1
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Cruz-Hernández C, López-Camacho PY, Basurto-Islas G, Rojas A, Guadarrama P, Martínez-Herrera M. Click synthesis of dendronized malonates for the preparation of amphiphilic dendro[60]fullerenes. Org Biomol Chem 2024; 22:3328-3339. [PMID: 38584463 DOI: 10.1039/d3ob01986a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Fullerene C60 and its malonate derivatives, produced via the Bingel-Hirsch reaction, have displayed promising properties against various diseases. These molecules have great therapeutic potential, but their broad use has been limited due to poor aqueous solubility and toxicity caused by accumulation. In this study, we synthesized new malonates and malonamides attached to first- and second-generation polyester dendrons using click chemistry (CuAAC). These dendrons were then linked at C60 through the Bingel-Hirsch reaction, resulting in an amphiphilic system that retains the hydrophobic nature of C60. The dendronized malonate derivatives showed good reaction yields for the Bingel-Hirsch mono-adducts and were easier to work with than the corresponding malonamides. However, the malonamide derivatives, which were obtained through a multistep reaction sequence, showed moderate yields in the Bingel-Hirsch reaction. Surprisingly, removing acetonide protecting groups from dendritic architectures was more challenging than anticipated, likely due to product decomposition. Only the corresponding free malonate derivatives 25 and 26 were obtained, but in a low yield due to decomposition under the reaction conditions. Meanwhile, it was not possible to obtain the corresponding malonamide derivatives 27 and 28. Currently, efforts are being made to improve the production of the desired molecules and to design new synthesis routes that allow direct access to the desired poly-hydroxylated derivatives. These derivatives will be evaluated as multitarget ligands against Alzheimer's disease, through their use as inhibitors of amyloid β-peptide aggregation, acetylcholinesterase modulators, and antioxidants.
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Affiliation(s)
- Carlos Cruz-Hernández
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Unidad Cuajimalpa, CDMX, 05300, Mexico.
| | - Perla Y López-Camacho
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Unidad Cuajimalpa, CDMX, 05300, Mexico.
| | - Gustavo Basurto-Islas
- División de Ciencias e Ingenierias, Universidad de Guanajuato, Campus León, León Guanajuato, México
| | - Aaron Rojas
- Departamento de Química del Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional 2508, C.P. 07360 Mexico City, Mexico
| | - Patricia Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CDMX, 04510, Mexico
| | - Melchor Martínez-Herrera
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Unidad Cuajimalpa, CDMX, 05300, Mexico.
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2
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Liu C, Hern FY, Shakil A, Temburnikar K, Chambon P, Liptrott N, McDonald TO, Neary M, Flexner C, Owen A, Meyers CF, Rannard SP. Polymer-prodrug conjugates as candidates for degradable, long-acting implants, releasing the water-soluble nucleoside reverse-transcriptase inhibitor emtricitabine. J Mater Chem B 2023; 11:11532-11543. [PMID: 37955203 PMCID: PMC10718295 DOI: 10.1039/d3tb02268d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Circulating, soluble polymer-drug conjugates have been utilised for many years to aid the delivery of sensitive, poorly-soluble or cytotoxic drugs, prolong circulation times or minimise side effects. Long-acting therapeutics are increasing in their healthcare importance, with intramuscular and subcutaneous administration of liquid formulations being most common. Degradable implants also offer opportunities and the use of polymer-prodrug conjugates as implant materials has not been widely reported in this context. Here, the potential for polymer-prodrug conjugates of the water soluble nucleoside reverse transciption inhibitor emtricitabine (FTC) is studied. A novel diol monomer scaffold, allowing variation of prodrug substitution, has been used to form polyesters and polycarbonates by step-growth polymerisation. Materials have been screened for physical properties that enable implant formation, studied for drug release to provide mechanistic insights, and tunable prolonged release of FTC has been demonstrated over a period of at least two weeks under relevant physiological conditions.
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Affiliation(s)
- Chung Liu
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Faye Y Hern
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Anika Shakil
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Kartik Temburnikar
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 North Wolfe St., Baltimore, MD, 21205, USA
| | - Pierre Chambon
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Neill Liptrott
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Tom O McDonald
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Megan Neary
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Charles Flexner
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 North Wolfe St., Baltimore, MD, 21205, USA
| | - Andrew Owen
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Caren Freel Meyers
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 North Wolfe St., Baltimore, MD, 21205, USA
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
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3
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Pérez-Ferreiro M, M. Abelairas A, Criado A, Gómez IJ, Mosquera J. Dendrimers: Exploring Their Wide Structural Variety and Applications. Polymers (Basel) 2023; 15:4369. [PMID: 38006093 PMCID: PMC10674315 DOI: 10.3390/polym15224369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Dendrimers constitute a distinctive category of synthetic materials that bear resemblance to proteins in various aspects, such as discrete structural organization, globular morphology, and nanoscale dimensions. Remarkably, these attributes coexist with the capacity for facile large-scale production. Due to these advantages, the realm of dendrimers has undergone substantial advancement since their inception in the 1980s. Numerous reviews have been dedicated to elucidating this subject comprehensively, delving into the properties and applications of quintessential dendrimer varieties like PAMAM, PPI, and others. Nevertheless, the contemporary landscape of dendrimers transcends these early paradigms, witnessing the emergence of a diverse array of novel dendritic architectures in recent years. In this review, we aim to present a comprehensive panorama of the expansive domain of dendrimers. As such, our focus lies in discussing the key attributes and applications of the predominant types of dendrimers existing today. We will commence with the conventional variants and progressively delve into the more pioneering ones, including Janus, supramolecular, shape-persistent, and rotaxane dendrimers.
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Affiliation(s)
| | | | | | - I. Jénnifer Gómez
- CICA—Centro Interdisciplinar de Química e Bioloxía, Universidade da Coruña, Rúa as Carballeiras, 15071 A Coruña, Spain
| | - Jesús Mosquera
- CICA—Centro Interdisciplinar de Química e Bioloxía, Universidade da Coruña, Rúa as Carballeiras, 15071 A Coruña, Spain
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4
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Alfei S. Cationic Materials for Gene Therapy: A Look Back to the Birth and Development of 2,2-Bis-(hydroxymethyl)Propanoic Acid-Based Dendrimer Scaffolds. Int J Mol Sci 2023; 24:16006. [PMID: 37958989 PMCID: PMC10649874 DOI: 10.3390/ijms242116006] [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: 10/14/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Gene therapy is extensively studied as a realistic and promising therapeutic approach for treating inherited and acquired diseases by repairing defective genes through introducing (transfection) the "healthy" genetic material in the diseased cells. To succeed, the proper DNA or RNA fragments need efficient vectors, and viruses are endowed with excellent transfection efficiency and have been extensively exploited. Due to several drawbacks related to their use, nonviral cationic materials, including lipidic, polymeric, and dendrimer vectors capable of electrostatically interacting with anionic phosphate groups of genetic material, represent appealing alternative options to viral carriers. Particularly, dendrimers are highly branched, nanosized synthetic polymers characterized by a globular structure, low polydispersity index, presence of internal cavities, and a large number of peripheral functional groups exploitable to bind cationic moieties. Dendrimers are successful in several biomedical applications and are currently extensively studied for nonviral gene delivery. Among dendrimers, those derived by 2,2-bis(hydroxymethyl)propanoic acid (b-HMPA), having, unlike PAMAMs, a neutral polyester-based scaffold, could be particularly good-looking due to their degradability in vivo. Here, an overview of gene therapy, its objectives and challenges, and the main cationic materials studied for transporting and delivering genetic materials have been reported. Subsequently, due to their high potential for application in vivo, we have focused on the biodegradable dendrimer scaffolds, telling the history of the birth and development of b-HMPA-derived dendrimers. Finally, thanks to a personal experience in the synthesis of b-HMPA-based dendrimers, our contribution to this field has been described. In particular, we have enriched this work by reporting about the b-HMPA-based derivatives peripherally functionalized with amino acids prepared by us in recent years, thus rendering this paper original and different from the existing reviews.
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Affiliation(s)
- Silvana Alfei
- Department of Pharmacy, University of Genoa, Viale Cembrano 4, 16148 Genova, Italy
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5
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Namata F, Sanz Del Olmo N, Molina N, Malkoch M. Synthesis and Characterization of Amino-Functional Polyester Dendrimers Based On Bis-MPA with Enhanced Hydrolytic Stability and Inherent Antibacterial Properties. Biomacromolecules 2023; 24:858-867. [PMID: 36689269 PMCID: PMC9930107 DOI: 10.1021/acs.biomac.2c01286] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Polyester dendrimers based on 2,2 bis(hydroxymethyl)propionic acid have been reported to be degradable, non-toxic, and exhibit good antimicrobial activity when decorated with cationic charges. However, these systems exhibit rapid depolymerization, from the outer layer inwards in physiological neutral pHs, which potentially restricts their use in biomedical applications. In this study, we present a new generation of amine functional bis-MPA polyester dendrimers with increased hydrolytic stability as well as antibacterial activity for Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) and Pseudomonas aeruginosa (P. aeruginosa) planktonic bacteria strains. These new derivatives show generally good cytocompatibility for the concentrations they are active toward bacteria, in monocyte/macrophage-like cells (Raw 264.7), and human dermal fibroblasts. Fluoride - promoted esterification chemistry, anhydride chemistry, and click reactions were utilized to produce a library from generations 1-3 and with cationic peripheral groups ranging from 6 to 24 groups, respectively. The dendrimers were successfully purified using conventional purification techniques as well as characterized by matrix-assisted laser desorption ionization time-of-flight mass spectroscopy, nuclear magnetic resonance, and size exclusion chromatography. As proof of synthetic versatility, dendritic-linear-dendritic block copolymer were successfully synthesized to display cysteamine peripheral functionalities as well as the scaffolding ability with biomedically relevant lipoic acid and methoxy polyethylene glycol.
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Affiliation(s)
- Faridah Namata
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, 100 44 Stockholm, Sweden
| | - Natalia Sanz Del Olmo
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, 100 44 Stockholm, Sweden
| | - Noemi Molina
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, 100 44 Stockholm, Sweden
| | - Michael Malkoch
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, 100 44 Stockholm, Sweden
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6
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Montiel L, Spada F, Crisp A, Serdjukow S, Carell T, Frischmuth T. Divergent Synthesis of Ultrabright and Dendritic Xanthenes for Enhanced Click-Chemistry-Based Bioimaging. Chemistry 2023; 29:e202202633. [PMID: 36317813 PMCID: PMC10107433 DOI: 10.1002/chem.202202633] [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: 08/23/2022] [Indexed: 12/13/2022]
Abstract
Biorthogonal labelling with fluorescent small molecules is an indispensable tool for diagnostic and biomedical applications. In dye-based 5-ethynyl-2'-deoxyuridine (EdU) cell proliferation assays, augmentation of the fluorescent signal entails an overall enhancement in the sensitivity and quality of the method. To this end, a rapid, divergent synthetic procedure that provides ready-to-click pH-insensitive rhodamine dyes exhibiting outstanding brightness was established. Compared to the shortest available synthesis of related high quantum-yielding rhodamines, two fewer synthetic steps are required. In a head-to-head imaging comparison involving copper(I)-catalyzed azide alkyne cycloaddition reactions with in vitro administered EdU, our new 3,3-difluoroazetidine rhodamine azide outperformed the popular 5-TAMRA-azide, making it among the best available choices when it comes to fluorescent imaging of DNA. In a further exploration of the fluorescence properties of these dyes, a set of bis-MPA dendrons carrying multiple fluorescein or rhodamine units was prepared by branching click chemistry. Fluorescence self-quenching of fluorescein- and rhodamine-functionalized dendrons limited the suitability of the dyes as labels in EdU-based experiments but provided new insights into these effects.
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Affiliation(s)
- Luis Montiel
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany.,Department of Chemistry, Institut für Chemische Epigenetik München (ICEM), Ludwig-Maximilians-Universität München (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Fabio Spada
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Antony Crisp
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Sascha Serdjukow
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Thomas Carell
- Department of Chemistry, Institut für Chemische Epigenetik München (ICEM), Ludwig-Maximilians-Universität München (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
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7
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Chen X, Wang W, Song Y, Zhou Y, Li H, Pan J. Fabrication of 2D nanosheet sorbents through metastable emulsion droplets and subsequent two-step grafting polymerization for efficient blood lead removal in vitro. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129522. [PMID: 35816801 DOI: 10.1016/j.jhazmat.2022.129522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Hemoperfusion is a powerful and yet simple method for lead poisoning treatment, but creation of safe and effective sorbents with excellent selectivity remains a real challenge. To address this, we here construct 2D nanosheet sorbents (BM-SH) through metastable emulsion droplets and subsequent two-step grafting polymerization for efficient blood lead removal in vitro. Metastable emulsion droplets endow typical nanosized sheet-like structure (thickness of 30 nm) and relatively round shape. The consecutive two grafting processes using hydroxyethyl methacrylate (HEMA) and L-cysteine monomer (D-SH) provide BM-SH with a high density of accessible binding sites towards lead ions (Pb2+). A high adsorption capacity of 390.5 mg g-1 and quick capture 97.35 % of Pb2+ within initial 10 min are obtained, surpassing most of the reported sorbents for lead removal. Besides, adsorption distribution coefficient (Kd) of BM-SH among four coexisting metal ions achieved 7792 mL g-1, showing outstanding selectivity toward Pb2+. Importantly, a possible adsorption mechanism is recognized as coordination with carboxyl, sulfydryl and imino groups from L-cysteine, and mercapto ligand as the key chelating agent may be the reason for high Pb2+ affinity. And what's more, BM-SH displays good hemocompatibility and high efficiency of blood lead removal rate (above 86 % in vitro).
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Affiliation(s)
- Xueping Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenqing Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yulin Song
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yongquan Zhou
- Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
| | - Hao Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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8
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Pedro‐Hernández LD, Ramirez‐Ápan T, Martínez‐García M. Synthesis of Bifunctional Tris‐Dendrimers Conjugated with Ibuprofen and Naproxen. ChemistrySelect 2022. [DOI: 10.1002/slct.202201335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Luis Daniel Pedro‐Hernández
- Departament of Orgánic Chemistry Instituto de Química Universidad Nacional Autónoma de México Ciudad Universitaria Circuito Exterior, Coyoacán C.P. 04510 México D.F. México
| | - Teresa Ramirez‐Ápan
- Departament of Orgánic Chemistry Instituto de Química Universidad Nacional Autónoma de México Ciudad Universitaria Circuito Exterior, Coyoacán C.P. 04510 México D.F. México
| | - Marcos Martínez‐García
- Departament of Orgánic Chemistry Instituto de Química Universidad Nacional Autónoma de México Ciudad Universitaria Circuito Exterior, Coyoacán C.P. 04510 México D.F. México
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9
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The cytotoxicity effect of a bis-MPA-based dendron, a bis-MPA-PEG dendrimer and a magnetite nanoparticle on stimulated and non-stimulated human blood lymphocytes. Toxicol In Vitro 2022; 82:105377. [PMID: 35550412 DOI: 10.1016/j.tiv.2022.105377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/09/2022] [Accepted: 05/05/2022] [Indexed: 11/21/2022]
Abstract
Dendrimers and dendrons offer a high surface area and nanoscale size and magnetic nanoparticles can be easily detected and manipulated due to their magnetic properties. The aim of the present study is to investigate the in vitro toxicity of Polyester-8-hydroxyl-1-carboxyl bis-MPA dendron, generation 3 (bis-MPA), Hyperbranched G4-PEG6k-OH (PEG) dendrimer and magnetite nanoparticle (Fe3O4), in human lymphocytes. Cell viability assays were performed on non-stimulated and lipopolysaccharide (LPS) stimulated lymphocytes, after exposure to various concentrations of the nanoparticles, using the Trypan blue assay, Flow Cytometry with 7-Amino Actinomycin D fluorescent dye (7-AAD), as well as the 3-[4,5-dimethylthiazol-2-yl] 2,5 diphenyl tetrazolium bromide (MTT) colorimetric method. The results collectively showed that after 24 h both the dendron and dendrimer at 50 μM concentration exhibited low cytotoxicity to non-stimulated and stimulated lymphocytes. Magnetite nanoparticle (Fe3O4) in concentrations 50-1000 μg/ml revealed negligible cytotoxicity to stimulated and non-stimulated lymphocytes. Moreover, the amount of intercellular Reactive Oxygen Species with or without treatment was assessed by means of the DCFH-DA to evaluate the presence of any oxidative stress. We propose herein simple cytotoxicity tests which indicate that these nanoparticles, after further studying, can serve as ideal drug carriers.
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10
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Liu G, Sun X, Li X, Wang Z. The Bioanalytical and Biomedical Applications of Polymer Modified Substrates. Polymers (Basel) 2022; 14:826. [PMID: 35215740 PMCID: PMC8878960 DOI: 10.3390/polym14040826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 01/11/2023] Open
Abstract
Polymers with different structures and morphology have been extensively used to construct functionalized surfaces for a wide range of applications because the physicochemical properties of polymers can be finely adjusted by their molecular weights, polydispersity and configurations, as well as the chemical structures and natures of monomers. In particular, the specific functions of polymers can be easily achieved at post-synthesis by the attachment of different kinds of active molecules such as recognition ligand, peptides, aptamers and antibodies. In this review, the recent advances in the bioanalytical and biomedical applications of polymer modified substrates were summarized with subsections on functionalization using branched polymers, polymer brushes and polymer hydrogels. The review focuses on their applications as biosensors with excellent analytical performance and/or as nonfouling surfaces with efficient antibacterial activity. Finally, we discuss the perspectives and future directions of polymer modified substrates in the development of biodevices for the diagnosis, treatment and prevention of diseases.
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Affiliation(s)
- Guifeng Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Xiantai Street, Changchun 130033, China; (G.L.); (X.L.)
| | - Xudong Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Jinzhai Road, Hefei 230026, China
| | - Xiaodong Li
- Department of Radiology, China-Japan Union Hospital of Jilin University, Xiantai Street, Changchun 130033, China; (G.L.); (X.L.)
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Jinzhai Road, Hefei 230026, China
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11
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Dao TNT, Kim MG, Koo B, Liu H, Jang YO, Lee HJ, Kim Y, Park Y, Kim HS, Kim C, Shin Y. Chimeric nanocomposites for the rapid and simple isolation of urinary extracellular vesicles. J Extracell Vesicles 2022; 11:e12195. [PMID: 35188341 PMCID: PMC8859916 DOI: 10.1002/jev2.12195] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/03/2021] [Accepted: 01/11/2022] [Indexed: 12/17/2022] Open
Abstract
Cancer cell-derived extracellular vesicles (EVs) are promising biomarkers for cancer diagnosis and prognosis. However, the lack of rapid and sensitive isolation techniques to obtain EVs from clinical samples at a sufficiently high yield limits their practicability. Chimeric nanocomposites of lactoferrin conjugated 2,2-bis(methylol)propionic acid dendrimer-modified magnetic nanoparticles (LF-bis-MPA-MNPs) are fabricated and used for simple and sensitive EV isolation from various biological samples via a combination of electrostatic interaction, physically absorption, and biorecognition between the surfaces of the EVs and the LF-bis-MPA-MNPs. The speed, efficiency, recovery rate, and purity of EV isolation by the LF-bis-MPA-MNPs are superior to those obtained by using established methods. The relative expressions of exosomal microRNAs (miRNAs) from isolated EVs in cancerous cell-derived exosomes are verified as significantly higher than those from noncancerous ones. Finally, the chimeric nanocomposites are used to assess urinary exosomal miRNAs from urine specimens from 20 prostate cancer (PCa), 10 benign prostatic hyperplasia (BPH), patients and 10 healthy controls. Significant up-regulation of miR-21 and miR-346 and down-regulation of miR-23a and miR-122-5p occurs in both groups compared to healthy controls. LF-bis-MPA-MNPs provide a rapid, simple, and high yield method for human excreta analysis in clinical applications.
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Affiliation(s)
- Thuy Nguyen Thi Dao
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Myoung Gyu Kim
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Bonhan Koo
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Huifang Liu
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Yoon Ok Jang
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Hyo Joo Lee
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
| | - Yunlim Kim
- Department of UrologyAsan Medical CenterUniversity of Ulsan College of MedicineSeoulRepublic of Korea
| | - Yun‐Yong Park
- Department of Life ScienceChung‐Ang UniversitySeoulRepublic of Korea
| | - Hyun Soo Kim
- INFUSIONTECH38, Heungan‐daero 427 beon‐gilDongan‐guAnyang‐si14059Korea
- Department of Molecular Cell BiologySungkyunkwan University School of MedicineSuwon16419South Korea
| | - Choung‐Soo Kim
- Department of UrologyAsan Medical CenterUniversity of Ulsan College of MedicineSeoulRepublic of Korea
| | - Yong Shin
- Department of BiotechnologyCollege of Life Science and BiotechnologyYonsei UniversitySeoulRepublic of Korea
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12
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Gonçalves M, Kairys V, Rodrigues J, Tomás H. Polyester Dendrimers Based on Bis-MPA for Doxorubicin Delivery. Biomacromolecules 2022; 23:20-33. [PMID: 34870412 DOI: 10.1021/acs.biomac.1c00455] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Although doxorubicin (DOX) is one of the most used chemotherapeutic drugs due to its efficacy against a wide group of cancer types, it presents severe side effects. As such, intensive research is being carried out to find new nanoscale systems that can help to overcome this problem. Polyester dendrimers based on the monomer 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) are very promising systems for biomedical applications due to their biodegradability properties. In this study, bis-MPA-based dendrimers were, for the first time, evaluated as DOX delivery vehicles. Generations 4 and 5 of bis-MPA-based dendrimers with hydroxyl groups at the surface were used (B-G4-OH and B-G5-OH), together with dendrimers partially functionalized with amine groups (B-G4-NH2/OH and B-G5-NH2/OH). Partial functionalization was chosen because the main purpose was to compare the effect of different functional groups on dendrimers' drug delivery behavior without compromising cell viability, which is often affected by dendrimers' cationic charge. Results revealed that bis-MPA-based dendrimers were cytocompatible, independently of the chemical groups that were present at their surface. The B-G4-NH2/OH and B-G5-NH2/OH dendrimers were able to retain a higher number of DOX molecules, but the in vitro release of the drug was faster. On the contrary, the hydroxyl-terminated dendrimers exhibited a lower loading capacity but were able to deliver the drug in a more sustained manner. These results were in accordance with the cytotoxicity studies performed in several models of cancer cell lines and human mesenchymal stem cells. Overall, the results confirmed that it is possible to tune the drug delivery properties of bis-MPA-based dendrimers by modifying surface functionalization. Moreover, molecular modeling studies provided insights into the nature of the interactions established between the drug and the bis-MPA-based dendrimers─DOX molecules attach to their surface rather than being physically encapsulated.
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Affiliation(s)
- Mara Gonçalves
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal
| | - Visvaldas Kairys
- Department of Bioinformatics, Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio Avenue 7, LT-10257 Vilnius, Lithuania
| | - João Rodrigues
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal
| | - Helena Tomás
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal
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13
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López-Méndez LJ, Palomares-Alonso F, González-Hernández I, Jung-Cook H, Cabrera-Quiñones NC, Guadarrama P. β-cyclodextrin dendritic derivatives as permeation mediators to enhance the in vitro albendazole cysticidal activity by the improvement of the diffusion component. RSC Adv 2022; 12:23153-23161. [PMID: 36090413 PMCID: PMC9382653 DOI: 10.1039/d2ra03314c] [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: 05/26/2022] [Accepted: 08/10/2022] [Indexed: 11/21/2022] Open
Abstract
βCD dendritic derivatives are stable and suitable nanocarriers to enhance ABZ potency by improving solubility and permeation.
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Affiliation(s)
- Luis José López-Méndez
- Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Villa Quietud, Coyoacán, 04960, CDMX, Mexico
| | - Francisca Palomares-Alonso
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, 14269, CDMX, Mexico
| | - Iliana González-Hernández
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, 14269, CDMX, Mexico
| | - Helgi Jung-Cook
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, 14269, CDMX, Mexico
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, 04510, CDMX, Mexico
| | | | - Patricia Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, 04510, CDMX, Mexico
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14
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Deng B, McNelles SA, Da-Ré G, Marando VM, Ros S, Stöver HDH, Adronov A. Neopentyl Esters as Robust Linkers for Introducing Functionality to Bis-MPA Dendrimers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Billy Deng
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Stuart A. McNelles
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Giancarlo Da-Ré
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Victoria M. Marando
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Samantha Ros
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Harald D. H. Stöver
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Alex Adronov
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
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15
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Cruz-Hernández C, López-Méndez LJ, Guadarrama P. Dendronization: A practical strategy to improve the performance of molecular systems used in biomedical applications. Eur J Med Chem 2021; 229:113988. [PMID: 34801269 DOI: 10.1016/j.ejmech.2021.113988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/06/2021] [Accepted: 11/08/2021] [Indexed: 01/05/2023]
Abstract
Nanomedicine is an emerging area that largely influences the efficacy of various therapies through the rational design of new materials exhibiting more targeted behavior. The synthetic effort, the amount of used material, and the cost are critical parameters to bear in mind if the production of the designed material is intended to be scaled for their widespread use. Even though materials science offers diverse options for different types of therapies, it is a difficult task to meet all the parameters mentioned above. The dendronization appears as an insightful approach to incorporate all the known benefits of the dendritic architecture by the attachment of dendrons to therapeutic agents, but in a much more affordable manner in terms of synthetic effort, amount of material, and cost. As will be presented, the most common dendrons used for biomedical applications are polyamide, polyester, carbosilane, polyether, and glycol-type, which are bonded to biological active molecules (BAMs), or molecular nanoplatforms (MPs) by hydrolysable bonds. Also relevant is the fact that the incorporation of dendrons not larger than third generation (G3) is sufficient to improve essential properties of these molecular systems, such as aqueous solubility, stability, and cellular internalization, among others. The type of dendron and its location on the BAMs or MPs, similar to placing a Lego piece on a model, will be decisive for obtaining the desired properties.
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Affiliation(s)
- Carlos Cruz-Hernández
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Luis José López-Méndez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Patricia Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
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16
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Chen B, Syed MN, Daymon SP, Olson BG, Kareem OO, Giesen JA, Fahs GB, Moore RR, Grayson SM, Nazarenko S. Insights and comparison of structure–bulk property relationships in low generation hydroxylated polyester dendrimer and hyperbranched polymer prepared from bis-MPA monomer. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Xing W, Tang Y. On mechanical properties of nanocomposite hydrogels: Searching for superior properties. NANO MATERIALS SCIENCE 2021. [DOI: 10.1016/j.nanoms.2021.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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18
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Morcuende-Ventura V, Hermoso-Durán S, Abian-Franco N, Pazo-Cid R, Ojeda JL, Vega S, Sanchez-Gracia O, Velazquez-Campoy A, Sierra T, Abian O. Fluorescence Liquid Biopsy for Cancer Detection Is Improved by Using Cationic Dendronized Hyperbranched Polymer. Int J Mol Sci 2021; 22:6501. [PMID: 34204408 PMCID: PMC8234380 DOI: 10.3390/ijms22126501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 12/19/2022] Open
Abstract
(1) Background: Biophysical techniques applied to serum samples characterization could promote the development of new diagnostic tools. Fluorescence spectroscopy has been previously applied to biological samples from cancer patients and differences from healthy individuals were observed. Dendronized hyperbranched polymers (DHP) based on bis(hydroxymethyl)propionic acid (bis-MPA) were developed in our group and their potential biomedical applications explored. (2) Methods: A total of 94 serum samples from diagnosed cancer patients and healthy individuals were studied (20 pancreatic ductal adenocarcinoma, 25 blood donor, 24 ovarian cancer, and 25 benign ovarian cyst samples). (3) Results: Fluorescence spectra of serum samples (fluorescence liquid biopsy, FLB) in the presence and the absence of DHP-bMPA were recorded and two parameters from the signal curves obtained. A secondary parameter, the fluorescence spectrum score (FSscore), was calculated, and the diagnostic model assessed. For pancreatic ductal adenocarcinoma (PDAC) and ovarian cancer, the classification performance was improved when including DHP-bMPA, achieving high values of statistical sensitivity and specificity (over 85% for both pathologies). (4) Conclusions: We have applied FLB as a quick, simple, and minimally invasive promising technique in cancer diagnosis. The classification performance of the diagnostic method was further improved by using DHP-bMPA, which interacted differentially with serum samples from healthy and diseased subjects. These preliminary results set the basis for a larger study and move FLB closer to its clinical application, providing useful information for the oncologist during patient diagnosis.
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Affiliation(s)
- Violeta Morcuende-Ventura
- Instituto de Nanociencia y Materiales de Aragón (INMA), Química Orgánica, Facultad de Ciencias, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain;
- Joint Units IQFR-CSIC-BIFI and GBsC-CSIC-BIFI, Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018 Zaragoza, Spain; (S.H.-D.), (S.V.), (A.V.-C.)
| | - Sonia Hermoso-Durán
- Joint Units IQFR-CSIC-BIFI and GBsC-CSIC-BIFI, Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018 Zaragoza, Spain; (S.H.-D.), (S.V.), (A.V.-C.)
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), 50009 Zaragoza, Spain
| | | | - Roberto Pazo-Cid
- Hospital Universitario Miguel Servet (HUMS), Paseo Isabel la Católica, 1-3, 50009 Zaragoza, Spain;
| | - Jorge L. Ojeda
- Department of Statistical Methods, Universidad de Zaragoza, 50009 Zaragoza, Spain;
| | - Sonia Vega
- Joint Units IQFR-CSIC-BIFI and GBsC-CSIC-BIFI, Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018 Zaragoza, Spain; (S.H.-D.), (S.V.), (A.V.-C.)
| | | | - Adrian Velazquez-Campoy
- Joint Units IQFR-CSIC-BIFI and GBsC-CSIC-BIFI, Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018 Zaragoza, Spain; (S.H.-D.), (S.V.), (A.V.-C.)
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), 50009 Zaragoza, Spain
- Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, 50009 Zaragoza, Spain
- Centro de Investigación Biomédica en Red en el Área Temática de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Fundación ARAID, Gobierno de Aragón, 50018 Zaragoza, Spain
| | - Teresa Sierra
- Instituto de Nanociencia y Materiales de Aragón (INMA), Química Orgánica, Facultad de Ciencias, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain;
| | - Olga Abian
- Joint Units IQFR-CSIC-BIFI and GBsC-CSIC-BIFI, Institute of Biocomputation and Physics of Complex Systems (BIFI), Universidad de Zaragoza, 50018 Zaragoza, Spain; (S.H.-D.), (S.V.), (A.V.-C.)
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), 50009 Zaragoza, Spain
- Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, 50009 Zaragoza, Spain
- Centro de Investigación Biomédica en Red en el Área Temática de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Instituto Aragonés de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
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19
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Marks MA, Kalaitzidou K, Gutekunst WR. Synthesis and Characterization of Cationic Dendrimer-PDMS Hybrids. Macromol Rapid Commun 2021; 42:e2000652. [PMID: 33368765 PMCID: PMC8085078 DOI: 10.1002/marc.202000652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/01/2020] [Indexed: 12/19/2022]
Abstract
A modular strategy for the synthesis of dendron-linear polymer hybrids comprised of a flexible polydimethylsiloxane (PDMS) midblock with cationic 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) dendron end groups is developed. The invention of a scalable methodology to access quaternary ammonium carboxylate building blocks and their direct use in esterification chemistry enables rapid access to cationic bis-MPA dendrons. The convergent click coupling of highly charged dendrons to hydrophobic PDMS chain-ends gives a 12-membered family of hybrids that are comprised of different dendron generations (G1-3) and quaternary ammonium alkyl chain lengths (C4 , C8 , C12 , C16 ). This provides a library of materials with variable hydrophobicity, charge density, and chain-end valency. The physical behavior of the dendron-linear PDMS hybrid copolymers significantly changes after introduction of the cationic dendron end-groups and leads to soft-solid materials as a result of inhibited chain mobility. These PDMS-dendron hybrids are expected to behave as surface-active antimicrobial additives in bulk cross-linked silicone systems.
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Affiliation(s)
- Monica A Marks
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kyriaki Kalaitzidou
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Will R Gutekunst
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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20
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Xing W, Ghahfarokhi AJ, Xie C, Naghibi S, Campbell JA, Tang Y. Mechanical Properties of a Supramolecular Nanocomposite Hydrogel Containing Hydroxyl Groups Enriched Hyper-Branched Polymers. Polymers (Basel) 2021; 13:805. [PMID: 33800715 PMCID: PMC7961438 DOI: 10.3390/polym13050805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 11/16/2022] Open
Abstract
Owing to highly tunable topology and functional groups, hyper-branched polymers are a potential candidate for toughening agents, for achieving supramolecular interactions with hydrogel networks. However, their toughening effects and mechanisms are not well understood. Here, by means of tensile and pure shear testings, we characterise the mechanics of a nanoparticle-hydrogel hybrid system that incorporates a hyper-branched polymer (HBP) with abundant hydroxyl end groups into the matrix of the polyacrylic acid (PAA) hydrogel. We found that the third and fourth generations of HBP are more effective than the second one in terms of strengthening and toughening effects. At a HBP content of 14 wt%, compared to that of the pure PAA hydrogel, strengths of the hybrid hydrogels with the third and fourth HBPs are 2.3 and 2.5 times; toughnesses are increased by 525% and 820%. However, for the second generation, strength is little improved, and toughness is increased by 225%. It was found that the stiffness of the hybrid hydrogel is almost unchanged relative to that of the PAA hydrogel, evidencing the weak characteristic of hydrogen bonds in this system. In addition, an outstanding self-healing feature was observed, confirming the fast reforming nature of broken hydrogen bonds. For the hybrid hydrogel, the critical size of failure zone around the crack tip, where serious viscous dissipation occurs, is related to a fractocohesive length, being about 0.62 mm, one order of magnitude less than that of other tough double-network hydrogels. This study can promote the application of hyper-branched polymers in the rapid evolving field of hydrogels for improved performance.
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Affiliation(s)
- Wenjin Xing
- College of Science and Engineering, Flinders University, Clovelly Park, Adelaide, SA 5042, Australia; (W.X.); (A.J.G.); (S.N.)
| | - Amin Jamshidi Ghahfarokhi
- College of Science and Engineering, Flinders University, Clovelly Park, Adelaide, SA 5042, Australia; (W.X.); (A.J.G.); (S.N.)
- Institute for NanoScale Science and Technology, Flinders University, Bedford Park, Adelaide, SA 5042, Australia;
| | - Chaoming Xie
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China;
| | - Sanaz Naghibi
- College of Science and Engineering, Flinders University, Clovelly Park, Adelaide, SA 5042, Australia; (W.X.); (A.J.G.); (S.N.)
- Institute for NanoScale Science and Technology, Flinders University, Bedford Park, Adelaide, SA 5042, Australia;
| | - Jonathan A. Campbell
- Institute for NanoScale Science and Technology, Flinders University, Bedford Park, Adelaide, SA 5042, Australia;
| | - Youhong Tang
- College of Science and Engineering, Flinders University, Clovelly Park, Adelaide, SA 5042, Australia; (W.X.); (A.J.G.); (S.N.)
- Institute for NanoScale Science and Technology, Flinders University, Bedford Park, Adelaide, SA 5042, Australia;
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21
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Li J, Zhuang G, Huang Q, Wang J, Wu Y, Du P. A Conjugated Molecular Crown Containing a Single Pyrenyl Unit: Synthesis, Characterization, and Photophysical Properties. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202012011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Kareem OO, Rahmani F, Hyman JA, Keller CB, Pasquinelli MA, Savin DA, Grayson SM. Solution size variation of linear and dendritic bis-MPA analogs using DOSY- 1H NMR. Polym Chem 2021. [DOI: 10.1039/d0py01070g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The size and size variability of bis-MPA dendrimers is shown to be smaller by DOSY-1H NMR than their linear analog, PBBM. This was accomplished using five different solvents and for the first time confirms, experimentally, what has been theorized.
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Affiliation(s)
| | - Farzin Rahmani
- Department of Forest Biomaterials
- Biltmore Hall
- North Carolina State University
- Raleigh
- USA
| | - Jason A. Hyman
- Department of Chemistry
- Percival Stern Hall
- Tulane University
- New Orleans
- USA
| | | | | | - Daniel A. Savin
- Department of Chemistry
- Leigh Hall
- University of Florida
- Gainesville
- USA
| | - Scott M. Grayson
- Department of Chemistry
- Percival Stern Hall
- Tulane University
- New Orleans
- USA
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Korake S, Shaikh A, Salve R, Gajbhiye KR, Gajbhiye V, Pawar A. Biodegradable dendritic Boltorn™ nanoconstructs: A promising avenue for cancer theranostics. Int J Pharm 2020; 594:120177. [PMID: 33333177 DOI: 10.1016/j.ijpharm.2020.120177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/13/2022]
Abstract
The family of Boltorn™ H40 dendrimers is an imperative subclass of hyperbranched biodegradable polymers (HBPs), which has received mounting attention as a result of its inimitable chemical, physical and biodegradable properties. These properties embrace three-dimensional dendrimeric nanoarchitecture to avert tanglement between polymer branches, adequate spatial cavities for increased encapsulation of guest molecules, good solubility as well as low viscosity to improve processability, and a huge number of surface functional groups for chemical manipulations. Similarly, low toxicity, non-immunogenicity, and natural biodegradation are significant and critical advantages in therapeutic applications as compared to other dendritic polymers. All these characteristics of Boltorn™ H40 are of pronounced importance for planning and developing advanced targeted cargo delivery carriers for cancer therapy. The present review highlights the applications of Boltorn™ H40 HBPs for the transport of chemotherapeutic agents to manage various types of cancers.
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Affiliation(s)
- S Korake
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth Deemed University, Erandwane, Pune 411038, India
| | - A Shaikh
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India
| | - R Salve
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India
| | - K R Gajbhiye
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth Deemed University, Erandwane, Pune 411038, India
| | - V Gajbhiye
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India.
| | - A Pawar
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth Deemed University, Erandwane, Pune 411038, India.
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24
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Qian Y, Wei J, Wang Y, You D, Lin F, Yue W, Bi Y. Thermal and enzymatic dual‐stimuli responsive linear‐dendritic block copolymers based on poly(
N
‐vinylcaprolactam). POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yangyang Qian
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Junwu Wei
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Yujia Wang
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Dan You
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Feng Lin
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Wenzhe Yue
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Yunmei Bi
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
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25
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Alfei S, Schito AM. From Nanobiotechnology, Positively Charged Biomimetic Dendrimers as Novel Antibacterial Agents: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2022. [PMID: 33066468 PMCID: PMC7602242 DOI: 10.3390/nano10102022] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 01/27/2023]
Abstract
The alarming increase in antimicrobial resistance, based on the built-in abilities of bacteria to nullify the activity of current antibiotics, leaves a growing number of bacterial infections untreatable. An appealing approach, advanced in recent decades, concerns the development of novel agents able to interact with the external layers of bacteria, causing irreparable damage. Regarding this, some natural cationic antimicrobial peptides (CAMPs) have been reconsidered, and synthetic cationic polymers, mimicking CAMPs and able to kill bacteria by non-specific detrimental interaction with the negative bacterial membranes, have been proposed as promising solutions. Lately, also dendrimers were considered suitable macromolecules for the preparation of more advanced cationic biomimetic nanoparticles, able to harmonize the typical properties of dendrimers, including nanosize, mono-dispersion, long-term stability, high functionality, and the non-specific mechanism of action of CAMPs. Although cationic dendrimers are extensively applied in nanomedicine for drug or gene delivery, their application as antimicrobial agents is still in its infancy. The state of the art of their potential applications in this important field has therefore been reviewed here, with particular attention to the innovative case studies in the literature including also amino acid-modified polyester-based dendrimers, practically unexplored as membrane-active antimicrobials and able to kill bacteria on contact.
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Affiliation(s)
- Silvana Alfei
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano 4, I-16148 Genova, Italy
| | - Anna Maria Schito
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Viale Benedetto XV, 6, I-16132 Genova, Italy;
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26
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Alfei S, Catena S, Turrini F. Biodegradable and biocompatible spherical dendrimer nanoparticles with a gallic acid shell and a double-acting strong antioxidant activity as potential device to fight diseases from "oxidative stress". Drug Deliv Transl Res 2020; 10:259-270. [PMID: 31628606 DOI: 10.1007/s13346-019-00681-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Gallic acid (GA) is a natural polyphenol with remarkable antioxidant power present in several vegetables and fruits. A normal feeding regime leads to a daily intake of GA which is reasonably regarded as "natural" and "safe" for humans. It owns strong potentials as alternative to traditional drugs to treat several diseases triggered by oxidative stress (OS), but poor gastrointestinal absorbability, pharmacokinetic drawbacks, and fast metabolism limit its clinical application. In this work, a fifth-generation polyester-based dendrimer was firstly prepared as a better absorbable carrier to protect and deliver GA. Then, by its peripheral esterification with GA units, a GA-enriched delivering system (GAD) with remarkable antioxidant power and high potential against diseases from OS was achieved. Scanning electron microscopy results and dynamic light scattering analysis revealed particles with an average size around 387 and 375 nm, respectively, and an extraordinarily spherical morphology. These properties, by determining a large particles surface area, typically favour higher systemic residence time and bio-efficiency. Z-potential of - 25 mV suggests satisfactory stability in solution with tendency to form megamers and low polydispersity index. GAD showed intrinsic antioxidant power, higher than GA by 4 times and like prodrugs, and it can carry contemporary several bioactive GA units versus cells. In physiological condition, the action of pig liver esterase (PLE), selected as a model of cells esterase, hydrolyses GAD to non-cytotoxic small molecules, thus setting free the bioactive GA units, for further antioxidant effects. Cytotoxicity studies performed on two cell lines demonstrated a high cell viability. Graphical Abstract Graphical Abstract.
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Affiliation(s)
- Silvana Alfei
- Dipartimento di Farmacia, Sezione di Chimica e Tecnologie Farmaceutiche e Alimentari, Università di Genova, Viale Cembrano 4, I-16148, Genova, Italy.
| | - Silvia Catena
- Dipartimento di Farmacia, Sezione di Chimica e Tecnologie Farmaceutiche e Alimentari, Università di Genova, Viale Cembrano 4, I-16148, Genova, Italy
| | - Federica Turrini
- Dipartimento di Farmacia, Sezione di Chimica e Tecnologie Farmaceutiche e Alimentari, Università di Genova, Viale Cembrano 4, I-16148, Genova, Italy
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27
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Kareem OO, Daymon SP, Keller CB, Chen B, Nazarenko S, Grayson SM. Synthesis and Characterization of Linear, Homopolyester, Benzoyl-Protected Bis-MPA. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Oluwapelumi O. Kareem
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana 70118, United States
| | - Samantha P. Daymon
- Department of Polymer Science and Engineering, Shelby F. Thames Polymer Science Research Center, University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Christopher B. Keller
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana 70118, United States
| | - Beibei Chen
- Department of Polymer Science and Engineering, Shelby F. Thames Polymer Science Research Center, University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Sergei Nazarenko
- Department of Polymer Science and Engineering, Shelby F. Thames Polymer Science Research Center, University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Scott M. Grayson
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana 70118, United States
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28
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Giesen JA, Grayson SM. Selective monobenzylation of 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) to yield an AB linear monomer and analogous linear oligomers. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Ogelman R, Hwang IW, Oh WC. Cloaked caged glutamate eliminates off-target GABA-A receptor antagonism and opens a new door in neuroscience. Lab Anim (NY) 2020; 49:177-179. [PMID: 32461595 DOI: 10.1038/s41684-020-0555-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Roberto Ogelman
- Department of Pharmacology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - In-Wook Hwang
- Department of Pharmacology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - Won Chan Oh
- Department of Pharmacology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA.
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30
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García-Gallego S, Andrén OCJ, Malkoch M. Accelerated Chemoselective Reactions to Sequence-Controlled Heterolayered Dendrimers. J Am Chem Soc 2020; 142:1501-1509. [PMID: 31895981 DOI: 10.1021/jacs.9b11726] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chemoselective reactions are a highly desirable approach to generate well-defined functional macromolecules. Their extraordinary efficiency and selectivity enable the development of flawless structures, such as dendrimers, with unprecedented structure-to-property capacity but with typically tedious synthetic protocols. Here we demonstrate the potency of chemoselective reactions to accomplish sequence-controlled heterolayered dendrimers. An accurate accelerated design of bis-MPA monomers with orthogonally complementary moieties and a wisely selected chemical toolbox generated highly complex monodisperse dendrimers through simplified protocols. The versatility of the strategy was proved by obtaining different dendritic families with different properties after altering the order of addition of the monomers. Moreover, we evaluated the feasibility of the one-pot approach toward these heterolayered dendrimers as proof-of-concept.
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Affiliation(s)
- Sandra García-Gallego
- Royal Institute of Technology , School of Chemical Science and Engineering, Fiber and Polymer Technology , Teknikringen 56-58 , SE-100 44 Stockholm , Sweden.,Department of Organic and Inorganic Chemistry and Research Institute in Chemistry "Andrés M. del Río" (IQAR) , University of Alcalá , 28805 Madrid , Spain
| | - Oliver C J Andrén
- Royal Institute of Technology , School of Chemical Science and Engineering, Fiber and Polymer Technology , Teknikringen 56-58 , SE-100 44 Stockholm , Sweden
| | - Michael Malkoch
- Royal Institute of Technology , School of Chemical Science and Engineering, Fiber and Polymer Technology , Teknikringen 56-58 , SE-100 44 Stockholm , Sweden
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31
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Zhang X, Dai Y, Dai G. Advances in amphiphilic hyperbranched copolymers with an aliphatic hyperbranched 2,2-bis(methylol)propionic acid-based polyester core. Polym Chem 2020. [DOI: 10.1039/c9py01608b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphiphilic hyperbranched copolymers with an aliphatic hyperbranched 2,2-bis(methylol)propionic acid-based polyester core were highlighted.
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Affiliation(s)
- Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| | - Guofei Dai
- Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake
- Jiangxi Institute of Water Sciences
- Nanchang 330029
- China
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32
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33
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Rozenbaum R, Andrén OCJ, van der Mei HC, Woudstra W, Busscher HJ, Malkoch M, Sharma PK. Penetration and Accumulation of Dendrons with Different Peripheral Composition in Pseudomonas aeruginosa Biofilms. NANO LETTERS 2019; 19:4327-4333. [PMID: 31142116 PMCID: PMC6628176 DOI: 10.1021/acs.nanolett.9b00838] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/28/2019] [Indexed: 06/09/2023]
Abstract
Multidrug resistant bacterial infections threaten to become the number one cause of death by the year 2050. Development of antimicrobial dendritic polymers is considered promising as an alternative infection control strategy. For antimicrobial dendritic polymers to effectively kill bacteria residing in infectious biofilms, they have to penetrate and accumulate deep into biofilms. Biofilms are often recalcitrant to antimicrobial penetration and accumulation. Therefore, this work aims to determine the role of compact dendrons with different peripheral composition in their penetration into Pseudomonas aeruginosa biofilms. Red fluorescently labeled dendrons with pH-responsive NH3+ peripheral groups initially penetrated faster from a buffer suspension at pH 7.0 into the acidic environment of P. aeruginosa biofilms than dendrons with OH or COO- groups at their periphery. In addition, dendrons with NH3+ peripheral groups accumulated near the top of the biofilm due to electrostatic double-layer attraction with negatively charged biofilm components. However, accumulation of dendrons with OH and COO- peripheral groups was more evenly distributed across the depth of the biofilms than NH3+ composed dendrons and exceeded accumulation of NH3+ composed dendrons after 10 min of exposure. Unlike dendrons with NH3+ groups at their periphery, dendrons with OH or COO- peripheral groups, lacking strong electrostatic double-layer attraction with biofilm components, were largely washed-out during exposure to PBS without dendrons. Thus, penetration and accumulation of dendrons into biofilms is controlled by their peripheral composition through electrostatic double-layer interactions, which is an important finding for the further development of new antimicrobial or antimicrobial-carrying dendritic polymers.
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Affiliation(s)
- René
T. Rozenbaum
- Department
of Biomedical Engineering, University of
Groningen and University Medical Center Groningen, P.O. Box 196, 9700 AD, Groningen, The Netherlands
| | - Oliver C. J. Andrén
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, 10044 Stockholm, Sweden
| | - Henny C. van der Mei
- Department
of Biomedical Engineering, University of
Groningen and University Medical Center Groningen, P.O. Box 196, 9700 AD, Groningen, The Netherlands
| | - Willem Woudstra
- Department
of Biomedical Engineering, University of
Groningen and University Medical Center Groningen, P.O. Box 196, 9700 AD, Groningen, The Netherlands
| | - Henk J. Busscher
- Department
of Biomedical Engineering, University of
Groningen and University Medical Center Groningen, P.O. Box 196, 9700 AD, Groningen, The Netherlands
| | - Michael Malkoch
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, 10044 Stockholm, Sweden
| | - Prashant K. Sharma
- Department
of Biomedical Engineering, University of
Groningen and University Medical Center Groningen, P.O. Box 196, 9700 AD, Groningen, The Netherlands
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34
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McNelles SA, Marando VM, Adronov A. Globular Polymer Grafts Require a Critical Size for Efficient Molecular Sieving of Enzyme Substrates. Angew Chem Int Ed Engl 2019; 58:8448-8453. [PMID: 30893493 DOI: 10.1002/anie.201902864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Stuart A. McNelles
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Victoria M. Marando
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Alex Adronov
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
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35
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Zhang Y, Andrén OCJ, Nordström R, Fan Y, Malmsten M, Mongkhontreerat S, Malkoch M. Off-Stoichiometric Thiol-Ene Chemistry to Dendritic Nanogel Therapeutics. ADVANCED FUNCTIONAL MATERIALS 2019; 29:1806693. [PMID: 35865651 PMCID: PMC9286377 DOI: 10.1002/adfm.201806693] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/28/2019] [Indexed: 05/03/2023]
Abstract
A novel platform of dendritic nanogels is herein presented, capitalizing on the self-assembly of allyl-functional polyesters based on dendritic-linear-dendritic amphiphiles followed by simple cross-linking with complementary monomeric thiols via UV initiated off-stoichiometric thiol-ene chemistry. The facile approach enabled multigram creation of allyl reactive nanogel precursors, in the size range of 190-295 nm, being readily available for further modifications to display a number of core functionalities while maintaining the size distribution and characteristics of the master batch. The nanogels are evaluated as carriers of a spread of chemotherapeutics by customizing the core to accommodate each individual cargo. The resulting nanogels are biocompatible, displaying diffusion controlled release of cargo, maintained therapeutic efficacy, and decreased cargo toxic side effects. Finally, the nanogels are found to successfully deliver pharmaceuticals into a 3D pancreatic spheroids tumor model.
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Affiliation(s)
- Yuning Zhang
- KTH Royal Institute of TechnologyDepartment of Fibre and Polymer TechnologySE‐100 44StockholmSweden
| | - Oliver C. J. Andrén
- KTH Royal Institute of TechnologyDepartment of Fibre and Polymer TechnologySE‐100 44StockholmSweden
| | - Randi Nordström
- Department of PharmacyUppsala UniversitySE‐751 23UppsalaSweden
| | - Yanmiao Fan
- KTH Royal Institute of TechnologyDepartment of Fibre and Polymer TechnologySE‐100 44StockholmSweden
| | - Martin Malmsten
- Department of PharmacyUppsala UniversitySE‐751 23UppsalaSweden
| | | | - Michael Malkoch
- KTH Royal Institute of TechnologyDepartment of Fibre and Polymer TechnologySE‐100 44StockholmSweden
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36
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McNelles SA, Marando VM, Adronov A. Globular Polymer Grafts Require a Critical Size for Efficient Molecular Sieving of Enzyme Substrates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Stuart A. McNelles
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Victoria M. Marando
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Alex Adronov
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
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37
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Zhang X, Moku B, Leng J, Rakesh KP, Qin HL. 2-Azidoethane-1-sulfonylfluoride (ASF): A VersatileBis-clickable Reagent for SuFEx and CuAAC Click Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801825] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xu Zhang
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan 430070 China
| | - Balakrishna Moku
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan 430070 China
| | - Jing Leng
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan 430070 China
| | - K. P. Rakesh
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan 430070 China
| | - Hua-Li Qin
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan 430070 China
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38
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Baimani N, Aberoomand Azar P, Waqif Husain S, Ahmad Panahi H, Mehramizi A. Ultrasensitive separation of methylprednisolone acetate using a photoresponsive molecularly imprinted polymer incorporated polyester dendrimer based on magnetic nanoparticles. J Sep Sci 2019; 42:1468-1476. [PMID: 30689289 DOI: 10.1002/jssc.201801093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 12/19/2022]
Abstract
We developed an approach for the use of polyester dendrimer during the imprinting process to raise the number of recognized sites in the polymer matrix and improve its identification ability. Photoresponsive molecularly imprinted polymers were synthesized on modified magnetic nanoparticles involving polyester dendrimer which uses the reactivity between allyl glycidyl ether and acrylic acid for the high-yielding assembly by surface polymerization. The photoresponsive molecularly imprinted polymers were constructed using methylprednisoloneacetate as the template, water-soluble azobenzene involving 5-[(4, 3-(methacryloyloxy) phenyl) diazenyl] dihydroxy aniline as the novel functional monomer, and ethylene glycol dimethacrylate as the cross-linker. Through the evaluation of a series of features of spectroscopic and nano-structural, this sorbent showed excellent selective adsorption, recognition for the template, and provided a highly selective and sensitive strategy for determining the methylprednisoloneacetate in real and pharmaceutical samples. In addition, this sorbent according to good photo-responsive features and specific affinity to methylprednisoloneacetate with high recognition ability, represented higher binding capacity, a more extensive specific area, and faster mass transfer rate than its corresponding surface molecularly imprinted polymer.
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Affiliation(s)
- Nasim Baimani
- Department of Analytical Chemistry, Faculty of Basic Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Parviz Aberoomand Azar
- Department of Analytical Chemistry, Faculty of Basic Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Syed Waqif Husain
- Department of Analytical Chemistry, Faculty of Basic Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Homayon Ahmad Panahi
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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39
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Yao Q, Wang Y, Chen H, Huang H, Liu B. Mechanism of High Chrome Uptake of Tanning Pickled Pelt by Carboxyl‐Terminated Hyper‐Branched Polymer Combination Chrome Tanning. ChemistrySelect 2019. [DOI: 10.1002/slct.201802952] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi Yao
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences No. 9, 4th section of South Renmin Road, Chengdu, Sichuan Province 610041 P.R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District, Beijing 100049 P.R.China
| | - Yetao Wang
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences No. 9, 4th section of South Renmin Road, Chengdu, Sichuan Province 610041 P.R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District, Beijing 100049 P.R.China
| | - Hualin Chen
- College of Chemistry & Environment Protection EngineeringSouthwest Minzu University No.16, South Section, 1st Ring Road, Chengdu, Sichuan 610041 P.R. China
| | - Henghui Huang
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences No. 9, 4th section of South Renmin Road, Chengdu, Sichuan Province 610041 P.R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District, Beijing 100049 P.R.China
| | - Bailing Liu
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences No. 9, 4th section of South Renmin Road, Chengdu, Sichuan Province 610041 P.R. China
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40
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Qian Y, You D, Lin F, Wei J, Wang Y, Bi Y. Enzyme triggered disassembly of amphiphilic linear-dendritic block copolymer micelles based on poly[N-(2-hydroxyethyl-l-glutamine)]. Polym Chem 2019. [DOI: 10.1039/c8py01231h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New amphiphilic linear-dendritic diblock copolymers based on poly[N-(2-hydroxyethyl-l-glutamine)] have been synthesized, and their micellar assemblies can disassemble and release encapsulated molecular cargo upon enzymatic activation.
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Affiliation(s)
- Yangyang Qian
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
| | - Dan You
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
| | - Feng Lin
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
| | - Junwu Wei
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
| | - Yujia Wang
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
| | - Yunmei Bi
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650500
- China
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41
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Polyester-based nanoparticles for nucleic acid delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:983-994. [DOI: 10.1016/j.msec.2018.07.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 07/05/2018] [Accepted: 07/11/2018] [Indexed: 12/14/2022]
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42
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Chen Y, Wang N, Tong G, Wu D, Jin X, Zhu X. Synthesis of Multiarm Star Polymer Based on Hyperbranched Polyester Core and Poly(ε-caprolactone) Arms and Its Application in UV-Curable Coating. ACS OMEGA 2018; 3:13928-13934. [PMID: 31458089 PMCID: PMC6645226 DOI: 10.1021/acsomega.8b02128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/11/2018] [Indexed: 06/10/2023]
Abstract
Hyperbranched polymers have attracted much attention in the field of UV-curable coatings because of its low viscosity, highly branched structure, and rich functional moieties. However, hyperbranched polymers also have some limitations. For example, the spherical structure increases the crosslinking hindrance, resulting in surplus functional moieties. In this study, a multiarm star polymer with hyperbranched polyester core and linear polymer arms was synthesized and used as UV-curable coating. H40, the fourth generation of the hyperbranched polyester, was chosen as the core owing to its low viscosity and high chemical reactivity. Poly(ε-caprolactone) (PCL) arms were introduced to increase the content of flexible segments and reduce the cross-linking hindrance. The terminal hydroxyls were then replaced with methacrylate groups to endow the star polymer with UV curable ability, yielding HPCLn-M. This multiarm star polymer was considered as a promising candidate to make up for the shortcomings of UV-curable coating made from the hyperbranched polymer. The properties, such as hardness, adhesion, acid resistance, and alkali resistance of cured films were enhanced obviously after the grafting of PCL. Moreover, to further explore the effect of the length of PCL grafts on the coating, star polymers with different degree of polymerization (DP) were synthesized. Through the performance tests of cured films, it was found that the multiarm star polymer HPCLn-M could make up for the limitations of the hyperbranched polymer when the DP of PCL was suitable, and the comprehensive performance of cured film reached the best when the DP of PCL was 20. Overall, this multiarm star polymer could combine the advantages of the hyperbranched polymer and linear polymer and has the potential to be the next environmentally friendly UV-curable coating.
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Affiliation(s)
- Yuying Chen
- School of Chemistry
& Chemical Engineering, Shanghai Jiao
Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Nan Wang
- School of Chemistry
& Chemical Engineering, Shanghai Jiao
Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Gangsheng Tong
- School of Chemistry
& Chemical Engineering, Shanghai Jiao
Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Dong Wu
- Shanghai
ANOKY Group Co., Ltd., 881 Songhua Road, Qingpu Export Processing Zone, Shanghai 201703, P. R.
China
| | - Xin Jin
- School of Chemistry
& Chemical Engineering, Shanghai Jiao
Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xinyuan Zhu
- School of Chemistry
& Chemical Engineering, Shanghai Jiao
Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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43
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Van Tran V, Park D, Lee YC. Hydrogel applications for adsorption of contaminants in water and wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:24569-24599. [PMID: 30008169 DOI: 10.1007/s11356-018-2605-y] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 06/18/2018] [Indexed: 05/10/2023]
Abstract
During the last decade, hydrogels have been used as potential adsorbents for removal of contaminants from aqueous solution. To improve the adsorption efficiency, there are numerous different particles that can be chosen to encapsulate into hydrogels and each particle has their respective advantages. Depending on the type of pollutants and approaching method, the particles will be used to prepare hydrogels. The hydrogels commonly applied in water/wastewater treatment was mainly classified into three classes according to their shape included hydrogel beads, hydrogel films, and hydrogel nanocomposites. In review of many recently research papers, we take a closer look at hydrogels and their applications for removal of contaminants, such as heavy metal ion, dyes, and radionuclides from water/wastewater in order to elucidate the reactions between contaminants and particles and potential for recycling and regeneration of the post-treatment hydrogels. Graphical abstract ᅟ.
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Affiliation(s)
- Vinh Van Tran
- Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Seongnam-si, 13120, Gyeonggi-do, Republic of Korea
| | - Duckshin Park
- Korea Railroad Research Institute (KRRI), 176 Cheoldobakmulkwan-ro, Uiwang-si, 16105, Gyeonggi-do, Republic of Korea
| | - Young-Chul Lee
- Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Seongnam-si, 13120, Gyeonggi-do, Republic of Korea.
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44
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Alfei S, Catena S. Synthesis and characterization of versatile amphiphilic dendrimers peripherally decorated with positively charged amino acids. POLYM INT 2018. [DOI: 10.1002/pi.5680] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Silvana Alfei
- Dipartimento di Farmacia, Sezione di Chimica e Tecnologie Farmaceutiche e Alimentari; Università di Genova; Genoa Italy
| | - Silvia Catena
- Dipartimento di Farmacia, Sezione di Chimica e Tecnologie Farmaceutiche e Alimentari; Università di Genova; Genoa Italy
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45
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Firdaus S, Geisler M, Friedel P, Banerjee S, Appelhans D, Voit B, Lederer A. Glyco-pseudodendrimers on a Polyester Basis: Synthesis and Investigation of Protein-Pseudodendrimer Interaction. Macromol Rapid Commun 2018; 39:e1800364. [PMID: 29984438 DOI: 10.1002/marc.201800364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/08/2018] [Indexed: 11/09/2022]
Abstract
Molar mass and end group number of a hyperbranched polyester are significantly increased by its transformation to a pseudodendrimer. Three generations of pseudodendrimers are obtained from hyperbranched aliphatic polyester core by modification with a protected AB*2 monomer. A sequence of protection and deprotection steps leads to OH-terminated pseudodendrimers. NMR studies confirm maximum degree of branching in the first generation, which slightly decreases in the next two generations. Uniform, dense molecular structure formation was confirmed by MD simulation. Further modification to glyco-pseudodendrimers was performed with α-D-mannose leading to high molar masses and dense distribution of sugar units. The interaction of these sugar units with a plant lectin concanavalin A (Con A) was investigated using dynamic light scattering and cryogenic transmission electron microscopy. The protein-interaction studies of the glyco-pseudodendrimers confirm a loose network with Con A. The interaction activity depends on the generation number and modification degree.
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Affiliation(s)
- Shamila Firdaus
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
| | - Martin Geisler
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
| | - Peter Friedel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
| | - Susanta Banerjee
- Materials Science Centre, Indian Institute of Technology, Kharagpur, 721302, India
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, 01062, Dresden, Germany
| | - Albena Lederer
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
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46
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Bolu BS, Sanyal R, Sanyal A. Drug Delivery Systems from Self-Assembly of Dendron-Polymer Conjugates †. Molecules 2018; 23:E1570. [PMID: 29958437 PMCID: PMC6099537 DOI: 10.3390/molecules23071570] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 01/01/2023] Open
Abstract
This review highlights the utilization of dendron-polymer conjugates as building blocks for the fabrication of nanosized drug delivery vehicles. The examples given provide an overview of the evolution of these delivery platforms, from simple micellar containers to smart stimuli- responsive drug delivery systems through their design at the macromolecular level. Variations in chemical composition and connectivity of the dendritic and polymeric segments provide a variety of self-assembled micellar nanostructures that embody desirable attributes of viable drug delivery systems.
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Affiliation(s)
- Burcu Sumer Bolu
- Department of Chemistry, Bogazici University, Bebek, 34342 Istanbul, Turkey.
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Bebek, 34342 Istanbul, Turkey.
- Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey.
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Bebek, 34342 Istanbul, Turkey.
- Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey.
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47
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Lancelot A, González-Pastor R, Clavería-Gimeno R, Romero P, Abian O, Martín-Duque P, Serrano JL, Sierra T. Cationic poly(ester amide) dendrimers: alluring materials for biomedical applications. J Mater Chem B 2018; 6:3956-3968. [PMID: 32254324 DOI: 10.1039/c8tb00639c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Novel cationic poly(ester amide) dendrimers have been synthesized by copper(i) azide-alkyne cycloaddition (CuAAC) of a tripropargylamine core and azide-terminated dendrons, in turn prepared by iterative amide coupling of the new monomer 2,2'-bis(glycyloxymethyl)propionic acid (bis-GMPA). The alternation of ester and amide groups provided a dendritic scaffold that was totally biocompatible and degradable in aqueous media at physiological and acidic pH. The tripodal dendrimers naturally formed rounded aggregates with a drug that exhibited low water solubility, camptothecin, thus improving its cell viability and anti-Hepatitis C virus (anti-HCV) activity. The presence of numerous peripheral cationic groups enabled these dendrimers to form dendriplexes with both pDNA and siRNA and they showed effective in vitro siRNA transfection in tumoral and non-tumoral cell lines.
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Affiliation(s)
- Alexandre Lancelot
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Spain
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48
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Linhardt A, König M, Iturmendi A, Henke H, Brüggemann O, Teasdale I. Degradable, Dendritic Polyols on a Branched Polyphosphazene Backbone. Ind Eng Chem Res 2018; 57:3602-3609. [PMID: 29568158 PMCID: PMC5857928 DOI: 10.1021/acs.iecr.7b05301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/16/2018] [Accepted: 02/23/2018] [Indexed: 11/30/2022]
Abstract
Herein, we present the design, synthesis, and characterization of fully degradable, hybrid, star-branched dendritic polyols. First multiarmed polyphosphazenes were prepared as a star-branched scaffold which upon functionalization produced globular branched hydroxyl-functionalized polymers with over 1700 peripheral functional end groups. These polyols with unique branched architectures could be prepared with controlled molecular weights and relatively narrow dispersities. Furthermore, the polymers are shown to undergo hydrolytic degradation to low molecular weight degradation products, the rate of which could be controlled through postpolymerization functionalization of the phosphazene backbone.
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Affiliation(s)
- Anne Linhardt
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
| | - Michael König
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
| | - Aitziber Iturmendi
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
| | - Helena Henke
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
| | - Oliver Brüggemann
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry, Johannes
Kepler University Linz (JKU), Altenberger Straße 69, A-4040 Linz, Austria
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49
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Synthesis of a poly(ester) dendritic β-cyclodextrin derivative by "click" chemistry: Combining the best of two worlds for complexation enhancement. Carbohydr Polym 2017; 184:20-29. [PMID: 29352912 DOI: 10.1016/j.carbpol.2017.12.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/14/2017] [Accepted: 12/17/2017] [Indexed: 01/05/2023]
Abstract
In spite of the progress in the cyclodextrins chemistry, the synthesis of monodisperse derivatives with a defined degree of substitution is still a challenge. In this work we present a novel dendritic material produced by combining βCD and second generation poly(ester) dendrons. The selective attachment of dendrons in the seven positions of the βCD-primary face was performed through a CuAAC click reaction, which along with a very simple work-up, allowed obtaining the monodisperse material in very high yields. The product showed a great aqueous solubility and an in vitro non-toxic profile. The enhanced complexation potential of the product was evidenced through the formation of an inclusion complex with albendazole, which presented a Kc = 29636.17 M-1. In this system, albendazole was 45 times more water-soluble in comparison to the complex albendazole-native βCD. All these features make the dendritic material very attractive for further applications in the formulation and drug delivery fields.
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50
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Andrén OCJ, Fernandes AP, Malkoch M. Heterogeneous Rupturing Dendrimers. J Am Chem Soc 2017; 139:17660-17666. [DOI: 10.1021/jacs.7b10377] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Oliver C. J. Andrén
- School
of Chemical Science and Engineering, Fiber and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Aristi P. Fernandes
- Division
of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles v. 2, SE-171
77 Stockholm, Sweden
| | - Michael Malkoch
- School
of Chemical Science and Engineering, Fiber and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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