1
|
Liang J, Xiao K, Wang X, Hou T, Zeng C, Gao X, Wang B, Zhong C. Revisiting Solar Energy Flow in Nanomaterial-Microorganism Hybrid Systems. Chem Rev 2024. [PMID: 38900019 DOI: 10.1021/acs.chemrev.3c00831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Nanomaterial-microorganism hybrid systems (NMHSs), integrating semiconductor nanomaterials with microorganisms, present a promising platform for broadband solar energy harvesting, high-efficiency carbon reduction, and sustainable chemical production. While studies underscore its potential in diverse solar-to-chemical energy conversions, prevailing NMHSs grapple with suboptimal energy conversion efficiency. Such limitations stem predominantly from an insufficient systematic exploration of the mechanisms dictating solar energy flow. This review provides a systematic overview of the notable advancements in this nascent field, with a particular focus on the discussion of three pivotal steps of energy flow: solar energy capture, cross-membrane energy transport, and energy conversion into chemicals. While key challenges faced in each stage are independently identified and discussed, viable solutions are correspondingly postulated. In view of the interplay of the three steps in affecting the overall efficiency of solar-to-chemical energy conversion, subsequent discussions thus take an integrative and systematic viewpoint to comprehend, analyze and improve the solar energy flow in the current NMHSs of different configurations, and highlighting the contemporary techniques that can be employed to investigate various aspects of energy flow within NMHSs. Finally, a concluding section summarizes opportunities for future research, providing a roadmap for the continued development and optimization of NMHSs.
Collapse
Affiliation(s)
- Jun Liang
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Kemeng Xiao
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xinyu Wang
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Tianfeng Hou
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Cuiping Zeng
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiang Gao
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Bo Wang
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Chao Zhong
- Key Laboratory of Quantitative Synthetic Biology, Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| |
Collapse
|
2
|
Ubah CS, Pokhrel LR, Williams JE, Akula SM, Richards SL, Kearney GD, Williams A. Antibacterial efficacy, mode of action, and safety of a novel nano-antibiotic against antibiotic-resistant Escherichia coli strains. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171675. [PMID: 38485022 DOI: 10.1016/j.scitotenv.2024.171675] [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: 11/27/2023] [Revised: 02/17/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
Globally rising antibiotic-resistant (AR) and multi-drug resistant (MDR) bacterial infections are of public health concern due to treatment failure with current antibiotics. Enterobacteria, particularly Escherichia coli, cause infections of surgical wound, bloodstream, and urinary tract, including pneumonia and sepsis. Herein, we tested in vitro antibacterial efficacy, mode of action (MoA), and safety of novel amino-functionalized silver nanoparticles (NH2-AgNP) against the AR bacteria. Two AR E. coli strains (i.e., ampicillin- and kanamycin-resistant E. coli), including a susceptible strain of E. coli DH5α, were tested for susceptibility to NH2-AgNP using Kirby-Bauer disk diffusion and standard growth assays. Dynamic light scattering (DLS) was used to determine cell debris and relative conductance was used as a measure of cell leakage, and results were confirmed with transmission electron microscopy (TEM). Multiple oxidative stress assays were used for in vitro safety evaluation of NH2-AgNP in human lung epithelial cells. Results showed that ampicillin and kanamycin did not inhibit growth in either AR bacterial strain with doses up to 160 μg/mL tested. NH2-AgNP exhibited broad-spectrum bactericidal activity, inhibiting the growth of all three bacterial strains at doses ≥1 μg/mL. DLS and TEM revealed cell debris formation and cell leakage upon NH2-AgNP treatment, suggesting two possible MoAs: electrostatic interactions followed by cell wall damage. Safety evaluation revealed NH2-AgNP as noncytotoxic and antioxidative to human lung epithelial cells. Taken together, these results suggest that NH2-AgNP may serve as an effective and safer bactericidal therapy against AR bacterial infections compared to common antibiotics.
Collapse
Affiliation(s)
- Chukwudi S Ubah
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Lok R Pokhrel
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, USA.
| | - Jordan E Williams
- Environmental Health Science Program, Department of Health Education and Promotion, College of Health and Human Performance, East Carolina University, Greenville, NC, USA
| | - Shaw M Akula
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Stephanie L Richards
- Environmental Health Science Program, Department of Health Education and Promotion, College of Health and Human Performance, East Carolina University, Greenville, NC, USA
| | - Gregory D Kearney
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | | |
Collapse
|
3
|
Haidar LL, Bilek M, Akhavan B. Surface Bio-engineered Polymeric Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310876. [PMID: 38396265 DOI: 10.1002/smll.202310876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Surface bio-engineering of polymeric nanoparticles (PNPs) has emerged as a cornerstone in contemporary biomedical research, presenting a transformative avenue that can revolutionize diagnostics, therapies, and drug delivery systems. The approach involves integrating bioactive elements on the surfaces of PNPs, aiming to provide them with functionalities to enable precise, targeted, and favorable interactions with biological components within cellular environments. However, the full potential of surface bio-engineered PNPs in biomedicine is hampered by obstacles, including precise control over surface modifications, stability in biological environments, and lasting targeted interactions with cells or tissues. Concerns like scalability, reproducibility, and long-term safety also impede translation to clinical practice. In this review, these challenges in the context of recent breakthroughs in developing surface-biofunctionalized PNPs for various applications, from biosensing and bioimaging to targeted delivery of therapeutics are discussed. Particular attention is given to bonding mechanisms that underlie the attachment of bioactive moieties to PNP surfaces. The stability and efficacy of surface-bioengineered PNPs are critically reviewed in disease detection, diagnostics, and treatment, both in vitro and in vivo settings. Insights into existing challenges and limitations impeding progress are provided, and a forward-looking discussion on the field's future is presented. The paper concludes with recommendations to accelerate the clinical translation of surface bio-engineered PNPs.
Collapse
Affiliation(s)
- Laura Libnan Haidar
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Marcela Bilek
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Behnam Akhavan
- School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- School of Engineering, University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute (HMRI), Precision Medicine Program, New Lambton Heights, NSW, 2305, Australia
| |
Collapse
|
4
|
Xue Y, Zhao Z, Lei Y, Qiu Z, Li X, Wang C, Cui R, Shen S, Fang L, Wang Y, Ji J, Chen Z, Zhu H, Zhu B. Influence of the linkage between long alkyl tails and cationic groups on membrane activity of nano-sized hyperbranched polyquaterniums. J Colloid Interface Sci 2024; 653:894-907. [PMID: 37774653 DOI: 10.1016/j.jcis.2023.09.131] [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: 02/12/2023] [Revised: 09/14/2023] [Accepted: 09/21/2023] [Indexed: 10/01/2023]
Abstract
The recurrent emergence of serious pathogens necessitates novel insights and highly efficient antibacterial agents. However, the innate inability of metal ions and reactive oxygen species (ROS) to differentiate between bacteria and mammalian cells presents a challenge, limiting the selectivity crucial for an ideal antimicrobial solution. Herein, we present a systematic exploration involving two variants of nano-sized hyperbranched polyquaterniums (NHBPQs) - one featuring a lengthy alkyl tail linked to the ammonium unit at the N-atom center (NHBPQ-A), and the other in a segregated configuration (NHBPQ-B). The exterior alkyl chain chains act as a barrier to the cationic group's non-specific adsorption due to spatial site resistance, causing NHBPQ-A in broad-spectrum cytotoxicity. Conversely, the distinct molecular configuration of NHBPQ-B in the segregated state affords greater flexibility, allowing the cationic groups to be released and interact non-specifically, finally resulting in selective bactericidal activity. Leveraging this selectivity, the optimized NHBPQ-B exhibits robust anti-infectious performance in a model of methicillin-resistant Staphylococcus aureus (MRSA)-infected wounds. This work establishes a promising avenue for biocompatible NHBPQs, holding significant potential in addressing MRSA infections and ameliorating both genetically encoded and phenotypic antibiotic resistance mechanisms.
Collapse
Affiliation(s)
- Yunyun Xue
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; Center of Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing, 312000, China
| | - Zihao Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; Center of Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing, 312000, China
| | - Yuqing Lei
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zelin Qiu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xinfang Li
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chuyao Wang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ronglu Cui
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shuyang Shen
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lifeng Fang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Youxiang Wang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jian Ji
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Baoku Zhu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; Center of Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing, 312000, China.
| |
Collapse
|
5
|
Mondal A, Pandit S, Sahoo J, Subramaniam Y, De M. Post-functionalization of sulfur quantum dots and their aggregation-dependent antibacterial activity. NANOSCALE 2023; 15:18624-18638. [PMID: 37975185 DOI: 10.1039/d3nr04287a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Sulfur quantum dots (SQDs) have emerged as an intriguing class of luminescent nanomaterial due to their exceptional physiochemical and optoelectronic properties. However, their biomedical application is still in its infancy due to the limited scope of their surface functionalization. Herein, we explored the surface functionalization of SQDs through different thiol ligands with tuneable functionality and tested their antibacterial efficacy. Notably, very high antibacterial activity of functionalized SQDs (10-25 ng ml-1) was noted, which is 105 times higher compared to that of nonfunctionalized SQDs. Moreover, a rare phenomenon of the reverse trend of antibacterial activity through surface modification was observed, with increasing surface hydrophobicity of various nanomaterials as the antibacterial activity increased. However, we also noted that as the surface hydrophobicity increased, the SQDs tended to exhibit a propensity for aggregation, which consequently decreased their antibacterial efficacy. This identical pattern was also evident in in vivo assessments. Overall, this study illuminates the importance of surface modifications of SQDs and the role of surface hydrophobicity in the development of antibacterial agents.
Collapse
Affiliation(s)
- Avijit Mondal
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Subrata Pandit
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Jagabandhu Sahoo
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | | | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| |
Collapse
|
6
|
Shao WB, Luo RS, Meng J, Lv XK, Xiang HM, Xiao WL, Zhou X, Liu LW, Wu ZB, Yang S. Engineering Phenothiazine-Based Functional Mimics of Host Defense Peptides as New Agrochemical Candidates: Design, Synthesis, and Antibacterial Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37906428 DOI: 10.1021/acs.jafc.3c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
In the protracted "arms race" between host and plant pathogenic bacteria, host organisms have evolved powerful weapons known as host defense peptides (HDPs). However, natural HDPs are not suitable for large-scale applications; therefore, researchers have chosen to develop bespoke small-molecule functional mimics. Phenothiazine derivatives were developed as functional HDPs mimics, owing to their broad biological activity and high lipophilicity. The phenothiazine analogues designed in this study exhibited excellent in vitro bioactivity against the three Gram-negative bacteria Xanthomonas oryzae pv oryzae, Xanthomonas axonopodis pv citri, and Pseudomonas syringae pv actinidiae, with optimal EC50 values of 0.80, 0.31, and 1.91 μg/mL, respectively. Preliminary evidence suggests that compound C2 may act on bacterial cell membranes and interact with bacterial Deoxyribonucleic acid in the groove binding mode. In vivo trials showed that compound C2 was highly effective against rice leaf blight (51.97-56.69%), with activity superior to those of bismerthiazol (40.7-43.4%) and thiodiazole copper (30.2-37.1%). Our study provides strong evidence to support the development of phenothiazine derivatives into pesticide candidates.
Collapse
Affiliation(s)
- Wu-Bin Shao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Rong-Shuang Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jiao Meng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiao-Kang Lv
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hong-Mei Xiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wan-Lin Xiao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhi-Bing Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
7
|
Teixeira-Santos R, Belo S, Vieira R, Mergulhão FJM, Gomes LC. Graphene-Based Composites for Biomedical Applications: Surface Modification for Enhanced Antimicrobial Activity and Biocompatibility. Biomolecules 2023; 13:1571. [PMID: 38002253 PMCID: PMC10669141 DOI: 10.3390/biom13111571] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
The application of graphene-based materials in medicine has led to significant technological breakthroughs. The remarkable properties of these carbon materials and their potential for functionalization with various molecules and compounds make them highly attractive for numerous medical applications. To enhance their functionality and applicability, extensive research has been conducted on surface modification of graphene (GN) and its derivatives, including modifications with antimicrobials, metals, polymers, and natural compounds. This review aims to discuss recent and relevant studies related to advancements in the formulation of graphene composites, addressing their antimicrobial and/or antibiofilm properties and evaluating their biocompatibility, with a primary focus on their biomedical applications. It was concluded that GN surface modification, particularly with compounds intrinsically active against bacteria (e.g., antimicrobial peptides, silver and copper nanomaterials, and chitosan), has resulted in biomaterials with improved antimicrobial performance. Furthermore, the association of GN materials with non-natural polymers provides composites with increased biocompatibility when interfaced with human tissues, although with slightly lower antimicrobial efficacy. However, it is crucial to highlight that while modified GN materials hold huge potential, their widespread use in the medical field is still undergoing research and development. Comprehensive studies on safety, long-term effects, and stability are essential before their adoption in real-world medical scenarios.
Collapse
Affiliation(s)
- Rita Teixeira-Santos
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Samuel Belo
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Rita Vieira
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Filipe J. M. Mergulhão
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Luciana C. Gomes
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| |
Collapse
|
8
|
Covaliu-Mierlă CI, Păunescu O, Iovu H. Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review. MEMBRANES 2023; 13:643. [PMID: 37505009 PMCID: PMC10385156 DOI: 10.3390/membranes13070643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/29/2023]
Abstract
The presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. The utilization of nanofiltration (NF) membranes has emerged as one of the most effective methods of heavy metal ion removal from wastewater due to their efficient operation, adaptable design, and affordability. NF membranes created from advanced materials are becoming increasingly popular due to their ability to depollute wastewater in a variety of circumstances. Tailoring the NF membrane's properties to efficiently remove heavy metal ions from wastewater, interfacial polymerization, and grafting techniques, along with the addition of nano-fillers, have proven to be the most effective modification methods. This paper presents a review of the modification processes and NF membrane performances for the removal of heavy metals from wastewater, as well as the application of these membranes for heavy metal ion wastewater treatment. Very high treatment efficiencies, such as 99.90%, have been achieved using membranes composed of polyvinyl amine (PVAM) and glutaraldehyde (GA) for Cr3+ removal from wastewater. However, nanofiltration membranes have certain drawbacks, such as fouling of the NF membrane. Repeated cleaning of the membrane influences its lifetime.
Collapse
Affiliation(s)
- Cristina Ileana Covaliu-Mierlă
- Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Oana Păunescu
- Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 132 Calea Grivitei, 010737 Bucharest, Romania
| |
Collapse
|
9
|
Kesner LA, Piskulich ZA, Cui Q, Rosenzweig Z. Untangling the Interactions between Anionic Polystyrene Nanoparticles and Lipid Membranes Using Laurdan Fluorescence Spectroscopy and Molecular Simulations. J Am Chem Soc 2023; 145:7962-7973. [PMID: 37011179 DOI: 10.1021/jacs.2c13403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Several classes of synthetic nanoparticles (NPs) induce rearrangements of cell membranes that can affect membrane function. This paper describes the investigation of the interactions between polystyrene nanoparticles and liposomes, which serve as model cell membranes, using a combination of laurdan fluorescence spectroscopy and coarse-grained molecular dynamics (MD) simulations. The relative intensities of the gel-like and fluid fluorescent peaks of laurdan, which is embedded in the liposome membranes, are quantified from the areas of deconvoluted lognormal laurdan fluorescence peaks. This provides significant advantages in understanding polymer-membrane interactions. Our study reveals that anionic polystyrene NPs, which are not cross-linked, induce significant membrane rearrangement compared to other cationic or anionic NPs. Coarse-grained MD simulations demonstrate that polymer chains from the anionic polystyrene NP penetrate the liposome membrane. The inner leaflet remains intact throughout this process, though both leaflets show a decrease in lipid packing that is indicative of significant local rearrangement of the liposome membrane. These results are attributed to the formation of a hybrid gel made up of a combination of polystyrene (PS) and lipids that forces water molecules away from laurdan. Our study concludes that a combination of negative surface charge to interact electrostatically with positive charges on the membrane, a hydrophobic core to provide a thermodynamic preference for membrane association, and the ability to extend non-cross linked polymer chains into the liposome membrane are necessary for NPs to cause a significant rearrangement in the liposomes.
Collapse
Affiliation(s)
- Laura A Kesner
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250, United States
| | - Zeke A Piskulich
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Qiang Cui
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Zeev Rosenzweig
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250, United States
| |
Collapse
|
10
|
Surface decoration with leucine tetrapeptide: An antibacterial strategy against Gram-negative bacteria. J Colloid Interface Sci 2023; 641:126-134. [PMID: 36931211 DOI: 10.1016/j.jcis.2023.03.038] [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: 10/08/2022] [Revised: 02/19/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Surface-associated microbe contamination by Gram-negative bacteria poses a serious problem in medical care. Cationic peptides or polymers are the main materials used for antibacterial surface coating, but the positive charge may lead to blood coagulation. Therefore, exploiting surface coating which is free of positive charge and is effective for Gram-negative bacteria inactivation is in urgent need. In this study, inspired by the affinity between lipopolysaccharides of Gram-negative bacteria and Toll-like receptors of immune cells, we develop a leucine-based tetrapeptide coating strategy for combating Gram-negative bacteria. The obtained surface has excellent bactericidal activity against Gram-negative bacteria like Pseudomonas aeruginosa and Escherichia coli. A 1 mm2 coated glass surface could kill > 9.9 × 104 CFU bacteria in 1 h and has nearly no damage to mammal cells. Moreover, this surface coating strategy could be applied on various surfaces like glass slices, glass capillary cavity and thermoplastic polyurethane slices. And the coated surface could largely mitigate the microbe contamination in an in vivo subcutaneous implantation. This work paves a new way for antibacterial surface-coating which is behaving no positive charge and is of great importance for biomedical devices.
Collapse
|
11
|
Moazami S, Kharaziha M, Emadi R, Dinari M. Multifunctional Bioinspired Bredigite-Modified Adhesive for Bone Fracture Healing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6499-6513. [PMID: 36700731 DOI: 10.1021/acsami.2c20038] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Despite recent advances in bone adhesives applied for full median sternotomy, the regeneration of bone defects has remained challenging since the healing process is hampered by poor adhesiveness, limited bioactivity, and lack of antibacterial functions. Bioinspired adhesives by marine organisms provide a novel concept to circumvent these problems. Herein, a dual cross-link strategy is employed in designing a multifaceted bioinspired adhesive consisting of a catechol amine-functionalized hyperbranched polymer (polydopamine-co-acrylate, PDA), bredigite (BR) nanoparticles, and Fe3+ ions. The hybrid adhesives exhibit strong adhesion to various substrates such as poly(methyl methacrylate), glass, bone, and skin tissues through synergy between irreversible covalent and reversible noncovalent cross-linking, depending on the BR content. Noticeably, the adhesion strength of hybrid adhesives containing 2 wt % BR nanoparticles to bone tissues is 2.3 ± 0.8 MPa, which is about 3 times higher than that of pure PDA adhesives. We also demonstrate that these hybrid adhesives not only are bioactive and accelerate in vitro bone-like apatite formation but also exhibit antibacterial properties against Staphylococcus aureus, depending on the BR concentration. Furthermore, the superior cellular responses in contact with hybrid adhesives, including improved human osteosarcoma MG63 cell spreading and osteogenic differentiation, are achieved owing to the appropriate ion release and flexibility of the cross-linked double-network adhesive. In summary, multifunctional hybrid PDA/BR adhesives with appreciable osteoconductive, mechanical, and antibacterial properties represent the potential applications for median sternotomy surgery as a bone tissue adhesive.
Collapse
Affiliation(s)
- Shima Moazami
- Department of Materials Engineering, Isfahan University of Technology, Isfahan84156-83111, Iran
| | - Mahshid Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan84156-83111, Iran
| | - Rahmatallah Emadi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan84156-83111, Iran
| | - Mohammad Dinari
- Department of Chemistry, Isfahan University of Technology, Isfahan84156-83111, Iran
| |
Collapse
|
12
|
Samavati Z, Samavati A, Goh PS, Ismail AF, Abdullah MS. A comprehensive review of recent advances in nanofiltration membranes for heavy metal removal from wastewater. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
|
13
|
Ou L, Chen H, Yuan B, Yang K. Membrane-Specific Binding of 4 nm Lipid Nanoparticles Mediated by an Entropy-Driven Interaction Mechanism. ACS NANO 2022; 16:18090-18100. [PMID: 36278503 DOI: 10.1021/acsnano.2c04774] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Lipid nanoparticles (LNPs) are a leading biomimetic drug delivery platform due to their distinctive advantages and highly tunable formulations. A mechanistic understanding of the interaction between LNPs and cell membranes is essential for developing the cell-targeted carriers for precision medicine. Here the interactions between sub 10 nm cationic LNPs (cLNPs; e.g., 4 nm in size) and varying model cell membranes are systematically investigated using molecular dynamics simulations. We find that the membrane-binding behavior of cLNPs is governed by a two-step mechanism that is initiated by direct contact followed by a more crucial lipid exchange (dissociation of cLNP's coating lipids and subsequent flip and intercalation into the membrane). Importantly, our simulations demonstrate that the membrane binding of cLNPs is an entropy-driven process, which thus enables cLNPs to differentiate between membranes having different lipid compositions (e.g., the outer and inner membranes of bacteria vs the red blood cell membranes). Accordingly, the possible strategies to drive the membrane-targeting behaviors of cLNPs, which mainly depend on the entropy change in the complicated entropy-enthalpy competition of the cLNP-membrane interaction process, are investigated. Our work unveils the molecular mechanism underlying the membrane selectivity of cLNPs and provides useful hints to develop cLNPs as membrane-targeting agents for precision medicine.
Collapse
Affiliation(s)
- Luping Ou
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou215006, Jiangsu, People's Republic of China
| | - Haibo Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou215006, Jiangsu, People's Republic of China
| | - Bing Yuan
- Songshan Lake Materials Laboratory, Dongguan523808, Guangdong, People's Republic of China
| | - Kai Yang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou215006, Jiangsu, People's Republic of China
| |
Collapse
|
14
|
Xue Y, Zhao Z, Zhao Y, Wang C, Shen S, Qiu Z, Cui R, Zhou S, Fang L, Chen Z, Zhu H, Zhu B. Influence of cationic groups on the antibacterial behavior of cationic nano-sized hyperbranched polymers to enhance bacteria-infected wound healing. NANOSCALE 2022; 14:12789-12803. [PMID: 36004750 DOI: 10.1039/d2nr02149h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With the continuous emergence of drug-resistant pathogens, new strategies with high antibacterial efficacy are urgently needed. Herein, five cationic nano-sized hyperbranched polymers (CNHBPs) with cationic functional groups have been constructed, and their antibacterial mechanism has been studied in detail. CNHBPs bearing secondary ammonium salt groups and long alkyl chains (S12-CNHBP) exhibited weak antibacterial and antibiofilm ability, while CNHBPs bearing quaternary ammonium salt groups and long alkyl chains (Q12-CNHBP) showed the highest antimicrobial and strongest antibiofilm activities. ζ potential and isothermal titration microcalorimetry (ITC) results suggest that the negatively charged surfaces of bacterial cells provided Q12-CNHBP with a higher intrinsic electrostatic driving force for bacterial killing than that with S12-CNHBP. Fluorescent tracing and morphological observations indicate that the bacterial genome might be another antibacterial target for S12-CNHBP in addition to the cell wall and membrane, which are mainly antibacterial targets for Q12-CNHBP, making it less likely to induce bacterial resistance. Surprisingly, Q12-CNHBP exhibited superior in vivo therapeutic efficacy in a mouse wound model of methicillin-resistant Staphylococcus aureus (MRSA) infection with low toxicity during treatment. These advantages and ease of preparation will undoubtedly distinguish Q12-CNHBP as a new class of suitable candidates to combat multidrug-resistant pathogen infections. This study opens up a new avenue for exploiting antibacterial biomaterials to treat infections caused by drug-resistant bacteria.
Collapse
Affiliation(s)
- Yunyun Xue
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Zihao Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Yu Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Chuyao Wang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Shuyang Shen
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Zelin Qiu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Ronglu Cui
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Shien Zhou
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Lifeng Fang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Baoku Zhu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| |
Collapse
|
15
|
Jones Z, Niemuth NJ, Zhang Y, Protter CR, Kinsley PC, Klaper RD, Hamers RJ. Use of Magnetic Modulation of Nitrogen-Vacancy Center Fluorescence in Nanodiamonds for Quantitative Analysis of Nanoparticles in Organisms. ACS MEASUREMENT SCIENCE AU 2022; 2:351-360. [PMID: 35996538 PMCID: PMC9390786 DOI: 10.1021/acsmeasuresciau.2c00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The fluorescence intensity emitted by nitrogen-vacancy (NV) centers in diamond nanoparticles can be readily modulated by the application of a magnetic field using a small electromagnet. By acquiring interleaved images acquired in the presence and absence of the magnetic field and performing digital subtraction, the fluorescence intensity of the NV nanodiamond can be isolated from scattering and autofluorescence even when these backgrounds are changing monotonically during the experiments. This approach has the potential to enable the robust identification of nanodiamonds in organisms and other complex environments. Yet, the practical application of magnetic modulation imaging to realistic systems requires the use of quantitative analysis methods based on signal-to-noise considerations. Here, we describe the use of magnetic modulation to analyze the uptake of diamond nanoparticles from an aqueous environment into Caenorhabditis elegans, used here as a model system for identification and quantification of nanodiamonds in complex matrices. Based on the observed signal-to-noise ratio of sets of digitally subtracted images, we show that nanodiamonds can be identified on an individual pixel basis with a >99.95% confidence. To determine whether surface functionalization of the nanodiamond significantly impacted uptake, we used this approach to analyze the presence of nanodiamonds in C. elegans that had been exposed to these functionalized nanodiamonds in the water column, with uptake likely occurring by ingestion. In each case, the images show a significant nanoparticle uptake. However, differences in uptake between the three ligands were not outside of the experimental error, indicating that additional factors beyond the surface charge are important factors controlling uptake. Analysis of the number of pixels above the threshold in individual C. elegans organisms revealed distributions that deviate significantly from a Poisson distribution, suggesting that uptake of nanoparticles may not be a statistically independent event. The results presented here demonstrate that magnetic modulation combined with quantitative analysis of the resulting images can be used to robustly characterize nanoparticle uptake into organisms.
Collapse
Affiliation(s)
- Zachary
R. Jones
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Nicholas J. Niemuth
- School
of Freshwater Sciences, University of Wisconsin−Milwaukee, 600 E. Greenfield Avenue, Milwaukee, Wisconsin 53204, United States
| | - Yongqian Zhang
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Connor R. Protter
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Paige C. Kinsley
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Rebecca D. Klaper
- School
of Freshwater Sciences, University of Wisconsin−Milwaukee, 600 E. Greenfield Avenue, Milwaukee, Wisconsin 53204, United States
| | - Robert J. Hamers
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| |
Collapse
|
16
|
Zhao X, Tang H, Jiang X. Deploying Gold Nanomaterials in Combating Multi-Drug-Resistant Bacteria. ACS NANO 2022; 16:10066-10087. [PMID: 35776694 DOI: 10.1021/acsnano.2c02269] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance has become a serious threat to human health due to the overuse of antibiotics. Different antibiotics are being developed to treat resistant bacteria, but the development cycle of antibiotics is hard to keep up with the high incidence of antibiotic resistance. Recent advances in antimicrobial nanomaterials have made nanotechnology a powerful solution to this dilemma. Among these nanomaterials, gold nanomaterials have excellent antibacterial efficacy and biosafety, making them alternatives to antibiotics. This review presents strategies that use gold nanomaterials to combat drug-resistant bacteria. We focus on the influence of physicochemical factors such as surface chemistry, size, and shape of gold nanomaterials on their antimicrobial properties and describe the antimicrobial applications of gold nanomaterials in medical devices. Finally, the existing challenges and future directions are discussed.
Collapse
Affiliation(s)
- Xiaohui Zhao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
| | - Hao Tang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
| | - Xingyu Jiang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
| |
Collapse
|
17
|
Xue Y, Qiu Z, Zhao Z, Wang C, Cui R, Shen S, Zhao Y, Zhou S, Fang L, Chen Z, Zhu H, Zhu B. Secondary Ammonium-Based Hyperbranched Poly(amidoamine) with Excellent Membrane-Active Property for Multidrug-Resistant Bacterial Infection. ACS APPLIED BIO MATERIALS 2022; 5:3384-3395. [PMID: 35765122 DOI: 10.1021/acsabm.2c00356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With the rapid emergence of microbial infections induced by "superbugs", public health and the global economy are threatened by the lack of effective and biocompatible antibacterial agents. Herein, we systematically design a series of secondary ammonium-based hyperbranched poly(amidoamine) (SAHBP) with different alkyl chain lengths for probing high-efficacy antibacterial agents. SAHBP modified with alkyl tails at the hyperbranched core could efficiently kill Escherichia coli and Staphylococcus aureus, two types of clinically important bacteria worldwide. The best SAHBP with 12-carbon-long alkyl tails (SAHBP-12) also showed high activity against problematic multidrug-resistant bacteria, including Pseudomonas aeruginosa and methicillin-resistant S. aureus (MRSA). Based on ζ potential, isothermal titration microcalorimetry (ITC), and membrane integrity assays, it is found that SAHBP-12 could attach to the cell membrane via electrostatic adsorption and hydrophobic interactions, following which the integrity of the bacterial cell wall and the cell membrane is disrupted, resulting in severe cell membrane damage and the leakage of cytoplasmic contents, finally causing bacterial cell death. Impressively, benefiting from excellent membrane-active property, SAHBP-12 exhibited robust therapeutic efficacy in MRSA-infected mice wounds. Moreover, SAHBP-12 also showed excellent biosafety in vitro and in vivo, which undoubtedly distinguished it as a potent weapon in combating the growing threat of problematic multidrug-resistant bacterial infections.
Collapse
Affiliation(s)
- Yunyun Xue
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zelin Qiu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zihao Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chuyao Wang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ronglu Cui
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shuyang Shen
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yu Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shien Zhou
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lifeng Fang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Baoku Zhu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
18
|
Wang C, Xue Y, Tian H, Zhao Z, Shen S, Fang L, Cui R, Han J, Zhu B. Tri‐functional unit groups contained polyurethane composites with excellent antibacterial property and biocompatibility. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chuyao Wang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Yunyun Xue
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Hua Tian
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Zihao Zhao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Shuyang Shen
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Lifeng Fang
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Ronglu Cui
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Jun Han
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Baoku Zhu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| |
Collapse
|
19
|
Antibiotic-loaded lipid-based nanocarrier: a promising strategy to overcome bacterial infection. Int J Pharm 2022; 621:121782. [PMID: 35489605 DOI: 10.1016/j.ijpharm.2022.121782] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/11/2022] [Accepted: 04/25/2022] [Indexed: 12/18/2022]
Abstract
According to the World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC), bacterial infections are one of the greatest threats to global health, food production, and life expectancy. In this sense, the development of innovative formulations aiming at greater therapeutic efficacy, safety, and shorter treatment duration compared to conventional products is urgently needed. Lipid-based nanocarriers (LBNs) have demonstrated the potential to enhance the effectiveness of available antibiotics. Among them, liposome, nanoemulsion, solid lipid nanoparticle (SLN), and nanostructured lipid carrier (NLC) are the most promising due to their solid technical background for laboratory and industrial production. This review describes recent advances in developing antibiotic-loaded LBNs against susceptible and resistant bacterial strains and biofilm. LBNs revealed to be a promising alternative to deliver antibiotics due to their superior characteristics compared to conventional preparations, including their modified drug release, improved bioavailability, drug protection against chemical or enzymatic degradation, greater drug loading capacity, and biocompatibility. Antibiotic-loaded LBNs can improve current clinical drug therapy, bring innovative products and rescue discarded antibiotics. Thus, antibiotic-loaded LBNs have potential to open a window of opportunities to continue saving millions of lives and prevent the devastating impact of bacterial infection.
Collapse
|
20
|
Graham AJ, Gibbs SL, Saez Cabezas CA, Wang Y, Green AM, Milliron DJ, Keitz BK. In Situ
Optical Quantification of Extracellular Electron Transfer Using Plasmonic Metal Oxide Nanocrystals**. ChemElectroChem 2022. [DOI: 10.1002/celc.202101423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Austin J. Graham
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
- Center for the Dynamics and Control of Materials University of Texas at Austin TX, 78712 Austin United States
| | - Stephen L. Gibbs
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
| | - Camila A. Saez Cabezas
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
- Center for the Dynamics and Control of Materials University of Texas at Austin TX, 78712 Austin United States
| | - Yongdan Wang
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
| | - Allison M. Green
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
- Center for the Dynamics and Control of Materials University of Texas at Austin TX, 78712 Austin United States
| | - Delia J. Milliron
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
- Center for the Dynamics and Control of Materials University of Texas at Austin TX, 78712 Austin United States
| | - Benjamin K. Keitz
- McKetta Department of Chemical Engineering University of Texas at Austin TX, 78712 Austin United States
- Center for the Dynamics and Control of Materials University of Texas at Austin TX, 78712 Austin United States
| |
Collapse
|
21
|
Cestellos-Blanco S, Kim JM, Watanabe NG, Chan RR, Yang P. Molecular insights and future frontiers in cell photosensitization for solar-driven CO 2 conversion. iScience 2021; 24:102952. [PMID: 34458701 PMCID: PMC8379512 DOI: 10.1016/j.isci.2021.102952] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The conversion of CO2 to value-added products powered with solar energy is an ideal solution to establishing a closed carbon cycle. Combining microorganisms with light-harvesting nanomaterials into photosynthetic biohybrid systems (PBSs) presents an approach to reaching this solution. Metabolic pathways precisely evolved for CO2 fixation selectively and reliably generate products. Nanomaterials harvest solar light and biocompatibly associate with microorganisms owing to similar lengths scales. Although this is a nascent field, a variety of approaches have been implemented encompassing different microorganisms and nanomaterials. To advance the field in an impactful manner, it is paramount to understand the molecular underpinnings of PBSs. In this perspective, we highlight studies inspecting charge uptake pathways and singularities in photosensitized cells. We discuss further analyses to more completely elucidate these constructs, and we focus on criteria to be met for designing photosensitizing nanomaterials. As a result, we advocate for the pairing of microorganisms with naturally occurring and highly biocompatible mineral-based semiconductor nanomaterials.
Collapse
Affiliation(s)
| | - Ji Min Kim
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | | | | | - Peidong Yang
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Department of Chemistry, University of California, Berkeley, CA, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Kavli Energy NanoScience Institute at the University of California, Berkeley, CA, USA
| |
Collapse
|
22
|
Gong D, Zhang A, Luo H, Shi Y, Zhang Y, Tan L. Polyhexamethylene biguanide hydrochloride anchored polymeric elastic fibers with robust antibacterial performance. J Appl Polym Sci 2021. [DOI: 10.1002/app.51633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Da‐Kai Gong
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Ao Zhang
- General Department Sichuan Institute of Aerospace System Engineering Chengdu China
| | - Hao Luo
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Yi‐Dong Shi
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Yong Zhang
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Lin Tan
- College of Biomass Science and Engineering Sichuan University Chengdu China
| |
Collapse
|
23
|
Qiu P, Yuan P, Deng Z, Su Z, Bai Y, He J. One-pot facile synthesis of enzyme-encapsulated Zn/Co-infinite coordination polymer nanospheres as a biocatalytic cascade platform for colorimetric monitoring of bacteria viability. Mikrochim Acta 2021; 188:322. [PMID: 34487260 DOI: 10.1007/s00604-021-04981-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/09/2021] [Indexed: 12/27/2022]
Abstract
A rapid method for colorimetric monitoring of bacterial viability is described. The colorimetric method was carried out based on glucose oxidase-encapsulated Zn/Co-infinite coordination polymer (Zn/Co-ICP@GOx), which was prepared in aqueous solution free of toxic organic solvents at room temperature. The Zn/Co-ICP@GOx was confirmed to be a robust sphere structure with an average diameter of 147.53 ± 20.40 nm. It integrated the catalytic activity of natural enzyme (GOx) and mimetic peroxidase (Co (П)) all in one, efficiently acting as a biocatalytic cascade platform for glucose catalytic reaction. Exhibiting good multi-enzyme catalytic activity, stability, and selectivity, Zn/Co-ICP@GOx can be used for colorimetric glucose detection. The linear range was 0.01-1.0 mmol/L, and the limit of detection (LOD) was 0.005 mmol/L. As the glucose metabolism is a common expression of bacteria, the remaining glucose can indirectly represent the bacterial viability. Hence, a Zn/Co-ICP@GOx-based colorimetric method was developed for monitoring of bacterial viability. The color was intuitively observed with the naked eye, and the bacterial viability was accurately quantified by measurement of the absorbance at 510 nm. The method was applied to determination of bacterial viability in water and milk samples with recoveries of 99.0-103% and RSD of 0.43-7.5%. The method was rapid (less than 40 min) and applicable to different bacterial species irrespective of Gram-positive and Gram-negative bacteria, providing a universal and promising strategy for real-time monitoring of bacterial viability.
Collapse
Affiliation(s)
- Peipei Qiu
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, 510310, China
| | - Ping Yuan
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, 510310, China
| | - Zhichen Deng
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, 510310, China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yan Bai
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, 510310, China.
| | - Jincan He
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, 510310, China.
| |
Collapse
|
24
|
Razza N, Lavino AD, Fadda G, Lairez D, Impagnatiello A, Marchisio D, Sangermano M, Rizza G. Nanoprobes to investigate nonspecific interactions in lipid bilayers: from defect-mediated adhesion to membrane disruption. NANOSCALE ADVANCES 2021; 3:4979-4989. [PMID: 36132337 PMCID: PMC9418973 DOI: 10.1039/d1na00360g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/08/2021] [Indexed: 06/15/2023]
Abstract
When a lipid membrane approaches a material/nanomaterial, nonspecific adhesion may occur. The interactions responsible for nonspecific adhesion can either preserve the membrane integrity or lead to its disruption. Despite the importance of the phenomenon, there is still a lack of clear understanding of how and why nonspecific adhesion may originate different resulting scenarios and how these interaction scenarios can be investigated. This work aims at bridging this gap by investigating the role of the interplay between cationic electrostatic and hydrophobic interactions in modulating the membrane stability during nonspecific adhesion phenomena. Here, the stability of the membrane has been studied employing anisotropic nanoprobes in zwitterionic lipid membranes with the support of coarse-grained molecular dynamics simulations to interpret the experimental observations. Lipid membrane electrical measurements and nanoscale visualization in combination with molecular dynamics simulations revealed the phenomena driving nonspecific adhesion. Any interaction with the lipidic bilayer is defect-mediated involving cationic electrostatically driven lipid extraction and hydrophobically-driven chain protrusion, whose interplay determines the existence of a thermodynamic optimum for the membrane structural integrity. These findings unlock unexplored routes to exploit nonspecific adhesion in lipid membranes. The proposed platform can act as a straightforward probing tool to locally investigate interactions between synthetic materials and lipid membranes for the design of antibacterials, antivirals, and scaffolds for tissue engineering.
Collapse
Affiliation(s)
- Nicolò Razza
- Department of Applied Science and Technology, Politecnico di Torino Torino Italy
| | - Alessio D Lavino
- Department of Applied Science and Technology, Politecnico di Torino Torino Italy
| | - Giulia Fadda
- CSPAT UMR 7244, Université Sorbonne Paris Nord 74 rue Marcel Cachin 93017 Bobigny France
- Laboratoire Léon Brillouin, CNRS, CEA, Université Paris-Saclay 91191 Gif-sur-Yvette Cedex France
| | - Didier Lairez
- Laboratoire Léon Brillouin, CNRS, CEA, Université Paris-Saclay 91191 Gif-sur-Yvette Cedex France
- Laboratoire des Solides Irradiés (LSI), Institut Polytechnique de Paris, CEA/DRF/IRAMIS, CNRS 91128 Palaiseau Cedex France
| | - Andrea Impagnatiello
- Laboratoire des Solides Irradiés (LSI), Institut Polytechnique de Paris, CEA/DRF/IRAMIS, CNRS 91128 Palaiseau Cedex France
| | - Daniele Marchisio
- Department of Applied Science and Technology, Politecnico di Torino Torino Italy
| | - Marco Sangermano
- Department of Applied Science and Technology, Politecnico di Torino Torino Italy
| | - Giancarlo Rizza
- Laboratoire des Solides Irradiés (LSI), Institut Polytechnique de Paris, CEA/DRF/IRAMIS, CNRS 91128 Palaiseau Cedex France
| |
Collapse
|
25
|
Liu K, Zhang F, Wei Y, Hu Q, Luo Q, Chen C, Wang J, Yang L, Luo R, Wang Y. Dressing Blood-Contacting Materials by a Stable Hydrogel Coating with Embedded Antimicrobial Peptides for Robust Antibacterial and Antithrombus Properties. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38947-38958. [PMID: 34433245 DOI: 10.1021/acsami.1c05167] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Although dressing blood-contacting devices with robust and synergistic antibacterial and antithrombus properties has been explored for several decades, it still remains a great challenge. In order to endow materials with remarkable antibacterial and antithrombus abilities, a stable and antifouling hydrogel coating was developed via surface-initiated polymerization of sulfobetaine methacrylate and acrylic acid on a polymeric substrate followed by embedding of antimicrobial peptides (AMPs), including WR (sequence: WRWRWR-NH2) or Bac2A (sequence: RLARIVVIRVAR-NH2) AMPs. The chemical composition of the AMP-embedded hydrogel coating was determined through XPS, zeta potential, and SEM-EDS measurements. The AMP-embedded antifouling hydrogel coating showed not only good hemocompatibility but also excellent bactericidal and antiadhesion properties against Gram-positive and Gram-negative bacteria. Moreover, the hydrogel coating could protect the AMPs with long-term bioactivity and cover the positive charge of the dotted distributed AMPs, which in turn well retained the hemocompatibility and antifouling capacity of the bulk hydrogels. Furthermore, the microbiological results of animal experiments also verified the anti-infection performance in vivo. Histological and immunological data further indicated that the hydrogel coating had an excellent anti-inflammatory function. Therefore, the present study might provide a promising approach to prevent bacterial infections and thrombosis in clinical applications of blood-contacting devices and related implants.
Collapse
Affiliation(s)
- Kunpeng Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Fanjun Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yuan Wei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Qinsheng Hu
- West China Hospital, Sichuan University, Chengdu 610064, China
| | - Qingfeng Luo
- Center for Medical Device Evaluation of NMPA, Beijing 100081, China
| | - Chong Chen
- Laboratory of Biomechanical Engineering, Department of Applied Mechanics, College of Architecture & Environment, Sichuan University, Chengdu 610064, China
| | - Jingyu Wang
- First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| |
Collapse
|
26
|
Kang Y, Liu J, Jiang Y, Yin S, Huang Z, Zhang Y, Wu J, Chen L, Shao L. Understanding the interactions between inorganic-based nanomaterials and biological membranes. Adv Drug Deliv Rev 2021; 175:113820. [PMID: 34087327 DOI: 10.1016/j.addr.2021.05.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/21/2021] [Accepted: 05/29/2021] [Indexed: 12/12/2022]
Abstract
The interactions between inorganic-based nanomaterials (NMs) and biological membranes are among the most important phenomena for developing NM-based therapeutics and resolving nanotoxicology. Herein, we introduce the structural and functional effects of inorganic-based NMs on biological membranes, mainly the plasma membrane and the endomembrane system, with an emphasis on the interface, which involves highly complex networks between NMs and biomolecules (such as membrane proteins and lipids). Significant efforts have been devoted to categorizing and analyzing the interaction mechanisms in terms of the physicochemical characteristics and biological effects of NMs, which can directly or indirectly influence the effects of NMs on membranes. Importantly, we summarize that the biological membranes act as platforms and thereby mediate NMs-immune system contacts. In this overview, the existing challenges and potential applications in the areas are addressed. A strong understanding of the discussed concepts will promote therapeutic NM designs for drug delivery systems by leveraging the NMs-membrane interactions and their functions.
Collapse
Affiliation(s)
- Yiyuan Kang
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China
| | - Jia Liu
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yanping Jiang
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Suhan Yin
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhendong Huang
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yanli Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Junrong Wu
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Longquan Shao
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China.
| |
Collapse
|
27
|
Zhang H, Mou J, Ding J, Qin W. Magneto-controlled potentiometric assay for E. coli based on cleavage of peptide by outer-membrane protease T. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
28
|
Zhang Y, Dahal U, Feng ZV, Rosenzweig Z, Cui Q, Hamers RJ. Influence of Surface Ligand Molecular Structure on Phospholipid Membrane Disruption by Cationic Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7600-7610. [PMID: 34115507 DOI: 10.1021/acs.langmuir.1c01146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cationic nanoparticles are known to interact with biological membranes and often cause serious membrane damage. Therefore, it is important to understand the molecular mechanism for such interactions and the factors that impact the degree of membrane damage. Previously, we have demonstrated that spatial distribution of molecular charge at cationic nanoparticle surfaces plays an important role in determining the cellular uptake and membrane damage of these nanoparticles. In this work, using diamond nanoparticles (DNPs) functionalized with five different amine-based surface ligands and small phospholipid unilamellar vesicles (SUVs), we further investigate how chemical features and conformational flexibility of surface ligands impact nanoparticle/membrane interactions. 31P-NMR T2 relaxation measurements quantify the mobility changes in lipid dynamics upon exposing the SUVs to functional DNPs, and coarse-grained molecular dynamics simulations further elucidate molecular details for the different modes of DNP-SUV interactions depending on the surface ligands. Collectively, our results show that the length of the hydrophobic segment and conformational flexibility of surface ligands are two key factors that dictate the degree of membrane damage by the DNP, while the amount of surface charge alone is not predictive of the strength of interaction.
Collapse
Affiliation(s)
- Yongqian Zhang
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Udaya Dahal
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Z Vivian Feng
- Chemistry Department, Augsburg University, Minneapolis, Minnesota 55454, United States
| | - Zeev Rosenzweig
- Department of Chemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250, United States
| | - Qiang Cui
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Robert J Hamers
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| |
Collapse
|
29
|
Morillas-Becerril L, Franco-Ulloa S, Fortunati I, Marotta R, Sun X, Zanoni G, De Vivo M, Mancin F. Specific and nondisruptive interaction of guanidium-functionalized gold nanoparticles with neutral phospholipid bilayers. Commun Chem 2021; 4:93. [PMID: 36697571 PMCID: PMC9814519 DOI: 10.1038/s42004-021-00526-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 05/05/2021] [Indexed: 01/28/2023] Open
Abstract
Understanding and controlling the interaction between nanoparticles and biological entities is fundamental to the development of nanomedicine applications. In particular, the possibility to realize nanoparticles capable of directly targeting neutral lipid membranes would be advantageous to numerous applications aiming at delivering nanoparticles and their cargos into cells and biological vesicles. Here, we use experimental and computational methodologies to analyze the interaction between liposomes and gold nanoparticles (AuNPs) featuring cationic headgroups in their protecting monolayer. We find that in contrast to nanoparticles decorated with other positively charged headgroups, guanidinium-coated AuNPs can bind to neutral phosphatidylcholine liposomes, inducing nondisruptive membrane permeabilization. Atomistic molecular simulations reveal that this ability is due to the multivalent H-bonding interaction between the phosphate residues of the liposome's phospholipids and the guanidinium groups. Our results demonstrate that the peculiar properties of arginine magic, an effect responsible for the membranotropic properties of some naturally occurring peptides, are also displayed by guanidinium-bearing functionalized AuNPs.
Collapse
Affiliation(s)
- Lucía Morillas-Becerril
- grid.5608.b0000 0004 1757 3470Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Sebastian Franco-Ulloa
- grid.25786.3e0000 0004 1764 2907Laboratory of Molecular Modeling and Drug Discovery, Istituto Italiano di Tecnologia, Via Morego 30, Genoa, Italy ,Present Address: Expert Analytics. Møllergata 8, Oslo, Norway
| | - Ilaria Fortunati
- grid.5608.b0000 0004 1757 3470Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Roberto Marotta
- grid.25786.3e0000 0004 1764 2907Electron Microscopy Facility (EMF), Istituto Italiano di Tecnologia, Via Morego 30, Genoa, Italy
| | - Xiaohuan Sun
- grid.268415.cSchool of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu People’s Republic of China
| | - Giordano Zanoni
- grid.5608.b0000 0004 1757 3470Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Marco De Vivo
- grid.25786.3e0000 0004 1764 2907Laboratory of Molecular Modeling and Drug Discovery, Istituto Italiano di Tecnologia, Via Morego 30, Genoa, Italy
| | - Fabrizio Mancin
- grid.5608.b0000 0004 1757 3470Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| |
Collapse
|
30
|
Engineering heterogeneity of precision nanoparticles for biomedical delivery and therapy. VIEW 2021. [DOI: 10.1002/viw.20200067] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
31
|
Chew AK, Dallin BC, Van Lehn RC. The Interplay of Ligand Properties and Core Size Dictates the Hydrophobicity of Monolayer-Protected Gold Nanoparticles. ACS NANO 2021; 15:4534-4545. [PMID: 33621066 DOI: 10.1021/acsnano.0c08623] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The hydrophobicity of monolayer-protected gold nanoparticles is a crucial design parameter that influences self-assembly, preferential binding to proteins and membranes, and other nano-bio interactions. Predicting the effects of monolayer components on nanoparticle hydrophobicity is challenging due to the nonadditive, cooperative perturbations to interfacial water structure that dictate hydrophobicity at the nanoscale. In this work, we quantify nanoparticle hydrophobicity by using atomistic molecular dynamics simulations to calculate local hydration free energies at the nanoparticle-water interface. The simulations reveal that the hydrophobicity of large gold nanoparticles is determined primarily by ligand end group chemistry, as expected. However, for small gold nanoparticles, long alkanethiol ligands interact to form anisotropic bundles that lead to substantial spatial variations in hydrophobicity even for homogeneous monolayer compositions. We further show that nanoparticle hydrophobicity is modulated by changing the ligand structure, ligand chemistry, and gold core size, emphasizing that single-ligand properties alone are insufficient to characterize hydrophobicity. Finally, we illustrate that hydration free energy measurements correlate with the preferential binding of propane as a representative hydrophobic probe molecule. Together, these results show that both physical and chemical properties influence the hydrophobicity of small nanoparticles and must be considered together when predicting gold nanoparticle interactions with biomolecules.
Collapse
Affiliation(s)
- Alex K Chew
- Department of Chemical and Biological Engineering, University of Wisconsin - Madison, Madison, Wisconsin 53706, United States
| | - Bradley C Dallin
- Department of Chemical and Biological Engineering, University of Wisconsin - Madison, Madison, Wisconsin 53706, United States
| | - Reid C Van Lehn
- Department of Chemical and Biological Engineering, University of Wisconsin - Madison, Madison, Wisconsin 53706, United States
| |
Collapse
|
32
|
Calatayud DG, Jardiel T, Bernardo MS, Mirabello V, Ge H, Arrowsmith RL, Cortezon-Tamarit F, Alcaraz L, Isasi J, Arévalo P, Caballero AC, Pascu SI, Peiteado M. Hybrid Hierarchical Heterostructures of Nanoceramic Phosphors as Imaging Agents for Multiplexing and Living Cancer Cells Translocation. ACS APPLIED BIO MATERIALS 2021; 4:4105-4118. [PMID: 34056563 PMCID: PMC8155200 DOI: 10.1021/acsabm.0c01417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 02/19/2021] [Indexed: 11/30/2022]
Abstract
![]()
Existing fluorescent
labels used in life sciences are based on
organic compounds with limited lifetime or on quantum dots which are
either expensive or toxic and have low kinetic stability in biological
environments. To address these challenges, luminescent nanomaterials
have been conceived as hierarchical, core–shell structures
with spherical morphology and highly controlled dimensions. These
tailor-made nanophosphors incorporate Ln:YVO4 nanoparticles
(Ln = Eu(III) and Er(III)) as 50 nm cores and display intense and
narrow emission maxima centered at ∼565 nm. These cores can
be encapsulated in silica shells with highly controlled dimensions
as well as functionalized with chitosan or PEG5000 to reduce nonspecific
interactions with biomolecules in living cells. Confocal fluorescence
microscopy in living prostate cancer cells confirmed the potential
of these platforms to overcome the disadvantages of commercial fluorophores
and their feasibility as labels for multiplexing, biosensing, and
imaging in life science assays.
Collapse
Affiliation(s)
- David G Calatayud
- Department of Electroceramics, Instituto de Ceramica y Vidrio-CSIC, Kelsen 5, Campus de Cantoblanco, Madrid 28049, Spain
| | - Teresa Jardiel
- Department of Electroceramics, Instituto de Ceramica y Vidrio-CSIC, Kelsen 5, Campus de Cantoblanco, Madrid 28049, Spain
| | - Mara S Bernardo
- Department of Electroceramics, Instituto de Ceramica y Vidrio-CSIC, Kelsen 5, Campus de Cantoblanco, Madrid 28049, Spain
| | - Vincenzo Mirabello
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Haobo Ge
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Rory L Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | | | - Lorena Alcaraz
- Department of Inorganic Chemistry I, Universidad Complutense de Madrid, Madrid28040, Spain
| | - Josefa Isasi
- Department of Inorganic Chemistry I, Universidad Complutense de Madrid, Madrid28040, Spain
| | - Pablo Arévalo
- Department of Inorganic Chemistry I, Universidad Complutense de Madrid, Madrid28040, Spain
| | - Amador C Caballero
- Department of Electroceramics, Instituto de Ceramica y Vidrio-CSIC, Kelsen 5, Campus de Cantoblanco, Madrid 28049, Spain
| | - Sofia I Pascu
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Marco Peiteado
- Department of Electroceramics, Instituto de Ceramica y Vidrio-CSIC, Kelsen 5, Campus de Cantoblanco, Madrid 28049, Spain
| |
Collapse
|
33
|
Asgarirad H, Ebrahimnejad P, Mahjoub MA, Jalalian M, Morad H, Ataee R, Hosseini SS, Farmoudeh A. A promising technology for wound healing; in-vitro and in-vivo evaluation of chitosan nano-biocomposite films containing gentamicin. J Microencapsul 2021; 38:100-107. [PMID: 33245001 DOI: 10.1080/02652048.2020.1851789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 11/11/2020] [Indexed: 12/16/2022]
Abstract
Aim: This paper aims to study in-vitro and in-vivo evaluation of chitosan (CHI) biocomposite of gentamicin nanoparticles (GNPs) for wound healing. Methods: In this study, CHI nanoparticles (NPs) were prepared using the ionic gelation technique. GNP biocomposites were examined on the excision wound model in Wistar rats to determine the in-vivo efficiency. Results: The diameter and zeta potential of NPs were between 151-212.9 nm and 37.2 - 51.1 mV, respectively. The entrapment efficiency was in an acceptable range of 36.6-42.7% w/w. The release test information was fitted to mathematical models (Zero, First order, Higuchi, and Korsmeyer-Peppas), and according to calculations, the kinetics of drug release followed the Korsmeyer-Peppas model. A comparison of thermograms revealed that the drug was present in the formulation in a non-crystalline form. Conclusion: Histological studies of the wound showed that the rate of skin tissue repair was higher in the GNP biocomposite treatment group than in the others.
Collapse
Affiliation(s)
- Hossein Asgarirad
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Pedram Ebrahimnejad
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ali Mahjoub
- Department of Pharmaceutics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Jalalian
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamed Morad
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ramin Ataee
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyyedeh Saba Hosseini
- Pharmaceutical Sciences Research Centre, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Ali Farmoudeh
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
34
|
Yehuda N, Turkulets Y, Shalish I, Kushmaro A, Malis Arad S. Red Microalgal Sulfated Polysaccharide-Cu 2O Complexes: Characterization and Bioactivity. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7070-7079. [PMID: 33544596 DOI: 10.1021/acsami.0c17919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The anion-exchange capacity of the cell-wall sulfated polysaccharide of the red microalga Porphyridium sp. can be exploited for the complexation of metal ions (e.g., Cu, Zn, Ag) to produce novel materials with new bioactivities. In this study, we investigated this algal polysaccharide as a platform for the incorporation of copper as Cu2O. Chemical and rheological characterization of the Cu2O-polysaccharide complex showed that the copper is covalently bound to the polysaccharide and that the complex exhibits higher viscosity and conductivity than the native polysaccharide. Examination of the complex's inhibitory activity against the bacteria Acinetobacter baumannii, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, and Bacillus subtilis and the fungus Candida albicans revealed a relatively high antimicrobial activity, especially against C. albicans (92% growth inhibition) as compared to the polysaccharide and to Cu2O alone. The antibiofilm activity was also found against P. aeruginosa PA14 and C. albicans biofilms. An atomic force microscopy examination of the surface morphology of the complex revealed needle-like structures (spikes), approximately 10 nm thick, protruding from the complex surface to a maximum height of 1000 nm, at a density of about 5000/μm2, which were not detected in the native polysaccharide. It seems that the spikes on the surface of the Cu2O-polysaccharide complex are responsible for the antimicrobial activities of the complex, that is, for disruption of microbial membrane permeability, leading to cell death. The study thus indicates that the superior qualities of the novel material formed by complexion of Cu2O to the polysaccharide should be studied further for various biotechnological applications.
Collapse
Affiliation(s)
- Nofar Yehuda
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Yury Turkulets
- Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ilan Shalish
- Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ariel Kushmaro
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- The Ilse Katz Center for Meso and Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Shoshana Malis Arad
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| |
Collapse
|
35
|
Zheng H, Jiang J, Xu S, Liu W, Xie Q, Cai X, Zhang J, Liu S, Li R. Nanoparticle-induced ferroptosis: detection methods, mechanisms and applications. NANOSCALE 2021; 13:2266-2285. [PMID: 33480938 DOI: 10.1039/d0nr08478f] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although ferroptosis is an iron-dependent cell death mechanism involved in the development of some severe diseases (e.g., Parkinsonian syndrome, stroke and tumours), the combination of nanotechnology with ferroptosis for the treatment of these diseases has attracted substantial research interest. However, it is challenging to differentiate nanoparticle-induced ferroptosis from other types of cell deaths (e.g., apoptosis, pyroptosis, and necrosis), elucidate the detailed mechanisms and identify the key property of nanoparticles responsible for ferroptotic cell deaths. Therefore, a summary of these aspects from current research on nano-ferroptosis is important and timely. In this review, we endeavour to summarize some convincing techniques that can be employed to specifically examine ferroptotic cell deaths. Then, we discuss the molecular initiating events of nanosized ferroptosis inducers and the cascade signals in cells, and therefore elaborate the ferroptosis mechanisms. Besides, the key physicochemical properties of nano-inducers are also discussed to acquire a fundamental understanding of nano-structure-activity relationships (nano-SARs) involved in ferroptosis, which may facilitate the design of nanomaterials to deliberately tune ferroptosis. Finally, future perspectives on the fundamental understanding of nanoparticle-induced ferroptosis and its applications are provided.
Collapse
Affiliation(s)
- Huizhen Zheng
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Jun Jiang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Shujuan Xu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China
| | - Qianqian Xie
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Xiaoming Cai
- School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Jie Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, Shandong, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| |
Collapse
|
36
|
Li X, Shao Y, Lv S, Tian J, Zheng D, Song J, Song F. Au@mSiO 2 core-shell nanoparticles loaded with fluorescent dyes: synthesis and application for imaging performance. Dalton Trans 2021; 50:5624-5631. [PMID: 33908961 DOI: 10.1039/d1dt00253h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Here, Au@mSiO2 core-shell nanoparticles were easily synthesized by a one-pot method. Positively charged alkyl chains with different lengths were modified on the surface of the particles. Thus composite nanoparticles with different potentials and hydrophilic interface properties were prepared. Based on the charge properties of the shell surface, the process of loading dyes was simplified by the strong electrostatic adsorption between the particle surface and the heterogeneous negatively charged dyes. The fluorescence intensity and fluorescence lifetime of the loaded fluorescent dyes showed that the dyes could not produce effective tunneling in the mesoporous materials, which was limited to the surface of the particles, which is beneficial for the subsequent research on the loading or release of nanoparticles. After loading, the nanoparticles still exhibit a high fluorescence intensity, enabling dual-mode microscopic imaging (TEM and fluorescence).
Collapse
Affiliation(s)
- Xiaorong Li
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Yutong Shao
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Shibo Lv
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Jiarui Tian
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Daoyuan Zheng
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Jitao Song
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| | - Fengling Song
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China.
| |
Collapse
|
37
|
Daly CA, Hernandez R. Optimizing bags of artificial neural networks for the prediction of viability from sparse data. J Chem Phys 2020; 153:054112. [DOI: 10.1063/5.0017229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Clyde A. Daly
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Rigoberto Hernandez
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Departments of Chemical and Biomolecular Engineering, and Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
| |
Collapse
|