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. 2024 Sep 16;9(40):41107–41129. doi: 10.1021/acsomega.4c04961

Table 1. Examples of Silver Nanoparticles in 3D Printing for the Purpose of Wound Healing.

Chemical information Morphological structure Mechanical properties Functional Antibacterial properties Results Ref
The presence of AgNPs in the hydrophobic layer The hydrophilic layer had a nonwoven structure, while the hydrophobic layer had a 3D scaffold structure with different patterns The knit-like pattern of the hydrophobic layer exhibited the best mechanical performance among the four patterns The bilayer membrane had efficient directional-water-transport performance and excellent moisture management capability The bilayer membrane had high antibacterial activity against E. coli and S. aureus due to the presence of AgNPs in the hydrophobic layer These results demonstrate the potential of the bilayer membrane as a promising wound dressing for joint wounds (65)
Made from Na-ALG, PVA, and Cu–Ag MBGNs Porous structure with uniform elemental composition Good strength and 45% ductility Hydrophilic, biodegradable, and cytocompatible Effective against S. aureus and E. coli Promising for skin regeneration and wound healing (66)
Scaffold made from polyurethane, Pluronic F127, quaternized chitosan, silver nitrate, mupirocin, pectin, and keratin Three-layer structure with a top layer of polyurethane nanofibers, a middle layer of 3D-printed Pluronic F127-quaternized chitosan-silver nitrate, and a bottom layer of core–shell nanofibers of F127-mupirocin/pectin-keratin Good mechanical properties with moderate tensile strength and elastic modulus High swelling ratio and sustained release of Ag ions and mupirocin Enhanced antibacterial activity against both Gram-positive and Gram-negative bacteria Supported cell adhesion and viability, promoted angiogenesis, and accelerated wound healing in vitro and in vivo (44)
RHCMA, HAMA, and AgNCs Porous, interconnected network Elastic modulus of 10R3H100Ag: 0.25 MPa UV-responsive, shear-thinning, biocompatible Effective against S. aureus and P. aeruginosa Promoted wound healing in diabetic rats (67)
PGSA prepolymer 3D-printed scaffolds and conduits Swelling ratio, degradation rate, mass loss Electrical conductivity Cell viability, proliferation, guidance PGSA–PVP showed the best electrical conductivity, biodegradability, and biocompatibility among the PGSA composites. PGSA composites with microgrooves and electrical stimulation enhanced cell growth and alignment. PGSA–PVP conduits showed potential for nerve tissue regeneration (49)
PCL modified with plasma polymer and AgNPs 3D-printed scaffolds with interconnected pores and uniform distribution of AgNPs Increased hardness and modulus compared to unmodified PCL Improved hydrophilicity and biocompatibility Effective against S. epidermidis and P. aeruginosa Enhanced wound healing and angiogenesis in vivo (59)
CNC/Chit-MA hydrogel with different ratios of CCNC to CChit-MA Fibrillar structure with controlled pore size, dependent on ratio Compression Young’s modulus decreased with increasing ratio Shear-thinning and self-healing properties, water vapor transmission rate of 3210 ± 380 g/m2·24 h, high swelling ratio Loaded with gentamicin or AgNPs for antibacterial activity against S. aureus and P. aeruginosa Effective release of biologically active agents, biocompatible, improved wound healing in mice (64)
AgNPs synthesized by UV irradiation method using silver nitrate as precursor and PLA as stabilizer AgNPs have spherical shape and size ranging from 20 to 50 nm depending on UV exposure time Similar thermal transitions in PLA and PLA/Ag Increased hydrophilicity with AgNPs Not investigated Nontoxic, efficient, cost-effective method for biomedical applications (68)
Silver–ethylene interaction: Ag ions chelate with MBAM monomers to form organometallic complexes, which are reduced to AgNPs in hydrogel matrix Superporous hydrogels: prepared by using 3D-printed PLA templates and HPMC as pore-making materials Mechanical strength: decreased with increasing AgNP content and porosity Water uptake capacity: increased with increasing AgNP content and porosity Increased with increasing AgNP content; effective against S. aureus and E. coli Wound healing: AgNP cross-linked superporous hydrogel dressings promoted wound healing and reduced scar tissue formation in vivo (69)
Ti6Al4V alloy, titanate nanowires, silk fibrin, AgNPs Hierarchical porous structure, multilayered silk-on-silk assembly, Ag core/SF corona micelles Adjustable elastic modulus and strength, sufficient space for bone and blood vessel ingrowth Hydrophilic, protein-adsorbing, bioactive, osteoconductive, osteoinductive Sustained Ag+ release, ROS production, surface nanostructure effects Reduced bacterial adhesion and viability, enhanced cell proliferation and differentiation, improved bone regeneration (70)
AgNPs coated on 3D PEEK scaffold via pDA nanolayer AgNPs uniformly anchored on the surface with diameter of 100 nm; 33.59% porosity of 3D PEEK scaffold No significant difference in elastic modulus among pure and modified 3D PEEK scaffolds AgNPs endowed 3D PEEK scaffold with bioactivity and osteogenic differentiation 3D PEEK/Ag (1 mM) scaffold showed significant antibacterial effect and antibiofilm formation against E. coli and S. aureus 3D PEEK/Ag (1 mM) scaffold had good cytocompatibility and osteo-differentiation and could be a potential material for bone repair (63)