Facile synthesis of polypyrrole–rhodamine B nanoparticles for self-monitored photothermal therapy of cancer cells

2020 ◽  
Vol 8 (5) ◽  
pp. 1033-1039 ◽  
Author(s):  
Xiao-Hui Wang ◽  
Xue-Qiao Chen ◽  
Hong-Shang Peng ◽  
Xiao-Fei Wei ◽  
Xiao-Juan Wang ◽  
...  

Biocompatible dual-functional nanoparticles combining polypyrrole with rhodamine B are constructed for photothermal ablation of cancer cells and real-time temperature monitoring during PTT.

2021 ◽  
Vol 17 (3) ◽  
pp. 501-508
Author(s):  
Wenzeng Shen ◽  
Xuefeng Zhang ◽  
Dongyang Liu ◽  
Christina Xing ◽  
Isabelle Tucker ◽  
...  

Photothermal ablation therapy (PTA) has been widely reported; however, it is not possible to predict the internal temperature of the tumor in real time that causes ineffective treatment and normal tissue burns. Here, we have designed a photothermal therapy strategy under real-time temperature monitoring by injecting gold nanorods (AuNRs) and NaYF4: Yb3+ /Er3+ into the tumor site where AuNRs are used for PTA of cancer cells by converting the absorbed energy into heat and using Yb3+ , Er3+-NaYF 4 phosphors to monitor the temperature inside the tumor. Our experiments confirm the effectiveness of this strategy, which is expected to be an aid in the development of real-time temperature monitoring and effective photothermal therapy for the treatment of cancers.


2017 ◽  
Vol 5 (9) ◽  
pp. 1772-1778 ◽  
Author(s):  
Xiangjun Chen ◽  
Manjie Zhang ◽  
Shengnan Li ◽  
Lu Li ◽  
Lingyu Zhang ◽  
...  

A facile route was developed to fabricate PPy@MOF for dual-mode magnetic resonance/photoacoustic imaging and synergistic chemo-photothermal therapy.


Small ◽  
2012 ◽  
Vol 9 (4) ◽  
pp. 604-612 ◽  
Author(s):  
Zhenlong Jiang ◽  
Biao Dong ◽  
Boting Chen ◽  
Jing Wang ◽  
Lin Xu ◽  
...  

2017 ◽  
Vol 1 (8) ◽  
pp. 1556-1562 ◽  
Author(s):  
Xiaolei Cai ◽  
Jie Liu ◽  
Weng Heng Liew ◽  
Yukun Duan ◽  
Junlong Geng ◽  
...  

We report organic nanoparticles for efficient photoacoustic imaging and photothermal therapy, based on the small molecule BTPETTQ which has a propeller structure and a donor–acceptor–donor configuration.


RSC Advances ◽  
2017 ◽  
Vol 7 (19) ◽  
pp. 11491-11495 ◽  
Author(s):  
Dongdong Li ◽  
Wen-Yong Lai ◽  
Qiyue Shao ◽  
Wei Huang

NaYF4:Yb3+,Er3+@SiO2@Au heterogeneous nanostructures, with the ability of integrating upconversion luminescence, photothermal therapy and real-time temperature monitoring, have been successfully prepared.


2019 ◽  
Vol 26 (10) ◽  
pp. 758-767
Author(s):  
Vicente Rubio ◽  
Vijaya Iragavarapu ◽  
Maciej J. Stawikowski

Background: Herein we report the multigram-scale synthesis, characterization and application of a rhodamine B-based fluorophore (ROSA) suitable for fluorescent studies in biological applications. This fluorophore is devoid of rhodamine spirolactone formation and furthermore characterized by a high molar extinction coefficient (ϵ=87250 ± 1630 M-1cm-1) and quantum yield (φ) of 0.589 ± 0.070 in water. Reported here is also the application of ROSA towards synthesis of a ROSA-PEG-GRGDS-NH2 fluorescent probe suitable for live cell imaging of αvβ3 integrins for in vitro assays. Objective: The main objective of this study is to efficiently prepare rhodamine B derivative, devoid of spirolactone formation that would be suitable for bioconjugation and subsequent bioimaging. Methods: Rhodamine B was transformed into rhodamine B succinimide ester (RhoB-OSu) using N-hydroxysuccinimide. RhoB-OSu was further coupled to sarcosine to obtain rhodamine Bsarcosine dye (ROSA) in good yield. The ROSA dye was then coupled to a αvβ3 integrin binding sequence using standard solid-phase conditions. Resulting ROSA-PEG-GRGDS-NH2 probe was used to image integrins on cancer cells. Results: The rhodamine B-sarcosine dye (ROSA) was obtained in multigram scale in good total yield of 47%. Unlike rhodamine B, the ROSA dye does not undergo pH-dependent spirolactone/spirolactam formation as compared with rhodamine B-glycine. It is also characterized by excellent quantum yield (φ) of 0.589 ± 0.070 in water and high molar extinction coefficient of 87250 ± 1630 M-1cm-1. ROSA coupling to the RGD-like peptide was proved to be efficient and straightforward. Imaging using standard filters on multimode plate reader and confocal microscope was performed. The αvβ3 integrins present on the surface of live WM-266-4 (melanoma) and MCF- 7 (breast cancer) cells were successfully imaged. Conclusion: We successfully derivatized rhodamine B to create an inexpensive, stable and convenient to use fluorescent probe. The obtained derivative has excellent photochemical properties and it is suitable for bioconjugation and many imaging applications.


2021 ◽  
Vol 124 ◽  
pp. 112086
Author(s):  
Ghazal Farahavar ◽  
Samira Sadat Abolmaali ◽  
Foroogh Nejatollahi ◽  
Amin Safaie ◽  
Sanaz Javanmardi ◽  
...  

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