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Pourmohammadi-Mahunaki M, Haddadi-Asl V, Roghani-Mamaqani H, Koosha M, Yazdi M. Effect of chain extender length and molecular architecture on phase separation and rheological properties of ether-based polyurethanes. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03907-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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2
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Biswas A, Aswal VK, Maiti P. Tunable shape memory behavior of polymer with surface modification of nanoparticles. J Colloid Interface Sci 2019; 556:147-158. [PMID: 31445444 DOI: 10.1016/j.jcis.2019.08.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/20/2019] [Accepted: 08/14/2019] [Indexed: 01/04/2023]
Abstract
In-situ inclusion of different nanoclays during synthesis results in different level of dispersion of nanoclays in the polymer matrix depending upon the surface modification of the nanoclay. Higher intercalation of the polymer chains within the galleries of organically modified nanoclay results better dispersion as compared to pristine nanoclay. The spectroscopic measurement shows that the extent of interaction between the nanoclay and polymer chains is higher in modified nanoclay nanocomposite which decreases the crystallinity considerably as compared to pristine clay nanocomposite. Interestingly, shape memory behavior measured at physiological temperature (37 °C) improves significantly in presence of organically modified nanoclay while it decreases in presence of unmodified nanoclay in same polyurethane matrix. Complete melting of soft segment along with restricted flipping of hard segment with temperature in presence of extensive interaction in nanocomposite with modified nanoclay helps it to achieve better shape memory behavior against flipping induced stacking of hard segment with temperature along with poor interaction decreases its shape memory behavior in nanocomposite with unmodified nanoclay. Temperature dependent nanostructure reveals the cause of variation in shape memory behavior in presence of organically modified nanoclay. Further, the cell culture studies like cell adhesion, cell viability assay and fluorescence imaging, suggest superior biomaterial of the nanocomposite with modified nanoclay as compared to other composite. Better biodegradable nature of the modified nanocomposite makes it suitable candidate for its potential biomedical applications.
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Affiliation(s)
- Arpan Biswas
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India
| | - Vinod K Aswal
- Solid State Physics Department, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Pralay Maiti
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
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3
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Saxena D, Soundararajan N, Katiyar V, Rana D, Maiti P. Structural, mechanical, and gas barrier properties of poly(ethylene terephthalate) nanohybrid using nanotalc. J Appl Polym Sci 2019. [DOI: 10.1002/app.48607] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Dipti Saxena
- School of Materials Science and TechnologyIndian Institute of Technology (Banaras Hindu University) Varanasi 221005 India
| | - Narendren Soundararajan
- Department of Chemical EngineeringIndian Institute of Technology Guwahati Guwahati 781039 Assam India
| | - Vimal Katiyar
- Department of Chemical EngineeringIndian Institute of Technology Guwahati Guwahati 781039 Assam India
| | - Dipak Rana
- Industrial Membrane Research Institute, Department of Chemical and Biological EngineeringUniversity of Ottawa 161 Louis Pasteur Street Ottawa Ontario KIN 6N5 Canada
| | - Pralay Maiti
- School of Materials Science and TechnologyIndian Institute of Technology (Banaras Hindu University) Varanasi 221005 India
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Biswas A, Shukla A, Maiti P. Biomaterials for Interfacing Cell Imaging and Drug Delivery: An Overview. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12285-12305. [PMID: 31125238 DOI: 10.1021/acs.langmuir.9b00419] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This feature article provides an overview of different kinds of futuristic biomaterials which have the potential to be used for fluorescent imaging and drug delivery, often simultaneously. The synthesis route or preparation process, fluorescence property, release profile, biocompatibility, bioimaging, and mechanistic approaches are vividly discussed. These include bioimaging with fluorescently doped quantum dots, mesoporous silica, noble metals, metal clusters, hydrophilic/hydrophobic polymers, semiconducting polymer dots, carbon/graphene dots, dendrimers, fluorescent proteins, and other nanobiomaterials. Another section discusses the controlled and targeted drug, gene, or biologically active material delivery using various vehicles such as micelles, 2D nanomaterials, organic nanoparticles, polymeric nanohybrids, and chemically modified polymers. In the last section, we discuss biomaterials, which can deliver biologically active molecules, and imaging the cell/tissue.
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Affiliation(s)
- Arpan Biswas
- School of Materials Science and Technology , Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005 , India
| | - Aparna Shukla
- School of Materials Science and Technology , Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005 , India
| | - Pralay Maiti
- School of Materials Science and Technology , Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005 , India
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5
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Efficacy of polyurethane graft on cyclodextrin to control drug release for tumor treatment. J Colloid Interface Sci 2019; 534:215-227. [DOI: 10.1016/j.jcis.2018.09.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 02/03/2023]
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6
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Shukla A, Ray B, Maiti P. Grafted cyclodextrin as carrier for control drug delivery and efficient cell killing. J Biomed Mater Res A 2018; 107:434-444. [DOI: 10.1002/jbm.a.36560] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/28/2018] [Accepted: 10/08/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Aparna Shukla
- School of Materials Science and Technology; Indian Institute of Technology, Banaras Hindu University; Varanasi, 221005 India
| | - Biswajit Ray
- Department of Chemistry; Institute of Science, Banaras Hindu University; Varanasi, 221005 India
| | - Pralay Maiti
- School of Materials Science and Technology; Indian Institute of Technology, Banaras Hindu University; Varanasi, 221005 India
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7
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Biswas A, Singh AP, Rana D, Aswal VK, Maiti P. Biodegradable toughened nanohybrid shape memory polymer for smart biomedical applications. NANOSCALE 2018; 10:9917-9934. [PMID: 29770422 DOI: 10.1039/c8nr01438h] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A polyurethane nanohybrid has been prepared through the in situ polymerization of an aliphatic diisocyanate, ester polyol and a chain extender in the presence of two-dimensional platelets. Polymerization within the platelet galleries helps to intercalate, generate diverse nanostructure and improve the nano to macro scale self-assembly, which leads to a significant enhancement in the toughness and thermal stability of the nanohybrid in comparison to pure polyurethane. The extensive interactions, the reason for property enhancement, between nanoplatelets and polymer chains are revealed through spectroscopic measurements and thermal studies. The nanohybrid exhibits significant improvement in the shape memory phenomena (91% recovery) at the physiological temperature, which makes it suitable for many biomedical applications. The structural alteration, studied through temperature dependent small angle neutron scattering and X-ray diffraction, along with unique crystallization behavior have extensively revealed the special shape memory behavior of this nanohybrid and facilitated the understanding of the molecular flipping in the presence of nanoplatelets. Cell line studies and subsequent imaging testify that this nanohybrid is a superior biomaterial that is suitable for use in the biomedical arena. In vivo studies on albino rats exhibit the potential of the shape memory effect of the nanohybrid as a self-tightening suture in keyhole surgery by appropriately closing the lips of the wound through the recovery of the programmed shape at physiological temperature with faster healing of the wound and without the formation of any scar. Further, the improved biodegradable nature along with the rapid self-expanding ability of the nanohybrid at 37 °C make it appropriate for many biomedical applications including a self-expanding stent for occlusion recovery due to its tough and flexible nature.
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Affiliation(s)
- Arpan Biswas
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
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Patel DK, Senapati S, Mourya P, Singh MM, Aswal VK, Ray B, Maiti P. Functionalized Graphene Tagged Polyurethanes for Corrosion Inhibitor and Sustained Drug Delivery. ACS Biomater Sci Eng 2017; 3:3351-3363. [DOI: 10.1021/acsbiomaterials.7b00342] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | | | | | | | - Vinod K. Aswal
- Solid
State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Biswajit Ray
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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Ho CMB, Mishra A, Hu K, An J, Kim YJ, Yoon YJ. Femtosecond-Laser-Based 3D Printing for Tissue Engineering and Cell Biology Applications. ACS Biomater Sci Eng 2017; 3:2198-2214. [PMID: 33445279 DOI: 10.1021/acsbiomaterials.7b00438] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Fabrication of 3D cell scaffolds has gained tremendous attention in recent years because of its applications in tissue engineering and cell biology applications. The success of tissue engineering or cell interactions mainly depends on the fabrication of well-defined microstructures, which ought to be biocompatible for cell proliferation. Femtosecond-laser-based 3D printing is one of the solution candidates that can be used to manufacture 3D tissue scaffolds through computer-aided design (CAD) which can be efficiently engineered to mimic the microenvironment of tissues. UV-based lithography has also been used for constructing the cellular scaffolds but the toxicity of UV light to the cells has prevented its application to the direct patterning of the cells in the scaffold. Although the mask-based lithography has provided a high resolution, it has only enabled 2D patterning not arbitrary 3D printing with design flexibility. Femtosecond-laser-based 3D printing is trending in the area of tissue engineering and cell biology applications due to the formation of well-defined micro- and submicrometer structures via visible and near-infrared (NIR) femtosecond laser pulses, followed by the fabrication of cell scaffold microstructures with a high precision. Laser direct writing and multiphoton polymerization are being used for fabricating the cell scaffolds, The implication of spatial light modulators in the interference lithography to generate the digital hologram will be the future prospective of mask-based lithography. Polyethylene glycol diacrylate (PEG-DA), ormocomp, pentaerythritol tetraacrylate (PETTA) have been fabricated through TPP to generate the cell scaffolds, whereas SU-8 was used to fabricate the microrobots for targeted drug delivery. Well-designed and precisely fabricated 3D cell scaffolds manufactured by femtosecond-laser-based 3D printing can be potentially used for studying cell migration, matrix invasion and nuclear stiffness to determine stage of cancer and will open broader horizons in the future in tissue engineering and biology applications.
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Affiliation(s)
- Chee Meng Benjamin Ho
- School of Mechanical & Aerospace Engineering and §Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Abhinay Mishra
- School of Mechanical & Aerospace Engineering and Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Kan Hu
- School of Mechanical & Aerospace Engineering and Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Jianing An
- School of Mechanical & Aerospace Engineering and Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Young-Jin Kim
- School of Mechanical & Aerospace Engineering and Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Yong-Jin Yoon
- School of Mechanical & Aerospace Engineering and Singapore Centre for 3D Printing, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
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10
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Srivastava S, Biswas A, Senapati S, Ray B, Rana D, Aswal VK, Maiti P. Novel shape memory behaviour in IPDI based polyurethanes: Influence of nanoparticle. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.080] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Shoaib M, Bahadur A, Iqbal S, Rahman MSU, Ahmed S, Shabir G, Javaid MA. Relationship of hard segment concentration in polyurethane-urea elastomers with mechanical, thermal and drug release properties. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2016.12.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Kumar S, Vashisht H, Olasunkanmi LO, Bahadur I, Verma H, Goyal M, Singh G, Ebenso EE. Polyurethane Based Triblock Copolymers as Corrosion Inhibitors for Mild Steel in 0.5 M H2SO4. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03928] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sudershan Kumar
- Department of Chemistry,
Hindu College, University of Delhi, Delhi 110007, India
| | - Hemlata Vashisht
- Department of Chemistry, Kirrori Mal, University of Delhi, Delhi 110007, India
| | - Lukman O. Olasunkanmi
- Department of Chemistry, North-West University (Mafikeng Campus) and Material Science Innovation & Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife 220005, Nigeria
| | - Indra Bahadur
- Department of Chemistry, North-West University (Mafikeng Campus) and Material Science Innovation & Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Hemant Verma
- Department of Chemistry,
Hindu College, University of Delhi, Delhi 110007, India
| | - Madhusudan Goyal
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Gurmeet Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Eno E. Ebenso
- Department of Chemistry, North-West University (Mafikeng Campus) and Material Science Innovation & Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
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13
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Huang TC, Lai GH, Li CE, Tsai MH, Wan PY, Chung YH, Lin MH. Advanced anti-corrosion coatings prepared from α-zirconium phosphate/polyurethane nanocomposites. RSC Adv 2017. [DOI: 10.1039/c6ra27588e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper presents the first successful application of α-zirconium phosphate/polyurethane (ZrP/PU) nanocomposites for corrosion protection.
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Affiliation(s)
- Tsao-Cheng Huang
- Department of Chemical and Materials Engineering
- National Chin-Yi University of Technology
- 41170 Taichung
- Republic of China
| | - Guan-Hui Lai
- Ph. D. Program
- Graduate Institute of Precision Manufacturing
- National Chin-Yi University of Technology
- 41170 Taichung
- Republic of China
| | - Chen-En Li
- Department of Chemical and Materials Engineering
- National Chin-Yi University of Technology
- 41170 Taichung
- Republic of China
| | - Mei-Hui Tsai
- Ph. D. Program
- Graduate Institute of Precision Manufacturing
- National Chin-Yi University of Technology
- 41170 Taichung
- Republic of China
| | - Peng-Yun Wan
- Department of Chemical and Materials Engineering
- National Chin-Yi University of Technology
- 41170 Taichung
- Republic of China
| | - Yi-Hsiu Chung
- Department Chemical Engineering
- Tatung University
- 104 Taipei
- Republic of China
| | - Meng-Hung Lin
- National Chung-Shan Institute of Science and Technology
- Aeronautical Systems Research Division
- 40722 Taichung
- Republic of China
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14
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Ho CMB, Mishra A, Lin PTP, Ng SH, Yeong WY, Kim YJ, Yoon YJ. 3D Printed Polycaprolactone Carbon Nanotube Composite Scaffolds for Cardiac Tissue Engineering. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600250] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/10/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Chee Meng Benjamin Ho
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- Singapore Centre for 3D Printing; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- A*STAR's Singapore Institute of Manufacturing Technology (SIMTech); 2 Fusionopolis Way, Level 10 Innovis and Kinesis 138634 Singapore
| | - Abhinay Mishra
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- Singapore Centre for 3D Printing; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Pearlyn Teo Pei Lin
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Sum Huan Ng
- A*STAR's Singapore Institute of Manufacturing Technology (SIMTech); 2 Fusionopolis Way, Level 10 Innovis and Kinesis 138634 Singapore
| | - Wai Yee Yeong
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- Singapore Centre for 3D Printing; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Young-Jin Kim
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- Singapore Centre for 3D Printing; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Yong-Jin Yoon
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
- Singapore Centre for 3D Printing; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
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15
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Biswas A, Aswal VK, Sastry PU, Rana D, Maiti P. Reversible Bidirectional Shape Memory Effect in Polyurethanes through Molecular Flipping. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00536] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Arpan Biswas
- School
of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India
| | - Vinod K. Aswal
- Solid
State Physics, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - P. U. Sastry
- Solid
State Physics, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Dipak Rana
- Industrial
Membrane Research Institute, Department of Chemical and Biological
Engineering, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON KIN
6N5, Canada
| | - Pralay Maiti
- School
of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India
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16
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Patel DK, Singh RK, Singh SK, Aswal VK, Rana D, Ray B, Maiti P. Graphene as a chain extender of polyurethanes for biomedical applications. RSC Adv 2016. [DOI: 10.1039/c6ra12792d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Chemically tagged graphene nanohybrid for a controlled drug delivery vehicle.
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Affiliation(s)
- Dinesh K. Patel
- School of Material Science and Technology
- Indian Institute of Technology (BHU)
- Varanasi 221005
- India
| | - Rajesh K. Singh
- Department of Dravyaguna
- Institute of Medical Sciences
- Banaras Hindu University
- Varanasi 221005
- India
| | - Santosh K. Singh
- Centre of Experimental Medicine & Surgery
- Institute of Medical Sciences
- Banaras Hindu University
- Varanasi 221005
- India
| | - Vinod K. Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Dipak Rana
- Industrial Membrane Research Institute
- Department of Chemical and Biological Engineering
- University of Ottawa
- Ottawa
- Canada
| | - Biswajit Ray
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Pralay Maiti
- School of Material Science and Technology
- Indian Institute of Technology (BHU)
- Varanasi 221005
- India
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18
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Patel DK, Rana D, Aswal VK, Srivastava S, Roy P, Maiti P. Influence of graphene on self-assembly of polyurethane and evaluation of its biomedical properties. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.076] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Liu JC, Martin DJ, Moon RJ, Youngblood JP. Enhanced thermal stability of biomedical thermoplastic polyurethane with the addition of cellulose nanocrystals. J Appl Polym Sci 2015. [DOI: 10.1002/app.41970] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jen-Chieh Liu
- School of Materials Engineering; Purdue University; West Lafayette Indiana
| | - Darren J. Martin
- Australian Institute of Bioengineering & Technology; University of Queensland; Brisbane 4072 Australia
| | - Robert J. Moon
- School of Materials Engineering; Purdue University; West Lafayette Indiana
- Forest Products Laboratory; US Forest Service; Madison Wisconsin
- Renewable Bioproducts Institute; Georgia Institute of Technology; Atlanta Georgia
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20
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Amela-Cortes M, Paofai S, Cordier S, Folliot H, Molard Y. Tuned red NIR phosphorescence of polyurethane hybrid composites embedding metallic nanoclusters for oxygen sensing. Chem Commun (Camb) 2015; 51:8177-80. [DOI: 10.1039/c5cc01867f] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Phosphorescent metallic clusters are functionalized and integrated in polyurethane by copolymerization. Solid state quantum yield measurements show a drastic and reversible enhancement of nanocomposite luminescence depending on its surrounding atmosphere.
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Affiliation(s)
- Maria Amela-Cortes
- Université de Rennes
- 1-CNRS UMR 6226 “Institut des Sciences Chimiques de Rennes”
- Campus de Beaulieu
- 35042 Rennes Cedex
- France
| | - Serge Paofai
- Université de Rennes
- 1-CNRS UMR 6226 “Institut des Sciences Chimiques de Rennes”
- Campus de Beaulieu
- 35042 Rennes Cedex
- France
| | - Stéphane Cordier
- Université de Rennes
- 1-CNRS UMR 6226 “Institut des Sciences Chimiques de Rennes”
- Campus de Beaulieu
- 35042 Rennes Cedex
- France
| | - Hervé Folliot
- Université Européenne de Bretagne
- INSA
- FOTON
- UMR 6082
- F-35708 Rennes
| | - Yann Molard
- Université de Rennes
- 1-CNRS UMR 6226 “Institut des Sciences Chimiques de Rennes”
- Campus de Beaulieu
- 35042 Rennes Cedex
- France
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21
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Rath SK, Aswal VK, Sharma C, Joshi K, Patri M, Harikrishnan G, Khakhar DV. Mechanistic origins of multi-scale reinforcements in segmented polyurethane-clay nanocomposites. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Mishra A, Singh SK, Dash D, Aswal VK, Maiti B, Misra M, Maiti P. Self-assembled aliphatic chain extended polyurethane nanobiohybrids: emerging hemocompatible biomaterials for sustained drug delivery. Acta Biomater 2014; 10:2133-46. [PMID: 24374322 DOI: 10.1016/j.actbio.2013.12.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 12/16/2013] [Accepted: 12/18/2013] [Indexed: 10/25/2022]
Abstract
Novel polyurethanes (PUs) have been synthesized using an aliphatic diisocyanate and aliphatic chain extenders with varying chain length. Nanocomposites of PUs have been prepared by dispersing 2-D nanoclay in poly-ol followed by prepolymerization and subsequent chain extension using various chain extenders. Systematic improvement in toughness and adequate enhancement in stiffness in the presence of nanoclay has been observed for PUs with longer chain extenders, and these new classes of nanocomposites exhibit no toughness-stiffness trade-off. Bottom-up self-assembly starting from the molecular level to micron-scale crystallite has been revealed through electronic structure calculation, X-ray diffraction, small-angle neutron scattering, atomic force microscopy and optical images. The role of hydrogen bonding has been revealed for this type of supramolecular assembly, and in the presence of organically modified nanoclay hydrogen bonding contributes to the formation of bigger clusters of nanocomposites. Controlled biodegradation of PU and its nanocomposites has been investigated in enzymatic media. Biocompatibility of these novel nanocomposites has been extensively verified through platelet adhesion, aggregation and hemolysis assay. Sustained drug delivery by biocompatible pristine PU and its nanocomposites has been demonstrated either by controlling the crystallite size of the polyurethane through alteration of the aliphatic chain length of the extender or by incorporating disc-like nanoclay, creating a tortuous path that results in delayed diffusion. Hence, the developed nanohybrids are potential biomaterials for tissue engineering and drug delivery.
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Jana KK, Patel M, Rana D, Maiti P. Nonlinear Viscoelasticity of One Dimensional Filler Reinforced Elastomer Composites. NON-LINEAR VISCOELASTICITY OF RUBBER COMPOSITES AND NANOCOMPOSITES 2014. [DOI: 10.1007/978-3-319-08702-3_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Monsalve LN, Petroselli G, Erra-Ballsells R, Vázquez A, Baldessari A. Chemoenzymatic synthesis of novel N
-(2-hydroxyethyl)-β-peptoid oligomer derivatives and application to porous polycaprolactone films. POLYM INT 2013. [DOI: 10.1002/pi.4660] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Leandro N. Monsalve
- Laboratorio de Polímeros y Materiales Compuestos; Instituto de Tecnología en Polímeros y Nanotecnología (ITPN), Facultad de Ingeniería, UBA − CONICET; Las Heras 2214 (C1127AAR) Buenos Aires Argentina
- INTI - Centro de Micro y Nanoelectrónica del Bicentenario; Parque tecnológico Miguelete; Av. General Paz 5445 (B1650WAB) San Martín Buenos Aires Argentina
| | - Gabriela Petroselli
- Departamento de Química Orgánica y CIHIDECAR, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Ciudad Universitaria; Pabellón 2, Piso 3 (C1428EGA) Buenos Aires Argentina
| | - Rosa Erra-Ballsells
- Departamento de Química Orgánica y CIHIDECAR, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Ciudad Universitaria; Pabellón 2, Piso 3 (C1428EGA) Buenos Aires Argentina
| | - Analía Vázquez
- Laboratorio de Polímeros y Materiales Compuestos; Instituto de Tecnología en Polímeros y Nanotecnología (ITPN), Facultad de Ingeniería, UBA − CONICET; Las Heras 2214 (C1127AAR) Buenos Aires Argentina
| | - Alicia Baldessari
- Laboratorio de Biocatálisis, Departamento de Química Orgánica y UMYMFOR, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Ciudad Universitaria; Pabellón 2, Piso 3 (C1428EGA) Buenos Aires Argentina
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Andriani Y, Jack KS, Gilbert EP, Edwards GA, Schiller TL, Strounina E, Osman AF, Martin DJ. Organization of mixed dimethyldioctadecylammonium and choline modifiers on the surface of synthetic hectorite. J Colloid Interface Sci 2013; 409:72-9. [DOI: 10.1016/j.jcis.2013.07.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 07/21/2013] [Indexed: 10/26/2022]
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26
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Phua SL, Yang L, Toh CL, Huang S, Tsakadze Z, Lau SK, Mai YW, Lu X. Reinforcement of polyether polyurethane with dopamine-modified clay: the role of interfacial hydrogen bonding. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4571-4578. [PMID: 22931194 DOI: 10.1021/am300947b] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation, at a very low clay loading. The large reinforcement could be attributed to the hydrogen bonds between the hard segments of PU and stiff D-clay layers that lead to more effective interfacial stress transfer between the polymer and D-clay. Besides, the interactions between D-clay and PU are also stronger than those between Cloisite 30B organoclay and the PU chains. Consequently, at a similar clay loading, the PU/D-clay nanocomposite has much higher storage modulus than the PU/organoclay nanocomposite at elevated temperatures.
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Affiliation(s)
- Si Lei Phua
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
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Hu X, Zhang M, Ruan W, Zhu F, Ouyang G. Determination of organophosphorus pesticides in ecological textiles by solid-phase microextraction with a siloxane-modified polyurethane acrylic resin fiber. Anal Chim Acta 2012; 736:62-8. [DOI: 10.1016/j.aca.2012.05.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 05/16/2012] [Accepted: 05/18/2012] [Indexed: 11/17/2022]
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28
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Tiwari VK, Shripathi T, Lalla NP, Maiti P. Nanoparticle induced piezoelectric, super toughened, radiation resistant, multi-functional nanohybrids. NANOSCALE 2012; 4:167-75. [PMID: 22068838 DOI: 10.1039/c1nr11009h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We have developed multifunctional nanohybrids of poly(vinylidene fluoride-co-chlorotrifluoroethylene) (CTFE) with a small percentage of surface modified inorganic layered silicate showing dramatic improvement in toughness, radiation resistant and piezoelectric properties vis-à-vis pristine polymer. Massive intercalation (d(001) 1.8 → 3.9 nm) of polymer inside the nanoclay galleries and unique crystallization behavior of the fluoropolymer on the surface of individual silicate layer has been reported. Toughness in the nanohybrid increases more than three orders of magnitude as compared to pure CTFE. High energy radiation (80 MeV Si(+7)) causes chain session, amorphization and creates olefinic bonds in the pure polymer while the nanohybrids are radiation resistant at a similar dose. Nanoclay induces the metastable piezoelectric β-phase in CTFE, suitable for sensor and actuator application. Molecular level changes after irradiation and controlled morphology for smart membrane have been confirmed by using spectroscopy, sol-gel technique, surface morphology studies and in situ residual gas analysis.
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Affiliation(s)
- Vimal K Tiwari
- School of Materials Science and Technology, Institute of Technology, Banaras Hindu University, Varanasi 221 005, India
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29
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Molecular analysis of oncogenicity of the transcription factor, BRN3A, in cervical cancer cells. J Cancer Res Clin Oncol 2011; 137:1859-67. [DOI: 10.1007/s00432-011-1059-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 09/01/2011] [Indexed: 01/19/2023]
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30
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Multiscale Modeling of the Morphology and Properties of Segmented Silicone-Urea Copolymers. J Inorg Organomet Polym Mater 2011. [DOI: 10.1007/s10904-011-9588-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Banerjee S, Mishra A, Singh MM, Maiti B, Ray B, Maiti P. Highly efficient polyurethane ionomer corrosion inhibitor: the effect of chain structure. RSC Adv 2011. [DOI: 10.1039/c1ra00021g] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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Singh NK, Das Purkayastha BP, Roy JK, Banik RM, Gonugunta P, Misra M, Maiti P. Tuned biodegradation using poly(hydroxybutyrate-co-valerate) nanobiohybrids: Emerging biomaterials for tissue engineering and drug delivery. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12427g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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