1
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Cybulski O, Quintana C, Siek M, Grzybowski BA. Stirring-Controlled Synthesis of Ultrastable, Fluorescent Silver Nanoclusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400306. [PMID: 38934325 DOI: 10.1002/smll.202400306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 06/09/2024] [Indexed: 06/28/2024]
Abstract
This paper describes how macroscopic stirring of a reaction mixture can be used to produce nanostructures exhibiting properties not readily achievable via other protocols. In particular, it is shown that by simply adjusting the stirring rate, a standard glutathione-based method-to date, used to produce only marginally stable fluorescent silver nanoclusters, Ag NCs-can be boosted to yield nanoclusters retaining fluorescence for unprecedented periods of over 2 years. This enhancement derives not simply from increased homogenization of the reaction mixture but mainly from an appropriately timed delivery of oxygen from above the reaction mixture. In effect, oxygen serves as a reagent that dictates size, structure, stability, and functional properties of the growing nanoobjects.
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Affiliation(s)
- Olgierd Cybulski
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Cristóbal Quintana
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Marta Siek
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Bartosz A Grzybowski
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
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2
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Saulais M, Salem S, Sillard C, Choisy P, Dufresne A. Green synthesis of sacrificial UV-sensitive core and biobased shell for obtaining optically hollow nanoparticles. J Colloid Interface Sci 2024; 678:971-983. [PMID: 39270397 DOI: 10.1016/j.jcis.2024.08.260] [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: 05/13/2024] [Revised: 08/30/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024]
Abstract
Hollow nanoparticles have been extensively studied in recent years. Obtaining such structures with biobased materials, following greener synthetic routes, is still challenging, especially if accurate particle dimensions are required. This work reports the use of an innovative hybrid silica core (Si@azo) containing UV-sensitive molecule, wrapped in biobased multilayer shell composed of polysaccharides. It is a promising strategy for obtaining optically hollow nanoparticles. Indeed, Si@azo cores have the ability to be partially degraded when irradiated with UV light. Combined with a well-controlled and monodisperse diameter, they provide a good basis for layer-by-layer assembly, leading to a multilayer shell with controlled composition and thickness. Finally, UV irradiation of such a core-shell structure is harmless to the polysaccharide shell, but does impact the hybrid silica core, as revealed by turbidity measurements, among other. Each step, i.e. core synthesis, shell addition, and core-shell irradiation, has been carefully characterized at the macro (Fourier-transform infrared spectroscopy - FTIR, Dynamic Light Scattering - DLS, Zeta-potential measurement, Surface Plasmon Resonance - SPR, turbidity) and microscale (Transmission and Scanning Electron Microscopies). Emphasis is put on how turbidity measurements can be related to the core refractive index (ncore), giving information on the state of core degradation and whether the core-shell particle is optically hollow.
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Affiliation(s)
- Marlène Saulais
- Univ. Grenoble Alpes, CNRS, Grenoble-INP, LGP2, F-38000 Grenoble, France
| | - Sara Salem
- Univ. Grenoble Alpes, CNRS, Grenoble-INP, LGP2, F-38000 Grenoble, France
| | - Cécile Sillard
- Univ. Grenoble Alpes, CNRS, Grenoble-INP, LGP2, F-38000 Grenoble, France.
| | | | - Alain Dufresne
- Univ. Grenoble Alpes, CNRS, Grenoble-INP, LGP2, F-38000 Grenoble, France.
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3
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Choi W, Kohane DS. Hybrid Nanoparticle-Hydrogel Systems for Drug Delivery Depots and Other Biomedical Applications. ACS NANO 2024; 18:22780-22792. [PMID: 39140388 DOI: 10.1021/acsnano.4c06888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Hydrogel-based depots typically tend to remain where injected and have excellent biocompatibility but are relatively poor at controlling drug release. Nanoparticles (NPs) typically have the opposite properties. The smaller the NPs are, the more likely they are to leave the site of injection. Their biocompatibility is variable depending on the material but can be poor. However, NPs can be good at controlling drug release. In these and other properties, combining NPs and hydrogels can leverage their advantages and negate their disadvantages. This review highlights the rationale for hybrid NP-hydrogel systems in drug delivery, the basic methods of producing them, and examples where combining the two systems addressed specific problems.
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Affiliation(s)
- Wonmin Choi
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, Massachusetts 02115, United States
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, Massachusetts 02115, United States
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4
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Savvidou MG, Kontari E, Kalantzi S, Mamma D. Green Synthesis of Silver Nanoparticles Using the Cell-Free Supernatant of Haematococcus pluvialis Culture. MATERIALS (BASEL, SWITZERLAND) 2023; 17:187. [PMID: 38204044 PMCID: PMC10779655 DOI: 10.3390/ma17010187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
The green synthesis of silver nanoparticles (AgNPs) using the cell-free supernatant of a Haematococcus pluvialis culture (CFS) was implemented in the current study, under illumination conditions. The reduction of Ag+ to AgNPs by the CFS could be described by a pseudo-first-order kinetic equation at the temperature range tested. A high reaction rate during synthesis and stable AgNPs were obtained at 45 °C, while an alkaline pH (pH = 11.0) and a AgNO3 aqueous solution to CFS ratio of 90:10 (v/v) proved to be the most effective conditions in AgNPs synthesis. A metal precursor (AgNO3) at the concentration range tested (1-5 mM) was the limited reactant in the synthesis process. The synthesis of AgNPs was accomplished under static and agitated conditions. Continuous stirring enhanced the rate of reaction but induced aggregation at prolonged incubation times. Zeta potential and polydispersity index measurements indicated stable AgNPs and the majority of AgNPs formation occurred in the monodisperse phase. The X-ray diffraction (XRD) pattern revealed the face-centered cubic structure of the formed AgNPs, while TEM analysis revealed that the AgNPs were of a quasi-spherical shape with a size from 30 to 50 nm. The long-term stability of the AgNPs could be achieved in darkness and at 4 °C. In addition, the synthesized nanoparticles showed antibacterial activity against Escherichia coli.
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Affiliation(s)
- Maria G. Savvidou
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Evgenia Kontari
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
| | - Styliani Kalantzi
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
| | - Diomi Mamma
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
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Tinoco Navarro LK, Jaroslav C. Enhancing Photocatalytic Properties of TiO 2 Photocatalyst and Heterojunctions: A Comprehensive Review of the Impact of Biphasic Systems in Aerogels and Xerogels Synthesis, Methods, and Mechanisms for Environmental Applications. Gels 2023; 9:976. [PMID: 38131962 PMCID: PMC10742597 DOI: 10.3390/gels9120976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 12/23/2023] Open
Abstract
This review provides a detailed exploration of titanium dioxide (TiO2) photocatalysts, emphasizing structural phases, heterophase junctions, and their impact on efficiency. Key points include diverse synthesis methods, with a focus on the sol-gel route and variants like low-temperature hydrothermal synthesis (LTHT). The review delves into the influence of acid-base donors on gelation, dissects crucial drying techniques for TiO2 aerogel or xerogel catalysts, and meticulously examines mechanisms underlying photocatalytic activity. It highlights the role of physicochemical properties in charge diffusion, carrier recombination, and the impact of scavengers in photo-oxidation/reduction. Additionally, TiO2 doping techniques and heterostructures and their potential for enhancing efficiency are briefly discussed, all within the context of environmental applications.
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Affiliation(s)
- Lizeth Katherine Tinoco Navarro
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic;
| | - Cihlar Jaroslav
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic;
- Institute of Materials Science and Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic
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Yuan G, Wang C, Xi Z, Li S, Sun X, Hang P, Liu X, Han J, Guo R. Supramolecular Polyaniline-Metal Ion as Chiral Nanozymes for Enantioselective Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303739. [PMID: 37507827 DOI: 10.1002/smll.202303739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/21/2023] [Indexed: 07/30/2023]
Abstract
Understanding origin of asymmetric information encoded on chiral nanozymes is important in mediating enantioselective catalysis. Herein, the supramolecular chiral nanozymes constructed from P/M-polyaniline (P/M-PANI) nanotwists and metal ions (M2+ , M = Cu, Ni, Co, and Zn) are designed through thioglycolic acid (TA) without chiral molecules to show the regulated catalytic efficiency and enantioselectivity. With combination of chiral environment from supramolecular scaffolds and catalytic center from metal ions, the P-PANI-TA-M2+ as nanozymes show preference to 3,4-dihydroxy-S-phenylalanine (S-DOPA) oxidation while the M-PANI-TA-M2+ show better selectivity to R-DOPA oxidation. Among them, though the Cu2+ doped supramolecular nanotwists show the highest catalytic efficiency, the Co2+ doped ones with moderate catalytic efficiency can exhibit the best enantioselectivity with select factor as high as 2.07. The molecular dynamic (MD) simulation clarifies the mechanism of enantioselective catalysis caused by the differential kinetics with S/R-DOPA enantiomers adsorbed on chiral PANI surface and free in solution. This work systematically studies the synergistic effect between the chiral supramolecular nanostructures assembled by achiral species and metal ions as peroxidase-like catalytic centers to regulate the enantioselectivity, providing deep understanding of the origin of asymmetric catalysis and serving as strong foundation to guide the design of nanozymes with high enantioselectivity.
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Affiliation(s)
- Ganyin Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Chu Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Zheng Xi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Shixin Li
- School of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Xiaohuan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Pengyuan Hang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Xu Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
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7
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Kim KH, Bhujel R, Maharjan R, Lee JC, Jung HS, Kim HJ, Kim NA, Jeong SH. Biophysical characterization of siRNA-loaded lipid nanoparticles with different PEG content in an aqueous system. Eur J Pharm Biopharm 2023; 190:150-160. [PMID: 37516315 DOI: 10.1016/j.ejpb.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/15/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Although lipid nanoparticles (LNP) are potential carriers of various pharmaceutical ingredients, further investigation for maintaining their stability under various environmental stressors must be performed. This study evaluated the influence of PEGylation and stress conditions on the stability of siRNA-loaded LNPs with different concentrations of PEG (0.5 mol%; 0.5 % PEG-LNP and 1.0 mol%; 1.0 % PEG-LNP) anchored to their surface. We applied end-over-end agitation, elevated temperature, and repeated freeze and thaw (F/T) cycles as physicochemical stressors of pH and ionic strength. Dynamic light scattering (DLS), flow imaging microscopy (FIM), and ionic-exchange chromatography (IEX) were to determine the degree of aggregation and change in siRNA content. The results indicate that 0.5 % PEG-LNP resisted aggregation only at low pH levels or with salt, whereas 1.0 % PEG-LNP had increased colloidal stability except at pH 4. 0.5 % PEG-LNP withstood aggregation until 71 °C and three cycles of F/T. In contrast, 1.0 % PEG-LNP maintained colloidal stability at 90 °C and seven F/T cycles. Moreover, 1.0 % PEG-LNP had higher siRNA stability under all stress conditions. Therefore, to ensure the stability of LNP and encapsulated siRNA, the PEG concentration must be carefully controlled while considering LNPs' colloidal instability mechanisms under various stress conditions.
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Affiliation(s)
- Ki Hyun Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Ripesh Bhujel
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Ravi Maharjan
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Jae Chul Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Hun Soon Jung
- EnhancedBio Inc. R&D Center, Seoul 04779, Republic of Korea.
| | - Hye Jeong Kim
- EnhancedBio Inc. R&D Center, Seoul 04779, Republic of Korea.
| | - Nam Ah Kim
- College of Pharmacy, Mokpo National University, Jeonnam 58554, Republic of Korea.
| | - Seong Hoon Jeong
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
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8
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Hu X, Xu Y, Liu S, Gudda FO, Ling W, Qin C, Gao Y. Graphene Quantum Dots Nonmonotonically Influence the Horizontal Transfer of Extracellular Antibiotic Resistance Genes via Bacterial Transformation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301177. [PMID: 37144438 DOI: 10.1002/smll.202301177] [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: 02/09/2023] [Revised: 04/10/2023] [Indexed: 05/06/2023]
Abstract
Graphene quantum dots (GQDs) coexist with antibiotic resistance genes (ARGs) in the environment. Whether GQDs influence ARG spread needs investigation, since the resulting development of multidrug-resistant pathogens would threaten human health. This study investigates the effect of GQDs on the horizontal transfer of extracellular ARGs (i.e., transformation, a pivotal way that ARGs spread) mediated by plasmids into competent Escherichia coli cells. GQDs enhance ARG transfer at lower concentrations, which are close to their environmental residual concentrations. However, with further increases in concentration (closer to working concentrations needed for wastewater remediation), the effects of enhancement weaken or even become inhibitory. At lower concentrations, GQDs promote the gene expression related to pore-forming outer membrane proteins and the generation of intracellular reactive oxygen species, thus inducing pore formation and enhancing membrane permeability. GQDs may also act as carriers to transport ARGs into cells. These factors result in enhanced ARG transfer. At higher concentrations, GQD aggregation occurs, and aggregates attach to the cell surface, reducing the effective contact area of recipients for external plasmids. GQDs also form large agglomerates with plasmids and thus hindering ARG entrance. This study could promote the understanding of the GQD-caused ecological risks and benefit their safe application.
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Affiliation(s)
- Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanxing Xu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Si Liu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Fredrick Owino Gudda
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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9
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Zhao Z, Chen D, Lu M, Lin J, Hou Y, Zhang Q, Li Z, Jiao L, Ye Z, Lu J. Single-Piece Membrane Supercapacitor with Exceptional Areal/Volumetric Capacitance via Double-Face Print of Electrode/Electrolyte Active Ink. SMALL METHODS 2023:e2300178. [PMID: 37129554 DOI: 10.1002/smtd.202300178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/25/2023] [Indexed: 05/03/2023]
Abstract
Single-piece flexible supercapacitors (FSCs) have light and ultrathin superiorities, thereby having great potential in portable/wearable electronics. However, all the available single-piece FSCs are fabricated by in situ growth routes, which are incompatible with large-scale technology. This work designs a carboxymethyl cellulose/phytic acid/polyaniline ink, incorporating electrode with electrolyte active compositions. Based on the electrode/electrolyte active ink, a double-face print technique on mixed cellulose ester and nylon membranes to fabricate single-piece membrane-FSCs, where both sides of membranes can be utilized well, is proposed. Consequently, one FSC is measured to be only ≈0.785 cm2 in area, ≈0.021 g in weight, and ≈200 µm in thickness, while it has exceptional areal and volumetric capacitances up to 757 mF cm-2 and 37.8 F cm-3 , respectively, based on the entire device. It also exhibits high flexibility with a capacitance retention of 98% after 2000 bend cycles from 0° to 180°. The state-of-the-art FSCs are expected to have exciting prospects in portable/wearable electronics, smart reading, and flexible displays. The preparation strategy renders the massive production of large-area and mini-size arrayed FSCs, and also the "do-it-yourself" or homemade preparation, which adds more interest and designability for general users.
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Affiliation(s)
- Zhenyun Zhao
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- Donghai Laboratory, Zhoushan, 316021, China
| | - Dongliang Chen
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Ming Lu
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, P. R. China
| | - Jingwen Lin
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Yang Hou
- Donghai Laboratory, Zhoushan, 316021, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Qinghua Zhang
- Donghai Laboratory, Zhoushan, 316021, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Zhongjian Li
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Lei Jiao
- Donghai Laboratory, Zhoushan, 316021, China
- Ocean College, Zhejiang University, Zhoushan, 310621, China
| | - Zhizhen Ye
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Jianguo Lu
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- Donghai Laboratory, Zhoushan, 316021, China
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10
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Zhao H, Wang Y, Zhou Y. Accelerating the Gas-Solid Interactions for Conductometric Gas Sensors: Impacting Factors and Improvement Strategies. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3249. [PMID: 37110096 PMCID: PMC10146907 DOI: 10.3390/ma16083249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
Metal oxide-based conductometric gas sensors (CGS) have showcased a vast application potential in the fields of environmental protection and medical diagnosis due to their unique advantages of high cost-effectiveness, expedient miniaturization, and noninvasive and convenient operation. Of multiple parameters to assess the sensor performance, the reaction speeds, including response and recovery times during the gas-solid interactions, are directly correlated to a timely recognition of the target molecule prior to scheduling the relevant processing solutions and an instant restoration aimed for subsequent repeated exposure tests. In this review, we first take metal oxide semiconductors (MOSs) as the case study and conclude the impact of the semiconducting type as well as the grain size and morphology of MOSs on the reaction speeds of related gas sensors. Second, various improvement strategies, primarily including external stimulus (heat and photons), morphological and structural regulation, element doping, and composite engineering, are successively introduced in detail. Finally, challenges and perspectives are proposed so as to provide the design references for future high-performance CGS featuring swift detection and regeneration.
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11
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Marcial-Hernandez R, Giacalone S, Neal WG, Lee CS, Gilhooly-Finn PA, Mastroianni G, Meli D, Wu R, Rivnay J, Palma M, Nielsen CB. Aqueous processing of organic semiconductors enabled by stable nanoparticles with built-in surfactants. NANOSCALE 2023; 15:6793-6801. [PMID: 36946985 DOI: 10.1039/d2nr06024h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The introduction of oligoether side chains onto a polymer backbone can help to stabilise polymeric dispersions in water without the necessity of surfactants or additives when conjugated polymer nanoparticles are prepared. A series of poly(3-hexylthiophene) (P3HT) derivatives with different content of a polar thiophene derivative 3-((2-methoxyethoxy)methyl)thiophene was interrogated to find the effect of the polar chains on the stability of the formed nanoparticles, as well as their structural, optical, electrochemical, and electrical properties. Findings indicated that incorporation of 10-20 percent of the polar side chain led to particles that are stable over a period of 42 days, with constant particle size and polydispersity, however the particles from the polymer with 30 percent polar side chain showed aggregation effects. The polymer dispersions showed a stronger solid-like behaviour in water with decreasing polar side chain content, while thin film deposition from water was found to afford globular morphologies and crystallites with more isotropic orientation compared to conventional solution-processed films. As a proof-of-principle, field-effect transistors were fabricated directly from the aqueous dispersions demonstrating that polymers with hydrophilic moieties can be processed in water without the requirement of surfactants.
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Affiliation(s)
| | - Sofia Giacalone
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - William G Neal
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Chang-Seuk Lee
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Peter A Gilhooly-Finn
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Giulia Mastroianni
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Dilara Meli
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - Ruiheng Wu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, USA
| | - Matteo Palma
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Christian B Nielsen
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
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12
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Sarwar N, Zafar MS, Humayoun UB, Kim S, Ahmad SW, Kim YH, Yoon DH. Citrous Lime-A Functional Reductive Booster for Oil-Mediated Green Synthesis of Bioactive Silver Nanospheres for Healthcare Clothing Applications and Their Eco-Mapping with SDGs. Molecules 2023; 28:molecules28062802. [PMID: 36985774 PMCID: PMC10052960 DOI: 10.3390/molecules28062802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Silver nanoparticles (Ag-NPs) are most effective against pathogens and have widely been studied as antibacterial agents in commodity clothing, medical textile, and other hygiene products. However, prolonged utilization of silver and rapid mutation in bacterium stains has made them resistant to conventional silver agents. On the other hand, strict compliance against excessive utilization of toxic reagents and the current sustainability drive is forcing material synthesis toward green routes with extended functionality. In this study, we proposed an unprecedented chemical-free green synthesis of bioactive Ag-NPs without the incorporation of any chemicals. Cinnamon essential oil (ECO) was used as a bio-reducing agent with and without the mediation of lime extract. A rapid reaction completion with better shape and size control was observed in the vicinity of lime extract when incorporated into the reaction medium. The interaction of natural metabolites and citrus compounds with nanoparticles was established using Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The application of as-prepared nanoparticles on textiles encompasses extended bioactivity to treated fabric with infused easy-care performance. To the best of our knowledge, this is the first reported instance of utilizing bioactive silver nanoparticles as a functional finish, both as an antimicrobial and as for easy care in the absolute absence of toxic chemicals. The easy-care performance of fabric treated with lime-mediated nanoparticles was found to be 141O, which is around 26% better than bare cotton without any significant loss in fabric strength. Furthermore, to enlighten the sustainability of the process, the development traits were mapped with the United Nations Sustainable Development Goals (SDGs), which show significant influence on SDGs 3, 8, 9, and 14. With the effective suspension of microorganisms, added functionality, and eco-mapping with SDGs with the chemical-free synthesis of nanoparticles, widespread utilization can be found in various healthcare and hygiene products along with the fulfillment of sustainability needs.
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Affiliation(s)
- Nasir Sarwar
- Department of Textile Engineering, University of Engineering & Technology, Faisalabad Campus, Lahore 38000, Pakistan
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Muhammad Shahzad Zafar
- Department of Chemical Polymer and Composite Engineering, University of Engineering & Technology, Faisalabad Campus, Lahore 38000, Pakistan
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Usama Bin Humayoun
- Department of Textile Engineering, University of Engineering & Technology, Faisalabad Campus, Lahore 38000, Pakistan
| | - Suhyeon Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Syed Waqas Ahmad
- Department of Chemical Polymer and Composite Engineering, University of Engineering & Technology, Faisalabad Campus, Lahore 38000, Pakistan
| | - Yong Ho Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dae Ho Yoon
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
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13
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Yin W, Zhao TL, Wang YH, Yao QZ, Zhou GT. Mn 3O 4@polyaniline nanocomposite with multiple active sites to capture uranium(VI) and iodide: synthesis, performance, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:30130-30143. [PMID: 36427123 DOI: 10.1007/s11356-022-24073-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A major challenge for radioactive wastewater treatment and associated environmental remediation is how to simultaneously remove cationic and anionic radionuclides. Herein, a series of Mn3O4@polyaniline (Mn3O4@PANI) nanocomposites were successfully prepared and used to remove U(VI) and I- from aqueous solution, two highly concomitant species in nuclear pollution settings. Batch adsorption experiments reveal that the component Mn3O4 is predominantly responsible for U(VI) removal, but PANI for I-. The nanocomposite with 24.2 wt% Mn3O4 possesses high removal percentages (> 85%) either for U(VI) or I- over a wide pH range, fast removal kinetics, and excellent adsorption selectivity at high concentrations of competing ions. Benefiting from the contributions of the two components and the high adsorption affinities, the nanocomposite achieves the simultaneous removal to coexisting U(VI) and I-, with a maximum adsorption capacity 102.6 mg/g for U(VI) and 126.1 mg/g for I-. X-ray photoelectron spectroscopy (XPS) results reveal that the U(VI) adsorption occurs via coordination bonding with Mn-O, -NH- , and =N- groups in the nanocomposite, whereas I- adsorption proceeds mainly through I anionic species exchange with Cl- and interactions with π-bonds in PANI, as well as the electrostatic attraction onto Mn3O4. Considering the excellent performance and multiple active sites, the Mn3O4@PANI nanocomposite is promising to remove practical radioactive U(VI) and I-.
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Affiliation(s)
- Wei Yin
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tian-Lei Zhao
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Han Wang
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Qi-Zhi Yao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Gen-Tao Zhou
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Center for Excellence in Comparative Planetology, Hefei, 230026, China.
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14
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Sulfonated polyaniline interlayer with controllable doping conditions for high-performance nanofiltration. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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15
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Goswami S, Nandy S, Fortunato E, Martins R. Polyaniline and its composites engineering: A class of multifunctional smart energy materials. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2022.123679] [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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16
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Masterbatch of Chitosan Nanowhiskers for Preparation of Nylon 6,10 Nanocomposite by Melt Blending. Polymers (Basel) 2022; 14:polym14245488. [PMID: 36559855 PMCID: PMC9783613 DOI: 10.3390/polym14245488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Composite materials have been extensively studied to optimize properties such as lightness and strength, which are the advantages of plastics. We prepared a highly concentrated (30 wt %) nylon/chitosan nanowhisker (CSW) masterbatch by blending nylon 6,10 and CSW by solvent casting to achieve high dispersion efficiency while considering an industrial setting. Subsequently, 0.3 wt % nylon/CSW nanocomposites were prepared with a large quantity of nylon 6,10 via melt blending. During preparation, the materials were stirred in the presence of formic acid at different times to investigate the effect of stirring time on the structure of the CSW and the physical properties of the composite. The formation of nanocomposites by the interactions between nylon and CSW was confirmed by observing the change in hydrogen bonding using FT-IR spectroscopy and the rise in melting temperature and melting enthalpy through differential scanning calorimetry. The results demonstrated increases in complex viscosity and shear thinning. The rheological properties of the composites changed due to interactions between CSW and nylon, as indicated by the loss factor. The mechanical properties produced by the nanocomposite stirred for 1.5 h were superior, suggesting that formic acid caused minimal structural damage, thus verifying the suitability of the stirring condition.
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17
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Acid Red 88 Dye doped Polyaniline framed by soft template method: A potential candidate for Dye-sensitized solar cells. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Feng D, Zhang R, Zhang M, Fang A, Shi F. Synthesis of Eco-Friendly Silver Nanoparticles Using Glycyrrhizin and Evaluation of Their Antibacterial Ability. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2636. [PMID: 35957066 PMCID: PMC9370730 DOI: 10.3390/nano12152636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/22/2022]
Abstract
In the present study, the biosynthesis of silver nanoparticles (AgNPs) and their antibacterial activity against gram-positive and gram-negative bacteria were investigated. Glycyrrhizin (GL) was used as a reducing agent and stabilizer to rapidly prepare the AgNPs. The distinctive absorption peak at 419 nm confirmed the formation of GL-reduced AgNPs. The TEM and particle size analysis shows that the prepared GL-reduced AgNPs were mostly circular with good dispersion and a relatively uniform particle size of 35 nm on average. Fourier transform infrared spectroscopy analysis was performed to identify the possible biomolecules in the capping and active stabilization of the GL-reduced AgNPs. The antibacterial activity of the GL-reduced AgNPs was analyzed with the Oxford cup diffusion method and filter paper diffusion method. The experimental results show that these properties endowed the GL-reduced AgNPs with high antibacterial activity against Escherichia coli and Staphylococcus aureus and lay a foundation for the use of colloidal silver in antibacterial applications. The GL-reduced AgNPs also had stronger antibacterial activity than sodium citrate-reduced AgNPs, which indicates the advantages of GL-reduced AgNPs compared with sodium citrate-reduced AgNPs in inducing bacteriostasis. The cytotoxicity of GL-reduced AgNPs on human kidney epithelial 293A (HEK293) cells was evaluated via the MTT assay. The results show that GL-reduced AgNPs had lower toxicity to HEK293 cells than sodium citrate-AgNPs, which indicates that the as-prepared GL-reduced AgNPs are environmentally friendly.
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Affiliation(s)
| | | | | | | | - Feng Shi
- College of Life Science, Shihezi University, Shihezi 832003, China; (D.F.); (R.Z.); (M.Z.); (A.F.)
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19
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Jing Tao, Wang T, Men C, Li G. Effect of Aniline Oligomers in Aniline Chemical Oxidative Polymerization on Polyaniline Supramolecular Structures. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Guo Y, Ji C, Ye Y, Chen Y, Yang Z, Xue S, Niu QJ. High performance nanofiltration membrane using self-doping sulfonated polyaniline. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120441] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Scotland KM, Strong OK, Parnis JM, Vreugdenhil AJ. DFT modeling of polyaniline: a computational investigation into the structure and band gap of polyaniline. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The band gaps of three forms of polyaniline (PANI) are calculated using the DFT method with the B3LYP functional and SV(P) basis set. This marks the first time that the band gap for this polymer has been calculated using this DFT method. The calculations include an investigation of the effect of varying the benzoid–quinoid structural units, the effect of increasing oligomer length, and the inclusion of Michael’s addition structures, which could be residual in the polymer depending on the chosen synthetic method. All results were compared with the experimentally determined band gap of 1.5 eV as typically reported in the literature. A commonly used structural motif of alternating benzoid–quinoid units and a ratio of 0.5:0.5 benzoid–quinoid resulted in a computed band gap of 1.9 eV. Inclusion of one extra quinoid unit gave rise to a band gap of 1.3 eV. Incorporation of a Michael’s addition structure was found to dominate the band gap calculation, yielding a localized LUMO and a band gap of 1.3 eV that was insensitive to the polymer chain length and composition.
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Affiliation(s)
- Kevin M. Scotland
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Oliver K.L. Strong
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - J. Mark Parnis
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Andrew J. Vreugdenhil
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
- Department of Chemistry, Materials Science Program, Trent University, Materials Science Program, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
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22
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Sakata T, Saitow KI. 4D Microspectroscopy Explores Orientation and Aggregations in π-Conjugated Polymer Films Prepared by Brush Printing. J Phys Chem Lett 2022; 13:653-660. [PMID: 35023754 DOI: 10.1021/acs.jpclett.1c03283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The orientation of polymers improves their mechanical, electrical, and optical properties, but aggregates alter these properties. Unfortunately, there is no definitive way to control aggregates and quantify orientations by distinguishing between polymer chains and aggregates. Herein, we show 4D microspectroscopy to examine brush-printed oriented films of π-conjugated polymers. Three-dimensional (x-y-z) and 1D (photon energy) components based on polarized-fluorescence spectra and film thickness at identical positions were measured. Stochastic analysis of 4D data for a brush-printed OLED film (30 × 30 μm2, 900 pixels) distinguished orientations of polymer chains and their aggregates with a 1 μm x-y resolution and a z-range of 20-1800 nm. Polymer chains in thin regions (t < 50 nm) were oriented parallel to the brush-printing direction, whereas aggregates were oriented perpendicularly in thicker regions (t > 1000 nm). This difference was attributed to shear stress, uneven thickness, and capillary forces. The generality of the 4D method was also examined using conventional drop casting.
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Affiliation(s)
- Toshiki Sakata
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Ken-Ichi Saitow
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- Natural Science Center for Basic Research and Development (N-BARD), Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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23
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Martins AJ, Cerqueira F, Vicente AA, Cunha RL, Pastrana LM, Cerqueira MA. Gelation Behavior and Stability of Multicomponent Sterol-Based Oleogels. Gels 2022; 8:37. [PMID: 35049574 PMCID: PMC8774356 DOI: 10.3390/gels8010037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/29/2021] [Accepted: 01/01/2022] [Indexed: 02/06/2023] Open
Abstract
Novel fat mimetic materials, such as oleogels, are advancing the personalization of healthier food products and can be developed from low molecular weight compounds such as γ-oryzanol and β-sitosterol. Following molecular assembly, the formation of a tubular system ensues, which seems to be influenced by elements such as the oleogelators' concentration and ratio, cooling rates, and storage periods. Sterol-based oleogels were formulated under distinct environmental conditions, and a comprehensive study aimed to assess the effects of the mentioned factors on oleogel formation and stability, through visual observation and by using techniques such as small-angle X-ray scattering, X-ray diffraction, confocal Raman spectroscopy, rheology, and polarized microscopy. The long, rod-like conformations, identified by small-angle X-ray scattering, showed that different cooling rates influence oleogels' texture. Raman spectra showed that the stabilization time is associated with the interfibrillar aggregation, which occurred differently for 8 and 10 wt%, with a proven relationship between ferulic acid and the tubular formation. This report gives fundamental insight into the critical point of gelation, referring to the time scale of the molecular stabilization. Our results verify that understanding the structuring mechanisms of oleogelation is decisive for the processing and manufacturing of novel foods which integrate oleogels in their structure.
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Affiliation(s)
- Artur J. Martins
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (F.C.); (L.M.P.); (M.A.C.)
- Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal;
| | - Fátima Cerqueira
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (F.C.); (L.M.P.); (M.A.C.)
- Centre of Physics, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - António A. Vicente
- Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal;
| | - Rosiane L. Cunha
- Department of Food Engineering, Faculty of Food Engineering, University of Campinas, UNICAMP, CEP, Campinas 13083-862, Brazil;
| | - Lorenzo M. Pastrana
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (F.C.); (L.M.P.); (M.A.C.)
| | - Miguel A. Cerqueira
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (F.C.); (L.M.P.); (M.A.C.)
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24
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Forouharshad M, Ajalloueian F. Tunable self‐assembled
stereocomplexed‐
polylactic acid nanoparticles as a drug carrier. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mahdi Forouharshad
- Nano‐Bioscience Research Group DTU‐Food, Technical University of Denmark Lyngby Denmark
| | - Fatemeh Ajalloueian
- Department of Health Technology Technical University of Denmark Lyngby Denmark
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25
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BSA stabilized copper nanoclusters as a highly sensitive and selective probe for fluorescence sensing of Fe3+ ions. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139226] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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AKMAN PK, BOZKURT F, TORNUK F. Fabrication and characterization of curcumin loaded ovalbumin nanocarriers and bioactive properties. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.38421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - Fatih BOZKURT
- Yildiz Technical University, Turkey; Mus Alparslan University, Turkey
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27
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Regulation of nanostructured polyaniline synthesis and its properties through organic solvent in interfacial polymerization. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Bianchi CL, Djellabi R, Della Pina C, Falletta E. Doped-polyaniline based sorbents for the simultaneous removal of heavy metals and dyes from water: Unravelling the role of synthesis method and doping agent. CHEMOSPHERE 2022; 286:131941. [PMID: 34426283 DOI: 10.1016/j.chemosphere.2021.131941] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 05/07/2023]
Abstract
Recently, the engineering of alternative adsorbents with better functional and sorbing ability towards the purification of wastewaters has received much attention from the scientific community. Currently polymers, in particular, are regarded as attractive soft materials in the field of environmental remediation due to their several unique properties. In this regard, the synthesis method is key point to fabricate polymer-based adsorbent with targeted characteristics. In the present work, four polyaniline (PANIs) samples were synthesized by two alternative chemical approaches, a traditional one and an eco-friendly one, and two different dopants were used, HCl and H2SO4, respectively. All PANIs were characterized for their thermal, optical, morphological, and structural properties and their capability to remove simultaneously dyes and heavy metals from water have been investigated. It was deduced that the sorption ability is dependent on the as-synthesized PANI using different procedures and dopants. All the PANIs from traditional method showed high levels of pollutants removal (from 89 to 97%). Even though the materials obtained from the green way are overall less active, H2SO4-doped corresponding polymer showed high sorption capability (75-97%). Finally, the most performing PANIs were selected for recycling tests exhibiting high sorption efficiency retention up to four runs without any regeneration treatment. Most important, the cycling tests were stopped well before the sample sorption limit could be reached.
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Affiliation(s)
- Claudia L Bianchi
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133, Milan, Italy; INSTM, Via Giusti 9, 50121, Florence, Italy
| | - Ridha Djellabi
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133, Milan, Italy
| | - Cristina Della Pina
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133, Milan, Italy; INSTM, Via Giusti 9, 50121, Florence, Italy
| | - Ermelinda Falletta
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133, Milan, Italy; INSTM, Via Giusti 9, 50121, Florence, Italy; ISTM-CNR, Via Golgi 19, 20133, Milano, Italy.
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29
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Khan MA, Khan S, Kazi M, Alshehri SM, Shahid M, Khan SU, Hussain Z, Sohail M, Shafique M, Hamid HA, Kamran M, Elhissi A, Wasim M, Thu HE. Norfloxacin Loaded Lipid Polymer Hybrid Nanoparticles for Oral Administration: Fabrication, Characterization, In Silico Modelling and Toxicity Evaluation. Pharmaceutics 2021; 13:pharmaceutics13101632. [PMID: 34683925 PMCID: PMC8540086 DOI: 10.3390/pharmaceutics13101632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/18/2021] [Accepted: 09/26/2021] [Indexed: 12/04/2022] Open
Abstract
Norfloxacin (NOR), widely employed as an anti-bacterial drug, has poor oral bioavailability. Nano based drug delivery systems are widely used to overcome the existing oral bioavailability challenges. Lipid–Polymer Hybrid Nanoparticles (LPHNs) exhibit the distinctive advantages of both polymeric and liposomes nanoparticles, while excluding some of their disadvantages. In the current study, NOR loaded LPHNs were prepared, and were solid amorphous in nature, followed by in vitro and in vivo evaluation. The optimized process conditions resulted in LPHNs with the acceptable particle size 121.27 nm, Polydispersity Index (PDI) of 0.214 and zeta potential of −32 mv. The addition of a helper lipid, oleic acid, and polymers, ethyl cellulose, substantially increased the encapsulation efficiency (EE%) (65% to 97%). In vitro study showed a sustained drug release profile (75% within 12 h) for NOR LPHNs. The optimized NOR LPHNs showed a significant increase (p < 0.05) in bioavailability compared to the commercial product. From the acute toxicity study, the LD50 value was found to be greater than 1600 mg/kg. The molecular modelling studies substantiated the experimental results with the best combination of polymers and surfactants that produced highly stable LPHNs. Therefore, LPHNs proved to be a promising system for the delivery of NOR, as well as for other antibiotics and hydrophobic drugs.
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Affiliation(s)
- Muhammad Asghar Khan
- Department of Pharmacy, University of Malakand, Chakdara 18800, Pakistan; (M.A.K.); (H.A.H.); (M.K.)
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Chakdara 18800, Pakistan; (M.A.K.); (H.A.H.); (M.K.)
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of Kawazulu Natal, Durban X54001, South Africa
- Correspondence: ; Tel.: +0092-345-9492-869
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.); (S.M.A.)
| | - Sultan M. Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.); (S.M.A.)
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan;
| | - Shafi Ullah Khan
- Department of Pharmacy, Abasyn University Peshawar, Peshawar 25000, Pakistan;
| | - Zahid Hussain
- Department of Pharmaceutics & Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Research Institute for Medical and Health Sciences (SIMHR), University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University Abbottabad Campus, Abbottabad 45550, Pakistan; (M.S.); (M.W.)
| | - Muhammad Shafique
- Department of Pharmaceutical Sciences, College of Pharmacy-Boys, Al-Dawadmi Campus, Shaqra University, Shaqra, Riyadh 11451, Saudi Arabia;
| | - Hajra Afeera Hamid
- Department of Pharmacy, University of Malakand, Chakdara 18800, Pakistan; (M.A.K.); (H.A.H.); (M.K.)
| | - Mahwish Kamran
- Department of Pharmacy, University of Malakand, Chakdara 18800, Pakistan; (M.A.K.); (H.A.H.); (M.K.)
| | - Abdelbary Elhissi
- College of Pharmacy, QU Health and Office of VP for Research and Graduate Studies, Qatar University, Doha 2713, Qatar;
| | - Muhammad Wasim
- Department of Pharmacy, COMSATS University Abbottabad Campus, Abbottabad 45550, Pakistan; (M.S.); (M.W.)
| | - Hnin Ei Thu
- Research and Innovation Department, Lincolon University College, Petaling Jaya 47301, Malaysia;
- Innoscience Research Institute, Subang Jaya 47650, Malaysia
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30
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Evaluation of conductivity of nanostructured polyaniline/cellulose nanocrystals (PANI/CNC) obtained via in situ polymerization. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122372] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Lei Q, Zhao J, He F, Zhao X, Yin J. Preparation of Poly(Ionic Liquid) Microbeads via Cooling-Assisted Phase Separation Method. Macromol Rapid Commun 2021; 42:e2100275. [PMID: 34288210 DOI: 10.1002/marc.202100275] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/28/2021] [Indexed: 11/10/2022]
Abstract
A simple and large-scale non-chemical preparation of uniform poly(ionic liquid) (PIL) microbeads via a cooling-assisted phase separation (CAPS) method is reported. For this method, PIL bulk is dissolved to form a saturated solution in a mixed solvent composed of good solvent and non-solvent at a relatively high temperature. Then, the uniform PIL microbeads are prepared by cooling the solution to room temperature or a lower temperature in the absence of stabilizer. The size of microbeads can be controlled by adjusting the preparation parameters, including PIL concentration, cooling rate, and agitation state. The scale of preparation can be up to 10 g, and the yield of PIL microbeads is more than 70% or 88% when the solution is cooled to room temperature or 0 °C, respectively. The formation mechanism of PIL microbeads is discussed by tracing the nucleation and growth process by the transmittance of light of the solution during cooling. The application of this CAPS method to other polymer microbeads preparation is finally discussed by choosing different good solvent and non-solvent.
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Affiliation(s)
- Qi Lei
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, 518057, China.,Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Jia Zhao
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, 518057, China.,Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Fang He
- Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Xiaopeng Zhao
- Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Jianbo Yin
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, 518057, China.,Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
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Al-Zohbi F, Ghamouss F, Schmaltz B, Abarbri M, Zaghrioui M, Tran-Van F. Enhanced Storage Performance of PANI and PANI/Graphene Composites Synthesized in Protic Ionic Liquids. MATERIALS 2021; 14:ma14154275. [PMID: 34361468 PMCID: PMC8347535 DOI: 10.3390/ma14154275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 11/16/2022]
Abstract
Polyaniline (PANI) was synthesized using oxidative polymerization in a mixture of water with pyrrolidinium hydrogen sulfate [Pyrr][HSO4], which is a protic ionic liquid PIL. The obtained PANI (PANI/PIL) was compared with conventional PANI (PANI/HCl and PANI/HSO4) in terms of their morphological, structural, and storage properties. The results demonstrate that the addition of this PIL to a polymerization medium leads to a fiber-like morphology, instead of a spherical-like morphology, of PANI/HSO4 or an agglomerated morphology of PANI/HCl. In addition, PAN/PIL exhibits an improvement of the charge transfer kinetic and storage capability in H2SO4 1 mol·L-1, compared to PANI/HCl. The combination of PANI/PIL and graphene oxide (GO), on the other hand, was investigated by optimizing the PANI/GO weight ratio to achieve the nanocomposite material with the best performance. Our results indicate that the PANI/PIL/GO containing 16 wt% of GO material exhibits a high performance and stability (223 F·g-1 at 10 A·g-1 in H2SO4 1 mol·L-1, 4.9 Wh·Kg-1, and 3700 W·Kg-1 @ 10 A·g-1). The obtained results highlight the beneficial role of PIL in building PANI and PANI/GO nanocomposites with excellent performances for supercapacitor applications.
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Affiliation(s)
- Fatima Al-Zohbi
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes Pour l’Energie (EA 6299), University of Tours, Parc de Grandmont, 37200 Tours, France; (F.A.-Z.); (B.S.); (M.A.)
| | - Fouad Ghamouss
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes Pour l’Energie (EA 6299), University of Tours, Parc de Grandmont, 37200 Tours, France; (F.A.-Z.); (B.S.); (M.A.)
- Correspondence: (F.G.); (F.T.-V.); Tel.: +33-02-47366923 (F.G. & F.T.-V.)
| | - Bruno Schmaltz
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes Pour l’Energie (EA 6299), University of Tours, Parc de Grandmont, 37200 Tours, France; (F.A.-Z.); (B.S.); (M.A.)
| | - Mohamed Abarbri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes Pour l’Energie (EA 6299), University of Tours, Parc de Grandmont, 37200 Tours, France; (F.A.-Z.); (B.S.); (M.A.)
| | - Mustapha Zaghrioui
- CNRS, CEA, INSA CVL, GREMAN UMR 7347, University of Tours, IUT de Blois 15 rue de la Chocolaterie, CS 32903, 41029 Blois, France;
| | - François Tran-Van
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes Pour l’Energie (EA 6299), University of Tours, Parc de Grandmont, 37200 Tours, France; (F.A.-Z.); (B.S.); (M.A.)
- Correspondence: (F.G.); (F.T.-V.); Tel.: +33-02-47366923 (F.G. & F.T.-V.)
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Noreen S, Pervaiz F, Ashames A, Buabeid M, Fahelelbom K, Shoukat H, Maqbool I, Murtaza G. Optimization of Novel Naproxen-Loaded Chitosan/Carrageenan Nanocarrier-Based Gel for Topical Delivery: Ex Vivo, Histopathological, and In Vivo Evaluation. Pharmaceuticals (Basel) 2021; 14:557. [PMID: 34207951 PMCID: PMC8230576 DOI: 10.3390/ph14060557] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Naproxen (NAP) is commonly used for pain, inflammation, and stiffness associated with arthritis. However, systemic administration is linked with several gastrointestinal tract (GIT) side effects. The present work aims to prepare and evaluate NAP nanoparticulate shells of chitosan (CS) and carrageenan (CRG) loaded into a Carbopol 940 (Ca-940) gel system with unique features of sustained drug delivery as well as improved permeation through a topical route. Moreover, this study aims to evaluate its ex vivo, histopathological, and in vivo anti-inflammatory activity in albino Wistar rats. The percentage of ex vivo drug permeation patterns in the optimized formulation (No) was higher (88.66%) than the control gel (36.195%). Oral toxicity studies of developed nanoparticles in albino rabbits showed that the NAP-loaded CS/CRG are non-toxic and, upon histopathological evaluation, no sign of incompatibility was observed compared to the control group. A In Vivo study showed that the optimized gel formulation (No) was more effective than the control gel (Nc) in treating arthritis-associated inflammation. The sustained permeation and the absence of skin irritation make this novel NAP nanoparticle-loaded gel based on CS/CRG a suitable drug delivery system for topical application and has the potential for improved patient compliance and reduced GIT-related side effects in arthritis.
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Affiliation(s)
- Sobia Noreen
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (S.N.); (H.S.); (I.M.)
| | - Fahad Pervaiz
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (S.N.); (H.S.); (I.M.)
| | - Akram Ashames
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates;
- Medical and Bio-Allied Health Sciences Research Centre, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Manal Buabeid
- Medical and Bio-Allied Health Sciences Research Centre, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Khairi Fahelelbom
- Department of Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates;
| | - Hina Shoukat
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (S.N.); (H.S.); (I.M.)
| | - Irsah Maqbool
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (S.N.); (H.S.); (I.M.)
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
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34
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Wang L, Su M. The Agglomeration of Niacin Crystals in the Cooling Crystallization Process. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202000209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lei Wang
- School of Chemical Engineering and Technology Hebei University of Technology 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Min Su
- School of Chemical Engineering and Technology Hebei University of Technology 8 Guangrong Road, Hongqiao District Tianjin 300130 China
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35
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Zarbin AJG. Liquid-liquid interfaces: a unique and advantageous environment to prepare and process thin films of complex materials. MATERIALS HORIZONS 2021; 8:1409-1432. [PMID: 34846449 DOI: 10.1039/d0mh01676d] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Thin film technology is pervasive for many fields with high impact in our daily lives, which makes processing materials such as thin films a very important subject in materials science and technology. However, several paramount materials cannot be prepared as thin films through the well-known and consolidated deposition routes, which strongly limits their applicability. This is particularly noticeable for multi-component and complex nanocomposites, which present unique properties due to the synergic effect between the components, but have several limitations to be obtained as thin films, mainly if homogeneity and transparence are required. This review highlights the main advances of a novel approach to both process and synthesize different classes of materials as thin films, based on liquid/liquid interfaces. The so-called liquid/liquid interfacial route (LLIR) allows the deposition of thin films of single- or multi-component materials, easily transferable over any kind of substrate (plastics and flexible substrates included) with precise control of the thickness, homogeneity and transparence. More interesting, it allows the in situ synthesis of multi-component materials directly as thin films stabilized at the liquid/liquid interface, in which problems related to both the synthesis and processing are solved together in a single step. This review presents the basis of the LLIR and several examples of thin films obtained from different classes of materials, such as carbon nanostructures, metal and oxide nanoparticles, two-dimensional materials, organic and organometallic frameworks, and polymer-based nanocomposites, among others. Moreover, specific applications of those films in different technological fields are shown, taking advantage of the specific properties emerging from the unique preparation route.
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Affiliation(s)
- Aldo J G Zarbin
- Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP 81531-980, Curitiba, PR, Brazil.
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36
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Suendo V, Lau Y, Hidayat F, Reza M, Qadafi A, Rochliadi A. Effect of face-to-face and side-to-side interchain interactions on the electron transport in emeraldine salt polyaniline. Phys Chem Chem Phys 2021; 23:7190-7199. [PMID: 33734245 DOI: 10.1039/d0cp06194h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyaniline (PANI) is a conductive polymer that has been studied intensively due to its high conductivity, ease of synthesis, fascinating doping mechanism, and a broad spectrum of applications. Polyaniline doped HCl was synthesized by a common direct-oxidation method of aniline using ammonium persulfate as the oxidant in HCl solution at various temperatures. This study focused on conductivity alteration of PANI-ES (emeraldine salt) due to the interchain interaction observed at different reaction temperatures from room temperature down to -15 °C. The molecular structure of PANI-ES was determined by FTIR and Raman spectroscopy. At low reaction temperature, the electronic transport properties improve significantly as reflected by its conductivity. X-ray diffraction (XRD) analysis shows that the value d{(110)} and β play an important role in electron transport through face-to-face and side-to-side interactions, respectively. Scanning electron microscopy (SEM) analysis shows that the morphology of the synthesized PANI-ES consists of granules that are interconnected by nanofibers. Here, the correlation between electronic transport properties, structure, and morphology induced by reaction temperature was analyzed and discussed in detail. Moreover, PANI ES synthesized at 0 °C was applied as an electrocatalytic active layer in the DSSC's counter-electrode with a promising result.
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Affiliation(s)
- Veinardi Suendo
- Inorganic and Physical Chemistry Research Division, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia.
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37
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Wang W, Ma Y, Zhuang Z, Zhou S, Ma M, Wu Q, Bai R, Li T. Synthesis of walnut‐like polyaniline by using polyvinyl alcohol micellar template with excellent film transmission. J Appl Polym Sci 2021. [DOI: 10.1002/app.50701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wenjiao Wang
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
| | - Yong Ma
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
| | - Zhao Zhuang
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
| | - Shujie Zhou
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
| | - Mingliang Ma
- School of Civil Engineering Qingdao University of Technology Qingdao P. R. China
| | - Qi Wu
- Sino‐German Institute of Engineering Qingdao University of Science and Technology Qingdao P. R. China
| | - Ruiqin Bai
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
| | - Tingxi Li
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao P. R. China
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38
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Rao BR, Kumar R, Haque S, Kumar JM, Rao TN, Kothapalli RVSN, Patra CR. Ag 2[Fe(CN) 5NO]-Fabricated Hydrophobic Cotton as a Potential Wound Healing Dressing: An In Vivo Approach. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10689-10704. [PMID: 33621045 DOI: 10.1021/acsami.0c19904] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There have been reports of different types of wound dressings for various functions and purposes. Cotton being one of the most widely used wound dressing material due to its non-toxic, biodegradable, and other properties is used for fabrication as well as in the form of scaffolds for faster and effective wound closure. Our research team has already demonstrated the role of silver nitroprusside nanoparticles (SNPNPs) for wound healing and antibacterial activity. In the current study, we have developed cotton fabric impregnated with SNPNPs (SNPCFs) which remain photo inert and displayed long-term antimicrobial activity due to the surface modification with the silver nitroprusside complex. These SNPCFs were characterized by various analytical techniques (XRD, FTIR, UV spectroscopy, TGA, TEM, FESEM, EDAX, ICP-OES). The fabricated cotton dressings with nanoparticles showed an improved water contact angle (113-130°) than that of bare cotton gauze (60°) and exhibited more antibacterial property in case of both Gram-negative bacteria (Klebsiella aerogenes and Escherichia coli) and Gram-positive bacteria (Pseudomonas aeruginosa and Bacillus subtilis) even after several washings. The biocompatible nature of SNPCFs was assessed by in vivo chorioallantoic membrane assay that showed no obstruction in the formation of blood vessels. The SNPCFs exhibited better wound healing activity compared to the bare cotton and AgCFs as observed in the C57BL6/J mouse. The histopathological investigation reveals increase in re-epithelialization and deposition of connective tissue. The macrophage (M2) counts in SNPCF-treated skin tissues were supportive of more wound healing activity than mice treated with cotton fabric impregnated with chemically synthesized silver nanoparticles. Based on biodistribution analysis using ICP-OES, the data illustrated that a significant amount of silver is absorbed in the skin tissues of mice as compared to the blood and kidney. Furthermore, the absence of silver from the vital organs (heart, liver, and kidney) corroborates our hypothesis that the SNPCFs can act excellently in treating wounds when topically applied over skin. Thereafter, all these results highlight a strong possibility that SNPCFs exemplify the potential as a new antimicrobial and wound healing agent in future times.
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Affiliation(s)
- Bonda Rama Rao
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Rajnish Kumar
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Shagufta Haque
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Jerald Mahesh Kumar
- Animal House, CSIR-Centre for Cellular and Molecular Biology (CCMB), Hyderabad, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - T Nageswara Rao
- Department of Analytical, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Raju V S N Kothapalli
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Chitta Ranjan Patra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
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39
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Elsonbaty A, Elshaer A, Harb M, Soliman M, Ebrahim S, Eltahan A. Novel ZIF67/Mn/MWCNTs decorated with layer double hydroxide supercapacitor electrodes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137577] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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40
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Ayadi C, Anene A, Kalfat R, Chevalier Y, Hbaieb S. Molecular Imprints Frozen by Strong Intermolecular Interactions in Place of Cross-Linking. Chemistry 2021; 27:2175-2183. [PMID: 33146917 DOI: 10.1002/chem.202004580] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Indexed: 11/10/2022]
Abstract
A new way to freeze molecular imprints in a polymer material is reported. So far, molecular imprinted polymers (MIP) involve copolymerization of a functional monomer and large amounts of cross-linking agent, which keeps the template shape memory in rigid molecular imprints. MIP materials are prepared herein without cross-linking agent. Stiff chains of polyaniline grafted on a solid support as a brush-like material achieve the necessary rigidity. Differential adsorption to imprinted and non-imprinted materials provides evidence of molecular imprints. A correct adsorption isotherm for mobile adsorbed layers (Volmer isotherm) is introduced instead of the popular but inadequate Langmuir isotherm. Non-selective adsorption is entropic, whereas adsorption to molecular imprints has an enthalpic contribution coming from specific interactions. Fast adsorption kinetics are a definite benefit with regards to applications such as chromatographic separations and chemical sensors.
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Affiliation(s)
- Cherifa Ayadi
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotechpole Sidi-Thabet, 2020, Ariana, Tunisia.,Laboratoire d'Automatique, de Génie des Procédés et de Génie, Pharmaceutique (LAGEPP), Université de Lyon 1, UMR 5007 CNRS, 43 bd 11 Novembre, 69622, Villeurbanne, France.,Laboratoire de Recherche: Caractérisations, Applications et Modélisation, de Matériaux,Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire El Manar, Tunisia
| | - Amira Anene
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotechpole Sidi-Thabet, 2020, Ariana, Tunisia
| | - Rafik Kalfat
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotechpole Sidi-Thabet, 2020, Ariana, Tunisia
| | - Yves Chevalier
- Laboratoire d'Automatique, de Génie des Procédés et de Génie, Pharmaceutique (LAGEPP), Université de Lyon 1, UMR 5007 CNRS, 43 bd 11 Novembre, 69622, Villeurbanne, France
| | - Souhaira Hbaieb
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotechpole Sidi-Thabet, 2020, Ariana, Tunisia.,Laboratoire de Recherche: Caractérisations, Applications et Modélisation, de Matériaux,Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire El Manar, Tunisia
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41
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Konwar G, Deka J, Raidongia K, Mahanta D. Fabrication of polyaniline–graphene oxide hybrid nanocomposites by green interfacial polymerization for all-solid-state supercapacitors and enzymatic glucose sensors. NEW J CHEM 2021. [DOI: 10.1039/d1nj01741a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PANI-GO hybrid nanocomposites by the green interfacial polymerization method for electrochemical capacitors and glucose sensors.
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Affiliation(s)
- Gayatri Konwar
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Jumi Deka
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Kalyan Raidongia
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Debajyoti Mahanta
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
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42
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Shaaban AFF, Metwally AM, Azab MM, Mahmoud AA, Ali HM. Synthesis, characterization, morphology and adsorption performance towards Cu+2 ions of nano-sized homopolymers of o-aminophenol poly(o-AP). JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02322-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Cieśla J, Chylińska M, Zdunek A, Szymańska-Chargot M. Effect of different conditions of synthesis on properties of silver nanoparticles stabilized by nanocellulose from carrot pomace. Carbohydr Polym 2020; 245:116513. [PMID: 32718623 DOI: 10.1016/j.carbpol.2020.116513] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 01/22/2023]
Abstract
The silver nanoparticles (AgNPs) can exhibit different optical properties depending on their size and shape as a result of synthesis method and the stabilizer used. In this research the synthesis of AgNPs in the presence of nanocellulose obtained from carrot pomace was investigated. The influence of silver nitrate concentration, temperature and mechanical agitation on size and shape of AgNPs was studied. The mixing of reagents during synthesis, regardless temperature, led to obtain AgNPs of various sizes and shapes. It was confirmed by different colors of samples with absorbance maximum from 334 to 779 nm, the transmission electron microscopy images and dynamic light scattering results. In unmixed samples only spherical nanoparticles with absorbance maximum at 408 nm were observed. Obtained results have demonstrated that mechanical agitation and an appropriate silver nitrate concentration combined with stabilizing effect of nanocellulose allow to obtain AgNPs in different shapes and sizes.
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Affiliation(s)
- Jolanta Cieśla
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
| | - Monika Chylińska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
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Fatya AI, Reza M, Sunarya RR, Suendo V. Synthesis of polyaniline/electrochemically exfoliated graphene composite as counter-electrode in dye-sensitized solar cell. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1738479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Alvian Ikhsanul Fatya
- Department of Chemistry, Division of Inorganic and Physical Chemistry, Institut Teknologi Bandung, Bandung, Indonesia
| | - Muhammad Reza
- Department of Chemistry, Division of Inorganic and Physical Chemistry, Institut Teknologi Bandung, Bandung, Indonesia
| | - Risa Rahmawati Sunarya
- Department of Chemistry, Division of Inorganic and Physical Chemistry, Institut Teknologi Bandung, Bandung, Indonesia
- Department of Chemistry Education, Faculty of Tarbiya and Teacher Training, UIN Sunan Gunung Djati, Bandung, Indonesia
| | - Veinardi Suendo
- Department of Chemistry, Division of Inorganic and Physical Chemistry, Institut Teknologi Bandung, Bandung, Indonesia
- Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Bandung, Indonesia
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45
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Wang L, Zhang YS, Jiang HR, Wang H. Carbonyl-Incorporated Aromatic Hyper-Cross-Linked Polymers with Microporous Structure and Their Functional Materials for CO 2 Adsorption. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02165] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ling Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Ying-shuang Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Hong-ru Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Hui Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
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46
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Konwar G, Sarma SC, Mahanta D, Peter SC. Polyaniline Hybrid Nanofibers via Green Interfacial Polymerization for All-Solid-State Symmetric Supercapacitors. ACS OMEGA 2020; 5:14494-14501. [PMID: 32596587 PMCID: PMC7315605 DOI: 10.1021/acsomega.0c01158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/03/2020] [Indexed: 05/22/2023]
Abstract
In this study, we report an enormously simple green approach for the synthesis of polyaniline hybrid (PANI-SO) nanofibers in emeraldine salt form. We have carried out the synthesis via an interfacial polymerization method using vegetable oil as an organic phase instead of the commonly used solvents like CHCl3, CCl4, etc. Characterization techniques such as Fourier transform infrared (FTIR), UV-visible, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) have been used for studying the synthesized polyaniline hybrid nanofibers. An interesting observation is the crystallization of small organic molecules in the PANI matrix. PANI-SO shows a pseudocapacitance behavior with a capacitance value of 302 F g-1 at a current density of 1 A g-1. In addition, the material shows an energy density of 26.8 W h kg-1 and a maximum power density of 402.6 W kg-1. Furthermore, the PANI-SO electrode maintains about 84% of the initial capacitance after 1000 cycles. Similarly, the PANI-SO symmetric solid-state supercapacitor shows an areal capacitance of 118.7 mF cm-2 and retains a stability of 80% even after 1000 cycles. Thus, the PANI-SO electrode shows a good cyclic performance, which implies the structural stability of PANI-SO nanofibers. The electrochemical properties of PANI-SO are compared with those of PANI nanofibers synthesized by taking CHCl3 as the organic phase and keeping all other parameters identical. PANI-SO is observed to be a superior material compared to the latter one. All electrochemical analyses show that the PANI synthesized using cooking soyabean oil (PANI-SO) is an effective supercapacitor material.
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Affiliation(s)
- Gayatri Konwar
- Department
of Chemistry, Gauhati University, Guwahati 781014, Assam, India
| | - Saurav Ch. Sarma
- New
Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Bangalore 560064, India
- School
of Advanced Materials, Jawaharlal Nehru
Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Debajyoti Mahanta
- Department
of Chemistry, Gauhati University, Guwahati 781014, Assam, India
| | - Sebastian C. Peter
- New
Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Bangalore 560064, India
- School
of Advanced Materials, Jawaharlal Nehru
Centre for Advanced Scientific Research, Bangalore 560064, India
- . Tel: 080-22082998. Fax: 080-22082627
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47
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Yetisgin AA, Cetinel S, Zuvin M, Kosar A, Kutlu O. Therapeutic Nanoparticles and Their Targeted Delivery Applications. Molecules 2020; 25:E2193. [PMID: 32397080 PMCID: PMC7248934 DOI: 10.3390/molecules25092193] [Citation(s) in RCA: 327] [Impact Index Per Article: 81.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/24/2020] [Accepted: 04/26/2020] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology offers many advantages in various fields of science. In this regard, nanoparticles are the essential building blocks of nanotechnology. Recent advances in nanotechnology have proven that nanoparticles acquire a great potential in medical applications. Formation of stable interactions with ligands, variability in size and shape, high carrier capacity, and convenience of binding of both hydrophilic and hydrophobic substances make nanoparticles favorable platforms for the target-specific and controlled delivery of micro- and macromolecules in disease therapy. Nanoparticles combined with the therapeutic agents overcome problems associated with conventional therapy; however, some issues like side effects and toxicity are still debated and should be well concerned before their utilization in biological systems. It is therefore important to understand the specific properties of therapeutic nanoparticles and their delivery strategies. Here, we provide an overview on the unique features of nanoparticles in the biological systems. We emphasize on the type of clinically used nanoparticles and their specificity for therapeutic applications, as well as on their current delivery strategies for specific diseases such as cancer, infectious, autoimmune, cardiovascular, neurodegenerative, ocular, and pulmonary diseases. Understanding of the characteristics of nanoparticles and their interactions with the biological environment will enable us to establish novel strategies for the treatment, prevention, and diagnosis in many diseases, particularly untreatable ones.
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Affiliation(s)
- Abuzer Alp Yetisgin
- Materials Science and Nano-Engineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey;
| | - Sibel Cetinel
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey;
| | - Merve Zuvin
- Mechatronics Engineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey; (M.Z.); (A.K.)
| | - Ali Kosar
- Mechatronics Engineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey; (M.Z.); (A.K.)
- Center of Excellence for Functional Surfaces and Interfaces for Nano Diagnostics (EFSUN), Sabanci University, Istanbul 34956, Turkey
| | - Ozlem Kutlu
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey;
- Center of Excellence for Functional Surfaces and Interfaces for Nano Diagnostics (EFSUN), Sabanci University, Istanbul 34956, Turkey
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48
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A simple method for preparation of silica aerogels doped with monodispersed nanoparticles in homogeneous concentration. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2019.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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49
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Qi L, Gong J. Facile in-situ polymerization of polyaniline-functionalized melamine sponge preparation for mass spectrometric monitoring of perfluorooctanoic acid and perfluorooctane sulfonate from biological samples. J Chromatogr A 2020; 1616:460777. [PMID: 31843197 DOI: 10.1016/j.chroma.2019.460777] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/03/2019] [Accepted: 12/07/2019] [Indexed: 11/29/2022]
Abstract
In this present work, a novel polyaniline-functionalized melamine sponge (PMs) was successfully prepared using a simple unstirred in-situ polymerization process. The PMs was characterized using a scanning electron microscope and contact angle measurements. Its adsorption performance was initially determined via dye adsorption assays, and the conditions affecting the synthesis including polymerization time, acidity, molar ratio, and number and sizes of raw melamine sponge were optimized. The PMs was then used as an efficient adsorbent for the development of a novel, low-cost method for the detection of two representative perfluorinated chemicals, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), using ultra-performance liquid chromatography-triple quadrupole mass spectrometry (UPLC-QqQ-MS/MS) with the internal standard method. To achieve the best extraction efficiency with this method, several variables were optimized, including adsorption time, pH value, the number of PMs, and desorption conditions. Calibration graphs showed a good linear degree at concentration ranging from 0.1 to 50 μg L-1 for PFOA and 0.01-10 μg L-1 for PFOS, with a coefficient of detection R2 = 0.998. The intra-day and inter-day relative standard deviations were found to range from 5.9% to 8.2% for PFOA, and 5.5% to 7.7% for PFOS. Under these optimized conditions, the method was successfully used to measure PFOA and PFOS content in real human serum and urine samples, with average spiked recoveries ranging from 79% and 91% for PFOA, and 81% to 87% for PFOS.
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Affiliation(s)
- Liang Qi
- Beijing Innovation Center for Engineering Science and Advanced Technology, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, and Center for Environment and Health, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, PR China
| | - Jicheng Gong
- Beijing Innovation Center for Engineering Science and Advanced Technology, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, and Center for Environment and Health, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, PR China.
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50
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Shanahan J, Kissel DS, Sullivan E. PANI@UiO-66 and PANI@UiO-66-NH 2 Polymer-MOF Hybrid Composites as Tunable Semiconducting Materials. ACS OMEGA 2020; 5:6395-6404. [PMID: 32258874 PMCID: PMC7114136 DOI: 10.1021/acsomega.9b03834] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/28/2020] [Indexed: 05/22/2023]
Abstract
This investigation explores optimum synthetic conditions for novel polymer-metal organic framework hybrid composites composed of Zr-terephthalate-based MOF UiO-66 and conductive polyaniline (PANI) nanofibers in an effort to optimize conductivity while minimizing MOF structural deformation. Successful syntheses of self-assembled PANI nanofibers in PANI@UiO-66 and PANI@UiO-66-NH2 composites were confirmed using scanning electron microscopy, infrared spectroscopy, and powder X-ray diffraction. The polymer-MOF composites show different bonding synergies to the PANI nanofibers depending on the organic linker used. Electronic properties of the post-synthetically modified PANI@UiO-66 and PANI@UiO-66-NH2 were investigated using UV-vis diffuse reflectance spectroscopy. Sheet resistivity of the self-assembled polymer-MOF composites was determined under an inert atmosphere at room temperature using four-point probe measurements to confirm tunable semiconductivity ranging from 40 to 2 mS/sq. Furthermore, the effects of aniline oxidation on the crystallinity and coordination of UiO-66 and UiO-66-NH2 were determined through analysis of these results.
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Affiliation(s)
- Jordan Shanahan
- Department
of Chemistry, Lewis University, One University Pkwy, Romeoville, Illinois 60446, United States
| | - Daniel S. Kissel
- Department
of Chemistry, Lewis University, One University Pkwy, Romeoville, Illinois 60446, United States
- . Phone: (815) 588-7435
| | - Eirin Sullivan
- Department
of Chemistry, Illinois State University, S University St, Normal, Illinois 61761, United States
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