Abstract
Photothermal therapy (PTT), typically ablates tumors via hyperthermia generated from photothermal agents (PTAs) under laser irradiation, has attracted great attentions in the past decades. Unfortunately, longstanding, frequent and high-power density laser irradiations are needed to maintain the hyperthermal status (>50 °C) for efficient therapy, which will damage the skin and nearby healthy tissues. Suppressing cancer cells with a mild temperature elevation is more attractive and feasible for PTT. Recently, low-temperature photothermal therapy (LTPTT), which could inhibit tumor under mild hyperthermia, has been widely investigated by researchers. Herein, we systematically summarized the strategies to achieve LTPTT. Diverse PTAs including organic and inorganic materials reported for LTPTT were introduced. The established strategies for LTPTT were intensively described. Finally, the challenges as well as future perspectives in this field were discussed.
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