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Ding R, Yu L, Peng P, Zhang J, Xu H, Li H, Wu H, Yan L, Li P. Durable and Robust Antibacterial Polypropylene Hernia Mesh for Abdominal Wall Defect Repair. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25686-25697. [PMID: 38739862 DOI: 10.1021/acsami.4c02151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Polypropylene (PP) mesh is commonly used in repairing abdominal wall hernia (AWH). However, the use of synthetic prosthesis comes with the risk of developing a prosthetic infection, resulting in delayed healing, secondary surgery, and potentially increased mortality. To address these issues, a facile surface functionalization strategy for PP mesh based on phytic acid (PA) and polyhexamethylene guanidine (PHMG) was constructed through a one-step co-deposition process, referred to as the PA/PHMG coating. The development of PA/PHMG coating is mainly attributed to the surface affinity of PA and the electrostatic interactions between PA and PHMG. The PA/PHMG coating could be completed within 4 h under mild conditions. The prepared PA/PHMG coatings on PP mesh surfaces exhibited desirable biocompatibility toward mammalian cells and excellent antibacterial properties against the notorious "superbug" methicillin-resistant Staphylococcus aureus (MRSA) and tetracycline-resistant Escherichia coli (TRE). The PA/PHMG-coated PP meshes showed killing ratios of over 99% against MRSA in an infected abdominal wall hernia repair model. Furthermore, histological and immunohistochemical analysis revealed a significantly attenuated degree of neutrophil infiltration in the PA/PHMG coating group, attributed to the decreased bacterial numbers alleviating the inflammatory response at the implant sites. Meanwhile, the pristine PP and PA/PHMG-coated meshes showed effective tissue repair, with the PA/PHMG coating group exhibiting enhanced angiogenesis compared with pristine PP meshes, suggesting superior tissue restoration. Additionally, PP meshes with the highest PHMG weight ratio (PA/PHMG(3)) exhibited excellent long-term robustness under phosphate-buffered saline (PBS) immersion with a killing ratio against MRSA still exceeding 95% after 60 days of PBS immersion. The present work provides a facile and promising approach for developing antibacterial implants.
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Affiliation(s)
- Rui Ding
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Luofeng Yu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Pandi Peng
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Jiajun Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Haoqi Xu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Haoyu Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Hanxue Wu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Likun Yan
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Peng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Ningbo Institute, Northwestern Polytechnical University (NPU), Xi'an 710072, China
- School of Flexible Electronics (SoFE) and Henan Institute of Flexible Electronics (HIFE), Henan University, 379 Mingli Road, Zhengzhou 450046, China
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Park JY, Kim JH, Park CH, Kim SH, Kim IH, Cho WG. Polyhexamethylene guanidine phosphate induces pyroptosis via reactive oxygen species-regulated mitochondrial dysfunction in bronchial epithelial cells. Toxicology 2024; 505:153827. [PMID: 38729513 DOI: 10.1016/j.tox.2024.153827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024]
Abstract
Pyroptosis is a form of programmed cell death characterized by gasdermin (GSDM)-mediated pore formation in the cell membrane, resulting in the release of pro-inflammatory cytokines and cellular lysis. Increasing evidence has shown that pyroptosis is responsible for the progression of various pulmonary disorders. The inhalation of polyhexamethylene guanidine (PHMG) causes severe lung inflammation and pulmonary toxicity; however, the underlying mechanisms are unknown. Therefore, in this study, we investigate the role of pyroptosis in PHMG-induced pulmonary toxicity. We exposed bronchial epithelial cells, BEAS-2B, to PHMG phosphate (PHMG-p) and evaluated cell death type, reactive oxygen species (ROS) levels, and relative expression levels of pyroptosis-related proteins. Our data revealed that PHMG-p reduced viability and induced morphological alterations in BEAS-2B cells. Exposure to PHMG-p induced excessive accumulation of mitochondrial ROS (mtROS) in BEAS-2B cells. PHMG-p activated caspase-dependent apoptosis as well as NLRP3/caspase-1/GSDMD-mediated- and caspase-3/GSDME-mediated pyroptosis through mitochondrial oxidative stress in BEAS-2B cells. Notably, PHMG-p reduced mitochondrial respiratory function and induced the translocation of Bax and cleaved GSDM into the mitochondria, leading to mitochondrial dysfunction. Our results enhanced our understanding of PHMG-p-induced lung toxicity by demonstrating that PHMG-p induces pyroptosis via mtROS-induced mitochondrial dysfunction in bronchial epithelial cells.
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Affiliation(s)
- Jun Young Park
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ji-Hee Kim
- Department of Occupational Therapy, Soonchunhyang University, 22 Soonchunhyang-ro, Asan-si 35138, Republic of Korea
| | - Chan Ho Park
- Department of Anatomy, Yonsei University Wonju College of Medicine, 20, Ilsan-ro, Wonju-si, Gangwon-do 26426, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - In-Hyeon Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Won Gil Cho
- Department of Anatomy, Yonsei University Wonju College of Medicine, 20, Ilsan-ro, Wonju-si, Gangwon-do 26426, Republic of Korea.
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Shatursky OY, Krisanova NV, Pozdnyakova N, Pastukhov AO, Dudarenko M, Kalynovska L, Shkrabak AA, Veklich TO, Selikhova AI, Cherenok SO, Borisova TA, Kalchenko VI, Kosterin SO. Substitution of bridge carbons for sulphur in calix[4]arene-bis-α-hydroxymethylphosphonic acid transformed mobile carrier into ionic channel accompanied with evoked muscle contraction and impaired neurotransmission powered by membrane action of resulting thiocalix[4]arene-bis-α-hydroxymethylphosphonic acid. Toxicol In Vitro 2024:105815. [PMID: 38636607 DOI: 10.1016/j.tiv.2024.105815] [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: 10/24/2023] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024]
Abstract
The action of calix[4]arenes C-424, C-425 and C-1193 has been investigated on suspended cholesterol/egg phosphatidylcholine lipid bilayer in a voltage-clamp mode. Comparative analysis with the membrane action by calix[4]arene-bis-α-hydroxymethylphosphonic acid (C-99) has shown that the substitution of bridge carbons for sulphur and addition of another methyl group to two alkyl tales in the lower rim of former dipropoxycalix[4]arene C-99 transformed mobile carrier that C-99 created in lipid bilayer (Shatursky et al., 2014) into a transmembrane pore as exposure of the bilayer membrane to sulphur-containing derivative dibutoxythiocalix[4]arene C-1193 resulted in microscopic transmembrane current patterns indicative of a channel-like mode of facilitated diffusion. Within all calix[4]arenes tested a net steady-state voltage-dependent transmembrane current was readily achieved only after addition of calix[4]-arene C-1193. In comparison with the membrane action of C-99 the current induced by calix[4]-arene C-1193 exhibited a much weakened anion selectivity passing slightly more current at positive potentials applied from the side of bilayer membrane to which the calix[4]-arene was added. Testing C-1193 for the membrane action against smooth muscle cells of rat uterus or swine myometrium and synaptosomes of rat brain nerve terminals revealed an increase in intracellular concentration of Ca2+ with reduction of the effective hydrodynamic diameter of the smooth muscle cells and enhanced basal extracellular level of neurotransmitters (glutamate and γ-aminobutyric acid) after C-1193-induced depolarization of the nerve terminals.
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Affiliation(s)
- Oleg Ya Shatursky
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine.
| | - Natalia V Krisanova
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Natalia Pozdnyakova
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Artem O Pastukhov
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Marina Dudarenko
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Lilia Kalynovska
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Alexander A Shkrabak
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Tatiana O Veklich
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Anna I Selikhova
- Institute of Organic Chemistry, NAS of Ukraine, Murmanska Str., 5, Kyiv 02660, Ukraine
| | - Serhii O Cherenok
- Institute of Organic Chemistry, NAS of Ukraine, Murmanska Str., 5, Kyiv 02660, Ukraine
| | - Tatiana A Borisova
- Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
| | - Vitaly I Kalchenko
- Institute of Organic Chemistry, NAS of Ukraine, Murmanska Str., 5, Kyiv 02660, Ukraine
| | - Sergyi O Kosterin
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, Leontovich Str., 9, Kyiv 01030, Ukraine
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Senderskiy IV, Dolgikh VV, Ismatullaeva DA, Mirzakhodjaev BA, Nikitina AP, Pankratov DL. Treatment of Microsporidium Nosema bombycis Spores with the New Antiseptic M250 Helps to Avoid Bacterial and Fungal Contamination of Infected Cultures without Affecting Parasite Polar Tube Extrusion. Microorganisms 2024; 12:154. [PMID: 38257981 PMCID: PMC10819227 DOI: 10.3390/microorganisms12010154] [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: 11/30/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Microsporidia are a group of widespread eukaryotic spore-forming intracellular parasites of great economic and scientific importance. Since microsporidia cannot be cultured outside of a host cell, the search for new antimicrosporidian drugs requires an effective antiseptic to sterilize microsporidian spores to infect cell lines. Here, we show that a new polyhexamethylene guanidine derivative M250, which is active against fungi and bacteria at a concentration of 0.5-1 mg/L, is more than 1000 times less effective against spores of the microsporidium Nosema bombycis, a highly virulent pathogen of the silkworm Bombyx mori (LC50 is 0.173%). Treatment of N. bombycis spores that were isolated non-sterilely from silkworm caterpillars with 0.1% M250 solution does not reduce the rate of spore polar tube extrusion. However, it completely prevents contamination of the Sf-900 III cell culture medium by microorganisms in the presence of antibiotics. The addition of untreated spores to the medium results in contamination, whether antibiotics are present or not. Since 0.1% M250 does not affect spore discharging, this compound may be promising for preventing bacterial and fungal contamination of microsporidia-infected cell cultures.
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Affiliation(s)
- Igor V. Senderskiy
- All-Russian Institute of Plant Protection, Podbelsky Chausse 3, 196608 Saint-Petersburg, Russia;
| | - Viacheslav V. Dolgikh
- All-Russian Institute of Plant Protection, Podbelsky Chausse 3, 196608 Saint-Petersburg, Russia;
| | - Diloram A. Ismatullaeva
- Scientific Research Institute of Sericulture, Ipakchi Str. 1, Tashkent 100069, Uzbekistan; (D.A.I.); (B.A.M.)
| | - Bakhtiyar A. Mirzakhodjaev
- Scientific Research Institute of Sericulture, Ipakchi Str. 1, Tashkent 100069, Uzbekistan; (D.A.I.); (B.A.M.)
| | - Anastasiia P. Nikitina
- Department of Microbiology and Virology, Pavlov First Saint-Petersburg State Medical University, L’vaTolstogo Str. 6-8, 197022 Saint-Petersburg, Russia; (A.P.N.); (D.L.P.)
| | - Danil L. Pankratov
- Department of Microbiology and Virology, Pavlov First Saint-Petersburg State Medical University, L’vaTolstogo Str. 6-8, 197022 Saint-Petersburg, Russia; (A.P.N.); (D.L.P.)
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Kucukoduk A, Durmus Bilgiseven IM, Aksoy M, Karakurt S. Comparison of cytotoxic, apoptotic and oxidative properties of Akacid plus and chlorhexidine in corneal epithelial cell culture. Eur J Ophthalmol 2023:11206721231210748. [PMID: 37908085 DOI: 10.1177/11206721231210748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
PURPOSE This study aims to compare the cytotoxic, apoptotic, and oxidative effects of a new cationic disinfectant, Akacid Plus, with chlorhexidine, on the human corneal epithelial cell line. METHODS Time-dependent cytotoxicity studies were performed with the Alamar Blue method. Apoptotic activity was investigated by flow cytometric methods. Reactive oxygen species levels were measured with the ROS cellular test kit. BAX, BCL2 and caspase 3, 9, 12 mRNA expressions were evaluated by PCR, as well as BAX and BCL2 protein expressions by Western-Blot. RESULTS At the fifth minute of the treatment, the viability was 68.15% with Akacid Plus and 43.95% with chlorhexidine. At the 15th minute, no significant difference was observed with both solutions. In the apoptotic evaluation, Akacid Plus significantly increased the early and late apoptotic activity in the cell line (p < 0.0001), while a significant increase was observed in late apoptosis and necrosis levels with chlorhexidine (p < 0.001). Chlorhexidine also induced gene expression of BAX, BCL2, caspase 3, 9 and BAX proteins (p < 0.05), while reducing protein expression of BCL2 (p < 0.001). Akacid Plus induced the gene expressions of BCL2, CASP3 and caspase 9, reduced gene expressions of BAX and caspase 12 and protein expression of BCL2 (p < 0.05). No significant difference was observed in the ROS level with both solutions (p > 0.05). CONCLUSION Due to the widespread use of cationic polymers in ophthalmology, this new molecule with high antimicrobial activity and relatively low cytotoxicity may be of interest for clinical use. Further investigations are necessary to fully understand the ophthalmologic potential of this solution.
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Affiliation(s)
- Ali Kucukoduk
- Department of Ophthalmology, Faculty of Medicine, Karamanoglu Mehmetbey University, Karaman, Turkey
| | | | - Mustafa Aksoy
- Opticianry, Izmir Kavram Vocational School, Izmir, Turkey
- Dunyagoz Hospital, Izmir, Turkey
| | - Serdar Karakurt
- Department of Biochemistry, Faculty of Science, Selcuk University, Konya, Turkey
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Huang J, Cao Y, Ding S. Preparation of grafted starch by IPDI coupling and its antibacterial properties. Biomaterials 2023; 301:122214. [PMID: 37406600 DOI: 10.1016/j.biomaterials.2023.122214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 04/23/2023] [Accepted: 06/23/2023] [Indexed: 07/07/2023]
Abstract
Antibacterial acetate grafted starch (AGS) was synthesized by isophorone diisocyanate (IPDI) coupling acetate esterified starch (AST) and the antimicrobial agent polyhexamethyleneguanidine hydrochloride (PHMG), and the antimicrobial properties of AGS were evaluated. The process parameters of AGS were: IPDI reacted with PHMG at 120 °C for 1 h, then, reacted with starch at 60 °C for 3 h. The grafting yield of PHMG and starch reached 28.43%. The Fourier transform infrared spectroscopy (FTIR) and Nuclear magnetic resonance (1H NMR) showed that the binding of IPDI to PHMG was successfully grafted on the AS. The antibacterial effect of AGS was investigated. AGS produced inhibition zones and confirmed its significant inhibitory effect on Escherichia coli and Staphylococcus aureus, as the grafting yield increased, the inhibition effect on bacteria became stronger. When the grafting yield was 28.43%, the inhibition rate of AGS was 90.24% for Escherichia coli. and 94.45% for Staphylococcus aureus. The experiments of water washing showed that after AGS was washed 10 times with water, the inhibition rate of AGS to E. coli. only reduced 3.04% and that of S. aureus 2.95%, indicating that the combination of PHMG and starch was stable and the inhibition effect was long-lasting, AGS has huge potential to be developed into antibacterial material.
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Affiliation(s)
- Jingao Huang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yaqi Cao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Shiyong Ding
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
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Yang T, Lu Y, Wang Y, Wang L, Zhang F, Di Ming, Cao Q, Yang H, Zhang Y, Wei W. Toxicity of benzethonium chloride and polyhexamethylene guanidine hydrochloride mixtures on Daphnia carinata: synergistic and antagonistic effects at specific ratios. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115268. [PMID: 37480694 DOI: 10.1016/j.ecoenv.2023.115268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 07/02/2023] [Accepted: 07/15/2023] [Indexed: 07/24/2023]
Abstract
Throughout the coronavirus (COVID-19) pandemic, the sanitizing products benzethonium chloride (BEC) and polyhexamethylene guanidine hydrochloride (PHMG-H) were widely used; however, few studies have investigated their combined toxicity to organisms. In the present study, acute toxicity and genotoxicity of BEC, PHMG-H, and the combination of the two were investigated as endpoints using Daphnia carinata as the model organism. For individual reagents, PHMG-H was found to be more toxic than BEC in terms of both mortality and genotoxicity. DNA damage and survival rate were used as toxicity endpoints. The interaction was evaluated with the concentration addition (CA) model via toxic unit (TU) approach and additive index (AI) method in mixtures at different ratios in TU. Only the binary mixture BEC + PHMG-H at the ratio 1:9 in TU was regarded as synergistic, while all others indicated increased antagonistic effects as the proportion of BEC increased over the PHMG-H concentration. The findings here benefit understanding surrounding precisely how BEC and PHMG-H interact at different mixing ratios, and can assist with the evaluation of risk assessments for binary mixtures in aquatic ecosystems.
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Affiliation(s)
- Tian Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Yuting Lu
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Yuchen Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Liufu Wang
- Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Feng Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Di Ming
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Qingsheng Cao
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Hui Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Yingying Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China
| | - Wenzhi Wei
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225229, China.
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Qiu B, Wang M, Yu W, Li S, Zhang W, Wang S, Shi J. Environmentally Friendly and Broad-Spectrum Antibacterial Poly(hexamethylene guanidine)-Modified Polypropylene and Its Antifouling Application. Polymers (Basel) 2023; 15:polym15061521. [PMID: 36987301 PMCID: PMC10059264 DOI: 10.3390/polym15061521] [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: 02/19/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Biological fouling is one of the main reasons that limits the application of traditional polypropylene (PP) fishing nets in aquaculture. Here, a new environmentally friendly and broad-spectrum antibacterial agent called cationic poly(hexamethylene guanidine) (PHMG) was grafted onto PP molecular chains via permanent chemical bonding to inhibit the biological fouling. The antibacterial monofilaments were obtained by blending different contents of PP-g-PHMG with PP by melt spinning. FTIR results found PHMG to be stably present in the mixed monofilaments after high-temperature melt spinning molding. The crystallinity, relaxation behavior, mechanical properties, water absorptivity, and antibacterial and antifouling efficiencies of the PP-g-PHMG/PP blends were strongly dependent on PP-g-PHMG. The crystallinity increased with increasing PP-g-PHMG content. Adding PP-g-PHMG improved the breaking strength, knotting strength, and elongation at the break for all ratios of PP-g-PHMG/PP blends. However, the water absorption caused by PHMG is low, ranging between 2.48% and 3.45% for the PP-g-PHMG/PP monofilaments. The monofilaments showed excellent nonleaching antimicrobial activities against Staphylococcus aureus and Escherichia coli. The electrostatic adsorption of the negatively charged bacteria and the destruction of their cell membrane allowed the growth inhibition to reach 99.69% with a PP-g-PHMG content of 40%. The marine fish farming experiment also showed a long-term antifouling effect.
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Affiliation(s)
- Biwei Qiu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Meng Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Wenwen Yu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Shouhu Li
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Wenyang Zhang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Shuting Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Jiangao Shi
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
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Wang W, Wang Y, Zhao W, Zhao C. A Straightforward Approach towards Antibacterial and Anti-Inflammatory Multifunctional Nanofiber Membranes with Sustained Drug Release Profiles. Macromol Biosci 2022; 22:e2200150. [PMID: 35856465 DOI: 10.1002/mabi.202200150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/25/2022] [Indexed: 12/25/2022]
Abstract
Preventing bacterial infection and controlling the inflammatory response occupy important positions in wound treatment. Although loading wound dressings with antibacterial or anti-inflammatory drugs/molecules is an effective approach to address these issues, simultaneous sustained release of these drugs remains challenging. Herein, hydrophilic polyhexamethylene guanidine hydrochloride (PHGC) and hydrophobic indomethacin (Indo) are loaded in hydrophilic polyvinyl alcohol (PVA) and hydrophobic polycaprolactone (PCL) nanofibers respectively by bidirectional electrospinning to form an antibacterial and anti-inflammatory PCL-Indo/PVA-PHGC wound dressing. The fabricated nanofiber membrane exhibits 100% disinfection activity to both Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria because of the release of the broad-spectrum antibacterial molecule PHGC. Additionally, the loading of Indo in the nanofiber membrane enhances the expression level of IL-10, while inhibiting those of IL-6 and TNF-α in the RAW264.7 mouse cells. In the interwoven membrane of PCL and PVA fibers, the release of hydrophobic Indo is hindered by hydrophilic PHGC and PVA fibers, and similarly, the release of hydrophilic PHGC is hindered by hydrophobic Indo and PCL fibers. In conclusion, the PCL-Indo/PVA-PHGC nanofiber membrane has excellent antibacterial, anti-inflammatory, and sustained-release effects, and thus regulates the immune microenvironment of the cells to potentially promote wound healing.
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Affiliation(s)
- Wenjie Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yilin Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Weifeng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
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Shi H, Zhuang Q, Zheng A, Zhan P, Guan Y, Wei D, Xu X, Wu T. Antibacterial Mechanism of N-PMI and the Characteristics of PMMA-Co-N-PMI Copolymer. Chem Biodivers 2022; 19:e202100753. [PMID: 35560720 DOI: 10.1002/cbdv.202100753] [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: 09/16/2021] [Accepted: 05/05/2022] [Indexed: 11/07/2022]
Abstract
Aiming at the excellent killing effect of N-phenylmaleimide (N-PMI) on microorganisms, this article used structural simulation analysis, fluorescence analysis, confocal laser scanning microscope and SEM to find that the double bond in N-PMI could interact with the sulfur groups in the membrane protein, changing its conformation, rupturing the plasma membrane of the cell, leaking the contents, and ultimately causing the death of the microorganisms. Therefore, once the double bond participated in the polymerization, N-PMI lost its antimicrobial function. N-PMI could achieve azeotropic copolymerization with MMA through reactive extrusion polymerization. N-PMI with a content of 5 % can be evenly inserted into the PMMA chain segment during the copolymerization reaction, thereby increasing the Tg of pure PMMA by up to 15 °C, which provided the PMMA-co-PMI copolymer with resistance to boiling water sterilization advantageous conditions. In addition, N-PMI with a content of 5 % has little effect on the transparency of PMMA after participating in the copolymerization. Moreover, the trace amount of residual N-PMI made the material have excellent antimicrobial function, and the bacteriostatic zone is extremely small, which provided an excellent guarantee for the safety and durability of the material. As a medical biological material, the PMMA-co-PMI copolymer has a good industrialization application prospects.
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Affiliation(s)
- Han Shi
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Qixin Zhuang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Anna Zheng
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Pengfei Zhan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yong Guan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Dafu Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xiang Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Tao Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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11
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Kanth S, Puttaiahgowda YM. CURRENT STATE AND FUTURE PERSPECTIVES OF STARCH DERIVATIVES AND THEIR BLENDS AS ANTIMICROBIAL MATERIALS. STARCH-STARKE 2022. [DOI: 10.1002/star.202200001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shreya Kanth
- Department of Chemistry Manipal Institute of Technology Manipal Academy of Higher Education Manipal 576104 India
| | - Yashoda Malgar Puttaiahgowda
- Department of Chemistry Manipal Institute of Technology Manipal Academy of Higher Education Manipal 576104 India
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12
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Antimicrobial food packaging integrating polysaccharide-based substrates with green antimicrobial agents: A sustainable path. Food Res Int 2022; 155:111096. [DOI: 10.1016/j.foodres.2022.111096] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 02/08/2023]
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13
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Wang Y, Wei Y, Shang N, Li P. Synergistic Inhibition of Plantaricin E/F and Lactic Acid Against Aeromonas hydrophila LPL-1 Reveals the Novel Potential of Class IIb Bacteriocin. Front Microbiol 2022; 13:774184. [PMID: 35242114 PMCID: PMC8886044 DOI: 10.3389/fmicb.2022.774184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 01/04/2022] [Indexed: 01/15/2023] Open
Abstract
Plantaricin E/F (PlnEF) is a pair of two-component class IIb bacteriocin produced by lactic acid bacteria. PlnEF commonly displays potent antimicrobial activity against certain Gram-positive organisms. In this study, we investigated the synergistic activity of PlnEF combined with lactic acid against Gram-negative food and aquaculture potential pathogen Aeromonas hydrophila LPL-1, which is naturally resistant to PlnEF. We applied SDS-PAGE, wavelength-scanning, laser confocal microscopy, flow cytometer, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and two-dimensional electrophoresis to investigate their synergistic inhibitory activities. The results showed that L-lactic acid drove the release of LPS from A. hydrophila, making it possible for PlnEF to contact the inner cell membrane of A. hydrophila. Besides, co-treatment of lactic acid and PlnEF caused severe morphological and intracellular changes of A. hydrophila, including blebs on the cell surface, abnormal cell elongation, inner membrane disruption, pore-forming through the outer and inner membrane, coagulation of the cytoplasm, and structural transformation of DNA. Protein profile analysis revealed that combined treatment of lactic acid and PlnEF inhibited the energy metabolism, protein synthesis, protein folding, and DNA replication in A. hydrophila. These findings proved that PlnEF combined with lactic acid was efficient against A. hydrophila and shed light on bacteriocin’s potential and a new inhibition mechanism against A. hydrophila.
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Affiliation(s)
- Yang Wang
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Tianjin Key Laboratory of Aqua-Ecology and Aquaculture College of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Yunlu Wei
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Nan Shang
- College of Engineering, China Agricultural University, Beijing, China.,Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Pinglan Li
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, China
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14
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Tarasenkov A, Drozdov F, Parshina M, Strukova E, Cherkaev G, Muzafarov A. Biocidal properties investigation of the new guanidine-containing alkoxysilanes and siloxanes and epoxy materials modified by them. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Zhang M, Lin P, Song X, Chen K, Yang Y, Xu Y, Zhang Q, Wu Y, Zhang Y, Cheng Y. Injectable and self‐healing hydrogels with tissue adhesiveness and antibacterial activity as wound dressings for infected wound healing. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mengyuan Zhang
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Peiling Lin
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Xiaofan Song
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Kun Chen
- School of Pharmacy Xi'an Jiaotong University Xi'an China
| | - Yuxuan Yang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of Stomatology, Xi'an Jiaotong University Xi'an China
| | - Yongliang Xu
- ZhejiangYunFeng New Material Technology Co., Ltd Jinhua China
| | - Qiang Zhang
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Youshen Wu
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Yanfeng Zhang
- School of Chemistry Xi'an Jiaotong University Xi'an China
| | - Yilong Cheng
- School of Chemistry Xi'an Jiaotong University Xi'an China
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16
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Silvestrin LB, Garcia IM, Visioli F, Collares FM, Leitune VCB. Physicochemical and biological properties of experimental dental adhesives doped with a guanidine-based polymer: an in vitro study. Clin Oral Investig 2022; 26:3627-3636. [PMID: 35001214 DOI: 10.1007/s00784-021-04332-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 12/01/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The objective of this study is to formulate experimental dental adhesives with different polyhexamethylene guanidine hydrochloride concentrations (PHMGH) and evaluate their physical, chemical, and biological properties. MATERIALS AND METHODS The experimental adhesives were formulated with 0 (control, GCTRL), 0.5 (G0.5%), 1 (G1%), or 2 (G2%) wt.% into the adhesive. The adhesives were analyzed for degree of conversion (DC%), softening in solvent (ΔKHN%), ultimate tensile strength (UTS), microtensile bond strength (μTBS) immediately and after 1 year of aging, antibacterial activity, and cytotoxicity. RESULTS There were no differences among groups for DC%, ΔKHN%, and UTS (p > 0.05%). There were no differences between each PHMGH-doped adhesive compared to GCTRL in the immediate μ-TBS (p > 0.05). Adhesives with at least 1 wt.% of PHMGH presented better stability of μ-TBS. PHMGH-doped adhesives showed improved longitudinal μ-TBS compared to GCTRL (p < 0.05). Lower Streptococcus mutans biofilm formation was observed for PHMGH-doped adhesives (p < 0.05). There was lower viability of planktonic S. mutans in the media in contact with the samples when at least 1 wt.% of PHGMGH was incorporated (p < 0.05). The formulated adhesives showed no cytotoxicity against pulp cells (p > 0.05). CONCLUSIONS The adhesive with 2 wt.% of PHMGH showed the highest antibacterial activity, without affecting the physicochemical properties and cytotoxicity, besides conferring stability for the dental adhesion. CLINICAL RELEVANCE PHMGH, a positively charged polymer, conveyed antibacterial activity to dental adhesives. Furthermore, it did not negatively affect the essential physicochemical and biocompatibility properties of the adhesives. More importantly, the incorporation of PHMGH provided stability for the μ-TBS compared to the control group without this additive.
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Affiliation(s)
- Lucas Bonfanti Silvestrin
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Isadora Martini Garcia
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Fernanda Visioli
- Oral Pathology Departament, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Fabrício Mezzomo Collares
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Vicente Castelo Branco Leitune
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil.
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17
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Moshynets OV, Baranovskyi TP, Iungin OS, Kysil NP, Metelytsia LO, Pokholenko I, Potochilova VV, Potters G, Rudnieva KL, Rymar SY, Semenyuta IV, Spiers AJ, Tarasyuk OP, Rogalsky SP. eDNA Inactivation and Biofilm Inhibition by the PolymericBiocide Polyhexamethylene Guanidine Hydrochloride (PHMG-Cl). Int J Mol Sci 2022; 23:ijms23020731. [PMID: 35054915 PMCID: PMC8775615 DOI: 10.3390/ijms23020731] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/03/2022] [Accepted: 01/03/2022] [Indexed: 01/05/2023] Open
Abstract
The choice of effective biocides used for routine hospital practice should consider the role of disinfectants in the maintenance and development of local resistome and how they might affect antibiotic resistance gene transfer within the hospital microbial population. Currently, there is little understanding of how different biocides contribute to eDNA release that may contribute to gene transfer and subsequent environmental retention. Here, we investigated how different biocides affect the release of eDNA from mature biofilms of two opportunistic model strains Pseudomonas aeruginosa ATCC 27853 (PA) and Staphylococcus aureus ATCC 25923 (SA) and contribute to the hospital resistome in the form of surface and water contaminants and dust particles. The effect of four groups of biocides, alcohols, hydrogen peroxide, quaternary ammonium compounds, and the polymeric biocide polyhexamethylene guanidine hydrochloride (PHMG-Cl), was evaluated using PA and SA biofilms. Most biocides, except for PHMG-Cl and 70% ethanol, caused substantial eDNA release, and PHMG-Cl was found to block biofilm development when used at concentrations of 0.5% and 0.1%. This might be associated with the formation of DNA–PHMG-Cl complexes as PHMG-Cl is predicted to bind to AT base pairs by molecular docking assays. PHMG-Cl was found to bind high-molecular DNA and plasmid DNA and continued to inactivate DNA on surfaces even after 4 weeks. PHMG-Cl also effectively inactivated biofilm-associated antibiotic resistance gene eDNA released by a pan-drug-resistant Klebsiella strain, which demonstrates the potential of a polymeric biocide as a new surface-active agent to combat the spread of antibiotic resistance in hospital settings.
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Affiliation(s)
- Olena V. Moshynets
- Biofilm Study Group, Department of Cell Regulatory Mechanisms, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150 Zabolotnoho Str., 03680 Kiev, Ukraine; (O.S.I.); (I.P.); (S.Y.R.)
- Correspondence: (O.V.M.); (S.P.R.)
| | - Taras P. Baranovskyi
- Department of Dermatovenerology, Allergology, Clinical and Laboratory Immunology, Shupyk National Healthcare University of Ukraine, 9 Dorohozhytska Str., 03680 Kiev, Ukraine;
- Kyiv Regional Clinical Hospital, 1 Baggovutivska Street, 04107 Kiev, Ukraine; (V.V.P.); (K.L.R.)
| | - Olga S. Iungin
- Biofilm Study Group, Department of Cell Regulatory Mechanisms, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150 Zabolotnoho Str., 03680 Kiev, Ukraine; (O.S.I.); (I.P.); (S.Y.R.)
- Department of Biotechnology, Leather and Fur, Faculty of Chemical and Biopharmaceutical Technologies, Kyiv National University of Technologies and Design, Nemyrovycha-Danchenka Street, 2, 01011 Kiev, Ukraine
| | - Nadiia P. Kysil
- National Children’s Specialized Hospital “Okhmatdyt”, 28/1 Chornovola Str., 01135 Kiev, Ukraine;
| | - Larysa O. Metelytsia
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 50 Kharkivske Schose, 01135 Kiev, Ukraine; (L.O.M.); (I.V.S.); (O.P.T.)
| | - Ianina Pokholenko
- Biofilm Study Group, Department of Cell Regulatory Mechanisms, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150 Zabolotnoho Str., 03680 Kiev, Ukraine; (O.S.I.); (I.P.); (S.Y.R.)
| | - Viktoria V. Potochilova
- Kyiv Regional Clinical Hospital, 1 Baggovutivska Street, 04107 Kiev, Ukraine; (V.V.P.); (K.L.R.)
| | - Geert Potters
- Antwerp Maritime Academy, Noordkasteel Oost 6, 2030 Antwerp, Belgium;
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Kateryna L. Rudnieva
- Kyiv Regional Clinical Hospital, 1 Baggovutivska Street, 04107 Kiev, Ukraine; (V.V.P.); (K.L.R.)
| | - Svitlana Y. Rymar
- Biofilm Study Group, Department of Cell Regulatory Mechanisms, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150 Zabolotnoho Str., 03680 Kiev, Ukraine; (O.S.I.); (I.P.); (S.Y.R.)
| | - Ivan V. Semenyuta
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 50 Kharkivske Schose, 01135 Kiev, Ukraine; (L.O.M.); (I.V.S.); (O.P.T.)
| | - Andrew J. Spiers
- School of Applied Sciences, Abertay University, Bell Street, Dundee DD1 1HG, UK;
| | - Oksana P. Tarasyuk
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 50 Kharkivske Schose, 01135 Kiev, Ukraine; (L.O.M.); (I.V.S.); (O.P.T.)
| | - Sergiy P. Rogalsky
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 50 Kharkivske Schose, 01135 Kiev, Ukraine; (L.O.M.); (I.V.S.); (O.P.T.)
- Correspondence: (O.V.M.); (S.P.R.)
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18
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Li X, Zhu X, Zhang Y, Cao P, Wang R, He Y. Cationic Copolymer Sweetsop-shape Nanospheres Conjugating SalPhen-Zinc Complex for Excellent Antimicrobial. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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19
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Wu R, Song M, Sui D, Duan S, Xu FJ. A natural polysaccharide-based antibacterial functionalization strategy for liquid and air filtration membranes. J Mater Chem B 2021; 10:2471-2480. [PMID: 34820680 DOI: 10.1039/d1tb02273c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Filtration membranes are widely applied in medical fields. However, these membranes are challenged by bacterial contamination in hospitals, which increases the risk of nosocomial infections. Thus, it is significant to develop antibacterial filtration membranes. In this work, an oxidated dextran (ODex)-based antibacterial coating was designed and constructed on microfiltration (MF) membranes and melt-blown fabrics. Polyhexamethylene guanidine (PHMG) was synthesized as an antibacterial agent, and was fixed by ODex onto filtration membranes. The functionalized MF membranes increased the filtration efficiency for E. coli from 20.9% to 99.9%, and improved the absorption ratio for endotoxin by 59.1%, while the water flow rate still remained as high as 5255 L (h m2)-1. Furthermore, the trapped bacteria were inactivated by the antibacterial coating. For the melt-blown fabrics, the aerosol filtration efficiency was increased from 74.6% to 81.0%, and the antibacterial efficiency was promoted to 92.0%. The present work developed a facile and universal antibacterial functionalization strategy for filtration membranes, which provided a new method for the design and development of various novel antibacterial filtration materials in the medical field.
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Affiliation(s)
- Ruonan Wu
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Mengkai Song
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Dandan Sui
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Shun Duan
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Fu-Jian Xu
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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20
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Shentu X, Guan Y, Wang L, Pan J, Zheng A, Wei D, Xu X. Preparation of antibacterial down fibers by chemical grafting using novel guanidine salt oligomer. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xuanyu Shentu
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Yong Guan
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Lili Wang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Jin Pan
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Anna Zheng
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Dafu Wei
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Xiang Xu
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
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21
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He N, Li H, Li L, Cheng C, Lu X, Wen J, Wang X. Polyguanidine-modified adsorbent to enhance marine applicability for uranium recovery from seawater. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126192. [PMID: 34492956 DOI: 10.1016/j.jhazmat.2021.126192] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/27/2021] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
The marine applicability of adsorbents intended for recovering uranium from seawater is crucial. For such applicability, the materials must exhibit anti-biofouling properties, seawater pH adaptability (pH~8), and salt tolerance. Extracting uranium from seawater is a long-term project; hence, biofouling, high salt concentrations, and weak alkaline environments negatively affect the adsorption of uranium and damage the recovered materials. Most studies on the extraction of uranium from seawater focus on increasing the adsorption capacity of the employed adsorbent, while its marine applicability is neglected. In the present study, three types of guanidine polymer (GP)-modified acrylic fibers were prepared to investigate the impact of the introduced structure on the marine applicability of the fibers. After screening, the introduction of polyhexamethylene biguanidine (PHMB) is observed to produce PAO-PHMB-A, characterized by excellent marine applicability. The enhanced properties include high antimicrobial activity (109 CFU/mL, 99.71%), good salt tolerance, and optimal adsorption at a pH of 8. Owing to the synergistic effect of its functional groups, the PAO-PHMB-A material exhibits excellent adsorption performance (525.89 mg/g), as well as high selectivity and durability. More importantly, long-term marine tests revealed that PAO-PHMB-A shows a remarkable uranium adsorption capacity (30 d, 3.19 mg/g) and excellent antibacterial activity. Considering its excellent marine applicability and good adsorption performance, the PAO-PHMB-A material developed in this work could serve as a potential adsorbent for engineering applications associated with uranium recovery from seawater.
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Affiliation(s)
- Ningning He
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China; State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621900, China
| | - Hao Li
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China; Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Luyan Li
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Chong Cheng
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Xirui Lu
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621900, China
| | - Jun Wen
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China.
| | - Xiaolin Wang
- China Academy of Engineering Physics, Mianyang 621900, China.
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22
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Shi H, Zhuang Q, Zheng A, Zhan P, Guan Y, Wei D, Xu X, Wu T. Permanent antimicrobial polymethyl methacrylate prepared by chemical bonding with poly(hexamethylene guanidine hydrochloride). POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Han Shi
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Qixin Zhuang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Anna Zheng
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Pengfei Zhan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Yong Guan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Dafu Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Xiang Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Tao Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
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Characteristics of the Molecular Weight of Polyhexamethylene Guanidine (PHMG) Used as a Household Humidifier Disinfectant. Molecules 2021; 26:molecules26154490. [PMID: 34361643 PMCID: PMC8347013 DOI: 10.3390/molecules26154490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/03/2022] Open
Abstract
(1) Background: Household humidifier disinfectant (HD) brands containing polyhexamethylene guanidine (PHMG) have been found to cause the most HD-associated lung injuries (HDLIs) in the Republic of Korea. Nevertheless, no study has attempted to characterize the potential association of the health effects, including HDLI, with the physicochemical properties of PHMG dissolved in different HD brands. This study aimed to characterize the molecular weight (MW) distribution, the number-average molecular weight (Mn), the weight-average molecular weight (Mw), and the structural types of PHMG used in HD products. (2) Methods: Quantitative measurements were made using matrix-assisted laser desorption/ionization–time-of-flight mass spectrometry (MALDI-TOF MS). The Mn, Mw, and MW distributions were compared among various HD products. (3) Results: The mean Mn and Mw were 542.4 g/mol (range: 403.0–692.2 g/mol) and 560.7 g/mol (range: 424.0–714.70 g/mol), respectively. The degree of PHMG oligomerization ranged from 3 to 7. The MW distribution of PHMG indicated oligomeric compounds regardless of the HD brands. (4) Conclusions: Based on the molecular weight distribution, the average molecular weight of PHMG, and the degree of polymerization, the PHMG collected from HDLI victims could be regarded as an oligomer. PHMG, as used in household humidifiers, should not be exempted from toxic chemical registration as a polymer. Further study is necessary to examine the association of PHMG oligomeric compounds and respiratory health effects, including HDLI.
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Effect of Cu Nanoparticles on the Properties of PP-g-PHMG/PE Monofilament and Its Antifouling Application. INT J POLYM SCI 2021. [DOI: 10.1155/2021/4753301] [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] Open
Abstract
The modified polyethylene monofilament was prepared by melt blending and spinning using polyethylene (PE), polypropylene-grafted poly(hexamethylene guanidine) (PP-g-PHMG), and Cu nanoparticles (CuNPs). The effect of CuNP content on the structure, mechanical properties, and antimicrobial properties of the monofilaments was studied. In addition, the antifouling property of fishing nets using the modified polyethylene monofilaments was evaluated. The results showed that CuNPs were dispersed homogeneously in the monofilament matrix as microaggregates. The initial increase in the tensile strength of monofilament was attributed to the mechanical restraint, whereas a decrease in the tensile properties at 1.0 wt% CuNP content was due to the predominant effect of a decrease in the total crystallinity. A bacteriostatic test showed that the monofilament had an obvious inhibitory effect on Staphylococcus aureus. Furthermore, coupon test results showed that PP-g-PHMG/PE/CuNP nanocomposite netting had lower weight gain than PP-g-PHMG/PE netting (23.6% reduction) because of the combined antibacterial effect of both PHMG and CuNP. Therefore, PP-g-PHMG/PE/CuNP monofilament has the potential to produce green and efficient antifouling fishing nets.
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25
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Preparation of blackberry-shape cationic copolymer particles for highly effective antibacterial coatings. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126202] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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ZHAO P, ZHANG Y, DENG H, MENG Y. Antibacterial mechanism of apple phloretin on physiological and morphological properties of Listeria monocytogenes. FOOD SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1590/fst.55120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Pengtao ZHAO
- Shaanxi Normal University, China; Shaanxi Normal University, China; Shaanxi Normal University, China
| | | | - Hong DENG
- Shaanxi Normal University, China; Shaanxi Normal University, China; Shaanxi Normal University, China
| | - Yonghong MENG
- Shaanxi Normal University, China; Shaanxi Normal University, China; Shaanxi Normal University, China
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Rabbani A, Haghniaz R, Khan T, Khan R, Khalid A, Naz SS, Ul-Islam M, Vajhadin F, Wahid F. Development of bactericidal spinel ferrite nanoparticles with effective biocompatibility for potential wound healing applications. RSC Adv 2021; 11:1773-1782. [PMID: 35424142 PMCID: PMC8693516 DOI: 10.1039/d0ra08417d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/20/2020] [Indexed: 12/18/2022] Open
Abstract
The current study was devised to explore the antibacterial activity and underlying mechanism of spinel ferrite nanoparticles (NPs) along with their biocompatibility and wound healing potentials. In this regard, nickel ferrite and zinc/nickel ferrite NPs were synthesized via a modified co-precipitation method and were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy Energy-dispersive X-ray spectroscopy (EDX). The biocompatibility of the synthesized NPs with human dermal fibroblast (HDF) and red blood cells (RBCs) was assessed. The biocompatible concentrations of the NPs were used to investigate the antimicrobial activity against various pathogenic Gram-negative and Gram-positive bacteria. The mode of bactericidal action was also explored. In vitro scratch assay was performed to evaluate the wound healing potential of NPs. The SEM-EDX analysis showed that the average particles size of nickel ferrite and zinc/nickel ferrite were 49 and 46 nm, respectively, with appropriate elemental composition and homogenous distribution. The XRD pattern showed all the characteristic diffraction peaks of spinel ferrite NPs, which confirmed the synthesis of the pure phase cubic spinel structure. The biocompatible concentration of nickel ferrite and zinc/nickel ferrite NPs was found to be 250 and 125 μg ml-1, respectively. Both the NPs showed inhibition against all the selected strains in the concentration range of 50 to 1000 μg ml-1. Studies on the underlying antimicrobial mechanism revealed damage to the cell membrane, protein leakage, and intracellular reactive oxygen species production. The in vitro scratch assay confirmed the migration and proliferation of fibroblast with artificial wound shrinkage. This study shows that nickel ferrite and zinc/nickel ferrite NPs could be a strong candidate for antibacterial and wound healing nano-drugs.
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Affiliation(s)
- Atiya Rabbani
- Department of Biotechnology, COMSATS University Islamabad Abbottabad Campus Pakistan
| | - Reihaneh Haghniaz
- Khademhosseini's Laboratory, Center for Minimally Invasive Therapeutics (CMIT) California NanoSystems Institute, University of California Los Angles Los Angles USA
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad Abbottabad Campus Pakistan
| | - Romana Khan
- Department of Environmental Sciences, COMSATS University Islamabad Abbottabad Campus Pakistan
| | - Ayesha Khalid
- Department of Biotechnology, COMSATS University Islamabad Abbottabad Campus Pakistan
| | - Syeda Sohaila Naz
- Department of Nanosciences and Technology, National Centre for Physics Islamabad Pakistan
| | - Mazhar Ul-Islam
- Department of Chemical Engineering, College of Engineering, Dhofar University Salalah Oman
| | | | - Fazli Wahid
- Department of Biotechnology, COMSATS University Islamabad Abbottabad Campus Pakistan
- Department of Biomedical Sciences, Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology Mang, Khanpur Road Haripur Pakistan
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Gong W, Wei D, Zhang S, Jiang Y, Ye J, Zheng A, Guan Y. Nonleaching antimicrobial poly(vinyl alcohol)/polyhexamethylene guanidine hydrochloride hydrogels reinforced by hydrogen bond. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Wuling Gong
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Dafu Wei
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Shaotian Zhang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Yachao Jiang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Jingyun Ye
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Anna Zheng
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Yong Guan
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
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Liu Y, Zou Y, Wang J, Wang S, Liu X. A novel cationic waterborne polyurethane coating modified by chitosan biguanide hydrochloride with application potential in medical catheters. J Appl Polym Sci 2020. [DOI: 10.1002/app.50290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yuxing Liu
- School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin China
| | - Yalu Zou
- School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin China
| | - Jing Wang
- School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin China
| | - Shuo Wang
- School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin China
| | - Xiaofei Liu
- School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin China
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30
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Li X, Wang B, Liang T, Wang R, Song P, He Y. Synthesis of cationic acrylate copolyvidone-iodine nanoparticles with double active centers and their antibacterial application. NANOSCALE 2020; 12:21940-21950. [PMID: 33112328 DOI: 10.1039/d0nr05462c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Antibacterial materials are rapidly emerging as a primary component in the mitigation of bacterial pathogens, and functional polymers play a vital role in the preparation of antibacterial coatings. In this study, a novel antibacterial polymer with double active centers was synthesized. Firstly, using one-pot soap-free emulsion polymerization technology, the cationic acrylate copolymeric polyvidone (CACPV) was synthesized by copolymerization of four monomers with different functions, which were methyl methacrylate (MMA), N-vinyl-2-pyrrolidone (NVP), γ-methacryloxypropyltrimethoxysilane (MAPTS) and [3-(methacryloylamino)propyl]trimethylammonium chloride (MAPTAC). Secondly, using iodine complexation, the cationic acrylate copolyvidone-iodine (CACPVI) nanoparticles were prepared. After being characterized by scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray photoelectron spectroscopy (XPS) and contact angle test, the antibacterial activity of CACPVI was evaluated against the typical human pathogens Escherichia coli (E. coli, Gram-negative) and Staphylococcus aureus (S. aureus, Gram-positive). Additionally, CACPVI was used to improve the antibacterial activities of some materials, such as ink, dye and coatings. It was found that CACPVI presented an excellent antibacterial synergy. When the antibacterial activities were more than 99% at a concentration of 40.00 μg mL-1, CACPVI exhibited long-term antibacterial performance as expected. The antibacterial mechanism of this synergy was also investigated. In summary, a novel antibacterial polymer material with double active centers was successfully synthesized and was widely applied in coating, dye and ink materials for minimizing bacterial infection.
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Affiliation(s)
- Xuemei Li
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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Zhu X, Kong X, Ma S, Liu R, Li X, Gao S, Ren D, Zheng Y, Tang J. TGFβ/Smad mediated the polyhexamethyleneguanide areosol-induced irreversible pulmonary fibrosis in subchronic inhalation exposure. Inhal Toxicol 2020; 32:419-430. [PMID: 33148071 DOI: 10.1080/08958378.2020.1836091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AIM Polyhexamethylene guanidine (PHMG) is widely used as a disinfectant with broad spectra of bactericidal activity and low oral toxicity. However, inhalation of PHMG can cause pulmonary injury and severe pulmonary fibrosis. The mechanism underlying PHMG aerosol induced pulmonary fibrosis remains unclear. In this study, we aimed to examine the subchronic lung injury and determine potential cytokines involved in PHMG aerosol induced fibrosis. METHODS C57BL/6N mice were exposed to 1.03 mg/m3 PHMG through aerosol inhalation for 3 weeks, or 3 weeks followed by other 3 weeks recovery. RESULTS The results indicated that the expression of transforming growth factor-beta1 (TGF-β1) and extracellular matrix remodeling markers were up-regulated in the PHMG-treated mice and these parameters were aggravated after 3 weeks recovery. Bronchoalveolar lavage fluids (BALFs) analysis showed that the number of total cells was significantly decreased in exposure group. The percentage of macrophages in BALFs decreased significantly whereas the percentage of neutrophils and lymphocytes increased. Extensive collagen deposition was observed in the peribronchiolar and interstitial areas in the PHMG exposed lungs. CONCLUSION In conclusion, even low-does PHMG aerosol exposure could induce mice pulmonary local inflammation and irreversible fibrosis. In addition, TGF-β/Smad signaling pathway mediated the extracellular matrix remodeling involved in the development of pulmonary fibrosis.
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Affiliation(s)
- Xiaoxiao Zhu
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Xiao Kong
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Sai Ma
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Rui Liu
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Xin Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Shaobo Gao
- Department of Respiratory Medicine, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Dunqiang Ren
- Department of Respiratory Medicine, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
| | - Jinglong Tang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, China
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Zhou T, Li R, Zhang S, Zhao S, Sharma M, Kulshrestha S, Khan A, Kakade A, Han H, Niu Y, Li X. A copper-specific microbial fuel cell biosensor based on riboflavin biosynthesis of engineered Escherichia coli. Biotechnol Bioeng 2020; 118:210-222. [PMID: 32915455 DOI: 10.1002/bit.27563] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 11/07/2022]
Abstract
Copper pollution poses a serious threat to the aquatic environment; however, in situ analytical methods for copper monitoring are still scarce. In the current study, Escherichia coli Rosetta was genetically modified to express OprF and ribB with promoter Pt7 and PcusC , respectively, which could synthesize porin and senses Cu2+ to produce riboflavin. The cell membrane permeability of this engineered strain was increased and its riboflavin production (1.45-3.56 μM) was positively correlated to Cu2+ (0-0.5 mM). The biosynthetic strain was then employed in microbial fuel cell (MFC) based biosensor. Under optimal operating parameters of pH 7.1 and 37°C, the maximum voltage (248, 295, 333, 352, and 407 mV) of the constructed MFC biosensor showed a linear correlation with Cu2+ concentration (0.1, 0.2, 0.3, 0.4, 0.5 mM, respectively; R2 = 0.977). The continuous mode testing demonstrated that the MFC biosensor specifically senses Cu2+ with calculated detection limit of 28 μM, which conforms to the common Cu2+ safety standard (32 μM). The results obtained with the developed biosensor system were consistent with the existing analytical methods such as colorimetry, flame atomic absorption spectrometry, and inductively coupled plasma optical emission spectrometry. In conclusion, this MFC-based biosensor overcomes the signal conversion and transmission problems of conventional approaches, providing a fast and economic analytical alternative for in situ monitoring of Cu2+ in water.
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Affiliation(s)
- Tuoyu Zhou
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Rong Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China.,Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou, Gansu, China
| | - Shuting Zhang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Shuai Zhao
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China.,Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou, Gansu, China
| | - Monika Sharma
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Saurabh Kulshrestha
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, Himachal Pradesh, India
| | - Aman Khan
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Apurva Kakade
- Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou, Gansu, China
| | - Huawen Han
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Yongyan Niu
- Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou, Gansu, China
| | - Xiangkai Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
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Lim YM, Kim H, Lim SK, Yoo J, Lee JY, Eom IC, Yoon BI, Kim P, Yu SD, Shim I. In Vitro and In Vivo Evaluation of the Toxic Effects of Dodecylguanidine Hydrochloride. TOXICS 2020; 8:E76. [PMID: 32971939 PMCID: PMC7560342 DOI: 10.3390/toxics8030076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 11/21/2022]
Abstract
The toxicity profiles of the widely used guanidine-based chemicals have not been fully elucidated. Herein, we evaluated the in vitro and in vivo toxicity of eight guanidine-based chemicals, focusing on inhalation toxicity. Among the eight chemicals, dodecylguanidine hydrochloride (DGH) was found to be the most cytotoxic (IC50: 0.39 μg/mL), as determined by the water soluble tetrazolium salts (WST) assay. An acute inhalation study for DGH was conducted using Sprague-Dawley rats at 8.6 ± 0.41, 21.3 ± 0.83, 68.0 ± 3.46 mg/m3 for low, middle, and high exposure groups, respectively. The levels of lactate dehydrogenase, polymorphonuclear leukocytes, and cytokines (MIP-2, TGF-β1, IL-1β, TNF-α, and IL-6) in the bronchoalveolar lavage fluid increased in a concentration-dependent manner. Histopathological examination revealed acute inflammation with necrosis in the nasal cavity and inflammation around terminal bronchioles and alveolar ducts in the lungs after DGH inhalation. The LC50 of DGH in rats after exposure for 4 h was estimated to be >68 mg/m3. Results from the inhalation studies showed that DGH was more toxic in male rats than in female rats. Overall, DGH was found to be the most cytotoxic chemical among guanidine-based chemicals. Exposure to aerosols of DGH could induce harmful pulmonary effects on human health.
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Affiliation(s)
- Yeon-Mi Lim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Haewon Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Seong Kwang Lim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Jean Yoo
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Ji-Young Lee
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Ig-Chun Eom
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Byung-Il Yoon
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea;
| | - Pilje Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Seung-Do Yu
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Ilseob Shim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 22689, Korea; (Y.-M.L.); (H.K.); (S.K.L.); (J.Y.); (J.-Y.L.); (I.-C.E.); (P.K.); (S.-D.Y.)
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Park DU, Park J, Yang KW, Park JH, Kwon JH, Oh HB. Properties of Polyhexamethylene Guanidine (PHMG) Associated with Fatal Lung Injury in Korea. Molecules 2020; 25:E3301. [PMID: 32708129 PMCID: PMC7397048 DOI: 10.3390/molecules25143301] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 11/16/2022] Open
Abstract
The use of humidifier disinfectant (HD) has been determined to be associated with lung injuries (HDLI) in Korea. Although HD brands containing polyhexamethylene guanidine (PHMG) oligomers have been found to cause more HDLI compared to brands containing other disinfectants, the physicochemical properties of PHMG have been poorly defined. We aimed to quantify the PHMG dissolved in HD brands, characterize the number-average (Mn) and weight-average (Mw) molecular masses, and identify the polymerization degree of PHMG. Analysis of the PHMG oligomers was performed using a matrix-assisted laser desorption/ionization time-of-flight mass spectrometer (MALDI-TOF MS) operated in positive-ion reflectron mode. Eight brands of HD containing PHMG were identified. The PHMG concentrations in these brands ranged from 160 to 37,200 ppm (mean = 3100.9 ppm). Concentration was a significant variable among and within HD brands. The degree of PHMG oligomerization fell within the range of two to four. The averages of Mn and Mw were 517.2 g/mol (range: 422-613 g/mol) and 537.3 g/mol (range: 441.0-678.0 g/mol), respectively. Based on the average molecular weight and the degree of polymerization, the PHMG examined here could be regarded as oligomers, which may be associated with the highest proportion of HDLI being caused by PHMG.
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Affiliation(s)
- Dong-Uk Park
- Department of Environmental Health, Korea National Open University, Seoul 03087, Korea
| | - Jihoon Park
- Environmental Safety Group, Korea Institute of Science and Technology Europe Forschungsgesellschaft mbH, 66123 Saarbrücken, Germany
- Institute of Health and Environment, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea
| | - Kee Won Yang
- Department of Chemistry, Sogang University, Seoul 04107, Korea
| | - Ju-Hyun Park
- Department of Statistics, Dongguk University, Seoul 04620, Korea
| | - Jung-Hwan Kwon
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Korea
| | - Han Bin Oh
- Department of Chemistry, Sogang University, Seoul 04107, Korea
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Synthesis of guanidinopropyl triethoxysilane and its homopolymer as a new class of organosilicon antibacterial agents. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Collares FM, Garcia IM, Bohns FR, Motta A, Melo MA, Leitune VCB. Guanidine hydrochloride polymer additive to undertake ultraconservative resin infiltrant against Streptococcus mutans. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Salama A, Hasanin M, Hesemann P. Synthesis and antimicrobial properties of new chitosan derivatives containing guanidinium groups. Carbohydr Polym 2020; 241:116363. [PMID: 32507164 DOI: 10.1016/j.carbpol.2020.116363] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/19/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022]
Abstract
New chitosan derivatives bearing guanidinium functions were synthesized following different synthesis strategies. N-guanidinium chitosan acetate and N-guanidinium chitosan chloride were synthesized by direct reaction between chitosan and cyanamide in the presence of scandium(III) triflate. The synthesis of N-guanidinium chitosan (N,N'-dicyclohexyl) chloride and N-guanidinium chitosan (N-(3-dimethylaminopropyl)-N'-ethyl hydrochloride) chloride involved the reaction of chitosan with carbodiimides in ionic liquid. The chitosan derivatives were characterized by analytical techniques including 13C solid state NMR, FT-IR spectroscopies, thermogravimetry and elemental analysis. The antimicrobial properties of chitosan and the new derivatives were investigated using the minimal inhibitory concentration (MIC) technique. All new guanylated chitosan derivatives displayed high antimicrobial activity in comparison with neat chitosan. The N-guanidinium chitosan acetate reduced the time required for killing to half in comparison with chitosan and recorded MIC values less than 3.125 mg/mL against all assayed microorganisms. This work opens new perspectives for using chitosan derivatives as antimicrobial surfaces.
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Affiliation(s)
- Ahmed Salama
- Institut Charles Gerhardt de Montpellier, UMR CNRS 5253 Université de Montpellier-CNRS-ENSCM, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France; Cellulose and Paper Department, National Research Center, 33 El-Behouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Mohamed Hasanin
- Cellulose and Paper Department, National Research Center, 33 El-Behouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Peter Hesemann
- Institut Charles Gerhardt de Montpellier, UMR CNRS 5253 Université de Montpellier-CNRS-ENSCM, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France
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Wang J, Yu Y, Dong Y. Disinfection of Ready-to-Eat Lettuce Using Polyhexamethylene Guanidine Hydrochloride. Microorganisms 2020; 8:E272. [PMID: 32079354 PMCID: PMC7074769 DOI: 10.3390/microorganisms8020272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 11/16/2022] Open
Abstract
As a novel and safe sanitizer, polyhexamethylene guanidine hydrochloride (PHMG) has been used to inhibit the spoilage of agricultural products caused by fungi. However, little is known about its antibacterial effects on vegetables. In this study, we evaluated the disinfection efficacy of PHMG on ready-to-eat lettuce. PHMG (150-200 mg/L) treatment for 5 min was optimal for lettuce disinfection. Compared to several household sanitizers (vinegar: 1% acetic acid; kettle descaler: 1% citric acid; "84" disinfectant: 200 mg/L sodium hypochlorite), PHMG showed the greatest reductions in Escherichia coli O157:H7, Listeria monocytogenes, aerobic mesophilic counts, aerobic psychrotrophic counts and molds and yeasts. Quality analysis of color (as determined by L*, a* and b*) and determination of electrolyte leakage indicated that PHMG did not cause any additional quality loss as compared to other household sanitizers. These results provide a reference for the application of PHMG as a vegetable sanitizer at the ready-to-eat stage.
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Affiliation(s)
- Jiayi Wang
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China;
| | - Yougui Yu
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China;
| | - Yuemei Dong
- Shijiashike Co., Ltd., Liaoyang 111000, China;
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Ojogbo E, Ward V, Mekonnen TH. Functionalized starch microparticles for contact-active antimicrobial polymer surfaces. Carbohydr Polym 2020; 229:115422. [DOI: 10.1016/j.carbpol.2019.115422] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/28/2019] [Accepted: 10/01/2019] [Indexed: 01/22/2023]
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40
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Jia M, Nai Z, Han Y, Huang Z, Wang J, He X. Physical and biological properties of a novel root canal sealer modified by polyhexamethylene guanidine. Dent Mater J 2020; 39:141-147. [PMID: 31694994 DOI: 10.4012/dmj.2018-154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The key of the root canal therapy is to eliminate the micro-organism infection, fill the root canal tightly and reduce the stimulation to the periapical tissues. However, it is quite difficult to meet all the conditions due to the defect of the material. Here we develop a novel root canal sealer (MZOE), in which zinc oxide eugenol (ZOE) were fabricated with polyhexamethylene guanidine (PHMG), and the PHMG's concentration is 0.8, 1.0, 1.2 and 1.4%. Our investigation tested its physical properties, antibacterial effect to E. faecalis, C. albicans, E. coli, S. aureus and cytotoxicity to human periodontal ligament fibroblasts (HPDLFs). The physical properties of the MZOE conformed to the ISO 6876:2001, and its antibacterial effect was stronger than ZOE (p<0.05), the RGR of HPDLFs was tested between 1 to 24%, belonging to moderate cytotoxicity. It was suggested that MZOE had good physical properties, high antibacterial effect, and moderate cytotoxicity.
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Affiliation(s)
- Mei'e Jia
- School of Stomatology, Lanzhou University
| | | | - Yu Han
- School of Stomatology, Lanzhou University
| | | | - Jun Wang
- Dental Department, People's Hospital of Gansu Province
| | - Xiangyi He
- School of Stomatology, Lanzhou University
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41
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Wang J, Yu Y, Dong Y. Combination of polyhexamethylene guanidine hydrochloride and potassium peroxymonosulfate to disinfect ready-to-eat lettuce. RSC Adv 2020; 10:40316-40320. [PMID: 35520831 PMCID: PMC9057474 DOI: 10.1039/d0ra08356a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/01/2020] [Indexed: 12/23/2022] Open
Abstract
There is increasing demand for improved fresh produce disinfection technology during the ready-to-eat stage, especially in low-income developing countries. We previously reported that polyhexamethylene guanidine hydrochloride (PHMG) is an effective sanitizer using fresh-cut lettuce as a model. As a low-cost alternative, in the present study, we examined the disinfection efficacy of combining PHMG with the oxidizing sanitizer potassium peroxymonosulfate (PMS). PHMG (150 mg L−1) reduced the counts of Escherichia coli O157:H7, non-O157 E. coli, Listeria monocytogenes, Salmonella typhimurium, and naturally present microbes on ready-to-eat lettuce. The disinfection efficacy of PMS was significantly lower than that of PHMG; however, the efficacy of their combination (100 mg L−1 PHMG + 50 mg L−1 PMS, 50 mg L−1 PHMG + 100 mg L−1 PMS, and 50 mg L−1 PHMG + 50 mg L−1 PMS) was equivalent to that of PHMG alone. Color and sensory analyses (crispness, color, flavour, and off-odor) indicated that the combination of PHMG and PMS will not lead to additional quality loss when compared with tap water treatment, and electrolyte leakage analysis showed no additional lettuce surface damage of the combination when compared with PHMG-only treatment. These results show that partial replacement of PHMG by PMS is a cost-reducing strategy, providing a theoretical foundation for its practical application. Combination of polyhexamethylene guanidine hydrochloride and potassium peroxymonosulfate can achieve consistent disinfection effects as those obtained with polyhexamethylene guanidine hydrochloride but at a lower cost.![]()
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Affiliation(s)
- Jiayi Wang
- College of Food and Chemical Engineering
- Shaoyang University
- Shaoyang 422000
- China
| | - Yougui Yu
- College of Food and Chemical Engineering
- Shaoyang University
- Shaoyang 422000
- China
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42
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Ryu SH, Park DU, Lee E, Park S, Lee SY, Jung S, Hong SB, Park J, Hong SJ. Humidifier disinfectant and use characteristics associated with lung injury in Korea. INDOOR AIR 2019; 29:735-747. [PMID: 31278778 DOI: 10.1111/ina.12585] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 04/26/2019] [Accepted: 06/27/2019] [Indexed: 06/09/2023]
Abstract
Since around the year 2000, hundreds of people in Korea have developed humidifier disinfectant-associated lung injury (HDLI). We collected all HD exposure-related information from the field investigations into the locations in which the 1199 registered patients had used HD. Among the people who registered, 38% (1st round = 214, 2nd = 73, 3rd = 166) were confirmed as HDLI patients. Children aged under eight years old made up the highest proportion of HDLI cases (N = 279, 62%), followed by pregnant women (N = 31, 7%). One hundred thirty-three (29%) of the confirmed HDLI patients died. Fifty-seven percent of HDLI patients (N = 259) developed HDLI after <1 year of HD use. The number of HDLI patients who used only the Oxy Saksak HD brand was found to be 176 (39%), followed by the brands Cefu (N = 27, 6%) and Aekyung (N = 22, 5%). HD products containing only polyhexamethylene guanidine phosphate (PHMG-P) were the most frequently used among HDLI patients (N = 234, 52%), followed by oligo (2-(2-ethoxy)ethoxyethyl) guanidinium (PGH) (N = 27, 6%) and a mixture of chloromethylisothiazolinone (CMIT) and methylisothiazolinone (MIT) (N = 26, 6%). The average PHMG-P inhalation level estimated from the patient group classified as suffering lung injury definitely associated with HD use was 145.1 μg/m3 (N = 91, SD = 395.1 μg/m3 ), higher than levels estimated from both the probable and possible HDLI patient groups. In conclusion, HD exposure-related variables, including type of HD brand and estimated inhalation HD level, were associated with the risk of HDLI.
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Affiliation(s)
- Seung-Hun Ryu
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Dong-Uk Park
- Department of Environmental Health, Korea National Open University, Seoul, Korea
| | - Eun Lee
- Department of Pediatrics, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Soyoung Park
- Total Health Care Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyungkwan University, Seoul, Korea
| | - So-Yeon Lee
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sungsu Jung
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang-Bum Hong
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jihoon Park
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Soo-Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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43
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Pan Y, Xia Q, Xiao H. Cationic Polymers with Tailored Structures for Rendering Polysaccharide-Based Materials Antimicrobial: An Overview. Polymers (Basel) 2019; 11:E1283. [PMID: 31374864 PMCID: PMC6723773 DOI: 10.3390/polym11081283] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/25/2019] [Accepted: 07/25/2019] [Indexed: 12/29/2022] Open
Abstract
Antimicrobial polymers have attracted substantial interest due to high demands on improving the health of human beings via reducing the infection caused by various bacteria. The review presented herein focuses on rendering polysaccharides, mainly cellulosic-based materials and starch to some extent, antimicrobial via incorporating cationic polymers, guanidine-based types in particular. Extensive review on synthetic antimicrobial materials or plastic/textile has been given in the past. However, few review reports have been presented on antimicrobial polysaccharide, cellulosic-based materials, or paper packaging, especially. The current review fills the gap between synthetic materials and natural polysaccharides (cellulose, starch, and cyclodextrin) as substrates or functional additives for different applications. Among various antimicrobial polymers, particular attention in this review is paid to guanidine-based polymers and their derivatives, including copolymers, star polymer, and nanoparticles with core-shell structures. The review has also been extended to gemini surfactants and polymers. Cationic polymers with tailored structures can be incorporated into various products via surface grafting, wet-end addition, blending, or reactive extrusion, effectively addressing the dilemma of improving substrate properties and bacterial growth. Moreover, the pre-commercial trial conducted successfully for making antimicrobial paper packaging has also been addressed.
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Affiliation(s)
- Yuanfeng Pan
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qiuyang Xia
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
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Su Y, Feng T, Feng W, Pei Y, Li Z, Huo J, Xie C, Qu X, Li P, Huang W. Mussel‐Inspired, Surface‐Attachable Initiator for Grafting of Antimicrobial and Antifouling Hydrogels. Macromol Rapid Commun 2019; 40:e1900268. [PMID: 31361063 DOI: 10.1002/marc.201900268] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/05/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Yajuan Su
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Center for Biomedical Engineering and Regenerative Medicine (CBERM)Frontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710054 China
| | - Tao Feng
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Wei Feng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211800 China
| | - Yangyang Pei
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Ziyue Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211800 China
| | - Jingjing Huo
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Chao Xie
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologyDepartment of Oral ImplantologySchool of StomatologyFourth Military Medical University 169 West Changle Road Xi'an 710032 China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of EducationThe State Key Laboratory of Bioreactor EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Peng Li
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Center for Biomedical Engineering and Regenerative Medicine (CBERM)Frontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710054 China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211800 China
| | - Wei Huang
- MIIT Key Laboratory of Flexible Electronics & Shaanxi Key Laboratory of Flexible ElectronicsXi'an Key Laboratory of Flexible Electronics & Xi'an Key Laboratory of Biomedical Materials and EngineeringXi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211800 China
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45
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Membrane action of polyhexamethylene guanidine hydrochloride revealed on smooth muscle cells, nerve tissue and rat blood platelets: A biocide driven pore-formation in phospholipid bilayers. Toxicol In Vitro 2019; 60:389-399. [PMID: 31195087 DOI: 10.1016/j.tiv.2019.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/08/2019] [Accepted: 06/09/2019] [Indexed: 12/31/2022]
Abstract
A well-known cationic biocide of guanidine polymer family, polyhexamethylene guanidine hydrochloride (PHMG) has been tested against smooth muscle cells isolated from swine myometrium, synaptosomes of rat brain nerve terminals and rat blood platelets for the membrane action. It was established that PHMG blocked the activity of Na+,K+-ATPase of smooth muscle cells plasma membrane by 82.2 ± 0.9% at a concentration of 7 ppm, whilst a dose-dependent depolarization of synaptosomes and platelets became appreciable at 100-500 ppm. Comparative studies by the methods of mass spectrometry (MALDI-TOF and PDMS-TOF), viscosimetry, dynamic light scattering and model phospholipid membranes revealed PHMG oligomers with various number of repeat units (8-16) that formed K+-selective potential-dependent pores in sterol-free phosphatidylethanolamine-containing phospholipid bilayers at a concentration of 1 ppm. Obtained results suggest that besides acidic lipids and membrane proteins phosphatidylethanolamine and cholesterol are the other major factors responsible for the differences between PHMG-induced plasma membrane depolarization of microbial and eukaryotic cells and thus, diverse modes of PHMG membrane action.
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46
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Polypropylene nonwoven fabric modified with oxime and guanidine for antibiofouling and highly selective uranium recovery from seawater. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06578-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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47
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de Nova PJG, Carvajal A, Prieto M, Rubio P. In vitro Susceptibility and Evaluation of Techniques for Understanding the Mode of Action of a Promising Non-antibiotic Citrus Fruit Extract Against Several Pathogens. Front Microbiol 2019; 10:884. [PMID: 31105673 PMCID: PMC6491944 DOI: 10.3389/fmicb.2019.00884] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/05/2019] [Indexed: 12/17/2022] Open
Abstract
The screening for alternatives to antibiotics is an urgent need for the pharmaceutical industry. One of these alternatives seems to be the citrus fruit extracts, which are showing a significant antibacterial activity against Gram-negative and Gram-positive bacteria. One of these citrus extracts, named BIOCITRO®, is assessed in this study to elucidate its bacteriostatic and bactericidal effect and its mode of action on the important pathogens Campylobacter coli, C. jejuni, Escherichia coli, Salmonella enterica ssp. enterica, Clostridium difficile, C. perfringens, and Staphylococcus aureus. For most of the strains tested of these bacteria the product was bactericidal as well as bacteriostatic at the same concentration, and the minimum bactericidal concentrations ranged from 16 to 256 μg/mL. Regarding the mode of action, important changes in the permeability, structure, composition and morphology of the bacterial envelope were evidenced using flow cytometry, Fourier transform infrared spectroscopy and scanning electron microscopy. The main effect of the product was found over carbohydrates and polysaccharides, inducing the release of microvesicles by the cells in addition to other specific effects. During the study, the techniques used were evaluated to clarify their contribution to the knowledge of the mode of action of the product. The survival test elucidated whether the modifications displayed using other techniques affected the viability of the cells or on the contrary, the cells remained viable even with evident changes in their structure, composition or morphology. Flow cytometry showed that for some strains the proportion of cells detected with altered membrane permeability were higher than the number of non-viable cells, and therefore the damage did not affect the viability of some cells. On the contrary, some cells observed using scanning electron microscopy with no apparent damage, were demonstrated non-viable using the survival test, making this technique indispensable in studies of the mode of action of antimicrobials to make a correct interpretation of the data from other techniques.
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Affiliation(s)
- Pedro J. G. de Nova
- Department of Animal Health, Faculty of Veterinary, Universidad de León, León, Spain
| | - Ana Carvajal
- Department of Animal Health, Faculty of Veterinary, Universidad de León, León, Spain
| | - Miguel Prieto
- Institute of Food Science and Technology, Universidad de León, León, Spain
- Department of Food Hygiene and Technology, Faculty of Veterinary, Universidad de León, León, Spain
| | - Pedro Rubio
- Department of Animal Health, Faculty of Veterinary, Universidad de León, León, Spain
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48
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Garcia IM, Rodrigues SB, Leitune VCB, Collares FM. Antibacterial, chemical and physical properties of sealants with polyhexamethylene guanidine hydrochloride. Braz Oral Res 2019; 33:e019. [PMID: 30892413 DOI: 10.1590/1807-3107bor-2019.vol33.0019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 01/28/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to evaluate the influence of polyhexamethylene guanidine hydrochloride (PHMGH) in the physico-chemical properties and antibacterial activity of an experimental resin sealant. An experimental resin sealant was formulated with 60 wt.% of bisphenol A glycol dimethacrylate and 40 wt.% of triethylene glycol dimethacrylate with a photoinitiator/co-initiator system. PHMGH was added at 0.5 (G0.5%), 1 (G1%), and 2 (G2%) wt.% and one group remained without PHMGH, used as control (GCTRL). The resin sealants were analyzed for degree of conversion (DC), Knoop hardness (KHN), and softening in solvent (ΔKHN), ultimate tensile strength (UTS), contact angle (θ) with water or α-bromonaphthalene, surface free energy (SFE), and antibacterial activity against Streptococcus mutans for biofilm formation and planktonic bacteria. There was no significant difference for DC (p > 0.05). The initial Knoop hardness ranged from 17.30 (±0.50) to 19.50 (± 0.45), with lower value for GCTRL (p < 0.05). All groups presented lower KHN after immersion in solvent (p < 0.05). The ΔKHN ranged from 47.22 (± 4.30) to 57.22 (± 5.42)%, without significant difference (p > 0.05). The UTS ranged from 54.72 (± 11.05) MPa to 60.46 (± 6.50) MPa, with lower value for G2% (p < 0.05). PHMGH groups presented no significant difference compared to GCTRL in θ (p > 0.05). G2% showed no difference in SFE compared to GCTRL (p > 0.05). The groups with PHMGH presented antibacterial activity against biofilm and planktonic bacteria, with higher antibacterial activity for higher PHMGH incorporation (p < 0.05). PHMGH provided antibacterial activity for all resin sealant groups and the addition up to 1 wt.% showed reliable physico-chemical properties, maintaining the caries-protective effect of the resin sealant over time.
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Affiliation(s)
- Isadora Martini Garcia
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Dental Materials Laboratory, Porto Alegre, RS, Brazil
| | - Stéfani Becker Rodrigues
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Dental Materials Laboratory, Porto Alegre, RS, Brazil
| | - Vicente Castelo Branco Leitune
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Dental Materials Laboratory, Porto Alegre, RS, Brazil
| | - Fabrício Mezzomo Collares
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Dental Materials Laboratory, Porto Alegre, RS, Brazil
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49
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Santhakumar K, Viswanath V. Novel Methods for Efficacy Testing of Disinfectants – Part I. TENSIDE SURFACT DET 2019. [DOI: 10.3139/113.110597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
The pathogens which are the effective transmitters of various infections pose a serious problem in restraining their interference in maintaining a sterile environment. The practical applicability of traditional methods of disinfection is restricted due to their cumbersomeness, toxic product generation, and cost-effectiveness. Therefore, the objective of the current review is to elaborate the efficacies and limitations of various novel disinfectants that can show their activity in a few minutes of treatment. The expected outcome would be feasibility for selection of a favorable disinfectant through various technologies that can generate uniform results and form a basis for the true estimation required parameters. Hence, the current paper ends with the consideration of unique new techniques that distinguishes their simplicity, safety, and efficacy in generating a sterile environment.
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Affiliation(s)
| | - Valikala Viswanath
- Carbon dioxide Research and Green Technologies Center , VIT University, Tamil Nadu , India
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50
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Moshynets O, Bardeau JF, Tarasyuk O, Makhno S, Cherniavska T, Dzhuzha O, Potters G, Rogalsky S. Antibiofilm Activity of Polyamide 11 Modified with Thermally Stable Polymeric Biocide Polyhexamethylene Guanidine 2-Naphtalenesulfonate. Int J Mol Sci 2019; 20:E348. [PMID: 30654458 PMCID: PMC6358945 DOI: 10.3390/ijms20020348] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 12/30/2018] [Accepted: 01/08/2019] [Indexed: 01/23/2023] Open
Abstract
The choice of efficient antimicrobial additives for polyamide resins is very difficult because of their high processing temperatures of up to 300 °C. In this study, a new, thermally stable polymeric biocide, polyhexamethylene guanidine 2-naphtalenesulfonate (PHMG-NS), was synthesised. According to thermogravimetric analysis, PHMG-NS has a thermal degradation point of 357 °C, confirming its potential use in joint melt processing with polyamide resins. Polyamide 11 (PA-11) films containing 5, 7 and 10 wt% of PHMG-NS were prepared by compression molding and subsequently characterised by FTIR spectroscopy. The surface properties were evaluated both by contact angle, and contactless induction. The incorporation of 10 wt% of PHMG-NS into PA-11 films was found to increase the positive surface charge density by almost two orders of magnitude. PA-11/PHMG-NS composites were found to have a thermal decomposition point at about 400 °C. Mechanical testing showed no change of the tensile strength of polyamide films containing PHMG-NS up to 7 wt%. Antibiofilm activity against the opportunistic bacteria Staphylococcus aureus and Escherichia coli was demonstrated for films containing 7 or 10 wt% of PHMG-NS, through a local biocide effect possibly based on an influence on the bacterial eDNA. The biocide hardly leached from the PA-11 matrix into water, at a rate of less than 1% from its total content for 21 days.
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Affiliation(s)
- Olena Moshynets
- Institute of Molecular Biology and Genetics of NAS of Ukraine, 03143 Kyiv, Ukraine.
| | - Jean-François Bardeau
- Institut des Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Mans, 72085 Le Mans, France.
| | - Oksana Tarasyuk
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of NAS of Ukraine, 02160 Kyiv, Ukraine.
| | - Stanislav Makhno
- Chuiko Institute of Surface Chemistry of NAS of Ukraine, 03680 Kyiv, Ukraine.
| | - Tetiana Cherniavska
- Chuiko Institute of Surface Chemistry of NAS of Ukraine, 03680 Kyiv, Ukraine.
| | - Oleg Dzhuzha
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of NAS of Ukraine, 02160 Kyiv, Ukraine.
| | - Geert Potters
- Antwerp Maritime Academy, Noordkasteel Oost 6, 2030 Antwerp, Belgium.
- University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
| | - Sergiy Rogalsky
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of NAS of Ukraine, 02160 Kyiv, Ukraine.
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