Gd3+-Doped MoSe2 nanosheets used as a theranostic agent for bimodal imaging and highly efficient photothermal cancer therapy

2018 ◽  
Vol 6 (2) ◽  
pp. 372-387 ◽  
Author(s):  
Jiali Pan ◽  
Xufeng Zhu ◽  
Xu Chen ◽  
Yingyu Zhao ◽  
Jie Liu

MoSe2(Gd3+)-PEG nanosheets with high stability and low toxicity used to achieve a MR/PA bimodal imaging monitoring super photothermal effect under NIR laser irradiation.

Cancers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1286 ◽  
Author(s):  
Lee ◽  
Jung ◽  
Jo ◽  
Yang ◽  
Koh ◽  
...  

Abstract: Photothermal therapy (PTT) using a near-infrared (NIR) heptamethine cyanine fluorophore has emerged as an alternative strategy for targeted cancer therapy. NIR fluorophores showing a high molar extinction coefficient and low fluorescence quantum yield have considerable potential applications in photothermal cancer therapy. In this study, a bifunctional sorbitol–ZW800 conjugate was used as an advanced concept of photothermal therapeutic agents for in vivo cancer imaging and therapy owing to the high tumor targetability of the sorbitol moiety and excellent photothermal property of NIR heptamethine cyanine fluorophore. The sorbitol–ZW800 showed an excellent photothermal effect increased by 58.7 °C after NIR laser irradiation (1.1 W/cm2) for 5 min. The HT-29 tumors targeted by sorbitol–ZW800 showed a significant decrease in tumor volumes for 7 days after photothermal treatment. Therefore, combining the bifunctional sorbitol–ZW800 conjugate and NIR laser irradiation is an alternative way for targeted cancer therapy, and this approach holds great promise as a safe and highly efficient NIR photothermal agent for future clinical applications.


Biomedicines ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 476 ◽  
Author(s):  
Gayoung Jo ◽  
Bo Young Lee ◽  
Eun Jeong Kim ◽  
Min Ho Park ◽  
Hoon Hyun

A feasible and biocompatible supramolecular complex self-assembled from indocyanine green (ICG) and methyl-β-cyclodextrin (Mβ-CD) was developed for targeted cancer imaging, which enhanced fluorescence-guided photothermal cancer therapy. This study confirmed that the formation of an inclusion complex of the heterocyclic ICG moiety and Mβ-CD inner cavity could result in improved tumor targetability compared with free ICG. The ICG-CD complex could be used as a bifunctional phototherapeutic agent for targeted cancer phototherapy due to the high tumor targetability of the Mβ-CD moiety and effective photothermal performance of the near-infrared (NIR) ICG moiety. Upon NIR laser irradiation, the photothermal effect exerted by the ICG-CD complex significantly enhanced the temperature at the tumor site by 56.2 °C within 5 min. Targeting HT-29 tumors using the ICG-CD complex resulted in an apparent reduction in tumor volumes over the 9 days after photothermal treatment. Moreover, no tumor recurrence or body weight loss were observed after administering a single dose of ICG-CD complex with NIR laser irradiation. Therefore, the administration of the biocompatible ICG-CD complex in combination with NIR laser treatment can be safely explored as a potential strategy for future clinical applications.


2016 ◽  
Vol 7 (7) ◽  
pp. 4237-4244 ◽  
Author(s):  
Zhengze Yu ◽  
Wei Pan ◽  
Na Li ◽  
Bo Tang

A nuclear targeted dual-photosensitizer was developed for photodynamic therapy against multidrug resistant cancer. Multiple reactive oxygen species (ROS) could be generated in the nucleus to directly break DNA double strands with a single 980 nm NIR laser irradiation, regardless of drug resistance.


RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61141-61149 ◽  
Author(s):  
Farhad Bani ◽  
Mohsen Adeli ◽  
Soodabeh Movahedi ◽  
Majid Sadeghizadeh

The aim of this study is to develop a nano graphene–polyglycerol–curcumin hybrid capable of simultaneous co-delivery of chemotherapeutic drug and cytotoxic heat to cancer cells by near infrared (NIR) laser irradiation.


2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Bing Liu ◽  
Jian Zhou ◽  
Bin Zhang ◽  
Jing Qu

Photothermal therapy is a promising approach for cancer treatment. In our study, we investigate the photothermal effect of different concentrations of the Ag@Fe3O4 nanoparticles on apoptosis and proliferation in the human epithelial ovarian cancer cells SKOV3. Ovarian cancer cells SKOV3 were treated with the Ag@Fe3O4 nanoparticles under an 808 nm near-infrared (NIR) laser irradiation at different concentrations. The cell proliferation was measured by the cell counting kit-8 (CCK-8) assay. The results show that the Ag@Fe3O4 nanoparticles with NIR laser irradiation could markedly inhibit the proliferation of the ovarian cancer cells SKOV3 independent of a concentration-time manner. Meanwhile, the cell morphology was also seriously damaged under the treatment of high-concentration nanoparticles. However, Ag@Fe3O4 nanoparticles have almost no obvious effect on the growth of SKOV3 cells without NIR laser illumination treatment. Therefore, it is reasonable to believe that the Ag@Fe3O4 nanoparticles have promising applications in photothermal treatment of cancer cells.


RSC Advances ◽  
2016 ◽  
Vol 6 (26) ◽  
pp. 21590-21599 ◽  
Author(s):  
Ruichan Lv ◽  
Chongna Zhong ◽  
Arif Kuhan Gulzar ◽  
Fei He ◽  
Rui Gu ◽  
...  

Yolk/shell mesoporous NaYF4:Yb,Er@MgSiO3–ZnPc–RGD spheres have been fabricated to combine photodynamic therapy (PDT) and bio-imaging for improved antitumor efficacy under NIR laser irradiation.


RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 33083-33091 ◽  
Author(s):  
Chunyang Li ◽  
Zhijia Liu ◽  
Ping Yao

The nanoparticles improved tumor CT imaging and cured tumors after injection of the nanoparticles followed by NIR laser irradiation.


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Ha Hee Shin ◽  
Hyung Woo Choi ◽  
Jae Hyun Lim ◽  
Ji Woon Kim ◽  
Bong Geun Chung

AbstractThe combination therapy based on multifunctional nanocomposites has been considered as a promising approach to improve cancer therapeutic efficacy. Herein, we report targeted multi-functional poly(N-isopropylacrylamide) (PNIPAM)-based nanocomposites for synergistic chemo-photothermal therapy toward breast cancer cells. To increase the transition temperature, acrylic acid (AAc) was added in synthetic process of PNIPAM, showing that the intrinsic lower critical solution temperature was changed to 42 °C . To generate the photothermal effect under near-infrared (NIR) laser irradiation (808 nm), polypyrrole (ppy) nanoparticles were uniformly decorated in PNIPAM-AAc. Folic acid (FA), as a cancer targeting ligand, was successfully conjugated on the surplus carboxyl groups in PNIPAM network. The drug release of PNIPAM-ppy-FA nanocomposites was efficiently triggered in response to the temperature change by NIR laser irradiation. We also confirmed that PNIPAM-ppy-FA was internalized to MDA-MB-231 breast cancer cells by folate-receptor-mediated endocytosis and significantly enhanced cancer therapeutic efficacy with combination treatment of chemo-photothermal effects. Therefore, our work encourages further exploration of multi-functional nanocarrier agents for synergistic therapeutic approaches to different types of cancer cells.


RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25958-25965
Author(s):  
Ying-Jie Wu ◽  
Fan-Hong Lv ◽  
Jing-Lan Kan ◽  
Qun Guan ◽  
Anqi Xue ◽  
...  

Two new HSA-involved tetra(butylamino)phthalocyanine composite nanoparticles, as highly efficient dual-phototherapy agents upon a single NIR laser irradiation, were reported.


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