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Gutiérrez-Santana JC, Rosas-Espinosa V, Martinez E, Casiano-García E, Coria-Jiménez VR. Metal Nanoparticle-Based Biosensors for the Early Diagnosis of Infectious Diseases Caused by ESKAPE Pathogens in the Fight against the Antimicrobial-Resistance Crisis. BIOSENSORS 2024; 14:339. [PMID: 39056615 PMCID: PMC11274948 DOI: 10.3390/bios14070339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 07/28/2024]
Abstract
The species included in the ESKAPE group (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and the genus Enterobacter) have a high capacity to develop antimicrobial resistance (AMR), a health problem that is already among the leading causes of death and could kill 10 million people a year by 2050. The generation of new potentially therapeutic molecules has been insufficient to combat the AMR "crisis", and the World Health Organization (WHO) has stated that it will seek to promote the development of rapid diagnostic strategies. The physicochemical properties of metallic nanoparticles (MNPs) have made it possible to design biosensors capable of identifying low concentrations of ESKAPE bacteria in the short term; other systems identify antimicrobial susceptibility, and some have been designed with dual activity in situ (bacterial detection and antimicrobial activity), which suggests that, in the near future, multifunctional biosensors could exist based on MNPs capable of quickly identifying bacterial pathogens in clinical niches might become commercially available. This review focuses on the use of MNP-based systems for the rapid and accurate identification of clinically important bacterial pathogens, exhibiting the necessity for exhaustive research to achieve these objectives. This review focuses on the use of metal nanoparticle-based systems for the rapid and accurate identification of clinically important bacterial pathogens.
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Affiliation(s)
- Juan Carlos Gutiérrez-Santana
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
| | - Viridiana Rosas-Espinosa
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
| | - Evelin Martinez
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Coyoacán C.P. 04960, Mexico;
| | - Esther Casiano-García
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Coyoacán C.P. 04960, Mexico;
| | - Victor Rafael Coria-Jiménez
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
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Koňáriková K, Girašková GM, Žitňanová I, Dvořáková M, Rollerová E, Scsuková S, Bizik J, Janubová M, Muchová J. Biological analyses of the effects of TiO2 and PEG-b-PLA nanoparticles on three-dimensional spheroid-based tumor. Physiol Res 2023; 72:S257-S266. [PMID: 37888969 PMCID: PMC10669953 DOI: 10.33549/physiolres.935152] [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: 06/07/2023] [Accepted: 06/27/2023] [Indexed: 12/01/2023] Open
Abstract
The aim of our study was to monitor the antiproliferative/ cytotoxic and genotoxic effects of both, poly(ethylene glycol)-block-poly(lactic acid) (PEG-b-PLA) and titanium dioxide (TiO2) nanoparticles on the tumor (HT-29, MCF-7, U118MG) and healthy (HEK-293T) cell lines during 2D cultivation and during cultivation in the spheroid form (3D cultivation). Cells or spheroids were cultivated with nanoparticles (0.01, 0.1, 1, 10, 50, and 100 ?g/ml) for 72 hours. The cytotoxic effect was determined by the MTT test and the genotoxic effect by the comet assay. We found that 2D cultivation of tumor cell lines with PEG-b-PLA and TiO2 nanoparticles had an anti-proliferative effect on human colon cancer cell line HT-29, human breast cancer cell line MCF-7, human glioma cell line U-118MG during 72h cultivation, but not on control/healthy HEK-293T cells. At the concentrations used, the tested nanoparticles caused no cytotoxic effect on tumor cell lines. Nanoparticles PEG-b-PLA induced significant damage to DNA in HT-29 and MCF-7 cells, while TiO2 nanoparticles in MCF-7 and U-118MG cells. Only PEG-b-PLA nanoparticles caused cytotoxic (IC50 = 7 mikrog/ml) and genotoxic effects on the healthy cell line HEK-293T after 72h cultivation. The cells which were cultivated in spheroid forms were more sensitive to both types of nanoparticles. After 72h cultivation, we observed the cytotoxic effect on both, the tumor and healthy cell lines.
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Affiliation(s)
- K Koňáriková
- Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic.
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Leite KLDF, Martins ML, Dias MDO, Tavares FOM, Justino IBDS, Cabral LM, Neves ADA, Cavalcanti YW, Maia LC. In vitro and in situ caries-preventive effect of a new combined fluoride and calcium experimental nanocomposite solution. Braz Dent J 2023; 34:119-128. [PMID: 37466519 PMCID: PMC10355272 DOI: 10.1590/0103-6440202305460] [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: 03/09/2023] [Accepted: 05/25/2023] [Indexed: 07/20/2023] Open
Abstract
To assess the in vitro and in situ effect of experimental combined fluoride and calcium nanocomposite solutions on dental caries prevention. Nanocompound mesoporous silica (MS) with calcium (Ca) and sodium fluoride (NaF) - (MSCaNaF); MS with NaF (MSNaF), NaF solution (positive control), and deionized water (negative control - CG) were studied. The specimens (n=130) were submitted in vitro to a multispecies biofilm in the presence of 2% sucrose. After 24 h and 48 h, the culture medium pH, the percent of surface mineral loss (%SML), and lesion depth (ΔZ) were analyzed. In the in situ study, 10 volunteers participated in four phases of 7-days each. The products were applied on the specimens (n=240) before 20% sucrose solution drips. The polysaccharides (SEPS and IEPS), %SML and roughness (Sa) were evaluated. There was an in vitro decrease in pH values in 24h and 48h, compared to baseline. The MSCaNaF and MSNaF groups obtained lower values of %SML and ΔZ (p < 0.05) than CG and NaF after 24h and were similar to NaF after 48h (p<0.05). In situ results showed similar SEPS and IEPS among all groups after 48h. An after 7-days, the nanocomposites had similar values (p>0.05), while NaF was similar to CG (p>0.05). After 48h, the MSCaNaF and MSNaF reduced the %SML (p<0.05). After 7-days, both experimental nanocomposites were similar to NaF (p>0.05). Regarding Sa, MSCaNaF was better than NaF for both periods (p<0.05). The nanocomposites controlled the in vitro and in situ enamel demineralization, mainly in the initial periods.
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Affiliation(s)
- Karla Lorene de França Leite
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mariana Leonel Martins
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Millene de Oliveira Dias
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernanda Oliveira Miranda Tavares
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Lúcio Mendes Cabral
- Department of Drugs and Medicines, School of Pharmacy, Universidade
Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Aline de Almeida Neves
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Lucianne Cople Maia
- Department of Pediatric Dentistry and Orthodontics, School of
Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Queiroz Schmidt FM, Serna González CV, Mattar RC, Lopes LB, dos Santos MF, Santos VLCDG. Topical application of a cream containing nanoparticles with vitamin E for radiodermatitis prevention in women with breast cancer: A randomized, triple-blind, controlled pilot trial study. Eur J Oncol Nurs 2022; 61:102230. [DOI: 10.1016/j.ejon.2022.102230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 10/18/2022] [Accepted: 10/25/2022] [Indexed: 11/04/2022]
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Yun Z, Qin D, Wei F, Xiaobing L. Application of antibacterial nanoparticles in orthodontic materials. NANOTECHNOLOGY REVIEWS 2022. [DOI: 10.1515/ntrev-2022-0137] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
During the orthodontic process, increased microbial colonization and dental plaque formation on the orthodontic appliances and auxiliaries are major complications, causing oral infectious diseases, such as dental caries and periodontal diseases. To reduce plaque accumulation, antimicrobial materials are increasingly being investigated and applied to orthodontic appliances and auxiliaries by various methods. Through the development of nanotechnology, nanoparticles (NPs) have been reported to exhibit excellent antibacterial properties and have been applied in orthodontic materials to decrease dental plaque accumulation. In this review, we present the current development, antibacterial mechanisms, biocompatibility, and application of antibacterial NPs in orthodontic materials.
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Affiliation(s)
- Zhang Yun
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
| | - Du Qin
- Department of Stomatology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China , Chengdu , 610072 , China
| | - Fei Wei
- Department of Stomatology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China , Chengdu , 610072 , China
| | - Li Xiaobing
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
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Pan X, Zhang Y, Zhao Y, Yao S, Guan C, Wang L, Chen L. Inhibitory activity and mechanism of silver nanoparticles against herpes simplex virus type 1. Arch Virol 2022; 167:1619-1636. [PMID: 35648293 DOI: 10.1007/s00705-022-05467-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 04/26/2022] [Indexed: 12/01/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) is a common pathogen that infects 50-90% of the world's population and causes a variety of diseases, some of which can be life-threatening. Silver nanoparticles (AgNPs) have been shown to have broad-spectrum antiviral activity. In this study, we investigated the activity of AgNPs against HSV-1 and found that AgNPs effectively inhibited plaque formation and HSV-1 progeny production, reduced the genomic load, and interfered with HSV-1 mRNA expression and protein synthesis. Transmission electron microscopy showed that AgNPs interacted with HSV-1 and altered the shape of the viral particles. Furthermore, AgNPs affected the entry of HSV-1 into cells as well as their release and cell-to-cell spread. AgNPs were also found to downregulate the expression of pro-inflammatory cytokines upon HSV-1 infection. Combined treatment with AgNPs and acyclovir (ACV) confirmed that AgNPs significantly enhanced the inhibitory effect of ACV against HSV-1. Our findings may contribute to an understanding of the mechanism of the antiviral effect of AgNPs against HSV-1 and help to provide a theoretical basis for their clinical application.
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Affiliation(s)
- Xuanhe Pan
- Department of Clinical Laboratory, Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - Yapeng Zhang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Yiming Zhao
- Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, No. 172, Tongzipo road, Yuelu District, Changsha, 410013, Hunan, China
| | - Siqi Yao
- Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, No. 172, Tongzipo road, Yuelu District, Changsha, 410013, Hunan, China
| | - Chaxiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Linqian Wang
- Department of Clinical Laboratory, the Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, No. 283, Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, China.
| | - Liyu Chen
- Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, No. 172, Tongzipo road, Yuelu District, Changsha, 410013, Hunan, China.
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Torres-Betancourt JA, Hernandez-Delgadillo R, Flores-Treviño JJ, Solís-Soto JM, Pineda-Aguilar N, Nakagoshi-Cepeda MAA, Isela Sánchez-Nájera R, Chellam S, Cabral-Romero C. Antimicrobial potential of AH Plus supplemented with bismuth lipophilic nanoparticles on E. faecalis isolated from clinical isolates. J Appl Biomater Funct Mater 2022; 20:22808000211069221. [PMID: 35114826 DOI: 10.1177/22808000211069221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The objective of this study was to determine the antimicrobial potential of AH plus supplemented with bismuth lipophilic nanoparticles (BisBAL NPs) on the growth of Enterococcus faecalis isolated from patients with endodontic infections. BisBAL NPs, synthesized with the colloidal method, were characterized, in its pure form or AH Plus-absorbed, by energy-dispersive X-ray spectroscopy and scanning electron microscopy (EDS-SEM). Antimicrobial activity was evaluated with disc diffusion assays, and antibiofilm activity with fluorescence microscopy. BisBAL NP-supplemented AH Plus had a 4.9 times higher antimicrobial activity than AH Plus alone (p = 0.0001). In contrast to AH Plus alone, AH Plus supplemented with BisBAL NP inhibited E. faecalis biofilm formation. The sealing properties of AH plus were not modified by the incorporation of BisBAL NPs, which was demonstrated by a 12-day split-chamber leakage assay with daily inoculation, which was used to evaluate the possible filtration of E. faecalis. Finally, BisBAL NP-supplemented AH plus-BisBAL NPs was not cytotoxic for cultured human gingival fibroblasts. Their viability was 83.7% to 89.9% after a 24-h exposure to AH Plus containing 50 and 10 µM BisBAL NP, respectively. In conclusion, BisBAL NP-supplemented AH Plus constitutes an innovative nanomaterial to prevent re-infection in endodontic patients without cytotoxic effects.
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Affiliation(s)
| | - Rene Hernandez-Delgadillo
- Universidad Autónoma de Nuevo león, UANL, Facultad de Odontología, Laboratorio de Biología Molecular, Monterrey, Nuevo León, México
| | - Jorge Jaime Flores-Treviño
- Universidad Autónoma de Nuevo león, UANL, Facultad de Odontología, Laboratorio de Biología Molecular, Monterrey, Nuevo León, México
| | - Juan Manuel Solís-Soto
- Universidad Autónoma de Nuevo león, UANL, Facultad de Odontología, Laboratorio de Biología Molecular, Monterrey, Nuevo León, México
| | - Nayely Pineda-Aguilar
- Centro de Investigaciones en Materiales Avanzados, CIMAV Unidad Monterrey, Nuevo León, México
| | | | - Rosa Isela Sánchez-Nájera
- Universidad Autónoma de Nuevo león, UANL, Facultad de Odontología, Laboratorio de Biología Molecular, Monterrey, Nuevo León, México
| | | | - Claudio Cabral-Romero
- Universidad Autónoma de Nuevo león, UANL, Facultad de Odontología, Laboratorio de Biología Molecular, Monterrey, Nuevo León, México
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Schmidt FMQ, González CVS, Mattar RC, Lopes LB, Dos Santos MF, de Gouveia Santos VLC. Topical cream containing nanoparticles with vitamin E to prevent radiodermatitis in women with breast cancer: a clinical trial protocol. J Wound Care 2021; 30:S44-S50. [PMID: 34120463 DOI: 10.12968/jowc.2021.30.sup6.s44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Little is known about the efficacy of products aiming to prevent radiodermatitis, which affects between 90-95% of women with breast cancer. The use of antioxidants is promising, however, there is a lack of evidenceon their effectiveness. Here, the authors present a clinical trial protocol to evaluate the effects of applying a cream containing nanoparticles with vitamin E to prevent radiodermatitis in patients with breast cancer. METHOD The protocol recommends that 108 women with breast cancer, receiving radiotherapy, are included in this triple-blinded, randomized, controlled study at an oncology hospital. Patients will be divided in three groups of 36 individuals each: group A will receive a cream with lipid nanoparticles and vitamin E, group B will receive a cream without nanoparticles nor vitamin E, and group C will receive a cream with nanoparticles without vitamin E. The primary endpoints will evaluate the incidence, degree, and time of onset of radiodermatitis. The secondary endpoints will focus on the quality of life, symptoms, and local temperature. Patients will be assessed three times a week, from the start of their radiotherapy treatment to two weeks after the last session. This protocol was approved by the research ethics committee of the institutions involved and registered on an international trials database.
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Affiliation(s)
| | | | | | | | - Marinilce Fagundes Dos Santos
- Cell Biology and Development Department. 4-5 Universidade de São Paulo, Instituto de Ciências Biomédicas (ICB-USP), Sao Pablo, Brazil
| | - Vera L C de Gouveia Santos
- Department of Medial-Surgical Nursing. 2-6 Universidade de São Paulo, Escola de Enfermagem (EEUSP), Sao Paulo, Brazil
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Franiak-Pietryga I, Ziemba B, Sikorska H, Jander M, Appelhans D, Bryszewska M, Borowiec M. Neurotoxicity of poly(propylene imine) glycodendrimers. Drug Chem Toxicol 2020; 45:1484-1492. [DOI: 10.1080/01480545.2020.1843472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ida Franiak-Pietryga
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
- GeneaMed LTD, Lodz, Poland
- University of California San Diego, Moores Cancer Center, San Diego, CA, USA
| | - Barbara Ziemba
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
- GeneaMed LTD, Lodz, Poland
| | | | | | | | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Maciej Borowiec
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
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De Stefani A, Bruno G, Preo G, Gracco A. Application of Nanotechnology in Orthodontic Materials: A State-of-the-Art Review. Dent J (Basel) 2020; 8:dj8040126. [PMID: 33182424 PMCID: PMC7712537 DOI: 10.3390/dj8040126] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology refers to the science that manipulates matter at molecular and atomic levels, and studies matter at the nanoscale level to detect and exploit the useful properties that derive from these dimensions; materials with components less than 100 nm in at least one dimension are called nanomaterials. Nanotechnology is applied in many fields, such as medicine (nanomedicine) and dentistry (nano-dentistry). The purpose of these innovations and research in this field is to improve human life and health. This article aims to summarize and describe what the most recent and known innovations of nanotechnology in dentistry are, focusing on and paying particular attention to the branch that is orthodontics, and on the application of new nanomaterials in the realization, for example, of orthodontic elastomeric ligatures, orthodontic power chains, and orthodontic miniscrews. We also address a very important topic in orthodontics, which is how to reduce the friction force.
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Lima RA, de Souza SLX, Lima LA, Batista ALX, de Araújo JTC, Sousa FFO, Rolim JPML, Bandeira TDJPG. Antimicrobial effect of anacardic acid-loaded zein nanoparticles loaded on Streptococcus mutans biofilms. Braz J Microbiol 2020; 51:1623-1630. [PMID: 32562202 DOI: 10.1007/s42770-020-00320-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 06/11/2020] [Indexed: 11/25/2022] Open
Abstract
Bacterial biofilms play a key role in the pathogenesis of major oral diseases. Nanoparticles open new paths for drug delivery in complex structures such as biofilms. This study evaluated the antimicrobial effect of zein nanoparticles containing anacardic acid (AA) extracted from cashew shells of Anacardium occidentale on in vitro Streptococcus mutans biofilm formation and mature biofilms. The minimum inhibitory concentration (MIC), minimum bacterial concentration (MBC), and antibiofilm assays were performed. Streptococcus mutans UA159 biofilms were formed on saliva-coated hydroxyapatite disk for 5 days. To evaluate the preventive effect on biofilm formation, before contact with the inoculum, the disks were immersed once for 2 min in (1) hydroethanolic solution; (2) blank zein nanoparticles; (3) zein nanoparticles containing AA; and (4) 0.12% chlorhexidine gluconate. To determine the effect against mature biofilms, the disks containing 5-day preformed biofilms were further treated using the same procedure. The bacterial viability and dry weight were determined for both assays and used to compare the groups using ANOVA followed by Tukey's test (p < 0.05). Both MIC and MBC for AA-loaded zein nanoparticles were 0.36 μg/mL. Groups 3 and 4 were very effective in inhibiting S. mutans biofilm formation, as no colony-forming units were detected. In contrast, for mature biofilms, no difference in bacterial viability (p = 0.28) or dry weight (p = 0.09) was found between the treatments. Therefore, the AA-based nanoformulation presented very high inhibitory and bactericidal activities against planktonic S. mutans, and the results indicate a strong antiplaque effect. However, the formulation showed no antimicrobial effect on the established biofilm.
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Affiliation(s)
- Ramille Araújo Lima
- Centro Universitário Christus (UNICHRISTUS), Rua João Adolfo Gurgel, 133, Cocó, Fortaleza, CE, 60190-060, Brazil
| | | | - Lais Aragão Lima
- Centro Universitário Christus (UNICHRISTUS), Rua João Adolfo Gurgel, 133, Cocó, Fortaleza, CE, 60190-060, Brazil
| | - Ana Larissa Ximenes Batista
- Centro Universitário Christus (UNICHRISTUS), Rua João Adolfo Gurgel, 133, Cocó, Fortaleza, CE, 60190-060, Brazil
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Menikheim SD, Lavik EB. Self-healing biomaterials: The next generation is nano. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1641. [PMID: 32359015 DOI: 10.1002/wnan.1641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/16/2020] [Accepted: 04/02/2020] [Indexed: 12/19/2022]
Abstract
The U.S. Agency for Healthcare Research and Quality estimates that there are over 1 million total hip and total knee replacements each year in the U.S. alone. Twenty five percent of those implants will experience aseptic loosening, and bone cement failure is an important part of this. Bone cements are based on poly(methyl methacrylate) (PMMA) systems that are strong but brittle polymers. PMMA-based materials are also essential to modern dental fillings, and likewise, the failure rates are high with lifetimes of 3-10 years. These brittle polymers are an obvious target for self-healing systems which could reduce revision surgeries and visits to dentist. Self-healing polymers have been described in the literature since 1996 and examples from Roman times are known, but their application in medicine has been challenging. This review looks at the development of self-healing biomaterials for these applications and the challenges that lie between development and the clinic. Many of the most promising formulations involve introducing nanoscale components which offer substantial potential benefits over their microscale counterparts especially in composite systems. There is substantial promise for translation, but issues with toxicity, robustness, and reproducibility of these materials in the complex environment of the body must be addressed. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Implantable Materials and Surgical Technologies > Nanomaterials and Implants.
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Affiliation(s)
- Sydney D Menikheim
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, Maryland, USA
| | - Erin B Lavik
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, Maryland, USA
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Gutiérrez-Santana JC, Toscano-Garibay JD, López-López M, Coria-Jiménez VR. Aptamers coupled to nanoparticles in the diagnosis and treatment of microbial infections. Enferm Infecc Microbiol Clin 2020; 38:331-337. [PMID: 31948707 DOI: 10.1016/j.eimc.2019.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/04/2019] [Accepted: 12/09/2019] [Indexed: 12/14/2022]
Abstract
There are nanoparticles with remarkable antibacterial characteristics and aptamers able to recognize specific pathogenic bacteria with high affinity and specificity. The combination of both systems has been used to design rapid bacterial detection methods with excellent detection limits. Likewise, the synergism between aptamers and nanoparticles have allowed to optimize the antimicrobial activity of antibiotics and other nanostructures providing them with activity bacterium-specific, turning into attractive and promising tools to fight against bacteria resistant to multiple antimicrobials.
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Affiliation(s)
- Juan Carlos Gutiérrez-Santana
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Ciudad de México, México; Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de México, México.
| | - Julia Dolores Toscano-Garibay
- Unidad de Investigación en Microbiología y Toxicología, Dirección de Investigación, Hospital Juárez de México, Ciudad de México, México
| | - Marisol López-López
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de México, México
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Schmidt FMQ, González CVS, Mattar RC, Lopes LB, Santos MFD, de Gouveia Santos VLC. Topical cream containing nanoparticles with vitamin E to prevent radiodermatitis in women with breast cancer: a clinical trial protocol. J Wound Care 2020; 29:18-26. [PMID: 33249985 DOI: 10.12968/jowc.2020.29.latam_sup_1.18.eng] [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: 11/12/2022]
Abstract
OBJECTIVE Little is known about the efficacy of products aiming to prevent radiodermatitis, which affects between 90-95% of women with breast cancer. The use of antioxidants is promising, however, there is a lack of evidenceon their effectiveness. Here, the authors present a clinical trial protocol to evaluate the effects of applying a cream containing nanoparticles with vitamin E to prevent radiodermatitis in patients with breast cancer. METHOD The protocol recommends that 108 women with breast cancer, receiving radiotherapy, are included in this triple-blinded, randomized, controlled study at an oncology hospital. Patients will be divided in three groups of 36 individuals each: group A will receive a cream with lipid nanoparticles and vitamin E, group B will receive a cream without nanoparticles nor vitamin E, and group C will receive a cream with nanoparticles without vitamin E. The primary endpoints will evaluate the incidence, degree, and time of onset of radiodermatitis. The secondary endpoints will focus on the quality of life, symptoms, and local temperature. Patients will be assessed three times a week, from the start of their radiotherapy treatment to two weeks after the last session. This protocol was approved by the research ethics committee of the institutions involved and registered on an international trials database.
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Affiliation(s)
| | - Carol V Serna González
- Graduate Program in Adult Health Nursing, Universidade de São Paulo, Escola de Enfermagem (EEUSP), Sao Paulo, Brazil
| | | | - Luciana Biagini Lopes
- Pharmacology Department, Universidade de São Paulo, Instituto de Ciências Biomédicas (ICB-USP), Sao Pablo, Brazil
| | - Marinilce Fagundes Dos Santos
- Cell Biology and Development Department, Universidade de São Paulo, Instituto de Ciências Biomédicas (ICB-USP), Sao Pablo, Brazil
| | - Vera L C de Gouveia Santos
- Department of Medial-Surgical Nursing, Universidade de São Paulo, Escola de Enfermagem (EEUSP), Sao Paulo, Brazil
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Schmidt FMQ, González CVS, Mattar RC, Lopes LB, Santos MFD, de Gouveia Santos VLC. Clinical protocol for the topical use of a cream with nanoparticles and vitamin E to prevent radiodermatitis in patients with breast cancer]. J Wound Care 2020; 29:18-26. [PMID: 31859604 DOI: 10.12968/jowc.2020.29.latam_sup_1.18] [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] [Indexed: 03/28/2024]
Abstract
Sinopsis: Objetivo: Poco se conoce sobre la eficacia de productos para la prevención de radiodermatitis, que afecta al 90–95% de las mujeres con cáncer de mama. El uso de antioxidantes es promisorio, sin embargo, poco estudiado. Los autores desarrollaron un protocolo de ensayo clínico para evaluar el efecto potencial de la aplicación de crema con nanopartículas con vitamina E para prevenir radiodermatitis aguda en mujeres con cáncer de mama. Método: El protocolo sugiere que 108 mujeres adultas con cáncer de mama, que estén recibiendo radioterapia, sean incluidas en este ensayo clínico, controlado, aleatorizado y triple ciego, en un hospital oncológico. Se prevé la distribución de pacientes en tres grupos de 36 personas: el grupo A recibirá una crema con nanopartículas lipídicas con vitamina E, el grupo B obtendrá una crema sin nanopartículas ni vitamina E, y el grupo C usará una crema con nanopartículas sin vitamina E. Los resultados primarios evaluarán la incidencia, el grado y el tiempo de surgimiento de la radiodermatitis. Los resultados secundarios se centrarán en la calidad de vida, los síntomas y la temperatura local. Las pacientes serán evaluadas tres veces por semana, desde el inicio de la radioterapia hasta dos semanas después de la última sesión. El presente proyecto fue aprobado por el comité de ética en investigación de las instituciones involucradas.
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Affiliation(s)
- Fernanda Mateus Queiróz Schmidt
- 1Enfermera, estomaterapeuta, MSc, PhD, profesora doctora, Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais (IFSULDEMINAS), Pasos, Minas Gerais, Brasil
| | - Carol V Serna González
- 2Enfermera, estomaterapeuta, MSc, estudiante de PhD, Programa de Posgrado en Enfermería en la Salud del Adulto (PROESA), Escola de Enfermagem, Universidade de São Paulo, San Pablo, Brasil
| | - Rodrigo Calixto Mattar
- 3Médico radioterapeuta, Hospital Regional de Câncer, Santa Casa de Misericórdia de Passos, Minas Gerais, Brasil
| | - Luciana Biagini Lopes
- 4Farmaceuta, MSc, PhD, profesora asociada, Departamento de Farmacología, Instituto de Ciências Biomédicas, Universidade de São Paulo, San Pablo, Brasil
| | - Marinilce Fagundes Dos Santos
- 5Odontóloga, MSc, PhD, profesora titular, Departamento de Biología Celular y del desarrollo, Instituto de Ciências Biomédicas, Universidade de São Paulo, San Pablo, Brasil
| | - Vera L C de Gouveia Santos
- 6Enfermera, estomaterapeuta, MSc, PhD, profesora titular, Departamento de Enfermería Médico-quirúrgica, Escola de Enfermagem, Universidade de São Paulo, San Pablo, Brasil
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Carton F, Repellin M, Lollo G, Malatesta M. Alcian blue staining to track the intracellular fate of hyaluronic-acid-based nanoparticles at transmission electron microscopy. Eur J Histochem 2019; 63. [PMID: 31833331 PMCID: PMC6927094 DOI: 10.4081/ejh.2019.3086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 12/11/2019] [Indexed: 02/08/2023] Open
Abstract
The main step in the assessment of nanomaterial safety and suitability for biomedical use is the location and the dynamic tracking of nanoparticles (NPs) inside cells or tissues. To precisely investigate the uptake mechanisms and intracellular fate of NPs, transmission electron microscopy is the technique of choice; however, the detection of NPs may sometimes be problematic. In fact, while NPs containing strongly electron dense (e.g. metal) components do not require specific detection methods at the ultrastructural level, organic NPs are hardly detectable in the intracellular environment due to their intrinsic moderate electron density. In this study, the critical-electrolyte-concentration Alcian Blue method set up by Schofield et al. in 1975 was applied to track hyaluronic-acidbased NPs in muscle cells in vitro. This long-established histochemical method proved to be a powerful tool allowing to identify not only whole NPs while entering cells and moving into the cytoplasm, but also their remnants following lysosomal degradation and extrusion.
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Affiliation(s)
- Flavia Carton
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona.
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Liu Y, Khan AR, Du X, Zhai Y, Tan H, Zhai G. Progress in the polymer-paclitaxel conjugate. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Tavakoli A, Hashemzadeh MS. Inhibition of herpes simplex virus type 1 by copper oxide nanoparticles. J Virol Methods 2019; 275:113688. [PMID: 31271792 DOI: 10.1016/j.jviromet.2019.113688] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 01/24/2023]
Abstract
There are accumulating reports of the emergence of drug-resistant strains of HSV-1 that have become a barrier to successful treatment of HSV-1 infection. Therefore, there is a pressing need to identify and evaluate alternative antiherpetic agents. The aim of the present study was to investigate the effect of copper oxide nanoparticles (CuO-NPs) on HSV-1 infection. The MTT assay was applied to examine the cytotoxic effects of CuO-NPs on Vero cells. Antiherpetic potency was determined using the TCID50 and quantitative Real-Time PCR assays. To evaluate the inhibitory impact of CuO-NPs on the expression of viral antigens, an indirect immunofluorescence assay (IFA) was performed. Acyclovir was used as a reference drug in all experiments. Exposure of HSV-1 with CuO-NPs at the highest non-toxic concentration (100 μg/mL) resulted in 2.8 log10 TCID50 reduction in infectious virus titer as compared with virus control (P < 0.0001). This concentration of CuO-NPs was associated with 83.3% inhibition rate, which was estimated based on the HSV-1 viral load compared to virus control. Our findings demonstrated that CuO-NPs are associated with a significant antiviral potency against HSV-1. This feature shows strong potential for CuO-NPs to be used in topical formulations for the treatment of orolabial or genital herpetic lesions.
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Affiliation(s)
- Ahmad Tavakoli
- Applied Virology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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