews of the works on magnetic nanoparticles for hyperthermia induced treatment concentrated mostly on magnetic fluid hyperthermia (MFH) employing monometallic/metal oxide nanocomposites. In the literature, the word "hyperthermia" was also limited to the use of heat for medicinal purposes. A number of publications have recently been published demonstrating that magnetic nanoparticle-based hyperthermia may produce restricted high temperatures, resulting in the release of medicines that are either connected to the magnetic nanoparticles or encased in polymer matrices. In this debate, we propose broadening the concept of "hyperthermia" to encompass temperature-based treatment as well as magnetically controlled medication delivery. The review also addresses core-shell magnetic nanomaterials, particularly nanoshells made by stacked assembly, for the use of hyperthermia-based treatment and precise administration of drugs. The primary objective of this review article is to demonstrate how the combination of hyperthermia-induced therapy and 'on demand' drug release models may lead to effective applications in personalized medicine.
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Affiliation(s)
- Mirza Shahed Baig
- Y. B. Chavan College of Pharmacy, Aurangabad, Maharashtra, India-431001
| | - M Akiful Haque
- Department of Pharmaceutical Analysis, School of Pharmacy, Anurag University, Ghatkesar, Hyderabad, India-500088
| | - Teja Kumar Reddy Konatham
- Department of Pharmaceutical Analysis, School of Pharmacy, Anurag University, Ghatkesar, Hyderabad, India-500088
| | - Badrud Duza Mohammad
- G. R. T. Institute of Pharmaceutical Education and Research, GRT Mahalakshmi Nagar, Tiruttani, Tamil Nadu, India-631209
| | | | | | - Falak A Siddiqui
- MUP\'s College of Pharmacy (B Pharm), Degaon, Risod, Washim, Maharashtra, India-444504
| | - Sharuk L Khan
- MUP\'s College of Pharmacy (B Pharm), Degaon, Risod, Washim, Maharashtra, India-444504
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17
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Brambilla E, Locarno S, Gallo S, Orsini F, Pini C, Farronato M, Thomaz DV, Lenardi C, Piazzoni M, Tartaglia G. Poloxamer-Based Hydrogel as Drug Delivery System: How Polymeric Excipients Influence the Chemical-Physical Properties. Polymers (Basel) 2022; 14:polym14173624. [PMID: 36080699 PMCID: PMC9460339 DOI: 10.3390/polym14173624] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/25/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Thermogelling amphiphilic block copolymers have been widely investigated in the development of pharmaceutical drug carriers. In particular, thermosensitive gels based on poloxamer 407 (P407) have great potential for periodontal disease treatment, thanks to their ability to be liquid at room temperature and become viscous gels at body temperature. However, some problems, related to short in situ residence time, reduce their feasible clinical use. Thus, in order to improve the effective applicability of these materials, we studied how P407 thermogels are affected by the pH and by the inclusion of different hydrophilic polymers, used as excipients for increasing the gel stiffness. For this scope, a complete chemical-physical characterization of the synthesized gels is provided, in terms of determination of sol-gel transition temperature, viscosity and erosion degree. The data are correlated according to a statistical multivariate approach based on Principal Component Analysis and their mucoadhesion properties are also tested by Tapping mode-Atomic Force Microscopy (TM-AFM) imaging. Finally, we studied how the different P407 formulations are able to influence the release pathway of two antibacterial drugs (i.e., chlorhexidine digluconate and doxycycline hyclate) largely used in oral diseases.
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Affiliation(s)
- Elisa Brambilla
- Department of Pharmaceutical Sciences, Section of General and Organic Chemistry Section “A. Marchesini”, University of Milan, 20133 Milan, Italy
| | - Silvia Locarno
- Department of Physics “Aldo Pontremoli”, University of Milan, 20133 Milan, Italy
- Correspondence:
| | - Salvatore Gallo
- Department of Physics “Aldo Pontremoli”, University of Milan, 20133 Milan, Italy
| | - Francesco Orsini
- Department of Physics “Aldo Pontremoli”, University of Milan, 20133 Milan, Italy
| | - Carolina Pini
- Department of Physics “Aldo Pontremoli”, University of Milan, 20133 Milan, Italy
| | - Marco Farronato
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy
| | - Douglas Vieira Thomaz
- National Enterprise for NanoScience and NanoTechnology (NEST), Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Cristina Lenardi
- Department of Physics “Aldo Pontremoli”, University of Milan, 20133 Milan, Italy
| | - Marco Piazzoni
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy
| | - Gianluca Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy
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18
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Borghi-Pangoni FB, Bassi da Silva J, Dos Santos RS, Trevisan AP, Hott FCDC, Gonçalves MC, Kobayashi RK, de Souza MVF, Consolaro MEL, Castro-Hoshino LVD, Baesso ML, Bruschi ML. Thermosensitive gel based on cellulose derivative for topical delivery of propolis in acne treatment. Pharm Dev Technol 2022; 27:490-501. [PMID: 35587564 DOI: 10.1080/10837450.2022.2080221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Thermosensitive bioadhesive formulations can display increased retention time, skin permeation, and improve the topical therapy of many drugs. Acne is an inflammatory process triggered by several factors like the proliferation of the bacteria Propionibacterium acnes. Aiming a new alternative treatment with a natural source, propolis displays great potential due to its antibiotic, anti-inflammatory and healing properties. This study describes the development of bioadhesive thermoresponsive platform with cellulose derivatives and poloxamer 407 for propolis skin delivery. Propolis ethanolic extract (PES) was added to the formulations with sodium carboxymethylcellulose (CMC) or hydroxypropyl methylcellulose (HPMC) and poloxamer 407 (Polox). The formulations were characterized as rheology, bioadhesion and mechanical analysis. The selected formulations were investigated as in vitro propolis release, cytotoxicity, ex vivo skin permeation by Fourier Transform Infrared Photoacoustic Spectroscopy, and the activity against P. acnes. Formulations showed suitable sol-gel transition temperature, shear-thinning behavior and texture profile. CMC presence decreased cohesiveness and adhesiveness of formulations. Polox/HPMC/PES system displayed less cytotoxicity, modified propolis release governed by anomalous transport, skin permeation and activity against P. acnes. These results indicate important advantages in the topical treatment of acne and suggest a potential formulation for clinical evaluation.
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Affiliation(s)
- Fernanda Belincanta Borghi-Pangoni
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Jéssica Bassi da Silva
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Rafaela Said Dos Santos
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Ana Paula Trevisan
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Francyelle Carolyne de Castro Hott
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Marcelly Chue Gonçalves
- Laboratory of basic and applied bacteriology NIP3, Department of Microbiology, Center of Biological Sciences, State University of Londrina, 86057-970, Londrina, Parana, Brazil
| | - Renata KatsukoTakayama Kobayashi
- Laboratory of basic and applied bacteriology NIP3, Department of Microbiology, Center of Biological Sciences, State University of Londrina, 86057-970, Londrina, Parana, Brazil
| | - Maria Vitória Felipe de Souza
- Laboratory of Clinical Cytology, building B09, Department of Clinical Analysis, Center of Health Sciences, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Marcia Edilaine Lopes Consolaro
- Laboratory of Clinical Cytology, building B09, Department of Clinical Analysis, Center of Health Sciences, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | | | - Mauro Luciano Baesso
- Postgraduate Program in Physics, Department of Physics, State University of Maringa, 87020-900, Maringa, Parana, Brazil
| | - Marcos Luciano Bruschi
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, 87020-900, Maringa, Parana, Brazil
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19
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A Quinoxaline-Naphthaldehyde Conjugate for Colorimetric Determination of Copper Ion. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092908. [PMID: 35566259 PMCID: PMC9105850 DOI: 10.3390/molecules27092908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/20/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023]
Abstract
This work facilitates detection of bivalent copper ion by a simple Schiff base probe QNH based on a quinoxaline−naphthaldehyde framework. The detailed study in absorption spectroscopy and theoretical aspects and crystal study of the probe and probe−copper complex has been discussed. The detection limit of the probe in the presence of Cu2+ is 0.45 µM in HEPES−buffer/acetonitrile (3/7, v/v) medium for absorption study. The reversibility of the probe−copper complex has been investigated by EDTA. The selective visual detection of copper has been established also in gel form.
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20
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Sahu S, Sikdar Y, Bag R, Cerezo J, Cerón-Carrasco JP, Goswami S. Turn on Fluorescence Sensing of Zn2+ Based on Fused Isoindole-Imidazole Scaffold. Molecules 2022; 27:molecules27092859. [PMID: 35566211 PMCID: PMC9103770 DOI: 10.3390/molecules27092859] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 02/05/2023] Open
Abstract
Optical chemosensors caused a revolution in the field of sensing due to their high specificity, sensitivity, and fast detection features. Imidazole derivatives have offered promising features in the literature as they bear suitable donor/acceptor groups for the selective analytes in the skeleton. In this work, an isoindole-imidazole containing a Schiff base chemosensor (1-{3-[(2-Diethylamino-ethylimino)-methyl]-2-hydroxy-5-methyl-phenyl}-2H-imidazo[5,1-a]isoindole-3,5-dione) was designed and synthesized. The complete sensing phenomena have been investigated by means of UV-Vis, fluorescence, lifetime measurement, FT-IR, NMR and ESI-MS spectroscopic techniques. The optical properties of the synthesized ligand were investigated in 3:7 HEPES buffer:DMSO medium and found to be highly selective and sensitive toward Zn2+ ion through a fluorescence turn-on response with detection limit of 0.073 μm. Furthermore, this response is effective in gel form also. The competition studies reveal that the response of the probe for Zn2+ ion is unaffected by other relevant metal ions. The stoichiometric binding study was performed utilizing Job’s method which indicated a 1:1 sensor–Zn2+ ensemble. Computational calculations were performed to pinpoint the mechanism of sensing.
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Affiliation(s)
- Sutapa Sahu
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India; (S.S.); (R.B.)
| | - Yeasin Sikdar
- Department of Chemistry, The Bhawanipur Education Society College, 5, LalaLajpat Rai Sarani, Kolkata 700020, India;
| | - Riya Bag
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India; (S.S.); (R.B.)
| | - Javier Cerezo
- Departamento de Química, Universidad Autónoma de Madrid, 28049 Madrid, Spain;
| | - José P. Cerón-Carrasco
- Centro Universitario de la Defensa, Academia General del Aire, Universidad Politécnica de Cartagena, C/Coronel López Peña S/N, Santiago de La Ribera, 30720 Murcia, Spain
- Correspondence: (J.P.C.-C.); (S.G.)
| | - Sanchita Goswami
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India; (S.S.); (R.B.)
- Correspondence: (J.P.C.-C.); (S.G.)
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21
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Optimization of a floating poloxamer 407-based hydrogel using the Box-Behnken design: in vitro characterization and in vivo buoyancy evaluation for intravesical instillation. Eur J Pharm Sci 2021; 163:105885. [PMID: 34022408 DOI: 10.1016/j.ejps.2021.105885] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/20/2021] [Accepted: 05/14/2021] [Indexed: 12/30/2022]
Abstract
Intravesical instillation of a poloxamer 407 (PLX)-based hydrogel offers advantages such as thermo-sensitivity and sol-to-gel transition, but its utility is limited by urinary obstruction and insufficient bladder residence time. To overcome these obstacles, a floating PLX-hydrogel (FPH) was developed using sodium bicarbonate (BC) as a floating agent and hyaluronic acid (HA) as a gel strength modulator. The FPH composition was optimized using the Box-Behnken design with three independent variables: X1 [PLX concentration, 23.91%], X2 [BC concentration, 5.15%], and X3 [HA concentration, 3.49%]. The quadratic model was the best fit (desirability function, 0.623), resulting in response parameters of Y1 [floating time, 53.7 s], Y2 [gelation temperature gap, 20.3°C], and Y3 [duration time of gel, 396.7 min]. Rheological observations revealed the mechanical rigidity (storage modulus > loss modulus at elevated temperature) of the optimized FPH (phase transition temperature, 15.08°C). Gel erosion and drug release studies were performed using the gravimetric method; the remaining FPH fraction decreased exponentially with time, and gemcitabine release was biphasic and surface erosion-controlled. In vivo buoyancy was evaluated in rats using ultrasonography; these results were similar to those of the in vitro floating behavior. Thus, optimized FPH for intravesical instillation is a prospective option for bladder cancer treatment.
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22
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Formulation of olopatadine hydrochloride viscous eye drops - physicochemical, biopharmaceutical and efficacy assessment using in vitro and in vivo approaches. Eur J Pharm Sci 2021; 166:105906. [PMID: 34118409 DOI: 10.1016/j.ejps.2021.105906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/27/2021] [Accepted: 06/07/2021] [Indexed: 12/31/2022]
Abstract
The aim of this work was the formulation and the comprehensive evaluation of the viscous eye drops using vehicles containing medium chain chitosan (0.5% w/v), hydroxypropyl guar gum (0.25% w/v) and their combination as carriers for olopatadine (0.1% w/v). Physicochemical properties (appearance, clarity, pH, osmolality, viscosity and drug content) of the tested formulations were within acceptable ranges for the ophthalmic preparations, while DSC and FT-IR techniques demonstrated the compatibility between olopatadine and polymers. The drug permeability was successfully estimated in vitro using both HCE-T cell-based models (Model I and Model II) and the parallel artificial membrane permeability assay (PAMPA), considering the impact of chitosan as a permeation enhancer. The MTT cytotoxicity assay demonstrates that the tested formulations (diluted 10-fold in HBSS pH 5.5) were non-toxic and well tolerated. An ocular itch test on mice was carried out with the formulation containing the combination of polymers comparable with a commercially available olopatadine eye drops without viscosity enhancers. The tested eye drops produced a slightly higher anti-pruritic/analgesic-like effect than the commercial preparation. It could be assumed that the use of this viscous ophthalmic vehicle due to its advanced mucoadhesive properties and good safety profile is a feasible strategy to improve the efficacy of olopatadine.
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23
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Shi Q, Anishiya Chella Daisy E, GeqiangYang, Zhang J, Mickymaray S, Alfaiz F, Paramasivam A, Rajan M. Multifeatured guar gum armed drug delivery system for the delivery of ofloxacin drug to treat ophthalmic dieases. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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24
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Argenta DF, Bernardo BDC, Chamorro AF, Matos PR, Caon T. Thermosensitive hydrogels for vaginal delivery of secnidazole as an approach to overcome the systemic side-effects of oral preparations. Eur J Pharm Sci 2021; 159:105722. [PMID: 33482314 DOI: 10.1016/j.ejps.2021.105722] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 01/10/2023]
Abstract
Secnidazole (SEC) has been suggested as an alternative agent against Trichomonas vaginalis to overcome the adverse effects, antimicrobial resistance problems and poor adherence to the currently available therapy. Once no topical formulation may be found in the market until now, SEC was incorporated in thermosensitive bioadhesive systems to extend the contact time in the mucosa and to avoid a systemic drug disposition. Formulations containing 20% poloxamer 407, 1% poloxamer 188 and 1 or 2.5% chitosan showed suitable sol-gel transition temperature (> 30 °C), presenting a fast gelation time (100-115 s). Rheological, dynamic light scattering and infrared spectroscopy analysis suggested molecular interactions among polymers. Chitosan increased the mucoadhesion strength of the formulations. In addition, hydrogels showed a tendency to decrease the drug transport rate through mucosa when compared to the control. Mucin was also added onto mucosa for a more realistic simulation of permeability/retention. In the presence of this agent, hydrogels containing chitosan reduced the permeability/retention of the drug in approximately 2.0-fold when compared to the control. Therefore, the hydrogels presented suitable characteristics to remain in the vaginal environment, which would result in effective local treatment of trichomoniasis.
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Affiliation(s)
- Débora Fretes Argenta
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis - SC, 88040-900, Brazil
| | - Bianca da Costa Bernardo
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis - SC, 88040-900, Brazil
| | - Andrés Felipe Chamorro
- Department of Chemistry, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis - SC, 88040-900, Brazil
| | - Paulo Ricardo Matos
- Department of Civil Engineering, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis - SC, 88040-900, Brazil
| | - Thiago Caon
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis - SC, 88040-900, Brazil.
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25
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Rosseto HC, de Toledo LDAS, Said dos Santos R, de Francisco LMB, Vecchi CF, Esposito E, Cortesi R, Bruschi ML. Design of propolis-loaded film forming systems for topical administration: The effect of acrylic acid derivative polymers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114514] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Das B, Chattopadhyay D, Rana D. The gamut of perspectives, challenges, and recent trends for in situ hydrogels: a smart ophthalmic drug delivery vehicle. Biomater Sci 2020; 8:4665-4691. [PMID: 32760957 DOI: 10.1039/d0bm00532k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymers have a major role in the controlled delivery of pharmaceutical compounds to a targeted portion of the body. In this quest, a high priority research area is the targeted delivery of ophthalmic drugs to the interior regions of the eyes. Due to their complex anatomical/biochemical nature. This necessitates an advanced drug delivery cargo that could administer a therapeutic agent to the targeted location by evading various obstacles. The ongoing focus is to design an ophthalmic formulation by coupling it with a smart in situ forming polymeric hydrogel. These smart macromolecules have an array of unique theranostic properties and can utilize the in vivo biological parameters as a stimulus to change their macromolecular state from liquid to gel. The fast gelling hydrogel improves the corneal contact time, facilitates sustained drug release, resists the burst-out effect, and assists drug permeability to anterior regions. This review summarizes the rationale, scientific objectives, properties, and classification of the biologically important in situ hydrogels in the niche of ophthalmic drug delivery. The current trends and prospectives of the array of stimulus-responsive polymers, copolymers, and nanomaterials are discussed broadly. The crucial biointerfacial attributes with pros and cons are reviewed by investigating the effect of the nature of polymers as well as the ratio/percentage of additives and copolymers that influence the overall performance.
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Affiliation(s)
- Beauty Das
- Department of Polymer Science & Technology, University of Calcutta, 92 A.P.C. Road, Calcutta 700009, India.
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27
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Baino F, Kargozar S. Regulation of the Ocular Cell/Tissue Response by Implantable Biomaterials and Drug Delivery Systems. Bioengineering (Basel) 2020; 7:E65. [PMID: 32629806 PMCID: PMC7552708 DOI: 10.3390/bioengineering7030065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 01/31/2023] Open
Abstract
Therapeutic advancements in the treatment of various ocular diseases is often linked to the development of efficient drug delivery systems (DDSs), which would allow a sustained release while maintaining therapeutic drug levels in the target tissues. In this way, ocular tissue/cell response can be properly modulated and designed in order to produce a therapeutic effect. An ideal ocular DDS should encapsulate and release the appropriate drug concentration to the target tissue (therapeutic but non-toxic level) while preserving drug functionality. Furthermore, a constant release is usually preferred, keeping the initial burst to a minimum. Different materials are used, modified, and combined in order to achieve a sustained drug release in both the anterior and posterior segments of the eye. After giving a picture of the different strategies adopted for ocular drug release, this review article provides an overview of the biomaterials that are used as drug carriers in the eye, including micro- and nanospheres, liposomes, hydrogels, and multi-material implants; the advantages and limitations of these DDSs are discussed in reference to the major ocular applications.
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Affiliation(s)
- Francesco Baino
- Department of Applied Science and Technology, Institute of Materials Physics and Engineering, Politecnico di Torino, 10129 Turin, Italy
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
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28
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Natural Ergot Alkaloids in Ocular Pharmacotherapy: Known Molecules for Novel Nanoparticle-Based Delivery Systems. Biomolecules 2020; 10:biom10070980. [PMID: 32630018 PMCID: PMC7408209 DOI: 10.3390/biom10070980] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 02/06/2023] Open
Abstract
Several pharmacological properties are attributed to ergot alkaloids as a result of their antibacterial, antiproliferative, and antioxidant effects. Although known for their biomedical applications (e.g., for the treatment of glaucoma), most ergot alkaloids exhibit high toxicological risk and may even be lethal to humans and animals. Their pharmacological profile results from the structural similarity between lysergic acid-derived compounds and noradrenalin, dopamine, and serotonin neurotransmitters. To reduce their toxicological risk, while increasing their bioavailability, improved delivery systems were proposed. This review discusses the safety aspects of using ergot alkaloids in ocular pharmacology and proposes the development of lipid and polymeric nanoparticles for the topical administration of these drugs to enhance their therapeutic efficacy for the treatment of glaucoma.
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Dewan M, Dutta K, Rana D, Basu A, Bhattacharya A, Adhikary A, Chattopadhyay D. Effect of tamarind seed polysaccharide on thermogelation property and drug release profile of poloxamer 407-based ophthalmic formulation. NEW J CHEM 2020. [DOI: 10.1039/d0nj02767g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, the potential impact of tamarind seed polysaccharide (TSP) on the gelation nature and in vitro release of a particular drug, pilocarpine hydrochloride, from different poloxamer 407-based ophthalmic formulations were evaluated.
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Affiliation(s)
- Mitali Dewan
- Department of Polymer Science & Technology
- University of Calcutta
- Calcutta 700009
- India
- Department of Chemistry
| | - Koushik Dutta
- Department of Polymer Science & Technology
- University of Calcutta
- Calcutta 700009
- India
| | - Dipak Rana
- Department of Chemical and Biological Engineering
- Industrial Membrane Research Institute
- University of Ottawa
- 161 Louis Pasteur St
- Ottawa
| | - Arijita Basu
- Department of Polymer Science & Technology
- University of Calcutta
- Calcutta 700009
- India
| | - Amartya Bhattacharya
- Department of Polymer Science & Technology
- University of Calcutta
- Calcutta 700009
- India
| | - Arghya Adhikary
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, JD-2, Sector III
- Salt Lake
- Kolkata 700106
- India
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30
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Patel J, Maji B, Moorthy NSHN, Maiti S. Xanthan gum derivatives: review of synthesis, properties and diverse applications. RSC Adv 2020; 10:27103-27136. [PMID: 35515783 PMCID: PMC9055500 DOI: 10.1039/d0ra04366d] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/13/2020] [Indexed: 12/20/2022] Open
Abstract
Natural polysaccharides are well known for their biocompatibility, non-toxicity and biodegradability. These properties are also inherent to xanthan gum (XG), a microbial polysaccharide. This biomaterial has been extensively investigated as matrices for tablets, nanoparticles, microparticles, hydrogels, buccal/transdermal patches, tissue engineering scaffolds with different degrees of success. However, the native XG has its own limitations with regards to its susceptibility to microbial contamination, unusable viscosity, poor thermal and mechanical stability, and inadequate water solubility. Chemical modification can circumvent these limitations and tailor the properties of virgin XG to fulfill the unmet needs of drug delivery, tissue engineering, oil drilling and other applications. This review illustrates the process of chemical modification and/crosslinking of XG via etherification, esterification, acetalation, amidation, and oxidation. This review further describes the tailor-made properties of novel XG derivatives and their potential application in diverse fields. The physicomechanical modification and its impact on the properties of XG are also discussed. Overall, the recent developments on XG derivatives are very promising to progress further with polysaccharide research. Due to presence of hydroxy and carboxy functional groups, xanthan gum is amenable to various chemical modification for producing derivatives such as carboxymethyl xanthan and carboxymethyl hydroxypropyl xanthan with desirable properties for end use.![]()
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Affiliation(s)
- Jwala Patel
- Department of Pharmacy
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | - Biswajit Maji
- Department of Chemistry
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | | | - Sabyasachi Maiti
- Department of Pharmacy
- Indira Gandhi National Tribal University
- Amarkantak
- India
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31
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Dubashynskaya N, Poshina D, Raik S, Urtti A, Skorik YA. Polysaccharides in Ocular Drug Delivery. Pharmaceutics 2019; 12:E22. [PMID: 31878298 PMCID: PMC7023054 DOI: 10.3390/pharmaceutics12010022] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 02/07/2023] Open
Abstract
Polysaccharides, such as cellulose, hyaluronic acid, alginic acid, and chitosan, as well as polysaccharide derivatives, have been successfully used to augment drug delivery in the treatment of ocular pathologies. The properties of polysaccharides can be extensively modified to optimize ocular drug formulations and to obtain biocompatible and biodegradable drugs with improved bioavailability and tailored pharmacological effects. This review discusses the available polysaccharide choices for overcoming the difficulties associated with ocular drug delivery, and it explores the reasons for the dependence between the physicochemical properties of polysaccharide-based drug carriers and their efficiency in different formulations and applications. Polysaccharides will continue to be of great interest to researchers endeavoring to develop ophthalmic drugs with improved effectiveness and safety.
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Affiliation(s)
- Natallia Dubashynskaya
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
| | - Daria Poshina
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
| | - Sergei Raik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
| | - Arto Urtti
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
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32
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Orasugh JT, Dutta S, Das D, Pal C, Zaman A, Das S, Dutta K, Banerjee R, Ghosh SK, Chattopadhyay D. Sustained release of ketorolac tromethamine from poloxamer 407/cellulose nanofibrils graft nanocollagen based ophthalmic formulations. Int J Biol Macromol 2019; 140:441-453. [DOI: 10.1016/j.ijbiomac.2019.08.143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/14/2019] [Accepted: 08/16/2019] [Indexed: 12/20/2022]
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33
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Organogel composed of poloxamer 188 and passion fruit oil: Sol-gel transition, rheology, and mechanical properties. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111170] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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34
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Lemdani K, Seguin J, Lesieur C, Al Sabbagh C, Doan BT, Richard C, Capron C, Malafosse R, Boudy V, Mignet N. Mucoadhesive thermosensitive hydrogel for the intra-tumoral delivery of immunomodulatory agents, in vivo evidence of adhesion by means of non-invasive imaging techniques. Int J Pharm 2019; 567:118421. [DOI: 10.1016/j.ijpharm.2019.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 12/13/2022]
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35
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Abou‐Shamat MA, Calvo‐Castro J, Stair JL, Cook MT. Modifying the Properties of Thermogelling Poloxamer 407 Solutions through Covalent Modification and the Use of Polymer Additives. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900173] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mohamad A. Abou‐Shamat
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Jesus Calvo‐Castro
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Jacqueline L. Stair
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Michael T. Cook
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
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36
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Soliman KA, Ullah K, Shah A, Jones DS, Singh TRR. Poloxamer-based in situ gelling thermoresponsive systems for ocular drug delivery applications. Drug Discov Today 2019; 24:1575-1586. [PMID: 31175956 DOI: 10.1016/j.drudis.2019.05.036] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/15/2019] [Accepted: 05/31/2019] [Indexed: 02/06/2023]
Abstract
In situ gels have recently received interest as ocular drug delivery vehicles because they combine the merits of easy instillation and sustained drug release. In this review, we focus on the use of poloxamers as in situ gelling systems in ocular drug delivery because of their thermoresponsive gelling behaviour, biocompatibility, and ease of sterilisation. Furthermore, the sol-gel transition temperature, mucoadhesive properties, and drug release profiles of poloxamer-based in situ gels can be finely tuned, enabling them to be used as vehicles for the delivery of small and large drug molecules to treat diseases of the anterior and posterior segments of the eye. Poloxamer-based ocular products have already found their way to the pharmaceutical market, but remain a potential arena for further investigation and commercial exploitation.
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Affiliation(s)
- Karim A Soliman
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - K Ullah
- Department of Pharmacy, COMSATS University Islamabad, Abottabad Campus, Pakistan
| | - A Shah
- Department of Pharmacy, COMSATS University Islamabad, Abottabad Campus, Pakistan
| | - David S Jones
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Thakur R R Singh
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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37
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Tavakoli N, Taymouri S, Saeidi A, Akbari V. Thermosensitive hydrogel containing sertaconazole loaded nanostructured lipid carriers for potential treatment of fungal keratitis. Pharm Dev Technol 2019; 24:891-901. [DOI: 10.1080/10837450.2019.1616755] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Naser Tavakoli
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anahita Saeidi
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vajihe Akbari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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38
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Sahu S, Sikdar Y, Bag R, Maiti DK, Cerón-Carrasco JP, Goswami S. Visual detection of fluoride ion based on ICT mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:354-360. [PMID: 30721850 DOI: 10.1016/j.saa.2019.01.073] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/14/2019] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
A novel chemosensor (H3NTS) has been designed for a fast and accurate detection of F- in acetonitrile medium. The UV-Vis, 1H, 13C NMR experiments and computational calculations demonstrate that H3NTS probe offers a potential colorimetric sensor for discriminating F- among other relevant anions. The detection limit is as low as 6 μM and a reversible colorimetric switch could be devised by sequential addition of F-/Ca2+. The promising application of H3NTS is also confirmed in real examples where the concentration of F- is a critical parameter, e.g., commercial toothpaste, paper strip and gel form analysis of samples.
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Affiliation(s)
- Sutapa Sahu
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, India
| | - Yeasin Sikdar
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, India
| | - Riya Bag
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, India
| | - Dilip K Maiti
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, India
| | - José Pedro Cerón-Carrasco
- Bioinformatics and High Performance Computing Research Group (BIO-HPC), Universidad Catόlica San Antonio de Murcia (UCAM), 30107 Murcia, Spain.
| | - Sanchita Goswami
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, India.
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39
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Thermoreversible mucoadhesive polymer-drug dispersion for sustained local delivery of budesonide to treat inflammatory disorders of the GI tract. J Control Release 2019; 303:12-23. [PMID: 30980853 DOI: 10.1016/j.jconrel.2019.04.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/05/2019] [Accepted: 04/09/2019] [Indexed: 12/19/2022]
Abstract
Mucoadhesive drug formulations have been studied and used as alternatives to conventional formulations in order to achieve prolonged retention at the intended site. In addition to providing a controlled drug release, several drugs and disease conditions might benefit from mucoadhesive formulations, contributing to better therapeutic outcomes. Here, we describe the development and the in vitro/in vivo characterization of a mucoadhesive in situ gellifying formulation using PF127, a thermo reversible polymer, entrapping budesonide (BUD), a potent corticosteroid used for the treatment of a wide range of inflammatory diseases, including those affecting mucosas, such as in the GI tract. PF127 formulations (15-17%) were successfully prepared by a cold method as a thermo reversible in situ gelling dispersion for mucosal drug delivery, as confirmed by DSC. Sol-gel temperatures of PF127 formulations (25-39 °C) were observed by dynamic gelation and determined by microrheology and oscillatory rheometry. X-ray diffractograms and TEM images showed that BUD was completely solubilized within the polymeric micelles. In vitro, the gels showed 5-14 g force of mucoadhesion, and the ex vivo studies confirmed that the formulation efficiently adhered to the mucosa. Histopathological analysis combined with fluorescence images and ex vivo intestinal permeation confirmed that the formulation remained on the TGI mucosa for at least 4 h after administration. In vivo studies conducted in a murine model of intestinal mucositis demonstrated that the 16% PF127 BUD formulation was able to resolve the inflammatory injury in the intestinal mucosa. Results demonstrate that fine-tuning of PF127 formulations along with adequate selection of the drug agent, thorough characterization of the dispersions and their interactions with biological interfaces leads to the development of effective controlled drug delivery systems targeted to GI inflammatory diseases.
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40
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Pleguezuelos-Villa M, Nácher A, Hernández MJ, Busó MAOV, Barrachina M, Peñalver N, Díez-Sales O. A novel lidocaine hydrochloride mucoadhesive films for periodontal diseases. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:14. [PMID: 30635738 DOI: 10.1007/s10856-018-6213-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/28/2018] [Indexed: 06/09/2023]
Abstract
Periodontal diseases are inflammatory disorders caused primarily by dental plaque microorganisms that even may need surgery to remove damaged tissue. Adhesive biocompatible films may be an adequate form in order to improve drug retention or prevent microbial infections by covering the surgical site. In recent years, much attention has been focused on biocompatible inexpensive polymers, for biomedical and pharmaceutical potential applications. The objective of this research is the development of a film for mucosal application containing lidocaine hydrochloride (5%, w/w) as anesthetic drug. Lidocaine films were prepared with three biopolymers: hydroxypropylmethylcellulose (HPMC), chitosan (CH), or xanthan gum (XG). Their thickness and uniformity content were characterized. Rheological behavior of the hydrated films was studied using flow curves, creep and recovery tests and dynamic oscillatory measurements with a rheometer. The mucoadhesive assays were carried out with cheeks of Wistar rat using a universal tensile tester to know their adhesiveness. Finally, lidocaine delivery through the films was investigated in Franz cells. All films (n = 3 for each polymer) showed flexibility, a drug content of 0.015 ± 0.001 g/cm2 and a thickness of 0.25 ± 0.01 mm. The results of the maximum detachment force in tensile tests and work adhesion indicated that XG is the polymer that showed greater power of mucoadhesion (p < 0.05). These properties show a good correlation with the rheological characteristics. In all cases, the lidocaine amount released at 30 min is around 4 mg/cm2. This amount could be considered sufficient to guarantee the anesthetic effect.
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Affiliation(s)
- María Pleguezuelos-Villa
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
| | - Amparo Nácher
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat deValència, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - María Jesús Hernández
- Department of Earth Physics and Thermodynamics, Faculty of Physics, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - M A Ofelia Vila Busó
- Department of Physical Chemistry, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - María Barrachina
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Nuria Peñalver
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Octavio Díez-Sales
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat deValència, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
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41
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Güven UM, Berkman MS, Şenel B, Yazan Y. Development and in vitro/in vivo evaluation of thermo-sensitive in situ gelling systems for ocular allergy. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000117511] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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42
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Orasugh JT, Sarkar G, Saha NR, Das B, Bhattacharyya A, Das S, Mishra R, Roy I, Chattoapadhyay A, Ghosh SK, Chattopadhyay D. Effect of cellulose nanocrystals on the performance of drug loaded in situ gelling thermo-responsive ophthalmic formulations. Int J Biol Macromol 2018; 124:235-245. [PMID: 30481535 DOI: 10.1016/j.ijbiomac.2018.11.217] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/23/2018] [Accepted: 11/23/2018] [Indexed: 12/20/2022]
Abstract
Triblock poloxamer copolymer (PM) has been extensively utilized to deliver various ophthalmic pharmaceutical compounds. The aim of efficient ophthalmic drug delivery strategy is to attain the longer precorneal resident time and good bioavailability of drugs. In this pursuit, the influence of cellulose nanocrystals (CNC) on the in situ gelation behavior of PM and in vitro release of pilocarpine hydrochloride from the nanocomposites formulations was studied. The critical concentration of gelation of PM being 18% (wt/v) was dropped to 16.6% (wt/v) by the addition of a very low percentage of CNC. The reinforcing nature of CNC via H-bonding in the in situ nanocomposite gel also led to an increase in gel strength along with the sustained release of loaded drugs when compared with the pure PM gel. All formulations revealed that the drug release mechanism is controlled by the Fickian diffusion. Thus, the CNC has a significant effect on the gelation behavior, gel strength, and drug release kinetics of PM-CNC formulations.
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Affiliation(s)
- Jonathan Tersur Orasugh
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India; Department of Jute and Fiber Technology, Institute of Jute Technology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, West Bengal, India; Center for Research in Nanoscience and Nanotechnology, Acharya Prafulla Chandra Roy Sikhsha Prangan, University of Calcutta, JD-2, Sector-III, Saltlake City, Kolkata 700 098, WB, India
| | - Gunjan Sarkar
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India
| | - Nayan Ranjan Saha
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India
| | - Beauty Das
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India
| | - Amartya Bhattacharyya
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India
| | - Sreyasi Das
- Department of Physiology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, WB, India
| | - Roshnara Mishra
- Department of Physiology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, WB, India
| | - Indranil Roy
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India
| | - Atiskumar Chattoapadhyay
- Faculty Council For PG & UG Studies In Science, Jadavpur University, 188 Raja S. C. Mallick Road, Kolkata, West Bengal 700032, India
| | - Swapan Kumar Ghosh
- Department of Jute and Fiber Technology, Institute of Jute Technology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, West Bengal, India
| | - Dipankar Chattopadhyay
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, West Bengal, India.
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Bodratti AM, Alexandridis P. Amphiphilic block copolymers in drug delivery: advances in formulation structure and performance. Expert Opin Drug Deliv 2018; 15:1085-1104. [DOI: 10.1080/17425247.2018.1529756] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Andrew M. Bodratti
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY, USA
| | - Paschalis Alexandridis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY, USA
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Metal-organic frameworks, NH 2-MIL-88(Fe), as carriers for ophthalmic delivery of brimonidine. Acta Biomater 2018; 79:344-353. [PMID: 30134206 DOI: 10.1016/j.actbio.2018.08.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/25/2018] [Accepted: 08/17/2018] [Indexed: 12/19/2022]
Abstract
We have proposed a metal-organic framework (MOF), NH2-MIL-88(Fe), as a novel carrier for topical drug delivery to the eye. The NH2-MIL-88(Fe) particles were prepared via a solvothermal synthesis method and their structure was confirmed by powder X-ray diffraction, Fourier transform infrared analysis, thermogravimetric analysis, electron microscopy, and N2 adsorption-desorption measurements. When brimonidine, an anti-glaucoma medicine, was encapsulated into NH2-MIL(Fe)-88 (i.e., NH2-MIL-88(Fe)/Br), the drug was loaded at 121.3 µg/mg and released in a sustained manner for up to 12 h. The NH2-MIL-88(Fe)/Br exhibited mucoadhesive properties and remained on rabbit eyes for a period of up to 4 h. Consequently, a high concentration of brimonidine was found in tears for a prolonged period after the administration of NH2-MIL-88(Fe)/Br, which resulted in a greater than two-fold increase in drug bioavailability and activity period compared with those of Alphagan P, which are brimonidine eye drops already approved for clinical use. Hence, NH2-MIL-88(Fe) is suggested to be a promising carrier for topical delivery to the eye that provides enhanced bioavailability of ocular drugs. STATEMENT OF SIGNIFICANCE We suggest NH2-MIL(Fe)-88, a type of metal-organic frameworks (MOFs), as delivery carriers of an ophthalmic drug, brimonidine. The NH2-MIL(Fe)-88 particles possess a mucoadhesive property, hence prolonged retention in the preocular space when topically administered to the eye. The particles can also encapsulate the drug in their micro-pores, through which the drug can be released in a sustained manner. Therefore, when tested to rabbit eyes in vivo, the drug-loaded NH2-MIL(Fe)-88 particles were shown to enhance the ocular drug bioavailability, as compared with Alphagan P, the marketed eye drops of brimonidine.
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Zahir-Jouzdani F, Wolf JD, Atyabi F, Bernkop-Schnürch A. In situ gelling and mucoadhesive polymers: why do they need each other? Expert Opin Drug Deliv 2018; 15:1007-1019. [PMID: 30173567 DOI: 10.1080/17425247.2018.1517741] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Mucosal drug delivery is an attractive route of administration, particularly in overcoming deficits of conventional dosage forms including high first-pass metabolism and poor bioavailability. Fast drainage from the target mucosa, however, represents a major limitation as it prevents sufficient drug absorption. In order to address these problems, mucoadhesive in situ gelling drug delivery systems have been investigated as they facilitate easy application in combination with a longer residence time at the administration site resulting in more desirable therapeutic effects. AREAS COVERED The present review evaluates the importance of the combination of mucoadhesive and in situ gelling polymers along with mechanisms of in situ gelation and mucoadhesion. In addition, an overview about recent applications in mucosal drug delivery is provided. EXPERT OPINION In situ gelling and mucoadhesive polymers proved to be essential excipients in order to prolong the mucosal residence time of drug delivery systems. Due to this prolonged residence time both local and systemic therapeutic efficacy of numerous drugs can be substantially improved. Depending on the site of administration and the incorporated drug, combinations of different polymers with in situ gelling and mucoadhesive properties are needed to keep the delivery system as long as feasible at the target site.
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Affiliation(s)
- Forouhe Zahir-Jouzdani
- a Department of Pharmaceutical Technology , Institute of Pharmacy, University of Innsbruck , Innsbruck , Austria.,b Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Julian Dominik Wolf
- a Department of Pharmaceutical Technology , Institute of Pharmacy, University of Innsbruck , Innsbruck , Austria.,c Thiomatrix Forschungs- und Beratungs GmbH, Research Center Innsbruck , Trientlgasse, Innsbruck , Austria
| | - Fatemeh Atyabi
- b Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Andreas Bernkop-Schnürch
- a Department of Pharmaceutical Technology , Institute of Pharmacy, University of Innsbruck , Innsbruck , Austria
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Ganguly S, Mondal S, Das P, Bhawal P, Maity PP, Ghosh S, Dhara S, Das NC. Design of psyllium-g-poly(acrylic acid-co-sodium acrylate)/cloisite 10A semi-IPN nanocomposite hydrogel and its mechanical, rheological and controlled drug release behaviour. Int J Biol Macromol 2018; 111:983-998. [DOI: 10.1016/j.ijbiomac.2018.01.100] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/01/2018] [Accepted: 01/14/2018] [Indexed: 11/27/2022]
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El-sherif NI, Shamma RN, Abdelbary G. In-situ gels and nail lacquers as potential delivery systems for treatment of onychomycosis. A comparative study. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.10.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Bodratti AM, Alexandridis P. Formulation of Poloxamers for Drug Delivery. J Funct Biomater 2018; 9:E11. [PMID: 29346330 PMCID: PMC5872097 DOI: 10.3390/jfb9010011] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/13/2018] [Accepted: 01/14/2018] [Indexed: 12/26/2022] Open
Abstract
Poloxamers, also known as Pluronics®, are block copolymers of poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO), which have an amphiphilic character and useful association and adsorption properties emanating from this. Poloxamers find use in many applications that require solubilization or stabilization of compounds and also have notable physiological properties, including low toxicity. Accordingly, poloxamers serve well as excipients for pharmaceuticals. Current challenges facing nanomedicine revolve around the transport of typically water-insoluble drugs throughout the body, followed by targeted delivery. Judicious design of drug delivery systems leads to improved bioavailability, patient compliance and therapeutic outcomes. The rich phase behavior (micelles, hydrogels, lyotropic liquid crystals, etc.) of poloxamers makes them amenable to multiple types of processing and various product forms. In this review, we first present the general solution behavior of poloxamers, focusing on their self-assembly properties. This is followed by a discussion of how the self-assembly properties of poloxamers can be leveraged to encapsulate drugs using an array of processing techniques including direct solubilization, solvent displacement methods, emulsification and preparation of kinetically-frozen nanoparticles. Finally, we conclude with a summary and perspective.
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Affiliation(s)
- Andrew M Bodratti
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA.
| | - Paschalis Alexandridis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA.
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Zeng N, Seguin J, Destruel PL, Dumortier G, Maury M, Dhotel H, Bessodes M, Scherman D, Mignet N, Boudy V. Cyanine derivative as a suitable marker for thermosensitive in situ gelling delivery systems: In vitro and in vivo validation of a sustained buccal drug delivery. Int J Pharm 2017; 534:128-135. [DOI: 10.1016/j.ijpharm.2017.09.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/26/2017] [Accepted: 09/29/2017] [Indexed: 01/19/2023]
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50
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De Souza Ferreira SB, Da Silva JB, Volpato Junqueira M, Belincanta Borghi-Pangoni F, Guttierres Gomes R, Luciano Bruschi M. The importance of the relationship between mechanical analyses and rheometry of mucoadhesive thermoresponsive polymeric materials for biomedical applications. J Mech Behav Biomed Mater 2017; 74:142-153. [DOI: 10.1016/j.jmbbm.2017.05.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 05/28/2017] [Accepted: 05/31/2017] [Indexed: 01/14/2023]
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