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Wang Q, Hu L, Ma H, Venkateswaran S, Hsiao BS. High-Flux Nanofibrous Composite Reverse Osmosis Membrane Containing Interfacial Water Channels for Desalination. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37192294 DOI: 10.1021/acsami.2c15509] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A nanofibrous composite reverse osmosis (RO) membrane with a polyamide barrier layer containing interfacial water channels was fabricated on an electrospun nanofibrous substrate via an interfacial polymerization process. The RO membrane was employed for desalination of brackish water and exhibited enhanced permeation flux as well as rejection ratio. Nanocellulose was prepared by sequential oxidations of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and sodium periodate systems and surface grafting with different alkyl groups including octyl, decanyl, dodecanyl, tetradecanyl, cetyl, and octadecanyl groups. The chemical structure of the modified nanocellulose was verified subsequently by Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), and solid NMR measurements. Two monomers, trimesoyl chloride (TMC) and m-phenylenediamine (MPD), were employed to prepare a cross-linked polyamide matrix, i.e., the barrier layer of the RO membrane, which integrated with the alkyl groups-grafted nanocellulose to build up interfacial water channels via interfacial polymerization. The top and cross-sectional morphologies of the composite barrier layer were observed by means of scanning electron microscopy (SEM), atomic force microscopy (AFM), and transmission electron microscopy (TEM) to verify the integration structure of the nanofibrous composite containing water channels. The aggregation and distribution of water molecules in the nanofibrous composite RO membrane verified the existence of water channels, demonstrated by molecular dynamics (MD) simulations. The desalination performance of the nanofibrous composite RO membrane was conducted and compared with that of commercially available RO membranes in the processing of brackish water, where 3 times higher permeation flux and 99.1% rejection ratio against NaCl were accomplished. This indicated that the engineering of interfacial water channels in the barrier layer could substantially increase the permeation flux of the nanofibrous composite membrane while retaining the high rejection ratio as well, i.e., to break through the trade-off between permeation flux and rejection ratio. Antifouling properties, chlorine resistance, and long-term desalination performance were also demonstrated to evaluate the potential applications of the nanofibrous composite RO membrane; remarkable durability and robustness were achieved in addition to 3 times higher permeation flux and a higher rejection ratio against commercial RO membranes in brackish water desalination.
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Affiliation(s)
- Qihang Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lifen Hu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongyang Ma
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Shyam Venkateswaran
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Benjamin S Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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2
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da Rocha VN, Köhler MH, Nagata K, Piquini PC. Theoretical study of C 6F 5-corrole molecules functionalized with aromatic groups for Photodynamic Therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122500. [PMID: 36827812 DOI: 10.1016/j.saa.2023.122500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
The singlet oxygen generation by electronically excited molecules in photodynamic therapy (PDT) requires light absorption within a specific wavelength window, and a subsequent intersystem crossing transition to a triplet excited state that is, at least, 0.98 eV higher in energy than the singlet ground state. Tetrapyrrolic macrocycles, such as porphyrin and corrole, have been widely used in oxygen singlet generation for PDT. Suitable functionalization can potentialize these macrocycles as photosensitizers. In this contribution, we use Density Functional Theory (DFT) calculations to determine the structural, electronic and spectroscopic properties of corrole macrocycles bound to different polycyclic aromatic groups in the gas phase, dichloromethane, and water. We also calculate the spin-orbit coupling (SOC) matrix elements of the intersystem crossing channels involving the first excited singlet states and excited triplet states. The results for optical absorption show that the threshold wavelength for optical absorption increases with the polarity of the environment and the number of aromatic rings of the ligands, whereas the oscillator strengths increase with the polarity of the environment but decrease with the number of aromatic rings. It is verified that the triplet excited states involved in the intersystem crossing transitions satisfy the energy requirement for the oxygen singlet generation. The magnitude of spin-orbit coupling (SOC) matrix elements associated with the intersystem crossing are also seen to be dependent on the environment involving the corrole molecules, and on the number of aromatic rings of the ligands connected to the corrole. Further, the binding of the functionalized corrole molecules with biomolecules as the calf thymus DNA and human serum albumin is studied and characterized through molecular docking. These results show that the corrole macrocycles, suitably functionalized with polycyclic aromatic groups, fulfill several criteria to be considered as good PDT photosensitizers.
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Affiliation(s)
- Vinícius N da Rocha
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil.
| | - Mateus H Köhler
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil.
| | - Khayth Nagata
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil; Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, 68040-470, Santarém, PA, Brazil.
| | - Paulo C Piquini
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil.
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3
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Sautour M, Pacquelet S, Gros CP, Desbois N. Evaluation of carboxylic acid-derivatized corroles as novel gram-positive antibacterial agents under non-photodynamic inactivation conditions. Bioorg Med Chem Lett 2023; 82:129167. [PMID: 36736706 DOI: 10.1016/j.bmcl.2023.129167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
Herein, we report the synthesis and evaluation of carboxylic acid corroles bearing either one, two, three of four carboxylic groups as gram-positive antibacterial agents against two strains of S. aureus, one methicillin-sensible (MSSA) and the other methicillin-resistant (MRSA). Lead compounds 5 and 6 show low minimum inhibitory concentrations (MICs) of 0.78 μg/mL against both MSSA and MRSA. These molecules, previously underexplored as antibacterial agents, can now serve as a new scaffold for antimicrobial development.
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Affiliation(s)
- Marc Sautour
- Parasitology-Mycology Laboratory, University Hospital Biology Platform, Dijon University Hospital Center (CHU), 21000 Dijon, France; UMR PAM A 02.102 Procédés Alimentaires et Microbiologiques, Université Bourgogne Franche-Comté, AgroSup Dijon, 21000 Dijon, France
| | - Sandrine Pacquelet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR CNRS 6302), Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Claude P Gros
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR CNRS 6302), Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Nicolas Desbois
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR CNRS 6302), Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France.
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4
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Blilid S, Boundor M, Katir N, El Achaby M, Lahcini M, Majoral JP, Bousmina M, El Kadib A. Expanding Chitosan Reticular Chemistry Using Multifunctional and Thermally Stable Phosphorus-Containing Dendrimers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sara Blilid
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Mohamed Boundor
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Mounir El Achaby
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Mohammed Lahcini
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 Route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
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Santos CIM, Cicuéndez M, Gonçalves G, Rodríguez-Pérez L, Portolés MT, Faustino MAF, Herranz MÁ, Neves MGPMS, Martinho JMG, Maçôas EMS, Martín N. Safety assessment of new nanodiamonds@corrole hybrids addressed by the response of RAW-264.7 macrophages. J Mater Chem B 2023; 11:675-686. [PMID: 36562480 DOI: 10.1039/d2tb01863b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Safety assessment of carbon nanomaterials is of paramount importance since they are on the frontline for applications in sensing, bioimaging and drug delivery. The biocompatibility and safety of functionalized nanodiamonds (NDs) are here addressed through the study of the pro-inflammatory response of RAW-264.7 macrophages exposed to new nanodiamonds@corrole hybrids. The corrole unit selected is as a prototype for a hydrophobic organic molecule that can function as a NIR fluorophore reporter, an optical sensor, a photodynamic therapy agent or a photocatalyst. The new functional nanohybrids containing detonated nanodiamonds (NDs) were obtained through esterification using carboxylated NDs and glycol corroles. The success of the covalent functionalization via carbodiimide activation was confirmed through X-ray photoelectron spectroscopy (XPS), Raman and Fourier transform infrared (FTIR) spectroscopy. The UV-vis absorption and emission spectra of the hybrids are additive with respect to the corrole features. The cellular uptake, localization, cell viability and effects on immune cell activation of the new hybrids and of the precursors were carefully investigated using RAW-264.7 macrophages. Overall results showed that the ND@corrole hybrids had no pro-inflammatory effects on the RAW-264.7 macrophage cell line, making them an ideal candidate for a wide range of biomedical applications.
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Affiliation(s)
- Carla I M Santos
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.,LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Mónica Cicuéndez
- Chemistry Department, Faculty of Pharmacy, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), E-28040, Madrid, Spain
| | - Gil Gonçalves
- TEMA-Nanotechnology Research Group, Mechanical Engineering Department, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal.,Intelligent Systems Associate Laboratory (LASI), Portugal
| | - Laura Rodríguez-Pérez
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - M Teresa Portolés
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain, E-28040 Madrid, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, ISCIII, 28040 Madrid, Spain
| | - M Amparo F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M Ángeles Herranz
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - M Graça P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - José M G Martinho
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ermelinda M S Maçôas
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Nazario Martín
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
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Altam AA, Zhu L, Wang W, Yagoub H, Yang S. Stability improvement of carboxymethyl cellulose/chitosan complex beads by thermal treatment. Int J Biol Macromol 2022; 223:1278-1286. [PMID: 36379283 DOI: 10.1016/j.ijbiomac.2022.11.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/22/2022] [Accepted: 11/09/2022] [Indexed: 11/14/2022]
Abstract
Carboxymethyl cellulose (CMC) and chitosan (CHI) are two well-known natural polymer derivatives, as such the CMC@CHI complex beads fulfill many requirements for bio-related and safety-required applications. However, poor mechanical properties of CMC@CHI beads hinder their applications. We managed to improve the beads stability by a simple thermal treatment during the bead preparation. The effects of temperature, changing from 25 °C to 75 °C, on the stability of the formed beads were investigated. The morphology, diameter, shell thickness and structure of the beads treated at different temperature were analyzed using SEM, XPS and FTIR. The mechanical test and swelling experiments showed that the thermal treatment enhanced the bead's ability to withstand pressure and swelling. The beads treated at 75 °C showed the best pressure resistance, while the beads treated at 55 °C exhibited the highest swelling capability without losing integrity. This method is convenient to implement, not only improves the stability, but also controls the swelling capacity and mechanical properties of the beads, which are important for their potential applications in adsorption and controlled release. More importantly, this work offered insights on the effects of thermal treatment on the complexation process of the two polysaccharide molecular chains.
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Affiliation(s)
- Ali A Altam
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, Donghua University, Shanghai 201620, China
| | - Liping Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, Donghua University, Shanghai 201620, China.
| | - Weijie Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, Donghua University, Shanghai 201620, China
| | - Hajo Yagoub
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, Donghua University, Shanghai 201620, China
| | - Shuguang Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, Donghua University, Shanghai 201620, China.
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7
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Liu C, Hou P, Qian B, Hu X. Smart healable and reportable anticorrosion coating based on halloysite nanotubes carrying 8-hydroxyquinoline on steel. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Chen M, Yu M, Kang R, Sun H, Zhang W, Wang S, Wang N, Wang J. Removal of Pb (II) and V (V) from aqueous solution by glutaraldehyde crosslinked chitosan and nanocomposites. CHEMOSPHERE 2022; 297:134084. [PMID: 35219708 DOI: 10.1016/j.chemosphere.2022.134084] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
In this paper, new adsorbents with high mechanical strength chitosan-graphene oxide (CS-GO) and chitosan-titanium dioxide (CS-TiO2) were synthesized by using glutaraldehyde as crosslinking agent, and the adsorption behavior of Pb (II) and V (V) on them were investigated. The materials were characterized by scanning electron microscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The effects of initial metal ion concentration and contact time on the removal of V (V) and Pb (II) by CS-GO and CS-TiO2 were investigated. Characterization results showed that the hydroxyl group of GO/TiO2 reacted with the amino group of chitosan. A comparison of the kinetic models against experimental data showed that the kinetics react system was best described by the pseudo-second-order model. indicating that chemical adsorption was the main adsorption force. the Langmuir adsorption model and Freundlich model agreed well with the experimental data. The removal capacity of Pb (II) by CS-GO and CS-TiO2 were lower than those of V (V). The uncross-linked -OH and CO were the main adsorptive sites for Pb (II) removal, while uncross-linked -OH and -NH2 played an important role in removing V (V). These findings provided insights on the removing lead and vanadium pollution.
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Affiliation(s)
- Menghua Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China
| | - Mengdie Yu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China
| | - Runfeng Kang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China
| | - Huimin Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling, 712100, PR China.
| | - Wang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China
| | - Shengsen Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, PR China
| | - Nong Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Tianjin, 300191, PR China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, Tai'an, Shandong, 271000, PR China
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Di Natale C, Gros CP, Paolesse R. Corroles at work: a small macrocycle for great applications. Chem Soc Rev 2022; 51:1277-1335. [PMID: 35037929 DOI: 10.1039/d1cs00662b] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Corrole chemistry has witnessed an impressive boost in studies in the last 20 years, thanks to the possibility of preparing corrole derivatives by simple synthetic procedures. The investigation of a large number of corroles has highlighted some peculiar characteristics of these macrocycles, having features different from those of the parent porphyrins. With this progress in the elucidation of corrole properties, attention has been focused on the potential for the exploitation of corrole derivatives in different important application fields. In some areas, the potential of corroles has been studied in certain detail, for example, the use of corrole metal complexes as electrocatalysts for energy conversion. In some other areas, the field is still in its infancy, such as in the exploitation of corroles in solar cells. Herein, we report an overview of the different applications of corroles, focusing on the studies reported in the last five years.
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Affiliation(s)
- Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Viale del Politecnico, 00133 Rome, Italy.
| | - Claude P Gros
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France.
| | - Roberto Paolesse
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
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Natural Polymers-Based Materials: A Contribution to a Greener Future. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010094. [PMID: 35011326 PMCID: PMC8747056 DOI: 10.3390/molecules27010094] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 01/19/2023]
Abstract
Natural polymers have emerged as promising candidates for the sustainable development of materials in areas ranging from food packaging and biomedicine to energy storage and electronics. In tandem, there is a growing interest in the design of advanced materials devised from naturally abundant and renewable feedstocks, in alignment with the principles of Green Chemistry and the 2030 Agenda for Sustainable Development. This review aims to highlight some examples of the research efforts conducted at the Research Team BioPol4fun, Innovation in BioPolymer-based Functional Materials and Bioactive Compounds, from the Portuguese Associate Laboratory CICECO–Aveiro Institute of Materials at the University of Aveiro, regarding the exploitation of natural polymers (and derivatives thereof) for the development of distinct sustainable biobased materials. In particular, focus will be given to the use of polysaccharides (cellulose, chitosan, pullulan, hyaluronic acid, fucoidan, alginate, and agar) and proteins (lysozyme and gelatin) for the assembly of composites, coatings, films, membranes, patches, nanosystems, and microneedles using environmentally friendly strategies, and to address their main domains of application.
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Gao C, Wang S, Liu B, Yao S, Dai Y, Zhou L, Qin C, Fatehi P. Sustainable Chitosan-Dialdehyde Cellulose Nanocrystal Film. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5851. [PMID: 34640253 PMCID: PMC8510260 DOI: 10.3390/ma14195851] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/29/2021] [Accepted: 09/29/2021] [Indexed: 01/20/2023]
Abstract
In this study, we incorporated 2,3-dialdehyde nanocrystalline cellulose (DANC) into chitosan as a reinforcing agent and manufactured biodegradable films with enhanced gas barrier properties. DANC generated via periodate oxidation of cellulose nanocrystal (CNC) was blended at various concentrations with chitosan, and bionanocomposite films were prepared via casting and characterized systematically. The results showed that DANC developed Schiff based bond with chitosan that improved its properties significantly. The addition of DANC dramatically improved the gas barrier performance of the composite film, with water vapor permeability (WVP) value decreasing from 62.94 g·mm·m-2·atm-1·day-1 to 27.97 g·mm·m-2·atm-1·day-1 and oxygen permeability (OP) value decreasing from 0.14 cm3·mm·m-2·day-1·atm-1 to 0.026 cm3·mm·m-2·day-1·atm-1. Meanwhile, the maximum decomposition temperature (Tdmax) of the film increased from 286 °C to 354 °C, and the tensile strength of the film was increased from 23.60 MPa to 41.12 MPa when incorporating 25 wt.% of DANC. In addition, the chitosan/DANC (75/25, wt/wt) films exhibited superior thermal stability, gas barrier, and mechanical strength compared to the chitosan/CNC (75/25, wt/wt) film. These results confirm that the DANC and chitosan induced films with improved gas barrier, mechanical, and thermal properties for possible use in film packaging.
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Affiliation(s)
- Cong Gao
- Department of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, China; (C.G.); (S.W.); (B.L.); (S.Y.)
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
- Chemical Engineering Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Shuo Wang
- Department of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, China; (C.G.); (S.W.); (B.L.); (S.Y.)
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Baojie Liu
- Department of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, China; (C.G.); (S.W.); (B.L.); (S.Y.)
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Shuangquan Yao
- Department of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, China; (C.G.); (S.W.); (B.L.); (S.Y.)
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Yi Dai
- School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, China;
| | - Long Zhou
- Chemical Engineering Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Chengrong Qin
- Department of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, China; (C.G.); (S.W.); (B.L.); (S.Y.)
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Pedram Fatehi
- Chemical Engineering Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
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Yan X, Rahman S, Rostami M, Tabasi ZA, Khan F, Alodhayb A, Zhang Y. Carbon Quantum Dot-Incorporated Chitosan Hydrogel for Selective Sensing of Hg 2+ Ions: Synthesis, Characterization, and Density Functional Theory Calculation. ACS OMEGA 2021; 6:23504-23514. [PMID: 34549147 PMCID: PMC8444287 DOI: 10.1021/acsomega.1c03557] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/25/2021] [Indexed: 05/24/2023]
Abstract
A carbon quantum dot-based chitosan hydrogel was prepared in this work as a fluorescence sensor for the selective sensing of Hg2+ ions. Among the eight tested metal ions, the prepared hydrogel exhibited remarkable sensing selectivity and sensitivity toward Hg2+. The results demonstrated that a prominent fluorescence quenching at 450 nm was observed in the presence of Hg2+ with a linear response range of 0-100.0 nM and an estimated limit of detection of 9.07 nM. The as-prepared hydrogel demonstrates pH-dependent fluorescence intensity and sensitivity. The highest fluorescence intensity and sensitivity were obtained under pH 5.0. The excellent sensing selectivity could be attributed to a strong interaction between the hydrogel film and Hg2+ ions to form complexes, which provokes an effective electron transfer for fluorescence quenching. Results from density functional theory (DFT) calculation confirm that the interaction energies (ΔIE) of the hydrogel with three toxic metal ions (Hg2+, Cd2+, and Pb2+) are in the following order: Hg2+ > Cd2+ > Pb2+.
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Affiliation(s)
- Xiangyu Yan
- Department
of Process Engineering, Memorial University
of Newfoundland, St. John’s A1B 3X5, Canada
| | - Shofiur Rahman
- Department
of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Department
of Chemistry, Memorial University of Newfoundland, St. John’s A1B
3X7, Canada
| | - Masoumeh Rostami
- Department
of Process Engineering, Memorial University
of Newfoundland, St. John’s A1B 3X5, Canada
| | - Zahra A. Tabasi
- Department
of Chemistry, Memorial University of Newfoundland, St. John’s A1B
3X7, Canada
| | - Faisal Khan
- Department
of Process Engineering, Memorial University
of Newfoundland, St. John’s A1B 3X5, Canada
| | - Abdullah Alodhayb
- Department
of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yan Zhang
- Department
of Process Engineering, Memorial University
of Newfoundland, St. John’s A1B 3X5, Canada
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13
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Krishnan V, Pandey GR, Babu KA, Paramasivam S, Kumar SS, Balasubramanian S, Ravichandiran V, Pazhani GP, Veerapandian M. Chitosan grafted butein: A metal-free transducer for electrochemical genosensing of exosomal CD24. Carbohydr Polym 2021; 269:118333. [PMID: 34294343 DOI: 10.1016/j.carbpol.2021.118333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/24/2021] [Accepted: 06/09/2021] [Indexed: 12/19/2022]
Abstract
Metal-free cost-efficient biocompatible molecules are beneficial for opto-electrochemical bioassays. Herein, chitosan (CS) conjugated butein is prepared via graft polymerization. Structural integrity between radical active sites of CS and its probable conjugation routes with reactive OH group of butein during grafting were comprehensively studied using optical absorbance/emission property, NMR, FT-IR and XPS analysis. Fluorescence emission of CS-conjugated butein (CSB) was studied in dried flaky state as well as in drop casted form. Cyclic voltammetric study of CSB modified glassy carbon electrode exhibits 2e-/2H+ transfer reaction in phosphate buffered saline electrolyte following a surface-confined process with a correlation coefficient of 0.99. Unlike pristine butein, CSB modified electrode display a highly reversible redox behavior under various pH ranging from 4 to 9. For the proof-of-concept CSB-modified flexible screen printed electrodes were processed for electrochemical biosensing of exosomal CD24 specific nucleic acid at an ultralow sample concentration, promising for ovarian cancer diagnosis.
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Affiliation(s)
- Vinoth Krishnan
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India
| | - Gaurav R Pandey
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Kannadasan Anand Babu
- Dr. A.P.J Abdul Kalam Centre of Excellence in Innovation and Entrepreneurship, Dr. M.G.R Educational and Research Institute, Chennai 600 095, Tamil Nadu, India
| | - Selvaraj Paramasivam
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Shanmugam Senthil Kumar
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Subramanian Balasubramanian
- Electroplating and Metal Finishing Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India
| | - Velayutham Ravichandiran
- National Institute of Pharmaceutical Education and Research, Kolkata, West Bengal 700 054, India
| | - Gururaja Perumal Pazhani
- Chettinad School of Pharmaceutical Sciences, Chettinad Academy of Research and Education, Rajiv Gandhi Salai, (OMR), Kelambakkam 603 103, Tamil Nadu, India
| | - Murugan Veerapandian
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630 003, Tamil Nadu, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India.
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14
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Yue L, Zheng M, Khan IM, Wang Z. Chlorin e6 conjugated chitosan as an efficient photoantimicrobial agent. Int J Biol Macromol 2021; 183:1309-1316. [PMID: 34000311 DOI: 10.1016/j.ijbiomac.2021.05.085] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/25/2021] [Accepted: 05/12/2021] [Indexed: 12/17/2022]
Abstract
The development of antibacterial agents with high bacteria-binding capability and antibacterial efficiency is highly desirable. Herein, cationic polysaccharide chitosan (CS) was combined with photosensitizer Chlorin e6 (Ce6) to construct a novel photodynamic antibacterial agent (CS-Ce6 conjugates) for combating gram-positive bacteria Staphylococcus aureus (S. aureus) and gram-negative bacteria Escherichia coli (E. coli). CS-Ce6 conjugates with different degrees of substitution (DS) were synthesized and characterized by a spectroscopic method and organic elemental analysis to understand the relationship between structure and antibacterial effect. CS-Ce6 conjugates revealed good reactive oxygen species (ROS) generation ability and photodynamic antibacterial effect. Meanwhile, they both were positively correlated with DS in the range of 4.81% ~ 11.56% resulting in stronger photodynamic antibacterial ability. These findings highlight that CS-Ce6 conjugates have the potential as an effective photodynamic bactericidal agent in the antibacterial field.
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Affiliation(s)
- Lin Yue
- State Key Laboratory of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; International Joint Laboratory on Food Safety, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China.
| | - Meihong Zheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China
| | - Imran Mahmood Khan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; International Joint Laboratory on Food Safety, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Lihu Road 1800, Wuxi 214122, PR China.
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15
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Abstract
Photodynamic Inactivation is an innovative technique used to combat bacterial and viral infections which involves the use of photosensitizing agents along with light to generate cytotoxic reactive oxygen species able to kill bacteria and viruses. In the first section of this minireview, porphyrin-based fluorophores are shown to be remarkable dye candidates for PDI (photodynamic inactivation) applications. The second section is dedicated to the description of porphyrin-based antimicrobial materials and their potentialities for industrial applications such as in food packaging or antimicrobial medical devices and hygiene. Finally, the failings and perspectives of PDI are analyzed to demonstrate how the PDI technique could be an efficient and ecologically friendly antimicrobial technique.
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Affiliation(s)
| | | | - R. Guilard
- PorphyChem SAS, Dijon 21000, France
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB, UMR CNRS 6302, Université de Bourgogne Franche-Comté, F-21078, France
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16
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Fabrication, characterization, and anti‐free radical performance of edible packaging‐chitosan film synthesized from shrimp shell incorporated with ginger essential oil. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00875-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Taketa TB, Rocha Neto JBM, Dos Santos DM, Fiamingo A, Beppu MM, Campana-Filho SP, Cohen RE, Rubner MF. Tracking Sulfonated Polystyrene Diffusion in a Chitosan/Carboxymethyl Cellulose Layer-by-Layer Film: Exploring the Internal Architecture of Nanocoatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4985-4994. [PMID: 32316733 DOI: 10.1021/acs.langmuir.0c00544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Since chitosan presents the ability to interact with a wide range of molecules, it has been one of the most popular natural polymers for the construction of layer-by-layer thin films. In this study, depth-profiling X-ray photoelectron spectroscopy (XPS) was employed to track the diffusion of sulfonated polystyrene (SPS) in carboxymethyl cellulose/chitosan (CMC/Chi) multilayers. Our findings suggest that the CMC/Chi film does not constitute an electrostatic barrier sufficient to block diffusion of SPS, and that diffusion can be controlled by adjusting the diffusion time and the molecular weight of the polymers that compose the CMC/Chi system. In addition to monitoring the diffusion, it was also possible to observe a process of preferential interaction between Chi and SPS. Thus, the nitrogen N 1s peak, due to functional groups found exclusively in chitosan chains, was the key factor to identifying the molecular interactions involving chitosan and the different polyanions. Accordingly, the presence of a strong polyanion such as SPS shifts the N 1s peak to a higher level of binding energy. Such results highlight that understanding the fundamentals of polymer interactions is a major step to fine-tuning the internal architecture of LbL structures for specific applications (e.g., drug release).
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Affiliation(s)
- Thiago B Taketa
- School of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | | | - Danilo M Dos Santos
- Institute of Chemistry of São Carlos, University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
| | - Anderson Fiamingo
- Institute of Chemistry of São Carlos, University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
| | - Marisa M Beppu
- School of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | | | - Robert E Cohen
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael F Rubner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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18
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Chitosan Beads Incorporated with Essential Oil of Thymus capitatus: Stability Studies on Red Tilapia Fillets. Biomolecules 2019; 9:biom9090458. [PMID: 31500281 PMCID: PMC6769681 DOI: 10.3390/biom9090458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 11/18/2022] Open
Abstract
Red Tilapia is one of the most consumed but perishable fish in the world. As a result, it requires preservation methods for safe consumption without affecting its organoleptic characteristics. Chitosan encapsulating essential oils have shown to be an excellent food conservation method. For that reason, we carried out the study of the protective effect on red Tilapia fillets with chitosan beads (CB) incorporated with Thymus capitatus (TCEO) essential oil at 500, 1000, and 2000 mg/L to assess the conservation of the fillets. The TCEO composition was characterized by gas chromatography-mass spectrometry (CG-MS). For the other side, CB was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), thermogravimetric analysis (TGA), and Scanning electron microscopy (SEM). The protective effect of the beads was tested against the Gram-positive and Gram-negative bacteria growth for four weeks. The results showed an inhibition effect in Gram-positive bacteria at higher TCEO concentration (1000 and 2000 mg/L). Besides that, the pH, total volatile basic nitrogen (T-BNV-N), color, and fillet texture were evaluated as quality attributes. The results suggested that the incorporation of the CB-TCEO allowed a higher contact of the active compounds with the food surface, which reflected more excellent stability. The quality attributes of the fillets were preserved for 26 days, suggesting its uses for the treatment for perishable food.
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19
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Castro KADF, Moura NMM, Figueira F, Ferreira RI, Simões MMQ, Cavaleiro JAS, Faustino MAF, Silvestre AJD, Freire CSR, Tomé JPC, Nakagaki S, Almeida A, Neves MGPMS. New Materials Based on Cationic Porphyrins Conjugated to Chitosan or Titanium Dioxide: Synthesis, Characterization and Antimicrobial Efficacy. Int J Mol Sci 2019; 20:E2522. [PMID: 31121942 PMCID: PMC6566955 DOI: 10.3390/ijms20102522] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 11/28/2022] Open
Abstract
The post-functionalization of 5,10,15-tris(1-methylpyridinium-4-yl)-20-(pentafluorophenyl)porphyrin tri-iodide, known as a highly efficient photosensitizer (PS) for antimicrobial photodynamic therapy (aPDT), in the presence of 3- or 4-mercaptobenzoic acid, afforded two new tricationic porphyrins with adequate carboxylic pending groups to be immobilized on chitosan or titanium oxide. The structural characterization of the newly obtained materials confirmed the success of the porphyrin immobilization on the solid supports. The photophysical properties and the antimicrobial photodynamic efficacy of the non-immobilized porphyrins and of the new conjugates were evaluated. The results showed that the position of the carboxyl group in the mercapto units or the absence of these substituents in the porphyrin core could modulate the action of the photosensitizer towards the bioluminescent Gram-negative Escherichia coli bacterium. The antimicrobial activity was also influenced by the interaction between the photosensitizer and the type of support (chitosan or titanium dioxide). The new cationic porphyrins and some of the materials were shown to be very stable in PBS and effective in the photoinactivation of E. coli bacterium. The physicochemical properties of TiO2 allowed the interaction of the PS with its surface, increasing the absorption profile of TiO2, which enables the use of visible light, inactivating the bacteria more efficiently than the corresponding PS immobilized on chitosan.
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Affiliation(s)
- Kelly A D F Castro
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nuno M M Moura
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Flávio Figueira
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Rosalina I Ferreira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Mário M Q Simões
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Amparo F Faustino
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | - Carmen S R Freire
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - João P C Tomé
- CQE, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, n1, 1049-001 Lisboa, Portugal.
| | - Shirley Nakagaki
- Laboratório de Bioinorgânica e Catálise, Departamento de Química, Universidade Federal do Paraná, Curitiba, Paraná 81531-990, Brasil.
| | - A Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Graça P M S Neves
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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20
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Optical Recognition of Ammonia and Amine Vapor Using "Turn-on" Fluorescent Chitosan Nanoparticles Imprinted on Cellulose Strips. J Fluoresc 2019; 29:693-702. [PMID: 31041695 DOI: 10.1007/s10895-019-02381-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/17/2019] [Indexed: 12/16/2022]
Abstract
A practical fluorescent test dipstick for an efficient recognition of ammonia and amines vapors was developed. The prepared testing strip was based on a composite of molecularly imprinted chitosan nanoparticles, supported on cellulose paper assay, with artificial fluorescent receptor sites for ammonia/amines recognition in aqueous and gaseous phases. A modified chitosan nanoparticles containing fluorescein molecules, were successfully prepared and employed on cellulose paper strip creating fluorescent cellulose (FL-Cell) to act as "turn-on" fluorescent sensor for sensing and determining ammonia and organic amine vapor. We employed chitosan nanoparticles that had fluorescein incorporated as the fluorescent probe molecule, with a readout limit achieved for aqueous ammonia as low as 280 ppm at room temperature and atmospheric pressure. The sensor responded linearly relying on the aqueous ammonia concentration in the range of 0.13-280 ppm. The chromogenic fluorescent cellulose platform response depended on the acid-base characteristic effects of the fluorescein probe. The protonated form of fluorescein molecules immobilized within the chitosan nanoparticles were in a nanoenvironment demonstrating only weak fluorescence. When binding to ammonia/amine vapor, the fluorescein active sites were deprotonated and exhibited higher "turned-on" fluorescence as a result of exposure to those alkaline species. The simple fabrication and abovementioned characteristics of such fluorescent chitosan nanoparticles are such that they should be applicable for monitoring of ammonia/amines in either aqueous or vapor states. We studied the distribution of the fluorescent chitosan onto paper sheets fabricated from bleached bagasse pulp and coated with two different thicknesses of a fluorescent nanochitosan and blank nanochitosan solutions. A thin fluorescent nanochitosan layer was created on the surface of cellulose strips using an applicator. Its distribution was assessed by scanning electron microscopic (SEM) and transmission electron microscopic (TEM) analysis as well as Fourier-transform infrared spectroscopic (FT-IR) measurements. The mechanical properties were also tested. The exploitation of this "turn-on" fluorescence sensor invented platform should be amenable to different situations where determination of ammonia/amine vapor or aqueous solution is required.
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21
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Theranostic Nanoplatforms as a Promising Diagnostic and Therapeutic Tool for Staphylococcus aureus. Nanotheranostics 2019. [DOI: 10.1007/978-3-030-29768-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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22
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Singh N, Rai P, Ali MA, Kumar R, Sharma A, Malhotra BD, John R. A hollow-nanosphere-based microfluidic biosensor for biomonitoring of cardiac troponin I. J Mater Chem B 2019. [DOI: 10.1039/c9tb00126c] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cardiovascular diseases (CVDs) are the leading causes of death worldwide.
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Affiliation(s)
- Nawab Singh
- Department of Biomedical Engineering
- Indian Institute of Technology Hyderabad
- India
| | - Prabhakar Rai
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
- Wildlife Section
| | - Md. Azahar Ali
- Department of Electrical and Computer Engineering
- Iowa State University
- Ames
- USA
| | - Rudra Kumar
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
| | - Ashutosh Sharma
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
| | - B. D. Malhotra
- Department of Biotechnology
- Delhi Technological University
- Delhi-110042
- India
| | - Renu John
- Department of Biomedical Engineering
- Indian Institute of Technology Hyderabad
- India
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23
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Preparation, characterization and functional evaluation of chitosan-based films with zein coatings produced by cold plasma. Carbohydr Polym 2018; 202:39-46. [DOI: 10.1016/j.carbpol.2018.08.122] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 08/26/2018] [Accepted: 08/28/2018] [Indexed: 01/08/2023]
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24
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Valencia C, Valencia CH, Zuluaga F, Valencia ME, Mina JH, Grande-Tovar CD. Synthesis and Application of Scaffolds of Chitosan-Graphene Oxide by the Freeze-Drying Method for Tissue Regeneration. Molecules 2018; 23:E2651. [PMID: 30332775 PMCID: PMC6222393 DOI: 10.3390/molecules23102651] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/01/2018] [Accepted: 10/08/2018] [Indexed: 12/16/2022] Open
Abstract
Several biomaterials, including natural polymers, are used to increase cellular interactions as an effective way to treat bone injuries. Chitosan (CS) is one of the most studied biocompatible natural polymers. Graphene oxide (GO) is a carbon-based nanomaterial capable of imparting desired properties to the scaffolds. In the present study, CS and GO were used for scaffold preparation. CS was extracted from the mycelium of the fungus Aspergillus niger. On the other hand, GO was synthesized using an improved Hummers-Offemann method and was characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, atomic force microscopy (AFM), X-ray diffraction (XRD), and dynamic light scattering (DLS). Subsequently, three formulations (GO 0%, 0.5%, and 1%) were used to prepare the scaffolds by the freeze-drying technique. The scaffolds were characterized by FTIR, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), to determine their thermal stability and pore size, demonstrating that their stability increased with the increase of GO amount. Finally, the scaffolds were implanted, recollected 30 days later, and studied with an optical microscope, which evidenced the recovery of the tissue architecture and excellent biocompatibility. Hence, these results strongly suggested the inherent nature of chitosan/graphene oxide (CS/GO) scaffolds for their application in bone tissue regeneration.
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Affiliation(s)
- Cesar Valencia
- Laboratorio SIMERQO polímeros, Departamento de Química, Universidad del Valle, Calle 13 No 100-00, 76001 Cali, Colombia.
| | - Carlos H Valencia
- Escuela de Odontología, Grupo biomateriales dentales, Universidad del Valle, Calle 13 No 100-00, 76001 Cali, Colombia.
| | - Fabio Zuluaga
- Laboratorio SIMERQO polímeros, Departamento de Química, Universidad del Valle, Calle 13 No 100-00, 76001 Cali, Colombia.
| | - Mayra E Valencia
- Grupo de Materiales Compuestos, Escuela de Ingeniería de Materiales, Universidad del Valle, Calle 13 No 100-00, 76001 Cali, Colombia.
| | - José H Mina
- Grupo de Materiales Compuestos, Escuela de Ingeniería de Materiales, Universidad del Valle, Calle 13 No 100-00, 76001 Cali, Colombia.
| | - Carlos David Grande-Tovar
- Grupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 No 8-49, 081008 Puerto Colombia, Colombia.
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25
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Q Mesquita M, J Dias C, P M S Neves MG, Almeida A, F Faustino MA. Revisiting Current Photoactive Materials for Antimicrobial Photodynamic Therapy. Molecules 2018; 23:E2424. [PMID: 30248888 PMCID: PMC6222430 DOI: 10.3390/molecules23102424] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 12/22/2022] Open
Abstract
Microbial infection is a severe concern, requiring the use of significant amounts of antimicrobials/biocides, not only in the hospital setting, but also in other environments. The increasing use of antimicrobial drugs and the rapid adaptability of microorganisms to these agents, have contributed to a sharp increase of antimicrobial resistance. It is obvious that the development of new strategies to combat planktonic and biofilm-embedded microorganisms is required. Photodynamic inactivation (PDI) is being recognized as an effective method to inactivate a broad spectrum of microorganisms, including those resistant to conventional antimicrobials. In the last few years, the development and biological assessment of new photosensitizers for PDI were accompanied by their immobilization in different supports having in mind the extension of the photodynamic principle to new applications, such as the disinfection of blood, water, and surfaces. In this review, we intended to cover a significant amount of recent work considering a diversity of photosensitizers and supports to achieve an effective photoinactivation. Special attention is devoted to the chemistry behind the preparation of the photomaterials by recurring to extensive examples, illustrating the design strategies. Additionally, we highlighted the biological challenges of each formulation expecting that the compiled information could motivate the development of other effective photoactive materials.
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Affiliation(s)
- Mariana Q Mesquita
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Biomedical Sciences and iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Cristina J Dias
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Maria G P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Adelaide Almeida
- Department of Biology CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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26
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Abstract
This study describes the first example of a hybrid material comprising corrole- and silica-coated magnetite nanoparticles. Firstly, cuboid and spheroid magnetite nanoparticles were prepared using a simple hydrothermal route, followed by a silica coating. The hybrid nanoparticles were obtained by promoting a covalent link between a gallium (III)(pyridine) complex of 5,10,15-tris(pentafluorophenyl)corrole (GaPFC) and the surface of magnetite–silica core/shell nanoparticles (Fe3O4@SiO2), shaped both as cuboids and spheroids. The hybrids were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), ultraviolet-visible spectrophotometry (UV-Vis) and transmission electron microscopy (TEM). Preliminary studies on the capacity of singlet oxygen generation of the hybrid nanoparticles showed that these have lower efficiency values when compared to the pure corrole compound.
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27
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Synthesis and antioxidant action of chitosan derivatives with amino-containing groups via azide-alkyne click reaction and N-methylation. Carbohydr Polym 2018; 199:583-592. [PMID: 30143166 DOI: 10.1016/j.carbpol.2018.07.056] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/25/2018] [Accepted: 07/17/2018] [Indexed: 01/04/2023]
Abstract
Amino functionality has been paid growing attention in chemical modification of polysaccharides due to their potential biomedical applications. Here, the preparation of novel antioxidant materials based on chitosan derivatives bearing amino-containing groups equipped with 1,2,3-triazole and 1,2,3-triazolium by Cuprous-catalyzed azide-alkyne cycloaddition and N-methylation was described for the first time. The structural characteristics of the synthesized derivatives were examined by FTIR, 1H NMR, and elemental analysis. The antioxidant activities of the chitosan derivatives were assessed in vitro. The results indicated that chitosan derivatives bearing 1,2,3-triazoles displayed superior antioxidant activity over pristine chitosan, especially against superoxide anion radical. Moreover, antioxidant efficiency of chitosan derivatives further enhanced after N-methylation of 1,2,3-triazole moieties with iodomethane, which is comparative to that of ascorbic acid. Notably, of all chitosan derivatives bearing 1,2,3-triazole or 1,2,3-triazolium moieties, acylhydrazine-functionalized and amino-functionalized chitosan showed the stronger antioxidant capacity than hydroxyl-modified chitosan at the test concentration. Besides, the cytotoxicities of them were also evaluated in vitro on HaCaT cells. These results suggested that amino and acylhydrazine-functionalized chitosan derivatives with 1,2,3-triazolium could be used as novel antioxidant biomaterials.
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Cardote TAF, Barata JFB, Amador C, Alves E, Neves MGPMS, Cavaleiro JAS, Cunha Â, Almeida A, Faustino MAF. Evaluation of meso-substituted cationic corroles as potential antibacterial agents. AN ACAD BRAS CIENC 2018; 90:1175-1185. [PMID: 29873668 DOI: 10.1590/0001-3765201820170824] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 12/06/2017] [Indexed: 12/24/2022] Open
Abstract
Cationic derivatives of 5,10,15-tris[4-(pyridin-4-ylsulphanyl)-2,3,5,6-tetrafluorophenyl]-corrolategallium(III)pyridine and 5,10,15-tris[4-(pyridin-2-ylsulfanyl)-2,3,5,6-tetrafluorophenyl]-correlategallium(III)pyridine were synthesized and their photosensitizing properties against the naturally bioluminescent Gram-negative bacterium Allivibrio fischeri were evaluated. The cationic corrole derivatives exhibited antibacterial activity at micromolar concentrations against this Gram-negative bacterium strain.
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Affiliation(s)
| | | | - Carolina Amador
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Eliana Alves
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | | | | | - Ângela Cunha
- Centro de Estudos do Ambiente e do Mar, Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Centro de Estudos do Ambiente e do Mar, Department of Biology, University of Aveiro, Aveiro, Portugal
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Bio-active nanocomposite films based on nanocrystalline cellulose reinforced styrylquinoxalin-grafted-chitosan: Antibacterial and mechanical properties. Int J Biol Macromol 2018; 114:733-740. [DOI: 10.1016/j.ijbiomac.2018.03.114] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/05/2018] [Accepted: 03/21/2018] [Indexed: 01/25/2023]
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30
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Chen S, Li Q, Wang X, Yang YW, Gao H. Multifunctional bacterial imaging and therapy systems. J Mater Chem B 2018; 6:5198-5214. [DOI: 10.1039/c8tb01519h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Advanced antibacterial materials are classified and introduced, and their applications in multimodal imaging and therapy are reviewed.
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Affiliation(s)
- Shuai Chen
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Qiaoying Li
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xin Wang
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ying-Wei Yang
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Hui Gao
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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Zheng K, Tian Y, Fan M, Zhang J, Cheng J. Recyclable, shape-memory, and self-healing soy oil-based polyurethane crosslinked by a thermoreversible Diels-Alder reaction. J Appl Polym Sci 2017. [DOI: 10.1002/app.46049] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kaiwen Zheng
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; Beijing 100029 People's Republic of China
| | - Yazhou Tian
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; Beijing 100029 People's Republic of China
| | - Mengjin Fan
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; Beijing 100029 People's Republic of China
| | - Junying Zhang
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; Beijing 100029 People's Republic of China
| | - Jue Cheng
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; Beijing 100029 People's Republic of China
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33
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Mishra SK, Kannan S. Doxorubicin-Conjugated Bimetallic Silver–Gadolinium Nanoalloy for Multimodal MRI-CT-Optical Imaging and pH-Responsive Drug Release. ACS Biomater Sci Eng 2017; 3:3607-3619. [DOI: 10.1021/acsbiomaterials.7b00498] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sandeep K. Mishra
- Centre for Nanoscience and Technology, Pondicherry University, R. V. Nagar, Kalapet, Puducherry 605 014, India
| | - S. Kannan
- Centre for Nanoscience and Technology, Pondicherry University, R. V. Nagar, Kalapet, Puducherry 605 014, India
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Pal AK, Katiyar V. Melt processing of biodegradable poly(lactic acid)/functionalized chitosan nanocomposite films: mechanical modeling with improved oxygen barrier and thermal properties. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1305-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mishra SK, Kannan S. A Bimetallic Silver-Neodymium Theranostic Nanoparticle with Multimodal NIR/MRI/CT Imaging and Combined Chemo-photothermal Therapy. Inorg Chem 2017; 56:12054-12066. [PMID: 28933536 DOI: 10.1021/acs.inorgchem.7b02103] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An engineered metallic nanostructure is an excellent candidate for "theranosis" of cancer, having intrinsic properties of multimodal imaging and therapy. Toward this target, the development of silver-neodymium bimetallic nanoparticles (Ag-Nd BNPs) via microwave-assisted polyol synthesis is presented. The resultant Ag-Nd BNPs exhibit good monodispersity with average size of 10 nm, fluorescence in the near-infrared (NIR) region, and magnetic properties. The Ag-Nd BNPs also validate MRI, CT, and NIR trimodal imaging ability and enunciate valuable temperature response upon irradiation under a NIR laser. Aided by chitosan functionalization on the surface, the Ag-Nd BNPs deliver good biocompatibility and also promote the loading of paclitaxel, an anticancer drug. Isothermal titration calorimetry affirms the combination of strong binding affinity of drug and high loading efficiency of 7 drug molecules per nanoparticle. Moreover, Ag-Nd BNPs also illustrate a highly efficient photothermal effect in PBS. Therefore, the synergistic effects of paclitaxel and the photothermal effect make BNPs excellent "combined therapeutic agents", and also give them the important ability to destroy cancer cells in vitro at very low dose in comparison to single therapy. Thus, the Ag-Nd BNPs unveil a combination of MRI/CT/NIR imaging and chemo-photothermal therapy that ensures accurate diagnosis at an early stage and comprehensive eradication of tumor cells without affecting healthy cells.
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Affiliation(s)
- Sandeep K Mishra
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry 605 014, India
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry 605 014, India
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36
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Ultrafast Dynamics of Sb-Corroles: A Combined Vis-Pump Supercontinuum Probe and Broadband Fluorescence Up-Conversion Study. Molecules 2017; 22:molecules22071174. [PMID: 28703762 PMCID: PMC6152390 DOI: 10.3390/molecules22071174] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/01/2017] [Accepted: 07/10/2017] [Indexed: 12/17/2022] Open
Abstract
Corroles are a developing class of tetrapyrrole-based molecules with significant chemical potential and relatively unexplored photophysical properties. We combined femtosecond broadband fluorescence up-conversion and fs broadband Vis-pump Vis-probe spectroscopy to comprehensively characterize the photoreaction of 5,10,15-tris-pentafluorophenyl-corrolato-antimony(V)-trans-difluoride (Sb-tpfc-F₂). Upon fs Soret band excitation at ~400 nm, the energy relaxed almost completely to Q band electronic excited states with a time constant of 500 ± 100 fs; this is evident from the decay of Soret band fluorescence at around 430 nm and the rise time of Q band fluorescence, as well as from Q band stimulated emission signals at 600 and 650 nm with the same time constant. Relaxation processes on a time scale of 10 and 20 ps were observed in the fluorescence and absorption signals. Triplet formation showed a time constant of 400 ps, with an intersystem crossing yield from the Q band to the triplet manifold of between 95% and 99%. This efficient triplet formation is due to the spin-orbit coupling of the antimony ion.
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Yadav P, Rathi P, Sankar M. Facile Generation of A 2B Corrole Radical Using Fe(III) Salts and Its Spectroscopic Properties. ACS OMEGA 2017; 2:959-965. [PMID: 30023622 PMCID: PMC6044766 DOI: 10.1021/acsomega.6b00430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 03/01/2017] [Indexed: 06/08/2023]
Abstract
A carboxyphenyl-substituted corrole, 5,15-dimesityl-10-(4'-carboxyphenyl)corrole (1), has been synthesized and characterized by UV-vis, fluorescence, 1H NMR spectroscopy, and electrospray ionization (ESI)-mass spectrometry (MS) techniques. An air-stable corrole radical (1•) was obtained with the addition of the Fe(III) salt to 1 in dimethyl sulfoxide (DMSO) and characterized by UV-vis, fluorescence, electron paramagnetic resonance (EPR), ESI-MS techniques, and density functional theory studies. The neutral corrole radical (1•) exhibited a sharp EPR signal at g = 2.006 in DMSO. The reduced bipyrrolic (N-C-C-N) dihedral angle (χ) of 1 from 19.11 to 7.07° leads to the release of angle strain, which is the driving force for the generation of 1•. Notably, trans-dimesityl groups prevent the dimerization or aggregation of the corrole radical. Further, 1• was converted to 1 by excess addition of Fe(II) salts in DMSO at 298 K.
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Mishra SK, Kannan S. Microwave Synthesis of Chitosan Capped Silver-Dysprosium Bimetallic Nanoparticles: A Potential Nanotheranosis Device. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13687-13696. [PMID: 27981845 DOI: 10.1021/acs.langmuir.6b03438] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Accurate imaging of the structural and functional state of biological targets is a critical task. To amend paucities associated with individual imaging, there is high interest to develop a multifunctional theranostic devices for cancer diagnosis and therapy. Herein, chitosan coated silver/dysprosium bimetallic nanoparticles (BNPs) were synthesized through a green chemistry route and characterization results inferred that the BNPs are crystalline, spherical, and of size ∼10 nm. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and X-ray photoelectron spectroscopy (XPS) confirm the reduced metallic states of Ag and Dy in nanoparticles. These BNPs demonstrate high emission in a second near-infrared (NIR-II, 1000-1400 nm) biological window on excitation at 808 nm. Moreover, magnetization and magnetic resonance imaging (MRI) studies perceive the inherent paramagnetic features of Dy component that displays dark T2 contrast and high relaxivity. Due to high X-ray attenuation effect, BNPs exhibit better Hounsfield unit (HU) value than the reported contrast agents. BNPs unveil good biocompatibility and also express sturdy therapeutic effect in HeLa cells when tethered with doxorubicin.
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Affiliation(s)
- Sandeep K Mishra
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry-605 014, India
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry-605 014, India
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Barata JFB, Neves MGPMS, Faustino MAF, Tomé AC, Cavaleiro JAS. Strategies for Corrole Functionalization. Chem Rev 2016; 117:3192-3253. [PMID: 28222602 DOI: 10.1021/acs.chemrev.6b00476] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This review covers the functionalization reactions of meso-arylcorroles, both at the inner core, as well as the peripheral positions of the macrocycle. Experimental details for the synthesis of all known metallocorrole types and for the N-alkylation reactions are presented. Key peripheral functionalization reactions such as halogenation, formylation, carboxylation, nitration, sulfonation, and others are discussed in detail, particularly the nucleophilic aromatic substitution and the participation of corroles in cycloaddition reactions as 2π or 4π components (covering Diels-Alder and 1,3-dipolar cycloadditions). Other functionalizations of corroles include a large diversity of reactions, namely Wittig reactions, reactions with methylene active compounds, formation of amines, amides, and imines, and metal catalyzed reactions. At the final section, the reactions involving oxidation and ring expansion of the corrole macrocycle are described comprehensively.
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Affiliation(s)
- Joana F B Barata
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Graça P M S Neves
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - Augusto C Tomé
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
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Mishra SK, Raveendran S, Ferreira JMF, Kannan S. In Situ Impregnation of Silver Nanoclusters in Microporous Chitosan-PEG Membranes as an Antibacterial and Drug Delivery Percutaneous Device. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10305-10316. [PMID: 27685160 DOI: 10.1021/acs.langmuir.6b02844] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An in situ synthesis method for preparing silver nanoclusters (AgNCs) embedded in chitosan-polyethylene glycol (CS-PEG) membranes is disclosed. The aim is to develop implantable multifunctional devices for biofilm inhibition and drug release to reduce percutaneous device related complications (PDRCs). A multiple array of characterization techniques confirmed the formation of fluorescent AgNCs with sizes of ∼3 nm uniformly distributed in CS-PEG matrix and their active role in determining the fraction and interconnectivity of the microporous membranes. The presence and increasing contents of AgNCs enhanced the mechanical stability of membranes and decreased their susceptibility to degradation in the presence of lysozyme and H2O2. Moreover, the presence and increasing concentrations of AgNCs hindered biofilm formation against Escherichia coli (Gram negative) and Staphylococcus aureus (Gram positive) and enabled a sustainable release of an anti-inflammatory drug naproxen in vitro until 24 h. The overall results gathered and reported in this work make the AgNCs impregnated CS-PEG membranes highly promising multifunctional devices combining efficient antibacterial activity and biocompatibility with active local drug delivery.
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Affiliation(s)
- Sandeep K Mishra
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry-605 014, India
| | - Subina Raveendran
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry-605 014, India
| | - J M F Ferreira
- Department of Materials and Ceramics Engineering, University of Aveiro, CICECO , Aveiro 3810 193, Portugal
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University , Puducherry-605 014, India
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Hu Q, Chen N, Feng C, Hu W, Liu H. Kinetic and isotherm studies of nitrate adsorption on granular Fe–Zr–chitosan complex and electrochemical reduction of nitrate from the spent regenerant solution. RSC Adv 2016. [DOI: 10.1039/c6ra04556a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a granular Fe–Zr–chitosan complex was prepared to remove nitrate from aqueous solution and an undivided cylindrical electrochemical cell was constructed to treat the spent regenerant solution, thus achieving separation and conversion.
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Affiliation(s)
- Qili Hu
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing
- China
- Key Laboratory of Groundwater Cycle and Environment Evolution
| | - Nan Chen
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing
- China
- Key Laboratory of Groundwater Cycle and Environment Evolution
| | - Chuanping Feng
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing
- China
- Key Laboratory of Groundwater Cycle and Environment Evolution
| | - Weiwu Hu
- The Journal Center
- China University of Geosciences (Beijing)
- Beijing
- China
| | - Hengyuan Liu
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing
- China
- Key Laboratory of Groundwater Cycle and Environment Evolution
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