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  • Open Access

    REVIEW

    Utilization of Nanomaterials as Anode Modifiers for Improving Microbial Fuel Cells Performance

    Nishit Savla1, Raksha Anand2, Soumya Pandit2,*, Ram Prasad3,*

    Journal of Renewable Materials, Vol.8, No.12, pp. 1581-1605, 2020, DOI:10.32604/jrm.2020.011803

    Abstract Microbial fuel cells (MFCs) are an attractive innovation at the nexus of energy and water security for the future. MFC utilizes electrochemically active microorganisms to oxidize biodegradable substrates and generate bioelectricity in a single step. The material of the anode plays a vital role in increasing the MFC’s power output. The anode in MFC can be upgraded using nanomaterials providing benefits of exceptional physicochemical properties. The nanomaterials in anode gives a high surface area, improved electron transfer promotes electroactive biofilm. Enhanced power output in terms of Direct current (DC) can be obtained as the consequence of improved microbe-electrode interaction. However,… More >

  • Open Access

    ARTICLE

    Generalized Model of Blood Flow in a Vertical Tube with Suspension of Gold Nanomaterials: Applications in the Cancer Therapy

    Anees Imtiaz1, Oi-Mean Foong2, Aamina Aamina1, Nabeel Khan1, Farhad Ali3, 4, *, Ilyas Khan5

    CMC-Computers, Materials & Continua, Vol.65, No.1, pp. 171-192, 2020, DOI:10.32604/cmc.2020.011397

    Abstract Gold metallic nanoparticles are generally used within a lab as a tracer, to uncover on the presence of specific proteins or DNA in a sample, as well as for the recognition of various antibiotics. They are bio companionable and have properties to carry thermal energy to tumor cells by utilizing different clinical approaches. As the cancer cells are very smaller so for the infiltration, the properly sized nanoparticles have been injected in the blood. For this reason, gold nanoparticles are very effective. Keeping in mind the above applications, in the present work a generalized model of blood flow containing gold… More >

  • Open Access

    ABSTRACT

    Dual 3D Printing Hierarchical Nano/Micro Vascularized Bone Tissue

    Sung Yun Hann1, Haitao Cui1, Timothy Esworthy1, Xuan Zhou1, Se-jun Lee1, Lijie Grace Zhang1,2,3,4,*

    Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 76-76, 2019, DOI:10.32604/mcb.2019.07314

    Abstract The vascularization is the most significant to achieve efficient supplement of the nutrients and oxygen for tissue and organ regeneration. However, there is a remaining challenge to fabricate a durable and functional vascularized tissue. Currently, 3D printing has emerged as a promising technique to fabricate vascular networks in many studies due to its superior controllability, reproducibility, and repeatability. In the current study, the main objective is to utilize an advanced dual 3D printing technique including stereolithography (SLA) and fused deposition modeling (FDM) to create a biomimetic bone tissue with perfusable vascular networks. Specifically, the vascularized bone construct was fabricated by… More >

  • Open Access

    ABSTRACT

    Discrete Lattice Modeling of Atomistic Locations in the Interfaces Between Nanomaterials

    V.K. Tewary

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.4, pp. 113-114, 2011, DOI:10.3970/icces.2011.019.113

    Abstract Interfacial region between two nanomaterials can be treated as a separate material since its atomistic structure and characteristics are different than the two materials on its either side. The mechanical as well as electronic properties of composite materials are sensitive to the interfaces. For industrial application of the nanomaterial systems, it is vital to model and measure the discrete atomistic locations in the interface during operating conditions. As the dimensions of nanomaterial systems shrink, the role of interfaces become increasingly important. Because of its nanothickness, the conventional characterization and design parameters like elastic constants, stress and strains are not reliable… More >

  • Open Access

    ABSTRACT

    Structure-resolved properties of nanomaterials probed by in-situ TEM

    Xuedong Bai

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.18, No.3, pp. 73-74, 2011, DOI:10.3970/icces.2011.018.073

    Abstract The in-situ transmission electron microscopy (TEM) method has been developed to probe the novel properties of nanomateials. It is powerful in a way that it can directly correlate the microstructure of the nanomaterials with their physical properties for the same nanoscale sample. In this talk, I will report on the construction and applications of a home-made in-situ TEM platform for nanomanipulation and nanomeasurements.

    Mechanics and electromechanical coupling of individual nanowires have been studied inside TEM. The mechanism of resistance switching effects of nanoscale ionic conductors has been revealed by in-situ TEM high-resolution observation. And the transport properties of carbon… More >

  • Open Access

    ABSTRACT

    Carbon Nanotubes and graphenes: nanomaterials and nanodevices

    Chen Minjiang, Fang Yu, Huanchao Yang, Haiqing Zhou, Lianfeng Sun

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.18, No.1, pp. 25-26, 2011, DOI:10.3970/icces.2011.018.025

    Abstract Some of our recent experimental works on carbon nanotube and graphenes are presented in this work. There are mainly three parts, which are explained in more details as the followings:
    1. Single-walled carbon nanotube crystal: a new condensed form of SWNTs-crystal of SWNTs is obtained by using a series of diamond wire drawing dies. X-ray experiment indicates that the SWNTs arrange in a triangular lattice with a constant of 19.6 angstrom and the properties of SWNT crystal are studied.
    2. SWNT energy conversion devices and self-powered system: We show that the water inside SWNT can be driven to… More >

  • Open Access

    ABSTRACT

    Risk simulation of nanomaterials pollution in power engineering

    A.A.Bayramov1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.15, No.1, pp. 19-26, 2010, DOI:10.3970/icces.2010.015.019

    Abstract As we know, anthropogenic activities of Power Engineering create wastewater and air pollution, lead to aerosol attenuation of solar radiation and to growth of entropy on the Earth and, as result, climate change. The human Power activities disturb heat and entropy balance and impair ecology. Also, this leads to greenhouse effect and, as result, to climate change. Wastewater in river and sea basins as well as air pollution can influence an exchange of energy between sunlight on the Earth and long-wave radiation leaving in space.
    In the paper the role of nanomaterials pollution in Power Engineering is analyzed. We have… More >

  • Open Access

    ARTICLE

    Graphene-Based 3D Xerogel as Adsorbent for Removal of Heavy Metal Ions from Industrial Wastewater

    Purnendu, Soumitra Satapathi*

    Journal of Renewable Materials, Vol.5, No.2, pp. 96-102, 2017, DOI:10.7569/JRM.2016.634134

    Abstract Graphene-based 3D porous xerogel was designed through molecular self-assembly of graphene oxide on chitosan matrix and its application in removal of different heavy metal ions from wastewater was investigated. The synthesized xerogel was characterized through FTIR, SEM, XRD and BET surface area analysis. Heavy metal ions, including Pb(II), Cd(II), and Hg(II), were removed from wastewater using this graphene-chitosan (GO-Cs) xerogel and the removal efficiency was monitored through inductively coupled plasma mass spectrometry (ICP-MS). The effect of GO-Cs composition and pH on adsorption efficiency as well as the kinetics of adsorption was studied in detail. The study exhibited that this xerogel… More >

  • Open Access

    ARTICLE

    Cellulose Nanomaterials as Binders: Laminate and Particulate Systems

    Mehdi Tajvidi1*, Douglas J. Gardner2, Douglas W. Bousfield3

    Journal of Renewable Materials, Vol.4, No.5, pp. 365-376, 2016, DOI:10.7569/JRM.2016.634103

    Abstract A novel application of cellulose nanomaterials, particularly cellulose nanofibrils (CNF) as a binder in conventional and novel laminate and particulate composite systems is discussed. Using cellulose nanomaterials as a reinforcing agent in conventional polymer composites faces several difficulties: 1) there are no easy ways to dry the CNF and maintain nanoscale dimensions, 2) there are compatibility issues related to cellulose-polymer bonding, and 3) there are issues related to obtaining a good distribution and redispersion of nanoscale materials inside a polymer matrix. An alternative strategy is applications in which cellulose nanomaterials can be used in the aqueous suspension form without first… More >

  • Open Access

    REVIEW

    Opportunities for Cellulose Nanomaterials in Packaging Films: A Review and Future Trends

    Nicole M. Stark

    Journal of Renewable Materials, Vol.4, No.5, pp. 313-326, 2016, DOI:10.7569/JRM.2016.634115

    Abstract Performance requirements for packaging films may include barrier properties, transparency, flexibility, and tensile strength. Conventional packaging materials, such as plastic films and laminates, are typically made from petroleum-based polymers. Currently, there is a drive to develop sustainable packaging materials. These alternative materials must be able to be manufactured economically and on a commercial scale, exhibit barrier properties and transparency, and provide adequate mechanical performance. As a biobased, renewable material, cellulose nanomaterials (CNs) are ideally suited to be used in sustainable packaging applications. CNs include cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) and each can provide benefit to packaging films. Manufactured… More >

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