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Chladek G, Kalamarz I, Pakieła W, Barszczewska-Rybarek I, Czuba Z, Mertas A. A Temporary Acrylic Soft Denture Lining Material Enriched with Silver-Releasing Filler-Cytotoxicity, Mechanical and Antifungal Properties. MATERIALS (BASEL, SWITZERLAND) 2024; 17:902. [PMID: 38399153 PMCID: PMC10890124 DOI: 10.3390/ma17040902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024]
Abstract
Colonization of temporary denture soft linings and underlying tissues by yeast-like fungi is an important clinical problem due to the negative influence on the process of prosthetic treatment. Typical hygienic procedures are often insufficient to prevent fungal infections, so in this study, an antimicrobial filler (silver sodium hydrogen zirconium phosphate) was introduced into acrylic soft liner at concentrations of 1, 2, 4, 6, 8 and 10% (w/w). The effect of this modification on antifungal properties against Candida albicans, cytotoxicity, Shore A hardness, tensile strength and tensile bond strength, sorption and solubility was investigated, considering the recommended 30-day period of temporary soft lining use. The most favorable compilation of properties was obtained at a 1 to 6% filler content, for which nearly a total reduction in Candida albicans was registered even after 30 days of sample storing. The tensile and bond strength of these composites was at the desired and stable level and did not differ from the results for the control material. Hardness increased with the increasing concentration in filler but were within the range typical for soft lining materials and their changes during the experiment were similar to the control material. The materials were not cytotoxic and sorption and solubility levels were stable.
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Affiliation(s)
- Grzegorz Chladek
- Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, 18a Konarskiego Str., 41-100 Gliwice, Poland
| | - Igor Kalamarz
- Igor Kalamarz Dental Practice, 6 Kotlarza Str., 40-139 Katowice, Poland;
| | - Wojciech Pakieła
- Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 18a Konarskiego Str., 41-100 Gliwice, Poland;
| | - Izabela Barszczewska-Rybarek
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 9 Str., 44-100 Gliwice, Poland;
| | - Zenon Czuba
- Department of Microbiology and Immunology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana Str., 41-808 Zabrze, Poland; (Z.C.); (A.M.)
| | - Anna Mertas
- Department of Microbiology and Immunology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana Str., 41-808 Zabrze, Poland; (Z.C.); (A.M.)
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Qu C, Rozsa J, Running M, McNamara S, Walsh K. I-GLAD: a new strategy for fabricating antibacterial surfaces. DISCOVER NANO 2024; 19:17. [PMID: 38270785 PMCID: PMC10810768 DOI: 10.1186/s11671-024-03959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
The paper uses inverted glancing angle deposition (I-GLAD) for creating antibacterial surfaces. Antibacterial surfaces are found in nature, such as on insect wings, eyes, and plant leaves. Since the bactericidal mechanism is purely physical for these surfaces, the antimicrobial resistance of bacteria to traditional chemical antibiotics can be overcome. The technical problem is how to mimic, synthesize, and scale up the naturally occurring antibacterial surfaces for practical applications, given the fact that most of those surfaces are composed of three-dimensional hierarchical micro-nano structures. This paper proposes to use I-GLAD as a novel bottom-up nanofabrication technique to scale up bio-inspired nano-structured antibacterial surfaces. Our innovative I-GLAD nanofabrication technique includes traditional GLAD deposition processes alongside the crucial inverting process. Following fabrication, we explore the antibacterial efficacy of I-GLAD surfaces using two types of bacteria: Escherichia coli (E. coli), a gram-negative bacterium, and Staphylococcus aureus (S. aureus), a gram-positive bacterium. Scanning electron microscopy (SEM) shows the small tips and flexible D/P (feature size over period) ratio of I-GLAD nanoneedles, which is required to achieve the desired bactericidal mechanism. Antibacterial properties of the I-GLAD samples are validated by achieving flat growth curves of E. coli and S. aureus, and direct observation under SEM. The paper bridges the knowledge gaps of seeding techniques for GLAD, and the control/optimization of the I-GLAD process to tune the morphologies of the nano-protrusions. I-GLAD surfaces are effective against both gram-negative and gram-positive bacteria, and they have tremendous potentials in hospital settings and daily surfaces.
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Affiliation(s)
- Chuang Qu
- Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY, 40292, USA.
| | - Jesse Rozsa
- Department of Biology, University of Louisville, Louisville, KY, 40292, USA
| | - Mark Running
- Department of Biology, University of Louisville, Louisville, KY, 40292, USA
| | - Shamus McNamara
- Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY, 40292, USA
| | - Kevin Walsh
- Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY, 40292, USA
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Yang JY, Kumar A, Shaikh MO, Huang SH, Chou YN, Yang CC, Hsu CK, Kuo LC, Chuang CH. Biocompatible, Antibacterial, and Stable Deep Eutectic Solvent-Based Ionic Gel Multimodal Sensors for Healthcare Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55244-55257. [PMID: 37991845 DOI: 10.1021/acsami.3c09613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
In this study, we investigated a novel approach to fabricate multifunctional ionic gel sensors by using deep eutectic solvents (DESs) as replacements for water. When two distinct DESs were combined, customizable mechanical and conductive properties were created, resulting in improved performance compared with traditional hydrogel-based strain sensors. DES ionic gels possess superior mechanical properties, transparency, biocompatibility, and antimicrobial properties, making them suitable for a wide range of applications such as flexible electronics, soft robotics, and healthcare. We conducted a comprehensive evaluation of the DES ionic gels, evaluating their performance under extreme temperature conditions (-70 to 80 °C), impressive optical transparency (94%), and biocompatibility. Furthermore, a series of tests were conducted to evaluate the antibacterial performance (Escherichia coli) of the DES ionic gels. Their wide strain (1-400%) and temperature (15-50 °C)-sensing ranges demonstrate the versatility and adaptability of DES ionic gels for diverse sensing requirements. The resulting DES ionic gels were successfully applied in human activity and vital sign monitoring, demonstrating their potential for biointegrated sensing devices and healthcare applications. This study offers valuable insights into the development and optimization of hydrogel sensors, particularly for applications that require environmental stability, biocompatibility, and antibacterial performance, thereby paving the way for future advancements in this field.
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Affiliation(s)
- Jia-Yu Yang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Amit Kumar
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Muhammad Omar Shaikh
- Sustainability Science and Management Program, Tunghai University, Taichung 407224, Taiwan
| | - Shu-Hung Huang
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ying-Nien Chou
- Department of Chemical and Materials Engineering, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan
| | - Chao-Chun Yang
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chao-Kai Hsu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan 70101, Taiwan
| | - Li-Chieh Kuo
- Department of Occupational Therapy, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Medical Device Innovation Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Cheng-Hsin Chuang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- The Center of Excellence for Metabolic Associated Fatty Liver Disease (CEMAFLD), National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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Viola M, Migliorini C, Ziarelli F, Viel S, Cencetti C, Di Risola D, Mosca L, Masuelli L, Matricardi P, Di Meo C. Polyacrylate-Cholesterol Amphiphilic Derivative: Formulation Development and Scale-up for Health Care Applications. J Funct Biomater 2023; 14:482. [PMID: 37754896 PMCID: PMC10532428 DOI: 10.3390/jfb14090482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
The novel amphiphilic polyacrylate grafted with cholesterol moieties, PAAbCH, previously synthesized, was deeply characterized and investigated in the lab and on a pre-industrial scale. Solid-state NMR analysis confirmed the polymer structure, and several water-based pharmaceutical and cosmetic products were developed. In particular, stable oil/water emulsions with vegetable oils, squalene, and ceramides were prepared, as well as hydrophilic medicated films loaded with diclofenac, providing a prolonged drug release. PAAbCH also formed polyelectrolyte hydrogel complexes with chitosan, both at the macro- and nano-scale. The results demonstrate that this polymer has promising potential as an innovative excipient, acting as a solubility enhancer, viscosity enhancer, and emulsifying agent with an easy scale-up transfer process.
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Affiliation(s)
- Marco Viola
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (M.V.); (C.M.); (P.M.)
| | - Claudia Migliorini
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (M.V.); (C.M.); (P.M.)
| | - Fabio Ziarelli
- Aix-Marseille Université, CNRS, Centrale Méditerranée, Fédération Sciences Chimiques Marseille, 13013 Marseille, France;
| | - Stéphane Viel
- Aix-Marseille Université, CNRS, Institut de Chimie Radicalaire, 13013 Marseille, France;
- Institut Universitaire de France, 75005 Paris, France
| | | | - Daniel Di Risola
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy; (D.D.R.); (L.M.)
| | - Luciana Mosca
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy; (D.D.R.); (L.M.)
| | - Laura Masuelli
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy;
| | - Pietro Matricardi
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (M.V.); (C.M.); (P.M.)
| | - Chiara Di Meo
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (M.V.); (C.M.); (P.M.)
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Zhao L, Ling Q, Fan X, Gu H. Self-Healable, Adhesive, Anti-Drying, Freezing-Tolerant, and Transparent Conductive Organohydrogel as Flexible Strain Sensor, Triboelectric Nanogenerator, and Skin Barrier. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40975-40990. [PMID: 37584619 DOI: 10.1021/acsami.3c08052] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Conductive hydrogels have attracted tremendous interest in the construction of flexible strain sensors and triboelectric nanogenerators (TENGs) owing to their good stretchability and adjustable properties. Nevertheless, how to simultaneously achieve high transparency, self-healing, adhesion, antibacterial, anti-freezing, anti-drying, and biocompatibility properties through a simple method remains a challenge. Herein, a transparent, freezing-tolerant, and multifunctional organohydrogel (PAOAM-PDO) as electrode for strain sensors and TENGs was constructed through a free radical polymerization in the 1,3-propanediol (PDO)/water binary solvent system, in which oxide sodium alginate, aminated gelatin, acrylic acid, and AlCl3 were used as raw materials. The obtained PAOAM-PDO exhibited good transparency (>90%), self-healing, adhesiveness, antibacterial property, good conductivity (1.13 S/m), and long-term environmental stability. The introduction of PDO endowed PAOAM-PDO with freezing resistance with a low freezing point of -60 °C, and PAOAM-PDO could serve as a protective skin barrier to prevent frostbite at low temperature. PAOAM-PDO could be assembled as strain sensors to monitor heterogeneous human movements with high strain sensitivity (gauge factor of 7.05, strain = 233%). Meanwhile, PAOAM-PDO could be further fabricated as a TENG with a "sandwich" structure in single electrode mode. Moreover, the resulting TENG achieved electrical outputs with simple hand tapping and served as a self-powered device to light light-emitting diodes. This work displays a feasible strategy to build environment-tolerant and multifunctional organohydrogels, which possess potential applications in the wearable electronics and self-powered devices.
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Affiliation(s)
- Li Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
- College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang 641100, China
| | - Qiangjun Ling
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Xin Fan
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
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Tabatabaei N, Faridi-Majidi R, Boroumand S, Norouz F, Rahmani M, Rezaie F, Fayazbakhsh F, Faridi-Majidi R. Nanofibers in Respiratory Masks: An Alternative to Prevent Pathogen Transmission. IEEE Trans Nanobioscience 2023; 22:685-701. [PMID: 35724284 PMCID: PMC10620960 DOI: 10.1109/tnb.2022.3181745] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Recent global outbreak of COVID-19 has raised serious awareness about our abilities to protect ourselves from hazardous pathogens and volatile organic compounds. Evidence suggests that personal protection equipment such as respiratory masks can radically decrease rates of transmission and infections due to contagious pathogens. To increase filtration efficiency without compromising breathability, application of nanofibers in production of respiratory masks have been proposed. The emergence of nanofibers in the industry has since introduced a next generation of respiratory masks that promises improved filtration efficiency and breathability via nanometric pores and thin fiber thickness. In addition, the surface of nanofibers can be functionalized and enhanced to capture specific particles. In addition to conventional techniques such as melt-blown, respiratory masks by nanofibers have provided an opportunity to prevent pathogen transmission. As the surge in global demand for respiratory masks increases, herein, we reviewed recent advancement of nanofibers as an alternative technique to be used in respiratory mask production.
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Langová D, Córdoba MAM, Sorrechia R, Hoová J, Svoboda Z, Mikulíková R, Correa MA, Pietro RCLR, Márová I. Achyrocline satureioides Hydroalcoholic Extract as a Hypoallergenic Antimicrobial Substitute of Natural Origin for Commonly Used Preservatives in Cosmetic Emulsions. PLANTS (BASEL, SWITZERLAND) 2023; 12:2027. [PMID: 37653944 PMCID: PMC10222649 DOI: 10.3390/plants12102027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 09/02/2023]
Abstract
Achyrocline satureioides is a South American herb used in traditional medicine to treat a wide range of ailments. The healing and antimicrobial effects of this plant have already been covered by many studies, which have confirmed its beneficial effects on human health. In this study, the antimicrobial effect of A. satureioides hydroalcoholic extract against Escherichia coli ATCC10536, Staphylococcus aureus ATCC25923, Staphylococcus epidermidis ATCC12228 and Lactobacillus acidophilus INCQS00076 was determined. The cytotoxicity of the extract was tested on human HaCaT keratinocytes showing very favourable effects on the proliferation and renewal of keratinocytes. According to the results of the HPLC and GC-MS analyses, the lyophilized extract contained only a minimal amount of fragrance allergens. The extract was then used in two cosmetic formulations, and one of them showed a significant synergistic interaction with other cosmetic components. We suggest the use of A.satureioides hydroalcoholic extract as a suitable antimicrobial component of natural origin for cosmetic preparations as a substitute for commonly used preservatives that can cause skin irritation and as a material with its own biological activity.
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Affiliation(s)
- Denisa Langová
- Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology, 612 00 Brno, Czech Republic; (D.L.); (J.H.); (Z.S.); (R.M.)
| | - Maria Angélica Mera Córdoba
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University UNESP, Araraquara 14801-902, São Paulo, Brazil; (M.A.M.C.); (R.S.); (M.A.C.); (R.C.L.R.P.)
| | - Rodrigo Sorrechia
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University UNESP, Araraquara 14801-902, São Paulo, Brazil; (M.A.M.C.); (R.S.); (M.A.C.); (R.C.L.R.P.)
| | - Julie Hoová
- Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology, 612 00 Brno, Czech Republic; (D.L.); (J.H.); (Z.S.); (R.M.)
| | - Zdeněk Svoboda
- Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology, 612 00 Brno, Czech Republic; (D.L.); (J.H.); (Z.S.); (R.M.)
- Research Institute of Brewing and Malting, 614 00 Brno, Czech Republic
| | - Renata Mikulíková
- Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology, 612 00 Brno, Czech Republic; (D.L.); (J.H.); (Z.S.); (R.M.)
| | - Marcos Antonio Correa
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University UNESP, Araraquara 14801-902, São Paulo, Brazil; (M.A.M.C.); (R.S.); (M.A.C.); (R.C.L.R.P.)
| | - Rosemeire Cristina Linhari Rodrigues Pietro
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University UNESP, Araraquara 14801-902, São Paulo, Brazil; (M.A.M.C.); (R.S.); (M.A.C.); (R.C.L.R.P.)
| | - Ivana Márová
- Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology, 612 00 Brno, Czech Republic; (D.L.); (J.H.); (Z.S.); (R.M.)
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Hamdan N, Khodir WKWA, Hamid SA, Nasir MHM, Hamzah AS, Cruz-Maya I, Guarino V. PCL/Gelatin/Graphene Oxide Electrospun Nanofibers: Effect of Surface Functionalization on In Vitro and Antibacterial Response. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:488. [PMID: 36770449 PMCID: PMC9921190 DOI: 10.3390/nano13030488] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/09/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
The emergence of resistance to pathogenic bacteria has resulted from the misuse of antibiotics used in wound treatment. Therefore, nanomaterial-based agents can be used to overcome these limitations. In this study, polycaprolactone (PCL)/gelatin/graphene oxide electrospun nanofibers (PGO) are functionalized via plasma treatment with the monomeric groups diallylamine (PGO-M1), acrylic acid (PGO-M2), and tert-butyl acrylate (PGO-M3) to enhance the action against bacteria cells. The surface functionalization influences the morphology, surface wettability, mechanical properties, and thermal stability of PGO nanofibers. PGO-M1 and PGO-M2 exhibit good antibacterial activity against Staphylococcus aureus and Escherichia coli, whereas PGO-M3 tends to reduce their antibacterial properties compared to PGO nanofibers. The highest proportion of dead bacteria cells is found on the surface of hydrophilic PGO-M1, whereas live cells are colonized on the surface of hydrophobic PGO-M3. Likewise, PGO-M1 shows a good interaction with L929, which is confirmed by the high levels of adhesion and proliferation with respect to the control. All the results confirm that surface functionalization can be strategically used as a tool to engineer PGO nanofibers with controlled antibacterial properties for the fabrication of highly versatile devices suitable for different applications (e.g., health, environmental pollution).
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Affiliation(s)
- Nazirah Hamdan
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Shafida Abd Hamid
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Mohd Hamzah Mohd Nasir
- Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Ahmad Sazali Hamzah
- Institute of Science, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d’Oltremare Pad.20, V.le J.F.Kennedy 54, 80125 Naples, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d’Oltremare Pad.20, V.le J.F.Kennedy 54, 80125 Naples, Italy
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Folliero V, Ricciardi M, Dell’Annunziata F, Pironti C, Galdiero M, Franci G, Motta O, Proto A. Deployment of a Novel Organic Acid Compound Disinfectant against Common Foodborne Pathogens. TOXICS 2022; 10:768. [PMID: 36548601 PMCID: PMC9780819 DOI: 10.3390/toxics10120768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND The disinfection process represents an important activity closely linked to the removal of micro-organisms in common processing systems. Traditional disinfectants are often not sufficient to avoid the spread of food pathogens; therefore, innovative strategies for decontamination are crucial to countering microbial transmission. This study aims to assess the antimicrobial efficiency of tetrapotassium iminodisuccinic acid salt (IDSK) against the most common pathogens present on surfaces, especially in food-borne environments. METHODS IDSK was synthesized from maleic anhydride and characterized through nuclear magnetic resonance (NMR) spectroscopy (both 1H-NMR and 13C-NMR), thermogravimetric analysis (TGA) and Fourier Transform Infrared (FTIR) spectroscopy. The antibacterial activity was performed via the broth microdilution method and time-killing assays against Escherichia coli, Staphylococcus aureus, Salmonella enterica, Enterococcus faecalis and Pseudomonas aeruginosa (IDSK concentration range: 0.5-0.002 M). The biofilm biomass eradicating activity was assessed via a crystal violet (CV) assay. RESULTS The minimum inhibitory concentration (MIC) of IDSK was 0.25 M for all tested strains, exerting bacteriostatic action. IDSK also reduced biofilm biomass in a dose-dependent manner, reaching rates of about 50% eradication at a dose of 0.25 M. The advantages of using this innovative compound are not limited to disinfecting efficiency but also include its high biodegradability and its sustainable synthesis. CONCLUSIONS IDSK could represent an innovative and advantageous disinfectant for food processing and workers' activities, leading to a better quality of food and safer working conditions for the operators.
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Affiliation(s)
- Veronica Folliero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via S. Maria di Costantinopoli, 16, 80138 Naples, Italy
| | - Maria Ricciardi
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, Italy
| | - Federica Dell’Annunziata
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via S. Maria di Costantinopoli, 16, 80138 Naples, Italy
| | - Concetta Pironti
- Department of Medicine Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, Italy
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via S. Maria di Costantinopoli, 16, 80138 Naples, Italy
| | - Gianluigi Franci
- Department of Medicine Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, Italy
| | - Oriana Motta
- Department of Medicine Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, Italy
| | - Antonio Proto
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, Italy
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10
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Tiago G, Cristóvão MB, Marques AP, Huertas R, Merino-Garcia I, Pereira VJ, Crespo JG, Velizarov S. A Study on Biofouling and Cleaning of Anion Exchange Membranes for Reverse Electrodialysis. MEMBRANES 2022; 12:membranes12070697. [PMID: 35877900 PMCID: PMC9316569 DOI: 10.3390/membranes12070697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/03/2022]
Abstract
This study covers the modification, (bio)fouling characterization, use, and cleaning of commercial heterogeneous anion exchange membranes (AEMs) to evaluate their feasibility for reverse electrodialysis (RED) applications. A surface modification with poly (acrylic) acid resulted in an improved monovalent perm-selectivity (decreased sulfate membrane transport rate). Moreover, we evaluated the (bio)fouling potential of the membrane using sodium dodecyl sulfate (SDS), sodium dodecyl benzenesulfonate (SDBS), and Aeromonas hydrophila as model organic foulants and a biofoulant, respectively. A detailed characterization of the AEMs (water contact angle, ion exchange capacity (IEC), scanning electron microscopy (SEM), cyclic voltammetry (CV), and Fourier Transform Infrared (FTIR) spectra) was carried out, verifying that the presence of such foulants reduces IEC and the maximum current obtained by CV. However, only SDS and SDBS affected the contact angle values. Cleaning of the biofouled membranes using a sodium hypochlorite aqueous solution allows for (partially) recovering their initial properties. Furthermore, this work includes a fouling characterization using real surface and sea water matrixes, confirming the presence of several types of fouling microorganisms in natural streams. A lower adhesion of microorganisms (measured in terms of total bacteria counts) was observed for the modified membranes compared to the unmodified ones. Finally, we propose a cleaning strategy to mitigate biofouling in AEMs that could be easily applied in RED systems for an enhanced long-term process performance.
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Affiliation(s)
- Gonçalo Tiago
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (G.T.); (M.B.C.); (R.H.); (J.G.C.)
| | - Maria Beatriz Cristóvão
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (G.T.); (M.B.C.); (R.H.); (J.G.C.)
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (A.P.M.); (V.J.P.)
| | - Ana Paula Marques
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (A.P.M.); (V.J.P.)
| | - Rosa Huertas
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (G.T.); (M.B.C.); (R.H.); (J.G.C.)
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (A.P.M.); (V.J.P.)
| | - Ivan Merino-Garcia
- Departamento de Ingenierías Química y Biomolecular, Universidad de Cantabria, Avda. Los Castros, s/n, 39005 Santander, Spain;
| | - Vanessa Jorge Pereira
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (A.P.M.); (V.J.P.)
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - João Goulão Crespo
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (G.T.); (M.B.C.); (R.H.); (J.G.C.)
| | - Svetlozar Velizarov
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (G.T.); (M.B.C.); (R.H.); (J.G.C.)
- Correspondence:
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11
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NANOCOMPOSITES BASED ON SINGLECOMPONENT AND MULTICOMPONENT POLYMER MATRICES FOR BIOMEDICAL APPLICATIONS. Polym J 2022. [DOI: 10.15407/polymerj.44.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The review is devoted to analysis of the publications in the area of polymers of biomedical applications. Different types of the polymer matrices for drug delivery are analyzed, including polyurethanes, hydroxyacrylates, and multicomponent polymer matrices, which created by method of interpenetrating polymer networks. Particular attention is paid to description of synthesized and investigated nanocomposites based on polyurethane / poly (2-hydroxyethyl methacrylate) polymer matrix and nanooxides modified by biologically active compounds.
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12
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Arkaban H, Barani M, Akbarizadeh MR, Pal Singh Chauhan N, Jadoun S, Dehghani Soltani M, Zarrintaj P. Polyacrylic Acid Nanoplatforms: Antimicrobial, Tissue Engineering, and Cancer Theranostic Applications. Polymers (Basel) 2022; 14:1259. [PMID: 35335590 PMCID: PMC8948866 DOI: 10.3390/polym14061259] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/13/2022] [Accepted: 03/16/2022] [Indexed: 02/01/2023] Open
Abstract
Polyacrylic acid (PAA) is a non-toxic, biocompatible, and biodegradable polymer that gained lots of interest in recent years. PAA nano-derivatives can be obtained by chemical modification of carboxyl groups with superior chemical properties in comparison to unmodified PAA. For example, nano-particles produced from PAA derivatives can be used to deliver drugs due to their stability and biocompatibility. PAA and its nanoconjugates could also be regarded as stimuli-responsive platforms that make them ideal for drug delivery and antimicrobial applications. These properties make PAA a good candidate for conventional and novel drug carrier systems. Here, we started with synthesis approaches, structure characteristics, and other architectures of PAA nanoplatforms. Then, different conjugations of PAA/nanostructures and their potential in various fields of nanomedicine such as antimicrobial, anticancer, imaging, biosensor, and tissue engineering were discussed. Finally, biocompatibility and challenges of PAA nanoplatforms were highlighted. This review will provide fundamental knowledge and current information connected to the PAA nanoplatforms and their applications in biological fields for a broad audience of researchers, engineers, and newcomers. In this light, PAA nanoplatforms could have great potential for the research and development of new nano vaccines and nano drugs in the future.
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Affiliation(s)
- Hassan Arkaban
- Department of Chemistry, University of Isfahan, Isfahan 8174673441, Iran;
| | - Mahmood Barani
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman 7616913555, Iran
| | - Majid Reza Akbarizadeh
- Department of Pediatric, Amir Al Momenin Hospital, Zabol University of Medical Sciences, Zabol 9861663335, Iran
| | - Narendra Pal Singh Chauhan
- Department of Chemistry, Faculty of Science, Bhupal Nobles’s University, Udaipur 313002, Rajasthan, India;
| | - Sapana Jadoun
- Department of Analytical and Inorganic Chemistry, Faculty of Sciences, University of Concepcion, Edmundo Larenas 129, Concepcion 4070371, Chile;
| | | | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, USA;
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13
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Lekhak MM, Patil SS, Deshmukh PV, Lekhak UM, Kumar V, Rastogi A. Genus Barleria L. (Acanthaceae): a review of its taxonomy, cytogenetics, phytochemistry and pharmacological potential. J Pharm Pharmacol 2022; 74:812-842. [PMID: 35199159 DOI: 10.1093/jpp/rgab183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Barleria, a large genus of the Acanthaceae family, comprises more than 300 species with diverse taxonomy, cytogenetics, phytochemistry and pharmacological potential. Therefore, the aim of this review is to critically assess the research on Barleria and provide guidance for future investigations. METHODS The data were obtained from different sources, such as books, theses, journals and some of the websites and internet-based searches, published from 1901 to 2020. Data obtained from PubMed, Google Scholar, ScienceDirect, online electronic journals, SpringerLink, Wiley, etc. have also been used. KEY FINDINGS The species of this genus exhibit considerable medicinal properties. Cytogenetical data are scantily available with chromosome counts available for only 24 species. The most common chromosome number is 2n = 2x = 40. So far, 187 compounds are reported from Barleria species. The active principles, their uses, toxicity and pharmacological effects are discussed. Essential oils, flavones, flavonoids, glycosides, terpenes and terpenoids form the major compounds. SUMMARY It is highly recommended that the pharmacological and economic potential of Barleria species should be exploited and more detailed studies and attention be geared towards its utilization and conservation. In addition, to ensure maximum pharmacological benefits and sustainable use, it is necessary to have empirical information explaining its ethnobotanical values as well as commercial potential.
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Affiliation(s)
- Manoj M Lekhak
- Angiosperm Taxonomy Laboratory, Department of Botany, Shivaji University, Kolhapur, Maharashtra, India
| | - Suraj S Patil
- Angiosperm Taxonomy Laboratory, Department of Botany, Shivaji University, Kolhapur, Maharashtra, India
| | - Pradip V Deshmukh
- Angiosperm Taxonomy Laboratory, Department of Botany, Shivaji University, Kolhapur, Maharashtra, India
| | - Utkarsha M Lekhak
- Department of Biochemistry, The Institute of Science, Dr. Homi Bhabha State University, Mumbai, Maharashtra, India
| | - Vijay Kumar
- Plant Biotechnology Lab, Division of Research and Development, Lovely Professional University, Phagwara, Punjab, India
| | - Anshu Rastogi
- Laboratory of Bioclimatology, Department of Ecology and Environmental Protection, Poznan University of Life Sciences, Poznan, Poland
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14
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Development and characterization of anti-biofilm coatings applied by Non-Equilibrium Atmospheric Plasma on stainless steel. Food Res Int 2022; 152:109891. [PMID: 35181104 DOI: 10.1016/j.foodres.2020.109891] [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] [Received: 07/27/2020] [Revised: 10/15/2020] [Accepted: 11/03/2020] [Indexed: 11/21/2022]
Abstract
Biofilm-mediated microbial persistence of pathogenic and spoilage bacteria is a serious problem in food industries. Due to the difficulty of removing mature biofilms, great efforts are being made to find new strategies to prevent bacterial adherence to surfaces, the first step for biofilm development. In this study, coatings of (3-aminopropyl)triethoxysilane (APTES), tetraethyl orthosilicate (TEOS) and acrylic acid (AA) were applied by Non-Equilibrium Atmospheric Plasma on stainless steel (SS) AISI 316, the SS most commonly used in food industry equipment. Their anti-biofilm activity was assessed against Listeria monocytogenes CECT911 and Escherichia coli CECT515 after incubation at 37 °C. The best results were obtained for L. monocytogenes, with coatings consisting of a base coating of APTES and a functional coating of TEOS (AP10 + TE6) or AA (AP10 + AA6) that reduced biofilm production by 45% and 74%, respectively, when compared with the uncoated SS. These coatings were further characterized, together with a variation of the best one that replaced the acrylic acid with succinic acid (AP10 + SA6). Their anti-biofilm activity was assessed under different incubation conditions, including two strains of L. monocytogenes isolated from processing environments of a meat industry. The coating AP10 + AA6 reduced the biofilm formation by 90% after incubation at 12 °C, a temperature more representative of those commonly found in food processing environments. The morphological and physico-chemical characterization of the selected coatings showed that the coating with the highest anti-biofilm activity (i.e., AP10 + AA6) had lower surface roughness and higher hydrophilicity. This suggests that the formation of a hydration layer prevents the adherence of L. monocytogenes, an effect that seems to be enhanced by low temperature conditions, when the wettability of the strains is increased.
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15
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Meléndez-Ortiz HI, Betancourt-Galindo R, Puente-Urbina B, Sánchez-Orozco JL, Ledezma A. Antimicrobial cotton gauzes modified with poly(acrylic acid-co-maltodextrin) hydrogel using chitosan as crosslinker. Int J Biol Macromol 2022; 198:119-127. [PMID: 34963627 DOI: 10.1016/j.ijbiomac.2021.12.083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 11/05/2022]
Abstract
Cotton gauzes were grafted with a hydrogel of maltodextrin (MD) and poly(acrylic acid) (PAAc) using N-maleyl chitosan as crosslinker to obtain materials with antimicrobial properties. Reaction parameters including monomer, crosslinker, and initiator concentrations were studied. The modification with the copolymer poly(acrylic acid)-co-maltodextrin (PAAc-co-MD) was corroborated by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The grafted gauzes (gauze-g-(PAAc-co-MD)) were able to load vancomycin and inhibit the growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacteria. In addition, the incorporation of chitosan as crosslinker showed a synergistic effect against these bacteria. The prepared gauze-g-(PAAc-co-MD) materials could be used in the biomedical area particularly as antimicrobial wound dressings.
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Affiliation(s)
- H Iván Meléndez-Ortiz
- CONACyT-Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, 25294 Saltillo, Mexico.
| | - Rebeca Betancourt-Galindo
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, 25294 Saltillo, Mexico
| | - Bertha Puente-Urbina
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, 25294 Saltillo, Mexico
| | - Jorge L Sánchez-Orozco
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, 25294 Saltillo, Mexico
| | - Antonio Ledezma
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, 25294 Saltillo, Mexico
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16
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González-Henríquez CM, Rodríguez-Umanzor FE, Alegría-Gómez MN, Terraza-Inostroza CA, Martínez-Campos E, Cue-López R, Sarabia-Vallejos MA, García-Herrera C, Rodríguez-Hernández J. Wrinkling on Stimuli-Responsive Functional Polymer Surfaces as a Promising Strategy for the Preparation of Effective Antibacterial/Antibiofouling Surfaces. Polymers (Basel) 2021; 13:4262. [PMID: 34883766 PMCID: PMC8659726 DOI: 10.3390/polym13234262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/26/2021] [Accepted: 12/02/2021] [Indexed: 12/15/2022] Open
Abstract
Biocompatible smart interfaces play a crucial role in biomedical or tissue engineering applications, where their ability to actively change their conformation or physico-chemical properties permits finely tuning their surface attributes. Polyelectrolytes, such as acrylic acid, are a particular type of smart polymers that present pH responsiveness. This work aims to fabricate stable hydrogel films with reversible pH responsiveness that could spontaneously form wrinkled surface patterns. For this purpose, the photosensitive reaction mixtures were deposited via spin-coating over functionalized glasses. Following vacuum, UV, or either plasma treatments, it is possible to spontaneously form wrinkles, which could increase cell adherence. The pH responsiveness of the material was evaluated, observing an abrupt variation in the film thickness as a function of the environmental pH. Moreover, the presence of the carboxylic acid functional groups at the interface was evidenced by analyzing the adsorption/desorption capacity using methylene blue as a cationic dye model. The results demonstrated that increasing the acrylic acid in the microwrinkled hydrogel effectively improved the adsorption and release capacity and the ability of the carboxylic groups to establish ionic interactions with methylene blue. Finally, the role of the acrylic acid groups and the surface topography (smooth or wrinkled) on the final antibacterial properties were investigated, demonstrating their efficacy against both gram-positive and gram-negative bacteria model strains (E. coli and S. Aureus). According to our findings, microwrinkled hydrogels presented excellent antibacterial properties improving the results obtained for planar (smooth) hydrogels.
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Affiliation(s)
- Carmen M. González-Henríquez
- Departamento de Química, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Universidad Tecnológica Metropolitana, Santiago 7800003, Chile; (F.E.R.-U.); (M.N.A.-G.)
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Santiago 8940000, Chile
| | - Fernando E. Rodríguez-Umanzor
- Departamento de Química, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Universidad Tecnológica Metropolitana, Santiago 7800003, Chile; (F.E.R.-U.); (M.N.A.-G.)
- Programa PhD en Ciencia de Materiales e Ingeniería de Procesos, Universidad Tecnológica Metropolitana, Santiago 8940000, Chile
| | - Matías N. Alegría-Gómez
- Departamento de Química, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Universidad Tecnológica Metropolitana, Santiago 7800003, Chile; (F.E.R.-U.); (M.N.A.-G.)
- Programa PhD en Ciencia de Materiales e Ingeniería de Procesos, Universidad Tecnológica Metropolitana, Santiago 8940000, Chile
| | - Claudio A. Terraza-Inostroza
- Research Laboratory for Organic Polymer (RLOP), Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile;
| | - Enrique Martínez-Campos
- Group of Organic Synthesis and Bioevaluation, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Associated Unit to the ICTP-IQM-CSIC, 28040 Madrid, Spain; (E.M.-C.); (R.C.-L.)
| | - Raquel Cue-López
- Group of Organic Synthesis and Bioevaluation, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Associated Unit to the ICTP-IQM-CSIC, 28040 Madrid, Spain; (E.M.-C.); (R.C.-L.)
| | - Mauricio A. Sarabia-Vallejos
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago 9170022, Chile; (M.A.S.-V.); (C.G.-H.)
| | - Claudio García-Herrera
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago 9170022, Chile; (M.A.S.-V.); (C.G.-H.)
| | - Juan Rodríguez-Hernández
- Polymer Functionalization Group, Departamento de Química Macromolecular Aplicada, Instituto de Ciencia y Tecnología de Polímeros-Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006 Madrid, Spain;
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17
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Peddinti BST, Downs SN, Yan J, Smith SD, Ghiladi RA, Mhetar V, Tocchetto R, Griffiths A, Scholle F, Spontak RJ. Rapid and Repetitive Inactivation of SARS-CoV-2 and Human Coronavirus on Self-Disinfecting Anionic Polymers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003503. [PMID: 34105286 PMCID: PMC7994973 DOI: 10.1002/advs.202003503] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/06/2021] [Indexed: 05/20/2023]
Abstract
While the ongoing COVID-19 pandemic affirms an urgent global need for effective vaccines as second and third infection waves are spreading worldwide and generating new mutant virus strains, it has also revealed the importance of mitigating the transmission of SARS-CoV-2 through the introduction of restrictive social practices. Here, it is demonstrated that an architecturally- and chemically-diverse family of nanostructured anionic polymers yield a rapid and continuous disinfecting alternative to inactivate coronaviruses and prevent their transmission from contact with contaminated surfaces. Operating on a dramatic pH-drop mechanism along the polymer/pathogen interface, polymers of this archetype inactivate the SARS-CoV-2 virus, as well as a human coronavirus surrogate (HCoV-229E), to the minimum detection limit within minutes. Application of these anionic polymers to frequently touched surfaces in medical, educational, and public-transportation facilities, or personal protection equipment, can provide rapid and repetitive protection without detrimental health or environmental complications.
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Affiliation(s)
| | - Sierra N. Downs
- National Emerging Infectious Diseases LaboratoriesBoston University School of MedicineBostonMA02118USA
| | - Jiaqi Yan
- Department of Chemical & Biomolecular EngineeringNorth Carolina State UniversityRaleighNC27695USA
| | - Steven D. Smith
- Corporate Research & DevelopmentThe Procter & Gamble CompanyCincinnatiOH45224USA
| | - Reza A. Ghiladi
- Department of ChemistryNorth Carolina State UniversityRaleighNC27695USA
- Center for Advanced Virus ExperimentationNorth Carolina State UniversityRaleighNC27695USA
| | - Vijay Mhetar
- Kraton Innovation CenterKraton CorporationHoustonTX77084USA
| | | | - Anthony Griffiths
- National Emerging Infectious Diseases LaboratoriesBoston University School of MedicineBostonMA02118USA
| | - Frank Scholle
- Center for Advanced Virus ExperimentationNorth Carolina State UniversityRaleighNC27695USA
- Department of Biological SciencesNorth Carolina State UniversityRaleighNC27695USA
| | - Richard J. Spontak
- Department of Chemical & Biomolecular EngineeringNorth Carolina State UniversityRaleighNC27695USA
- Center for Advanced Virus ExperimentationNorth Carolina State UniversityRaleighNC27695USA
- Department of Materials Science & EngineeringNorth Carolina State UniversityRaleighNC27695USA
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18
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Majhi R, Majhi RK, Garhnayak L, Patro TK, Dhal A, Kumar S, Guha P, Goswami L, Goswami C. Comparative evaluation of surface-modified zirconia for the growth of bone cells and early osseointegration. J Prosthet Dent 2021; 126:92.e1-92.e8. [PMID: 34049698 DOI: 10.1016/j.prosdent.2021.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 11/19/2022]
Abstract
STATEMENT OF PROBLEM Rapid osseointegration between implant and bone tissue for early loading of a prosthesis with sufficient primary stability depends on the surface characteristics of the implant. The development and characterization of suitable surface coatings on dental implants is a major challenge. PURPOSE The purpose of this in vitro study was to evaluate and compare the osteogenic potential and cytotoxicity of unmodified zirconia, acid-etched zirconia, bioactive glass-coated zirconia, and tamarind kernel polysaccharide with hydrophilic acrylic acid (TKP-AA) hydrogel-coated zirconia. MATERIAL AND METHODS Thirty-six disks each of unmodified zirconia, acid-etched, 45S5 bioactive glass-coated, and TKP-AA hydrogel-coated zirconia were evaluated for osteogenic potential and cytotoxic effect by using human osteoblast Saos-2 cells. The surface topography of the disks and the morphology of the cells grown on these surfaces were examined by scanning electron microscopy (n=3). The cell attachment was evaluated by confocal imaging (n=3). The cytotoxic effect was evaluated by cell viability assay (n=9). Osteoblast maturation was assessed by alkaline phosphatase assay (n=9) and cell mineralization by alizarin red staining (n=9). ANOVA and Bonferroni multiple comparison post hoc tests were used to evaluate the statistical significance of the intergroup differences in these characteristics (α=.05). RESULTS The surface modifications resulted in distinct changes in the surface morphology of zirconia disks and the growth of Saos-2 cells. Zirconia disks coated with TKP-AA promoted higher proliferation of osteoblasts compared with unmodified disks (P<.001). Similarly, the surface modifications significantly increased the differentiation of mesenchymal stem cells to osteoblasts as compared with uncoated zirconia (P<.001). However, the rate of differentiation to osteoblasts was similar among the surface modifications. Acid-etched and TKP-AA-coated disks promoted mineralization of osteoblasts to the same extent, except bioactive glass coating, which significantly increased the rate of mineralization (P<.001). CONCLUSIONS Surface modification of zirconia by acid etching and coating with Bioglass or TKP-AA hydrogel resulted in the improved growth and differentiation of osteoblasts. TKP-AA hydrogel coating promoted the proliferation of osteoblasts, whereas Bioglass coating showed better mineralization. TKP-AA hydrogel coating is a promising candidate for improving the osseointegration of dental implants that warrants further investigation.
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Affiliation(s)
- Rashmita Majhi
- Master in Dental Surgery, Department of Prosthodontics, SCB Dental College and Hospital, Cuttack, Odisha, India
| | - Rakesh Kumar Majhi
- Postdoctoral Researcher, School of Biological Sciences, National Institute of Science Education and Research, Jatni, Bhubaneswar, Odisha, India
| | - Lokanath Garhnayak
- Associate Professor, Department of Prosthodontics, SCB Dental College and Hospital, Cuttack, Odisha, India
| | - Tapan Kumar Patro
- Professor and Head of Department, Department of Prosthodontics, SCB Dental College and Hospital, Cuttack, Odisha, India
| | - Angurbala Dhal
- Associate Professor, Department of Prosthodontics, SCB Dental College and Hospital, Cuttack, Odisha, India
| | - Satish Kumar
- Research Fellow, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, Odisha, India
| | - Puspendu Guha
- Postdoctoral Researcher, Institute of Physics, Sachivalaya Marg, Bhubaneswar, India
| | - Luna Goswami
- Associate Professor, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, Odisha, India; Associate Professor, School of Chemical Technology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, Odisha, India
| | - Chandan Goswami
- Associate Professor, School of Biological Sciences, National Institute of Science Education and Research, Jatni, Bhubaneswar, Odisha, India; Associate Professor, Homi Bhabha National Institute, Training School Complex, Mumbai, India.
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19
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Juárez-Méndez ME, Lozano-Navarro JI, Velasco-Santos C, Pérez-Sánchez JF, Zapién-Castillo S, Del Angel-Moxica IE, Melo-Banda JA, Tijerina-Ramos BI, Díaz-Zavala NP. Effect of the Melicoccus bijugatus leaf and fruit extracts and acidic solvents on the antimicrobial properties of chitosan-starch films. J Appl Microbiol 2021; 131:1162-1176. [PMID: 33547847 DOI: 10.1111/jam.15025] [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: 10/25/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/01/2022]
Abstract
AIM Analysing the antimicrobial activity-against food-borne micro-organisms-of modified chitosan-starch films using formic and acetic acid as chitosan solvents and Melicoccus bijugatus leaves and fruit extracts. METHODS AND RESULTS The films' antimicrobial activity against mesophilic aerobic bacteria, total coliform and fungi were also analysed, in accordance with the Mexican Official Norms (NOM-092-SSA1-1994, NOM-111-SSA1-1994 and NOM-113-SSA1-1994). The pH values of the films and extracts were measured, and the volatile compounds of the extracts and two films were determined by Gas Chromatography-Mass Spectrometry (GC-MS) considering the relationship among the type of compounds, extracts concentration, films' pH and the antimicrobial activity against bacteria and fungi. The best results are obtained by films with formic acid and 10% (v/v) of leaf and fruit extracts, in comparison with untreated chitosan-starch films. CONCLUSIONS The extracts' compounds improved the films' antimicrobial capacity and inhibited the growth of micro-organisms with no previous sterilization required. It is correlated to the pH of the media, the combination of solvent/extract used and its concentration. SIGNIFICANCE AND IMPACT OF THE STUDY This is one of the few researches where the antimicrobial activity of M. bijugatus extracts is studied. It was found that the presence of these extracts is capable of improving the antimicrobial activities of chitosan-starch films. The performance of the modified films suggests their potential application as novel food packaging materials and encourages further research.
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Affiliation(s)
- M E Juárez-Méndez
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
| | - J I Lozano-Navarro
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico.,Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - C Velasco-Santos
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México-Instituto Tecnológico de Querétaro, Querétaro, Mexico
| | - J F Pérez-Sánchez
- Unidad de Posgrado y Educación Continua, Facultad de Arquitectura, Diseño y Urbanismo, Universidad Autónoma de Tamaulipas Campus Sur, Domicilio conocido, Centro Universitario s/n, Universidad Sur, Tampico, Mexico
| | - S Zapién-Castillo
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
| | - I E Del Angel-Moxica
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
| | - J A Melo-Banda
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
| | - B I Tijerina-Ramos
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
| | - N P Díaz-Zavala
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica, Prolongación Bahía de Aldair, Parque de la Pequeña y Mediana Industria, Altamira, Mexico
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20
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Major R, Kopernik M, Kuźmińska A, Imbir G, Plutecka H, Pomorska M, Ciach T, Lackner JM. In vitro haemocompatibility assessment of acrylic acid deposited on solid, polyurethane substrate. Colloids Surf B Biointerfaces 2021; 199:111562. [PMID: 33434879 DOI: 10.1016/j.colsurfb.2021.111562] [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: 10/29/2020] [Revised: 12/21/2020] [Accepted: 01/02/2021] [Indexed: 11/29/2022]
Abstract
The main purpose of the work was to assess the haemocompatible properties of polyurethane discs with a modified surface dedicated to cardiovascular system regeneration. They were coated with acrylic acid-based material to inhibit the activation of the blood coagulation cascade. This coating improved the wettability of the material, leading to the prevention of protein adsorption on the surface. The blood-material interaction was analyzed in dynamic conditions with a specially designed tester, which helps to control blood-material interaction under high shear stress conditions. The corresponding numerical model of the tester was also developed by finite volume method (FVM). The 3D FVM model allows the determination of shear stresses applying different flow and boundary conditions representing blood-material interactions. The haemocompatibility analyses were performed through in vitro tests using a blood flow simulator. They revealed a low probability of activation of blood coagulation and low leukocyte activation. The original mechanical set-up to test the blood-material interaction helped to prove that acrylic acid-based coatings expressed good haemocompatible properties.
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Affiliation(s)
- Roman Major
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, Cracow, Poland
| | - Magdalena Kopernik
- AGH University of Science and Technology, 30 Mickiewicza Street, 30-059 Cracow, Poland.
| | - Aleksandra Kuźmińska
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, 1 Waryńskiego Street, 00-645 Warsaw, Poland
| | - Gabriela Imbir
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, Cracow, Poland
| | - Hanna Plutecka
- Department of Internal Medicine, Jagiellonian University Medical College, 7 Kopernika Street, 31-066 Cracow, Poland
| | - Małgorzata Pomorska
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, Cracow, Poland
| | - Tomasz Ciach
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, 1 Waryńskiego Street, 00-645 Warsaw, Poland
| | - Juergen Markus Lackner
- Joanneum Research Forschungsges mbH, Institute of Surface Technologies and Photonics, Functional Surfaces, Leobner Strasse 94, A-8712 Niklasdorf, Austria
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21
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Rattanakawin P, Yoshimoto K, Hikima Y, Chandra A, Hayakawa T, Tosaka M, Yamago S, Ohshima M. Highly Ordered Nanocellular Polymeric Foams Generated by UV-Induced Chemical Foaming. ACS Macro Lett 2020; 9:1433-1438. [PMID: 35653659 DOI: 10.1021/acsmacrolett.0c00475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nanocellular polymer foams have shown significant potential for industrial applications because of their superior thermal, mechanical, and optical properties. Some of these properties may be further improved by enhancing the ordering of cell structures. However, it is challenging for conventional foaming methods to control both the cell size and ordering at the nanoscale. Here, we show an innovative method to produce highly ordered nanocellular polymer foams by incorporating the self-assembly of an asymmetric diblock copolymer with the UV-induced chemical foaming technique. The minor domains are designed to generate a gaseous compound from the partial cleavage of the functional group. It is demonstrated that the gas-producing reaction can be accelerated at a temperature low enough to prevent melting of the whole self-assembled template, by mixing a small amount of photoacid generator into the copolymer, followed by UV irradiation. The result is the production of polymer foams with the nanoscale cells highly aligned to the self-assembled domains.
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Affiliation(s)
| | - Kenji Yoshimoto
- Department of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yuta Hikima
- Department of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Alvin Chandra
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Teruaki Hayakawa
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Masatoshi Tosaka
- Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan
| | - Masahiro Ohshima
- Department of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan
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22
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Huang H, Shan K, Liu J, Tao X, Periyasamy S, Durairaj S, Jiang Z, Jacob JA. Synthesis, optimization and characterization of silver nanoparticles using the catkin extract of Piper longum for bactericidal effect against food-borne pathogens via conventional and mathematical approaches. Bioorg Chem 2020; 103:104230. [PMID: 32916540 PMCID: PMC7449118 DOI: 10.1016/j.bioorg.2020.104230] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/03/2020] [Accepted: 08/08/2020] [Indexed: 02/06/2023]
Abstract
Inspired with an increasing environmental awareness, we performed an eco-friendly amenable process for the synthesis of silver nanoparticles (AgNPs) using the catkins of Piper longum as an alternative approach with the existing methods of using plant extracts. The fabrication of nanoparticles occurred within 10 min. This was initially observed by colour change of the solution. UV-visible spectroscopic studies (UV-Vis) were performed for further confirmation. The analysis elucidated that the surface plasmon resonance (SPR) was specifically corresponding to AgNPs. Fourier transform infrared spectrophotometry (FTIR) studies indicated that polyphenols could possibly be the encapsulating agents. The size and shape of the nanoparticles was analysed using Transmission electron microscopy (TEM). The nanoparticles were predominant spheres ranging between 10 and 42 nm at two different scales. The formation of elemental silver was confirmed further by X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD). GC-MS analysis was used to identify the possible encapsulates on the nanoparticles. The antibacterial effect of the biosynthesized AgNPs was tested against two gram-positive (Bacillus cereus and Staphylococcus aureus), and five gram-negative (Escherichia coli, Proteus mirabilis, Klebsiella pneumoniae, Pseudomonas aeruginosa and Salmonella typhi) bacteria. Outcomes of the study suggest that these pathogens were susceptible to the AgNPs. This is the first ever international report on correlating the antibacterial effect of silver nanoparticles using mathematical modelling with a conventional antimicrobial assay. The results indicate that nanoparticles of silver synthesized using catkin extract of P. longum can be exploited towards the development of potential antibacterial agents.
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Affiliation(s)
- Hui Huang
- Department of Respiratory Diseases, Kunshan Affiliated Hospital of Nanjing University of Chinese Medicine, Kunshan 215300, China
| | - Kuizhong Shan
- Department of Oncology, The Second People's Hospital of Kunshan, Kunshan 215300, China
| | - Jingbing Liu
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
| | - Xiaoxin Tao
- Department of Oncology, Liyang People's Hospital, Liyang 213300, China
| | - Sivalingam Periyasamy
- PG and Research Department of Microbiology, Jamal Mohamed College, Khajanagar, Tiruchirappalli, Tamil Nadu 620020, India
| | - Siva Durairaj
- PG & Research Department of Biotechnology, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli, Tamil Nadu 620005, India
| | - Ziyu Jiang
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China.
| | - Joe Antony Jacob
- Nanosynthesis Unit, Nanome Consulting, Salem, Tamil Nadu 636008, India.
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23
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GC-MS-Based Metabolomics Analysis of Prawn Shell Waste Co-Fermentation by Lactobacillus plantarum and Bacillus subtilis. POLYSACCHARIDES 2020. [DOI: 10.3390/polysaccharides1010004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
GC-MS-based metabolomics were used to investigate metabolic changes in prawn shell waste during fermentation. Microbial strains Lactobacillus plantarum and Bacillus subtilis were co-fermented in a shake flask comprising of 5% (w/v) prawn shell waste and 20% (w/v) glucose as a carbon source. Analysis of the prawn shell waste fermentation showed a total of 376 metabolites detected in the culture supernatant, including 14 amino acids, 106 organic acids, and 90 antimicrobial molecules. Results show that the liquid fraction of the co-fermentation is promising for harvesting valuable metabolites for probiotics application.
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24
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Kamali S, Arefinia R. Effect of PAAT as an Environmentally Friendly Terpolymer on the Scale Inhibition of CaCO3 in Artificial Seawater: Chemical and Electrochemical Study. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05943] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sepide Kamali
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Reza Arefinia
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
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25
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Pino‐Ramos VH, Cedillo G, López‐Barriguete E, Bucio E. Comonomer effect: Switching the lower critical solution temperature to upper critical solution temperature in thermo‐pH sensitive binary graft copolymers. J Appl Polym Sci 2019. [DOI: 10.1002/app.48170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Victor H. Pino‐Ramos
- Depto. de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito ExteriorCiudad Universitaria CDMX 04510 Mexico
| | - Gerardo Cedillo
- Instituto de Investigación en MaterialesUniversidad Nacional Autónoma de México, Avenida Universidad, Ciudad Universitaria CDMX 04510 Mexico
| | - Eduardo López‐Barriguete
- Depto. de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito ExteriorCiudad Universitaria CDMX 04510 Mexico
| | - Emilio Bucio
- Depto. de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito ExteriorCiudad Universitaria CDMX 04510 Mexico
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26
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Farag RK, Labena A, Fakhry SH, Safwat G, Diab A, Atta AM. Antimicrobial Activity of Hybrids Terpolymers Based on Magnetite Hydrogel Nanocomposites. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3604. [PMID: 31684135 PMCID: PMC6862480 DOI: 10.3390/ma12213604] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 10/31/2019] [Accepted: 10/31/2019] [Indexed: 12/26/2022]
Abstract
In the past few years, the development of hydrogel properties has led to the emergence of nanocomposite hydrogels that have unique properties that allow them to be used in various different fields and applications such as drug delivery, adsorption soil containing, tissue engineering, wound dressing, and especially antimicrobial applications. Thus, this study was conducted in order to fabricate a novel crosslinked terpolymer nanocomposite hydrogel using the free radical copolymerization method based on the usage of 2-acrylamido-2-methylpropane sulfonic acid (AMPS), acrylamide (AAm), acrylonitrile (AN), and acrylic acid (AA) monomers and iron oxide (Fe3O4) magnetic nanoparticles and using benzoyl peroxide as an initiator and ethylene glycol dimethacrylate (EGDMA) as a crosslinker. The structure of the synthesized composite was confirmed using Fourier transform infrared (FTIR) spectroscopy and x-ray powder diffraction (XRD) measurements. Furthermore, the surface morphology and the magnetic nanoparticle distributions were determined by scanning electron microscopy (SEM) measurement. In addition, the swelling capacity of the hydrogel nanocomposite was measured using the swelling test. Lastly, the efficiency of the produced composite was evaluated as an antimicrobial agent for Gram-positive and Gram-negative bacterial strains and a fungal strain.
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Affiliation(s)
- Reem K Farag
- Petroleum Application Department, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo 11727, Egypt.
| | - Ahmed Labena
- Petroleum Application Department, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo 11727, Egypt.
| | - Sahar H Fakhry
- Faculty of Biotechnology, October University for Modern Science and Arts, 26 July Mehwar Road intersection with Wahat Road, 6th October City P.O. Box 2511, Egypt.
| | - Gehan Safwat
- Faculty of Biotechnology, October University for Modern Science and Arts, 26 July Mehwar Road intersection with Wahat Road, 6th October City P.O. Box 2511, Egypt.
| | - Ayman Diab
- Faculty of Biotechnology, October University for Modern Science and Arts, 26 July Mehwar Road intersection with Wahat Road, 6th October City P.O. Box 2511, Egypt.
| | - Ayman M Atta
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
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27
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Cheng J, Xu M, Cheng P, Zhang W, Li N, Wang Y, Yang J, Liang K, Li P, Yu H, Qiu X. Metal ions ‘sewing’ isoporous membranes with polystyrene-block-poly (acrylic acid) block copolymer. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.05.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Poly(methacrylic acid)-modified medical cotton gauzes with antimicrobial and drug delivery properties for their use as wound dressings. Carbohydr Polym 2019; 205:203-210. [DOI: 10.1016/j.carbpol.2018.10.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/03/2018] [Accepted: 10/05/2018] [Indexed: 12/21/2022]
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29
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De la Garza D, De Santiago F, Materon L, Chipara M, Alcoutlabi M. Fabrication and characterization of centrifugally spun poly(acrylic acid) nanofibers. J Appl Polym Sci 2019. [DOI: 10.1002/app.47480] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- David De la Garza
- Department of Mechanical Engineering University of Texas Rio Grande Valley Edinburg Texas 78539
| | - Francisco De Santiago
- Department of Mechanical Engineering University of Texas Rio Grande Valley Edinburg Texas 78539
| | - Luis Materon
- Department of Biology University of Texas Rio Grande Valley Edinburg Texas 78539
| | - Mircea Chipara
- Department of Physics and Astronomy University of Texas Rio Grande Valley Edinburg Texas 78539
| | - Mataz Alcoutlabi
- Department of Mechanical Engineering University of Texas Rio Grande Valley Edinburg Texas 78539
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30
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Díez B, Amariei G, Rosal R. Electrospun Composite Membranes for Fouling and Biofouling Control. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Berta Díez
- Department of Chemical Engineering, University of Alcalá, E-28871 Alcalá de Henares, Madrid, Spain
| | - Georgiana Amariei
- Department of Chemical Engineering, University of Alcalá, E-28871 Alcalá de Henares, Madrid, Spain
| | - Roberto Rosal
- Department of Chemical Engineering, University of Alcalá, E-28871 Alcalá de Henares, Madrid, Spain
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31
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Garcia C, Gallardo A, López D, Elvira C, Azzahti A, Lopez-Martinez E, Cortajarena AL, González-Henríquez CM, Sarabia-Vallejos MA, Rodríguez-Hernández J. Smart pH-Responsive Antimicrobial Hydrogel Scaffolds Prepared by Additive Manufacturing. ACS APPLIED BIO MATERIALS 2018; 1:1337-1347. [DOI: 10.1021/acsabm.8b00297] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Carolina Garcia
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Alberto Gallardo
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Daniel López
- Macromolecular Engineering Group (MacroEng), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Carlos Elvira
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Asma Azzahti
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Elena Lopez-Martinez
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), 20014 Donostia-San Sebastian, Spain
| | | | - Carmen M. González-Henríquez
- Universidad Tecnológica Metropolitana, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Departamento de Química, P.O. Box 9845, Correo 21, 7800003, Santiago, Chile
| | - Mauricio A. Sarabia-Vallejos
- Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Departamento de Ingeniería Estructural y Geotecnia, 3 Departamento de Química, P.O. Box 306, Correo 22, 7820436, Santiago, Chile
| | - Juan Rodríguez-Hernández
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain
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32
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Park JK, Zhang J, Roy R, Ge S, Hustad PD. Polyelectrolyte multilayer-like films from layer-by-layer processing of protected polyampholytic block copolymers. Chem Commun (Camb) 2018; 54:9478-9481. [PMID: 30087955 DOI: 10.1039/c8cc04492a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Polyelectrolyte multilayer films (PEMs) are conventionally prepared by a layer-by-layer (LbL) deposition of alternating polycation and polyanion solutions. We introduce herein a block copolymer (BCP) approach employing a BCP with an H-bond acceptor block and a protected H-donor block as a masked polyampholyte to form new types of PEMs.
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Affiliation(s)
- Jong Keun Park
- Dow Electronic Materials, 455 Forest St., Marlborough, Massachusetts 01752, USA
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33
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Amariei G, Kokol V, Boltes K, Letón P, Rosal R. Incorporation of antimicrobial peptides on electrospun nanofibres for biomedical applications. RSC Adv 2018; 8:28013-28023. [PMID: 35542741 PMCID: PMC9083935 DOI: 10.1039/c8ra03861a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 07/31/2018] [Indexed: 12/26/2022] Open
Abstract
The aim of this work was to immobilize antimicrobial peptides onto a fibrous scaffold to create functional wound dressings. The scaffold was produced by electrospinning from a mixture of the water soluble polymers poly(acrylic acid) and poly(vinyl alcohol) and subsequently heat cured at 140 °C to produce a stable material with fibre diameter below micron size. The peptides were incorporated into the negatively charged scaffold by electrostatic interaction. The best results were obtained for lysozyme impregnated at pH 7, which rendered a loading of up to 3.0 × 10-4 mmol mg-1. The dressings were characterized using SEM, ATR-FTIR, elemental analysis, ζ-potential and confocal microscopy using fluorescamine as an amine-reactive probe. The dressings preserved their fibrous structure after impregnation and peptides were distributed homogeneously throughout the fibrous network. The antibacterial activity was assessed by solid agar diffusion tests and growth inhibition in liquid cultures using Staphylococcus aureus, a pathogenic strain generally found in infected wounds. The antibacterial activity caused clear halo inhibition zones for lysozyme-loaded dressings and a 4-fold decrease in S. aureus viable colonies after two weeks of contact of dressings with bacterial liquid cultures. The release profile in different media showed sustained release in acidic environments, and a rapid discharge at high pH values. The incorporation of lysozyme resulted in dressing surfaces essentially free of microbial growth after 14 days of contact with bacteria at pH 7.4 attributed to the peptide that remained attached to the dressing surface.
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Affiliation(s)
- Georgiana Amariei
- Department of Chemical Engineering, University of Alcalá E-28871 Alcalá de Henares Madrid Spain +34 918855088 +34 918856395
| | - Vanja Kokol
- Institute of Engineering Materials and Design, University of Maribor SI-2000 Maribor Slovenia
| | - Karina Boltes
- Department of Chemical Engineering, University of Alcalá E-28871 Alcalá de Henares Madrid Spain +34 918855088 +34 918856395
| | - Pedro Letón
- Department of Chemical Engineering, University of Alcalá E-28871 Alcalá de Henares Madrid Spain +34 918855088 +34 918856395
| | - Roberto Rosal
- Department of Chemical Engineering, University of Alcalá E-28871 Alcalá de Henares Madrid Spain +34 918855088 +34 918856395
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34
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Marquardt F, Stöcker C, Gartzen R, Heine E, Keul H, Möller M. Novel Antibacterial Polyglycidols: Relationship between Structure and Properties. Polymers (Basel) 2018; 10:E96. [PMID: 30966132 PMCID: PMC6414948 DOI: 10.3390/polym10010096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial polymers are an attractive alternative to low molecular weight biocides, because they are non-volatile, chemically stable, and can be used as non-releasing additives. Polymers with pendant quaternary ammonium groups and hydrophobic chains exhibit antimicrobial properties due to the electrostatic interaction between polymer and cell wall, and the membrane disruptive capabilities of the hydrophobic moiety. Herein, the synthesis of cationic⁻hydrophobic polyglycidols with varying structures by post-polymerization modification is presented. The antimicrobial properties of the prepared polyglycidols against E. coli and S. aureus are examined. Polyglycidol with statistically distributed cationic and hydrophobic groups (cationic⁻hydrophobic balance of 1:1) is compared to (i) polyglycidol with a hydrophilic modification at the cationic functionality; (ii) polyglycidol with both-cationic and hydrophobic groups-at every repeating unit; and (iii) polyglycidol with a cationic⁻hydrophobic balance of 1:2. A relationship between structure and properties is presented.
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Affiliation(s)
- Fabian Marquardt
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
| | - Cornelia Stöcker
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
| | - Rita Gartzen
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
| | - Elisabeth Heine
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
| | - Helmut Keul
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
| | - Martin Möller
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany.
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35
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Vargas-Alfredo N, Martínez-Campos E, Santos-Coquillat A, Dorronsoro A, Cortajarena AL, Del Campo A, Rodríguez-Hernández J. Fabrication of biocompatible and efficient antimicrobial porous polymer surfaces by the Breath Figures approach. J Colloid Interface Sci 2017; 513:820-830. [PMID: 29222981 DOI: 10.1016/j.jcis.2017.11.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 10/18/2022]
Abstract
We designed and fabricated highly efficient and selective antibacterial substrates, i.e. surface non-cytotoxic against mammalian cells but exhibiting strong antibacterial activity. For that purpose, microporous substrates (pore sizes in the range of 3-5 μm) were fabricated using the Breath Figures approach (BFs). These substrates have additionally a defined chemical composition in the pore cavity (herein either a poly(acrylic acid) or the antimicrobial peptide Nisin) while the composition of the rest of the surface is identical to the polymer matrix. As a result, considering the differences in size of bacteria (1-4 μm) in comparison to mammalian cells (above 10 µm) the bacteria were able to enter in contact with the inner part of the pores where the antimicrobial functionality has been placed. On the opposite, mammalian cells remain in contact with the top surface thus preventing cytotoxic effects and enhancing the biocompatibility of the substrates. The resulting antimicrobial surfaces were exposed to Staphylococcus aureus as a model bacteria and murine endothelial C166-GFP cells. Superior antibacterial performance while maintaining an excellent biocompatibility was obtained by those surfaces prepared using PAA while no evidence of significant antibacterial activity was observed at those surfaces prepared using Nisin.
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Affiliation(s)
- Nelson Vargas-Alfredo
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain
| | - Enrique Martínez-Campos
- Tissue Engineering Group (TEG), Instituto de Estudios Biofuncionales (IEB), Universidad Complutense de Madrid (UCM), Associated Unit to the Institute of Polymer Science and Technology (CSIC), Paseo Juan XXIII, N°1, 28040, Spain
| | - Ana Santos-Coquillat
- Tissue Engineering Group (TEG), Instituto de Estudios Biofuncionales (IEB), Universidad Complutense de Madrid (UCM), Associated Unit to the Institute of Polymer Science and Technology (CSIC), Paseo Juan XXIII, N°1, 28040, Spain
| | - Ane Dorronsoro
- CIC biomaGUNE, Parque Tecnológico de San Sebastián, Paseo Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Aitziber L Cortajarena
- CIC biomaGUNE, Parque Tecnológico de San Sebastián, Paseo Miramón 182, 20014 Donostia-San Sebastián, Spain; Ikerbasque, Basque Foundation for Science, Mª Díaz de Haro 3, 48013 Bilbao, Spain
| | - Adolfo Del Campo
- Instituto de Cerámica y Vidrio (ICV-CSIC), C/Kelsen 5, 28049 Madrid, Spain
| | - Juan Rodríguez-Hernández
- Polymer Functionalization Group (FUPOL), Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
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Sukriti, Kaith B, Jindal R, Kumari M, Kaur M. Biodegradable-stimuli sensitive xanthan gum based hydrogel: Evaluation of antibacterial activity and controlled agro-chemical release. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.08.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Vargas-Alfredo N, Dorronsoro A, Cortajarena AL, Rodríguez-Hernández J. Antimicrobial 3D Porous Scaffolds Prepared by Additive Manufacturing and Breath Figures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37454-37462. [PMID: 28934545 DOI: 10.1021/acsami.7b11947] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We describe herein a novel strategy for the fabrication of efficient 3D printed antibacterial scaffolds. For this purpose, both the surface topography as well as the chemical composition of 3D scaffolds fabricated by additive manufacturing were modified. The scaffolds were fabricated by fused deposition modeling (FDM) using high-impact polystyrene (HIPS) filaments. The surface of the objects was then topographically modified providing materials with porous surfaces by means of the Breath Figures approach. The strategy involves the immersion of the scaffold in a polymer solution during a precise period of time. This approach permitted the modification of the pore size varying the immersion time as well as the solution concentration. Moreover, by using polymer blend solutions of polystyrene and polystyrene-b-poly(acrylic acid) (PS23-b-PAA18) and a quaternized polystyrene-b-poly(dimethylaminoethyl methacrylate) (PS42-b-PDMAEMAQ17), the scaffolds were simultaneously chemically modified. The surfaces were characterized by scanning electron microscopy and infrared spectroscopy. Finally, the biological response toward bacteria was explored. Porous surfaces prepared using quaternized PDMAEMA as well as those prepared using PAA confer antimicrobial activity to the films, i.e., were able to kill on contact Staphylococcus aureus employed as model bacteria.
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Affiliation(s)
- Nelson Vargas-Alfredo
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC) , C/Juan de la Cierva 3, 28006 Madrid, Spain
| | - Ane Dorronsoro
- CIC biomaGUNE , Parque Tecnológico de San Sebastián, Paseo Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Aitziber L Cortajarena
- CIC biomaGUNE , Parque Tecnológico de San Sebastián, Paseo Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science , Ma. Díaz de Haro 3, 48013 Bilbao, Spain
| | - Juan Rodríguez-Hernández
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC) , C/Juan de la Cierva 3, 28006 Madrid, Spain
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Saraei M, Zarrini G, Esmati M, Ahmadzadeh L. Novel functionalized monomers based on kojic acid: snythesis, characterization, polymerization and evalution of antimicrobial activity. Des Monomers Polym 2016; 20:325-331. [PMID: 29491803 PMCID: PMC5784866 DOI: 10.1080/15685551.2016.1259832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 10/28/2016] [Indexed: 11/21/2022] Open
Abstract
Two novel acrylate monomers, [5-(benzyloxy)-4-oxo-4H-pyran-2-yl]methyl acrylate and {1-[(5-(benzyloxy)-4-oxo-4H-pyran-2-yl)methyl]-1,2,3-triazol-4-yl}methyl acrylate were synthesized by the reaction of 5-benzyloxy-2-(hydroxymethyl)-4H-pyran-4-one and 5-(benzyloxy)-2-{[4-(hydroxymethyl)-1,2,3-triazol-1-yl]methyl}-4H-pyran-4-one with acryloyl chloride in the presence of triethylamine, respectively. These monomers were polymerized using 2,2′-azobisisobutyronitrile (AIBN) as the initiator in N,N-dimethylformamide:14-dioxane (10:1) solution. The thermal behavior of the polymers was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The synthesized compounds were evaluated for their antibacterial and antifungal activites aganist bacteria and fungi using the disk diffusion method. The results indicated that some of these compounds demonstrated moderate to good antibacterial and antifungal activities.
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Affiliation(s)
- Mahnaz Saraei
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Gholamreza Zarrini
- Faculty of Natural Sciences, Department of Biology, University of Tabriz, Tabriz, Iran
| | - Moshgan Esmati
- Department of Chemistry, Payame Noor University, Tehran, Iran
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Santiago-Morales J, Amariei G, Letón P, Rosal R. Antimicrobial activity of poly(vinyl alcohol)-poly(acrylic acid) electrospun nanofibers. Colloids Surf B Biointerfaces 2016; 146:144-51. [DOI: 10.1016/j.colsurfb.2016.04.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 04/05/2016] [Accepted: 04/30/2016] [Indexed: 11/28/2022]
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In situ synthesis of high swell ratio polyacrylic acid/silver nanocomposite hydrogels and their antimicrobial properties. J Inorg Biochem 2016; 164:17-25. [PMID: 27968959 DOI: 10.1016/j.jinorgbio.2016.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 08/05/2016] [Accepted: 08/22/2016] [Indexed: 11/23/2022]
Abstract
Silver nanocomposites embedded within a polymer matrix have attracted attention in recent years. Ionic polymer hydrogels comprise networks of chemically or physically cross-linked polymers that swell considerably in an appropriate solvent. In this study, we used a solution of the carboxylic monomer acrylic acid and silver nitrate to prepare nanocomposite hydrogels through ultraviolet (UV)-light irradiation. Silver-impregnated biomaterial composed of acrylic acid contains only a monomer and no cross-linker. The formation of hydrogels and reduction of silver nanoparticles were affected by the preparation parameters, that is, the monomer concentration and silver nitrate concentration. The morphology, structure, and size of the silver nanocomposite hydrogels were evaluated through field emission scanning electron microscopy and UV-visible absorption. The antimicrobial activity of the samples was tested against fourstandard strains Candida albicans, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli; and five clinical bacterial isolates Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumonia. The silver nanocomposite hydrogels exhibited an interconnected porous structure and could absorb 400 to 550g of deionized water per gram of dried hydrogel. Moreover, these hydrogels produced a strong antibacterial effect, which can be useful in developing new superabsorbent antimicrobial pharmaceutical products.
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Chladek G, Basa K, Mertas A, Pakieła W, Żmudzki J, Bobela E, Król W. Effect of Storage in Distilled Water for Three Months on the Antimicrobial Properties of Poly(methyl methacrylate) Denture Base Material Doped with Inorganic Filler. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E328. [PMID: 28773451 PMCID: PMC5503091 DOI: 10.3390/ma9050328] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/26/2016] [Accepted: 04/27/2016] [Indexed: 11/16/2022]
Abstract
The colonization of poly(methyl methacrylate) (PMMA) denture base materials by pathogenic microorganisms is a major problem associated with the use of prostheses, and the incorporation of antimicrobial fillers is a method of improving the antimicrobial properties of these materials. Numerous studies have demonstrated the initial in vitro antimicrobial effectiveness of this type of material; however, reports demonstrating the stability of these fillers over longer periods are not available. In this study, silver sodium hydrogen zirconium phosphate was introduced into the powder component of a PMMA denture base material at concentrations of 0.25%, 0.5%, 1%, 2%, 4%, and 8% (w/w). The survival rates of the gram-positive bacterium Staphylococcus aureus, gram-negative bacterium Escherichia coli and yeast-type fungus Candida albicans were established after fungal or bacterial suspensions were incubated with samples that had been previously stored in distilled water. Storage over a three-month period led to the progressive reduction of the initial antimicrobial properties. The results of this study suggest that additional microbiological tests should be conducted for materials that are treated with antimicrobial fillers and intended for long-term use. Future long-term studies of the migration of silver ions from the polymer matrix and the influence of different media on this ion emission are required.
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Affiliation(s)
- Grzegorz Chladek
- Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland.
| | - Katarzyna Basa
- Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland.
| | - Anna Mertas
- Chair and Department of Microbiology and Immunology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Jordana 19, Zabrze 41-808, Poland.
| | - Wojciech Pakieła
- Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland.
| | - Jarosław Żmudzki
- Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland.
| | - Elżbieta Bobela
- Chair and Department of Microbiology and Immunology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Jordana 19, Zabrze 41-808, Poland.
| | - Wojciech Król
- Chair and Department of Microbiology and Immunology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Jordana 19, Zabrze 41-808, Poland.
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Purushothaman M, Krishnan PSG, Nayak SK. Effect of butyl lactate methacrylate content on the properties of acrylic acid copolymers. POLYMER SCIENCE SERIES A 2016. [DOI: 10.1134/s0965545x16030159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Butruk-Raszeja BA, Trzaskowska PA, Kuźminska A, Ciach T. Polyurethane modification with acrylic acid by Ce(IV)-initiated graft polymerization. OPEN CHEM 2016. [DOI: 10.1515/chem-2016-0020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis paper presents a method for polyurethane surface functionalization for tissue engineering applications. Functionalization has been carried out by grafting acrylic acid to the polyurethane surface with the use of radical polymerization with a Ce4+ initiator. Contrary to other papers suggesting that the presence of hydroxyl groups are essential for successful grafting via ceric ions, we propose a method with the omission of the surface hydroxylation step. The influence of reaction conditions: reaction time, reaction temperature and monomer concentration on carboxyl groups surface density has been analyzed and described. The quantity of carboxyl groups on the surface was determined with the use of the TBO method. Materials grafted with acrylic acid have been subjected to conjugation with a peptide using sulfoNHS/ EDC chemistry. Successful incorporation of the peptide has been confirmed by an ELISA assay. Additionally, for better characterization, after each step of modification materials were subjected to SEM, FTIR-ATR, XPS and contact angle measurement analysis.
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Affiliation(s)
- Beata A. Butruk-Raszeja
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Paulina A. Trzaskowska
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Aleksandra Kuźminska
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
- 2CEZAMAT PW, Polna 50, 00-644 Warsaw, Poland
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Marques D, Santos J, Ferreira P, Correia T, Correia I, Gil M, Baptista C. Photocurable bioadhesive based on lactic acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:601-9. [DOI: 10.1016/j.msec.2015.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/26/2015] [Accepted: 09/03/2015] [Indexed: 02/06/2023]
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Islas L, Alvarez-Lorenzo C, Magariños B, Concheiro A, Castillo LFD, Burillo G. Singly and binary grafted poly(vinyl chloride) urinary catheters that elute ciprofloxacin and prevent bacteria adhesion. Int J Pharm 2015; 488:20-8. [DOI: 10.1016/j.ijpharm.2015.04.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 04/13/2015] [Accepted: 04/15/2015] [Indexed: 01/03/2023]
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Mechanistic approaches on the antibacterial activity of poly(acrylic acid) copolymers. Colloids Surf B Biointerfaces 2015; 126:98-105. [DOI: 10.1016/j.colsurfb.2014.12.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/03/2014] [Accepted: 12/08/2014] [Indexed: 11/21/2022]
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47
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Kalinov K, Ignatova M, Manolova N, Rashkov I, Markova N, Momekova D. N,N,N-trimethylchitosan iodide complexes with a weak or a strong polyacid and nanoparticles thereof. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3325-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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