PMID- 38305576 OWN - NLM STAT- MEDLINE DCOM- 20240215 LR - 20240215 IS - 2050-7518 (Electronic) IS - 2050-750X (Linking) VI - 12 IP - 7 DP - 2024 Feb 14 TI - Injectable and self-healable nano-architectured hydrogel for NIR-light responsive chemo- and photothermal bacterial eradication. PG - 1905-1925 LID - 10.1039/d3tb02693k [doi] AB - Hydrogels with multifunctional properties activated at specific times have gained significant attention in the biomedical field. As bacterial infections can cause severe complications that negatively impact wound repair, herein, we present the development of a stimuli-responsive, injectable, and in situ-forming hydrogel with antibacterial, self-healing, and drug-delivery properties. In this study, we prepared a Pluronic F-127 (PF127) and sodium alginate (SA)-based hydrogel that can be targeted to a specific tissue via injection. The PF127/SA hydrogel was incorporated with polymeric short-filaments (SFs) containing an anti-inflammatory drug - ketoprofen, and stimuli-responsive polydopamine (PDA) particles. The hydrogel, after injection, could be in situ gelated at the body temperature, showing great in vitro stability and self-healing ability after 4 h of incubation. The SFs and PDA improved the hydrogel injectability and compressive strength. The introduction of PDA significantly accelerated the KET release under near-infrared light exposure and extended its release validity period. The excellent composites' photo-thermal performance led to antibacterial activity against representative Gram-positive and Gram-negative bacteria, resulting in 99.9% E. coli and S. aureus eradication after 10 min of NIR light irradiation. In vitro, fibroblast L929 cell studies confirmed the materials' biocompatibility and paved the way toward further in vivo and clinical application of the system for chronic wound treatments. FAU - Rybak, Daniel AU - Rybak D AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. FAU - Rinoldi, Chiara AU - Rinoldi C AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. FAU - Nakielski, Pawel AU - Nakielski P AUID- ORCID: 0000-0001-6194-701X AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. FAU - Du, Jingtao AU - Du J AD - Innovation Center for Textile Science and Technology, Collage of Textiles, Donghua University, Shanghai 201620, China. FAU - Haghighat Bayan, Mohammad Ali AU - Haghighat Bayan MA AUID- ORCID: 0000-0003-2912-7163 AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. FAU - Zargarian, Seyed Shahrooz AU - Zargarian SS AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. FAU - Pruchniewski, Michal AU - Pruchniewski M AUID- ORCID: 0000-0003-1511-584X AD - Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw 02-787, Poland. FAU - Li, Xiaoran AU - Li X AUID- ORCID: 0000-0002-6675-8709 AD - Innovation Center for Textile Science and Technology, Collage of Textiles, Donghua University, Shanghai 201620, China. FAU - Strojny-Cieslak, Barbara AU - Strojny-Cieslak B AD - Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw 02-787, Poland. FAU - Ding, Bin AU - Ding B AUID- ORCID: 0000-0003-1499-2154 AD - Innovation Center for Textile Science and Technology, Collage of Textiles, Donghua University, Shanghai 201620, China. FAU - Pierini, Filippo AU - Pierini F AUID- ORCID: 0000-0002-6526-4141 AD - Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland. fpierini@ippt.pan.pl. LA - eng PT - Journal Article DEP - 20240214 PL - England TA - J Mater Chem B JT - Journal of materials chemistry. B JID - 101598493 RN - 0 (Anti-Bacterial Agents) RN - 0 (Hydrogels) SB - IM MH - *Anti-Bacterial Agents/pharmacology MH - *Hydrogels/pharmacology MH - Staphylococcus aureus MH - Escherichia coli MH - Gram-Negative Bacteria MH - Gram-Positive Bacteria EDAT- 2024/02/02 12:43 MHDA- 2024/02/15 06:43 CRDT- 2024/02/02 09:37 PHST- 2024/02/15 06:43 [medline] PHST- 2024/02/02 12:43 [pubmed] PHST- 2024/02/02 09:37 [entrez] AID - 10.1039/d3tb02693k [doi] PST - epublish SO - J Mater Chem B. 2024 Feb 14;12(7):1905-1925. doi: 10.1039/d3tb02693k.