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International Journal of Bioprinting                                   Biomaterials with antibacterial agents




            Table 3. Antibacterial compounds and their representative functional biomaterials for skin wound healing.
             Functional materials     Antibacterial   Outcomes             Mechanism                 References
                                      compounds
             Polycaprolactone-poly (propylene   AgNO 3  A significant decrease in the   Controlled infection by reducing   119
             succinate) (PCL-PPSu)                adhesion of different types of   microbial cell adhesion (less zone of
                                                  microorganisms on the scaffold  inhibition)
             Carboxymethyl chitosan (CMCS) /   CMCS  The scaffold demonstrates innate   Progressive antibacterial activity   120
             Polyethylenimine                     antimicrobial activity and can be   against E. coli and S. aureus
             (PEI) (CPH)                          exceptionally effective in promoting
                                                  wound healing, achieving 98.02%
                                                  wound closure in just 14 days.
             Poly(dimethylsiloxane) (PDMS)   Au nanostars   The films can preserve moisture,   Granulation tissue formation by   121
             / Poly(N-isopropylacrylamide)   (AuNS)  absorb exudate, transport cells,   enhancing blood circulation to
             (pNIPAM) / Au                        and bioactive substances. They also   increase blood flow, and increase
                                                  possess antibacterial activity against  the activity of cells, including
                                                  S. aureus-infected mice.  keratinocytes, fibroblasts, and other
                                                                           tissue-repairing cells, as well as
                                                                           enhancing antibacterial effects to
                                                                           reduce the risk of infection
             Oxidized dextran (ODEX) /   AMPs     Reduce the microbial cell   Inflammatory response by inhibiting   122
             antimicrobial peptide-modified       adherence in the inhibitory zones   the synthesis of pro-inflammatory
             hyaluronic acid (HA-AMP) / PRP       of Staphylococcus aureus and   factors (TNF-α, IL-1β, and IL-6),
                                                  Pseudomonas aeruginosa, indicating  increased the production of anti-
                                                  their substantial antibacterial   inflammatory factors (TGF-β1), and
                                                  properties.              promoted the production of VEGF
             Epigallocatechin-3-gallate (EGCG) /  EGCG  Impact the expression of proteins   Antimicrobial resistance. EGCG   123
             Phenylboronic acid (PBA) / PAM       involved in the creation of the   interacts with both hydrophilic and
                                                  bacterial cell membrane and prevent  hydrophobic regions and induce
                                                  DNA damage, cell signaling, and the  antimicrobial action, causing cell
                                                  biosynthesis of cell components.  membrane rupture and altering
                                                                           membrane fluidity.
             Silk fibroin methacryloyl (SFMA)-   Photodynamic   Demonstrate strong toxicity to S.   Antibacterial resistance. The   124
             chlorine e6 (Ce-6)       therapy (PDT;   aureus, successfully killing more   antibacterial effect of PDT is
                                      Ce6)        than 90% of S. aureus after 5 min of   mediated by the hydrogel-generated
                                                  exposure.                ROS, which targets the bacterial cell
                                                                           walls and membranes.
             Quaternized chitosan (QCS) /  QCS / PA@Fe  Display remarkable NIR-assisted   Infection control. The photothermal   125
              Protocatechualdehyde (PA) @         antibacterial efficacy against   capacity of the scaffold is leveraged
             Ferric ion (Fe)                      drug-resistant infections and both   to denature bacterial enzymes at
                                                  Gram-positive and Gram-negative   temperatures higher than 45°C.
                                                  bacteria.
             Bacterial cellulose nanofibers (BC-g-  BCD  A significant BCD concentration   Antibacterial resistance. Polymer   126
             pDADMAC, BCD) / Polydopamine         (>10%) exhibits a very potent and   brushes with positively charged
             / Poly acrylamide (PDA/PAM)          persistent antibacterial action.  quaternary ammonium groups
                                                                           grafted from BC nanofibers which are
                                                                           incorporated can impart antibacterial
                                                                           characteristics.
             Catechol-modified methacryloyl   Quinone groups   Display intrinsic contact-active   Antibacterial resistance by targeting   127
             chitosan (CMMC) / Methacryloyl   / amino groups  antibacterial properties, which   bacterial cells that approach the
             chitosan (MCs)                       lead to complete decimation of   scaffold’s catechol groups. specifically,
                                                  antibiotic-resistant bacteria upon   the bacterial cells can be captured
                                                  contacting the surface of hydrogels.  and destroyed by the quinone groups
                                                                           created by Fe  oxidation as well as
                                                                                   3+
                                                                           the protonated amino groups of the
                                                                           chitosan polymer
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            Volume 10 Issue 4 (2024)                        91                                doi: 10.36922/ijb.3372
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