Photodiagnosis and photodynamic therapy · 2026
Bibliometric analysis in the field of photobiomodulation in the last two decades: research trends and evolution of hot topics.
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Zhang Chuanzheng, Cheng Cheng, Wang Lulu, Zhang Hongli, Yu Yue, Zhang Jiawei, Zhang Jing
Аннотация
BACKGROUND: Photobiomodulation (PBM) has evolved into a vibrant interdisciplinary field. Despite rapid research expansion, a comprehensive quantitative mapping of its knowledge structure, key contributors, and emerging trends remains lacking.
METHODS: We conducted a bibliometric analysis of PBM publications from the Web of Science Core Collection (2006-2025). Knowledge mapping utilized CiteSpace, VOSviewer, and the bibliometrix R package. Additionally, PubMed clinical trial data were extracted to cross-validate bibliometric trends with actual clinical practice.
RESULTS: We identified 4907 publications, exhibiting a compound annual growth rate of 14.67%. Michael R. Hamblin was the most prolific author (n = 100, h-index = 54), and Lasers in Medical Science was the core journal (n = 1180). Brazil dominated global output (32.2%, n = 1579), led by the University of São Paulo (n = 821). Thematic analysis highlighted "photobiomodulation" and "low-level laser therapy" as fundamental themes, while "Alzheimer's disease" emerged as a specialized, rapidly growing niche.
CONCLUSIONS: Over two decades, PBM has matured into a promising mainstream therapeutic modality. Future research must prioritize the standardization of treatment parameters, alongside deeper exploration of biological mechanisms and long-term clinical validation. This 20-year mapping provides a strategic roadmap to guide evidence-based PBM practice.
METHODS: We conducted a bibliometric analysis of PBM publications from the Web of Science Core Collection (2006-2025). Knowledge mapping utilized CiteSpace, VOSviewer, and the bibliometrix R package. Additionally, PubMed clinical trial data were extracted to cross-validate bibliometric trends with actual clinical practice.
RESULTS: We identified 4907 publications, exhibiting a compound annual growth rate of 14.67%. Michael R. Hamblin was the most prolific author (n = 100, h-index = 54), and Lasers in Medical Science was the core journal (n = 1180). Brazil dominated global output (32.2%, n = 1579), led by the University of São Paulo (n = 821). Thematic analysis highlighted "photobiomodulation" and "low-level laser therapy" as fundamental themes, while "Alzheimer's disease" emerged as a specialized, rapidly growing niche.
CONCLUSIONS: Over two decades, PBM has matured into a promising mainstream therapeutic modality. Future research must prioritize the standardization of treatment parameters, alongside deeper exploration of biological mechanisms and long-term clinical validation. This 20-year mapping provides a strategic roadmap to guide evidence-based PBM practice.