Size-Dependent Self-Assembly of Anisotropic Silica-Coated Hybrid Nanoparticles

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


Langmuir ◽  
1995 ◽  
Vol 11 (8) ◽  
pp. 2975-2978 ◽  
Author(s):  
Mariko Yamaki ◽  
Junichi Higo ◽  
Kuniaki Nagayama

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.


2019 ◽  
Vol 5 (9) ◽  
pp. eaaw5912 ◽  
Author(s):  
Evan Pretti ◽  
Hasan Zerze ◽  
Minseok Song ◽  
Yajun Ding ◽  
Runfang Mao ◽  
...  

Nucleation and growth of crystalline phases play an important role in a variety of physical phenomena, ranging from freezing of liquids to assembly of colloidal particles. Understanding these processes in the context of colloidal crystallization is of great importance for predicting and controlling the structures produced. In many systems, crystallites that nucleate have structures differing from those expected from bulk equilibrium thermodynamic considerations, and this is often attributed to kinetic effects. In this work, we consider the self-assembly of a binary mixture of colloids in two dimensions, which exhibits a structural transformation from a non–close-packed to a close-packed lattice during crystal growth. We show that this transformation is thermodynamically driven, resulting from size dependence of the relative free energy between the two structures. We demonstrate that structural selection can be entirely thermodynamic, in contrast to previously considered effects involving growth kinetics or interaction with the surrounding fluid phase.


2011 ◽  
Vol 311-313 ◽  
pp. 461-465
Author(s):  
Dau Chung Wang ◽  
Shinn Hwa Chen ◽  
Gen You Chen ◽  
Ken Yen Chen ◽  
Cheng Hsien Tsai

Recently, self-assembly synthesis of metal nano-particles has attracted great interest due to its unique size dependent properties. In this study, an easy synthesis would be developed to form Au nano-particles which are without toxicity. The Au particles could be applied in biological and biological toxicity experiments. Some phenomena could be discovered in this paper. First, the concentration ratio of Au and trisodium citrate would be adjusted to control the Au nano-particles size. And the particle size is limited because of the size dependent energy would be discovered in this paper. The minimum particle size is also found. The one phase liquid reduction method is easy and without toxicity, it is low-cost, high-throughput, and suitable to be applied in biological and biological toxicity studies.


2009 ◽  
Vol 29 (8) ◽  
pp. 2459-2463 ◽  
Author(s):  
Tremaine B. Powell ◽  
Phat L. Tran ◽  
Keesung Kim ◽  
Jeong-Yeol Yoon

2014 ◽  
Vol 4 (8) ◽  
pp. 1564 ◽  
Author(s):  
Katsura Ikemiya ◽  
Kuniaki Konishi ◽  
Eiko Fujii ◽  
Toshihiro Kogure ◽  
Makoto Kuwata-Gonokami ◽  
...  

2016 ◽  
Vol 7 (43) ◽  
pp. 6575-6585 ◽  
Author(s):  
Guo Hui Teo ◽  
Rhiannon P. Kuchel ◽  
Per B. Zetterlund ◽  
Stuart C. Thickett

The preparation of polymer-silica hybrid nanoparticles of various morphologies is reported.


2013 ◽  
Vol 135 (50) ◽  
pp. 18722-18725 ◽  
Author(s):  
Franziska Fennel ◽  
Steffen Wolter ◽  
Zengqi Xie ◽  
Per-Arno Plötz ◽  
Oliver Kühn ◽  
...  

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