1
|
Ozimek J, Pielichowski K. Recent Advances in Polyurethane/POSS Hybrids for Biomedical Applications. Molecules 2021; 27:molecules27010040. [PMID: 35011280 PMCID: PMC8746980 DOI: 10.3390/molecules27010040] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 11/16/2022] Open
Abstract
Advanced organic-inorganic materials-composites, nanocomposites, and hybrids with various compositions offer unique properties required for biomedical applications. One of the most promising inorganic (nano)additives are polyhedral oligomeric silsesquioxanes (POSS); their biocompatibility, non-toxicity, and phase separation ability that modifies the material porosity are fundamental properties required in modern biomedical applications. When incorporated, chemically or physically, into polyurethane matrices, they substantially change polymer properties, including mechanical properties, surface characteristics, and bioactivity. Hence, this review is dedicated to POSS-PU composites that have recently been developed for applications in the biomedical field. First, different modes of POSS incorporation into PU structure have been presented, then recent developments of PU/POSS hybrids as bio-active composites for scaffolds, cardiovascular stents, valves, and membranes, as well as in bio-imaging and cancer treatment, have been described. Finally, characterization and methods of modification routes of polyurethane-based materials with silsesquioxanes were presented.
Collapse
|
2
|
Tkachenko OS, Souza LV, Deon M, Becker EM, Menezes EW, Arenas LT, Benvenutti EV. AgNP‐decorated SBA‐15 for MWCNT Paste Modified Electrode: A Sensor for Simultaneous Voltammetric Determination of Paracetamol and Sulfamethoxazole. ELECTROANAL 2020. [DOI: 10.1002/elan.202060090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Oleg S. Tkachenko
- Materials Chemistry Department V. N. Karazin Kharkiv National University 4 Svoboda Square Kharkiv 61022 Ukraine
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | - Luana V. Souza
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | - Monique Deon
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | - Emilene M. Becker
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | - Eliana W. Menezes
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | - Leliz T. Arenas
- Institute of Chemistry UFRGS PO Box 15003 CEP 91501-970 Porto Alegre RS Brazil
| | | |
Collapse
|
3
|
Schneid AC, Quevedo AB, Pereira MB, Araújo PF, Franco N, Machado G, Moro CC, de Menezes EW, Costa TMH, Benvenutti EV. New strategy to obtain high surface area anatase nanotube/AuNP photocatalyst. NANOTECHNOLOGY 2019; 30:065604. [PMID: 30523846 DOI: 10.1088/1361-6528/aaf17e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Anatase nanotubes with high surface area (ca. 350 m2 g-1), containing gold nanoparticles, were successfully obtained from trititanate nanotubes, prepared by a template-free hydrothermal method, and calcined at 450 °C. The high surface area and tubular morphology were attained due to the presence of ionic silsesquioxane, which acts as anti-sintering agent for titania during calcination process, by forming a thin silica coating between anatase nanotubes. Additionally, the ionic silsesquioxane also acts as stabilizing and adhesion agent for gold nanoparticles on the surface of anatase nanotubes. The influence of the ionic silsesquioxane on the morphological and textural properties of anatase nanotubes was studied in three different moments during the synthesis: before, after and before/after nanotubes were rolled up. The photocatalytic activity of the nanotube samples was evaluated by hydrogen generation showing remarkable enhancement in hydrogen production and stability of catalyst when compare with the bare anatase sample and commercial P-25.
Collapse
Affiliation(s)
- Andressa C Schneid
- LSS, Laboratory of Solids and Surfaces, Instituto de Química, UFRGS, CEP 91501-970, Porto Alegre, RS, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Dong F, Lu L, Ha C. Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800324] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fuping Dong
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Liangyu Lu
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Chang‐Sik Ha
- Department of Polymer Science and EngineeringPusan National University Busan 46241 Republic of Korea
| |
Collapse
|
5
|
Park S, Park HH, Ko YS, Lee SJ, Le TS, Woo K, Ko G. Disinfection of various bacterial pathogens using novel silver nanoparticle-decorated magnetic hybrid colloids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 609:289-296. [PMID: 28753503 DOI: 10.1016/j.scitotenv.2017.07.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/07/2017] [Accepted: 07/08/2017] [Indexed: 06/07/2023]
Abstract
Silver nanoparticles (AgNPs) have long been considered a powerful disinfectant for controlling pathogenic microorganisms. However, AgNPs might have adverse effects on both human health and our ecosystems due to their potential cytotoxicity and the difficulty in recovering them after their release into the environment. In this study, we characterized the antimicrobial efficacy caused by a novel micrometer-sized magnetic hybrid colloid (MHC) containing 7, 15, or 30nm sized monodispersed AgNPs (AgNP-MHCs), which can be re-collected from the environment using simple procedures, such as a magnet or centrifugation. We evaluated the antibacterial capabilities of AgNP-MHCs against target bacteria (Legionella pneumophila, Bacillus subtilis, Escherichia coli, and Clostridium perfringens) and compared them with the inactivation efficacy of AgNPs ~30nm in diameter (nAg30s). Among the different AgNP-MHCs composites evaluated, Ag30-MHCs had the greatest antibacterial effect. After 1h of exposure, more than a 4-log10 reduction of L. pneumophila and 6-log10 reduction of B. subtilis was achieved by 4.6×109particles/mL of Ag30-MHCs and Ag30-MHC-Ls. In addition, Ag30-MHC-Ls maintained their strong antibacterial capabilities under anaerobic conditions. Our results indicate that AgNP-MHCs can be considered excellent tools for controlling waterborne bacterial pathogens, with a minimal risk of release into the environment.
Collapse
Affiliation(s)
- SungJun Park
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Hye Hun Park
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Young-Seon Ko
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Su Jin Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - The Son Le
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Kyoungja Woo
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
| |
Collapse
|
6
|
Nélly MSV, Nelson EDC, Taciana DAS, Patrick VQ, Alyne RDA, Ana CMDM, Ana LDSC, João PFL, Ricardo BA, Durcilene ADS, José RDSDAL, Maria FST. Extracellular biogenic synthesis of silver nanoparticles by Actinomycetes from amazonic biome and its antimicrobial efficiency. ACTA ACUST UNITED AC 2017. [DOI: 10.5897/ajb2017.16148] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
7
|
Winiarski JP, de Barros MR, Magosso HA, Jost CL. Electrochemical reduction of sulfite based on gold nanoparticles/silsesquioxane-modified electrode. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.08.171] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
8
|
Abdel-Mohsen AM, Jancar J, Abdel-Rahman RM, Vojtek L, Hyršl P, Dušková M, Nejezchlebová H. A novel in situ silver/hyaluronan bio-nanocomposite fabrics for wound and chronic ulcer dressing: In vitro and in vivo evaluations. Int J Pharm 2017; 520:241-253. [PMID: 28163228 DOI: 10.1016/j.ijpharm.2017.02.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 01/27/2017] [Accepted: 02/01/2017] [Indexed: 12/31/2022]
Abstract
In-situ formed hyaluronan/silver (HA/Ag) nanoparticles (NPs) were used to prepare composite fibers/fabrics for the first time. Different concentrations of silver nitrate (1, 2mg/100ml) were added at ambient temperature to sodium hyaluronate solution (40mg/ml), then the pH was increased to 8 by adding sodium hydroxide. The in-situ formed HA/Ag-NPs were used to prepare fibers/nonwoven fabrics by wet-dry-spinning technique (WDST). UV/vis spectroscopy, SEM, TEM, DLS, XPS, XRD and TGA were employed to characterize the structure and composition of the nanocomposite, surface morphology of fiber/fabrics, particle size of Ag-NPs, chemical interactions of Ag0 and HA functional groups, crystallinity and thermal stability of the wound dressing, respectively. The resultant HA/Ag-NPs1 and HA/Ag-NPs2 composite showed uniformly dispersed throughout HA fiber/fabrics (SEM), an excellent distribution of Ag-NPs with 25±2, nm size (TEM, DLS) and acceptable mechanical properties. The XRD analysis showed that the in-situ preparation of Ag-NPs increased the crystallinity of the resultant fabrics as well as the thermal stability. The antibacterial performance of medical HA/Ag-NPs fabrics was evaluated against gram negative bacteria E. coli K12, exhibiting significant bactericidal activity. The fibers did not show any cytotoxicity against human keratinocyte cell line (HaCaT). In-vivo animal tests indicated that the prepared wound dressing has strong healing efficacy (non-diabetics/diabetics rat model) compared to the plain HA fabrics and greatly accelerated the healing process. Based on our results, the new HA/Ag-NPs-2mg nonwoven wound dressing fabrics can be used in treating wounds and chronic ulcers as well as cell carrier in different biological research and tissue engineering.
Collapse
Affiliation(s)
- A M Abdel-Mohsen
- CEITECCentral European Institute of Technology, Brno University of Technology, Brno, Czechia; SCITEG, a.s., Brno, Czechia; Pretreatment and Finishing of Cellulosic Fibers, Textile Research Division, National Research Centre, Dokki, Cairo, Egypt.
| | - J Jancar
- CEITECCentral European Institute of Technology, Brno University of Technology, Brno, Czechia; SCITEG, a.s., Brno, Czechia; Faculty of Chemistry, Institute of Materials Chemistry, Brno University of Technology, Brno, Czechia
| | - R M Abdel-Rahman
- CEITECCentral European Institute of Technology, Brno University of Technology, Brno, Czechia
| | - L Vojtek
- Masaryk University, Faculty of Science, Department of Experimental Biology, Brno, Czechia
| | - P Hyršl
- Masaryk University, Faculty of Science, Department of Experimental Biology, Brno, Czechia
| | - M Dušková
- Masaryk University, Faculty of Science, Department of Experimental Biology, Brno, Czechia
| | - H Nejezchlebová
- Masaryk University, Faculty of Science, Department of Experimental Biology, Brno, Czechia
| |
Collapse
|
9
|
Mandal A, Sekar S, Seeni Meera KM, Mukherjee A, Sastry TP, Mandal AB. Fabrication of collagen scaffolds impregnated with sago starch capped silver nanoparticles suitable for biomedical applications and their physicochemical studies. Phys Chem Chem Phys 2015; 16:20175-83. [PMID: 25138771 DOI: 10.1039/c4cp02554g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The present investigation attempts at fabricating collagen-based scaffolds impregnated with sago starch capped silver nanoparticles (AgNPs), useful for biomedical applications, and aims at studying their physicochemical aspects. AgNPs synthesized through a chemical reduction method, capped using different concentrations of sago starch, are incorporated into collagen derived from fish scales, and lyophilized to form scaffolds. FT-IR spectra confirm and validate the interaction of sago starch capped AgNPs with collagen in the scaffolds. TGA and DSC results indicate enhanced thermal stability of collagen scaffolds impregnated with sago capped AgNPs compared to collagen alone. All the collagen scaffolds containing sago starch capped AgNPs show high tensile strength values for their use as wound dressing materials. Moreover, lower minimum inhibitory concentration values are obtained for the above capped AgNP collagen scaffolds, which indicate higher antibacterial activities compared to uncapped AgNPs tested against both gram positive and negative bacterial strains. The novelty is that the developed scaffolds are biodegradable and in vitro studies reveal them as biocompatible and suitable for tissue regeneration applications.
Collapse
Affiliation(s)
- Abhishek Mandal
- Centre for Nano-Biotechnology, School of Bio-Sciences and Technology, VIT University, Vellore 632014, India
| | | | | | | | | | | |
Collapse
|
10
|
Ujjwal RR, Purohit MP, Patnaik S, Ojha U. General Reagent Free Route to pH Responsive Polyacryloyl Hydrazide Capped Metal Nanogels for Synergistic Anticancer Therapeutics. ACS APPLIED MATERIALS & INTERFACES 2015; 7:11497-507. [PMID: 25961335 DOI: 10.1021/acsami.5b02452] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Herewith, we report a facile synthesis of pH responsive polyacryloyl hydrazide (PAH) capped silver (Ag) or gold (Au) nanogels for anticancer therapeutic applications. A cost-effective instant synthesis of PAH-Ag or PAH-Au nanoparticles (NPs) possessing controllable particle diameter and narrow size distribution was accomplished by adding AgNO3 or AuCl to the aqueous solution of PAH under ambient conditions without using any additional reagent. PAH possessing carbonyl hydrazide pendant functionality served as both reducing and capping agent to produce and stabilize the NPs. The stability analysis by UV-vis, dynamic light scattering, and transmission electron microscopy techniques suggested that these NPs may be stored in a refrigerator for at least up to 2 weeks with negligible change in conformation. The average hydrodynamic size of PAH-Ag NPs synthesized using 0.2 mmol/L AgNO3 changed from 122 to 226 nm on changing the pH of the medium from 5.4 to 7.4, which is a characteristic property of pH responsive nanogel. Camptothecin (CPT) with adequate loading efficiency (6.3%) was encapsulated in the PAH-Ag nanogels. Under pH 5.4 conditions, these nanogels released 78% of the originally loaded CPT over a period of 70 h. The antiproliferative potential of PAH-Ag-CPT nanogels (at [CPT]=0.6 μg/mL) against MCF-7 breast adeno-carcinoma cells were ∼350% higher compared to that of the free CPT as evidenced by high cellular internalization of these nanogels. Induction of apoptosis in MCF-7 breast adeno-carcinoma cells by PAH-Ag-CPT nanogels was evidenced by accumulation of late apoptotic cell population. Drug along with the PAH-Ag NPs were also encapsulated in a pH responsive hydrogel through in situ gelation at room temperature using acrylic acid as the cross-linker. The resulting hydrogel released quantitative amounts of both drug and PAH-Ag NPs over a period of 16 h. The simplicity of synthesis and ease of drug loading with efficient release render these NPs a viable candidate for various biomedical applications, and moreover this synthetic procedure may be extended to other metal NPs.
Collapse
Affiliation(s)
- Rewati Raman Ujjwal
- †Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology, Ratapur Chowk, Rae Bareli UP-229316, India
| | - Mahaveer Prasad Purohit
- ‡Academy of Scientific and Innovative Research, CSIR-IITR, Lucknow, CSIR-IITR Campus, Lucknow 226001, India
| | - Satyakam Patnaik
- ‡Academy of Scientific and Innovative Research, CSIR-IITR, Lucknow, CSIR-IITR Campus, Lucknow 226001, India
| | - Umaprasana Ojha
- †Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology, Ratapur Chowk, Rae Bareli UP-229316, India
| |
Collapse
|
11
|
Development of active biofilms of quinoa (Chenopodium quinoa W.) starch containing gold nanoparticles and evaluation of antimicrobial activity. Food Chem 2015; 173:755-62. [DOI: 10.1016/j.foodchem.2014.10.068] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 10/09/2014] [Accepted: 10/14/2014] [Indexed: 11/23/2022]
|