A biodegradable and near-infrared light-activatable photothermal nanoconvertor for bacterial inactivation

Abstract

A new nano-antibacterial strategy based on a biodegradable charge-transfer nanocomplex (CTN) was developed, in which the CTN acted as a high-efficiency near-infrared light-activatable photothermal nanoconvertor.

Orthogonal light-triggered multiple effects based on photochromic nanoparticles for DNA cleavage and beyond

“…What is more, the photothermal activity of WO 3 under the dual-light co-irradiation remained stable over at least three photothermal cycles, revealing the strong and excellent stability of the synergetic effect between the orthogonal light wavelengths. According to eqn (S4)-(S7) (ESI †), 40 the photothermal efficiency (Z) was calculated to be 55.26%, which is comparable or better than that of the most reported inorganic photothermal materials. WO 3 is a semiconductor material, and light excitation may induce its internal electron transition and generate strong redox energy.…”

Construction and Activity Study of a Natural Antibacterial Patch Based on Natural Active Substance-Green Porous Structures

“…A Live/Dead bacterial activity kit (BacLight TM , Thermo Fisher Scientific, Waltham, MA USA) was used to evaluate the bacterial viability [ 41 ]. This kit contains two dyes, SYTO 9 and propidium iodide (PI).…”

Constructing a self-healing injectable SABA/Borax/PDA@AgNPs hydrogel for synergistic low-temperature photothermal antibacterial therapy

“…Recently, photothermal therapy (PTT) with near infrared (NIR) light caused hyperthermia has been widely utilized as a potent candidate for combating bacterial infections because of its high efficiency and lack of development of bacterial resistance. [3][4][5][6][7][8] However, during the PTT treatment process, the very high temperature (455 1C) can induce irreversible damage to normal human cells and tissues nearby, causing serious side effects. 9 To overcome this problem, low-temperature PTT (LT-PTT, r45 1C) has been considered as an expected modality to protect healthy tissues against high temperature injury.…”