Miniature Robots for Battling Bacterial Infection
Weijie Zhong1, Stephan Handschuh-Wang2, U T Uthappa1,3
1College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, P. R. China.
Abstract:
Micro/nanorobots have shown great promise for minimally invasive bacterial infection therapy. However, bacterial infections usually form biofilms inside the body by aggregation and adhesion, preventing antibiotic penetration and increasing the likelihood of recurrence. Moreover, a substantial portion of the infection happens in those hard-to-access regions, making delivery of antibiotics to infected sites or tissues difficult and exacerbating the challenge of addressing bacterial infections. Micro/nanorobots feature exceptional mobility and controllability, are able to deliver drugs to specific sites (targeted delivery), and enhance drug penetration. In particular, the emergence of bioinspired microrobot surface design strategies have provided effective alternatives for treating infections, thereby preventing the possible development of bacterial resistance. In this paper, we review the recent advances in design, mechanism, and actuation modalities of micro/nanorobots with exceptional antimicrobial features, highlighting active therapy strategies for bacterial infections and derived complications at various organs, from the laboratory bench to in vivo applications. The current challenges and future research directions in this field are summarized. Those breakthroughs in micro/nanorobots offer a huge potential for clinical translation for bacterial infection therapy.
Insights
Micro/nanorobots offer promising solutions for bacterial infections, especially biofilms in hard-to-reach areas. These tiny robots enhance targeted drug delivery and penetration, combating infections and preventing resistance.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Infectious Diseases
Background:
- Bacterial infections often form biofilms, hindering antibiotic efficacy and leading to recurrence.
- Infections in difficult-to-access body regions pose significant therapeutic challenges.
- Current treatments struggle with targeted drug delivery and penetration through biofilms.
Purpose of the Study:
- To review recent advances in micro/nanorobot design for bacterial infection therapy.
- To highlight the mechanisms and actuation modalities of antimicrobial micro/nanorobots.
- To discuss active therapy strategies and clinical translation potential.
Main Methods:
- Review of literature on micro/nanorobot design and applications in combating bacterial infections.
- Analysis of bioinspired surface strategies for enhanced antimicrobial activity.
- Examination of targeted delivery and drug penetration enhancement by micro/nanorobots.
Main Results:
- Micro/nanorobots demonstrate exceptional mobility and controllability for targeted drug delivery.
- Bioinspired designs offer effective alternatives to traditional treatments, preventing bacterial resistance.
- These robots show potential for treating infections in various organs, from lab to in vivo.
Conclusions:
- Micro/nanorobots present a significant advancement in minimally invasive bacterial infection therapy.
- Their ability to overcome biofilm challenges and reach difficult sites is crucial for treatment success.
- Further research and development hold immense potential for clinical translation in combating bacterial infections.
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