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Dallaev R. Advances in Materials with Self-Healing Properties: A Brief Review. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2464. [PMID: 38793530 PMCID: PMC11123491 DOI: 10.3390/ma17102464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024]
Abstract
The development of materials with self-healing capabilities has garnered considerable attention due to their potential to enhance the durability and longevity of various engineering and structural applications. In this review, we provide an overview of recent advances in materials with self-healing properties, encompassing polymers, ceramics, metals, and composites. We outline future research directions and potential applications of self-healing materials (SHMs) in diverse fields. This review aims to provide insights into the current state-of-the-art in SHM research and guide future efforts towards the development of innovative and sustainable materials with enhanced self-repair capabilities. Each material type showcases unique self-repair mechanisms tailored to address specific challenges. Furthermore, this review investigates crack healing processes, shedding light on the latest developments in this critical aspect of self-healing materials. Through an extensive exploration of these topics, this review aims to provide a comprehensive understanding of the current landscape and future directions in self-healing materials research.
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Affiliation(s)
- Rashid Dallaev
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic
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2
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Ralhan K, Iyer KA, Diaz LL, Bird R, Maind A, Zhou QA. Navigating Antibacterial Frontiers: A Panoramic Exploration of Antibacterial Landscapes, Resistance Mechanisms, and Emerging Therapeutic Strategies. ACS Infect Dis 2024; 10:1483-1519. [PMID: 38691668 PMCID: PMC11091902 DOI: 10.1021/acsinfecdis.4c00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
The development of effective antibacterial solutions has become paramount in maintaining global health in this era of increasing bacterial threats and rampant antibiotic resistance. Traditional antibiotics have played a significant role in combating bacterial infections throughout history. However, the emergence of novel resistant strains necessitates constant innovation in antibacterial research. We have analyzed the data on antibacterials from the CAS Content Collection, the largest human-curated collection of published scientific knowledge, which has proven valuable for quantitative analysis of global scientific knowledge. Our analysis focuses on mining the CAS Content Collection data for recent publications (since 2012). This article aims to explore the intricate landscape of antibacterial research while reviewing the advancement from traditional antibiotics to novel and emerging antibacterial strategies. By delving into the resistance mechanisms, this paper highlights the need to find alternate strategies to address the growing concern.
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Affiliation(s)
| | | | - Leilani Lotti Diaz
- CAS,
A Division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Robert Bird
- CAS,
A Division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Ankush Maind
- ACS
International India Pvt. Ltd., Pune 411044, India
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3
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Li X, Cong Y, Ovais M, Cardoso MB, Hameed S, Chen R, Chen M, Wang L. Copper-based nanoparticles against microbial infections. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023:e1888. [PMID: 37037205 DOI: 10.1002/wnan.1888] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/14/2023] [Accepted: 03/13/2023] [Indexed: 04/12/2023]
Abstract
Drug-resistant bacteria and highly infectious viruses are among the major global threats affecting the human health. There is an immediate need for novel strategies to tackle this challenge. Copper-based nanoparticles (CBNPs) have exhibited a broad antimicrobial capacity and are receiving increasing attention in this context. In this review, we describe the functionalization of CBNPs, elucidate their antibacterial and antiviral activity as well as applications, and briefly review their toxicity, biodistribution, and persistence. The limitations of the current study and potential solutions are also shortly discussed. The review will guide the rational design of functional nanomaterials for antimicrobial application. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease.
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Affiliation(s)
- Xiumin Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, Liaoning, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yalin Cong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Muhammad Ovais
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Mateus Borba Cardoso
- The Soft and Biological Matter Division, Brazilian Synchrotron Light Laboratory, Institute of Chemistry, University of Campinas, CEP 13083-970 Campinas, São Paulo, CP, 6154, Brazil
| | - Saima Hameed
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Rui Chen
- Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, 100083, China
| | - Mingli Chen
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, Liaoning, China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
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4
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Ao Y, Zhang E, Liu Y, Yang L, Li J, Wang F. Advanced Hydrogels With Nanoparticle Inclusion for Cartilage Tissue Engineering. Front Bioeng Biotechnol 2022; 10:951513. [PMID: 35845428 PMCID: PMC9277358 DOI: 10.3389/fbioe.2022.951513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
Cartilage dysfunctions caused by congenital disease, trauma and osteoarthritis are still a serious threat to joint activity and quality of life, potentially leading to disability. The relatively well-established tissue engineering technology based on hydrogel is a promising strategy for cartilage defect repairing. However, several unmet challenges remain to be resolved before its wide application and clinical translation, such as weak mechanical property and compromised bioactivity. The development of nanomedicine has brought a new dawn to cartilage tissue engineering, and composite hydrogel containing nanoparticles can substantially mimic natural cartilage components with good histocompatibility, demonstrating unique biological effects. In this review, we summarize the different advanced nanoparticle hydrogels currently adopted in cartilage tissue engineering. In addition, we also discuss the various application scenarios including injection and fabrication strategies of nanocomposite hydrogel in the field of cartilage repair. Finally, the future application prospects and challenges of nanocomposite hydrogel are also highlighted.
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Affiliation(s)
- Yunong Ao
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - En Zhang
- Chongqing Institute for Food and Drug Control, Chongqing, China
| | - Yangxi Liu
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Liu Yang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Li
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Institute for Food and Drug Control, Chongqing, China
- *Correspondence: Jun Li, ; Fuyou Wang,
| | - Fuyou Wang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- *Correspondence: Jun Li, ; Fuyou Wang,
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5
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Nicy V, Das M, Gurusubramanian G, Mondal P, Roy VK. Treatment of copper nanoparticles (CuNPs) for two spermatogenic cycles impairs testicular activity via down-regulating steroid receptors and inhibition of germ cell proliferation in a mice model. Nanotoxicology 2022; 16:658-678. [PMID: 36256793 DOI: 10.1080/17435390.2022.2133647] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although copper is an indispensable trace metal for biological functions, its excess exposure causes hazardous effects on health. Copper in the form of nanoparticles (CuNPs) is widely used at present and therefore, the living organism is at continuous risk of its adverse effect. The prolonged treatment of CuNPs has not been evaluated yet on the male reproductive system. To demonstrate the combined adverse effects and the mechanism of copper nanoparticles (CuNPs), three doses of CuNPs, 10, 100 and 200 mg/kg were orally given to mice for 70 days. The present study demonstrated that CuNPs decreased the sperm quality parameters, male circulating hormones, induces testicular damages, increased oxidative stress, apoptosis, decreases antioxidant enzymes, germ cell proliferation, and increases the expression of 8-oxoguanine DNA glycosylase-1 (OGG1), apelin receptor (APJ) as well. CuNPs also down-regulated the expression of AR and Erα in the testis. These results suggest that CuNPs manifested their adverse effect on testis via modulating steroid and cytokine (apelin) receptors. The adverse effect of testis was most pronounced at the highest dose (200 mg/kg) of CuNPs, however, other doses show a less toxic effect on various parameters. In conclusion, results indicated that CuNPs may impair spermatogenesis via oxidative stress-mediated DNA damage and germ cell apoptosis at high doses.
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Affiliation(s)
- Vanrohlu Nicy
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
| | - Milirani Das
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
| | | | - Pradip Mondal
- Department of Zoology, Netaji Mahavidyalaya, Hooghly, West Bengal, India
| | - Vikas Kumar Roy
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
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Yang X, Hou J, Tian Y, Zhao J, Sun Q, Zhou S. Antibacterial surfaces: Strategies and applications. SCIENCE CHINA. TECHNOLOGICAL SCIENCES 2022; 65:1000-1010. [PMID: 35018171 PMCID: PMC8739374 DOI: 10.1007/s11431-021-1962-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/12/2021] [Indexed: 05/11/2023]
Abstract
Antibacterial surfaces are surfaces that can resist bacteria, relying on the nature of the material itself. It is significant for safe food and water, human health, and industrial equipment. Biofilm is the main form of bacterial contamination on the material surface. Preventing the formation of biofilm is an efficient way to develop antibacterial surfaces. The strategy for constructing the antibacterial surface is divided into bacteria repelling and bacteria killing based on the formation of the biofilm. Material surface wettability, adhesion, and steric hindrance determine bacteria repelling performance. Bacteria should be killed by surface chemistry or physical structures when they are attached to a material surface irreversibly. Killing approaches are usually in the light of the cell membrane of bacteria. This review summarizes the fabrication methods and applications of antibacterial surfaces from the view of the treatment of the material surfaces. We also present several crucial points for developing long-term stability, no drug resistance, broad-spectrum, and even programable antibacterial surfaces.
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Affiliation(s)
- XiaoMeng Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
| | - JianWen Hou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
| | - Yuan Tian
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
| | - JingYa Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
| | - QiangQiang Sun
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
| | - ShaoBing Zhou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031 China
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7
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Nowicka-Krawczyk P, Komar M, Gutarowska B. Towards understanding the link between the deterioration of building materials and the nature of aerophytic green algae. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149856. [PMID: 34454144 DOI: 10.1016/j.scitotenv.2021.149856] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
The gradual degradation of technical materials by bacteria, cyanobacteria and fungi, is of great economic and social significance. In temperate climates, microbial colonization is associated with phototrophic eukaryotes, predominantly aerial green algae. However, these phototrophs are able to colonize most substrates in all terrestrial environments, regardless he geographical area. As little is known of the life processes of green algae, it is widely believed that their impact on materials is purely aesthetic. Most studies on the deterioration of building materials examine both algae and cyanobacteria and propose various methods, mainly conservation practices, to halt the causes and effects of algal colonization. However, to fully comprehend the phenomenon of biodeterioration by green algae, it is essential to understand both the causes and effects of their activities, as their life processes have considerable influence on changes of technical state of building materials. Aerophytic green algae possess various cellular adaptations and life mechanisms to survive and successfully develop in the harsh terrestrial environment. In response to desiccation, UV radiation and high/low temperature fluctuation they form endo- and epilithic biofilms, produce various protective biomolecules and extracellular matrices, and change the volume of cells. Due to their adaptation mechanisms and wide ecological tolerance, green algae undoubtedly have a high potential to accelerate the degradation of building materials. This article reviews the current state of knowledge regarding the mechanisms of biodeterioration, examines the role played by green algae as a result of their adaptation to a terrestrial environment, presents methods that can be used to prevent the development of green algal biofilms and indicate future prospects in the assessment of algal deterioration studies.
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Affiliation(s)
- Paulina Nowicka-Krawczyk
- Department of Algology and Mycology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha street 12/16, 90-237 Łódź, Poland.
| | - Michał Komar
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Łódź University of Technology, Wólczańska 171/173 street, 90-924 Łódź, Poland.
| | - Beata Gutarowska
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Łódź University of Technology, Wólczańska 171/173 street, 90-924 Łódź, Poland.
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8
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Clasky AJ, Watchorn JD, Chen PZ, Gu FX. From prevention to diagnosis and treatment: Biomedical applications of metal nanoparticle-hydrogel composites. Acta Biomater 2021; 122:1-25. [PMID: 33352300 DOI: 10.1016/j.actbio.2020.12.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/22/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022]
Abstract
Recent advances in biomaterials integrate metal nanoparticles with hydrogels to generate composite materials that exhibit new or improved properties. By precisely controlling the composition, arrangement and interactions of their constituents, these hybrid materials facilitate biomedical applications through myriad approaches. In this work we seek to highlight three popular frameworks for designing metal nanoparticle-hydrogel hybrid materials for biomedical applications. In the first approach, the properties of metal nanoparticles are incorporated into a hydrogel matrix such that the composite is selectively responsive to stimuli such as light and magnetic flux, enabling precisely activated therapeutics and self-healing biomaterials. The second approach mediates the dynamic reorganization of metal nanoparticles based on environment-directed changes in hydrogel structure, leading to chemosensing, microbial and viral detection, and drug-delivery capabilities. In the third approach, the hydrogel matrix spatially arranges metal nanoparticles to produce metamaterials or passively enhance nanoparticle properties to generate improved substrates for biomedical applications including tissue engineering and wound healing. This article reviews the construction, properties and biomedical applications of metal nanoparticle-hydrogel composites, with a focus on how they help to prevent, diagnose and treat diseases. Discussion includes how the composites lead to new or improved properties, how current biomedical research leverages these properties and the emerging directions in this growing field.
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9
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Balasubramaniam B, Prateek, Ranjan S, Saraf M, Kar P, Singh SP, Thakur VK, Singh A, Gupta RK. Antibacterial and Antiviral Functional Materials: Chemistry and Biological Activity toward Tackling COVID-19-like Pandemics. ACS Pharmacol Transl Sci 2021; 4:8-54. [PMID: 33615160 PMCID: PMC7784665 DOI: 10.1021/acsptsci.0c00174] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Indexed: 12/12/2022]
Abstract
The ongoing worldwide pandemic due to COVID-19 has created awareness toward ensuring best practices to avoid the spread of microorganisms. In this regard, the research on creating a surface which destroys or inhibits the adherence of microbial/viral entities has gained renewed interest. Although many research reports are available on the antibacterial materials or coatings, there is a relatively small amount of data available on the use of antiviral materials. However, with more research geared toward this area, new information is being added to the literature every day. The combination of antibacterial and antiviral chemical entities represents a potentially path-breaking intervention to mitigate the spread of disease-causing agents. In this review, we have surveyed antibacterial and antiviral materials of various classes such as small-molecule organics, synthetic and biodegradable polymers, silver, TiO2, and copper-derived chemicals. The surface protection mechanisms of the materials against the pathogen colonies are discussed in detail, which highlights the key differences that could determine the parameters that would govern the future development of advanced antibacterial and antiviral materials and surfaces.
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Affiliation(s)
| | - Prateek
- Department
of Chemical Engineering, Indian Institute
of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Sudhir Ranjan
- Department
of Chemical Engineering, Indian Institute
of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Mohit Saraf
- Department
of Chemical Engineering, Indian Institute
of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Prasenjit Kar
- Department
of Chemical Engineering, Indian Institute
of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Surya Pratap Singh
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Vijay Kumar Thakur
- Biorefining
and Advanced Materials Research Center, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Anand Singh
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Raju Kumar Gupta
- Department
of Chemical Engineering, Indian Institute
of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
- Center
for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
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10
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Talukdar MIA, Ahamad I, Iqbal S, Malik MA, Dar OA, Khursheed Akram M, Fatma T, Hashmi AA. Fabrication of metal incorporated polymer composite: An excellent antibacterial agent. J Mol Struct 2021; 1225:129091. [PMID: 32834117 PMCID: PMC7428313 DOI: 10.1016/j.molstruc.2020.129091] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/11/2020] [Accepted: 08/14/2020] [Indexed: 12/01/2022]
Abstract
US Food and Drug Administration (FDA) allowed for direct addition of castor oil for human consumption as food and most recently FDA approved castor oil as over-the-counter (OTC) for laxative drug. The present article highlights the green route phosphorylation of castor oil (COL) via condensation polymerization. Further, the incorporation of metal ions Cu (II)) and Zn (II) into the polymer matrix have been carried out at elevated temperature using catalyst p-toluene sulphonic acid (PTSA). The modification of the said material has been confirmed by FT-IR, UV-VIS, and 1H and 31P-NMR spectroscopy. Further, the in vitro antibacterial activities of the metal incorporated-COL has been performed by standard methods against B. cereus (MCC2243) (gram-positive) and E. coli (MCC2412) (gram-negative) bacteria. The results revealed that the incorporation of metal ions into the polymer matrix increases the antibacterial activity largely. This may be governed by the electrostatic interaction between metal ions and microbes, also the generation of free active oxygen hinders the normal activity of bacteria. These results suggest that the synthesized material may act a potential candidate for low cost, environment friendly antibacterial agents and may find their application in clinical fields. Herein we are also proposing mechanism of antibacterial activity.
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Affiliation(s)
- Md Ikbal Ahmed Talukdar
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Irshad Ahamad
- Cynobacterial Biotechnology Lab, Department of Bioscience, Jamia Millia Islamia, New Delhi-110025, India
| | - Sajid Iqbal
- Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Manzoor Ahmad Malik
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Ovas Ahmad Dar
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | | | - Tasneem Fatma
- Cynobacterial Biotechnology Lab, Department of Bioscience, Jamia Millia Islamia, New Delhi-110025, India
| | - Athar Adil Hashmi
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
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Sun X, Agate S, Salem KS, Lucia L, Pal L. Hydrogel-Based Sensor Networks: Compositions, Properties, and Applications—A Review. ACS APPLIED BIO MATERIALS 2020; 4:140-162. [DOI: 10.1021/acsabm.0c01011] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaohang Sun
- Department of Forest Biomaterials, North Carolina State University, 431 Dan Allen Dr., Raleigh, North Carolina 27695, United States
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Sachin Agate
- Department of Forest Biomaterials, North Carolina State University, 431 Dan Allen Dr., Raleigh, North Carolina 27695, United States
| | - Khandoker Samaher Salem
- Department of Forest Biomaterials, North Carolina State University, 431 Dan Allen Dr., Raleigh, North Carolina 27695, United States
| | - Lucian Lucia
- Department of Forest Biomaterials, North Carolina State University, 431 Dan Allen Dr., Raleigh, North Carolina 27695, United States
| | - Lokendra Pal
- Department of Forest Biomaterials, North Carolina State University, 431 Dan Allen Dr., Raleigh, North Carolina 27695, United States
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12
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Park HS, Kwak C, Lee J, Lim S, Yang J, Kim J, Ryu SY, Na HB, Lee J. Bulk Nanoencapsulation of Phase Change Materials (PCMs) via Spontaneous Spreading of a UV-Curable Prepolymer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51092-51101. [PMID: 33108175 DOI: 10.1021/acsami.0c15146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Phase change materials (PCMs) have received considerable attention for various latent heat storage systems for efficient thermal energy utilization. Herein, a facile and fast method for the bulk nanoencapsulation of organic PCMs is proposed, based on the thermodynamically spontaneous spreading phenomenon of three immiscible liquid phases. In this approach, a complete engulfing of PCM nanodroplets (core phase) by immiscible prepolymer droplets (coating phase), both of which are bulk-dispersed in another immiscible medium (continuous phase), is thermodynamically driven by the relation between the surface energies of the core, coating, and continuous phases. To demonstrate the proposed method, melted n-docosane (PCM, core phase) nanodroplets are completely engulfed within a couple of minutes by immiscible polyethylene glycol diacrylate (PEGDA, coating phase) in an aqueous poly(vinyl alcohol) solution (continuous phase), and the PEGDA layer quickly cross-linked upon UV irradiation to form a rigid shell protecting the PCM core. As-produced PCM nanocapsules display promising heat storage and release performances as well as high durability in repeated heating-cooling cycles in both dry and wet states. The proposed process may serve as a useful platform for bulk production of PCM nanocapsules with various core and shell compositions in a facile, fast, and scalable way.
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Affiliation(s)
- Hyun-Su Park
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Chaesu Kwak
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Junsoo Lee
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Sehyeong Lim
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Jeewon Yang
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Jieun Kim
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Seoung Young Ryu
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Hyon Bin Na
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
| | - Joohyung Lee
- Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Korea
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13
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Pinho AC, Piedade AP. Polymeric Coatings with Antimicrobial Activity: A Short Review. Polymers (Basel) 2020; 12:polym12112469. [PMID: 33114426 PMCID: PMC7692441 DOI: 10.3390/polym12112469] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/21/2022] Open
Abstract
The actual situation of microorganisms resistant to antibiotics and pandemics caused by a virus makes research in the area of antimicrobial and antiviral materials and surfaces more urgent than ever. Several strategies can be pursued to attain such properties using different classes of materials. This review focuses on polymeric materials that are applied as coatings onto pre-existing components/parts mainly to inhibit microbial activity, but polymer surfaces with biocidal properties can be reported. Among the several approaches that can be done when addressing polymeric coatings, this review will be divided in two: antimicrobial activities due to the topographic cues, and one based on the chemistry of the surface. Some future perspectives on this topic will be given together with the conclusions of the literature survey.
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14
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Liu J, Qu S, Suo Z, Yang W. Functional hydrogel coatings. Natl Sci Rev 2020; 8:nwaa254. [PMID: 34691578 PMCID: PMC8288423 DOI: 10.1093/nsr/nwaa254] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/21/2022] Open
Abstract
Hydrogels—natural or synthetic polymer networks that swell in water—can be made mechanically, chemically and electrically compatible with living tissues. There has been intense research and development of hydrogels for medical applications since the invention of hydrogel contact lenses in 1960. More recently, functional hydrogel coatings with controlled thickness and tough adhesion have been achieved on various substrates. Hydrogel-coated substrates combine the advantages of hydrogels, such as lubricity, biocompatibility and anti-biofouling properties, with the advantages of substrates, such as stiffness, toughness and strength. In this review, we focus on three aspects of functional hydrogel coatings: (i) applications and functions enabled by hydrogel coatings, (ii) methods of coating various substrates with different functional hydrogels with tough adhesion, and (iii) tests to evaluate the adhesion between functional hydrogel coatings and substrates. Conclusions and outlook are given at the end of this review.
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Affiliation(s)
- Junjie Liu
- Center for X-Mechanics, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province and Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory of Fluid Power and Mechatronic System, Zhejiang University, Hangzhou 310027, China
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Shaoxing Qu
- Center for X-Mechanics, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province and Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory of Fluid Power and Mechatronic System, Zhejiang University, Hangzhou 310027, China
| | - Zhigang Suo
- John A. Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA 02138, USA
| | - Wei Yang
- Center for X-Mechanics, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province and Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
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15
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Namazi H, Pooresmaeil M, Hasani M. Oxidized starch/CuO bio-nanocomposite hydrogels as an antibacterial and stimuli-responsive agent with potential colon-specific naproxen delivery. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1798431] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hassan Namazi
- Research Laboratory of Dendrimers and Nanopolymers, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science, Tabriz, Iran
| | - Malihe Pooresmaeil
- Research Laboratory of Dendrimers and Nanopolymers, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mohsen Hasani
- Research Laboratory of Dendrimers and Nanopolymers, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Kaur P, Choudhary R, Pal A, Mony C, Adholeya A. Polymer - Metal Nanocomplexes Based Delivery System: A Boon for Agriculture Revolution. Curr Top Med Chem 2020; 20:1009-1028. [DOI: 10.2174/1568026620666200330160810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/22/2020] [Accepted: 02/18/2020] [Indexed: 01/22/2023]
Abstract
Metal nanoparticles are well known for their antimicrobial properties. The use of metalbased
nanoparticles in the agricultural field has considerably increased globally by both direct and
indirect means for the management of plant diseases. In this context, the development of controlled
delivery systems for slow and sustained release of metal nanoparticles is crucial for prolonged antimicrobial
activity. Polymers have emerged as a valuable carrier for controlled delivery of metal nanoparticles
as agrochemicals because of their distinctive properties. The most significant benefits of encapsulating
metal nanoparticles in a polymer matrix include the ability to function as a protector of metal
nanoparticles and their controlled release with prolonged efficacy. This review focuses on loading
strategies and releasing behavior of metal nanoparticles in the polymer matrix as antimicrobial agents
for plant diseases. The Polymer-metal nanocomplexes (PMNs) comprise a biocompatible polymeric
matrix and metal nanoparticles as active components of an antimicrobial agent, pesticides and plant
growth regulators used to enhance the crop productivity.
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Affiliation(s)
- Pawan Kaur
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Rita Choudhary
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Anamika Pal
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Chanchal Mony
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Alok Adholeya
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
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Mitra D, Kang ET, Neoh KG. Antimicrobial Copper-Based Materials and Coatings: Potential Multifaceted Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21159-21182. [PMID: 31880421 DOI: 10.1021/acsami.9b17815] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Surface contamination by microbes leads to several detrimental consequences like hospital- and device-associated infections. One measure to inhibit surface contamination is to confer the surfaces with antimicrobial properties. Copper's antimicrobial properties have been known since ancient times, and the recent resurgence in exploiting copper for application as antimicrobial materials or coatings is motivated by the growing concern about antibiotic resistance and the pressure to reduce antibiotic use. Copper, unlike silver, demonstrates rapid and high microbicidal efficacy against pathogens that are in close contact under ambient indoor conditions, which enhances its range of applicability. This review highlights the mechanisms behind copper's potent antimicrobial property, the design and fabrication of different copper-based antimicrobial materials and coatings comprising metallic copper/copper alloys, copper nanoparticles or ions, and their potential for practical applications. Finally, as the antimicrobial coatings market is expected to grow, we offer our perspectives on the implications of increased copper release into the environment and the potential ecotoxicity effects and possibility of development of resistant genes in pathogens.
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Affiliation(s)
- Debirupa Mitra
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
| | - En-Tang Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
| | - Koon Gee Neoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
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18
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Decandia G, Palumbo F, Treglia A, Armenise V, Favia P, Baruzzi F, Unger K, Perrotta A, Coclite AM. Initiated Chemical Vapor Deposition of Crosslinked Organic Coatings for Controlling Gentamicin Delivery. Pharmaceutics 2020; 12:E213. [PMID: 32121608 PMCID: PMC7150873 DOI: 10.3390/pharmaceutics12030213] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 01/14/2023] Open
Abstract
A coating consisting of a copolymer of methacrylic acid and ethylene glycol dimethacrylate was deposited over a gentamicin film by initiated chemical vapor deposition with the aim of controlling the drug release. Gentamicin release in water was monitored by means of conductance measurements and of UV-vis Fluorescence Spectroscopy. The influence of the polymer chemical composition, specifically of its crosslinking density, has been investigated as a tool to control the swelling behavior of the initiated chemical vapor deposition (iCVD) coating in water, and therefore its ability to release the drug. Agar diffusion test and microbroth dilution assays against Staphylococcus aureus and Pseudomonas aeruginosa on cellulose coated substrates confirmed that the antibacterial activity of the drug released by the coating was retained, though the release of gentamicin was not complete.
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Affiliation(s)
- Gianfranco Decandia
- Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (G.D.); (A.T.); (V.A.); (P.F.)
| | - Fabio Palumbo
- Institute of Nanotechnology, National Research Council of Italy, c/o Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
| | - Annalisa Treglia
- Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (G.D.); (A.T.); (V.A.); (P.F.)
| | - Vincenza Armenise
- Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (G.D.); (A.T.); (V.A.); (P.F.)
| | - Pietro Favia
- Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (G.D.); (A.T.); (V.A.); (P.F.)
- Institute of Nanotechnology, National Research Council of Italy, c/o Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
| | - Federico Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy;
| | - Katrin Unger
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria; (K.U.); (A.P.); (A.M.C.)
| | - Alberto Perrotta
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria; (K.U.); (A.P.); (A.M.C.)
| | - Anna Maria Coclite
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria; (K.U.); (A.P.); (A.M.C.)
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Cometa S, Bonifacio MA, Ferreira AM, Gentile P, De Giglio E. Surface Characterization of Electro-Assisted Titanium Implants: A Multi-Technique Approach. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E705. [PMID: 32033256 PMCID: PMC7040792 DOI: 10.3390/ma13030705] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 12/20/2022]
Abstract
The understanding of chemical-physical, morphological, and mechanical properties of polymer coatings is a crucial preliminary step for further biological evaluation of the processes occurring on the coatings' surface. Several studies have demonstrated how surface properties play a key role in the interactions between biomolecules (e.g., proteins, cells, extracellular matrix, and biological fluids) and titanium, such as chemical composition (investigated by means of XPS, TOF-SIMS, and ATR-FTIR), morphology (SEM-EDX), roughness (AFM), thickness (Ellipsometry), wettability (CA), solution-surface interactions (QCM-D), and mechanical features (hardness, elastic modulus, adhesion, and fatigue strength). In this review, we report an overview of the main analytical and mechanical methods commonly used to characterize polymer-based coatings deposited on titanium implants by electro-assisted techniques. A description of the relevance and shortcomings of each technique is described, in order to provide suitable information for the design and characterization of advanced coatings or for the optimization of the existing ones.
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Affiliation(s)
| | - Maria A. Bonifacio
- Jaber Innovation s.r.l., 00144 Rome, Italy;
- Department of Chemistry, University of Bari “Aldo Moro”, 70126 Bari, Italy;
| | - Ana M. Ferreira
- School of Engineering, Newcastle University, Newcastle NE1 7RU, UK; (A.M.F.); (P.G.)
| | - Piergiorgio Gentile
- School of Engineering, Newcastle University, Newcastle NE1 7RU, UK; (A.M.F.); (P.G.)
| | - Elvira De Giglio
- Department of Chemistry, University of Bari “Aldo Moro”, 70126 Bari, Italy;
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20
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Bakhshandeh S, Amin Yavari S. Electrophoretic deposition: a versatile tool against biomaterial associated infections. J Mater Chem B 2018; 6:1128-1148. [PMID: 32254176 DOI: 10.1039/c7tb02445b] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biomaterial-associated infections (BAIs) are today considered as one of the most withering complications of orthopedic implant surgery. Even though BAIs occur relatively infrequently in primary joint replacement surgeries (incidence rates around 1-2%), revision arthroplasties carry up to 40% risk of infection recurrence, with devastating consequences for the patient and significant associated cost. Once the responsible pathogens, mainly bacteria, attach to the surface of the biomaterial, they start creating layers of extracellular matrix with complex architectures, called biofilms. These last mentioned, encapsulate and protect bacteria by hindering the immune response and impeding antibiotics from reaching the pathogens. To prevent such an outcome, the surface of the biomaterials, in particular implants, can be modified in order to play the role of inherent drug delivery devices or as substrates for antibacterial/multifunctional coating deposition. This paper presents an overview of novel electrochemically-triggered deposition strategies, with a focus on electrophoretic deposition (EPD), a versatile and cost-effective technique for organic and inorganic material deposition. Other than being a simple deposition tool, EPD has been recently employed to create novel micro/nanostructured surfaces for multi-purpose antibacterial approaches, presented in detail in this review. In addition, a thorough comparison and assessment of the latest antibacterial and multifunctional compounds deposited by means of EPD have been reported, followed by a critical reflection on current and future prospects of the topic. The relative simplicity of EPD's application, has, by some means, undermined the fundamental requirement of rationality of multifunctional coating design. The demanding practical needs for a successful clinical translation in the growing fields of tissue engineering and antibacterial/multifunctional implant coatings, calls for a more systematic in vitro experimental design rationale, in order to make amends for the scarcity of significant in vivo and clinical studies.
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Affiliation(s)
- Sadra Bakhshandeh
- Department of Orthopedics, University Medical Centre Utrecht, Utrecht, The Netherlands.
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21
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Wahid F, Zhong C, Wang HS, Hu XH, Chu LQ. Recent Advances in Antimicrobial Hydrogels Containing Metal Ions and Metals/Metal Oxide Nanoparticles. Polymers (Basel) 2017; 9:E636. [PMID: 30965938 PMCID: PMC6418809 DOI: 10.3390/polym9120636] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 11/17/2017] [Accepted: 11/19/2017] [Indexed: 02/08/2023] Open
Abstract
Recently, the rapid emergence of antibiotic-resistant pathogens has caused a serious health problem. Scientists respond to the threat by developing new antimicrobial materials to prevent or control infections caused by these pathogens. Polymer-based nanocomposite hydrogels are versatile materials as an alternative to conventional antimicrobial agents. Cross-linking of polymeric materials by metal ions or the combination of polymeric hydrogels with nanoparticles (metals and metal oxide) is a simple and effective approach for obtaining a multicomponent system with diverse functionalities. Several metals and metal oxides such as silver (Ag), gold (Au), zinc oxide (ZnO), copper oxide (CuO), titanium dioxide (TiO₂) and magnesium oxide (MgO) have been loaded into hydrogels for antimicrobial applications. The incorporation of metals and metal oxide nanoparticles into hydrogels not only enhances the antimicrobial activity of hydrogels, but also improve their mechanical characteristics. Herein, we summarize recent advances in hydrogels containing metal ions, metals and metal oxide nanoparticles with potential antimicrobial properties.
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Affiliation(s)
- Fazli Wahid
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin 300457, China.
| | - Cheng Zhong
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin 300457, China.
| | - Hai-Song Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin 300457, China.
| | - Xiao-Hui Hu
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin 300457, China.
| | - Li-Qiang Chu
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin 300457, China.
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22
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Aerosol-assisted low pressure plasma deposition of antimicrobial hybrid organic-inorganic Cu-composite thin films for food packaging applications. INNOV FOOD SCI EMERG 2017. [DOI: 10.1016/j.ifset.2017.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Tamayo L, Azócar M, Kogan M, Riveros A, Páez M. Copper-polymer nanocomposites: An excellent and cost-effective biocide for use on antibacterial surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1391-409. [DOI: 10.1016/j.msec.2016.08.041] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/25/2016] [Accepted: 08/14/2016] [Indexed: 12/15/2022]
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24
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Sardella E, Palumbo F, Camporeale G, Favia P. Non-Equilibrium Plasma Processing for the Preparation of Antibacterial Surfaces. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E515. [PMID: 28773637 PMCID: PMC5456949 DOI: 10.3390/ma9070515] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/12/2016] [Accepted: 06/20/2016] [Indexed: 12/19/2022]
Abstract
Non-equilibrium plasmas offer several strategies for developing antibacterial surfaces that are able to repel and/or to kill bacteria. Due to the variety of devices, implants, and materials in general, as well as of bacteria and applications, plasma assisted antibacterial strategies need to be tailored to each specific surface. Nano-composite coatings containing inorganic (metals and metal oxides) or organic (drugs and biomolecules) compounds can be deposited in one step, and used as drug delivery systems. On the other hand, functional coatings can be plasma-deposited and used to bind antibacterial molecules, for synthesizing surfaces with long lasting antibacterial activity. In addition, non-fouling coatings can be produced to inhibit the adhesion of bacteria and reduce the formation of biofilm. This paper reviews plasma-based strategies aimed to reduce bacterial attachment and proliferation on biomedical materials and devices, but also onto materials used in other fields. Most of the activities described have been developed in the lab of the authors.
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Affiliation(s)
- Eloisa Sardella
- Istituto di Nanotecnologia, Consiglio Nazionale delle Ricerche, Via Orabona 4, 70126 Bari, Italy.
| | - Fabio Palumbo
- Istituto di Nanotecnologia, Consiglio Nazionale delle Ricerche, Via Orabona 4, 70126 Bari, Italy.
| | - Giuseppe Camporeale
- Dipartimento di Chimica Università degli Studi di Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy.
| | - Pietro Favia
- Istituto di Nanotecnologia, Consiglio Nazionale delle Ricerche, Via Orabona 4, 70126 Bari, Italy.
- Dipartimento di Chimica Università degli Studi di Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy.
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25
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Khameneh B, Diab R, Ghazvini K, Fazly Bazzaz BS. Breakthroughs in bacterial resistance mechanisms and the potential ways to combat them. Microb Pathog 2016; 95:32-42. [DOI: 10.1016/j.micpath.2016.02.009] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 02/07/2016] [Accepted: 02/17/2016] [Indexed: 12/17/2022]
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Gao W, Zhang Y, Zhang Q, Zhang L. Nanoparticle-Hydrogel: A Hybrid Biomaterial System for Localized Drug Delivery. Ann Biomed Eng 2016; 44:2049-61. [PMID: 26951462 DOI: 10.1007/s10439-016-1583-9] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 02/26/2016] [Indexed: 12/20/2022]
Abstract
Nanoparticles have offered a unique set of properties for drug delivery including high drug loading capacity, combinatorial delivery, controlled and sustained drug release, prolonged stability and lifetime, and targeted delivery. To further enhance therapeutic index, especially for localized application, nanoparticles have been increasingly combined with hydrogels to form a hybrid biomaterial system for controlled drug delivery. Herein, we review recent progresses in engineering such nanoparticle-hydrogel hybrid system (namely 'NP-gel') with a particular focus on its application for localized drug delivery. Specifically, we highlight four research areas where NP-gel has shown great promises, including (1) passively controlled drug release, (2) stimuli-responsive drug delivery, (3) site-specific drug delivery, and (4) detoxification. Overall, integrating therapeutic nanoparticles with hydrogel technologies creates a unique and robust hybrid biomaterial system that enables effective localized drug delivery.
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Affiliation(s)
- Weiwei Gao
- Department of Nanoengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Yue Zhang
- Department of Nanoengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Qiangzhe Zhang
- Department of Nanoengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Liangfang Zhang
- Department of Nanoengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA.
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27
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Zhao F, Yao D, Guo R, Deng L, Dong A, Zhang J. Composites of Polymer Hydrogels and Nanoparticulate Systems for Biomedical and Pharmaceutical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:2054-2130. [PMID: 28347111 PMCID: PMC5304774 DOI: 10.3390/nano5042054] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Due to their unique structures and properties, three-dimensional hydrogels and nanostructured particles have been widely studied and shown a very high potential for medical, therapeutic and diagnostic applications. However, hydrogels and nanoparticulate systems have respective disadvantages that limit their widespread applications. Recently, the incorporation of nanostructured fillers into hydrogels has been developed as an innovative means for the creation of novel materials with diverse functionality in order to meet new challenges. In this review, the fundamentals of hydrogels and nanoparticles (NPs) were briefly discussed, and then we comprehensively summarized recent advances in the design, synthesis, functionalization and application of nanocomposite hydrogels with enhanced mechanical, biological and physicochemical properties. Moreover, the current challenges and future opportunities for the use of these promising materials in the biomedical sector, especially the nanocomposite hydrogels produced from hydrogels and polymeric NPs, are discussed.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Dan Yao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ruiwei Guo
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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28
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Zuverza-Mena N, Medina-Velo IA, Barrios AC, Tan W, Peralta-Videa JR, Gardea-Torresdey JL. Copper nanoparticles/compounds impact agronomic and physiological parameters in cilantro (Coriandrum sativum). ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2015; 17:1783-93. [PMID: 26311125 DOI: 10.1039/c5em00329f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The environmental impacts of Cu-based nanoparticles (NPs) are not well understood. In this study, cilantro (Coriandrum sativum) was germinated and grown in commercial potting mix soil amended with Cu(OH)2 (Kocide and CuPRO), nano-copper (nCu), micro-copper (μCu), nano-copper oxide (nCuO), micro-copper oxide (μCuO) and ionic Cu (CuCl2) at either 20 or 80 mg Cu per kg. In addition to seed germination and plant elongation, relative chlorophyll content and micro and macroelement concentrations were determined. At both concentrations, only nCuO, μCuO, and ionic Cu, showed statistically significant reductions in germination. Although compared with control, the relative germination was reduced by ∼50% with nCuO at both concentrations, and by ∼40% with μCuO, also at both concentrations, the difference among compounds was not statistically significant. Exposure to μCuO at both concentrations and nCu at 80 mg kg(-1) significantly reduced (p≤ 0.05) shoot elongation by 11% and 12.4%, respectively, compared with control. Only μCuO at 20 mg kg(-1) significantly reduced (26%) the relative chlorophyll content, compared with control. None of the treatments increased root Cu, but all of them, except μCuO at 20 mg kg(-1), significantly increased shoot Cu (p≤ 0.05). Micro and macro elements B, Zn, Mn, Ca, Mg, P, and S were significantly reduced in shoots (p≤ 0.05). Similar results were observed in roots. These results showed that Cu-based NPs/compounds depress nutrient element accumulation in cilantro, which could impact human nutrition.
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Affiliation(s)
- Nubia Zuverza-Mena
- Metallurgical and Materials Engineering Department, The University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA
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29
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Soares JW, Kirby R, Doherty LA, Meehan A, Arcidiacono S. Immobilization and orientation-dependent activity of a naturally occurring antimicrobial peptide. J Pept Sci 2015; 21:669-79. [DOI: 10.1002/psc.2787] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 03/10/2015] [Accepted: 04/27/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Jason W. Soares
- U.S. Army Natick Soldier Research, Development and Engineering Center; Natick MA 01760 USA
| | - Romy Kirby
- U.S. Army Natick Soldier Research, Development and Engineering Center; Natick MA 01760 USA
| | - Laurel A. Doherty
- U.S. Army Natick Soldier Research, Development and Engineering Center; Natick MA 01760 USA
| | - Alexa Meehan
- U.S. Army Natick Soldier Research, Development and Engineering Center; Natick MA 01760 USA
| | - Steven Arcidiacono
- U.S. Army Natick Soldier Research, Development and Engineering Center; Natick MA 01760 USA
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Palza H, Quijada R, Delgado K. Antimicrobial polymer composites with copper micro- and nanoparticles: Effect of particle size and polymer matrix. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515578870] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The addition of metal particles, for instance, silver or copper, into polymer matrices is a relevant strategy producing novel antimicrobial materials. By using two particles with diameters around 10 nm and 45 µm, and polymers with different characteristics, the effect of filler size and matrix on the biocide behavior of polymer/copper composites was studied. The composites were prepared by melt mixing, and the ion release from these materials was used to obtain critical information about the processes involved. Regarding the effect of the particle size, our results for polypropylene showed that this variable drastically changes the release of copper from the matrix. The ion release rate from nanocomposites increased quickly exhibiting a sharp maximum during the first day; meanwhile, in microcomposites, the release rate increased slowly releasing lower ions. The relevance of particle size was confirmed by the antibacterial behavior of the samples as polypropylene with nanoparticles displayed larger activities against Staphylococcus aureus and Pseudomonas aeruginosa bacteria than microcomposites. These results further showed the relationship between copper ion release and antimicrobial behavior in polymer/metal composites. Our findings further revealed that the ion release from polymer composites could be improved by either increasing the hydrophilic characteristic of the matrix or by lowering its crystallinity. These observations allowed the conclusion that both the polymeric matrix and the size of the metal filler are relevant variables toward the design of antimicrobial composite materials.
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Affiliation(s)
- Humberto Palza
- Departamento de Ingeniería Química y Biotecnología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - Raúl Quijada
- Departamento de Ingeniería Química y Biotecnología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - Katherine Delgado
- Departamento de Ingeniería Química y Biotecnología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
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Thoniyot P, Tan MJ, Karim AA, Young DJ, Loh XJ. Nanoparticle-Hydrogel Composites: Concept, Design, and Applications of These Promising, Multi-Functional Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2015; 2:1400010. [PMID: 27980900 PMCID: PMC5115280 DOI: 10.1002/advs.201400010] [Citation(s) in RCA: 430] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Indexed: 05/19/2023]
Abstract
New technologies rely on the development of new materials, and these may simply be the innovative combination of known components. The structural combination of a polymer hydrogel network with a nanoparticle (metals, non-metals, metal oxides, and polymeric moieties) holds the promise of providing superior functionality to the composite material with applications in diverse fields, including catalysis, electronics, bio-sensing, drug delivery, nano-medicine, and environmental remediation. This mixing may result in a synergistic property enhancement of each component: for example, the mechanical strength of the hydrogel and concomitantly decrease aggregation of the nanoparticles. These mutual benefits and the associated potential applications have seen a surge of interest in the past decade from multi-disciplinary research groups. Recent advances in nanoparticle-hydrogel composites are herein reviewed with a focus on their synthesis, design, potential applications, and the inherent challenges accompanying these exciting materials.
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Affiliation(s)
- Praveen Thoniyot
- Institute of Materials Research and Engineering 3 Research Link Singapore 117602 Singapore
| | - Mein Jin Tan
- Institute of Materials Research and Engineering 3 Research Link Singapore 117602 Singapore
| | - Anis Abdul Karim
- Institute of Materials Research and Engineering 3 Research Link Singapore 117602 Singapore
| | - David James Young
- Institute of Materials Research and Engineering 3 Research Link Singapore 117602 Singapore; School of Science Monash University Malaysia Bandar Sunway 47500 Malaysia
| | - Xian Jun Loh
- Institute of Materials Research and Engineering 3 Research Link Singapore 117602 Singapore; Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117576 Singapore
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Palza H. Antimicrobial polymers with metal nanoparticles. Int J Mol Sci 2015; 16:2099-116. [PMID: 25607734 PMCID: PMC4307351 DOI: 10.3390/ijms16012099] [Citation(s) in RCA: 319] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 01/09/2015] [Indexed: 11/23/2022] Open
Abstract
Metals, such as copper and silver, can be extremely toxic to bacteria at exceptionally low concentrations. Because of this biocidal activity, metals have been widely used as antimicrobial agents in a multitude of applications related with agriculture, healthcare, and the industry in general. Unlike other antimicrobial agents, metals are stable under conditions currently found in the industry allowing their use as additives. Today these metal based additives are found as: particles, ions absorbed/exchanged in different carriers, salts, hybrid structures, etc. One recent route to further extend the antimicrobial applications of these metals is by their incorporation as nanoparticles into polymer matrices. These polymer/metal nanocomposites can be prepared by several routes such as in situ synthesis of the nanoparticle within a hydrogel or direct addition of the metal nanofiller into a thermoplastic matrix. The objective of the present review is to show examples of polymer/metal composites designed to have antimicrobial activities, with a special focus on copper and silver metal nanoparticles and their mechanisms.
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Affiliation(s)
- Humberto Palza
- Departamento de Ingeniería Química y Biotecnología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 850, Santiago 8320000, Chile.
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Chen JY, Sun L, Jiang W, Lynch VM. Antimicrobial regenerated cellulose/nano-silver fiber without leaching. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514556960] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The formation of antimicrobial regenerated cellulose fibers using an ionic liquid solvent, 1-butyl-3-methylimidazolium chloride, and silver nanoparticles was studied. The cellulose preparation and dispersion efficiency of the silver nanoparticles in the solvent were evaluated via scanning electron microscope and transmission electron microscopy in terms of different processing conditions. The influence of silver nanoparticles on regenerated cellulose fiber crystallization and strength was examined using a wide angle X-ray diffractometry and tensiometry, respectively. The bioactive efficacy of the cellulose/nano-silver fiber was tested in accordance with the standard method of ASTM E 2149-10. The cellulose/nano-silver fibers were bioactive and killed Escherichia coli almost completely without any leaching problems. The addition of nano-silver significantly increased the cellulose fiber tensile strength and modulus with an insignificant reduction in fiber elongation, and a slower thermal decomposition rate, evidenced by increased fiber crystallinity. Higher processing temperatures improved the nano-silver dispersion efficiency. The final nano-silver suspension in the regenerated cellulose matrix was composed of scattered clusters with an average size of 700 nm and a distribution density of 14,098 mm−2.
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Affiliation(s)
- Jonathan Y Chen
- School of Human Ecology, The University of Texas at Austin, Austin, TX, USA
| | - Liangfeng Sun
- School of Human Ecology, The University of Texas at Austin, Austin, TX, USA
| | - Wei Jiang
- School of Human Ecology, The University of Texas at Austin, Austin, TX, USA
| | - Vincent M Lynch
- Department of Chemistry, The University of Texas at Austin, Austin, TX, USA
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Mattioli-Belmonte M, Cometa S, Ferretti C, Iatta R, Trapani A, Ceci E, Falconi M, De Giglio E. Characterization and cytocompatibility of an antibiotic/chitosan/cyclodextrins nanocoating on titanium implants. Carbohydr Polym 2014; 110:173-82. [PMID: 24906744 DOI: 10.1016/j.carbpol.2014.03.097] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 03/24/2014] [Accepted: 03/26/2014] [Indexed: 10/25/2022]
Abstract
A novel ciprofloxacin loaded chitosan nanoparticle-based coating onto titanium substrates has been developed and characterized to obtain an orthopaedic implant surface able to in situ release the antibiotic for the prevention of post-operative infections. Ciprofloxacin loaded chitosan nanoparticles were obtained using the combination of sulfobutyl ether-beta-cyclodextrin and gamma-cyclodextrin. The resulting nanoparticulate system was characterized by TEM, HPLC and XPS. Particle size was in the range 426-552 nm and zeta potential values were around +30 mV. This antibacterial coating was able to in vitro inhibit two nosocomial Staphylococcus aureus strains growth, with a reduction of about 20 times compared to controls. No impairment in MG63 osteoblast-like cells viability, adhesion and gene expression were detected at 48 h, 7 and 14 days of culture. Overall, the investigated coating represents a promising candidate for the development of a new antibiotic carrier for titanium implants.
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Affiliation(s)
- Monica Mattioli-Belmonte
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy.
| | | | - Concetta Ferretti
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy.
| | - Roberta Iatta
- Department of Veterinary Medicine, University of Bari Aldo Moro, Str. Prov. per Casamassima Km 3, Valenzano (BA), Italy.
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy.
| | - Edmondo Ceci
- Department of Veterinary Medicine, University of Bari Aldo Moro, Str. Prov. per Casamassima Km 3, Valenzano (BA), Italy.
| | - Mirella Falconi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy.
| | - Elvira De Giglio
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy.
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Prudencio A, Stebbins ND, Johnson M, Song M, Langowski BA, Uhrich KE. Polymeric prodrugs of ampicillin as antibacterial coatings. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514528410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel ampicillin prodrug containing two carboxylic acid functionalities was synthesized by reacting ampicillin with acyl chloride in the presence of base. This prodrug was subsequently converted into a poly(anhydride-amide) via solution polymerization. The polymer, which chemically incorporates the ampicillin prodrug into the polymeric backbone, was developed as a film to prevent infections associated with medical devices by controlled, localized release of antimicrobials. The robust polymer coatings exhibiting strong adhesion to stainless steel were produced under elevated temperature and reduced pressure. The in vitro hydrolytic degradation of the polymer into the ampicillin prodrug was measured and the antibacterial activity of polymer-derived coatings was examined using a Gram-positive bacterium, Staphylococcus aureus. Furthermore, the polymer cytotoxicity was screened using fibroblasts. The ampicillin prodrug demonstrated antibacterial activity and the polymer demonstrated no cytotoxic effects on fibroblasts. Based on these results, the biodegradation of the antimicrobial-based poly(anhydride-amide) into the prodrug displays substantial promise as an implant or implant coating to reduce device failure resulting from bacterial infections.
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Affiliation(s)
- Almudena Prudencio
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ, USA
| | - Nicholas D Stebbins
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ, USA
| | - Michelle Johnson
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ, USA
| | - MinJung Song
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ, USA
| | - Bryan A Langowski
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ, USA
| | - Kathryn E Uhrich
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ, USA
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ, USA
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Ninan N, Muthiah M, Bt.Yahaya NA, Park IK, Elain A, Wong TW, Thomas S, Grohens Y. Antibacterial and wound healing analysis of gelatin/zeolite scaffolds. Colloids Surf B Biointerfaces 2014; 115:244-52. [DOI: 10.1016/j.colsurfb.2013.11.048] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/25/2013] [Accepted: 11/26/2013] [Indexed: 11/16/2022]
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