1
|
Fang W, Mu Z, He Y, Kong K, Jiang K, Tang R, Liu Z. Organic-inorganic covalent-ionic molecules for elastic ceramic plastic. Nature 2023:10.1038/s41586-023-06117-1. [PMID: 37286604 DOI: 10.1038/s41586-023-06117-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 04/21/2023] [Indexed: 06/09/2023]
Abstract
Although organic-inorganic hybrid materials have played indispensable roles as mechanical1-4, optical5,6, electronic7,8 and biomedical materials9-11, isolated organic-inorganic hybrid molecules (at present limited to covalent compounds12,13) are seldom used to prepare hybrid materials, owing to the distinct behaviours of organic covalent bonds14 and inorganic ionic bonds15 in molecular construction. Here we integrate typical covalent and ionic bonds within one molecule to create an organic-inorganic hybrid molecule, which can be used for bottom-up syntheses of hybrid materials. A combination of the organic covalent thioctic acid (TA) and the inorganic ionic calcium carbonate oligomer (CCO) through an acid-base reaction provides a TA-CCO hybrid molecule with the representative molecular formula TA2Ca(CaCO3)2. Its dual reactivity involving copolymerization of the organic TA segment and inorganic CCO segment generates the respective covalent and ionic networks. The two networks are interconnected through TA-CCO complexes to form a covalent-ionic bicontinuous structure within the resulting hybrid material, poly(TA-CCO), which unifies paradoxical mechanical properties. The reversible binding of Ca2+-CO32- bonds in the ionic network and S-S bonds in the covalent network ensures material reprocessability with plastic-like mouldability while preserving thermal stability. The coexistence of ceramic-like, rubber-like and plastic-like behaviours within poly(TA-CCO) goes beyond current classifications of materials to generate an 'elastic ceramic plastic'. The bottom-up creation of organic-inorganic hybrid molecules provides a feasible pathway for the molecular engineering of hybrid materials, thereby supplementing the classical methodology used for the manufacture of organic-inorganic hybrid materials.
Collapse
Affiliation(s)
- Weifeng Fang
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Zhao Mu
- Department of Chemistry, Zhejiang University, Hangzhou, China
- State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yan He
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Kangren Kong
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Kai Jiang
- Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Physics, East China Normal University, Shanghai, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, China.
- State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, China.
| | - Zhaoming Liu
- Department of Chemistry, Zhejiang University, Hangzhou, China.
- State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, China.
| |
Collapse
|
2
|
Zende R, Ghase V, Jamdar V. A review on shape memory polymers. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2121216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Rahul Zende
- Department of Polymer Science, S K Somaiya College, Somaiya Vidyavihar University, Vidyavihar (E), Mumbai 400077, India
| | - Vaijayanti Ghase
- Department of Polymer Science, S K Somaiya College, Somaiya Vidyavihar University, Vidyavihar (E), Mumbai 400077, India
| | - Vandana Jamdar
- Department of Polymer Science, S K Somaiya College, Somaiya Vidyavihar University, Vidyavihar (E), Mumbai 400077, India
| |
Collapse
|
3
|
Catalyst-free reprocessable, degradable and intrinsically flame-retardant epoxy vitrimer for carbon fiber reinforced composites. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
|
4
|
Blue light-emitting fluorene–dendron hybridized polymers: optophysical features. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04571-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AbstractIn this manuscript, we have demonstrated an efficient and rapid synthetic strategy for preparation of new fluorene–dendron-hybridized blue light-emitting polymers P1–P7 by the reaction of 9,9 long-chain dialkylated fluorenes M2–M8 with dendronized monomer (M1) under microwave-assisted reaction condition. These fluorene–dendron-hybridized polymers P1–P7 were characterized using different spectroscopic techniques. Furthermore, the optophysical properties of these polymers P1–P7 were studied which revealed that these synthesized polymers P1–P7 have potential to emerge as capable materials in the development of diodes, particularly for blue light emission. In the future, similar approaches would be utilized for preparation of light-emitting polymer composite.
Collapse
|
5
|
Electric field assisted assembly of nanoparticle loaded microspheres toward industrial applications for organic dye removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Pansare AV, Pansare SV, Pansare PV, More BP, Nagarkar AA, Barbezat M, Donde KJ, Patil VR, Terrasi GP. Economical gold recovery cycle from bio-sensing AuNPs: an application for nanowaste and COVID-19 testing kits. Dalton Trans 2022; 51:14686-14699. [PMID: 36098266 DOI: 10.1039/d2dt01405j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report the controlled growth of biologically active compounds: gold nanoparticles (AuNPs) in various shapes, including their green synthesis, characterization, and studies of their applications towards biological, degradation and recycling. Using spectroscopic methods, studies on responsive binding mechanisms of AuNPs with biopolymers herring sperm deoxyribonucleic acid (hsDNA), bovine serum albumin (BSA), dyes degradation study, and exquisitely gold separation studies/recovery from nanowaste, COVID-19 testing kits, and pregnancy testing kits are discussed. The sensing ability of the AuNPs with biopolymers was investigated via various analytical techniques. The rate of degradation of various dyes in the presence and absence of AuNPs was studied by deploying stirring, IR, solar, and UV-Vis methods. AuNPs were found to be the most active cytotoxic agent against human breast cancer cell lines such as MCF-7 and MDAMB-468. Furthermore, an economical process for the recovery of gold traces from nanowaste, COVID-19 detection kits, and pregnancy testing kits was developed using inexpensive and eco-friendly α-cyclodextrin sugar. This method was found to be easy and safest in comparison with the universally accepted cyanidation process. In the future, small gold jewelry makers and related industries would benefit from the proposed gold-recycling process and it might contribute to their socio-economic growth. The methodologies proposed are also beneficial for trace-level forensic investigation.
Collapse
Affiliation(s)
- Amol V Pansare
- Composite group, Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland.
| | - Shubham V Pansare
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| | - Priyanka V Pansare
- Ramnarain Ruia Autonomous College, University of Mumbai, Matunga (E), India.
| | - Bhausaheb P More
- Directorate of Forensic Science Laboratories Mumbai, Home Department, Government of Maharashtra-98, India
| | - Amit A Nagarkar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138 USA
| | - Michel Barbezat
- Composite group, Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland.
| | - Kamini J Donde
- Ramnarain Ruia Autonomous College, University of Mumbai, Matunga (E), India.
| | - Vishwanath R Patil
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| | - Giovanni P Terrasi
- Composite group, Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland.
| |
Collapse
|
7
|
Determination of Translaminar Notch Fracture Toughness for Laminated Composites Using Brazilian Disk Test. Polymers (Basel) 2022; 14:polym14163246. [PMID: 36015501 PMCID: PMC9415017 DOI: 10.3390/polym14163246] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/01/2022] [Accepted: 08/06/2022] [Indexed: 12/02/2022] Open
Abstract
This paper evaluates the fracture of notched epoxy matrix composites using the Brazilian disk (BD) test from both numerical and experimental points of view. The study began with a comprehensive experimental program covering three different composite lay-ups (quasi-isotropic, unidirectional, and cross-ply) and various geometries of U and V notches. Specifically, the BD samples combined the three layouts, four different notch angles, and three notch radii with three specimens per combination, leading to an overall number of 108 fracture tests. The experiments showed the appropriateness of the BD test for the study of the fracture behavior of composite materials and provided a good pool of data for further investigations. Subsequently, the virtual isotropic material concept (VIMC) was applied in combination with two fracture criteria to theoretically predict the experimentally acquired fracture loads. This study demonstrated that using the VIMC approach can provide robust predictions while incurring much lower computational costs compared to the conventional approaches found in the literature.
Collapse
|
8
|
Lorero I, Campo M, Arribas C, Prolongo MG, López FA, Prolongo SG. Epoxy Composites Reinforced with ZnO from Waste Alkaline Batteries. MATERIALS 2022; 15:ma15082842. [PMID: 35454535 PMCID: PMC9031787 DOI: 10.3390/ma15082842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022]
Abstract
The zinc alkaline battery is one of the most popular sources of portable electrical energy, with more than 300,000 tons being consumed per year. Accordingly, it is critical to recycle its components. In this work, we propose the use of zinc oxide (ZnO) microparticles recovered from worn-out batteries as fillers of epoxy resins. These nanocomposites can be used as protective coatings or pigments and as structural composites with high thermal stability. The addition of ceramic nanofillers, such as ZnO or/and TiO2, could enhance the thermal and mechanical properties, and the hardness and hydrophobicity, of the epoxy resins, depending on several factors. Accordingly, different nanocomposites reinforced with recycled ZnO and commercial ZnO and TiO2 nanoparticles have been manufactured with different nanofiller contents. In addition to the different ceramic oxides, the morphology and size of fillers are different. Recycled ZnO are“desert roses” such as microparticles, commercial ZnO are rectangular parallelepipeds nanoparticles, and commercial TiO2 are smaller spherical nanoparticles. The addition of ceramic fillers produces a small increase of the glass transition temperature (<2%), together with an enhancement of the barrier effect of the epoxy resin, reducing the water diffusion coefficient (<21%), although the maximum water uptake remains constant. The nanocomposite water absorption is fully reversible by subsequent thermal treatment, recovering its initial thermomechanical behavior. The water angle contact (WCA) also increases (~12%) with the presence of ceramic particles, although the highest hydrophobicity (35%) is obtained when the epoxy resin reinforced with recycled flowerlike ZnO microparticles is etched with acid stearic and acetic acid, inducing the corrosion of the ZnO on the surface and therefore the increment of the surface roughness. The presence of desert rose ZnO particles enhances the de lotus effect.
Collapse
Affiliation(s)
- Isaac Lorero
- Materials Science and Engineering Area, ESCET, Rey Juan Carlos University, C/Tulipán s/n, 28933 Madrid, Spain; (I.L.); (M.C.)
| | - Mónica Campo
- Materials Science and Engineering Area, ESCET, Rey Juan Carlos University, C/Tulipán s/n, 28933 Madrid, Spain; (I.L.); (M.C.)
| | - Carmen Arribas
- Materials and Aerospacial Production, Politechnic University, Plaza del Cardenal Cisneros, 3, 28040 Madrid, Spain; (C.A.); (M.G.P.)
| | - Margarita Gonzalez Prolongo
- Materials and Aerospacial Production, Politechnic University, Plaza del Cardenal Cisneros, 3, 28040 Madrid, Spain; (C.A.); (M.G.P.)
| | - Felix Antonio López
- National Centre for Metallurgical Research (CENIM), Spanish National Research Council (CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, Spain;
| | - Silvia G. Prolongo
- Materials Science and Engineering Area, ESCET, Rey Juan Carlos University, C/Tulipán s/n, 28933 Madrid, Spain; (I.L.); (M.C.)
- Correspondence: ; Tel.: +34-91488-8292
| |
Collapse
|
9
|
Pansare AV, Pansare PV, Shedge AA, Pansare SV, Patil VR, Terrasi GP, Donde KJ. Click gold quantum dots biosynthesis with conjugation of quercetin for adenocarcinoma exertion. RSC Adv 2022; 12:18425-18430. [PMID: 35799927 PMCID: PMC9218964 DOI: 10.1039/d2ra02529a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/23/2022] [Indexed: 12/20/2022] Open
Abstract
We developed a cost-effective and eco-friendly click biosynthesis of small molecule quercetin–gold quantum dots (QRT–AuQDs) involving quick conjugation using an ultrasonication method at ambient temperature by utilizing QRT and gold ions in the proportion of 0.1 : 1 (molar ratio). A comparatively very short amount of time (60 seconds) was required as compared to conventional procedures. The present biomimetics research relates to the isolation of bioactive QRT by the circularly spread silica gel layer technique (CSSGLT) and characterization (UV-Vis, FTIR, NMR and DSC analysis). Characterization of the synthesized QRT–AuQDs conjugated complex was carried out by UV-Vis, HR-TEM, DLS, zeta potential and X-ray diffraction. The main objective of the present work was to study the comparative anticancer activity of QRT and QRT–AuQDs on human lung cancer HOP-62 and leukemia K-562 cell lines. The results suggested that QRT–AuQDs showed potential for applications in anticancer treatment and were found to be a more cytotoxic agent in comparison to QRT, causing > 50% inhibition of cancer cells at the concentration < 10−7 M. Hence, small molecule conjugated QRT–AuQDs can be used as a promising material for biomedical, bioengineering and anti-infectives applications. A cost-effective and eco-friendly click biosynthesis of small molecule quercetin–gold quantum dots (QRT–AuQDs) was developed involving quick conjugation, using an ultrasonication method at ambient temperature by utilizing QRT and gold ions in the molar ratio 0.1 : 1.![]()
Collapse
Affiliation(s)
- Amol V. Pansare
- Composite Group, Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India
| | | | - Amol A. Shedge
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India
| | - Shubham V. Pansare
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India
| | - Vishwanath R. Patil
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India
| | - Giovanni P. Terrasi
- Composite Group, Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland
| | - Kamini J. Donde
- Ramnarain Ruia Autonomous College, University of Mumbai, Matunga (E), India
| |
Collapse
|
10
|
Dang J, Zhang J, Li M, Dang L, Gu J. Enhancing intrinsic thermal conductivities of epoxy resins by introducing biphenyl mesogen-containing liquid crystalline co-curing agents. Polym Chem 2022. [DOI: 10.1039/d2py01157c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Epoxy resins were prepared with an enhanced intrinsic thermal conductivity of 0.42 W (m K)−1 using a biphenyl mesogen-containing co-curing agent.
Collapse
Affiliation(s)
- Jinjin Dang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Junliang Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Mukun Li
- Queen Mary University of London Engineering School, NPU, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Lin Dang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Junwei Gu
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| |
Collapse
|
11
|
Khairkar SR, Pansare SV, Shedge AA, Chhatre S, Kulal DK, Patil VR, Pansare AV. Biological macromolecule chitosan grafted co-polymeric composite: bio-adsorption probe on cationic dyes. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03954-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractChitosan biological macromolecule is a versatile polymer; chemical modification has been carried out that lead to the formation of chitosan grafted polymers composites (Chito-g-PC). We proposed synthesis of six various Chito-g-PC as sorbents for toxic dyes. A novel graft copolymerization method based on radical polymerization with vinyl monomer like acrylic acid, acrylamide, N-isopropylacrylamide, methacrylic acid and polyacrylonitrile were utilized in order to address the large amount of swelling at four different pH buffers solution. The effect of initiator and monomer concentration, time and temperature on % grafting and % grafting efficiency were performed. Comparative characterization of Chito and Chito-g-PC were evaluated by SEM, XRD and FTIR, as well as solubility characteristics of the composites were determined by various pH buffer solution. Cationic toxic dyes Malachite green (MG) and Methylene blue (MB) were selected as the sorbet, and Chito-g-PC were used as biosorbents. Thermodynamic analysis showed that the sorption process was spontaneous and endothermic with an increased randomness. The sorption experiments were realized with six different Chito-g-PC for MG and MB at various pH.
Collapse
|
12
|
Nagarkar AA, Root SE, Fink MJ, Ten AS, Cafferty BJ, Richardson DS, Mrksich M, Whitesides GM. Storing and Reading Information in Mixtures of Fluorescent Molecules. ACS CENTRAL SCIENCE 2021; 7:1728-1735. [PMID: 34729416 PMCID: PMC8554834 DOI: 10.1021/acscentsci.1c00728] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Indexed: 05/22/2023]
Abstract
The rapidly increasing use of digital technologies requires the rethinking of methods to store data. This work shows that digital data can be stored in mixtures of fluorescent dye molecules, which are deposited on a surface by inkjet printing, where an amide bond tethers the dye molecules to the surface. A microscope equipped with a multichannel fluorescence detector distinguishes individual dyes in the mixture. The presence or absence of these molecules in the mixture encodes binary information (i.e., "0" or "1"). The use of mixtures of molecules, instead of sequence-defined macromolecules, minimizes the time and difficulty of synthesis and eliminates the requirement of sequencing. We have written, stored, and read a total of approximately 400 kilobits (both text and images) with greater than 99% recovery of information, written at an average rate of 128 bits/s (16 bytes/s) and read at a rate of 469 bits/s (58.6 bytes/s).
Collapse
Affiliation(s)
- Amit A. Nagarkar
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Samuel E. Root
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Michael J. Fink
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Alexei S. Ten
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Brian J. Cafferty
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Douglas S. Richardson
- Harvard
Center for Biological Imaging, 16 Divinity Avenue, Cambridge, Massachusetts 02138, United States
| | - Milan Mrksich
- Department
of Chemistry and Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - George M. Whitesides
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
13
|
Yang J, Li W, Zhou Y, Liu H. Rigid Polyurethane Composites Reinforced with Carbon Fibers Decorated with a Skein‐like Silver Coating. ChemistrySelect 2021. [DOI: 10.1002/slct.202101754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jie Yang
- Ningbo Key Laboratory of Specialty Polymers Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China
| | - Weiwei Li
- Ningbo Key Laboratory of Specialty Polymers Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China
| | - Yilong Zhou
- Ningbo Key Laboratory of Specialty Polymers Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China
| | - Huixin Liu
- Ningbo Key Laboratory of Specialty Polymers Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China
| |
Collapse
|
14
|
Savotchenko S, Kovaleva E. The equation of glass transition of epoxy diane resin modified with the nanoparticle fillers. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03844-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Optical Management of CQD/AgNP@SiNW Arrays with Highly Efficient Capability of Dye Degradation. Catalysts 2021. [DOI: 10.3390/catal11030399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The facile synthetic method for the preparation of incorporated carbon quantum dots (CQDs)/Ag nanoparticles (AgNPs) with well-aligned silicon nanowire (SiNW) arrays is demonstrated, offering the superior photodegradation capabilities covering UV to visible wavelength regions. By examining the morphology, microstructure, crystallinity, chemical feature, surface groups, light-emitting, and reflection characteristics, these hybrid heterostructures are systematically identified. Moreover, the involving degradation kinetics, band diagram, cycling capability, and underlying mechanism of photodegradation are investigated, validating their remarkable and reliable photocatalytic performances contributed from the strongly reduced light reflectivity, superior capability of charge separation, and sound wettability with dye solutions.
Collapse
|
16
|
Khairkar SR, Pansare AV, Shedge AA, Chhatre SY, Suresh AK, Chakrabarti S, Patil VR, Nagarkar AA. Hydrophobic interpenetrating polyamide-PDMS membranes for desalination, pesticides removal and enhanced chlorine tolerance. CHEMOSPHERE 2020; 258:127179. [PMID: 32554002 DOI: 10.1016/j.chemosphere.2020.127179] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Hydrophobic membranes for desalination and toxic organic pollutant removal have been fabricated using polyamide - PDMS (polydimethylsiloxane) chemistries in a one-step protocol. The curing of polyamide and PDMS are orthogonal and co-curing both networks imparts hydrophobicity to the thin film composite membranes. The membranes exhibit increased adsorption of pesticides from the feed water along with maintaining excellent salt rejection capability (97% NaCl rejection), thus giving the membranes a multifunctional character. Three toxic pesticides have been used in this study to demonstrate the viability of combining osmosis desalination technology with organic matter adsorption. The membranes also show excellent resistance to fouling by toxic pesticides (85% salt rejection vs 67% for commercial membranes in the presence of pesticides) and significantly improved chlorine tolerance (93.8% salt rejection vs 86.5% for commercial membranes after 20 h of exposure to sodium hypochlorite solution).
Collapse
Affiliation(s)
- Shyam R Khairkar
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), Tsukuba Ibaraki, 305-0047, Japan
| | - Amol V Pansare
- Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600, Dübendorf, Switzerland
| | - Amol A Shedge
- Department of Chemistry, University of Mumbai, Mumbai, 400098, India
| | - Shraddha Y Chhatre
- National Chemical Laboratory (NCL) Dr. Homi Bhabha Road, Pune, 411008, India
| | - A K Suresh
- Department of Chemical Engineering, Indian Institute of Technology, Bombay, Bombay, 400076, Maharashtra, India
| | - Subhananda Chakrabarti
- Department of Electrical Engineering, Indian Institute of Technology Bombay (IITB), 400076, India
| | | | - Amit A Nagarkar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA.
| |
Collapse
|
17
|
Shedge AA, Pansare SV, Khairkar SR, Chhatre SY, Chakrabarti S, Nagarkar AA, Pansare AV, Patil VR. Nanocomposite of functional silver metal containing curcumin biomolecule model systems: Protein BSA bioavailability. J Inorg Biochem 2020; 212:111210. [PMID: 33010530 DOI: 10.1016/j.jinorgbio.2020.111210] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 11/19/2022]
Abstract
Curcumin, a constituent of Curcuma longa L-Zingiberaceae is used in traditional Indian and worldwide medicine and shows anticancer and antioxidant properties. Curcumin has numerous biological and pharmacological activities but due to its hydrophobic nature, the major drawback is poor absorption and rapid elimination, rendering curcumin with the tag of a poor biomaterial. Hence, there is a need to develop functional metal containing curcumin model systems (FMCCMS) as a metallo-biomolecule to enhance the bioavailability of curcumin. We designed the interaction of silver metal ion with curcumin to form curcumin-silver nanocomposite (CURC-AgNCP) via ultrasonic synthetic route. Formations of FMCCMS were characterized by spectroscopic techniques. The crystalline face-centered cubic pattern and particle size of the nanocomposite was evaluated using X-ray diffraction and high-resolution transmission electron microscopy. The bonding of silver metal to curcumin was confirmed by X-ray photon spectroscopy. Interaction of the nanocomposite with bovine serum albumin (BSA) protein was performed using excitation, emission, and circular dichroism spectroscopy. In binding interaction of BSA, the negative value of ∆S° (-358.04 J mol-1 K-1) and ∆H° (-129.42 KJ mol-1) demonstrates the hydrophilic nature of the nanocomposite. The binding distance r evaluated according to the Forster resonance energy transfer theory and was 4.69 nm for CURC-AgNCP, which suggested non-radiative transfer of energy between CURC-AgNCP and BSA. The role of FMCCMS metallo-biomolecule CURC-AgNCP in medicine for cancer activity can have immense importance and hence we performed Sulphorhodamine B based in-vitro cytotoxicity assay on human breast cancer Michigan Cancer Foundation-7 cell line.
Collapse
Affiliation(s)
- Amol A Shedge
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India
| | - Shubham V Pansare
- Department of Electrical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai 400076, India
| | - Shyam R Khairkar
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
| | - Shraddha Y Chhatre
- National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pune 411008, India
| | - S Chakrabarti
- Department of Electrical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai 400076, India
| | - Amit A Nagarkar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
| | - Amol V Pansare
- Department of Electrical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai 400076, India; Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, 8600 Dübendorf, Switzerland.
| | - Vishwanath R Patil
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| |
Collapse
|
18
|
Curing behaviors and properties of epoxy resins with para-hexatomic ring blocks: Excellent comprehensive performances of tetrafluorophenyl. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122828] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
19
|
Aoki M, Shundo A, Yamamoto S, Tanaka K. Effect of a heterogeneous network on glass transition dynamics and solvent crack behavior of epoxy resins. SOFT MATTER 2020; 16:7470-7478. [PMID: 32747885 DOI: 10.1039/d0sm00625d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In general, it has been widely accepted that the physical properties of an epoxy resin are strongly dependent on how it is prepared. However, a clear understanding of the mechanisms of the relationship at a molecular level has yet to be achieved. We here studied the glass transition dynamics and fracture behavior of four epoxy resins, which were pre-cured at different temperatures and well cured under the same conditions. Fourier-transform infrared spectroscopy revealed that the reaction kinetics for an epoxy-amine mixture were strongly dependent on the pre-curing temperature. The glass transition temperature of epoxy resins with the same cross-linking density was dependent on the pre-curing temperature. Dielectric relaxation spectroscopy and dynamic mechanical analysis revealed that the fragility index of the epoxy resin decreased with increasing pre-curing temperature, indicating that the network structure formed in it became more heterogeneous with increasing pre-curing temperature. Once the epoxy resin was immersed in a good solvent, it was partly swollen and was then macroscopically fractured. The fracture was initiated by the crack generation in an un-swollen region of the resin due to the stress induced upon swelling. The immersion time required to reach the fracture decreased as the extent of the heterogeneity increased. The knowledge here obtained should be useful for understanding and controlling fracture toughness of epoxy resins, leading to the furtherance of their functionalization.
Collapse
Affiliation(s)
- Mika Aoki
- Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka 819-0395, Japan.
| | - Atsuomi Shundo
- Department of Automotive Science, Kyushu University, Fukuoka 819-0395, Japan. and Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
| | - Satoru Yamamoto
- Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka 819-0395, Japan.
| | - Keiji Tanaka
- Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka 819-0395, Japan. and Department of Automotive Science, Kyushu University, Fukuoka 819-0395, Japan. and Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
| |
Collapse
|
20
|
Pansare AV, Chhatre SY, Khairkar SR, Bell JG, Barbezat M, Chakrabarti S, Nagarkar AA. "Shape-Coding": Morphology-Based Information System for Polymers and Composites. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27555-27561. [PMID: 32441499 DOI: 10.1021/acsami.0c05314] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fiber-reinforced composites have become the material of choice for aerospace structures because of their favorable strength-to-weight ratio. Given the increasing amounts of counterfeit composite parts showing up in the complex aerospace supply chain, it is absolutely vital to track a composite part throughout its lifecycle-from production to usage and to disposal. Existing barcoding methods are invasive, affect the structural properties of composites, and/or are vulnerable to tampering. We describe a universal method to store information in fiber-reinforced composites based on solid-state in situ reduction leading to embedded nanoparticles with controlled morphologies. This simple, cost-effective, mild, surfactant-free, and one-step protocol for the fabrication of embedded platinum nanostructures leads to morphology-based barcodes for polymeric composites. We also describe a coding methodology wherein a 1 × 1 cm code can represent 3.4 billion parts to 95 trillion parts, depending on the resolution required along with access to morphology-based chemical encryption systems.
Collapse
Affiliation(s)
- Amol V Pansare
- Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, Dübendorf 8600, Switzerland
| | - Shraddha Y Chhatre
- National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pune 411008, India
| | - Shyam R Khairkar
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for MaterialsScience, Tsukuba, Ibaraki 305-0047, Japan
| | - Jeffrey G Bell
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Michel Barbezat
- Mechanical Systems Engineering, Swiss Federal Laboratories for Materials Science and Technology-Empa, Dübendorf 8600, Switzerland
| | - Subhananda Chakrabarti
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Amit A Nagarkar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
21
|
Tan EKW, Shrestha PK, Pansare AV, Chakrabarti S, Li S, Chu D, Lowe CR, Nagarkar AA. Density Modulation of Embedded Nanoparticles via Spatial, Temporal, and Chemical Control Elements. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901802. [PMID: 31691381 DOI: 10.1002/adma.201901802] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Nanoparticle polymer composites have enabled material multifunctionalities that are difficult to obtain otherwise. A simple modification to a commercially available resin system enables a universal methodology to embed nanoparticles in resins via spatial, temporal, thermal, concentration, and chemical control parameters. Changes in nanoparticle density distribution are exploited to demonstrate dynamic optical and electronic properties that can be processed on-demand, without the need for expensive equipment or cleanroom facilities. This strategy provides access to the control of optical (cooperative plasmonic effects), electronic (insulator to a conductor), and chemical parameters (multimetal patterning). Using the same composite resin system, the followings are fabricated: i) diffraction gratings with tuneable diffraction efficiencies (10-78% diffraction efficiencies), ii) organic electrochemical transistors with a low drive voltage, and iii) embedded electrodes in confined spaces for potential diagnostic applications.
Collapse
Affiliation(s)
- Edward K W Tan
- Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | - Pawan K Shrestha
- Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | - Amol V Pansare
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, Maharashtra, India
| | - Subhananda Chakrabarti
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, Maharashtra, India
| | - Shunpu Li
- Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, 518118, China
| | - Daping Chu
- Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | - Christopher R Lowe
- Cambridge Academy of Therapeutic Sciences, Department of Pharmacology, University of Cambridge, Cambridge, CB2 1PD, UK
| | - Amit A Nagarkar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| |
Collapse
|