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Mojares E, Nadal C, Hayler D, Kanso H, Chrysanthou A, Neri Cruz CE, Gautrot JE. Strong Elastic Protein Nanosheets Enable the Culture and Differentiation of Induced Pluripotent Stem Cells on Microdroplets. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406333. [PMID: 39036832 DOI: 10.1002/adma.202406333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/30/2024] [Indexed: 07/23/2024]
Abstract
Advances in stem cell technologies, revolutionizing regenerative therapies and advanced in vitro testing, require novel cell manufacturing pipelines able to cope with scale up and parallelization. Microdroplet technologies, which have transformed single cell sequencing and other cell-based assays, are attractive in this context, but the inherent soft mechanics of liquid-liquid interfaces is typically thought to be incompatible with the expansion of induced pluripotent stem cells (iPSCs), and their differentiation. In this work, the design of protein nanosheets stabilizing liquid-liquid interfaces and enabling the adhesion, expansion and retention of stemness by iPSCs is reported. Microdroplet microfluidic chips are used to control the formulation of droplets with defined dimensions and size distributions. The resulting emulsions sustain high expansion rates, with excellent retention of stem cell marker expression. iPSCs cultured in such conditions retain the capacity to differentiate into cardiomyocytes. This work provides clear evidence that local nanoscale mechanics, associated with interfacial viscoelasticity, provides strong cues able to regulate and maintain pluripotency, as well as to support commitment in defined differentiation conditions. Microdroplet technologies appear as attractive candidates to transform cell manufacturing pipelines, bypassing significant hurdles paused by solid substrates and microcarriers.
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Affiliation(s)
- Elijah Mojares
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Clemence Nadal
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Daniel Hayler
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Hassan Kanso
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Alexandra Chrysanthou
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Carlos E Neri Cruz
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Julien E Gautrot
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
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2
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El-Husseiny HM, Mady EA, Doghish AS, Zewail MB, Abdelfatah AM, Noshy M, Mohammed OA, El-Dakroury WA. Smart/stimuli-responsive chitosan/gelatin and other polymeric macromolecules natural hydrogels vs. synthetic hydrogels systems for brain tissue engineering: A state-of-the-art review. Int J Biol Macromol 2024; 260:129323. [PMID: 38242393 DOI: 10.1016/j.ijbiomac.2024.129323] [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: 09/28/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 01/21/2024]
Abstract
Currently, there are no viable curative treatments that can enhance the central nervous system's (CNS) recovery from trauma or illness. Bioengineered injectable smart/stimuli-responsive hydrogels (SSRHs) that mirror the intricacy of the CNS milieu and architecture have been suggested as a way to get around these restrictions in combination with medication and cell therapy. Additionally, the right biophysical and pharmacological stimuli are required to boost meaningful CNS regeneration. Recent research has focused heavily on developing SSRHs as cutting-edge delivery systems that can direct the regeneration of brain tissue. In the present article, we have discussed the pathology of brain injuries, and the applicable strategies employed to regenerate the brain tissues. Moreover, the most promising SSRHs for neural tissue engineering (TE) including alginate (Alg.), hyaluronic acid (HA), chitosan (CH), gelatin, and collagen are used in natural polymer-based hydrogels and thoroughly discussed in this review. The ability of these hydrogels to distribute bioactive substances or cells in response to internal and external stimuli is highlighted with particular attention. In addition, this article provides a summary of the most cutting-edge techniques for CNS recovery employing SSRHs for several neurodegenerative diseases.
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Affiliation(s)
- Hussein M El-Husseiny
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai Cho, Fuchu-shi, Tokyo 183-8509, Japan; Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Elqaliobiya 13736, Egypt.
| | - Eman A Mady
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai Cho, Fuchu-shi, Tokyo 183-8509, Japan; Department of Animal Hygiene, Behavior and Management, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Elqaliobiya 13736, Egypt.
| | - Ahmed S Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt; Department of Biochemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Cairo, Egypt.
| | - Moataz B Zewail
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Badr University in Cairo, Badr City, Cairo 11829, Egypt
| | - Amr M Abdelfatah
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Mina Noshy
- Clinical Pharmacy Department, Faculty of Pharmacy, King Salman International University (KSIU), South Sinai, Ras Sudr 46612, Egypt
| | - Osama A Mohammed
- Department of Pharmacology, College of Medicine, University of Bisha, Bisha 61922, Saudi Arabia
| | - Walaa A El-Dakroury
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Badr University in Cairo, Badr City, Cairo 11829, Egypt
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3
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Keshavarz M, Jahanshahi M, Hasany M, Kadumudi FB, Mehrali M, Shahbazi MA, Alizadeh P, Orive G, Dolatshahi-Pirouz A. Smart alginate inks for tissue engineering applications. Mater Today Bio 2023; 23:100829. [PMID: 37841801 PMCID: PMC10568307 DOI: 10.1016/j.mtbio.2023.100829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/04/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023] Open
Abstract
Amazing achievements have been made in the field of tissue engineering during the past decades. However, we have not yet seen fully functional human heart, liver, brain, or kidney tissue emerge from the clinics. The promise of tissue engineering is thus still not fully unleashed. This is mainly related to the challenges associated with producing tissue constructs with similar complexity as native tissue. Bioprinting is an innovative technology that has been used to obliterate these obstacles. Nevertheless, natural organs are highly dynamic and can change shape over time; this is part of their functional repertoire inside the body. 3D-bioprinted tissue constructs should likewise adapt to their surrounding environment and not remain static. For this reason, the new trend in the field is 4D bioprinting - a new method that delivers printed constructs that can evolve their shape and function over time. A key lack of methodology for printing approaches is the scalability, easy-to-print, and intelligent inks. Alginate plays a vital role in driving innovative progress in 3D and 4D bioprinting due to its exceptional properties, scalability, and versatility. Alginate's ability to support 3D and 4D printing methods positions it as a key material for fueling advancements in bioprinting across various applications, from tissue engineering to regenerative medicine and beyond. Here, we review the current progress in designing scalable alginate (Alg) bioinks for 3D and 4D bioprinting in a "dry"/air state. Our focus is primarily on tissue engineering, however, these next-generation materials could be used in the emerging fields of soft robotics, bioelectronics, and cyborganics.
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Affiliation(s)
- Mozhgan Keshavarz
- Department of Materials Science and Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz 01006, Spain
| | - Mohammadjavad Jahanshahi
- Department of Chemistry, Faculty of Science, University of Jiroft, P. O. Box 8767161167, Jiroft, Iran
| | - Masoud Hasany
- Department of Civil and Mechanical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Firoz Babu Kadumudi
- Department of Health Technology, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Mehdi Mehrali
- Department of Civil and Mechanical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Parvin Alizadeh
- Department of Materials Science and Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz 01006, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Vitoria-Gasteiz 01006, Spain
- University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria-Gasteiz 01006, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz 01006, Spain
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Huang L, Jiang Y, Chen X, Zhang W, Luo Q, Chen S, Wang S, Weng F, Xiao L. Supramolecular Responsive Chitosan Microcarriers for Cell Detachment Triggered by Adamantane. Polymers (Basel) 2023; 15:4024. [PMID: 37836073 PMCID: PMC10574836 DOI: 10.3390/polym15194024] [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: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Supramolecular responsive microcarriers based on chitosan microspheres were prepared and applied for nonenzymatic cell detachment. Briefly, chitosan microspheres (CSMs) were first prepared by an emulsion crosslinking approach, the surface of which was then modified with β-cyclodextrin (β-CD) by chemical grafting. Subsequently, gelatin was attached onto the surface of the CSMs via the host-guest interaction between β-CD groups and aromatic residues in gelatin. The resultant microspheres were denoted CSM-g-CD-Gel. Due to their superior biocompatibility and gelatin niches, CSM-g-CD-Gel microspheres can be used as effective microcarriers for cell attachment and expansion. L-02, a human fetal hepatocyte line, was used to evaluate cell attachment and expansion with these microcarriers. After incubation for 48 h, the cells attached and expanded to cover the entire surface of microcarriers. Moreover, with the addition of adamantane (AD), cells can be detached from the microcarriers together with gelatin because of the competitive binding between β-CD and AD. Overall, these supramolecular responsive microcarriers could effectively support cell expansion and achieve nonenzymatic cell detachment and may be potentially reusable with a new cycle of gelatin attachment and detachment.
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Affiliation(s)
- Lixia Huang
- Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China; (L.H.); (Y.J.); (S.C.); (F.W.)
| | - Yifei Jiang
- Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China; (L.H.); (Y.J.); (S.C.); (F.W.)
| | - Xinying Chen
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (W.Z.); (Q.L.)
| | - Wenqi Zhang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (W.Z.); (Q.L.)
| | - Qiuchen Luo
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (W.Z.); (Q.L.)
| | - Siyan Chen
- Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China; (L.H.); (Y.J.); (S.C.); (F.W.)
| | - Shuhan Wang
- Shenzhen Institute for Drug Control, Shenzhen Testing Center of Medical Devices, Shenzhen 518057, China;
| | - Fangqing Weng
- Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China; (L.H.); (Y.J.); (S.C.); (F.W.)
| | - Lin Xiao
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (W.Z.); (Q.L.)
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Ji X, Yang X, Shi C, Guo D, Wang X, Messina JM, Meng Q, Urao N, Cooney R, Luo J. Functionalized core-shell nanogel scavenger for immune modulation therapy in sepsis. ADVANCED THERAPEUTICS 2022; 5:2200127. [PMID: 36590645 PMCID: PMC9797201 DOI: 10.1002/adtp.202200127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/05/2023]
Abstract
Sepsis is a complex, life-threatening hyperinflammatory syndrome associated with organ failure and high mortality due to lack of effective treatment options. Here we report a core-shell hydrogel nanoparticle with the core functionalized with telodendrimer (TD) nanotrap (NT) to control hyperinflammation in sepsis. The combination of multi-valent charged and hydrophobic moieties in TD enables effective binding with biomolecules in NT. The higher crosslinking in the shell structure of nanogel excludes the abundant large serum proteins and allows for size-selectivity in scavenging the medium-sized septic molecules (10-30 kDa), e.g., lipopolysaccharides (LPS, a potent endotoxin in sepsis), thus reducing cytokine production. At the same time, the core-shell TD NT nanogel captures the over-flowing proinflammatory cytokines effectively both in vitro and in vivo from biological fluids to further control hyperinflammation. Intraperitoneal injection of core-shell TD NT nanogel effectively attenuates NF-κB activation and cytokine production in LPS-induced septic mouse models. These results indicate the potential applications of the injectable TD NT core-shell nanogel to attenuate local or systemic inflammation.
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Affiliation(s)
- Xiaotian Ji
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Xiguang Yang
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Changying Shi
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Dandan Guo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Xiaojing Wang
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Jennifer M Messina
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Qinghe Meng
- Department of Surgery, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Norifumi Urao
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Robert Cooney
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Department of Surgery, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Juntao Luo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Department of Surgery, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Upstate Cancer Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
- Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
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6
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Nguyen LTB, Baudequin T, Cui Z, Ye H. Validation and scalability of homemade polycaprolactone macro-beads grafted with thermo-responsive poly (N-isopropyl acrylamide) for mesenchymal stem cell expansion and harvesting. Biotechnol Bioeng 2022; 119:2345-2358. [PMID: 35586933 PMCID: PMC9542213 DOI: 10.1002/bit.28133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/14/2022] [Accepted: 05/13/2022] [Indexed: 11/07/2022]
Abstract
In this study, polycaprolactone (PCL) macro-beads were prepared by an oil-in-water (o/w) emulsion solvent evaporation method with poly (vinyl alcohol) (PVA) as an emulsifier and conjugated to poly (N-isopropyl acrylamide) (PNIPAAm) to be used as cell carriers with non-invasive cell detachment properties (thermo-response). Following previous studies with PCL-PNIPAAm carriers, our objectives were to confirm the successful conjugation on homemade macro-beads and to show the advantages of homemade production over commercial beads to control morphological, biological and fluidization properties. The effects of PCL concentration on the droplet formation and of flow rate and PVA concentration on the size of the beads were demonstrated. The size of the beads, all spherical, ranged from 0.5 mm to 3.7 mm with four bead categories based on production parameters. The morphology and size of the beads were observed by scanning electron microscopy to show surface roughness enhancing cell attachment and proliferation compared to commercial beads. The functionalization steps with PNIPAAm were then characterized and confirmed by Fourier transform infrared spectroscopy (FTIR), SEM and Energy Dispersion Spectroscopy (EDS). PNIPAAm-grafted macro-beads allowed mesenchymal stem cells (MSC) to spread and grow for up to 21 days. By reducing the temperature to 25 °C, the MSCs were successfully detached from the PCL-PNIPAAm beads as observed with fluorescence microscopy. Furthermore, we validated the scalability potential of both macro-beads production and conjugation with PCL, in order to produce easily kilograms of thermo-responsive macro-carriers in a lab environment. This could help moving such approaches towards clinically and industrially relevant processes were cell expansion is needed at very large scale. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Linh T. B. Nguyen
- Department of Engineering Science, Institute of Biomedical EngineeringUniversity of OxfordOxfordUK
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College LondonRoyal Free HospitalLondonUnited Kingdom
| | - Timothée Baudequin
- Department of Engineering Science, Institute of Biomedical EngineeringUniversity of OxfordOxfordUK
- Present address:
CNRS, Biomechanics and Bioengineering, Centre de recherche RoyallieuUniversité de technologie de CompiègneCompiègneFrance
| | - Zhanfeng Cui
- Department of Engineering Science, Institute of Biomedical EngineeringUniversity of OxfordOxfordUK
| | - Hua Ye
- Department of Engineering Science, Institute of Biomedical EngineeringUniversity of OxfordOxfordUK
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Khadem E, Kharaziha M, Bakhsheshi-Rad HR, Das O, Berto F. Cutting-Edge Progress in Stimuli-Responsive Bioadhesives: From Synthesis to Clinical Applications. Polymers (Basel) 2022; 14:polym14091709. [PMID: 35566878 PMCID: PMC9104595 DOI: 10.3390/polym14091709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/31/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
With the advent of “intelligent” materials, the design of smart bioadhesives responding to chemical, physical, or biological stimuli has been widely developed in biomedical applications to minimize the risk of wounds reopening, chronic pain, and inflammation. Intelligent bioadhesives are free-flowing liquid solutions passing through a phase shift in the physiological environment due to stimuli such as light, temperature, pH, and electric field. They possess great merits, such as ease to access and the ability to sustained release as well as the spatial transfer of a biomolecule with reduced side effects. Tissue engineering, wound healing, drug delivery, regenerative biomedicine, cancer therapy, and other fields have benefited from smart bioadhesives. Recently, many disciplinary attempts have been performed to promote the functionality of smart bioadhesives and discover innovative compositions. However, according to our knowledge, the development of multifunctional bioadhesives for various biomedical applications has not been adequately explored. This review aims to summarize the most recent cutting-edge strategies (years 2015–2021) developed for stimuli-sensitive bioadhesives responding to external stimuli. We first focus on five primary categories of stimuli-responsive bioadhesive systems (pH, thermal, light, electric field, and biomolecules), their properties, and limitations. Following the introduction of principal criteria for smart bioadhesives, their performances are discussed, and certain smart polymeric materials employed in their creation in 2015 are studied. Finally, advantages, disadvantages, and future directions regarding smart bioadhesives for biomedical applications are surveyed.
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Affiliation(s)
- Elham Khadem
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mahshid Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
- Correspondence: (M.K.); (F.B.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187 Luleå, Sweden;
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- Correspondence: (M.K.); (F.B.)
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8
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Effect of Non-Covalent Interactions on the 2,4- and 3,5-Dinitrobenzoate Eu-Cd Complex Structures. CRYSTALS 2022. [DOI: 10.3390/cryst12040508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Heterometallic {Eu2Cd2} complexes [Eu2(NO3)2Cd2(Phen)2(2,4-Nbz)8]n·2nMeCN (I) and [Eu2(MeCN)2Cd2(Phen)2(3,5-Nbz)10] (II) with the 2,4-dinitrobenzoate (2,4-Nbz) and 3,5-dinitrobenzoate (3,5-Nbz) anions and 1,10-phenanthroline were synthesized. The compounds obtained were characterized by X-ray single-crystal analysis, powder X-ray diffraction analysis, IR spectroscopy, and elemental analysis. Moreover, the thermal stability of the complexes was also studied. Analysis of the crystal packing showed that where 1,10-phenanthroline is combined with various isomers of dinitrobenzoate anions, different arrangements of non-covalent interactions are observed in the complex structures. In the case of the compound with the 2,4-dinitrobenzoate anion, these interactions lead to a significant distortion of the metal core geometry and formation of a polymeric structure, while the complex with the 3,5-dinitrobenzoate anion has a structure that is typical of similar systems. The absence of europium metal-centered luminescence at 270 nm wavelength was shown. For all the reported compounds, a thermal stability study was carried out that showed that the compounds decomposed with a significant thermal effect.
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New Insights of Scaffolds Based on Hydrogels in Tissue Engineering. Polymers (Basel) 2022; 14:polym14040799. [PMID: 35215710 PMCID: PMC8875010 DOI: 10.3390/polym14040799] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 02/04/2023] Open
Abstract
In recent years, biomaterials development and characterization for new applications in regenerative medicine or controlled release represent one of the biggest challenges. Tissue engineering is one of the most intensively studied domain where hydrogels are considered optimum applications in the biomedical field. The delicate nature of hydrogels and their low mechanical strength limit their exploitation in tissue engineering. Hence, developing new, stronger, and more stable hydrogels with increased biocompatibility, is essential. However, both natural and synthetic polymers possess many limitations. Hydrogels based on natural polymers offer particularly high biocompatibility and biodegradability, low immunogenicity, excellent cytocompatibility, variable, and controllable solubility. At the same time, they have poor mechanical properties, high production costs, and low reproducibility. Synthetic polymers come to their aid through superior mechanical strength, high reproducibility, reduced costs, and the ability to regulate their composition to improve processes such as hydrolysis or biodegradation over variable periods. The development of hydrogels based on mixtures of synthetic and natural polymers can lead to the optimization of their properties to obtain ideal scaffolds. Also, incorporating different nanoparticles can improve the hydrogel’s stability and obtain several biological effects. In this regard, essential oils and drug molecules facilitate the desired biological effect or even produce a synergistic effect. This study’s main purpose is to establish the main properties needed to develop sustainable polymeric scaffolds. These scaffolds can be applied in tissue engineering to improve the tissue regeneration process without producing other side effects to the environment.
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Vandeberg R, Grysan P, Sion C, Włodarczyk-Biegun MK, Lentzen E, Bour J, Krishnamoorthy S, Olmos E, Grandfils C. Dextran-based matrix functionalization to promote WJ-MSCs amplification: synthesis and characterization. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.2006657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Romain Vandeberg
- Interfaculty Research Center of Biomaterials, University of Liège, Liège, Belgium
| | - Patrick Grysan
- Nano-Enabled Medicine and Cosmetics Group, Materials Research and Technology, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Caroline Sion
- The Reactions and Chemical Engineering Laboratory, University of Lorraine, CNRS UMR 7274, Nancy, France
| | | | - Esther Lentzen
- Nano-Enabled Medicine and Cosmetics Group, Materials Research and Technology, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Jérôme Bour
- Nano-Enabled Medicine and Cosmetics Group, Materials Research and Technology, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Sivashankar Krishnamoorthy
- Nano-Enabled Medicine and Cosmetics Group, Materials Research and Technology, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Eric Olmos
- The Reactions and Chemical Engineering Laboratory, University of Lorraine, CNRS UMR 7274, Nancy, France
| | - Christian Grandfils
- Interfaculty Research Center of Biomaterials, University of Liège, Liège, Belgium
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11
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Dabiri SMH, Samiei E, Shojaei S, Karperien L, Khun Jush B, Walsh T, Jahanshahi M, Hassanpour S, Hamdi D, Seyfoori A, Ahadian S, Khademhosseini A, Akbari M. Multifunctional Thermoresponsive Microcarriers for High-Throughput Cell Culture and Enzyme-Free Cell Harvesting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103192. [PMID: 34558181 DOI: 10.1002/smll.202103192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/20/2021] [Indexed: 06/13/2023]
Abstract
An effective treatment of human diseases using regenerative medicine and cell therapy approaches requires a large number of cells. Cultivation of cells on microcarriers is a promising approach due to the high surface-to-volume ratios that these microcarriers offer. Here, multifunctional temperature-responsive microcarriers (cytoGel) made of an interpenetrating hydrogel network composed of poly(N-isopropylacrylamide) (PNIPAM), poly(ethylene glycol) diacrylate (PEGDA), and gelatin methacryloyl (GelMA) are developed. A flow-focusing microfluidic chip is used to produce microcarriers with diameters in the range of 100-300 μm and uniform size distribution (polydispersity index of ≈0.08). The mechanical properties and cells adhesion properties of cytoGel are adjusted by changing the composition hydrogel composition. Notably, GelMA regulates the temperature response and enhances microcarrier stiffness. Human-derived glioma cells (U87) are grown on cytoGel in static and dynamic culture conditions with cell viabilities greater than 90%. Enzyme-free cell detachment is achieved at room temperature with up to 70% detachment efficiency. Controlled release of bioactive molecules from cytoGel is accomplished for over a week to showcase the potential use of microcarriers for localized delivery of growth factors to cell surfaces. These microcarriers hold great promise for the efficient expansion of cells for the industrial-scale culture of therapeutic cells.
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Affiliation(s)
- Seyed Mohammad Hossein Dabiri
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Ehsan Samiei
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Shahla Shojaei
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Lucas Karperien
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Bardia Khun Jush
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
| | - Tavia Walsh
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Maryam Jahanshahi
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Sadegh Hassanpour
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - David Hamdi
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Amir Seyfoori
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Mohsen Akbari
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, V8P 5C2, Canada
- Biotechnology Center, Silesian University of Technology, Akademicka 2A, Gliwice, 44-100, Poland
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12
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Kulchar RJ, Denzer BR, Chavre BM, Takegami M, Patterson J. A Review of the Use of Microparticles for Cartilage Tissue Engineering. Int J Mol Sci 2021; 22:10292. [PMID: 34638629 PMCID: PMC8508725 DOI: 10.3390/ijms221910292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 02/06/2023] Open
Abstract
Tissue and organ failure has induced immense economic and healthcare concerns across the world. Tissue engineering is an interdisciplinary biomedical approach which aims to address the issues intrinsic to organ donation by providing an alternative strategy to tissue and organ transplantation. This review is specifically focused on cartilage tissue. Cartilage defects cannot readily regenerate, and thus research into tissue engineering approaches is relevant as a potential treatment option. Cells, scaffolds, and growth factors are three components that can be utilized to regenerate new tissue, and in particular recent advances in microparticle technology have excellent potential to revolutionize cartilage tissue regeneration. First, microspheres can be used for drug delivery by injecting them into the cartilage tissue or joint space to reduce pain and stimulate regeneration. They can also be used as controlled release systems within tissue engineering constructs. Additionally, microcarriers can act as a surface for stem cells or chondrocytes to adhere to and expand, generating large amounts of cells, which are necessary for clinically relevant cell therapies. Finally, a newer application of microparticles is to form them together into granular hydrogels to act as scaffolds for tissue engineering or to use in bioprinting. Tissue engineering has the potential to revolutionize the space of cartilage regeneration, but additional research is needed to allow for clinical translation. Microparticles are a key enabling technology in this regard.
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Affiliation(s)
- Rachel J. Kulchar
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA; (R.J.K.); (B.M.C.)
| | - Bridget R. Denzer
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA;
| | - Bharvi M. Chavre
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA; (R.J.K.); (B.M.C.)
| | - Mina Takegami
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA;
| | - Jennifer Patterson
- Independent Consultant, 3000 Leuven, Belgium
- Biomaterials and Regenerative Medicine Group, IMDEA Materials Institute, 28906 Madrid, Spain
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Zhang G, Bao C, Yi H. Investigation of the temperature responsive behaviors of novel polyaspartamide derivatives bearing alkyl ether-type pendants. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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14
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Kashapov R, Ibragimova A, Pavlov R, Gabdrakhmanov D, Kashapova N, Burilova E, Zakharova L, Sinyashin O. Nanocarriers for Biomedicine: From Lipid Formulations to Inorganic and Hybrid Nanoparticles. Int J Mol Sci 2021; 22:7055. [PMID: 34209023 PMCID: PMC8269010 DOI: 10.3390/ijms22137055] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/25/2021] [Accepted: 06/26/2021] [Indexed: 02/07/2023] Open
Abstract
Encapsulation of cargoes in nanocontainers is widely used in different fields to solve the problems of their solubility, homogeneity, stability, protection from unwanted chemical and biological destructive effects, and functional activity improvement. This approach is of special importance in biomedicine, since this makes it possible to reduce the limitations of drug delivery related to the toxicity and side effects of therapeutics, their low bioavailability and biocompatibility. This review highlights current progress in the use of lipid systems to deliver active substances to the human body. Various lipid compositions modified with amphiphilic open-chain and macrocyclic compounds, peptide molecules and alternative target ligands are discussed. Liposome modification also evolves by creating new hybrid structures consisting of organic and inorganic parts. Such nanohybrid platforms include cerasomes, which are considered as alternative nanocarriers allowing to reduce inherent limitations of lipid nanoparticles. Compositions based on mesoporous silica are beginning to acquire no less relevance due to their unique features, such as advanced porous properties, well-proven drug delivery efficiency and their versatility for creating highly efficient nanomaterials. The types of silica nanoparticles, their efficacy in biomedical applications and hybrid inorganic-polymer platforms are the subject of discussion in this review, with current challenges emphasized.
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Affiliation(s)
- Ruslan Kashapov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Street 8, 420088 Kazan, Russia; (A.I.); (R.P.); (D.G.); (N.K.); (E.B.); (L.Z.); (O.S.)
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15
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Hanga MP, Nienow AW, Murasiewicz H, Pacek AW, Hewitt CJ, Coopman K. Expansion of human mesenchymal stem/stromal cells on temporary liquid microcarriers. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2021; 96:930-940. [PMID: 33776183 PMCID: PMC7984227 DOI: 10.1002/jctb.6601] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Traditional large-scale culture systems for human mesenchymal stem/stromal cells (hMSCs) use solid microcarriers as attachment substrates. Although the use of such substrates is advantageous because of the high surface-to-volume ratio, cell harvest from the same substrates is a challenge as it requires enzymatic treatment, often combined with agitation. Here, we investigated a two-phase system for expansion and non-enzymatic recovery of hMSCs. Perfluorocarbon droplets were dispersed in a protein-rich growth medium and were used as temporary liquid microcarriers for hMSC culture. RESULTS hMSCs successfully attached to these liquid microcarriers, exhibiting similar morphologies to those cultured on solid ones. Fold increases of 3.03 ± 0.98 (hMSC1) and 3.81 ± 0.29 (hMSC2) were achieved on day 9. However, the maximum expansion folds were recorded on day 4 (4.79 ± 0.47 (hMSC1) and 4.856 ± 0.7 (hMSC2)). This decrease was caused by cell aggregation upon reaching confluency due to the contraction of the interface between the two phases. Cell quality, as assessed by differentiation, cell surface marker expression and clonogenic ability, was retained post expansion on the liquid microcarriers. Cell harvesting was achieved non-enzymatically in two steps: first by inducing droplet coalescence and then aspirating the interface. Quality characteristics of hMSCs continued to be retained even after inducing droplet coalescence. CONCLUSION The prospect of a temporary microcarrier that can be used to expand cells and then 'disappear' for cell release without using proteolytic enzymes is a very exciting one. Here, we have demonstrated that hMSCs can attach and proliferate on these perfluorocarbon liquid microcarriers while, very importantly, retaining their quality.
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Affiliation(s)
- Mariana P Hanga
- Department of Biosciences, School of Life and Health SciencesAston UniversityBirminghamUK
- Centre for Biological Engineering, School of AACME, Chemical Engineering DepartmentLoughborough UniversityLoughboroughUK
| | - Alvin W Nienow
- Department of Biosciences, School of Life and Health SciencesAston UniversityBirminghamUK
- Centre for Biological Engineering, School of AACME, Chemical Engineering DepartmentLoughborough UniversityLoughboroughUK
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Halina Murasiewicz
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- Faculty of Chemical Technology and EngineeringWest Pomeranian University of TechnologySzczecinPoland
| | - Andrzej W Pacek
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Christopher J Hewitt
- Department of Biosciences, School of Life and Health SciencesAston UniversityBirminghamUK
- Centre for Biological Engineering, School of AACME, Chemical Engineering DepartmentLoughborough UniversityLoughboroughUK
| | - Karen Coopman
- Centre for Biological Engineering, School of AACME, Chemical Engineering DepartmentLoughborough UniversityLoughboroughUK
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16
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Yu C, Bao H, Chen Z, Li X, Liu X, Wang W, Huang J, Zhang Z. Enhanced and long-term CT imaging tracking of transplanted stem cells labeled with temperature-responsive gold nanoparticles. J Mater Chem B 2021; 9:2854-2865. [PMID: 33711088 DOI: 10.1039/d0tb02997a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gold nanoparticles (AuNPs) have been extensively employed for computed tomography (CT) imaging in cell labeling and tracking because of their strong X-ray attenuation coefficient and excellent biocompatibility. However, the design and synthesis of stimuli-responsive AuNPs to modulate their endocytosis and exocytosis for optimal cell labeling and tracking are promising but challenging. Herein, we report an innovative labeling strategy based on temperature-responsive AuNPs (TRAuNPs) with high cell labeling efficiency and extended intracellular retention duration. We have manifested that the TRAuNP labeling imposes a negligible adverse effect on the function of human mesenchymal stem cells (hMSCs). Further experiment with idiopathic pulmonary fibrosis (IPF) model mice has demonstrated the feasibility of TRAuNP labeling for long time CT imaging tracking of transplanted hMSCs. What's more, the survival of transplanted hMSCs could also be monitored simultaneously using bioluminescence imaging after the expression of luciferase reporter genes. Therefore, we believe that this dual-modal labeling and tracking strategy enables visualization of the transplanted hMSCs in vivo, which may provide an important insight into the role of stem cells in the IPF therapy.
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Affiliation(s)
- Chenggong Yu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
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17
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Fan X, Wu L, Yang L. Fabrication and characterization of thermoresponsive composite carriers: PNIPAAm-grafted glass spheres. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Abstract
Processing capacity and product yield of three-dimensional (3D) smart responsive carriers are markedly superior to those of two-dimensional substrates with the same compositions due to the special structure; therefore, more attempts have been made to develop the 3D intelligent systems in recent decades. A novel preparation strategy of thermoresponsive glass sphere-based composite carriers was reported in this study. First, PNIPAAm copolymers were synthesized by free-radical polymerization of N-isopropylacrylamide (NIPAAm), hydroxypropyl methacrylate (HPM), and 3-trimethoxysilypropyl methacrylate (TMSPM). Then, the copolymer solution was sprayed on the surfaces of glass spheres using a self-made bottom-spray fluidized bed reactor, and the bonding between copolymers and glass spheres was fabricated by thermal annealing to form PNIPAAm copolymer/glass sphere composite carriers. The coating effects of PNIPAAm copolymers on sphere surfaces were investigated, including characteristic functional groups, surface microstructure, grafting density, equilibrium swelling, as well as biocompatibility and potential application for cell culture. The results show that the temperature-responsive PNIPAAm copolymers can be linked to the surfaces of glass spheres by bottom-spray coating technology, and the copolymer layers can be formed on the sphere surfaces. The composite carriers have excellent thermosensitivity and favorable biocompatibility, and they are available for effective cell adhesion and spontaneous cell detachment by the use of smart responsiveness.
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Affiliation(s)
- Xiaoguang Fan
- College of Engineering, Shenyang Agricultural University , Shenyang 110866 , China
| | - Liyan Wu
- College of Engineering, Shenyang Agricultural University , Shenyang 110866 , China
| | - Lei Yang
- School of Petrochemical Engineering, Liaoning Petrochemical University , Fushun 113001 , China
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18
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Poly(N-isopropylacrylamide)/galactomannan from Delonix regia seed thermal responsive graft copolymer via Schiff base reaction. Int J Biol Macromol 2020; 166:144-154. [PMID: 33190824 DOI: 10.1016/j.ijbiomac.2020.10.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 11/23/2022]
Abstract
Aminated poly(N-isopropylacrylamide) (PNIPAm-NH2) was grafted onto oxidized galactomannan polysaccharide extracted from Delonix regia (OXGM) via Schiff base reaction by a simple, rapid synthetic route, deprived of the use of organic solvents. Grafting was confirmed by FTIR and 1H NMR and the self-organizing ability of the obtained nanoparticle copolymers was investigated by dynamic light scattering (DLS). The minimum concentration required for self-organization (CAC) at 25 °C was higher than at 50 °C. Lower critical solution temperature (LCST) was in the range 34-40 °C, depending on both inserted PNIPAm-NH2 molar mass and on the presence of reduced imine bond. Synthesized copolymers are promising candidates for drug delivery as they show good cell viability, particle size around 250 nm and transition temperature closer to that of human body. Reaction success points out to the possibility of use free aldehyde groups of oxidized polysaccharide, not used in the copolymerization, to form a pro-drug with substances that possess NH2 groups in their structure, such as doxorubicin.
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19
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Sponchioni M, Manfredini N, Zanoni A, Scibona E, Morbidelli M, Moscatelli D. Readily Adsorbable Thermoresponsive Polymers for the Preparation of Smart Cell-Culturing Surfaces on Site. ACS Biomater Sci Eng 2020; 6:5337-5345. [PMID: 33455282 DOI: 10.1021/acsbiomaterials.0c01029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The efficacy of several cell therapy products is directly impacted by trypsinization, which can diminish the engrafting capacity of transplanted cells by cleaving cell surface receptors. Thermoresponsive surfaces can alleviate this drawback, enabling temperature-driven and enzyme-free cell harvesting. However, the production of thermoresponsive surfaces relies on dedicated and complex equipment, often involving protocols dependent on high surface activation energies that prevent the development of scalable and universal platforms. In this work, we developed thermoresponsive copolymers incorporating styrene units that enable the copolymer adsorption on tissue culture polystyrene surfaces from an alcoholic solution in a short time, regardless of the vessel size and geometry, and without any particular equipment. In this way, the procedure can be performed with minimal effort by the end user on any surface. The thermoresponsive copolymers were synthesized via reversible addition-fragmentation chain transfer polymerization, providing high control over the polymer microstructure, a key parameter for tuning its cloud point and architecture. Block copolymers comprising a thermoresponsive segment and a polystyrene block exhibited optimal adhesion on conventional cell culture surfaces and permitted a more efficient temperature-mediated harvesting of adipose-derived stromal cells and Chinese hamster ovary cells compared to their statistical counterparts. To expand the application of this polymer deposition protocol to serum-free cell culture, we also considered the polymer modification with the tripeptide arginine-glycine-aspartic acid, known to promote the cell adhesion to synthetic substrates. The incorporation of this peptide enabled the collection in serum-free conditions of intact cell sheets from surfaces prepared shortly before their usage.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 2013 Milano, Italy
| | - Nicolò Manfredini
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 2013 Milano, Italy
| | - Arianna Zanoni
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 2013 Milano, Italy
| | - Ernesto Scibona
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Massimo Morbidelli
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Davide Moscatelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 2013 Milano, Italy
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Wang F, Ren P, Bernaerts KV, Fu Y, Hu W, Zhou N, Zhang T. Thermoresponsive Poly(2-propyl-2-oxazoline) Surfaces of Glass for Nonenzymatic Cell Harvesting. ACS APPLIED BIO MATERIALS 2020; 3:5428-5437. [PMID: 35021716 DOI: 10.1021/acsabm.0c00650] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
As one of the nonenzymatic cell-harvesting technologies, a thermal-responsive surface based on poly(2-oxazoline)s has achieved initial success in supporting the adhesion and thermal-induced detachment of animal cells. However, because of the laborious preparation procedure, this technique was only limited to research purposes. In this work, through using poly(glycidyl methacrylate) (PGMA) as the anchor layer, poly(2-propyl-2-oxazoline)s (PPOx) were grafted onto glass wafers through a facile two-step coating and annealing procedure for nonenzymatic cell harvesting. In the first step, the piranha solution-activated glass wafers were immersed into the chloroform solution of PGMA and then annealed for a given period of time to immobilize PGMA onto the glass wafers through the bonding between epoxy groups and hydroxyl groups. In the second step, the PGMA-coated glass wafers were further immersed into the chloroform solution of carboxyl-functionalized PPOx. After annealing, PPOx were immobilized onto the PGMA layer through the bonding between carboxyl groups and the residual epoxy groups. Atomic force microscopy, X-ray photoelectron spectroscopy, and ellipsometry were used to characterize the modified glass wafers. The results of cytocompatibility evaluation showed that the PPOx-coated glass wafers were almost nontoxic and were able to support the adhesion and proliferation of L929 cells well. By lowering the temperature to 8 °C, L929 and Vero cells were successfully detached from the PPOx-coated glass wafers without any enzymatic treatment. Further cultivation has demonstrated that the cooling procedure had little effect on cell viability, and the cells still retained good viability after harvesting.
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Affiliation(s)
- Faming Wang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
| | - Pengfei Ren
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
| | - Katrien V Bernaerts
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen 6167 RD, The Netherlands
| | - Yifu Fu
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
| | - Wanjun Hu
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
| | - Naizhen Zhou
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
| | - Tianzhu Zhang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096 Jiangsu, PR China
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Kasiński A, Zielińska-Pisklak M, Oledzka E, Sobczak M. Smart Hydrogels - Synthetic Stimuli-Responsive Antitumor Drug Release Systems. Int J Nanomedicine 2020; 15:4541-4572. [PMID: 32617004 PMCID: PMC7326401 DOI: 10.2147/ijn.s248987] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 03/28/2020] [Indexed: 12/19/2022] Open
Abstract
Among modern drug formulations, stimuli-responsive hydrogels also called "smart hydrogels" deserve a special attention. The basic feature of this system is the ability to change their mechanical properties, swelling ability, hydrophilicity, bioactive molecules permeability, etc., influenced by various stimuli, such as temperature, pH, electromagnetic radiation, magnetic field and biological factors. Therefore, stimuli-responsive matrices can be potentially used in tissue engineering, cell cultures and technology of innovative drug delivery systems (DDSs), releasing the active substances under the control of internal or external stimuli. Moreover, smart hydrogels can be used as injectable DDSs, due to gel-sol transition connected with in situ cross-linking process. Innovative smart hydrogel DDSs can be utilized as matrices for targeted therapy, which enhances the effectiveness of tumor chemotherapy and subsequently limits systemic toxicity. External stimulus sensitivity allows remote control over the drug release profile and gel formation. On the other hand, internal factors provide drg accumulation in tumor tissue and reduce the concentration of active drug form in healthy tissue. In this report, we summarise the basic knowledge and chemical strategies for the synthetic smart hydrogel DDSs applied in antitumor therapy.
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Affiliation(s)
- Adam Kasiński
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Warsaw02-097, Poland
| | - Monika Zielińska-Pisklak
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Warsaw02-097, Poland
| | - Ewa Oledzka
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Warsaw02-097, Poland
| | - Marcin Sobczak
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Warsaw02-097, Poland
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22
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Banerjee P, Jana S, Mandal TK. Coulomb interaction-driven UCST in poly(ionic liquid) random copolymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yang L, Fan X, Zhang J, Ju J. Preparation and Characterization of Thermoresponsive Poly( N-Isopropylacrylamide) for Cell Culture Applications. Polymers (Basel) 2020; 12:E389. [PMID: 32050412 PMCID: PMC7077488 DOI: 10.3390/polym12020389] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/07/2020] [Accepted: 01/17/2020] [Indexed: 12/20/2022] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAAm) is a typical thermoresponsive polymer used widely and studied deeply in smart materials, which is attractive and valuable owing to its reversible and remote "on-off" behavior adjusted by temperature variation. PNIPAAm usually exhibits opposite solubility or wettability across lower critical solution temperature (LCST), and it is readily functionalized making it available in extensive applications. Cell culture is one of the most prospective and representative applications. Active attachment and spontaneous detachment of targeted cells are easily tunable by surface wettability changes and volume phase transitions of PNIPAAm modified substrates with respect to ambient temperature. The thermoresponsive culture platforms and matching thermal-liftoff method can effectively substitute for the traditional cell harvesting ways like enzymatic hydrolysis and mechanical scraping, and will improve the stable and high quality of recovered cells. Therefore, the establishment and detection on PNIPAAm based culture systems are of particular importance. This review covers the important developments and recommendations for future work of the preparation and characterization of temperature-responsive substrates based on PNIPAAm and analogues for cell culture applications.
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Affiliation(s)
- Lei Yang
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China; (J.Z.); (J.J.)
| | - Xiaoguang Fan
- College of Engineering, Shenyang Agricultural University, Shenyang 110866, China
| | - Jing Zhang
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China; (J.Z.); (J.J.)
| | - Jia Ju
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China; (J.Z.); (J.J.)
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Zhao Y, Simon C, Daoud Attieh M, Haupt K, Falcimaigne-Cordin A. Reduction-responsive molecularly imprinted nanogels for drug delivery applications. RSC Adv 2020; 10:5978-5987. [PMID: 35497405 PMCID: PMC9049337 DOI: 10.1039/c9ra07512g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/07/2020] [Indexed: 11/21/2022] Open
Abstract
Degradable molecularly imprinted polymers (MIPs) with affinity for S-propranolol were prepared by the copolymerization of methacrylic acid as functional monomer and a disulfide-containing cross-linker, bis(2-methacryloyloxyethyl)disulfide (DSDMA), using bulk polymerization or high dilution polymerization for nanogels synthesis. The specificity and the selectivity of DSDMA-based molecularly imprinted polymers toward S-propranolol were studied in batch binding experiments, and their binding properties were compared to a traditional ethylene glycol dimethacrylate (EDMA)-based MIP. Nanosized MIPs prepared with DSDMA as crosslinker could be degraded into lower molecular weight linear polymers by cleaving the disulfide bonds and thus reversing cross-linking using different reducing agents (NaBH4, DTT, GSH). Turbidity, viscosity, polymer size and IR-spectra were measured to study the polymer degradation. The loss of specific recognition and binding capacity of S-propranolol was also observed after MIP degradation. This phenomenon was applied to modulate the release properties of the MIP. In presence of GSH at its intracellular concentration, the S-propranolol release was higher, showing that these materials could potentially be applied as intracellular controlled drug delivery system.
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Affiliation(s)
- Y Zhao
- Sorbonne Universités - Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory CS 60319 60203 Compiègne Cedex France
| | - C Simon
- Sorbonne Universités - Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory CS 60319 60203 Compiègne Cedex France
| | - M Daoud Attieh
- Sorbonne Universités - Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory CS 60319 60203 Compiègne Cedex France
| | - K Haupt
- Sorbonne Universités - Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory CS 60319 60203 Compiègne Cedex France
| | - A Falcimaigne-Cordin
- Sorbonne Universités - Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory CS 60319 60203 Compiègne Cedex France
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25
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Derakhti S, Safiabadi-Tali SH, Amoabediny G, Sheikhpour M. Attachment and detachment strategies in microcarrier-based cell culture technology: A comprehensive review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109782. [DOI: 10.1016/j.msec.2019.109782] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/11/2019] [Accepted: 05/20/2019] [Indexed: 12/27/2022]
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26
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Yue J, He L, Tang Y, Yang L, Wu B, Ni J. Facile design and development of photoluminescent graphene quantum dots grafted dextran/glycol-polymeric hydrogel for thermoresponsive triggered delivery of buprenorphine on pain management in tissue implantation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 197:111530. [PMID: 31279287 DOI: 10.1016/j.jphotobiol.2019.111530] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/31/2019] [Accepted: 06/05/2019] [Indexed: 12/17/2022]
Abstract
A novel nano-formulations of biocompatible, biodegradable and thermo-responsive graphene quantum dots (GQDs) loaded dextran/poly(N-isopropylacrylamide) (Dex/PNIPAM) copolymeric matrix was synthesized and analyzed the materials characterization, sustained drug delivery system, tissue feasibility in the tissue implantation site. This research report was aimed to grafting and functionalizing thermo-responsive (Dex/PNIPAM) copolymeric composite with presence of graphene quantum dots to achieve thermal responsive drug delivery (TrDD) with no harm effect in the implantation site. The synthesized GQD by using ionic liquid were evaluated by spectroscopic (DLS, PL, XRD and Raman spectroscopy) and Transmission electron microscopic analysis (TEM). The ultra-small GQDs loaded Dex/PNIPAM and was appeared to be asymmetric and open uniform porous structure, which can be significantly favorable for cell uptake and greatly influenced to be an effective drug carrier into the cellular compartment with good fluid flow. The PNIPAM polymeric composite were exhibited sustained and enhanced drug release percentages with increasing temperature at above low critical solution temperature (LCST) is 39 °C comparable to the cumulative drug release profile of below LCST (32 °C), which demonstrated that thermo-responsive polymer was played a significant role in the delivery system. The treated group of GQDs-Dex/PNIPAM was observed that no inflammation and shows noteworthy stromal cell infiltration, demonstrating that the synthesized drug carriers did not harm to the nerves and tissues and only was responsible for the pain management.
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Affiliation(s)
- Jianning Yue
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China.
| | - Liangliang He
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China
| | - Yuanzhang Tang
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China
| | - Liqiang Yang
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China
| | - Baishan Wu
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China
| | - Jiaxiang Ni
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng, Beijing 100053, China
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27
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Nguyen LTB, Odeleye AOO, Chui CY, Baudequin T, Cui Z, Ye H. Development of thermo-responsive polycaprolactone macrocarriers conjugated with Poly(N-isopropyl acrylamide) for cell culture. Sci Rep 2019; 9:3477. [PMID: 30837639 PMCID: PMC6401373 DOI: 10.1038/s41598-019-40242-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 02/12/2019] [Indexed: 01/20/2023] Open
Abstract
Poly(N-isopropyl acrylamide) (PNIPAAm) is a well-known 'smart' material responding to external stimuli such as temperature. PNIPAAm was successfully conjugated to polycaprolactone (PCL) bead surfaces through amidation reaction. Functionalization steps were characterized and confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and Energy Dispersion Spectroscopy. PNIPAAm-conjugated PCL allowed human dermal fibroblast cells (HDF) and mesenchymal stem cells (MSC) to adhere, spread, and grow successfully. By reducing the temperature to 30 °C, more than 70% of HDF were detached from PNIPAAm-conjugated PCL macrocarriers with 85% viability. The cell detachment ratio by trypsin treatment was slightly higher than that induced by reduced temperature, however, cell detachment from PNIPAAm-conjugated macrocarriers by lowering the temperature significantly reduced cell death and increased both cell viability and the recovery potential of the detached cells. HDF attachment and detachment were also observed by Live-Dead staining and phase contrast imaging. The expression of extracellular matrix proteins such as Laminin and Fibronectin was also affected by the trypsinization process but not by the reduced temperature process. Taken together, our results showed that thermo-responsive macrocarriers could be a promising alternative method for the non-invasive detachment of cells, in particular for tissue engineering, clinical applications and the use of bioreactors.
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Affiliation(s)
- Linh T B Nguyen
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Akinlolu O O Odeleye
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
- Adaptimmune Limited, 60 Jubilee Avenue, Milton Park, Abingdon, OX14 4RX, UK
| | - Chih-Yao Chui
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Timothée Baudequin
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Zhanfeng Cui
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK.
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28
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de Almeida Fuzeta M, de Matos Branco AD, Fernandes-Platzgummer A, da Silva CL, Cabral JMS. Addressing the Manufacturing Challenges of Cell-Based Therapies. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2019; 171:225-278. [PMID: 31844924 DOI: 10.1007/10_2019_118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Exciting developments in the cell therapy field over the last decades have led to an increasing number of clinical trials and the first cell products receiving marketing authorization. In spite of substantial progress in the field, manufacturing of cell-based therapies presents multiple challenges that need to be addressed in order to assure the development of safe, efficacious, and cost-effective cell therapies.The manufacturing process of cell-based therapies generally requires tissue collection, cell isolation, culture and expansion (upstream processing), cell harvest, separation and purification (downstream processing), and, finally, product formulation and storage. Each one of these stages presents significant challenges that have been the focus of study over the years, leading to innovative and groundbreaking technological advances, as discussed throughout this chapter.Delivery of cell-based therapies relies on defining product targets while controlling process variable impact on cellular features. Moreover, commercial viability is a critical issue that has had damaging consequences for some therapies. Implementation of cost-effectiveness measures facilitates healthy process development, potentially being able to influence end product pricing.Although cell-based therapies represent a new level in bioprocessing complexity in every manufacturing stage, they also show unprecedented levels of therapeutic potential, already radically changing the landscape of medical care.
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Affiliation(s)
- Miguel de Almeida Fuzeta
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - André Dargen de Matos Branco
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Ana Fernandes-Platzgummer
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Cláudia Lobato da Silva
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.
| | - Joaquim M S Cabral
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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29
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Pereira BHDA, Marques NDN, Lima BLBD, Villetti MA, Balaban RDC. Study of the thermoassociative process in carboxymethylcellulose derivatives. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Tavassoli H, Alhosseini SN, Tay A, Chan PP, Weng Oh SK, Warkiani ME. Large-scale production of stem cells utilizing microcarriers: A biomaterials engineering perspective from academic research to commercialized products. Biomaterials 2018; 181:333-346. [DOI: 10.1016/j.biomaterials.2018.07.016] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/07/2018] [Accepted: 07/10/2018] [Indexed: 12/22/2022]
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31
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Croisfelt FM, Ataide JA, Tundisi LL, Cefali LC, Rebelo MDA, Sánchez JLD, da Costa TG, Lima R, Jozala AF, Chaud MV, d'Ávila MA, Tambourgi EB, Silveira E, Mazzola PG. Characterization of PNIPAAm-co-AAm hydrogels for modified release of bromelain. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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32
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Arghan M, Koukabi N, Kolvari E. Mizoroki-Heck and Suzuki-Miyaura reactions mediated by poly(2-acrylamido-2-methyl-1-propanesulfonic acid)-stabilized magnetically separable palladium catalyst. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4346] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Maryam Arghan
- Department of Chemistry; Semnan University; PO Box 35195-363 Semnan Iran
| | - Nadiya Koukabi
- Department of Chemistry; Semnan University; PO Box 35195-363 Semnan Iran
| | - Eskandar Kolvari
- Department of Chemistry; Semnan University; PO Box 35195-363 Semnan Iran
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33
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Graisuwan W, Puthong S, Zhao H, Kiatkamjornwong S, Theato P, Hoven VP. Thermoresponsive and Active Functional Fiber Mats for Cultured Cell Recovery. Biomacromolecules 2017; 18:3714-3725. [DOI: 10.1021/acs.biomac.7b00382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Hui Zhao
- Institute
for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146, Hamburg, Germany
| | | | - Patrick Theato
- Institute
for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146, Hamburg, Germany
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34
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Drozdov A, deClaville Christiansen J. Mechanical response and equilibrium swelling of temperature-responsive gels. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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35
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Ghasemi S, Andami Z. Polymeric Schiff Base Metal Complexes Based on Thermo-Responsive PNIPAM: Synthesis, Characterization and Catalytic Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201700809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry; College of Sciences; Shiraz University, P.O Box; 7194684795 Shiraz Iran
| | - Zahra Andami
- Department of Chemistry; College of Sciences; Shiraz University, P.O Box; 7194684795 Shiraz Iran
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36
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Ghasemi S, Karim S. Mizoroki–Heck Cross-Coupling Reaction of Haloarenes Mediated by a Well-Controlled Modified Polyacrylamide Brush Grafted Silica/Pd Nanoparticle System. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20160374] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
| | - Saiede Karim
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
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37
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Yuan H, Chi H, Yuan W. Ethyl cellulose amphiphilic graft copolymers with LCST-UCST transition: Opposite self-assembly behavior, hydrophilic-hydrophobic surface and tunable crystalline morphologies. Carbohydr Polym 2016; 147:261-271. [DOI: 10.1016/j.carbpol.2016.04.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 03/20/2016] [Accepted: 04/04/2016] [Indexed: 01/10/2023]
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38
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Li C, Qian Y, Zhao S, Yin Y, Li J. Alginate/PEG based microcarriers with cleavable crosslinkage for expansion and non-invasive harvest of human umbilical cord blood mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:43-53. [DOI: 10.1016/j.msec.2016.03.089] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 03/21/2016] [Accepted: 03/23/2016] [Indexed: 12/18/2022]
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39
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Zhang X, Zhuo R. Redox and pH Dual-Responsive Supramolecular Micelles with a Traditional Polymer Block and a Supramolecular Block for Drug Controlled Release. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600172] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xiaojin Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education; Department of Chemistry; Wuhan University; Wuhan 430072 China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education; Department of Chemistry; Wuhan University; Wuhan 430072 China
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40
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Zhang X, Zhuo R. Dual UV- and pH-Responsive Supramolecular Vesicles Mediated by Host-Guest Interactions for Drug Controlled Release. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600177] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaojin Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education; Department of Chemistry; Wuhan University; Wuhan 430072 China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education; Department of Chemistry; Wuhan University; Wuhan 430072 China
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41
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Du X, Jiang Y, Zhuo R, Jiang X. Thermosensitive and photocleavable polyaspartamide derivatives for drug delivery. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiao Du
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yibo Jiang
- Agrotechnology and Food Sciences; Wageningen University; PO Box 17 6700 AA Wageningen The Netherlands
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
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42
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Wang Y, Lin H, Xiong Z, Wu Z, Yu X, Wang Y, Liu F. Investigation of abnormal thermoresponsive PVDF membranes on casting solution, membrane morphology and filtration performance. RSC Adv 2016. [DOI: 10.1039/c5ra28060e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A temperature sensitive casting solution of P(OEGMA-co-VTMOS) was prepared via an in situ polymerization method. Meanwhile, an interesting thermoresponsive PVDF membrane was obtained from the temperature sensitive casting solution.
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Affiliation(s)
- Yunze Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
- Nano Science and Technology Institute
| | - Haibo Lin
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Zhu Xiong
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Ziyang Wu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Xuemin Yu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Yi Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Fu Liu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
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