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Lasak M, Nirwan VP, Kuc-Ciepluch D, Lysek-Gladysinska M, Javier de la Mata F, Gomez R, Fahmi A, Ciepluch K. Dendronized Ag/Au Nanomats: Antimicrobial Scaffold for Wound Healing Bandages. Macromol Biosci 2024; 24:e2300513. [PMID: 38444226 DOI: 10.1002/mabi.202300513] [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: 11/11/2023] [Revised: 02/06/2024] [Indexed: 03/07/2024]
Abstract
Electrospun polymer nanofibers, due to high surface area-to-volume ratio, high porosity, good mechanical strength, and ease of functionalization, appear as promising multifunctional materials for biomedical applications. Thanks to their unidirectional structure, imitating the extracellular matrix (ECM), they can be used as scaffolds for cell adhesion and proliferation. In addition, the incorporation of active groups inside nanofiber can give properties for bactericides. The proposed nanomats incorporate nanoparticles templated within the electrospun nanofibers that prevent infections and stimulate tissue regeneration. The generated hybrid electrospun nanofibers are composed of a copolymer of L-lactide-block-ε-caprolactone (PL-b-CL), 70:30, blended with homopolymer polyvinylpyrrolidone (PVP) and gold (Au) nanoparticles. A low cytotoxicity and slightly increased immunoreactivity, stimulated by the nanomat, are observed. Moreover, the decoration of the hybrid nanomat with dendronized silver nanoparticles (Dend-Ag) improves their antibacterial activity against antibiotic-resistant Pseudomonas aeruginosa. The use of Dend-Ag for decorating offers several functional effects; namely, it enhances the antibacterial properties of the produced nanomats and induces a significant increase within macrophages' cytotoxicity. The unidirectional nanostructures of the generated hybrid nanomats demonstrate unique collective physio-chemical and biological properties suitable for a wide range of biomedical applications. Here, the antibacterial properties facilitate an optimal environment, contributing to accelerated wound healing.
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Affiliation(s)
- Magdalena Lasak
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, Kielce, 25-640, Poland
| | - Viraj P Nirwan
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie-Straβe 1, 47533, Kleve, Germany
| | - Dorota Kuc-Ciepluch
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, Kielce, 25-640, Poland
| | - Malgorzata Lysek-Gladysinska
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, Kielce, 25-640, Poland
| | - F Javier de la Mata
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), University of Alcalá, Alcalá de Henares, 28871, Spain
- Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Av. Monforte de Lemos, 3-5, Madrid, 28029, Spain
- Ramón y Cajal Institute of Health Research, IRYCIS, Ctra. de Colmenar Viejo, Km. 9, Madrid, 28034, Spain
| | - Rafael Gomez
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), University of Alcalá, Alcalá de Henares, 28871, Spain
- Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Av. Monforte de Lemos, 3-5, Madrid, 28029, Spain
- Ramón y Cajal Institute of Health Research, IRYCIS, Ctra. de Colmenar Viejo, Km. 9, Madrid, 28034, Spain
| | - Amir Fahmi
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie-Straβe 1, 47533, Kleve, Germany
| | - Karol Ciepluch
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, Kielce, 25-640, Poland
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Skrzyniarz K, Sanchez-Nieves J, de la Mata FJ, Łysek-Gładysińska M, Lach K, Ciepluch K. Mechanistic insight of lysozyme transport through the outer bacteria membrane with dendronized silver nanoparticles for peptidoglycan degradation. Int J Biol Macromol 2023; 237:124239. [PMID: 36996956 DOI: 10.1016/j.ijbiomac.2023.124239] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 03/09/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023]
Abstract
Drug resistance has become a global problem, prompting the entire scientific world to seek alternative methods of dealing with resistant pathogens. Among the many alternatives to antibiotics, two appear to be the most promising: membrane permeabilizers and enzymes that destroy bacterial cell walls. Therefore, in this study, we provide insight into the mechanism of lysozyme transport strategies using two types of carbosilane dendronized silver nanoparticles (DendAgNPs), non-polyethylene glycol (PEG)-modified (DendAgNPs) and PEGylated (PEG-DendAgNPs), for outer membrane permeabilization and peptidoglycan degradation. Remarkably, studies have shown that DendAgNPs can build up on the surface of a bacterial cell, destroying the outer membrane, and thereby allowing lysozymes to penetrate inside the bacteria and destroy the cell wall. PEG-DendAgNPs, on the other hand, have a completely different mechanism of action. PEG chains containing a complex lysozyme resulted in bacterial aggregation and an increase in the local enzyme concentration near the bacterial membrane, thereby inhibiting bacterial growth. This is due to the accumulation of the enzyme in one place on the surface of the bacteria and penetration into it through slight damage of the membrane due to interactions of NPs with the membrane. The results of this study will help propel more effective antimicrobial protein nanocarriers.
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Affiliation(s)
- Kinga Skrzyniarz
- Division of Medical Biology, Jan Kochanowski University, 25-406 Kielce, Poland
| | - Javier Sanchez-Nieves
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; Ramón y Cajal Institute of Health Research, IRYCIS, 28034 Madrid, Spain
| | - F Javier de la Mata
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; Ramón y Cajal Institute of Health Research, IRYCIS, 28034 Madrid, Spain
| | | | - Karolina Lach
- Division of Medical Biology, Jan Kochanowski University, 25-406 Kielce, Poland
| | - Karol Ciepluch
- Division of Medical Biology, Jan Kochanowski University, 25-406 Kielce, Poland.
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More PR, Pandit S, Filippis AD, Franci G, Mijakovic I, Galdiero M. Silver Nanoparticles: Bactericidal and Mechanistic Approach against Drug Resistant Pathogens. Microorganisms 2023; 11:microorganisms11020369. [PMID: 36838334 PMCID: PMC9961011 DOI: 10.3390/microorganisms11020369] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/11/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
This review highlights the different modes of synthesizing silver nanoparticles (AgNPs) from their elemental state to particle format and their mechanism of action against multidrug-resistant and biofilm-forming bacterial pathogens. Various studies have demonstrated that the AgNPs cause oxidative stress, protein dysfunction, membrane disruption, and DNA damage in bacteria, ultimately leading to bacterial death. AgNPs have also been found to alter the adhesion of bacterial cells to prevent biofilm formation. The benefits of using AgNPs in medicine are, to some extent, counter-weighted by their toxic effect on humans and the environment. In this review, we have compiled recent studies demonstrating the antibacterial activity of AgNPs, and we are discussing the known mechanisms of action of AgNPs against bacterial pathogens. Ongoing clinical trials involving AgNPs are briefly presented. A particular focus is placed on the mechanism of interaction of AgNPs with bacterial biofilms, which are a significant pathogenicity determinant. A brief overview of the use of AgNPs in other medical applications (e.g., diagnostics, promotion of wound healing) and the non-medical sectors is presented. Finally, current drawbacks and limitations of AgNPs use in medicine are discussed, and perspectives for the improved future use of functionalized AgNPs in medical applications are presented.
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Affiliation(s)
- Pragati Rajendra More
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Santosh Pandit
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Anna De Filippis
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, 84081 Baronissi, Italy
| | - Ivan Mijakovic
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
- Novo Nordisk Foundation Center for Bio Sustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
- Correspondence: (I.M.); (M.G.)
| | - Massimiliano Galdiero
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
- Correspondence: (I.M.); (M.G.)
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Silver-dendrimer nanocomposite as emerging therapeutics in anti-bacteria and beyond. Drug Resist Updat 2023; 68:100935. [PMID: 36774747 DOI: 10.1016/j.drup.2023.100935] [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: 12/26/2022] [Revised: 01/10/2023] [Accepted: 01/27/2023] [Indexed: 01/30/2023]
Abstract
To develop next-generation nanomedicine, theranostic nanotherapeutic strategies are increasingly being emphasized. In recent years, it is observed that the effective lifetime of anti-bacterial and anti-cancer agent is diminishing, which undermines the economic incentives necessary for clinical development and therapeutic applications. Thus, novel formulations ought to not only kill drug resistant strains and cancerous cells but also inhibit their formation. Recently, metallic nanoparticles [for example- silver (Ag) nanoparticles] have been widely investigated for their biomedical applications. The so-called applications necessitate the inclusion of these nanoparticles inside polymeric matrices (for example- dendrimer) leading to chemical functionalization of the metallic nanoparticles. Silver and silver nanoparticles' antibacterial activity has already been well established over years. Dendrimers due to their homogeneous highly branched structure and uniform composition are perfectly suitable for the inclusion of silver nanoparticles [Ag NPs]. Recently, the increasing trend in the development of Ag-dendrimer nanocomposites is attributed to the excellent antibacterial activity of Ag as well as dendrimer's unique properties like variable functional terminal ends and potential antibacterial effect necessarily. This review provides an informative overview regarding the numerous aspects of bactericidal and other biomedical applications of Ag-dendrimer nanocomposites, particularly emphasizing analysis of existing research and prospective worth to the pharmaceutical sector in future.
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de la Mata FJ, Gómez R, Cano J, Sánchez‐Nieves J, Ortega P, Gallego SG. Carbosilane dendritic nanostructures, highly versatile platforms for pharmaceutical applications. WIRES NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 15:e1871. [PMID: 36417901 DOI: 10.1002/wnan.1871] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 11/25/2022]
Abstract
Dendrimers are multifunctional molecules with well-defined size and structure due to the step-by-step synthetic procedures required in their preparation. Dendritic constructs based on carbosilane scaffolds present carbon-carbon and carbon-silicon bonds, which results in stable, lipophilic, inert, and flexible structures. These properties are highly appreciated in different areas, including the pharmaceutical field, as they can increase the interaction with cell membranes and improve the therapeutic action. This article summarizes the most recent advances in the pharmaceutical applications of carbosilane dendritic molecules, from therapeutics to diagnostics and prevention tools. Dendrimers decorated with cationic, anionic, or other moieties, including metallodendrimers; supramolecular assemblies; dendronized nanoparticles and surfaces; as well as dendritic networks like hydrogels are described. The collected examples confirm the potential of carbosilane dendrimers and dendritic materials as antiviral or antibacterial agents; in therapy against cancer, neurodegenerative disease, or oxidative stress; or many other biomedical applications. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Francisco Javier de la Mata
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
| | - Rafael Gómez
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
| | - Jesús Cano
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
| | - Javier Sánchez‐Nieves
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
| | - Paula Ortega
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
| | - Sandra García Gallego
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcala Alcalá de Henares Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III
- Institute Ramón y Cajal for Health Research (IRYCIS) Madrid Spain
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Kuc-Ciepluch D, Gorzkiewicz M, Pędziwiatr-Werbicka E, Barrios-Gumiel A, Lasak M, Mariak A, Sztandera K, Gomez R, de la Mata FJ, Lankoff A, Klajnert-Maculewicz B, Bryszewska M, Arabski M, Ciepluch K. The effect of surface modification of dendronized gold nanoparticles on activation and release of pyroptosis-inducing pro-inflammatory cytokines in presence of bacterial lipopolysaccharide in monocytes. Colloids Surf B Biointerfaces 2022; 217:112652. [PMID: 35772353 DOI: 10.1016/j.colsurfb.2022.112652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/31/2022] [Accepted: 06/17/2022] [Indexed: 11/15/2022]
Abstract
Biomedical applications of gold nanoparticles (AuNPs) may be limited by their toxicological effects. Although surface-modified AuNPs can induce apoptosis, less is known about whether they can induce other types of cell death. Pyroptosis, an inflammatory type of programmed cell death, can be induced in immune cells, especially macrophages, by bacterial endotoxins. Therefore, in this study, dendronized AuNPs were combined with bacterial lipopolysaccharides (LPSs) as the main stimulators of pro-inflammatory responses to test the induction of pyroptosis in THP-1 myeloid cell line. These AuNPs induced caspase-1 activity (3-4 times more compared to control) and enhanced the release of interleukin (IL)-18 and IL-1β without inducing gasdermin D cleavage and related pore formation. The production of pro-inflammatory cytokines occurred mainly visible during LPS treatment, although their secretion was observed only after administration of dendronized AuNPs (release of IL-1β to supernatant up to 80 pg/mL). These findings suggest that dendronized AuNPs can induce pyroptosis-like inflammatory mechanisms and that these mechanisms are enhanced in the presence of bacterial LPS. The intensity of this effect was dependent on AuNP surface modification. These results shed new light on the cytotoxicity of metal NPs, including immune responses, indicating that surface modifications play crucial roles in their nanotoxicological effects.
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Affiliation(s)
- Dorota Kuc-Ciepluch
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland; Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University Düsseldorf, Universitätsstr. 1, Düsseldorf 40225, Germany
| | - Elżbieta Pędziwiatr-Werbicka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Andrea Barrios-Gumiel
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - Magdalena Lasak
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Aleksandra Mariak
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Krzysztof Sztandera
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Rafael Gomez
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - F Javier de la Mata
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - Anna Lankoff
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland; Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw 03-195, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Michał Arabski
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Karol Ciepluch
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland.
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The Antibacterial Effect of PEGylated Carbosilane Dendrimers on P. aeruginosa Alone and in Combination with Phage-Derived Endolysin. Int J Mol Sci 2022; 23:ijms23031873. [PMID: 35163794 PMCID: PMC8836974 DOI: 10.3390/ijms23031873] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/27/2022] [Accepted: 02/02/2022] [Indexed: 12/12/2022] Open
Abstract
The search for new microbicide compounds is of an urgent need, especially against difficult-to-eradicate biofilm-forming bacteria. One attractive option is the application of cationic multivalent dendrimers as antibacterials and also as carriers of active molecules. These compounds require an adequate hydrophilic/hydrophobic structural balance to maximize the effect. Herein, we evaluated the antimicrobial activity of cationic carbosilane (CBS) dendrimers unmodified or modified with polyethylene glycol (PEG) units, against planktonic and biofilm-forming P. aeruginosa culture. Our study revealed that the presence of PEG destabilized the hydrophilic/hydrophobic balance but reduced the antibacterial activity measured by microbiological cultivation methods, laser interferometry and fluorescence microscopy. On the other hand, the activity can be improved by the combination of the CBS dendrimers with endolysin, a bacteriophage-encoded peptidoglycan hydrolase. This enzyme applied in the absence of the cationic CBS dendrimers is ineffective against Gram-negative bacteria because of the protective outer membrane shield. However, the endolysin-CBS dendrimer mixture enables the penetration through the membrane and then deterioration of the peptidoglycan layer, providing a synergic antimicrobial effect.
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Pędziwiatr-Werbicka E, Gorzkiewicz M, Horodecka K, Lach D, Barrios-Gumiel A, Sánchez-Nieves J, Gómez R, de la Mata FJ, Bryszewska M. PEGylation of Dendronized Gold Nanoparticles Affects Their Interaction with Thrombin and siRNA. J Phys Chem B 2021; 125:1196-1206. [PMID: 33481607 DOI: 10.1021/acs.jpcb.0c10177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The use of nonviral carriers based on nanomaterials is a promising strategy for modern gene therapy aimed at protecting the genetic material against degradation and enabling its efficient cellular uptake. To improve the effectiveness of nanocarriers in vivo, they are often modified with poly(ethylene glycol) (PEG) to reduce their toxicity, limit nonspecific binding by proteins in the bloodstream, and extend blood half-life. Thus, the selection of an appropriate degree of surface PEGylation is crucial to preserve the interaction of nanoparticles with the genetic material and to ensure its efficient transport to the site of action. Our research focuses on the use of innovative gold nanoparticles (AuNPs) coated with cationic carbosilane dendrons as carriers of siRNA. In this study, using dynamic light scattering and zeta potential measurements, circular dichroism, and gel electrophoresis, we investigated dendronized AuNPs modified to varying degrees with PEG in terms of their interactions with siRNA and thrombin to select the most promising PEGylated carrier for further research.
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Affiliation(s)
- Elżbieta Pędziwiatr-Werbicka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Katarzyna Horodecka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Dominika Lach
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Andrea Barrios-Gumiel
- Department of Organic and Inorganic Chemistry and Research Chemistry Institute "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain.,Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain.,Institute "Ramón y Cajal" for Health Research (IRYCIS), 28034 Madrid, Spain
| | - Javier Sánchez-Nieves
- Department of Organic and Inorganic Chemistry and Research Chemistry Institute "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain.,Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain.,Institute "Ramón y Cajal" for Health Research (IRYCIS), 28034 Madrid, Spain
| | - Rafael Gómez
- Department of Organic and Inorganic Chemistry and Research Chemistry Institute "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain.,Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain.,Institute "Ramón y Cajal" for Health Research (IRYCIS), 28034 Madrid, Spain
| | - Francisco Javier de la Mata
- Department of Organic and Inorganic Chemistry and Research Chemistry Institute "Andrés M. del Río" (IQAR), University of Alcalá, 28871 Alcalá de Henares, Spain.,Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain.,Institute "Ramón y Cajal" for Health Research (IRYCIS), 28034 Madrid, Spain
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland
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