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Zaręba M, Chmiel-Szukiewicz E, Uram Ł, Noga J, Rzepna M, Wołowiec S. A Novel PAMAM G3 Dendrimer-Based Foam with Polyether Polyol and Castor Oil Components as Drug Delivery System into Cancer and Normal Cells. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3905. [PMID: 39203083 PMCID: PMC11355831 DOI: 10.3390/ma17163905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/24/2024] [Accepted: 08/05/2024] [Indexed: 09/03/2024]
Abstract
One of the intensively developed tools for cancer therapy is drug-releasing matrices. Polyamidoamine dendrimers (PAMAM) are commonly used as nanoparticles to increase the solubility, stability and retention of drugs in the human body. Most often, drugs are encapsulated in PAMAM cavities or covalently attached to their surface. However, there are no data on the use of PAMAM dendrimers as a component of porous matrices based on polyurethane foams for the controlled release of drugs and biologically active substances. Therefore, in this work, porous materials based on polyurethane foam with incorporated third-generation poly(amidoamine) dendrimers (PAMAM G3) were synthesized and characterized. Density, water uptake and morphology of foams were examined with SEM and XPS. The PAMAM was liquefied with polyether polyol (G441) and reacted with polymeric 4,4'-diphenylmethane diisocyanate (pMDI) in the presence of silicone, water and a catalyst to obtain foam (PF1). In selected compositions, the castor oil was added (PF2). Analogs without PAMAM G3 were also synthesized (F1 and F2, respectively). An SEM analysis of foams showed that they are composed of thin ribs/walls forming an interconnected network containing hollow bubbles/pores and showing some irregularities in the structure. Foam from a G3:G441:CO (PF2) composition is characterized by a more regular structure than the foam from the composition without castor oil. The encapsulation efficiency of drugs determined by the XPS method shows that it varies depending on the matrix and the drug and ranges from several to a dozen mass percent. In vitro biological studies with direct contact and extract assays indicated that the F2 matrix was highly biocompatible. Significant toxicity of dendrimeric matrices PF1 and PF2 containing 50% of PAMAM G3 was higher against human squamous carcinoma cells than human immortalized keratinocytes. The ability of the matrices to immobilize drugs was demonstrated in the example of perspective (Nimesulide, 8-Methoxypsolarene) or approved anticancer drugs (Doxorubicin-DOX, 5-Aminolevulinic acid). Release into the culture medium and penetration of DOX into the tested SCC-15 and HaCaT cells were also proved. The results show that further modification of the obtained matrices may lead to their use as drug delivery systems, e.g., for anticancer therapy.
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Affiliation(s)
- Magdalena Zaręba
- The Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (M.Z.); (E.C.-S.); (Ł.U.); (J.N.)
| | - Elżbieta Chmiel-Szukiewicz
- The Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (M.Z.); (E.C.-S.); (Ł.U.); (J.N.)
| | - Łukasz Uram
- The Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (M.Z.); (E.C.-S.); (Ł.U.); (J.N.)
| | - Justyna Noga
- The Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (M.Z.); (E.C.-S.); (Ł.U.); (J.N.)
| | - Magdalena Rzepna
- Centre for Radiation Research and Technology, Institute of Nuclear Chemistry and Technology, 03-195 Warsaw, Poland;
| | - Stanisław Wołowiec
- Medical College, University of Rzeszow, 1a Warzywna Street, 35-310 Rzeszow, Poland
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2
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Díaz CF, Cifuentes DL, Oyarzún M, Jiménez VA, Guzmán L. Cell internalization kinetics and surface charge accessibility of surface-modified PAMAM dendrimers. Org Biomol Chem 2023; 21:7782-7790. [PMID: 37705355 DOI: 10.1039/d3ob01265d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Surface-modified PAMAM dendrimers have important applications in drug delivery, yet a gap remains about the role that surface functionalization plays on their cell internalization capacity. We examined the cell internalization kinetics of PAMAM dendrimers that were surface-modified with acetyl, folate and poly(ethylene glycol), as model functional groups differing in size, charge, and chemical functionality. Dendrimers with 25% functionalization were internalized by HEK cells, but with slower rates and lower maximum uptakes than the native dendrimer between 1-6 h of incubation. Dendrimers with 50% functionalization exhibited negligible internalization capacities at all incubation times. Molecular dynamics simulations revealed that the solvent accessibility of the cationic surface charges is a key factor affecting cell internalization, unlike the total charge, functionality or size of surface-modified PAMAM dendrimers. These findings provide valuable insights to assist the design of PAMAM-based systems for drug delivery applications.
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Affiliation(s)
- Carola F Díaz
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile.
| | - Diego L Cifuentes
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Barrio Universitario S/N, Concepción, Chile
| | - Maximiliano Oyarzún
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Barrio Universitario S/N, Concepción, Chile
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile.
| | - Leonardo Guzmán
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Barrio Universitario S/N, Concepción, Chile
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González-Méndez I, Sorroza-Martínez K, González-Sánchez I, Gracia-Mora J, Bernad-Bernad MJ, Cerbón M, Rivera E, Yatsimirsky AK. Exploring the Influence of Spacers in EDTA-β-Cyclodextrin Dendrimers: Physicochemical Properties and In Vitro Biological Behavior. Int J Mol Sci 2023; 24:14422. [PMID: 37833869 PMCID: PMC10572662 DOI: 10.3390/ijms241914422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
The synthesis of a new family of ethylenediaminetetraacetic acid (EDTA) core dimers and G0 dendrimers end-capped with two and four β-cyclodextrin (βCD) moieties was performed by click-chemistry conjugation, varying the spacers attached to the core. The structure analyses were achieved in DMSO-d6 and the self-inclusion process was studied in D2O by 1H-NMR spectroscopy for all platforms. It was demonstrated that the interaction with adamantane carboxylic acid (AdCOOH) results in a guest-induced shift of the self-inclusion effect, demonstrating the full host ability of the βCD units in these new platforms without any influence of the spacer. The results of the quantitative size and water solubility measurements demonstrated the equivalence between the novel EDTA-βCD platforms and the classical PAMAM-βCD dendrimer. Finally, we determined the toxicity for all EDTA-βCD platforms in four different cell lines: two human breast cancer cells (MCF-7 and MDA-MB-231), human cervical adenocarcinoma cancer cells (HeLa), and human lung adenocarcinoma cells (SK-LU-1). The new EDTA-βCD carriers did not present any cytotoxicity in the tested cell lines, which showed that these new classes of platforms are promising candidates for drug delivery.
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Affiliation(s)
- Israel González-Méndez
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico; (I.G.-M.); (J.G.-M.)
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca C.P. 62209, Mexico
| | - Kendra Sorroza-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City C.P. 04510, Mexico;
| | - Ignacio González-Sánchez
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico; (I.G.-S.); (M.C.)
| | - Jesús Gracia-Mora
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico; (I.G.-M.); (J.G.-M.)
| | - María Josefa Bernad-Bernad
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico;
| | - Marco Cerbón
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico; (I.G.-S.); (M.C.)
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City C.P. 04510, Mexico;
| | - Anatoly K. Yatsimirsky
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City C.P. 04510, Mexico; (I.G.-M.); (J.G.-M.)
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Sakai S, Hirano Y, Kobayashi Y, Arai N. Effect of temperature on the structure and drug-release behaviour of inclusion complex of β-cyclodextrin with cyclophosphamide: a molecular dynamics study. SOFT MATTER 2023; 19:2902-2907. [PMID: 36987748 DOI: 10.1039/d2sm01542k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Cyclodextrins (CDs) are suitable drug carriers because of their doughnut-shaped cavities with hydrophilic outer and hydrophobic inner surfaces. Temperature-responsive CD-based drug carriers are expected to be one of the most promising candidates for drug delivery systems. In this study, we performed molecular dynamics simulations of the inclusion complex of β-CD with cyclophosphamide (CP) at temperatures from 300 K to 400 K to investigate the temperature dependency of the release behaviour of CP and structural changes of β-CD in an aqueous solution. We analysed the distance between the centres of mass of β-CD and CP and the radius of gyration of β-CD. The CP molecule was released from the β-CD cavity at 400 K, whereas two different inclusion complexes, partially and completely, were observed at T < 400 K. β-CD encapsulating a CP molecule had a more spherical shape and rigidity than β-CD without a CP, and the rigidity of their inclusion complex decreased with increasing temperature. Our findings provide fundamental insights into the behaviours of the β-CD/CP complex and drug release at the molecular level and can facilitate the development of new temperature-responsive drug delivery systems with CD nanocarriers triggered by localised temperature increases using focused ultrasound.
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Affiliation(s)
- Seiga Sakai
- Department of Mechanical Engineering, Keio University, Yokohama, Kanagawa 223-8522, Japan.
| | - Yoshinori Hirano
- Department of Mechanical Engineering, Keio University, Yokohama, Kanagawa 223-8522, Japan.
| | - Yusei Kobayashi
- Department of Mechanical Engineering, Keio University, Yokohama, Kanagawa 223-8522, Japan.
| | - Noriyoshi Arai
- Department of Mechanical Engineering, Keio University, Yokohama, Kanagawa 223-8522, Japan.
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2019-2020. MASS SPECTROMETRY REVIEWS 2022:e21806. [PMID: 36468275 DOI: 10.1002/mas.21806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2020. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. The review is basically divided into three sections: (1) general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, quantification and the use of arrays. (2) Applications to various structural types such as oligo- and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals, and (3) other areas such as medicine, industrial processes and glycan synthesis where MALDI is extensively used. Much of the material relating to applications is presented in tabular form. The reported work shows increasing use of incorporation of new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented nearly 40 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show little sign of diminishing.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
- Department of Chemistry, University of Oxford, Oxford, Oxfordshire, United Kingdom
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González-Méndez I, Loera-Loera E, Sorroza-Martínez K, Vonlanthen M, Cuétara-Guadarrama F, Bernad-Bernad MJ, Rivera E, Gracia-Mora J. Synthesis of β-Cyclodextrin-Decorated Dendritic Compounds Based on EDTA Core: A New Class of PAMAM Dendrimer Analogs. Pharmaceutics 2022; 14:2363. [PMID: 36365180 PMCID: PMC9697223 DOI: 10.3390/pharmaceutics14112363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 10/15/2023] Open
Abstract
In this work, two dendritic molecules containing an ethylenediaminetetraacetic acid (EDTA) core decorated with two and four β-cyclodextrin (βCD) units were synthesized and fully characterized. Copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) click chemistry under microwave irradiation was used to obtain the target compounds with yields up to 99%. The classical ethylenediamine (EDA) core present in PAMAM dendrimers was replaced by an EDTA core, obtaining platforms that increase the water solubility at least 80 times compared with native βCD. The synthetic methodology presented here represents a convenient alternative for the rapid and efficient construction of PAMAM analogs. These molecules are envisaged for future applications as drug carriers.
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Affiliation(s)
- Israel González-Méndez
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - Esteban Loera-Loera
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City CP 04510, Mexico
- Escuela de Ciencias de la Salud, Campus Coyoacán, Universidad del Valle de México, Calzada de Tlalpan 3000, Coyoacán, Mexico City CP 04910, Mexico
| | - Kendra Sorroza-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - Mireille Vonlanthen
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - Fabián Cuétara-Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - María Josefa Bernad-Bernad
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City CP 04510, Mexico
| | - Jesús Gracia-Mora
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City CP 04510, Mexico
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Kanvinde S, Kulkarni T, Deodhar S, Bhattacharya D, Dasgupta A. Non-Viral Vectors for Delivery of Nucleic Acid Therapies for Cancer. BIOTECH 2022; 11:biotech11010006. [PMID: 35822814 PMCID: PMC9245904 DOI: 10.3390/biotech11010006] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/26/2022] [Accepted: 03/02/2022] [Indexed: 01/12/2023] Open
Abstract
The research and development of non-viral gene therapy has been extensive over the past decade and has received a big push thanks to the recent successful approval of non-viral nucleic acid therapy products. Despite these developments, nucleic acid therapy applications in cancer have been limited. One of the main causes of this has been the imbalance in development of delivery vectors as compared with sophisticated nucleic acid payloads, such as siRNA, mRNA, etc. This paper reviews non-viral vectors that can be used to deliver nucleic acids for cancer treatment. It discusses various types of vectors and highlights their current applications. Additionally, it discusses a perspective on the current regulatory landscape to facilitate the commercial translation of gene therapy.
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Affiliation(s)
- Shrey Kanvinde
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (T.K.); (D.B.)
- Correspondence:
| | - Tanmay Kulkarni
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (T.K.); (D.B.)
| | - Suyash Deodhar
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Deep Bhattacharya
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (T.K.); (D.B.)
| | - Aneesha Dasgupta
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA;
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Liu Z, Xu Z, Ma L. Design, synthesis, and characterization of a series of novel β-cyclodextrin functional monomers. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198211073281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In order to increase its solubility in water and improve β-cyclodextrin combination with guest molecules, chemical modification of β-cyclodextrin is a feasible and effective method. A variety of β-cyclodextrin derivatives are designed and introduced for pharmaceutical complexation and analytical chemistry application. In this study, a series of β-cyclodextrin derivatives containing unsaturated bonds is designed and synthesized. The products are characterized by MS, FTIR, 1H NMR, and 13C NMR. Some of the functional monomers may be used in the preparation of molecularly imprinted polymers, and preliminary studies have shown excellent molecular recognition ability. The prepared β-cyclodextrin functional monomers have potential application value in molecular recognition materials based on polymers.
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Affiliation(s)
- Zhimin Liu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, P.R. China
- Faculty of Science, Kunming University of Science and Technology, Kunming, P.R. China
| | - Zhigang Xu
- Faculty of Science, Kunming University of Science and Technology, Kunming, P.R. China
| | - Liping Ma
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, P.R. China
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Vonlanthen M, Cuétara-Guadarrama F, Porcu P, Sorroza-Martínez K, González-Méndez I, Rivera E. Dendronized Porphyrins: Molecular Design and Synthesis. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220126121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
In this review, we report different methods and strategies to synthesize flexible and rigid dendronized porphyrins. We will focus on porphyrin dendrimers that have been reported in the last 10 years. Particularly, in our research group, we have designed and synthesized different series of dendronized porphyrins (free base and metallated) with pyrene units at the periphery and Fréchet-type dendritic arms. The Lindsey methodology has allowed the synthesis of meso-substituted porphyrins with various substitution patterns, such as symmetric, dissymmetric, or unsymmetric. Porphyrin dendrimers have been prepared by different synthetic methodologies; one of the most reported being the convergent method, where the dendrons are first prepared and further linked to a meso-substituted functionalized porphyrin unit, which will constitute the core of the dendrimer. Another interesting synthetic approach is the use of a reactive dendron bearing a terminal aldehyde functional group to form the final porphyrin core. In this way, a two-armed dendronized dissymmetric porphyrin core can be prepared from a dendritic precursor and a dipyrromethene derivative. This strategy is very convenient to prepare low-generation dendritic porphyrins. The divergent approach is another well-known methodology for porphyrin dendrimer synthesis, mostly used for the obtainment of high-generation dendrimers. Click chemistry reaction has been advantageous for the development of more complex porphyrin dendritic structures. This reaction presents important advantages, such as high yields and mild reaction conditions which permit the assembly of different multiporphyrin dendritic structures. In the constructs presented in this review, the emission of the porphyrin moiety has been observed, leading to potential applications in artificial photosynthesis, sensing, nanomedicine, and biological sciences.
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Affiliation(s)
- Mireille Vonlanthen
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Fabián Cuétara-Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Pasquale Porcu
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Kendra Sorroza-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Israel González-Méndez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
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Yu S, Sha X, Zhou X, Guo D, Han B, Huang S, Zhu Y. Cyclodextrin-dendrimers nanocomposites functionalized high performance liquid chromatography stationary phase for efficient separation of aromatic compounds. J Chromatogr A 2021; 1662:462730. [PMID: 34896734 DOI: 10.1016/j.chroma.2021.462730] [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: 08/25/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 01/03/2023]
Abstract
In this work, novel cyclodextrin-dendrimers nanocomposites functionalized high performance liquid chromatography stationary phases were developed for efficient separation of aromatic compounds. β-cyclodextrin was grafted onto the surface of silica gel matrix with poly (amidoamine) dendrimers as spacers. Scanning electron microscope, fourier transform infrared spectroscopy, element analysis and Brunner-Emmet-Teller measurement proved the successful grafting of cyclodextrin-dendrimers nanocomposites. The obtained stationary phases showed satisfactory separation effects for alkylbenzenes and benzenesulfonic acid substituents in reverse phase liquid chromatography mode. Weak hydrophilic and ion exchange interactions were also confirmed at the same time. Meanwhile, the effects of dendrimers and cyclodextrin on the chromatography performance were discussed. Separation mechanism of the stationary phases were verified by two-dimensional nuclear magnetic resonance technology, and the result implied that the proposed cyclodextrin-dendrimers nanocomposites functionalized stationary phases have significant prospects for separation and determination of more aromatic compounds in future.
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Affiliation(s)
- Shuxin Yu
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Xuming Sha
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Xiaoqian Zhou
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Dandan Guo
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Bowen Han
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Shaohua Huang
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, China.
| | - Yan Zhu
- Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028, China
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Karimi S, Namazi H. Synthesis of folic acid-conjugated glycodendrimer with magnetic β-cyclodextrin core as a pH-responsive system for tumor-targeted co-delivery of doxorubicin and curcumin. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Sorroza-Martínez K, González-Méndez I, Vonlanthen M, Cuétara-Guadarrama F, Illescas J, Zhu XX, Rivera E. Guest-Mediated Reversal of the Tumbling Process in Phosphorus-Dendritic Compounds Containing β-Cyclodextrin Units: An NMR Study. Pharmaceuticals (Basel) 2021; 14:556. [PMID: 34207945 PMCID: PMC8230630 DOI: 10.3390/ph14060556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/01/2021] [Accepted: 06/01/2021] [Indexed: 12/02/2022] Open
Abstract
The conformational study of dendritic platforms containing multiple β-cyclodextrin (βCD) units in the periphery is relevant to determine the availability of βCD cavities for the formation of inclusion complexes in aqueous biological systems. In this work, we performed a detailed conformational analysis in D2O, via 1D and 2D NMR spectroscopy of a novel class of phosphorus dendritic compounds of the type P3N3-[O-C6H4-O-(CH2)n-βCD]6 (where n = 3 or 4). We unambiguously demonstrated that a functionalized glucopyranose unit of at least one βCD unit undergoes a 360° tumbling process, resulting in a deep inclusion of the spacer that binds the cyclodextrin to the phosphorus core inside the cavity, consequently limiting the availability of the inner cavities. In addition, we confirmed through NMR titrations that this tumbling phenomenon can be reversed for all βCD host units using a high-affinity guest, namely 1-adamantanecarboxylic acid (AdCOOH). Our findings have demonstrated that it is possible to create a wide variety of multi-functional dendritic platforms.
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Affiliation(s)
- Kendra Sorroza-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México City CP 04510, Mexico; (K.S.-M.); (M.V.); (F.C.-G.)
| | - Israel González-Méndez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México City CP 04510, Mexico; (K.S.-M.); (M.V.); (F.C.-G.)
| | - Mireille Vonlanthen
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México City CP 04510, Mexico; (K.S.-M.); (M.V.); (F.C.-G.)
| | - Fabián Cuétara-Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México City CP 04510, Mexico; (K.S.-M.); (M.V.); (F.C.-G.)
| | - Javier Illescas
- Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Avenida Tecnológico S/N Col. Agrícola Bellavista, Metepec CP 52140, Mexico;
| | - Xiao Xia Zhu
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada;
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México City CP 04510, Mexico; (K.S.-M.); (M.V.); (F.C.-G.)
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