Nanoplatforms for Cancer Theranostics · Journal article

Photosensitizers in Motion: Micro- and Nanomotor-Assisted Photodynamic Therapy

Acs Nano Medicine · September 7, 2026

Hypothesis-Generating Why this matters to you Expert discussion

Raises a question worth testing. It does not answer one.

AI Summary

This is a narrative review of an emerging therapeutic strategy coupling photodynamic therapy with self-propelled micro- and nanomotors to enhance photosensitizer transport and mitigate hypoxia. The source synthesizes mechanistic concepts and early-stage in vitro and in vivo work but does not report original efficacy data, clinical outcomes, or comparative effectiveness.

What was studied

Journal article.

Key findings

Active MNM motion enhances photosensitizer transport and localization Oxygen-generating or oxygen-supplying MNM platforms can partially mitigate hypoxia-related limitations of PDT Combination strategy integrates photodynamic activity with autonomous propulsion

Safety

Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.

Who this may help

The source did not state who this applies to in practice.

Plain-language summary

This is a narrative review article synthesizing emerging concepts in combining micro/nanomotors with photodynamic therapy; it raises mechanistic questions and describes early-stage approaches rather than reporting primary evidence of clinical or preclinical efficacy.

Caveats

No primary efficacy data, effect sizes, or comparative outcomes reported.
No sample sizes, confidence intervals, or p-values provided.
Scope is limited to review of existing literature; no original experimental results presented.
Generalizability and clinical translation potential not quantified.

Evidence assessment

Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.

Study design

insufficient

Review article; no primary study design; synthesizes literature from others.

Directness

limited

Examines in vitro and in vivo studies but does not report original outcome data.

Consistency

insufficient

Source does not report consistency of findings across included studies.

Risk of bias

insufficient

No risk-of-bias assessment or critical appraisal methodology described.

Sample adequacy

insufficient

Not applicable to a narrative review; no quantitative synthesis reported.

What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.

Source abstract

Abstract Photodynamic therapy (PDT) is a clinically relevant and minimally invasive strategy for treating diseases associated with uncontrolled tissue growth, including nonmelanoma skin cancers and microbial infections. Its spatiotemporal selectivity minimizes damage to healthy tissues and limits the emergence of therapeutic resistance, while its versatility enables integration with complementary therapeutic approaches. One emerging direction is the combination of PDT with artificial self-propelled micro- and nanomotors (MNMs). Active MNM motion enhances photosensitizer (PS) transport and localization, while oxygen-generating or oxygen-supplying MNM platforms can partially mitigate hypoxia-related limitations of PDT. This Review provides a comprehensive overview of recent advances in MNM-assisted PDT, highlighting commonly used PS molecules and strategies for their integration into MNMs to couple photodynamic activity with autonomous propulsion. It examines representative in vitro and in vivo studies, identifies critical performance parameters and current challenges, and explores future opportunities for the rational design of next-generation self-propelled phototherapeutic systems.

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Katherine VillaNanoplatforms for Cancer TheranosticsFlávia Amanda Pedroso de Morais