scholarly journals Broad spectrum antibacterial photodynamic and photothermal therapy achieved with indocyanine green loaded SPIONs under near infrared irradiation

2020 ◽  
Vol 8 (16) ◽  
pp. 4616-4625 ◽  
Author(s):  
K. Bilici ◽  
N. Atac ◽  
A. Muti ◽  
I. Baylam ◽  
O. Dogan ◽  
...  

Antimicrobial photodynamic therapy (aPDT) and antimicrobial photothermal therapy (aPTT) are promising local and effective alternative therapies for antibiotic resistant bacterial infections and biofilms.

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3064
Author(s):  
Sibidou Yougbaré ◽  
Chinmaya Mutalik ◽  
Pei-Feng Chung ◽  
Dyah Ika Krisnawati ◽  
Fajar Rinawati ◽  
...  

Light-responsive nanocomposites have become increasingly attractive in the biomedical field for antibacterial applications. Visible-light-activated metallic molybdenum disulfide nanosheets (1T-MoS2 NSs) and plasmonic gold nanorods (AuNRs) with absorption at a wavelength of 808 nm were synthesized. AuNR nanocomposites decorated onto 1T-MoS2 NSs (MoS2@AuNRs) were successfully prepared by electrostatic adsorption for phototherapy applications. Based on the photothermal effect, the solution temperature of the MoS2@AuNR nanocomposites increased from 25 to 66.7 °C after 808 nm near-infrared (NIR) laser irradiation for 10 min. For the photodynamic effect, the MoS2@AuNR nanocomposites generated reactive oxygen species (ROS) under visible light irradiation. Photothermal therapy and photodynamic therapy of MoS2@AuNRs were confirmed against E. coli by agar plate counts. Most importantly, the combination of photothermal therapy and photodynamic therapy from the MoS2@AuNR nanocomposites revealed higher antibacterial activity than photothermal or photodynamic therapy alone. The light-activated MoS2@AuNR nanocomposites exhibited a remarkable synergistic effect of photothermal therapy and photodynamic therapy, which provides an alternative approach to fight bacterial infections.


2017 ◽  
Vol 35 (5) ◽  
pp. 264-269 ◽  
Author(s):  
Charis Beltes ◽  
Nikolaos Economides ◽  
Hercules Sakkas ◽  
Chrissanthy Papadopoulou ◽  
Theodoros Lambrianidis

2017 ◽  
Vol 5 (9) ◽  
pp. 1856-1862 ◽  
Author(s):  
Xiao-Hui Wang ◽  
Hong-Shang Peng ◽  
Wei Yang ◽  
Zhao-Di Ren ◽  
Xiao-Ming Liu ◽  
...  

Indocyanine green-platinum porphyrins integrated conjugated polymer hybrid nanoparticles for bimodal photothermal and two-photon photodynamic therapy with near-infrared irradiation.


Nanoscale ◽  
2021 ◽  
Author(s):  
Matias Luis Picchio ◽  
Julian Bergueiro Álvarez ◽  
Stefanie Wedepohl ◽  
Roque J Minari ◽  
Cecilia Ines Alvarez Igarzabal ◽  
...  

After several decades of development in the field of near-infrared (NIR) dyes for photothermal therapy (PTT), indocyanine green (ICG) still remains the only FDA-approved NIR contrast agent. However, upon NIR...


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