Molecular modeling of multilayer cellular and tissue engineering structures based on a wireframe of carbon nanotubes and protein matrix for restoring the tissues of the heart and blood vessels

2019 ◽  
Author(s):  
Olga E. Glukhova ◽  
Dmitriy S. Shmygin
Keyword(s):  
Carbon Nanotubes ◽  
Tissue Engineering ◽  
Molecular Modeling ◽  
Blood Vessels ◽  
Protein Matrix ◽  
Engineering Structures

Enhanced osteogenic potential of unzipped carbon nanotubes for tissue engineering

2021 ◽  
Author(s):  
Dinesh K. Patel ◽  
Sayan Deb Dutta ◽  
Keya Ganguly ◽  
Jin‐Woo Kim ◽  
Ki‐Taek Lim
Keyword(s):  
Carbon Nanotubes ◽  
Tissue Engineering ◽  
Osteogenic Potential

Scaffolds in tissue engineering of blood vessels

2010 ◽  
Vol 88 (9) ◽  
pp. 855-873 ◽  
Author(s):  
Divya Pankajakshan ◽  
Devendra K. Agrawal
Keyword(s):  
Tissue Engineering ◽  
Extracellular Matrix ◽  
Blood Vessels ◽  
Vascular Tissue ◽  
Small Diameter ◽  
Biological Scaffolds ◽  
Hemodynamic Forces ◽  
Biodegradable Scaffolds

Tissue engineering of small diameter (<5 mm) blood vessels is a promising approach for developing viable alternatives to autologous vascular grafts. It involves in vitro seeding of cells onto a scaffold on which the cells attach, proliferate, and differentiate while secreting the components of extracellular matrix that are required for creating the tissue. The scaffold should provide the initial requisite mechanical strength to withstand in vivo hemodynamic forces until vascular smooth muscle cells and fibroblasts reinforce the extracellular matrix of the vessel wall. Hence, the choice of scaffold is crucial for providing guidance cues to the cells to behave in the required manner to produce tissues and organs of the desired shape and size. Several types of scaffolds have been used for the reconstruction of blood vessels. They can be broadly classified as biological scaffolds, decellularized matrices, and polymeric biodegradable scaffolds. This review focuses on the different types of scaffolds that have been designed, developed, and tested for tissue engineering of blood vessels, including use of stem cells in vascular tissue engineering.

Application of Carbon Nanotubes in Cartilage Tissue Engineering

2008 ◽  
Author(s):  
Nadeen O. Chahine ◽  
Nicole M. Collette ◽  
Heather Thompson ◽  
Gabriela G. Loots
Keyword(s):  
Carbon Nanotubes ◽  
Tissue Engineering ◽  
Cartilage Tissue Engineering ◽  
Cellular Systems ◽  
Cellular Growth ◽  
Cartilage Tissue ◽  
Chondrocyte Viability ◽  
Structural Reinforcement ◽  
Surgical Implants ◽  
Novel Material

Carbon nanotubes (CNTs) are cylindrical allotropes of carbon that are nanometers in diameter and posses unique physical properties, positioning them as ideal materials for studying physiology at a single cell level. CNTs have the potential to become a very important component of medical therapeutics, likely acting as (a) drug delivery system [1], (b) existing as an interfacial layer in surgical implants [2,3], or (c) acting as scaffolding in tissue engineering [4,8]. While some studies have explored the use of CNTs as a novel material in regenerative medicine, they have not yet been fully evaluated in cellular systems. One major limitation of CNTs that must be overcome is their inherent cytotoxicity. The goal of this study is to assess the long-term biocompatibility of CNTs for chondrocyte growth. We hypothesize that CNT-based material in tissue engineering can provide an improved molecular sized substrate for stimulation of cellular growth, and structural reinforcement of the scaffold mechanical properties. Here we present data on the effects of CNTs on chondrocyte viability and biochemical deposition examined in composite materials of hydrogels + CNTs mixtures. Also, the effects of CNTs surface functionalization with polyethlyne glycol (PEG) or carboxyl groups (COOH) were examined.

scholarly journals Carbon nanotubes and their polymeric composites: the applications in tissue engineering

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Boyang Huang
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Tissue Engineering ◽  
Bone Tissue ◽  
Biomedical Applications ◽  
Chemical Properties ◽  
Polymeric Composites ◽  
Biological Properties ◽  
Engineering Applications ◽  
Toxicity Effects

Abstract Carbon nanotubes (CNTs), with unique graphitic structure, superior mechanical, electrical, optical and biological properties, has attracted more and more interests in biomedical applications, including gene/drug delivery, bioimaging, biosensor and tissue engineering. In this review, we focus on the role of CNTs and their polymeric composites in tissue engineering applications, with emphasis on their usages in the nerve, cardiac and bone tissue regenerations. The intrinsic natures of CNTs including their physical and chemical properties are first introduced, explaining the structure effects on CNTs electrical conductivity and various functionalization of CNTs to improve their hydrophobic characteristics. Biosafety issues of CNTs are also discussed in detail including the potential reasons to induce the toxicity and their potential strategies to minimise the toxicity effects. Several processing strategies including solution-based processing, polymerization, melt-based processing and grafting methods are presented to show the 2D/3D construct formations using the polymeric composite containing CNTs. For the sake of improving mechanical, electrical and biological properties and minimising the potential toxicity effects, recent advances using polymer/CNT composite the tissue engineering applications are displayed and they are mainly used in the neural tissue (to improve electrical conductivity and biological properties), cardiac tissue (to improve electrical, elastic properties and biological properties) and bone tissue (to improve mechanical properties and biological properties). Current limitations of CNTs in the tissue engineering are discussed and the corresponded future prospective are also provided. Overall, this review indicates that CNTs are promising “next-generation” materials for future biomedical applications.

Carbon nanotubes in scaffolds for tissue engineering

2009 ◽  
Vol 6 (5) ◽  
pp. 499-505 ◽  
Author(s):  
Sharon L Edwards ◽  
Jerome A Werkmeister ◽  
John AM Ramshaw
Keyword(s):  
Carbon Nanotubes ◽  
Tissue Engineering
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