PMID- 32473477 OWN - NLM STAT- MEDLINE DCOM- 20210621 LR - 20210621 IS - 1095-7103 (Electronic) IS - 0021-9797 (Linking) VI - 577 DP - 2020 Oct 1 TI - Synthesis of carbon quantum dot-poly lactic-co-glycolic acid hybrid nanoparticles for chemo-photothermal therapy against bacterial biofilms. PG - 66-74 LID - S0021-9797(20)30670-6 [pii] LID - 10.1016/j.jcis.2020.05.067 [doi] AB - Bacterial biofilm represents a protected mode of bacterial growth that significantly enhances the resistance to antibiotics. Poly lactic-co-glycolic acid (PLGA)-based nanoparticle delivery systems have been intensively investigated to combat the bacterial biofilms-associated infections. However, some drawbacks associated with current PLGA-based nanoformulations (e.g. the relatively low drug loading capability, premature burst release and/or incapability of on-demand release of cargos at the site of action) restrict the transition from the lab research to the clinical applications. One potent strategy to overcome the above-mentioned limitations is exploiting the unique properties of carbon quantum dots (CQDs) and combining CQDs with the conventional PLGA nanoparticles. In the present study, the CQDs were innovatively incorporated into PLGA nanoparticles by using a microfluidic method. The resulting CQD-PLGA hybrid nanoparticles presented good loading capability of azithromycin (a macrolide antibiotic, AZI) and tobramycin (an aminoglycoside antibiotic, TOB), and stimuli-responsive release of the cargos upon laser irradiation. Consequently, AZI-loaded CQD-PLGA hybrid nanoparticles showed chemo-photothermally synergistic anti-biofilm effects against P. aeruginosa biofilms. Additionally, the CQD-PLGA hybrid nanoparticles demonstrated good biocompatibility with the eukaryotic cells. Overall, the proof-of-concept of CQD-PLGA hybrid nanoparticles may open a new possibility in chemo-photothermal therapy against bacterial biofilms. CI - Copyright (c) 2020 Elsevier Inc. All rights reserved. FAU - Huang, Zheng AU - Huang Z AD - Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen O, Denmark. FAU - Zhou, Tongchang AU - Zhou T AD - Department of Health Technology, Technical University of Denmark, Building 220, Soltofts Plads, DK-2800 Lyngby, Denmark. FAU - Yuan, Yuan AU - Yuan Y AD - Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen O, Denmark. FAU - Natalie Klodzinska, Sylvia AU - Natalie Klodzinska S AD - Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen O, Denmark; Center for Biopharmaceuticals and Biobarriers in Drug Delivery, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen O, Denmark. FAU - Zheng, Tao AU - Zheng T AD - Department of Health Technology, Technical University of Denmark, Building 220, Soltofts Plads, DK-2800 Lyngby, Denmark. FAU - Sternberg, Claus AU - Sternberg C AD - Department of Biotechnology and Biomedicine, Technical University of Denmark, Building 221, Soltofts Plads, DK-2800 Lyngby, Denmark. FAU - Morck Nielsen, Hanne AU - Morck Nielsen H AD - Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen O, Denmark. FAU - Sun, Yi AU - Sun Y AD - Department of Health Technology, Technical University of Denmark, Building 220, Soltofts Plads, DK-2800 Lyngby, Denmark. Electronic address: suyi@dtu.dk. FAU - Wan, Feng AU - Wan F AD - Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen O, Denmark; Center for Biopharmaceuticals and Biobarriers in Drug Delivery, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen O, Denmark. Electronic address: feng.wan@sund.ku.dk. LA - eng PT - Journal Article DEP - 20200523 PL - United States TA - J Colloid Interface Sci JT - Journal of colloid and interface science JID - 0043125 RN - 0 (Drug Carriers) RN - 0 (Glycolates) RN - 0 (Glycols) RN - 0WT12SX38S (glycolic acid) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 7440-44-0 (Carbon) SB - IM MH - Biofilms MH - Carbon MH - Drug Carriers MH - Glycolates MH - Glycols MH - *Nanoparticles MH - Photothermal Therapy MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - *Quantum Dots OTO - NOTNLM OT - Azithromycin OT - Bacterial biofilms OT - Carbon quantum dots OT - Chemo-photothermal therapy OT - PLGA nanoparticles OT - Tobramycin EDAT- 2020/05/31 06:00 MHDA- 2021/06/22 06:00 CRDT- 2020/05/31 06:00 PHST- 2020/04/16 00:00 [received] PHST- 2020/05/11 00:00 [revised] PHST- 2020/05/17 00:00 [accepted] PHST- 2020/05/31 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2020/05/31 06:00 [entrez] AID - S0021-9797(20)30670-6 [pii] AID - 10.1016/j.jcis.2020.05.067 [doi] PST - ppublish SO - J Colloid Interface Sci. 2020 Oct 1;577:66-74. doi: 10.1016/j.jcis.2020.05.067. Epub 2020 May 23.