期刊
EXPERT OPINION ON DRUG DELIVERY
卷 13, 期 8, 页码 1109-1119出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17425247.2016.1178719
关键词
Antibiofilm; antimicrobial drug delivery; contact-killing surfaces; intracellular infections; microorganism-triggered release; medical device; nanocarrier
资金
- MINECO Spain [SAF2014-52632-R]
- FEDER
- MINECO through Ramon y Cajal Programme [RYC-2014-15239]
- Xunta de Galicia [R2014/039]
Introduction: Polymers can be designed to modify their features as a function of the level and nature of the surrounding microorganisms. Such responsive polymers can endow drug delivery systems and drug-medical device combination products with improved performance against intracellular infections and biofilms. Areas covered: Knowledge on microorganism growth environment outside and inside cells and formation of biofilm communities on biological and synthetic surfaces, together with advances in materials science and drug delivery are prompting strategies with improved efficacy and safety compared to traditional systemic administration of antimicrobial agents. This review deals with antimicrobial strategies that rely on: (i) polymers that disintegrate or undergo phase-transitions in response to changes in enzymes, pH and pO(2) associated to microorganism growth; (ii) stimuli-responsive polymers that expose contact-killing groups when microorganisms try to adhere; and (iii) bioinspired polymers that recognize microorganisms for triggered (competitive/affinity-driven) drug release. Expert opinion: Prophylaxis and treatment of infections may benefit from polymers that are responsive to the unique changes that microbial growth causes in the surrounding environment or that even recognize the microorganism itself or its quorum sensing signals. These polymers may offer novel tools for the design of macrophage-, bacteria- and/or biofilm-targeted nanocarriers as well as of medical devices with switchable antibiofouling properties.
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