A near-infrared light-controlled system for reversible presentation of bioactive ligands using polypeptide-engineered functionalized gold nanorods

2015 ◽  
Vol 51 (13) ◽  
pp. 2569-2572 ◽  
Author(s):  
Jie Yang ◽  
Ming-Hao Yao ◽  
Ming-Shuo Du ◽  
Rui-Mei Jin ◽  
Dong-Hui Zhao ◽  
...  

A hybrid platform with polypeptide-engineered functionalized gold nanorods has been designed for reversible presentation of immobilized bioactive ligands by near-infrared light.

Small ◽  
2008 ◽  
Vol 4 (7) ◽  
pp. 1001-1007 ◽  
Author(s):  
Takuro Niidome ◽  
Yasuyuki Akiyama ◽  
Kohei Shimoda ◽  
Takahito Kawano ◽  
Takeshi Mori ◽  
...  

2011 ◽  
Vol 152 ◽  
pp. e137-e139 ◽  
Author(s):  
Daxiang Cui ◽  
Peng Huang ◽  
Chunlei Zhang ◽  
Cengiz S. Ozkan ◽  
Bifeng Pan ◽  
...  

2021 ◽  
Author(s):  
Daniel DiCenzo DiCenzo

Gold nanoparticles (GNP) have been shown to highly absorb ionizing radiation compared to tissue. GNPs have also been shown to be high absorbers of non-ionizing radiation with a peak absorbance at a wavelength dependent on their shape and size. This study investigated radiation dose enhancement in PC3 cells when in the presence of gold nanorods (NR) and near infrared light (IR). The PC3 cells were incubated with either PEGylated NRs (PNR) or anti prostate stem cell antigen antibody with nuclear localization sequence peptide conjugated NRs (AbNR). They were exposed to near infrared light at a wavelength of 810 nm to achieve a temperature of 42 ºC to 43 ºC for 60 minutes. They were also exposed to 160 kVp x-rays. It was found that both targeted and non-targeted GNPs when exposed to radiation and near infrared light synergistically enhanced radiation dose. It was also found that AbNRs provide greater dose enhancement than PNRs.


Small ◽  
2015 ◽  
Vol 11 (19) ◽  
pp. 2323-2332 ◽  
Author(s):  
Ji Liu ◽  
Christophe Detrembleur ◽  
Marie-Claire De Pauw-Gillet ◽  
Stéphane Mornet ◽  
Christine Jérôme ◽  
...  

2012 ◽  
Vol 22 (31) ◽  
pp. 16095 ◽  
Author(s):  
Hongyan Tang ◽  
Shun Shen ◽  
Jia Guo ◽  
Baisong Chang ◽  
Xinguo Jiang ◽  
...  

2014 ◽  
Vol 5 (7) ◽  
pp. 2804 ◽  
Author(s):  
Hui Li ◽  
Li-Li Tan ◽  
Peng Jia ◽  
Qing-Lan Li ◽  
Yu-Long Sun ◽  
...  

2011 ◽  
Author(s):  
Fulvio Ratto ◽  
Paolo Matteini ◽  
Sonia Centi ◽  
Francesca Rossi ◽  
Franco Fusi ◽  
...  

2014 ◽  
Vol 07 (01) ◽  
pp. 1350037 ◽  
Author(s):  
YINGFENG DI ◽  
SISI CUI ◽  
YUEQING GU

A novel near-infrared light responsive microcapsule system, gold nanorod-covered DOX-loaded hollow CaCO 3 microcapsule ( AuNR -HM-DOX) is developed for cancer therapy. The hollow CaCO 3 microcapsules were prepared based on the self-assembly between chitosan and sodium alginate on CaCO 3 particles via layer-by-layer technique, and then covered with gold nanorods to obtain the microcapsule system. Upon near-infrared (NIR) irradiation, microcapsule with gold nanorods can convert the absorbed NIR light into heat. Meanwhile, doxorubicin (DOX), a chemotherapy drug, is loaded into the microcapsule system via electrostatic adsorption for combined photothermal therapy and chemotherapy. Properties of AuNR -HM-DOX including grain diameter, optical spectra were characterized. Confocal fluorescence imaging was performed to observe the morphology of the capsules and existence of DOX in the core, confirming the successful loading of DOX. The release of DOX from the capsules under continuous NIR irradiation was investigated to evaluate the temperature responsiveness of AuNR -HM-DOX. Results indicate that AuNR -HM-DOX microcapsules possess uniform particle size and high light responsiveness. The combination of chemical and physical therapy of AuNR -HM-DOX features great potential as an adjuvant therapeutic alternative material for combined cancer therapy.


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