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Uncovering 3D bioprinting research trends: A keyword network mapping analysis

papers (2000–2017) was developed based on individual table 7. Most frequent keywords related to bioprinting techniques,
APYs with the same range as before (2011–2016). cell sources, and tissue/organs in APY 2014.
Tables 4–9 show that for techniques, cell sources, and Bioprinting
tissue/organs, the most frequently occurring keywords aPY techniques cell sources tissue/organs
(Occurrences)
2014
(Occurrences)
respectively in APY 2011 were ‘Electrospinning’ (Occurrences)
(12 occurrences), ‘Bone Marrow Stromal Cell’ (26 1 ‘Inkjet Printing’ ‘Human Mesenchymal ‘Liver’ (84)
Stem Cell’ (HMSC)
occurrences), and ‘Skeletal Muscle’ (34 occurrences); in (30) (78)
APY 2012, ‘Inkjet Printer’ (10 occurrences), ‘Fibroblast ‘Mesenchymal Stem
Cell’ (17 occurrences), and ‘Graft’ (113 occurrences); 2 Cell’ (MSC) (60) ‘Bone Matrix’ (34)
in APY 2013, ‘Inkjet’ (26 occurrences), ‘Mesenchymal
Stem Cells’ (MSC) (132 occurrences), and ‘Organ’ 3 ‘Human Mesenchymal ‘Bone Graft’ (33)
Stem Cell’ (50)
table 4. Most frequent keywords related to bioprinting tech- 4 ‘Pluripotent Stem Cell’ ‘Cardiac Tissue
niques, cell sources, and tissue/organs in APY 2011. (30) Engineering’ (19)
Bioprinting 5 ‘Human Umbilical Vein
Endothelial Cell’ (23)
aPY techniques cell sources tissue/organs
2011 (Occurrences) (Occurrences) (Occurrences)
table 8. Most frequent keywords related to bioprinting tech-
‘Electrospinning ‘Bone Marrow niques, cell sources, and tissue/organs in APY 2015.
1 Technique’ (12) Stromal Cell’ (26) ‘Skeletal Muscle’ (34)
aPY Bioprinting cell sources tissue/organs
2 ‘Calcium ‘Embryonic Stem ‘Bone Construct’ (28) 2015 techniques (Occurrences) (Occurrences)
(Occurrences)
Deposition’ (11)
Cell’ (25)
3 ‘Bone Cell’ (21) ‘Bone Structure’ (25) 1 ‘Extrusion’ (59) ‘Human Adipose ‘Cartilage
Stem Cell’ (HASC)
‘Neovascularization’ Regeneration’ (30)
4 (22)
(23) ‘Human Adipose’ ‘Cartilage Repair’
5 ‘Xenograft’ (12) 2 ‘Binder’ (30) (15) (30)
‘Human Pluripotent ‘Cartilage Construct’
table 5. Most frequent keywords related to bioprinting tech- 3 ‘SLM’ (11) Stem Cell’ (14) (33)
niques, cell sources, and tissue/organs in APY 2012.
4 ‘Microtissue’ (19)
aPY Bioprinting cell sources tissue/organs 5 ‘Neural Tissue
2012 techniques (Occurrences) (Occurrences) Engineering’ (18)
(Occurrences)
1 ‘Inkjet Printer’ (10) ‘Fibroblast Cell’ (17) ‘Graft’ (113) table 9. Most frequent keywords related to bioprinting techniques,
‘Human Bone Marrow cell sources, and tissue/organs in APY 2016.
2 Derived Mesenchymal ‘Muscle’ (65) Bioprinting
Stem Cell’ (HBMSC) aPY cell sources tissue/organs
(16) 2016 techniques (Occurrences) (Occurrences)
3 ‘Stem Cell’ (12) ‘Heart’ (61) (Occurrences)* ‘Adipose Derived
4 ‘Adult Stem Cell’ (11) ‘Lung’ (34) 1 Stem Cell’ (ADSC) ‘Organoids’ (29)
5 ‘Cardiac Cell’ (27) (21)
‘Induced Pluripotent
2 Stem Cell’ (IPSC)
table 6. Most frequent keywords related to bioprinting tech- (17)
niques, cell sources, and tissue/organs in APY 2013. ‘Human Adipose
3 Derived Cell’ (13)
aPY Bioprinting cell sources tissue/organs
2013 techniques (Occurrences) (Occurrences) 4 ‘Human Pluripotent
Stem Cell’ (11)
(Occurrences)
‘Mesenchymal ‘Induced Pluripotent
1 ‘Inkjet’ (26) Stem Cell’ (MSC) ‘Organ’ (430) 5 Stem Cell’ (iPSCS)
(132) (11)
‘Photon
2 Polymerization’ ‘Progenitor Cell’ ‘Bone Tissue *Note: No keywords were found related to 3D printing techniques as the
(20) (88) Engineering’ (148)
‘Bone Marrow number of keywords was scarce for this APY.
3 ‘Selective Laser Derived ‘Vessel’ (142)
Sintering’ (12) Mesenchymal Stem (430 occurrences); in APY 2014, ‘Inkjet Printing’
Cells’ (BMSC) (54) (30 occurrences), ‘Human Mesenchymal Stem Cells’
4 ‘Calcium ‘Stromal Cell’ (47) ‘Cartilage Tissue (HMSC) (78 occurrences), and ‘Liver’ (84 occurrences);
Deposition’ (11)
Engineering’ (74)
‘Electrospinning ‘Bone Marrow and in APY 2015, ‘Extrusion’ (59 occurrences), ‘Human
5 Mesenchymal Stem ‘Bone Tissue’ (53) Adipose Stem Cells’ (HASC) (22 occurrences), and
Process’ (11) Cell’ (33)
6 International Journal of Bioprinting (2018)–Volume 4, Issue 2