Nanofibrous Substrate For Tissue Engineering Applications—A Review

2021 ◽  
Vol 8 (6) ◽  
pp. 13-21
Author(s):  
Odia Osemwegie ◽  
Lihua Lou ◽  
Ernest Smith ◽  
Seshadri Ramkumar
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Cell Culture ◽  
Tissue Regeneration ◽  
Biomedical Applications ◽  
High Volume ◽  
Clinical Applications ◽  
Critical Factors ◽  
Engineering Applications

Nanofiber substrates have been used for various biomedical applications, including tissue regeneration, drug delivery, and in-vitro cell culture. However, despite the high volume of studies in this field, current clinical applications remain minimal. Innovations for their applications continuously generate exciting prospects. In this review, we discuss some of these novel innovations and identify critical factors to consider before their adoption for biomedical applications.

scholarly journals Electrospinning of Nanofibers for Tissue Engineering Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Haifeng Liu ◽  
Xili Ding ◽  
Gang Zhou ◽  
Ping Li ◽  
Xing Wei ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Tissue Regeneration ◽  
Biomedical Applications ◽  
Fiber Morphology ◽  
Hard Tissue ◽  
Nanoscale Material ◽  
Considerable Potential ◽  
Recent Interest ◽  
Material Fabrication

Electrospinning is a method in which materials in solution are formed into nano- and micro-sized continuous fibers. Recent interest in this technique stems from both the topical nature of nanoscale material fabrication and the considerable potential for use of these nanoscale fibres in a range of applications including, amongst others, a range of biomedical applications processes such as drug delivery and the use of scaffolds to provide a framework for tissue regeneration in both soft and hard tissue applications systems. The objectives of this review are to describe the theory behind the technique, examine the effect of changing the process parameters on fiber morphology, and discuss the application and impact of electrospinning on the fields of vascular, neural, bone, cartilage, and tendon/ligament tissue engineering.

scholarly journals Development of Synthetic and Natural Materials for Tissue Engineering Applications Using Adipose Stem Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Yunfan He ◽  
Feng Lu
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Tissue Regeneration ◽  
Large Scale ◽  
Clinical Applications ◽  
Adipose Stem Cells ◽  
Laboratory Research ◽  
Engineering Applications ◽  
Plastic And Reconstructive Surgery ◽  
Relative Ease

Adipose stem cells have prominent implications in tissue regeneration due to their abundance and relative ease of harvest from adipose tissue and their abilities to differentiate into mature cells of various tissue lineages and secrete various growth cytokines. Development of tissue engineering techniques in combination with various carrier scaffolds and adipose stem cells offers great potential in overcoming the existing limitations constraining classical approaches used in plastic and reconstructive surgery. However, as most tissue engineering techniques are new and highly experimental, there are still many practical challenges that must be overcome before laboratory research can lead to large-scale clinical applications. Tissue engineering is currently a growing field of medical research; in this review, we will discuss the progress in research on biomaterials and scaffolds for tissue engineering applications using adipose stem cells.

Effects of 3D-bioplotted polycaprolactone scaffold geometry on human adipose-derived stem cell viability and proliferation

2017 ◽  
Vol 23 (3) ◽  
pp. 534-542 ◽  
Author(s):  
Saahil V. Mehendale ◽  
Liliana F. Mellor ◽  
Michael A. Taylor ◽  
Elizabeth G. Loboa ◽  
Rohan A. Shirwaiker
Keyword(s):  
Tissue Engineering ◽  
Cell Culture ◽  
Stem Cell ◽  
Pore Size ◽  
Compression Modulus ◽  
Engineering Applications ◽  
Content Type ◽  
Musculoskeletal Tissue ◽  
Adipose Derived Stem Cell

Purpose This study aims to investigate the effect of three-dimensional (3D)- bioplotted polycaprolactone (PCL) scaffold geometry on the biological and mechanical characteristics of human adipose-derived stem cell (hASC) seeded constructs. Design/methodology/approach Four 3D-bioplotted scaffold disc designs (Ø14.5 × 2 mm) with two levels of strand–pore feature sizes and two strand laydown patterns (0°/90° or 0°/120°/240°) were evaluated for hASC viability, proliferation and construct compressive stiffness after 14 days of in vitro cell culture. Findings Scaffolds with the highest porosity (smaller strand–pore size in 0°/120°/240°) yielded the highest hASC proliferation and viability. Further testing of this design in a 6-mm thick configuration showed that cells were able to penetrate and proliferate throughout the scaffold thickness. The design with the lowest porosity (larger strand–pore size in 0°/90°) had the highest compression modulus after 14 days of culture, but resulted in the lowest hASC viability. The strand laydown pattern by itself did not influence the compression modulus of scaffolds. The 14-day cell culture also did not cause significant changes in compressive properties in any of the four designs. Originality/value hASC hold great potential for musculoskeletal tissue engineering applications because of their relative ease of harvest, abundance and differentiation abilities. This study reports on the effects of 3D-bioplotted scaffold geometry on mechanical and biological characteristics of hASC-seeded PCL constructs. The results provide the basis for future studies which will use this optimal scaffold design to develop constructs for hASC-based osteochondral tissue engineering applications.

Fluoropolymers in biomedical applications: state-of-the-art and future perspectives

2021 ◽  
Author(s):  
Jia Lv ◽  
Yiyun Cheng
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Cell Culture ◽  
Gene Delivery ◽  
Bacterial Cell ◽  
Protein Delivery ◽  
Biomedical Applications ◽  
State Of The Art ◽  
Future Perspectives

Biomedical applications of fluoropolymers in gene delivery, protein delivery, drug delivery, 19F MRI, PDT, anti-fouling, anti-bacterial, cell culture, and tissue engineering.

scholarly journals Efficacy of Bacterial Nanocellulose in Hard Tissue Regeneration: A Review

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4777
Author(s):  
Anuj Kumar ◽  
Sung-Soo Han
Keyword(s):  
Tissue Engineering ◽  
Tissue Regeneration ◽  
Cellular Response ◽  
Future Research ◽  
Hydroxyl Groups ◽  
Hard Tissue ◽  
Engineering Applications ◽  
Bacterial Nanocellulose

Bacterial nanocellulose (BNC, as exopolysaccharide) synthesized by some specific bacteria strains is a fascinating biopolymer composed of the three-dimensional pure cellulosic nanofibrous matrix without containing lignin, hemicellulose, pectin, and other impurities as in plant-based cellulose. Due to its excellent biocompatibility (in vitro and in vivo), high water-holding capacity, flexibility, high mechanical properties, and a large number of hydroxyl groups that are most similar characteristics of native tissues, BNC has shown great potential in tissue engineering applications. This review focuses on and discusses the efficacy of BNC- or BNC-based biomaterials for hard tissue regeneration. In this review, we provide brief information on the key aspects of synthesis and properties of BNC, including solubility, biodegradability, thermal stability, antimicrobial ability, toxicity, and cellular response. Further, modification approaches are discussed briefly to improve the properties of BNC or BNC-based structures. In addition, various biomaterials by using BNC (as sacrificial template or matrix) or BNC in conjugation with polymers and/or fillers are reviewed and discussed for dental and bone tissue engineering applications. Moreover, the conclusion with perspective for future research directions of using BNC for hard tissue regeneration is briefly discussed.

Vascular Tissue Regeneration of the Hybrid ePTFE Graft for Adult Patients

2005 ◽  
Vol 288-289 ◽  
pp. 55-58 ◽  
Author(s):  
In Sup Noh
Keyword(s):  
Tissue Engineering ◽  
Cell Culture ◽  
Tissue Regeneration ◽  
Vascular Graft ◽  
Vascular Tissue ◽  
Vascular Tissue Engineering ◽  
Tissue Formation ◽  
High Demand ◽  
Eptfe Graft

Vascular Tissue engineering has drawn high interest due to its high demand in its vascular graft applications. We tissue-engineered a hybrid vascular graft consisting of tissues layers and non-biodegradable ePTFE by in vitro cell culture. Tissue formation was obtained by culturing vascular smooth muscle cells on the biodegradable polylactide scaffolds on the ePTFE surfaces. The fabricated hybrid ePTFE graft consisted of three layers, i.e. two biodegradable polylactide layers and a non-biodegradable ePTFE layer. The biodegradable layer was fabricated to have a porous structure with 30-60 µm pore sizes. Connection of biodegradable layers and ePTFE was obtained by filtering the polylactide solution through the porous ePTFE wall. For a better tissue formation coating of gelatin was performed on the luminal polylactide scaffolds. The generated tissues replaced the biodegradable layers on both inside and outside surfaces of the ePTFE.

Electrosprayed nanoparticles and electrospun nanofibers based on natural materials: applications in tissue regeneration, drug delivery and pharmaceuticals

2015 ◽  
Vol 44 (3) ◽  
pp. 790-814 ◽  
Author(s):  
Radhakrishnan Sridhar ◽  
Rajamani Lakshminarayanan ◽  
Kalaipriya Madhaiyan ◽  
Veluchamy Amutha Barathi ◽  
Keith Hsiu Chin Lim ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Tissue Regeneration ◽  
Electrospun Nanofibers ◽  
Natural Polymers ◽  
Engineering Applications ◽  
Natural Materials

The role of electrospun and electrosprayed natural polymers or drug ingredients for pharmaceutical and tissue engineering applications is presented in this review.

scholarly journals Fibroblast Growth Factor 2—A Review of Stabilisation Approaches for Clinical Applications

Pharmaceutics ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 508
Author(s):  
Leah Benington ◽  
Gunesh Rajan ◽  
Cornelia Locher ◽  
Lee Yong Lim
Keyword(s):  
Tissue Engineering ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Current Knowledge ◽  
Physical Adsorption ◽  
Clinical Applications ◽  
Fibroblast Growth ◽  
Engineering Applications

Basic fibroblast growth factor (FGF)-2 has been shown to regulate many cellular functions including cell proliferation, migration, and differentiation, as well as angiogenesis in a variety of tissues, including skin, blood vessel, muscle, adipose, tendon/ligament, cartilage, bone, tooth, and nerve. These multiple functions make FGF-2 an attractive component for wound healing and tissue engineering constructs; however, the stability of FGF-2 is widely accepted to be a major concern for the development of useful medicinal products. Many approaches have been reported in the literature for preserving the biological activity of FGF-2 in aqueous solutions. Most of these efforts were directed at sustaining FGF-2 activity for cell culture research, with a smaller number of studies seeking to develop sustained release formulations of FGF-2 for tissue engineering applications. The stabilisation approaches may be classified into the broad classes of ionic interaction modification with excipients, chemical modification, and physical adsorption and encapsulation with carrier materials. This review discusses the underlying causes of FGF-2 instability and provides an overview of the approaches reported in the literature for stabilising FGF-2 that may be relevant for clinical applications. Although efforts have been made to stabilise FGF-2 for both in vitro and in vivo applications with varying degrees of success, the lack of comprehensive published stability data for the final FGF-2 products represents a substantial gap in the current knowledge, which has to be addressed before viable products for wider tissue engineering applications can be developed to meet regulatory authorisation.

Engineering β-sheet peptide assemblies for biomedical applications

2016 ◽  
Vol 4 (3) ◽  
pp. 365-374 ◽  
Author(s):  
Zhiqiang Yu ◽  
Zheng Cai ◽  
Qiling Chen ◽  
Menghua Liu ◽  
Ling Ye ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Cell Culture ◽  
Biomedical Applications ◽  
Β Sheet

Hydrogels have been widely studied in various biomedical applications, such as tissue engineering, cell culture, immunotherapy and vaccines, and drug delivery.

Synthetic biodegradable elastomers for drug delivery and tissue engineering

2010 ◽  
Vol 83 (1) ◽  
pp. 9-24 ◽  
Author(s):  
Christopher J. Bettinger
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Clinical Applications ◽  
Materials Synthesis ◽  
Processing Property ◽  
Tissue Engineering Scaffolds ◽  
Wide Range ◽  
Recent Developments ◽  
Engineered Substrates

Synthetic biodegradable elastomers are an emerging class of materials with many potential clinical applications including drug delivery and tissue engineering. Biodegradable elastomers offer advantages of structure diversity, tunable properties, and a wide range of processing capabilities. This review highlights some recent developments in various aspects of biodegradable materials synthesis, characterization, and processing with a specific focus on structure-processing–property relationships. Biodegradation mechanisms and issues regarding tissue biocompatibility of these materials are discussed. Applications of synthetic biodegradable elastomers, including use as a materials platform for controlled release systems, tissue engineering scaffolds, and engineered substrates for in vitro cell–biomaterials interactions will also be presented.

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