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Khusnutdinova NR, Markelov DA. Hydrodynamic radius of dendrimers in solvents. Phys Chem Chem Phys 2023; 25:28220-28229. [PMID: 37823286 DOI: 10.1039/d3cp03382a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The diffusion properties and hydrodynamic radius, Rh, of macromolecules are important for theoretical studies and practical application. Moreover, comparison of Rh values obtained from simulation and experimental data is used to check the correctness of simulation results. Here, we study the translation mobility of poly(butylcarbosilane) dendrimers in chloroform solution using molecular dynamics simulations and consider simulation details that may influence the accuracy of the result. Different methods to estimate Rh for a dendrimer are discussed with comparison to our experimental data. It was shown that the traditional MD simulation method for extraction of the diffusion coefficient (and calculation of Rh) of dendrimers as a rule faces difficulties and requires simulation resources several times greater than, for example, the same for a linear analogue. In the majority of MD simulation papers, the diffusion coefficient and/or Rh are calculated incorrectly. Also, we establish that correction of Rh according to the simulation box or estimation of Rh by using the gyration radius does not give values close to experimental data. To avoid the mentioned problems, we found an alternative way: to consider rotational diffusion, which gives an Rh similar to that from experiment and is practically independent of the size of the simulation box and other simulation parameters.
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Affiliation(s)
- Naira R Khusnutdinova
- Saint Petersburg State University, 7/9 Universitetskaya nab., St Petersburg 199034, Russia.
- Kazan State Power Engineering University, 51 Krasnoselskaya st., Kazan 420066, Russia.
| | - Denis A Markelov
- Saint Petersburg State University, 7/9 Universitetskaya nab., St Petersburg 199034, Russia.
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2
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THIRUMALAI A, ELBOUGHDIRI N, HARINI K, GIRIGOSWAMI K, GIRIGOSWAMI A. Phosphorus-carrying cascade molecules: inner architecture to biomedical applications. Turk J Chem 2023; 47:667-688. [PMID: 38174062 PMCID: PMC10760543 DOI: 10.55730/1300-0527.3570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 08/25/2023] [Accepted: 06/23/2023] [Indexed: 01/05/2024] Open
Abstract
Cascade molecules are nearly uniform-sized macromolecules of small molecules or linear polymer cores built around symmetric branching units. A wide range of biological properties can be achieved with phosphorus-containing dendrimers, depending on their terminal functions, ranging from biomaterials to imaging, drug delivery, and acting as a drug by themselves. This feature article presents significant examples of phosphorus-containing dendrimers used to develop biochips, support cell cultures, carry or deliver biomacromolecules and drugs, bioimaging, and combinational benefits. Because of the thermal stability, ferrocene function, and physical and chemical properties of phosphorus, dendrimers show greater rigidity, mobility, and strength. These dendrimers will be discussed as having a favorable effect on cell growths, especially on neuronal cells, as well as human immune cells like natural killer cells and monocytes, which have a crucial part in preventing cancerous and viral infections. Several phosphorus dendrimers are effective as drugs by themselves (drug per se) and show their activity against neurodegenerative diseases, cancer, inflammation, ocular hypertension, and transmissible spongiform encephalopathies (TSEs) in both in vivo and in vitro. The present review discusses the synthetic route, fabrications, and biomedical applications of phosphorus-containing dendrimers. The toxicity of these dendrimers was also reported.
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Affiliation(s)
- Anbazhagan THIRUMALAI
- Department of Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, TN,
India
| | - Noureddine ELBOUGHDIRI
- Department of Chemical Engineering, College of Engineering, University of Hail, Hail,
Saudi Arabia
- Department of Chemical Engineering Process, National School of Engineers Gabes, University of Gabes, Gabes,
Tunisia
| | - Karthick HARINI
- Department of Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, TN,
India
| | - Koyeli GIRIGOSWAMI
- Department of Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, TN,
India
| | - Agnishwar GIRIGOSWAMI
- Department of Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, TN,
India
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Specific Bifunctionalization on the Surface of Phosphorus Dendrimers Syntheses and Properties. ORGANICS 2022. [DOI: 10.3390/org3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dendrimers are highly branched macromolecules possessing, in most cases, identical terminal functions. However, it is sometimes desirable to have two types of surface functions in order to fulfil specific properties. The stochastic functionalization is frequently used for such purposes, but the presence of an uncontrolled number of each type of terminal function, albeit acceptable for research purposes, has no practical use. Thus, it is highly desirable to find strategies suitable for the precise grafting of two different functional groups on the surface of dendrimers. The easiest way, and the most widely used, consists in using a bifunctional monomer to be grafted to all of the surface functions of the dendrimers. Two other strategies are known but are rarely used: the modification of an existing function, to generate two functions, and the sequential grafting of one function then of a second function. The three methods are illustrated in this review with polyphosphorhydrazone (PPH) dendrimers, together with their properties as catalysts, for materials, and as biological tools.
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PEG-cored phosphorus dendrimers: synthesis and functionalization. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Dendrimers against fungi - A state of the art review. J Control Release 2020; 330:599-617. [PMID: 33347941 DOI: 10.1016/j.jconrel.2020.12.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022]
Abstract
Fungal based diseases currently affect nearly a quarter of the population around the world, which diseases are usually limited to superficial infections. Perversely, along with the development of modern medicine, cases of life-threatening systemic fungi are more and more often encountered. Compared to antibacterial drugs, significantly fewer fungicides are tested and introduced to clinical practice. At the same time, the drug resistance of pathological fungi is constantly growing. In addition to obtaining new derivatives of already-established classes of drugs, such as azoles, there is a growing interest in new compounds with potentially new mechanisms and application possibilities. Polymers are included in the flow of these studies, and among them - dendrimers. Dendrimers are a special type of polymers with a strictly defined structure and a plethora of functionalization possibilities. This allows them to not only be used as effective antifungal drug carriers but also enables them to exhibit antifungal activity per se. In this review, we have introduced to the epidemiology of fungal infections and summarized the aspects related to their control and therapy. Various polymers and dendrimers with antifungal activity were presented. In the subsequent sections antifungal acting dendrimers were discussed within three subchapters, based on their chemical structure: (i) amino acid-based dendrimers, (ii) amino based dendrimers, and (iii) other, which do not share similarities in structure. We have gathered and summarized the reports regarding the direct action of dendrimers on infectious fungi, as well as their effect when used as solubilizers, carriers or adjuvants with currently used antifungals. Use of dendrimers for the sensing of fungi or their metabolites are also considered. Special attention was also paid to the applications of dendrimers together with photosensitizers in antimicrobial photodynamic therapy.
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Abstract
From biomaterials to imaging, and from drug delivery to drugs by themselves, phosphorus-containing dendrimers offer a large palette of biological properties, depending essentially on their types of terminal functions. The most salient examples of phosphorus dendrimers used for the elaboration of bio-chips and of supports for cell cultures, for imaging biological events, and for carrying and delivering drugs or biomacromolecules are presented in this feature article. Several phosphorus dendrimers can be considered also as drugs per se (by themselves) in particular to fight against cancers, neurodegenerative diseases, and inflammation, both in vitro and in vivo. Toxicity assays are also reported.
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Affiliation(s)
- Anne-Marie Caminade
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, F-31077 Toulouse, France.
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Hayder M, Garzoni M, Bochicchio D, Caminade AM, Couderc F, Ong-Meang V, Davignon JL, Turrin CO, Pavan GM, Poupot R. Three-Dimensional Directionality Is a Pivotal Structural Feature for the Bioactivity of Azabisphosphonate-Capped Poly(PhosphorHydrazone) Nanodrug Dendrimers. Biomacromolecules 2018; 19:712-720. [PMID: 29443507 DOI: 10.1021/acs.biomac.7b01398] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Dendrimers are nanosized, nonlinear, hyperbranched polymers whose overall 3D shape is key for their biological activity. Poly(PhosphorHydrazone) (PPH) dendrimers capped with aza-bisphosphonate (ABP) end groups are known to have anti-inflammatory properties enabling the control of inflammatory diseases in different mouse models. Here we screen the anti-inflammatory activity of a series of PPH dendrimers bearing between 2 and 16 ABP end groups in a mouse model of arthritis and confront the biological results with atomistic simulations of the dendrimers. We show that only the PPH dendrimers capped with 10 and 12 ABP end groups can control the flare of the inflammatory disease. All-atom accelerated molecular dynamics simulations show that dendrimers with a low number of ABP end groups are directional but highly flexible/dynamic and have thereby limited efficiency in establishing multivalent interactions. The largest dendrimer appears as nondirectional, having 16 ABP end groups forming patches all over the dendrimer surface. Conversely, intermediate dendrimers having 10 or 12 ABP end groups reach the best compromise between the number of surface groups and their stable directional gathering, a real maximization of multivalency.
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Affiliation(s)
- Myriam Hayder
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS , Toulouse , France
| | - Matteo Garzoni
- Department of Innovative Technologies , University for Applied Sciences and Arts of Southern Switzerland (SUPSI) , Galleria 2, Via Cantonale 2c , CH-6928 Manno , Switzerland
| | - Davide Bochicchio
- Department of Innovative Technologies , University for Applied Sciences and Arts of Southern Switzerland (SUPSI) , Galleria 2, Via Cantonale 2c , CH-6928 Manno , Switzerland
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS , 205 Route de Narbonne, BP 44099 , 31077 Toulouse Cedex 4 , France.,LCC-CNRS, Université de Toulouse, CNRS , Toulouse , France
| | - François Couderc
- Laboratoire des Interactions Moléculaires et Réactivité, Chimique et Photochimique (IMRCP), Université de Toulouse, CNRS, UPS , Toulouse , France
| | - Varravaddheay Ong-Meang
- Laboratoire des Interactions Moléculaires et Réactivité, Chimique et Photochimique (IMRCP), Université de Toulouse, CNRS, UPS , Toulouse , France
| | - Jean-Luc Davignon
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS , Toulouse , France
| | - Cédric-Olivier Turrin
- Laboratoire de Chimie de Coordination du CNRS , 205 Route de Narbonne, BP 44099 , 31077 Toulouse Cedex 4 , France.,LCC-CNRS, Université de Toulouse, CNRS , Toulouse , France
| | - Giovanni M Pavan
- Department of Innovative Technologies , University for Applied Sciences and Arts of Southern Switzerland (SUPSI) , Galleria 2, Via Cantonale 2c , CH-6928 Manno , Switzerland
| | - Rémy Poupot
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS , Toulouse , France
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Folgado E, Guerre M, Bijani C, Ladmiral V, Caminade AM, Ameduri B, Ouali A. Well-defined poly(vinylidene fluoride) (PVDF) based-dendrimers synthesized by click chemistry: enhanced crystallinity of PVDF and increased hydrophobicity of PVDF films. Polym Chem 2016. [DOI: 10.1039/c6py01167e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study reports the preparation of a novel fluorinated dendrimer bearing PVDF branches by click chemistry and its characterization by several analytical methods.
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Affiliation(s)
- Enrique Folgado
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Marc Guerre
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Christian Bijani
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Vincent Ladmiral
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Anne-Marie Caminade
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Bruno Ameduri
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Armelle Ouali
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
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Kanchi S, Suresh G, Priyakumar UD, Ayappa KG, Maiti PK. Molecular Dynamics Study of the Structure, Flexibility, and Hydrophilicity of PETIM Dendrimers: A Comparison with PAMAM Dendrimers. J Phys Chem B 2015; 119:12990-3001. [DOI: 10.1021/acs.jpcb.5b07124] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Subbarao Kanchi
- Center
for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, 560012, India
- Department
of Chemical Engineering, Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Gorle Suresh
- Center
for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad, 500032, India
| | - U. Deva Priyakumar
- Center
for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad, 500032, India
| | - K. G. Ayappa
- Department
of Chemical Engineering, Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Prabal K Maiti
- Center
for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, 560012, India
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