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Sosa MV, Hussain K, Prieto ED, Da Ros T, Shah MR, Wolcan E. The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle. Phys Chem Chem Phys 2024; 26:11933-11944. [PMID: 38572727 DOI: 10.1039/d4cp00687a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
This study explores how water content modulates the self-assembly and fluorescence behavior of a novel calixarene, C1. C1 forms large, flattened structures in pure THF, but water addition triggers a transition to smaller, unimodal clusters. A critical micellar concentration (CMC) is identified, decreasing with increasing water content. Fluorescence quenching is observed upon water addition, attributed to nonradiative deactivation. These findings highlight water as a key regulator of C1's assembly and fluorescence, paving the way for further development of water-responsive calixarene systems.
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Affiliation(s)
- María Virginia Sosa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
| | - Kashif Hussain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, 75270, Karachi, Pakistan
| | - Eduardo D Prieto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
- Departamento de Cs. Biológicas, Facultad de Ciencias Exactas (UNLP), Instituto Ciencias de la Salud, Universidad Nacional Arturo Jauretche (UNAJ), Argentina
| | - Tatiana Da Ros
- INSTM, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - M Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, 75270, Karachi, Pakistan
| | - Ezequiel Wolcan
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
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2
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Tan DA, Massera C, McIldowie MJ, Mocerino M. Synthesis of Distally‐Bridged Chiral Resorcinarene Crowns. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel A. Tan
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
| | - Chiara Massera
- Dipartimento di Scienze Chimiche della Vita e della Sostenibilità Ambientale Università degli Studi di Parma Parco Area delle Scienze 17/A 43124 Parma Italy
| | - Matthew J. McIldowie
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
| | - Mauro Mocerino
- Chemistry School of Molecular and Life Sciences Curtin University GPO Box U1987 6845 Perth Australia
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3
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Mehra C, Gala R, Kakatkar A, Kumar V, Khurana R, Chatterjee S, Kumar NN, Barooah N, Bhasikuttan AC, Mohanty J. Cooperative enhancement of antibacterial activity of sanguinarine drug through p-sulfonatocalix[6]arene functionalized silver nanoparticles. Chem Commun (Camb) 2020; 55:14275-14278. [PMID: 31720595 DOI: 10.1039/c9cc07378g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The amelioration of antibacterial efficacy along with the reduced minimum inhibitory concentration (MIC) of sanguinarine (SGR) drug have been demonstrated through the uptake of SGR by p-sulfonatocalix[6]arene functionalized silver nanoparticles. The large upward pKa shift and enhanced stability of SGR resulting from the favorable supra-nanomolecular strategy are deciphered into an improved antibacterial drug against different pathogenic micro-organisms including multi drug resistant bacteria.
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Affiliation(s)
- Chahat Mehra
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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4
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Ziąbka M, Menaszek E, Tarasiuk J, Wroński S. Biocompatible Nanocomposite Implant with Silver Nanoparticles for Otology-In Vivo Evaluation. NANOMATERIALS 2018; 8:nano8100764. [PMID: 30262741 PMCID: PMC6215221 DOI: 10.3390/nano8100764] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 02/06/2023]
Abstract
The aim of this work was to investigate of biocompatibility of polymeric implants modified with silver nanoparticles (AgNPs). Middle ear prostheses (otoimplants) made of the (poly)acrylonitrile butadiene styrene (ABS) and ABS modified with silver nanoparticles were prepared through extrusion and injection moulding process. The obtained prostheses were characterized by SEM-EDX, micro-CT and mechanical tests, confirming their proper shape, good AgNPs homogenization and mechanical parameters stability. The biocompatibility of the implants was evaluated in vivo on rats, after 4, 12, 24 and 48 weeks of implantation. The tissue-healing process and cytotoxicity of the implants were evaluated on the basis of microscopic observations of the materials morphology after histochemical staining with cytochrome c oxidase (OCC) and acid phosphatase (AP), as well as via micro-tomography (ex vivo). The in vivo studies confirmed biocompatibility of the implants in the surrounding tissue environment. Both the pure ABS and nanosilver-modified ABS implants exhibited a distinct decrease in the area of granulation tissue which was replaced with the regenerating muscle tissue. Moreover, a slightly smaller area of granulation tissue was observed in the surroundings of the silver-doped prosthesis than in the case of pure ABS prosthesis. The kinetics of silver ions releasing from implants was investigated by ICP-MS spectrometry. The measurement confirmed that concentration of the silver ions increased within the implant’s immersion period. Our results showed that middle ear implant with the nanoscale modification is biocompatible and might be used in ossicular reconstruction.
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Affiliation(s)
- Magdalena Ziąbka
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30-059 Krakow, Poland.
| | - Elżbieta Menaszek
- Department of Cytobiology, Collegium Medicum, Faculty of Pharmacy, UJ Jagiellonian University, 30-001 Krakow, Poland.
| | - Jacek Tarasiuk
- Department of Condensed Matter Physics, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, 30-059 Krakow, Poland.
| | - Sebastian Wroński
- Department of Condensed Matter Physics, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, 30-059 Krakow, Poland.
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5
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Taglietti A, Grisoli P, Dacarro G, Gattesco A, Mangano C, Pallavicini P. Grafted monolayers of the neutral Cu( ii) complex of a dioxo-2,3,2 ligand: surfaces with decreased antibacterial action. NEW J CHEM 2018. [DOI: 10.1039/c7nj04601d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A monolayer of the neutral Cu2+ complex of a silane-bearing diamino–diamido ligand is formed on glass, exhibiting (decreased) antibacterial properties.
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Affiliation(s)
- A. Taglietti
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - P. Grisoli
- Dipartimento di Scienze del Farmaco
- Università di Pavia
- Pavia
- Italy
| | - G. Dacarro
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - A. Gattesco
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - C. Mangano
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
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6
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Marchetti F, Palmucci J, Pettinari C, Pettinari R, Marangoni M, Ferraro S, Giovannetti R, Scuri S, Grappasonni I, Cocchioni M, Maldonado Hodar FJ, Gunnella R. Preparation of Polyethylene Composites Containing Silver(I) Acylpyrazolonato Additives and SAR Investigation of their Antibacterial Activity. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29676-29687. [PMID: 27762551 DOI: 10.1021/acsami.6b09742] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Novel composite materials PEn (n = 1-9) have been prepared by an easily up-scalable embedding procedure of three different families of Ag(I) acylpyrazolonato complexes in polyethylene (PE) matrix. In details, PE1-PE3 composites contain polynuclear [Ag(QR)]n complexes, PE4-PE6 contain mononuclear [Ag(QR)(L)m] complexes and PE7-PE9 are loaded with mononuclear [Ag(QR) (PPh3)2] complexes, respectively (where L = 1-methylimidazole or 2-ethylimidazole, m = 1 or 2, and HQR = 1-phenyl-3-methyl-4-RC(═O)-5-pyrazolone, where in detail HQfb, R = -CF2CF2CF3; HQcy, R = -cyclo-C6H11; HQbe, R = -C(H)═C(CH3)2). The PEn composites, prepared by using a 1:1000 w/w silver additive/polyethylene ratio, have been characterized in bulk by IR spectroscopy and TGA analyses, which confirmed that the properties of polyethylene matrix are essentially unchanged. AFM, SEM, and EDX surface techniques show that silver additives form agglomerates with dimensions 10-100 μm on the polyethylene surface, with a slight increment of surface roughness of pristine plastic within 50 nm. However, the elastic properties of the composites are essentially the same of PE. The antibacterial activity of all composites has been tested against three bacterial strains (E. coli, P. aeruginosa and S. aureus) and results show that two classes of composites, PE1-PE3 and PE4-PE6, display high and persistent bactericidal and bacteriostatic activity, comparable to PE embedded with AgNO3. By contrast, composites PE7-PE9 exhibit a reduced antibacterial action. Contact and release tests in several conditions for specific migration of Ag+ from plastics, indicate a very limited but time persistent release of silver ions from PE1-PE6 composites, thus suggesting that they are potential antibacterial materials for future applications. Instead, PE7-PE9 almost do not release silver, only trace levels of silver ions being detected, in accordance with their reduced antibacterial action. None of the composites is toxic against higher organisms, as confirmed by D. magna test of ecotoxicity.
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Affiliation(s)
- Fabio Marchetti
- School of Science and Technology, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
- ICCOM, CNR 62032 Camerino, Italy
| | - Jessica Palmucci
- School of Science and Technology, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Claudio Pettinari
- ICCOM, CNR 62032 Camerino, Italy
- School of Pharmacy, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Riccardo Pettinari
- ICCOM, CNR 62032 Camerino, Italy
- School of Pharmacy, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Mirko Marangoni
- School of Science and Technology, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Stefano Ferraro
- School of Science and Technology, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Rita Giovannetti
- School of Science and Technology, Chemistry Section, University of Camerino , Via S. Agostino 1, 62032 Camerino (MC) Italy
| | - Stefania Scuri
- Research Centre for Hygienistic, Health and Environmental Sciences, School of Pharmacy, University of Camerino , Via Madonna delle Carceri 9, 62032 Camerino (MC) Italy
| | - Iolanda Grappasonni
- Research Centre for Hygienistic, Health and Environmental Sciences, School of Pharmacy, University of Camerino , Via Madonna delle Carceri 9, 62032 Camerino (MC) Italy
| | - Mario Cocchioni
- Research Centre for Hygienistic, Health and Environmental Sciences, School of Pharmacy, University of Camerino , Via Madonna delle Carceri 9, 62032 Camerino (MC) Italy
| | | | - Roberto Gunnella
- School of Science and Technology, Physics Section, University of Camerino , Via Madonna delle Carceri 9, 62032 Camerino (MC) Italy
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Helttunen K, Nissinen M. Inverted molecular cups: 1-D and 2-D Ag( i) coordination polymers from resorcinarene bis-thiacrowns. CrystEngComm 2016. [DOI: 10.1039/c6ce00243a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Exo-cavity binding into resorcinarene based inverted molecular cups creates 1-D and 2-D silver coordination polymers with argentophilic interactions.
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Affiliation(s)
- Kaisa Helttunen
- Department of Chemistry
- Nanoscience Center
- University of Jyvaskyla
- FI-40014 Jyvaskyla, Finland
| | - Maija Nissinen
- Department of Chemistry
- Nanoscience Center
- University of Jyvaskyla
- FI-40014 Jyvaskyla, Finland
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Conductometric studies on complexation of Ag+ cation by C-thiophene calix[4]resorcinarene in pure and mixed non-aqueous solvent systems. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0570-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Lu Y, Wu Y, Liang J, Libera MR, Sukhishvili SA. Self-defensive antibacterial layer-by-layer hydrogel coatings with pH-triggered hydrophobicity. Biomaterials 2015; 45:64-71. [DOI: 10.1016/j.biomaterials.2014.12.048] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/09/2014] [Accepted: 12/20/2014] [Indexed: 11/25/2022]
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10
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Helttunen K, Tero TR, Nissinen M. Influence of lower rim C-methyl group on crystal forms and metal complexation of resorcinarene bis-crown-5. CrystEngComm 2015. [DOI: 10.1039/c5ce00311c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Marchetti F, Palmucci J, Pettinari C, Pettinari R, Condello F, Ferraro S, Marangoni M, Crispini A, Scuri S, Grappasonni I, Cocchioni M, Nabissi M, Chierotti MR, Gobetto R. Novel composite plastics containing silver(I) acylpyrazolonato additives display potent antimicrobial activity by contact. Chemistry 2014; 21:836-50. [PMID: 25358838 DOI: 10.1002/chem.201404812] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Indexed: 12/20/2022]
Abstract
New silver(I) acylpyrazolonato derivatives displaying a mononuclear, polynuclear, or ionic nature, as a function of the ancillary azole ligands used in the synthesis, have been fully characterized by thermal analysis, solution NMR spectroscopy, solid-state IR and NMR spectroscopies, and X-ray diffraction techniques. These derivatives have been embedded in polyethylene (PE) matrix, and the antimicrobial activity of the composite materials has been tested against three bacterial strains (E. coli, P. aeruginosa, and S. aureus): Most of the composites show antimicrobial action comparable to PE embedded with AgNO3 . Tests by contact and release tests for specific migration of silver from PE composites clearly indicate that, at least in the case of the PE, for composites containing polynuclear silver(I) additives, the antimicrobial action is exerted by contact, without release of silver ions. Moreover, PE composites can be re-used several times, displaying the same antimicrobial activity. Membrane permeabilization studies and induced reactive oxygen species (ROS) generation tests confirm the disorganization of bacterial cell membranes. The cytotoxic effect, evaluated in CD34(+) cells by MTT (3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazoliumbromide) and CFU (colony forming units) assays, indicates that the PE composites do not induce cytotoxicity in human cells. Studies of ecotoxicity, based on the test of Daphnia magna, confirm tolerability of the PE composites by higher organisms and exclude the release of Ag(+) ions in sufficient amounts to affect water environment.
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Affiliation(s)
- Fabio Marchetti
- School of Science and Technology, Chemistry Section, University of Camerino, Via S. Agostino 1, Camerino (MC) (Italy).
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Pallavicini P, Dacarro G, Diaz-Fernandez YA, Taglietti A. Coordination chemistry of surface-grafted ligands for antibacterial materials. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.04.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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