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Yang R, Zhang H, Marfavi Z, Lv Q, Han Y, Sun K, Yuan C, Tao K. Infiltrating Perfluorocarbon Nanoemulsion and Sensitizing Ultrasound Cavitation to Eradicate Biofilms. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3126-3138. [PMID: 38191301 DOI: 10.1021/acsami.3c15167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Developing strategies for the treatment of bacterial biofilms is challenging due to their complex and resilient structure, low permeability to therapeutics, and ability to protect resident pathogens. Herein, we demonstrate that a polylysine-stabilized perfluorocarbon nanoemulsion is favored for penetrating biofilms and sensitizing the cavitation effect of low-intensity ultrasound, resulting in the dispersal of extracellular polymeric substances and killing of the protected cells. Through experiments, we observed a complete penetration of the nanoemulsion in a 40 μm Pseudomonas aeruginosa biofilm and demonstrated that it was induced by the fluidic perfluorocarbon, possibly attributing to its low surface tension. Furthermore, we presented an almost complete antibiofilm effect with a low-intensity ultrasound (1 MHz, 0.75 W/cm2, 5 min) in diverse cases, including cultured biofilms, colonized urinary catheters, and chronic wounds. During the treatment process, the perfluorocarbon phase enhanced the number and imploding energy of ultrasound cavities, thoroughly divided the biofilm structure, prevented biofilm self-healing, and sterilized the resident pathogens. Thus, the penetration and sensitization of the nanoemulsion might serve as a facile and potent strategy for eradicating biofilms in various applications.
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Affiliation(s)
- Ruihao Yang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Haoran Zhang
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zeinab Marfavi
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Quanjie Lv
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yijun Han
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Kang Sun
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Congli Yuan
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ke Tao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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Yang R, Zhang H, Sun K, Yuan C, Tao K. Nano-Emulsified Perfluorooctyl Bromide Can Infiltrate Gram-Negative Bacteria and Sensitize Them to Ultrasound. NANO LETTERS 2024; 24:501-510. [PMID: 38147357 DOI: 10.1021/acs.nanolett.3c04545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Gram-negative (G-) bacterial infections remain one of the most urgent global health threats, because the distinctive envelope structure hinders the penetration of therapeutics. Here, we showed that a perfluorooctyl bromide nanoemulsion (PFOB NE) uniquely interacts with G- bacteria. After cell envelope attachment, the PFOB can infiltrate the cell and was diffused throughout. In this process, it impaired the membranes by disintegrating phospholipid molecules, enhancing the consequent ultrasonic cavitation to break the envelope. We identified through ultrasound that the NE had remarkable bactericidal effects against various antibiotic-resistant pathogens. Using in situ sterilization, this approach accelerated the recovery of bacteria-infected murine skin wounds. Thus, combining PFOB and ultrasound might be an alternative tool for conquering the growing threat of G- pathogens.
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Affiliation(s)
- Ruihao Yang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Haoran Zhang
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Kang Sun
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Congli Yuan
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ke Tao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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Kargaki ME, Arfara F, Iatrou H, Tsitsilianis C. pH-Sensitive Poly(acrylic acid)-g-poly(L-lysine) Charge-Driven Self-Assembling Hydrogels with 3D-Printability and Self-Healing Properties. Gels 2023; 9:512. [PMID: 37504391 PMCID: PMC10379232 DOI: 10.3390/gels9070512] [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: 06/14/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/29/2023] Open
Abstract
We report the rheological behavior of aqueous solutions of a graft copolymer polyampholyte, constituted of polyacrylic acid (PAA) backbone grafted by Poly(L-lysine) (PAA-b-PLL). The graft copolymer self-assembles in aqueous media, forming a three-dimensional (3D) network through polyelectrolyte complexation of the oppositely charged PAA and PLL segments. Rheological investigations showed that the hydrogel exhibits interesting properties, namely, relatively low critical gel concentration, elastic response with slow dynamics, remarkable extended critical strain to flow, shear responsiveness, injectability, 3D printability and self-healing. Due to the weak nature of the involved polyelectrolyte segments, the hydrogel properties display pH-dependency, and they are affected by the presence of salt. Especially upon varying pH, the PLL secondary structure changes from random coil to α-helix, affecting the crosslinking structural mode and, in turn, the overall network structure as reflected in the rheological properties. Thanks to the biocompatibility of the copolymer constituents and the biodegradability of PLL, the designed gelator seems to exhibit potential for bioapplications.
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Affiliation(s)
- Maria-Eleni Kargaki
- Department of Chemical Engineering, University of Patras, 26500 Patras, Greece
| | - Foteini Arfara
- Department of Chemistry, University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece
| | - Hermis Iatrou
- Department of Chemistry, University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece
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Dinda P, Anas M, Banerjee P, Mandal TK. Dual Thermoresponsive Boc-Lysine-Based Acryl Polymer: RAFT Kinetics and Anti-Protein-Fouling of Its Zwitterionic Form. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priyanka Dinda
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Mahammad Anas
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Palash Banerjee
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Tarun K. Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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Soldani G, Mercogliano R. Bioartificial Polymeric Materials Obtained from Blends of Synthetic Polymers with Fibrin and Collagen. Int J Artif Organs 2018. [DOI: 10.1177/039139889101400510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- G. Soldani
- Istituto di Fisiologia Clinica del CNR, Pisa
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Thünemann AF, Müller M, Dautzenberg H, Joanny JF, Löwen H. Polyelectrolyte Complexes. ADVANCES IN POLYMER SCIENCE 2012. [DOI: 10.1007/b11350] [Citation(s) in RCA: 306] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Müller M. Sizing, Shaping and Pharmaceutical Applications of Polyelectrolyte Complex Nanoparticles. ADVANCES IN POLYMER SCIENCE 2012. [DOI: 10.1007/12_2012_170] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Leclercq L, Boustta M, Vert M. Dynamics of polyelectrolyte complex formation and stability as a polyanion is progressively added to a polycation under modeled physicochemical blood conditions. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511406027] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To understand the fate of anionic macromolecular species when injected into blood, poly(acrylic acid) and poly(L-lysine citramide) polyanions, with better charge densities, and the poly(L-lysine) polycation were used as models of negatively charged polymer—drug conjugates and positively charged blood proteins, respectively. To mimic an intravenous injection, the polyanion was added to the poly(L-lysine) stepwise at room temperature. The polyelectrolyte complexes formed as precipitates and the molar mass fractionation was observed from one fraction to the other, especially in the case of largely polydispersed poly(L-lysine). The salt concentration necessary to return each fraction of complexed polyelectrolyte back to solution varied linearly with the logarithm of the molar mass of the polycation component. The physicochemical characteristics data of the polyelectrolytes and the media are compared to previously reported reverse mixing mode when the polycation is introduced into a solution of polyanions.
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Affiliation(s)
- L. Leclercq
- Max Mousseron Institute of Biomolecules, UMR CNRS 5247, University Montpellier 1, Group CRBA, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France,
| | - M. Boustta
- Max Mousseron Institute of Biomolecules, UMR CNRS 5247, University Montpellier 1, Group CRBA, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France
| | - M. Vert
- Max Mousseron Institute of Biomolecules, UMR CNRS 5247, University Montpellier 1, Group CRBA, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France
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Giusti P, Lazzeri L, Barbani N, Lelli L, De Petris S, Cascone MG. Blends of natural and synthetic polymers: A new route to novel biomaterials. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19940780124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu CY. A novel method to characterize the compatibilizer effect in polymer blend. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polb.21310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Synthetic nucleic acid analogs preparation and interaction. ADVANCES IN POLYMER SCIENCE 2005. [DOI: 10.1007/3-540-10554-9_9] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Müller M, Reihs T, Ouyang W. Needlelike and spherical polyelectrolyte complex nanoparticles of poly(l-lysine) and copolymers of maleic acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:465-469. [PMID: 15620340 DOI: 10.1021/la0483257] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report on the bulk and surface properties of dispersions consisting of nonstoichiometric polyelectrolyte complex (PEC) nanoparticles. PEC nanoparticles were prepared by mixing poly(l-lysine) (PLL) or poly(diallyldimethylammonium chloride) (PDADMAC) with poly(maleic acid-co-alpha-methylstyrene) (PMA-MS) or poly(maleic acid-co-propylene) (PMA-P). The monomolar mixing ratio was n-/n+ = 0.6, and the concentration ranged from 1 to 6 mmol/L. Subsequent centrifugation enabled the separation of the excess polycation, resulting in a stable coacervate phase further used in the experiments. The bulk phase parameters turbidity and hydrodynamic radius (R(h)) of the PEC nanoparticles showed a linear dependence on the total polymer content independently of the mixed polyelectrolytes. This can be interpreted by the increased collision probability of the polyelectrolyte chains when the overlap concentration is approached or exceeded. Different morphologies of the cationic PEC nanoparticles, which were solution-cast onto Si supports, were obtained by atomic force microscopy (AFM). The combinations of PLL/PMA-MS and PDADMAC/PMA-MS revealed more or less hemispherical particle shapes, whereas that of PLL/PMA-P revealed an elongated needlelike particle shape. Circular dichroism and attenuated total reflection Fourier transform infrared (ATR-FTIR) measurements proved the alpha-helical conformation for the PEC PLL/PMA-P and the random coil conformation for the PEC PLL/PMA-MS. We conclude that stiff alpha-helical PLL induces anisotropic elongated PEC nanoparticles, whereas randomly coiled PLL forms isotropic spherical PEC nanoparticles.
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Affiliation(s)
- M Müller
- Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, Germany.
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Gao Q, Shao Z, Sun Y, Lin H, Zhou P, Yu T. Complex Formation of Silk Fibroin with Poly(acrylic acid). Polym J 2000. [DOI: 10.1295/polymj.32.269] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Müller M, Briššová M, Rieser T, Powers A, Lunkwitz K. Deposition and properties of polyelectrolyte multilayers studied by ATR-FTIR spectroscopy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 1999. [DOI: 10.1016/s0928-4931(99)00033-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Giusti P, Lazzeri L, De Petris S, Palla M, Cascone MG. Collagen-based new bioartificial polymeric materials. Biomaterials 1994; 15:1229-33. [PMID: 7703319 DOI: 10.1016/0142-9612(94)90274-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Bioartificial polymeric materials, based on blends of biological and synthetic polymers, have been proposed as new materials for applications in the biomedical field. They should usefully combine the biocompatibility of the biological component with the physical and mechanical properties of the synthetic component. Blends of collagen with either poly(vinyl alcohol) or poly(acrylic acid) have been prepared by mixing aqueous solutions of the two polymers. Differential scanning calorimetry and dynamic mechanical thermal analysis has been carried out to investigate the miscibility properties of the polymers and the mechanical behaviour of the blends.
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Affiliation(s)
- P Giusti
- Department of Chemical Engineering, University of Pisa, Italy
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Nagata Y, Kinoshita T, Takizawa A, Tsujita Y, Yoshimizu H. Interaction between anα-Helical Polypeptide Containing Side-Chain Pyridyl Groups and Poly(4-vinylpyridine) in the Ternary Cu2+Ion Complex. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1994. [DOI: 10.1246/bcsj.67.773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hara M, Nakajima A. Formation of Polyelectrolyte Complex of Heparin with Aminoacetalized Poly(vinyl alcohol). Polym J 1978. [DOI: 10.1295/polymj.10.37] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sato H, Hayashi T, Nakajima A. The Effect of Polyelectrolyte Complex Formation on pH-Induced Conformational Changes of Polypeptides for Systems of Poly(L-glutamic acid)—Poly(ethyleneimine) and Poly(L-lysine)—Carboxymethyl Cellulose. Polym J 1976. [DOI: 10.1295/polymj.8.517] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shinoda K, Sakai K, Hayashi T, Nakajima A. Effect of the Configuration of Poly(methacrylic acid) on the Complex Formation with Poly-L-lysine. Polym J 1976. [DOI: 10.1295/polymj.8.208] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shinoda K, Hayashi T, Nakajima A. Complex Formation of Poly-L-lysine with Sodium Cellulose Sulfate. Polym J 1976. [DOI: 10.1295/polymj.8.216] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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