Efficient Enrichment and Self-Assembly of Hybrid Nanoparticles into Removable and Magnetic SERS Substrates for Sensitive Detection of Environmental Pollutants

2017 ◽  
Vol 9 (8) ◽  
pp. 7472-7480 ◽  
Author(s):  
Siying Tang ◽  
Yong Li ◽  
Hao Huang ◽  
Penghui Li ◽  
Zhinan Guo ◽  
...  
Author(s):  
Xiaoya Peng ◽  
Dan Li ◽  
Yuanting Li ◽  
Haibo Xing ◽  
Wei Deng

Antibiotic contaminants in aqueous media pose serious threat to human and ecological environments. Therefore, it is necessary to develop robust strategies to detect antibiotic residues. For this purpose, a self-assembly...


Pharmaceutics ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1990
Author(s):  
Kai Zhang ◽  
Jingjing Li ◽  
Xiaofei Xin ◽  
Xiaoqing Du ◽  
Di Zhao ◽  
...  

The co-delivery of chemotherapeutic agents and immune modulators to their targets remains to be a great challenge for nanocarriers. Here, we developed a hybrid thermosensitive nanoparticle (TMNP) which could co-deliver paclitaxel-loaded transferrin (PTX@TF) and marimastat-loaded thermosensitive liposomes (MMST/LTSLs) for the dual targeting of cancer cells and the microenvironment. TMNPs could rapidly release the two payloads triggered by the hyperthermia treatment at the site of tumor. The released PTX@TF entered cancer cells via transferrin-receptor-mediated endocytosis and inhibited the survival of tumor cells. MMST was intelligently employed as an immunomodulator to improve immunotherapy by inhibiting matrix metalloproteinases to reduce chemokine degradation and recruit T cells. The TMNPs promoted the tumor infiltration of CD3+ T cells by 2-fold, including memory/effector CD8+ T cells (4.2-fold) and CD4+ (1.7-fold), but not regulatory T cells. Our in vivo anti-tumor experiment suggested that TMNPs possessed the highest tumor growth inhibitory rate (80.86%) compared with the control group. We demonstrated that the nanoplatform could effectively inhibit the growth of tumors and enhance T cell recruitment through the co-delivery of paclitaxel and marimastat, which could be a promising strategy for the combination of chemotherapy and immunotherapy for cancer treatment.


2015 ◽  
Vol 216 (21) ◽  
pp. 2070-2079 ◽  
Author(s):  
Diego Estupiñán ◽  
Markus B. Bannwarth ◽  
Katharina Landfester ◽  
Daniel Crespy

2021 ◽  
Author(s):  
Kang Wang ◽  
Yuhan Duan ◽  
Jiajing Chen ◽  
Haiying Wang ◽  
Hui-Yan Liu

Self-assembly of two Zn-MOFs, [Zn2L(DMF)3]•H2O•5DMF (1) and [Zn2L(H2O)2]•4H2O•3DMF (2) were achieved with an amide-functionalized tetracarboxylate ligand under similar conditions. Incorporated amide groups make the tetratopic linkers exhibit different configurations, tetrahedron...


The Analyst ◽  
2015 ◽  
Vol 140 (16) ◽  
pp. 5707-5715 ◽  
Author(s):  
Peng Jia ◽  
Bing Cao ◽  
Jianqiang Wang ◽  
Jin Qu ◽  
Yuxuan Liu ◽  
...  

The AgNCs (AgNPs, AgNTs and AgNDs) decorated-PmPD/PAN nanofiber mats were obtained as highly sensitive 3D SERS substrates.


2018 ◽  
Vol 54 (82) ◽  
pp. 11586-11589
Author(s):  
Jeong Yu Lee ◽  
Ho Yeon Son ◽  
Jae Chul Park ◽  
Jongnam Park ◽  
Yoon Sung Nam

Self-assembly of monodisperse superparamagnetic iron oxide nanocrystals into a close-packed, three-dimensional (3D) superlattice is designed within cross-linked protein-based nanoparticles composed of human serum albumin and polyethylene glycol.


Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12829-12836 ◽  
Author(s):  
Peng Wu ◽  
Lu-Bin Zhong ◽  
Qing Liu ◽  
Xi Zhou ◽  
Yu-Ming Zheng

A polymer induced one-step interfacial self-assembly method was developed to fabricate flexible, robust and free-standing SERS substrates for rapid pesticide residue detection.


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