1
|
Jardak M, Lami R, Saadaoui O, Jlidi H, Stien D, Aifa S, Mnif S. Control of Staphylococcus epidermidis biofilm by surfactins of an endophytic bacterium Bacillus sp. 15 F. Enzyme Microb Technol 2024; 180:110477. [PMID: 39003969 DOI: 10.1016/j.enzmictec.2024.110477] [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: 03/19/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024]
Abstract
The present paper deals with the preparation and annotation of a surfactin(s) derived from a culture of the endophytic bacterium Bacillus 15 F. The LC-MS analysis of the acetonitrile fraction confirmed the presence of surfactins Leu/Ile7 C15, Leu/Ile7 C14 and Leu/Ile7 C13 with [M+H]+ at m/z 1036.6895, 1022.6741 and 1008.6581, respectively. Various concentrations of the surfactin(s) (hereafter referred to as surfactin-15 F) were used to reduce the adhesion of Staphylococcus epidermidis S61, which served as a model for studying antibiofilm activity on polystyrene surfaces. Incubation of Staphylococcus epidermidis S61 with 62.5 µg/ml of surfactin-15 F resulted in almost complete inhibition of biofilm formation (90.3 ± 3.33 %), and a significant reduction of cell viability (resazurin-based fluorescence was more than 200 times lower). The antiadhesive effect of surfactin-15 F was confirmed by scanning electron microscopy. Surfactin-15 F demonstrated an eradication effect against preformed biofilm, causing severe disruption of Staphylococcus epidermidis S61 biofilm structure and reducing viability. The results suggest that surfactins produced by endophytic bacteria could be an alternative to synthetic products. Surfactin-15 F, used in wound dressings, demonstrated an efficient treatment of the preformed Staphylococcus epidermidis S61 biofilm, and thus having a great potential in medical applications.
Collapse
Affiliation(s)
- Marwa Jardak
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, P O Box 1177, Sidi Mansour Road, Sfax 3018, Tunisia.
| | - Raphaël Lami
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Banyuls-sur-Mer 66650, France
| | - Oumaima Saadaoui
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, P O Box 1177, Sidi Mansour Road, Sfax 3018, Tunisia
| | - Hajer Jlidi
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, P O Box 1177, Sidi Mansour Road, Sfax 3018, Tunisia
| | - Didier Stien
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Banyuls-sur-Mer 66650, France
| | - Sami Aifa
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, P O Box 1177, Sidi Mansour Road, Sfax 3018, Tunisia
| | - Sami Mnif
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, P O Box 1177, Sidi Mansour Road, Sfax 3018, Tunisia
| |
Collapse
|
2
|
Gu J, An Q, Huang MC, Ge P, Xue CH. Self-Cleaning Antibacterial Composite Coating of Fluorinated Acrylic Resin and Ag/SiO 2 Nanoparticles with Quaternary Ammonium. Polymers (Basel) 2024; 16:1885. [PMID: 39000741 PMCID: PMC11244108 DOI: 10.3390/polym16131885] [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: 09/06/2023] [Revised: 06/13/2024] [Accepted: 06/25/2024] [Indexed: 07/17/2024] Open
Abstract
With improvements in living standards, the demand for antibacterial self-cleaning coatings has significantly increased. In this work, self-cleaning coatings with antibacterial properties were fabricated by spray-coating a composite of fluorinated acrylic resin and Ag/SiO2 nanoparticles with quaternary ammonium salts. The synergistic action of the quaternary ammonium salts and silver nanostructures caused the coating to show a dual antibacterial effect. The Ag/SiO2 nanoparticles roughened the coating's surface and, in combination with the fluorinated chains, provided the surface a superhydrophobic self-cleaning property with a contact angle of 156° and a sliding angle of less than 2°. Notably, the composite coating withstood 100 abrasion cycles without losing its superhydrophobicity and the contact angle is still exceeded 150° after 60 h of immersion solutions with different pH values, demonstrating outstanding wear resistance and acid/alkali stability. The incorporation of nanostructured antibacterial agents was effective in improving the roughness and antibacterial properties of the low-surface-energy resin, resulting in a self-cleaning antibacterial composite coating. This method may pave a new route for the design of functional coating materials with excellent overall performance.
Collapse
Affiliation(s)
- Jiangdong Gu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Qiufeng An
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Meng-Chen Huang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Ping Ge
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Chao-Hua Xue
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| |
Collapse
|
3
|
Graziani G, Ghezzi D, Boi M, Baldini N, Sassoni E, Cappelletti M, Fedrizzi G, Maglio M, Salamanna F, Tschon M, Martini L, Zaffagnini S, Fini M, Sartori M. Ionized jet deposition of silver nanostructured coatings: Assessment of chemico-physical and biological behavior for application in orthopedics. BIOMATERIALS ADVANCES 2024; 159:213815. [PMID: 38447383 DOI: 10.1016/j.bioadv.2024.213815] [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: 07/19/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024]
Abstract
Infection is one of the main issues connected to implantation of biomedical devices and represents a very difficult issue to tackle, for clinicians and for patients. This study aimed at tackling infection through antibacterial nanostructured silver coatings manufactured by Ionized Jet Deposition (IJD) for application as new and advanced coating systems for medical devices. Films composition and morphology depending on deposition parameters were investigated and their performances evaluated by correlating these properties with the antibacterial and antibiofilm efficacy of the coatings, against Escherichia coli and Staphylococcus aureus strains and with their cytotoxicity towards human cell line fibroblasts. The biocompatibility of the coatings, the nanotoxicity, and the safety of the proposed approach were evaluated, for the first time, in vitro and in vivo by rat subcutaneous implant models. Different deposition times, corresponding to different thicknesses, were selected and compared. All silver coatings exhibited a highly homogeneous surface composed of nanosized spherical aggregates. All coatings having a thickness of 50 nm and above showed high antibacterial efficacy, while none of the tested options caused cytotoxicity when tested in vitro. Indeed, silver films impacted on bacterial strains viability and capability to adhere to the substrate, in a thickness-dependent manner. The nanostructure obtained by IJD permitted to mitigate the toxicity of silver, conferring strong antibacterial and anti-adhesive features, without affecting the coatings biocompatibility. At the explant, the coatings were still present although they showed signs of progressive dissolution, compatible with the release of silver, but no cracking, delamination or in vivo toxicity was observed.
Collapse
Affiliation(s)
- Gabriela Graziani
- BST-NaBi Biomedical Science and Technologies Laboratory and Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Daniele Ghezzi
- BST-NaBi Biomedical Science and Technologies Laboratory and Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 42, 40126 Bologna, Italy.
| | - Marco Boi
- BST-NaBi Biomedical Science and Technologies Laboratory and Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Nicola Baldini
- BST-NaBi Biomedical Science and Technologies Laboratory and Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Massarenti 9, 40128 Bologna, Italy
| | - Enrico Sassoni
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Martina Cappelletti
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 42, 40126 Bologna, Italy.
| | - Giorgio Fedrizzi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia-Romagna (IZSLER), Reparto Chimico degli Alimenti, Via Pietro Fiorini 5, 40127 Bologna, Italy.
| | - Melania Maglio
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Francesca Salamanna
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Matilde Tschon
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Lucia Martini
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Stefano Zaffagnini
- II Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, via Pupilli 1, 40136 Bologna, Italy.
| | - Milena Fini
- Scientific Direction, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Maria Sartori
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| |
Collapse
|
4
|
Ghezzi D, Graziani G, Cappelletti M, Fadeeva IV, Montesissa M, Sassoni E, Borciani G, Barbaro K, Boi M, Baldini N, Rau JV. New strontium-based coatings show activity against pathogenic bacteria in spine infection. Front Bioeng Biotechnol 2024; 12:1347811. [PMID: 38665815 PMCID: PMC11044685 DOI: 10.3389/fbioe.2024.1347811] [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: 12/04/2023] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Infections of implants and prostheses represent relevant complications associated with the implantation of biomedical devices in spine surgery. Indeed, due to the length of the surgical procedures and the need to implant invasive devices, infections have high incidence, interfere with osseointegration, and are becoming increasingly difficult to threat with common therapies due to the acquisition of antibiotic resistance genes by pathogenic bacteria. The application of metal-substituted tricalcium phosphate coatings onto the biomedical devices is a promising strategy to simultaneously prevent bacterial infections and promote osseointegration/osseoinduction. Strontium-substituted tricalcium phosphate (Sr-TCP) is known to be an encouraging formulation with osseoinductive properties, but its antimicrobial potential is still unexplored. To this end, novel Sr-TCP coatings were manufactured by Ionized Jet Deposition technology and characterized for their physiochemical and morphological properties, cytotoxicity, and bioactivity against Escherichia coli ATCC 8739 and Staphylococcus aureus ATCC 6538P human pathogenic strains. The coatings are nanostructured, as they are composed by aggregates with diameters from 90 nm up to 1 μm, and their morphology depends significantly on the deposition time. The Sr-TCP coatings did not exhibit any cytotoxic effects on human cell lines and provided an inhibitory effect on the planktonic growth of E. coli and S. aureus strains after 8 h of incubation. Furthermore, bacterial adhesion (after 4 h of exposure) and biofilm formation (after 24 h of cell growth) were significantly reduced when the strains were cultured on Sr-TCP compared to tricalcium phosphate only coatings. On Sr-TCP coatings, E. coli and S. aureus cells lost their organization in a biofilm-like structure and showed morphological alterations due to the toxic effect of the metal. These results demonstrate the stability and anti-adhesion/antibiofilm properties of IJD-manufactured Sr-TCP coatings, which represent potential candidates for future applications to prevent prostheses infections and to promote osteointegration/osteoinduction.
Collapse
Affiliation(s)
- Daniele Ghezzi
- University of Bologna, Department of Pharmacy and Biotechnology, Bologna, Italy
| | - Gabriela Graziani
- IRCCS Istituto Ortopedico Rizzoli, Biomedical Science and Technologies and Nanobiotechnology Lab, Bologna, Italy
| | - Martina Cappelletti
- University of Bologna, Department of Pharmacy and Biotechnology, Bologna, Italy
| | - Inna V. Fadeeva
- AA Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Matteo Montesissa
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Enrico Sassoni
- University of Bologna, Department of Civil, Chemical, Environmental and Materials Engineering, Bologna, Italy
| | - Giorgia Borciani
- IRCCS Istituto Ortopedico Rizzoli, Biomedical Science and Technologies and Nanobiotechnology Lab, Bologna, Italy
| | | | - Marco Boi
- IRCCS Istituto Ortopedico Rizzoli, Biomedical Science and Technologies and Nanobiotechnology Lab, Bologna, Italy
| | - Nicola Baldini
- IRCCS Istituto Ortopedico Rizzoli, Biomedical Science and Technologies and Nanobiotechnology Lab, Bologna, Italy
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Julietta V. Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| |
Collapse
|
5
|
Graziani G, Ghezzi D, Nudelman F, Sassoni E, Laidlaw F, Cappelletti M, Boi M, Borciani G, Milita S, Bianchi M, Baldini N, Falini G. A natural biogenic fluorapatite as a new biomaterial for orthopedics and dentistry: antibacterial activity of lingula seashell and its use for nanostructured biomimetic coatings. J Mater Chem B 2024; 12:2083-2098. [PMID: 38284627 DOI: 10.1039/d3tb02454g] [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: 01/30/2024]
Abstract
Calcium phosphates are widely studied in orthopedics and dentistry, to obtain biomimetic and antibacterial implants. However, the multi-substituted composition of mineralized tissues is not fully reproducible from synthetic procedures. Here, for the first time, we investigate the possible use of a natural, fluorapatite-based material, i.e., Lingula anatina seashell, resembling the composition of bone and enamel, as a biomaterial source for orthopedics and dentistry. Indeed, thanks to its unique mineralization process and conditions, L. anatina seashell is among the few natural apatite-based shells, and naturally contains ions having possible antibacterial efficacy, i.e., fluorine and zinc. After characterization, we explore its deposition by ionized jet deposition (IJD), to obtain nanostructured coatings for implantable devices. For the first time, we demonstrate that L. anatina seashells have strong antibacterial properties. Indeed, they significantly inhibit planktonic growth and cell adhesion of both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. The two strains show different susceptibility to the mineral and organic parts of the seashells, the first being more susceptible to zinc and fluorine in the mineral part, and the second to the organic (chitin-based) component. Upon deposition by IJD, all films exhibit a nanostructured morphology and sub-micrometric thickness. The multi-doped, complex composition of the target is maintained in the coating, demonstrating the feasibility of deposition of coatings starting from biogenic precursors (seashells). In conclusion, Lingula seashell-based coatings are non-cytotoxic with strong antimicrobial capability, especially against Gram-positive strains, consistently with their higher susceptibility to fluorine and zinc. Importantly, these properties are improved compared to synthetic fluorapatite, showing that the films are promising for antimicrobial applications.
Collapse
Affiliation(s)
- Gabriela Graziani
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Daniele Ghezzi
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Fabio Nudelman
- EaStCHEM School of Chemistry, The University of Edinburgh, Edinburgh, UK
| | - Enrico Sassoni
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Bologna, Italy
| | - Fraser Laidlaw
- School of Physics and Astronomy, The University of Edinburgh, Edinburgh, UK
| | - Martina Cappelletti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marco Boi
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Giorgia Borciani
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Silvia Milita
- CNR-Institute for Microelectronic and Microsystems, Bologna, Italy
| | - Michele Bianchi
- Department of Life Sciences, Università di Modena e Reggio Emilia, Modena, Italy
| | - Nicola Baldini
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Giuseppe Falini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy. giuseppe.falini(at)unibo.it
| |
Collapse
|
6
|
Kaur R, Kaur K, Alyami MH, Lang DK, Saini B, Bayan MF, Chandrasekaran B. Combating Microbial Infections Using Metal-Based Nanoparticles as Potential Therapeutic Alternatives. Antibiotics (Basel) 2023; 12:antibiotics12050909. [PMID: 37237812 DOI: 10.3390/antibiotics12050909] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/19/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
The nature of microorganisms and the efficiency of antimicrobials have witnessed a huge co-dependent change in their dynamics over the last few decades. On the other side, metals and metallic compounds have gained popularity owing to their effectiveness against various microbial strains. A structured search of both research and review papers was conducted via different electronic databases, such as PubMed, Bentham, Springer, and Science Direct, among others, for the present review. Along with these, marketed products, patents, and Clinicaltrials.gov were also referred to for our review. Different microbes such as bacteria, fungi, etc., and their diverse species and strains have been reviewed and found to be sensitive to metal-carrying formulations. The products are observed to restrict growth, multiplication, and biofilm formation effectively and adequately. Silver has an apt use in this area of treatment and recovery, and other metals like copper, gold, iron, and gallium have also been observed to generate antimicrobial activity. The present review identified membrane disruption, oxidative stress, and interaction with proteins and enzymes to be the primary microbicidal processes. Elaborating the action, nanoparticles and nanosystems are shown to work in our favor in well excelled and rational ways.
Collapse
Affiliation(s)
- Rajwinder Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Kirandeep Kaur
- Department of Clinical Safety and Pharmacovigilance, Soterius India Private Limited, Nehru Place, Delhi 110019, India
| | - Mohammad H Alyami
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 66462, Saudi Arabia
| | | | - Balraj Saini
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Mohammad F Bayan
- Faculty of Pharmacy, Philadelphia University, P.O. Box 1, Amman 19392, Jordan
| | | |
Collapse
|