Effect of Nanoparticle Synthetic Conditions on Ligand Coating Integrity and Subsequent Nano-Biointeractions.

Effect of Nanoparticle Synthetic Conditions on Ligand Coating Integrity and Subsequent Nano-Biointeractions.
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纳米颗粒合成条件对配体涂层完整性和随后的纳米生物相互作用的影响。

DOI:
10.1021/acsami.1c18941
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发表时间:
2021-12-15
影响因子:
9.5
通讯作者:
Cormode DP
Cormode DP
中科院分区:
材料科学2区
文献类型:
--
作者:
Hsu JC;Du Y;Sengupta A;Dong YC;Mossburg KJ;Bouché M;Maidment ADA;Weljie AM;Cormode DP

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大多数当前的纳米颗粒制剂具有相对低的清除效率,这可能妨碍它们用于临床转化的可能性。本文中,我们试图比较通过本体高温或微流体室温方法合成的亚5 nm肾排泄性硫化银纳米颗粒(Ag 2S-NPs)之间的清除率和细胞分布概况。我们发现,热处理方法导致显著的配体降解,但表面涂层壳不受微流体合成的影响。我们证明了具有完整配体的Ag 2S-NPs的清除率得到改善,肝脏中的摄取较少。此外,观察到肝细胞中的差异分布,其中具有降解涂层的Ag 2S-NPs倾向于在枯否细胞中积累,而具有完整涂层的Ag 2S-NPs更常见于肝细胞中。因此,了解合成过程对配体完整性和随后的纳米生物相互作用的影响将有助于设计具有增强的清除率和所需分布曲线的纳米颗粒平台。
Most current nanoparticle formulations have relatively low clearance efficiency, which may hamper their likelihood for clinical translation. Herein, we sought to compare the clearance and cellular distribution profiles between sub-5 nm, renally-excretable silver sulfide nanoparticles (Ag2S-NPs) synthesized via either a bulk, high temperature, or a microfluidic, room temperature approach. We found that the thermolysis approach led to significant ligand degradation, but the surface coating shell was unaffected by the microfluidic synthesis. We demonstrated that the clearance was improved for Ag2S-NPs with intact ligands, with less uptake in the liver. Moreover, differential distribution in hepatic cells was observed, where Ag2S-NPs with degraded coatings tend to accumulate in Kupffer cells and those with intact coatings are more frequently found in hepatocytes. Therefore, understanding the impact of synthetic processes on ligand integrity and subsequent nano-biointeractions will aid in designing nanoparticle platforms with enhanced clearance and desired distribution profiles.
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