1
|
Karaoui M, Hsissou R, Alami M, Assouag M. Thermal, flow, and mechanical properties of composites based on polystyrene (PS) and snail shell powder (SSP) biofiller (PS/SSP). IRANIAN POLYMER JOURNAL 2023. [DOI: 10.1007/s13726-023-01151-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
2
|
Sabbagh F, Kim BS. Microneedles for transdermal drug delivery using clay-based composites. Expert Opin Drug Deliv 2022; 19:1099-1113. [DOI: 10.1080/17425247.2022.2119220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Farzaneh Sabbagh
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| |
Collapse
|
3
|
Toledano-Magaña Y, Flores-Santos L, Montes de Oca G, González-Montiel A, García-Ramos JC, Mora C, Saavedra-Ávila NA, Gudiño-Zayas M, González-Ramírez LC, Laclette JP, Carrero JC. Toxicological Evaluations in Macrophages and Mice Acutely and Chronically Exposed to Halloysite Clay Nanotubes Functionalized with Polystyrene. ACS OMEGA 2021; 6:29882-29892. [PMID: 34778661 PMCID: PMC8582073 DOI: 10.1021/acsomega.1c04367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Halloysite clay nanotubes (HNTs) have been proposed as highly biocompatible for several biomedical applications. Various polymers have been used to functionalize HNTs, but scarce information exists about polystyrene for this purpose. This work evaluated polystyrene-functionalized HNTs (FHNTs) by comparing its effects with non-FHNTs and innocuous talc powder on in vitro and in vivo models. Monocyte-derived human or murine macrophages and the RAW 264.7 cell line were treated with 0.01, 0.1, 1, and 100 μg mL-1 FHNTs, HNTs, or talc to evaluate the cytotoxic and cytokine response. Our results show that nanoclays did not cause cytotoxic damage to macrophages. Only the 100 μg mL-1 concentration induced slight proinflammatory cytokine production at short exposure, followed by an anti-inflammatory response that increases over time. CD1 mice treated with a single dose of 1, 2.5, or 5 mg Kg-1 of FHNTs or HNTs by oral and inhalation routes caused aluminum accumulation in the kidneys and lungs, without bodily signs of distress or histopathological changes in any treated mice, evaluated at 48 h and 30 days post-treatment. Nanoclay administration simultaneously by four different parenteral routes (20 mg Kg-1) or the combination of administration routes (parenteral + oral or parenteral + inhalation; 25 mg Kg-1) showed accumulation on the injection site and slight surrounding inflammation 30 days post-treatment. CD1 mice chronically exposed to HNTs or FHNTs in the bedding material (ca 1 mg) throughout the parental generation and two successive inbred generations for 8 months did not cause any inflammatory process or damage to the abdominal organs and the reproductive system of the mice of any of the generations, did not affect the number of newborn mice and their survival, and did not induce congenital malformations in the offspring. FHNTs showed a slightly less effect than HNTs in all experiments, suggesting that functionalization makes them less cytotoxic. Doses of up to 25 mg Kg-1 by different administration routes and permanent exposure to 1 mg of HNTs or FHNTs for 8 months seem safe for CD1 mice. Our in vivo and in vitro results indicate that nanoclays are highly biocompatible, supporting their possible safe use for future biomedical and general-purpose applications.
Collapse
Affiliation(s)
- Yanis Toledano-Magaña
- Escuela
de Ciencias de la Salud, Universidad Autónoma
de Baja California, Ensenada, Baja California 22890, México
| | | | - Georgina Montes de Oca
- CIATEQ
Centro de Tecnología Avanzada, Circuito de la Industria Pte Lte 11 Mza 3 No 11, Parque Industrial
Ex Hacienda Doña Rosa, Lerma Edo de
México 52004, México
| | | | - Juan-Carlos García-Ramos
- Escuela
de Ciencias de la Salud, Universidad Autónoma
de Baja California, Ensenada, Baja California 22890, México
| | - Conchi Mora
- Immunology
Unit, Department of Experimental Medicine, Faculty of Medicine, University of Lleida, Lleida 25002, Spain
- Institut
de Recerca Biomèdica Lleida (IRB-Lleida), Lleida 25002, Spain
| | | | - Marco Gudiño-Zayas
- Laboratorio
de Bioinformática, Unidad de Investigación en Medicina
Experimental, Facultad de Medicina, UNAM, Ciudad de México 06720, México
| | - Luisa-Carolina González-Ramírez
- Grupo
de Investigación “Análisis de Muestras Biológicas
y Forenses”, Carrera Laboratorio Clínico, Facultad de
Ciencias de la Salud, Universidad Nacional
de Chimborazo, Riobamba 0601003, Ecuador
| | - Juan P. Laclette
- Departamento
de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México,
Cd. Universitaria, Ciudad de México 04510, México
| | - Julio C. Carrero
- Departamento
de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México,
Cd. Universitaria, Ciudad de México 04510, México
| |
Collapse
|
4
|
Cerbu C, Ilaș VA, Czopowicz M, Potârniche AV, Bodart-Nieva EP, Mureșan EA, Kaba J, Spinu M, Pall E. The Use of Activated Micronized Zeolite Clinoptilolite as a Possible Alternative to Antibiotics and Chestnut Extract for the Control of Undifferentiated Calf Diarrhea: An In Vitro and In Vivo Study. Animals (Basel) 2020; 10:ani10122284. [PMID: 33287303 PMCID: PMC7761744 DOI: 10.3390/ani10122284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 01/30/2023] Open
Abstract
Simple Summary Today, zeolite has appeared as an interesting alternative for the symptomatic treatment of acute diarrhea. Therefore, this study aimed to investigate the properties of activated micronized (five microns) zeolite clinoptilolite (MZC) from Transylvania, Romania, first by testing it in vitro and then in vivo on calves with diarrhea. To assess the toxic potential of MZC, we performed a cell cytotoxicity assay on cells of bovine origin, while its antimicrobial activity was investigated on Escherichia coli. The uncontrolled in vivo study was carried out over 8 days on a fattening farm, with some 650 calves. Selected calves were randomly assigned to 4 groups of 20 individuals. Several combinations between activated MZC, chestnut extract, and oxytetracycline were tested. At the beginning of the study, all calves had diarrhea, while at the end of the study, the prevalence of diarrhea was significantly lower in all four groups (p < 0.001), including the ones treated with MZC. Due to its low cytotoxicity on the intestinal cells and with regards to the results we obtained in vivo, MZC could represent an alternative method to reducing the amount of antimicrobials needed for the symptomatic treatment of diarrhea in calves, therefore contributing to the reduction of the antimicrobial resistance phenomenon. Abstract Today, zeolite appears as an interesting alternative for the symptomatic treatment of acute diarrhea. Therefore, this study aimed to investigate the properties of activated micronized (5 microns) zeolite clinoptilolite (MZC) from Transylvania, Romania, first by testing it in vitro and then in vivo on calves with diarrhea. To assess the toxic potential of the MZC, we performed a cell cytotoxicity assay using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) technique on primary bovine intestinal epithelial cells (BIECs). The antimicrobial activity of MZC was investigated by measuring the minimal inhibitory concentration (MIC) on Escherichia coli (ATCC 25922). The uncontrolled in vivo study was carried out over 8 days on a fattening farm, with some 650 calves. Selected calves were randomly assigned to four groups of 20 individuals. Several combinations between MZC, chestnut extract, and oxytetracycline were tested. At the beginning of the study, all calves had diarrhea, while at the end of the study, the prevalence of diarrhea was significantly lower in all four groups (p < 0.001), including the ones treated with MZC. Due to its low cytotoxicity on the intestinal cells and with regards to the results we obtained in vivo, MZC may be considered an alternative for the symptomatic treatment of undifferentiated diarrhea in calves.
Collapse
Affiliation(s)
- Constantin Cerbu
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.V.P.); (E.-P.B.-N.); (M.S.); (E.P.)
- Correspondence: ; Tel.: +40-264-593-79
| | - Vlad Alexandru Ilaș
- Department of Reproduction, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania;
| | - Michał Czopowicz
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland; (M.C.); (J.K.)
| | - Adrian Valentin Potârniche
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.V.P.); (E.-P.B.-N.); (M.S.); (E.P.)
| | - Elisa-Paz Bodart-Nieva
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.V.P.); (E.-P.B.-N.); (M.S.); (E.P.)
| | - Elena Andruța Mureșan
- Food Engineering Department, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania;
| | - Jarosław Kaba
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland; (M.C.); (J.K.)
| | - Marina Spinu
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.V.P.); (E.-P.B.-N.); (M.S.); (E.P.)
| | - Emoke Pall
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.V.P.); (E.-P.B.-N.); (M.S.); (E.P.)
| |
Collapse
|
5
|
García-Villén F, Faccendini A, Miele D, Ruggeri M, Sánchez-Espejo R, Borrego-Sánchez A, Cerezo P, Rossi S, Viseras C, Sandri G. Wound Healing Activity of Nanoclay/Spring Water Hydrogels. Pharmaceutics 2020; 12:E467. [PMID: 32455541 PMCID: PMC7284335 DOI: 10.3390/pharmaceutics12050467] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND hydrogels prepared with natural inorganic excipients and spring waters are commonly used in medical hydrology. Design of these clay-based formulations continues to be a field scarcely addressed. Safety and wound healing properties of different fibrous nanoclay/spring water hydrogels were addressed. METHODS in vitro biocompatibility, by means of MTT assay, and wound healing properties were studied. Confocal Laser Scanning Microscopy was used to study the morphology of fibroblasts during the wound healing process. RESULTS all the ingredients demonstrated to be biocompatible towards fibroblasts. Particularly, the formulation of nanoclays as hydrogels improved biocompatibility with respect to powder samples at the same concentration. Spring waters and hydrogels were even able to promote in vitro fibroblasts motility and, therefore, accelerate wound healing with respect to the control. CONCLUSION fibrous nanoclay/spring water hydrogels proved to be skin-biocompatible and to possess a high potential as wound healing formulations. Moreover, these results open new prospects for these ingredients to be used in new therapeutic or cosmetic formulations.
Collapse
Affiliation(s)
- Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 s/n Granada, Spain; (P.C.); (C.V.)
| | - Angela Faccendini
- Department of Drug Sciences, Faculty of Pharmacy, University of Pavia, Taramelli Street 12, 27100 Pavia, Italy; (A.F.); (D.M.); (M.R.); (S.R.); (G.S.)
| | - Dalila Miele
- Department of Drug Sciences, Faculty of Pharmacy, University of Pavia, Taramelli Street 12, 27100 Pavia, Italy; (A.F.); (D.M.); (M.R.); (S.R.); (G.S.)
| | - Marco Ruggeri
- Department of Drug Sciences, Faculty of Pharmacy, University of Pavia, Taramelli Street 12, 27100 Pavia, Italy; (A.F.); (D.M.); (M.R.); (S.R.); (G.S.)
| | - Rita Sánchez-Espejo
- Andalusian Institute of Earth Sciences, CSIC-UGR, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Ana Borrego-Sánchez
- Andalusian Institute of Earth Sciences, CSIC-UGR, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Pilar Cerezo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 s/n Granada, Spain; (P.C.); (C.V.)
| | - Silvia Rossi
- Department of Drug Sciences, Faculty of Pharmacy, University of Pavia, Taramelli Street 12, 27100 Pavia, Italy; (A.F.); (D.M.); (M.R.); (S.R.); (G.S.)
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 s/n Granada, Spain; (P.C.); (C.V.)
- Andalusian Institute of Earth Sciences, CSIC-UGR, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Giuseppina Sandri
- Department of Drug Sciences, Faculty of Pharmacy, University of Pavia, Taramelli Street 12, 27100 Pavia, Italy; (A.F.); (D.M.); (M.R.); (S.R.); (G.S.)
| |
Collapse
|