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Chipara AC, Brunetto G, Ozden S, Haspel H, Kumbhakar P, Kukovecz Á, Kónya Z, Vajtai R, Chipara M, Galvao DS, Tiwary CS, Ajayan PM. Nature inspired solid-liquid phase amphibious adhesive. Soft Matter 2020; 16:5854-5860. [PMID: 32296796 DOI: 10.1039/d0sm00105h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report a new class of bio-inspired solid-liquid adhesive, obtained by simple mechanical dispersion of PVDF (polyvinylidene fluoride) (solid spheres) into PDMS (polydimethylsiloxane) (liquid). The adhesive behavior arises from strong solid-liquid interactions. This is a chemical reaction free adhesive (no curing time) that can be repeatedly used and is capable of instantaneously joining a large number of diverse materials (metals, ceramic, and polymer) in air and underwater. The current work is a significant advance in the development of amphibious multifunctional adhesives and presents potential applications in a range of sealing applications, including medical ones.
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Affiliation(s)
- Alin Cristian Chipara
- Department of Materials Science and Nano Engineering, Rice University, Houston, TX 77005, USA.
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Ribeiro H, Trigueiro JPC, Silva WM, Woellner CF, Owuor PS, Cristian Chipara A, Lopes MC, Tiwary CS, Pedrotti JJ, Villegas Salvatierra R, Tour JM, Chopra N, Odeh IN, Silva GG, Ajayan PM. Hybrid MoS 2/h-BN Nanofillers As Synergic Heat Dissipation and Reinforcement Additives in Epoxy Nanocomposites. ACS Appl Mater Interfaces 2019; 11:24485-24492. [PMID: 28920429 DOI: 10.1021/acsami.7b09945] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Two-dimensional (2D) nanomaterials as molybdenum disulfide (MoS2), hexagonal boron nitride (h-BN), and their hybrid (MoS2/h-BN) were employed as fillers to improve the physical properties of epoxy composites. Nanocomposites were produced in different concentrations and studied in their microstructure, mechanical and thermal properties. The hybrid 2D mixture imparted efficient reinforcement to the epoxy leading to increases of up to 95% in tensile strength, 60% in ultimate strain, and 58% in Young's modulus. Moreover, an enhancement of 203% in thermal conductivity was achieved for the hybrid composite as compared to the pure polymer. The incorporation of MoS2/h-BN mixture nanofillers in epoxy resulted in nanocomposites with multifunctional characteristics for applications that require high mechanical and thermal performance.
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Affiliation(s)
- Hélio Ribeiro
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
- Departamento de Química - Universidade Federal de Minas Gerais . Avenida Antônio Carlos, 6627, Pampulha , CEP 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - João Paulo C Trigueiro
- Departamento de Química - Universidade Federal de Minas Gerais . Avenida Antônio Carlos, 6627, Pampulha , CEP 31270-901 , Belo Horizonte , Minas Gerais , Brazil
- Instituto Federal de Minas Gerais , Campus Congonhas , Avenida Michael Pereira de Souza, 3007, Campinho , CEP 36415-000 Congonhas , Minas Gerais , Brazil
| | - Wellington M Silva
- Departamento de Química - Universidade Federal de Minas Gerais . Avenida Antônio Carlos, 6627, Pampulha , CEP 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Cristiano F Woellner
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
- Departamento de Física Aplicada , Universidade Estadual de Campinas , Rua Sérgio Buarque de Holanda, 777 , CEP 13083-859 Campinas , São Paulo , Brazil
| | - Peter S Owuor
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
| | - Alin Cristian Chipara
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
| | - Magnovaldo C Lopes
- Departamento de Química - Universidade Federal de Minas Gerais . Avenida Antônio Carlos, 6627, Pampulha , CEP 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Chandra S Tiwary
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
| | - Jairo J Pedrotti
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
- Centro de Pesquisas Avançadas em Grafeno, Nanomateriais e Nanotecnologias , Universidade Presbiteriana Mackenzie , Rua da Consolação, 930 , CEP 01302-907 , São Paulo , São Paulo , Brazil
| | | | - James M Tour
- Department of Chemistry , Rice University , 6100 Main Street , Houston , Texas 77005 , United States
| | - Nitin Chopra
- SABIC Americas Inc , Sugar Land , Texas 77478 , United States
| | - Ihab N Odeh
- SABIC Americas Inc , Sugar Land , Texas 77478 , United States
| | - Glaura G Silva
- Departamento de Química - Universidade Federal de Minas Gerais . Avenida Antônio Carlos, 6627, Pampulha , CEP 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Pulickel M Ajayan
- Department of Materials Science and Nanoengineering - Rice University . 6100 Main Street , Houston , Texas 77005 , United States
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Agrawal A, Chen H, Kim H, Zhu B, Adetiba O, Miranda A, Cristian Chipara A, Ajayan PM, Jacot JG, Verduzco R. Electromechanically Responsive Liquid Crystal Elastomer Nanocomposites for Active Cell Culture. ACS Macro Lett 2016; 5:1386-1390. [PMID: 35651216 DOI: 10.1021/acsmacrolett.6b00554] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Liquid crystal elastomers (LCEs) are unique among shape-responsive materials in that they exhibit large and reversible shape changes and can respond to a variety of stimuli. However, only a handful of studies have explored LCEs for biomedical applications. Here, we demonstrate that LCE nanocomposites (LCE-NCs) exhibit a fast and reversible electromechanical response and can be employed as dynamic substrates for cell culture. A two-step method for preparing conductive LCE-NCs is described, which produces materials that exhibit rapid (response times as fast at 0.6 s), large-amplitude (contraction by up to 30%), and fully reversible shape changes (stable to over 5000 cycles) under externally applied voltages (5-40 V). The electromechanical response of the LCE-NCs is tunable through variation of the electrical potential and LCE-NC composition. We utilize conductive LCE-NCs as responsive substrates to culture neonatal rat ventricular myocytes (NRVM) and find that NRVM remain viable on both stimulated and static LCE-NC substrates. These materials provide a reliable and simple route to materials that exhibit a fast, reversible, and large-amplitude electromechanical response.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jeffrey G. Jacot
- Congenital
Heart Surgery, Texas Children’s Hospital, Houston, Texas 77030, United States
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Ashokkumar M, Cristian Chipara A, Tharangattu Narayanan N, Anumary A, Sruthi R, Thanikaivelan P, Vajtai R, Mani SA, Ajayan PM. Three-Dimensional Porous Sponges from Collagen Biowastes. ACS Appl Mater Interfaces 2016; 8:14836-44. [PMID: 27219483 DOI: 10.1021/acsami.6b04582] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Three-dimensional, functional, and porous scaffolds can find applications in a variety of fields. Here we report the synthesis of hierarchical and interconnected porous sponges using a simple freeze-drying technique, employing collagen extracted from animal skin wastes and superparamagnetic iron oxide nanoparticles. The ultralightweight, high-surface-area sponges exhibit excellent mechanical stability and enhanced absorption of organic contaminants such as oils and dye molecules. Additionally, these biocomposite sponges display significant cellular biocompatibility, which opens new prospects in biomedical uses. The approach highlights innovative ways of transforming biowastes into advanced hybrid materials using simple and scalable synthesis techniques.
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Affiliation(s)
- Meiyazhagan Ashokkumar
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
| | - Alin Cristian Chipara
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
| | | | - Ayyappan Anumary
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
- Advanced Materials Laboratory, Centre for Leather Apparel & Accessories Development (CLAD), Central Leather Research Institute (Council of Scientific and Industrial Research) , Adyar, Chennai 600020, India
| | - Radhakrishnan Sruthi
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
| | - Palanisamy Thanikaivelan
- Advanced Materials Laboratory, Centre for Leather Apparel & Accessories Development (CLAD), Central Leather Research Institute (Council of Scientific and Industrial Research) , Adyar, Chennai 600020, India
| | - Robert Vajtai
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
| | - Sendurai A Mani
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center , Houston, Texas 77030, United States
| | - Pulickel M Ajayan
- Department of Materials Science & NanoEngineering, Rice University , Houston, Texas 77005, United States
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Dong P, Chipara AC, Loya P, Yang Y, Ge L, Lei S, Li B, Brunetto G, Machado LD, Hong L, Wang Q, Yang B, Guo H, Ringe E, Galvao DS, Vajtai R, Chipara M, Tang M, Lou J, Ajayan PM. Solid-Liquid Self-Adaptive Polymeric Composite. ACS Appl Mater Interfaces 2016; 8:2142-2147. [PMID: 26720058 DOI: 10.1021/acsami.5b10667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A solid-liquid self-adaptive composite (SAC) is synthesized using a simple mixing-evaporation protocol, with poly(dimethylsiloxane) (PDMS) and poly(vinylidene fluoride) (PVDF) as active constituents. SAC exists as a porous solid containing a near equivalent distribution of the solid (PVDF)-liquid (PDMS) phases, with the liquid encapsulated and stabilized within a continuous solid network percolating throughout the structure. The pores, liquid, and solid phases form a complex hierarchical structure, which offers both mechanical robustness and a significant structural adaptability under external forces. SAC exhibits attractive self-healing properties during tension, and demonstrates reversible self-stiffening properties under compression with a maximum of 7-fold increase seen in the storage modulus. In a comparison to existing self-healing and self-stiffening materials, SAC offers distinct advantages in the ease of fabrication, high achievable storage modulus, and reversibility. Such materials could provide a new class of adaptive materials system with multifunctionality, tunability, and scale-up potentials.
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Affiliation(s)
- Pei Dong
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Alin Cristian Chipara
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Phillip Loya
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Yingchao Yang
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Liehui Ge
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Sidong Lei
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Bo Li
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Gustavo Brunetto
- Applied Physics Department, State University of Campinas , Campinas-SP 13083-959, Brazil
| | - Leonardo D Machado
- Applied Physics Department, State University of Campinas , Campinas-SP 13083-959, Brazil
| | - Liang Hong
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Qizhong Wang
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Bilan Yang
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Hua Guo
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Emilie Ringe
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Douglas S Galvao
- Applied Physics Department, State University of Campinas , Campinas-SP 13083-959, Brazil
| | - Robert Vajtai
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Mircea Chipara
- Department of Physics and Geology, University of Texas-Pan American , 1201 West University Drive, Edinburg, Texas 78539, United States
| | - Ming Tang
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Jun Lou
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
| | - Pulickel M Ajayan
- Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States
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Ozden S, Tiwary CS, Hart AHC, Chipara AC, Romero-Aburto R, Rodrigues MTF, Taha-Tijerina J, Vajtai R, Ajayan PM. Density variant carbon nanotube interconnected solids. Adv Mater 2015; 27:1842-1850. [PMID: 25648691 DOI: 10.1002/adma.201404995] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 11/24/2014] [Indexed: 06/04/2023]
Affiliation(s)
- Sehmus Ozden
- Department of Material Science and Nano Engineering, Rice University, Houston, TX, 77005, USA
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Vinod S, Tiwary CS, da Silva Autreto PA, Taha-Tijerina J, Ozden S, Chipara AC, Vajtai R, Galvao DS, Narayanan TN, Ajayan PM. Low-density three-dimensional foam using self-reinforced hybrid two-dimensional atomic layers. Nat Commun 2014; 5:4541. [DOI: 10.1038/ncomms5541] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 06/26/2014] [Indexed: 11/09/2022] Open
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Lee S, Hahm MG, Vajtai R, Hashim DP, Thurakitseree T, Chipara AC, Ajayan PM, Hafner JH. Utilizing 3D SERS active volumes in aligned carbon nanotube scaffold substrates. Adv Mater 2012; 24:5261-6. [PMID: 22836924 DOI: 10.1002/adma.201200645] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 04/05/2012] [Indexed: 05/06/2023]
Affiliation(s)
- Seunghyun Lee
- Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77005, USA
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Chipara M, Hamilton J, Chipara AC, George T, Chipara DM, Ibrahim EE, Lozano K, Sellmyer DJ. Fourier transform infrared spectroscopy and wide-angle X-ray scattering: Investigations on polypropylene-vapor-grown carbon nanofiber composites. J Appl Polym Sci 2011. [DOI: 10.1002/app.35576] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chipara M, Villarreal JR, Chipara MD, Lozano K, Chipara AC, Sellmyer DJ. Spectroscopic investigations on polypropylene-carbon nanofiber composites. I. Raman and electron spin resonance spectroscopy. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21766] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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