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Ma L, Yao Y, Zhao X, Hou J, Huang L, Ding Z, Lu X, Wei J, Hao N. Rational Design of Liquid-Liquid Microdispersion Droplet Microreactors for the Controllable Synthesis of Highly Uniform and Monodispersed Dextran Microspheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14233-14244. [PMID: 38957947 DOI: 10.1021/acs.langmuir.4c00649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Hydrogel microspheres are biocompatible materials widely used in biological and medical fields. Emulsification and stirring are the commonly used methods to prepare hydrogels. However, the size distribution is considerably wide, the monodispersity and the mechanical intensity are poor, and the stable operation conditions are comparatively narrow to meet some sophisticated applications. In this paper, a T-shaped stepwise microchannel combined with a simple side microchannel structure is developed to explore the liquid-liquid dispersion mechanism, interfacial evolution behavior, satellite droplet formation mechanism and separation, and the eventual successful synthesis of dextran hydrogel microspheres. The effect of the operation parameters on droplet and microsphere size is comprehensively studied. The flow pattern and the stable operation condition range are given, and mathematical prediction models are developed under three different flow regimes for droplet size prediction. Based on the stable operating conditions, a microdroplet-based method combined with UV light curing is developed to synthesize the dextran hydrogel microsphere. The highly uniform and monodispersed dextran microspheres with good mechanical intensity are synthesized in the developed microfluidic platform. The size of the microsphere could be tuned from 50 to 300 μm with a capillary number in the range of 0.006-0.742. This work not only provides a facile method for functional polymeric microsphere preparation but also offers important design guidelines for the development of a robust microreactor.
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Affiliation(s)
- Li Ma
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Yilong Yao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Xiong Zhao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
- MicroChemEng Technology Co., Ltd., Jiangyin 214400, P. R. China
| | - Junsheng Hou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Lei Huang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Zihan Ding
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Xinlan Lu
- Department of Gastroenterology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
| | - Jinjia Wei
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Nanjing Hao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
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Bishnoi S, Jansman MMT, Chen J, Thulstrup PW, Keller SS, Hosta-Rigau L. Enzyme-loaded rod-like microgel shapes: a step towards the creation of shape-specific microreactors for blood detoxification purposes. J Mater Chem B 2024; 12:4736-4747. [PMID: 38660955 DOI: 10.1039/d3tb02905k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Rapid removal of toxic substances is crucial to restore the normal functions of our body and ensure survival. Due to their high substrate specificity and catalytic efficiency, enzymes are unique candidates to deplete toxic compounds. While enzymes display several limitations including low stability and high immunogenicity, these can be overcome by entrapping them in a diverse range of carriers. The resulting micro/nanoreactors shield the enzymes from their surroundings, preventing their misfolding or denaturation thus allowing them to conduct their function. The micro/nanoreactors must circulate in the blood stream for extended periods of time to ensure complete depletion of the toxic agents. Surprisingly, while it is widely acknowledged that non-spherical carriers exhibit longer residence time in the bloodstream than their spherical counterparts, so far, all the reported micro/nanoreactors have been assembled with a spherical architecture. Herein, we address this important issue by pioneering the first shape-specific microreactors. We use UV-assisted punching to create rod-like microgel shapes with dimensions of 8 μm × 1 μm × 2 μm and demonstrate their biocompatibility by conducting hemolysis and cell viability assays with a macrophage and an endothelial cell line. Upon encapsulation of the model enzyme β-lactamase, the successful fabrication of rod-shaped microreactors is demonstrated by their ability to convert the yellow nitrocefin substrate into its hydrolyzed product.
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Affiliation(s)
- Shahana Bishnoi
- Department of Health Technology, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Nils Koppels Allé, Building 423, Kgs. Lyngby, 2800, Denmark.
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Kgs, Lyngby, 2800, Denmark
| | - Michelle Maria Theresia Jansman
- Department of Health Technology, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Nils Koppels Allé, Building 423, Kgs. Lyngby, 2800, Denmark.
| | - Jiantao Chen
- Department of Health Technology, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Nils Koppels Allé, Building 423, Kgs. Lyngby, 2800, Denmark.
| | - Peter Waaben Thulstrup
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Stephan Sylvest Keller
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Kgs, Lyngby, 2800, Denmark
| | - Leticia Hosta-Rigau
- Department of Health Technology, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Nils Koppels Allé, Building 423, Kgs. Lyngby, 2800, Denmark.
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Maleki M, Karimi-Soflou R, Karkhaneh A. Raspberry-like PLA/PGS biodegradable microparticles with urethane linkages: Unlocking tailored release of magnesium ions and oxygen for bone tissue engineering. Int J Pharm 2024; 651:123760. [PMID: 38163525 DOI: 10.1016/j.ijpharm.2023.123760] [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: 07/13/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Designing biodegradable microparticles with finely controlled release properties for tissue engineering systems remains a significant scientific challenge. This study introduces a novel approach by fabricating urethane-linked PLA/PGS microparticles loaded with magnesium peroxide. The microparticles offer potential applications in bone tissue engineering due to their ability to provide a controlled release of oxygen and magnesium ions while maintaining physiological pH. The PGS pre-polymer was synthesized via polycondensation and characterized using FTIR, 1H NMR, and GPC. Microparticle morphology transformed from smooth to raspberry-like upon incorporation of PGS, as observed by SEM. Microparticle size was tuned by varying PGS and PLA concentrations. FTIR analysis confirmed the successful formation of urethane links within the microparticles. MgO2-loaded PLA/PGS microparticles exhibited sustained release of dissolved oxygen and magnesium ions for 21 days while maintaining physiological pH better than PLA microparticles. Cell viability assays confirmed microparticle cytocompatibility, and ALP and Alizarin red assays demonstrated their ability to induce osteogenic differentiation. These findings highlight the potential of pH-controlled MgO2-loaded microparticles as an effective system for bone tissue engineering. In conclusion, this study presents a novel approach to designing biodegradable microparticles with adjustable release properties for bone tissue engineering. The urethane-based MgO2-loaded microparticles provide controlled release of oxygen and magnesium ions and regulate the environment's pH, making them a promising system for bone tissue engineering applications.
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Affiliation(s)
- Mina Maleki
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Reza Karimi-Soflou
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Akbar Karkhaneh
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran.
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Sarfati P, De La Taille T, Portioli C, Spanò R, Lalatonne Y, Decuzzi P, Chauvierre C. REVIEW: "ISCHEMIC STROKE: From Fibrinolysis to Functional Recovery" Nanomedicine: Emerging Approaches to Treat Ischemic Stroke. Neuroscience 2023:S0306-4522(23)00536-5. [PMID: 38056622 DOI: 10.1016/j.neuroscience.2023.11.035] [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: 09/07/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
Stroke is responsible for 11% of all deaths worldwide, the majority of which are caused by ischemic strokes, thus making the need to urgently find safe and effective therapies. Today, these can be cured either by mechanical thrombectomy when the thrombus is accessible, or by intravenous injection of fibrinolytics. However, the latter present several limitations, such as potential severe side effects, few eligible patients and low rate of partial and full recovery. To design safer and more effective treatments, nanomedicine appeared in this medical field a few decades ago. This review will explain why nanoparticle-based therapies and imaging techniques are relevant for ischemic stroke management. Then, it will present the different nanoparticle types that have been recently developed to treat this pathology. It will also study the various targeting strategies used to bring nanoparticles to the stroke site, thereby limiting side effects and improving the therapeutic efficacy. Finally, this review will present the few clinical studies testing nanomedicine on stroke and discuss potential causes for their scarcity.
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Affiliation(s)
- Pierre Sarfati
- Université Paris Cité, Université Sorbonne Paris Nord, UMR-S U1148 INSERM, Laboratory for Vascular Translational Science (LVTS), F-75018 Paris, France
| | - Thibault De La Taille
- Université Paris Cité, Université Sorbonne Paris Nord, UMR-S U1148 INSERM, Laboratory for Vascular Translational Science (LVTS), F-75018 Paris, France
| | - Corinne Portioli
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Raffaele Spanò
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Yoann Lalatonne
- Université Paris Cité, Université Sorbonne Paris Nord, UMR-S U1148 INSERM, Laboratory for Vascular Translational Science (LVTS), F-75018 Paris, France; Département de Biophysique et de Médecine Nucléaire, Assistance Publique-Hôpitaux de Paris, Hôpital Avicenne, F-93009 Bobigny, France
| | - Paolo Decuzzi
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Cédric Chauvierre
- Université Paris Cité, Université Sorbonne Paris Nord, UMR-S U1148 INSERM, Laboratory for Vascular Translational Science (LVTS), F-75018 Paris, France.
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Cook AB, Palange A, Schlich M, Bellotti E, Brahmachari S, di Francesco M, Decuzzi P. Matrix metalloproteinase responsive hydrogel microplates for programmed killing of invasive tumour cells. RSC APPLIED POLYMERS 2023; 1:19-29. [PMID: 38013908 PMCID: PMC10540463 DOI: 10.1039/d3lp00057e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/08/2023] [Indexed: 11/29/2023]
Abstract
Interactive materials are an emerging class of systems that can offer control over response and adaptivity in polymer structures towards the meso- and macroscale. Here, we use enzyme regulated cleavage of peptide crosslinkers in polymer hydrogels to release a cytotoxic therapeutic nanoparticle with an adaptable mechanism. Hydrogel microplates were formed through polyethylene glycol/peptide photoinitiated thiol-ene chemistry in a soft-lithography process to give square plates of 20 by 20 μm with a height of 10 μm. The peptide was chosen to be degradable in the presence of matrix metalloproteinase 2/9 (MMP-2/9). The hydrogel material's mechanical properties, swelling, and protease degradation were characterised. The microfabricated hydrogels were loaded with docetaxel (DTXL) containing poly(dl-lactide-co-glycolide) (PLGA) nanoparticles, and characterised for enzyme responsivity, and toxicity to MMP-2/9 overexpressing brain cancer cell line U87-MG. A 5-fold decrease in EC50 was seen compared to free DTXL, and a 20-fold decrease was seen for the MMP responsive microplates versus a non-degradable control microplate. Potential applications of this system in post-resection glioblastoma treatment are envisioned.
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Affiliation(s)
- Alexander B Cook
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Annalisa Palange
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Michele Schlich
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Elena Bellotti
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Sayanti Brahmachari
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Martina di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
| | - Paolo Decuzzi
- Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia Via Morego 16163 Genova Italy
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Zohra T, Saeed F, Ikram A, Khan T, Alam S, Adil M, Gul A, Almawash S, Ayaz M. Nanomedicine as a potential novel therapeutic approach against the dengue virus. Nanomedicine (Lond) 2023; 18:1567-1584. [PMID: 37753727 DOI: 10.2217/nnm-2022-0217] [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] [Indexed: 09/28/2023] Open
Abstract
Dengue is an arbovirus infection which is transmitted by Aedes mosquitoes. Its prompt detection and effective treatment is a global health challenge. Various nanoparticle-based vaccines have been formulated to present immunogen (antigens) to instigate an immune response or prevent virus spread, but no specific treatment has been devised. This review explores the role of nanomedicine-based therapeutic agents against dengue virus, taking into consideration the applicable dengue virus assays that are sensitive, specific, have a short turnaround time and are inexpensive. Various kinds of metallic, polymeric and lipid nanoparticles with safe and effective profiles present an alternative strategy that could provide a better remedy for eradicating the dengue virus.
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Affiliation(s)
- Tanzeel Zohra
- Public Health Laboratories Division, National Institute of Health, Islamabad, 45500, Pakistan
| | - Faryal Saeed
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Aamer Ikram
- Public Health Laboratories Division, National Institute of Health, Islamabad, 45500, Pakistan
| | - Tariq Khan
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Siyab Alam
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Muhammad Adil
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Ayesha Gul
- Department of Chemical Engineering, Polytechnique Montreal, H3T IJ4, Canada
| | - Saud Almawash
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra, 11961, Saudi Arabia
| | - Muhammad Ayaz
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
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Teora SP, Panavaité E, Sun M, Kiffen B, Wilson DA. Anisotropic, Hydrogel Microparticles as pH-Responsive Drug Carriers for Oral Administration of 5-FU. Pharmaceutics 2023; 15:pharmaceutics15051380. [PMID: 37242622 DOI: 10.3390/pharmaceutics15051380] [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: 03/10/2023] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
In the last 20 years, the development of stimuli-responsive drug delivery systems (DDS) has received great attention. Hydrogel microparticles represent one of the candidates with the most potential. However, if the role of the cross-linking method, polymer composition, and concentration on their performance as DDS has been well-studied, still, a lot needs to be explained regarding the effect caused by the morphology. To investigate this, herein, we report the fabrication of PEGDA-ALMA-based microgels with spherical and asymmetric shapes for 5-fluorouracil (5-FU) on-demand loading and in vitro pH-triggered release. Due to anisotropic properties, the asymmetric particles showed an increased drug adsorption and higher pH responsiveness, which in turn led to a higher desorption efficacy at the target pH environment, making them an ideal candidate for oral administration of 5-FU in colorectal cancer. The cytotoxicity of empty spherical microgels was higher than the cytotoxicity of empty asymmetric microgels, suggesting that the gel network's mechanical proprieties of anisotropic particles were a better three-dimensional environment for the vital functions of cells. Upon treatment with drug-loaded microgels, the HeLa cells' viability was lower after incubation with asymmetric particles, confirming a minor release of 5-FU from spherical particles.
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Affiliation(s)
- Serena P Teora
- Department of Systems Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 Nijmegen, The Netherlands
| | - Elada Panavaité
- Department of Systems Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 Nijmegen, The Netherlands
| | - Mingchen Sun
- Department of Systems Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 Nijmegen, The Netherlands
| | - Bas Kiffen
- Department of Systems Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 Nijmegen, The Netherlands
| | - Daniela A Wilson
- Department of Systems Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 Nijmegen, The Netherlands
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Ozkan H, Di Francesco M, Willcockson H, Valdés-Fernández J, Di Francesco V, Granero-Moltó F, Prósper F, Decuzzi P, Longobardi L. Sustained inhibition of CC-chemokine receptor-2 via intraarticular deposition of polymeric microplates in post-traumatic osteoarthritis. Drug Deliv Transl Res 2023; 13:689-701. [PMID: 36109442 PMCID: PMC9794532 DOI: 10.1007/s13346-022-01235-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2022] [Indexed: 12/31/2022]
Abstract
Posttraumatic osteoarthritis (PTOA) is mostly treated via corticosteroid administration, and total joint arthroplasty continues to be the sole effective intervention in severe conditions. To assess the therapeutic potential of CCR2 targeting in PTOA, we used biodegradable microplates (µPLs) to achieve a slow and sustained intraarticular release of the CCR2 inhibitor RS504393 into injured knees and followed joint damage during disease progression. RS504393-loaded µPLs (RS-µPLs) were fabricated via a template-replica molding technique. A mixture of poly(lactic-co-glycolic acid) (PLGA) and RS504393 was deposited into 20 × 10 μm (length × height) wells in a polyvinyl alcohol (PVA) square-patterned template. After physicochemical and toxicological characterizations, the RS504393 release profile from µPL was assessed in PBS buffer. C57BL/6 J male mice were subjected to destabilization of the medial meniscus (DMM)/sham surgery, and RS-µPLs (1 mg/kg) were administered intraarticularly 1 week postsurgery. Administrations were repeated at 4 and 7 weeks post-DMM. Drug free-µPLs (DF-µPLs) and saline injections were performed as controls. Mice were euthanized at 4 and 10 weeks post-DMM, corresponding to the early and severe PTOA stages, respectively. Knees were evaluated for cartilage structure score (ACS, H&E), matrix loss (safranin O score), osteophyte formation and maturation from cartilage to bone (cartilage quantification), and subchondral plate thickness. The RS-µPL architecture ensured the sustained release of CCR2 inhibitors over several weeks, with ~ 20% of RS504393 still available at 21 days. This prolonged release improved cartilage structure and reduced bone damage and synovial hyperplasia at both PTOA stages. Extracellular matrix loss was also attenuated, although with less efficacy. The results indicate that local sustained delivery is needed to optimize CCR2-targeted therapies.
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Affiliation(s)
- Huseyin Ozkan
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - Martina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Helen Willcockson
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - José Valdés-Fernández
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA ,Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain
| | - Valentina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Froilán Granero-Moltó
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Department of Orthopedic Surgery and Traumatology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Felipe Prósper
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain ,Department of Hematology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Hemato-Oncology, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain
| | - Paolo Decuzzi
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Lara Longobardi
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC, 27599, USA.
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Thananukul K, Kaewsaneha C, Opaprakasit P, Zine N, Elaissari A. Biodegradable porous micro/nanoparticles with thermoresponsive gatekeepers for effective loading and precise delivery of active compounds at the body temperature. Sci Rep 2022; 12:10906. [PMID: 35764674 PMCID: PMC9240026 DOI: 10.1038/s41598-022-15069-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/17/2022] [Indexed: 11/27/2022] Open
Abstract
Stimuli-responsive controlled delivery systems are of interest for preventing premature leakages and ensuring precise releases of active compounds at target sites. In this study, porous biodegradable micro/nanoparticles embedded with thermoresponsive gatekeepers are designed and developed based on Eudragit RS100 (PNIPAM@RS100) and poly(N-isopropylacrylamide) via a double emulsion solvent evaporation technique. The effect of initiator types on the polymerization of NIPAM monomer/methylene-bis-acrylamide (MBA) crosslinker was investigated at 60 °C for thermal initiators and ambient temperature for redox initiators. The crosslinked PNIPAM plays a key role as thermal-triggered gatekeepers with high loading efficiency and precise release of a model active compound, Nile Blue A (NB). Below the volume phase transition temperature (TVPT), the gatekeepers possess a swollen conformation to block the pores and store NB within the cavities. Above its TVPT, the chains rearrange, allowing gate opening and a rapid and constant release rate of the compound until completion. A precise “on–off” switchable release efficiency of PNIPAM@RS100 was demonstrated by changing the temperatures to 4 and 40 °C. The materials are a promising candidate for controlled drug delivery systems with a precise and easy triggering mechanism at the body temperature for effective treatments.
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Affiliation(s)
- Kamonchanok Thananukul
- School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat University, Pathum Thani, 12121, Thailand.,Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
| | - Chariya Kaewsaneha
- School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat University, Pathum Thani, 12121, Thailand
| | - Pakorn Opaprakasit
- School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat University, Pathum Thani, 12121, Thailand.
| | - Nadia Zine
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France.
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