X‐ray‐Controlled Bilayer Permeability of Bionic Nanocapsules Stabilized by Nucleobase Pairing Interactions for Pulsatile Drug Delivery

The targeted and sustained drug release from stimuli‐responsive nanodelivery systems is limited by the irreversible and uncontrolled disruption of the currently used nanostructures. Bionic nanocapsules are designed by cross‐linking polythymine and photoisomerized polyazobenzene (PETAzo) with adenine...

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Veröffentlicht in:Advanced materials (Weinheim) 2019-09, Vol.31 (37), p.e1903443-n/a
Hauptverfasser: Deng, Hongzhang, Lin, Lisen, Wang, Sheng, Yu, Guocan, Zhou, Zijian, Liu, Yijing, Niu, Gang, Song, Jibin, Chen, Xiaoyuan
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container_issue 37
container_start_page e1903443
container_title Advanced materials (Weinheim)
container_volume 31
creator Deng, Hongzhang
Lin, Lisen
Wang, Sheng
Yu, Guocan
Zhou, Zijian
Liu, Yijing
Niu, Gang
Song, Jibin
Chen, Xiaoyuan
description The targeted and sustained drug release from stimuli‐responsive nanodelivery systems is limited by the irreversible and uncontrolled disruption of the currently used nanostructures. Bionic nanocapsules are designed by cross‐linking polythymine and photoisomerized polyazobenzene (PETAzo) with adenine‐modified ZnS (ZnS‐A) nanoparticles (NPs) via nucleobase pairing. The ZnS‐A NPs convert X‐rays into UV radiation that isomerizes the azobenzene groups, which allows controlled diffusion of the active payloads across the bilayer membranes. In addition, the nucleobase pairing interactions between PETAzo and ZnS‐A prevent drug leakage during their in vivo circulation, which not only enhances tumor accumulation but also maintains stability. These nanocapsules with tunable permeability show prolonged retention, remotely controlled drug release, enhanced targeted accumulation, and effective antitumor effects, indicating their potential as an anticancer drug delivery system. X‐ray‐responsive bionic nanocapsules with reversible and tunable permeability are prepared by cross‐linking the self‐assembled triblock polymer poly(ethylene glycol)‐b‐polythymine‐b‐polyazobenzene (PETAzo) with adenine‐modified zinc sulfide nanoparticles (ZnS‐A NPs) through nucleobase pairing. The ZnS‐A NPs cross‐link PETAzo and convert X‐rays to UV light to induce azobenzene isomerization, which allows controlled diffusion of the active payloads across the bilayer membrane.
doi_str_mv 10.1002/adma.201903443
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Bionic nanocapsules are designed by cross‐linking polythymine and photoisomerized polyazobenzene (PETAzo) with adenine‐modified ZnS (ZnS‐A) nanoparticles (NPs) via nucleobase pairing. The ZnS‐A NPs convert X‐rays into UV radiation that isomerizes the azobenzene groups, which allows controlled diffusion of the active payloads across the bilayer membranes. In addition, the nucleobase pairing interactions between PETAzo and ZnS‐A prevent drug leakage during their in vivo circulation, which not only enhances tumor accumulation but also maintains stability. These nanocapsules with tunable permeability show prolonged retention, remotely controlled drug release, enhanced targeted accumulation, and effective antitumor effects, indicating their potential as an anticancer drug delivery system. X‐ray‐responsive bionic nanocapsules with reversible and tunable permeability are prepared by cross‐linking the self‐assembled triblock polymer poly(ethylene glycol)‐b‐polythymine‐b‐polyazobenzene (PETAzo) with adenine‐modified zinc sulfide nanoparticles (ZnS‐A NPs) through nucleobase pairing. 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Bionic nanocapsules are designed by cross‐linking polythymine and photoisomerized polyazobenzene (PETAzo) with adenine‐modified ZnS (ZnS‐A) nanoparticles (NPs) via nucleobase pairing. The ZnS‐A NPs convert X‐rays into UV radiation that isomerizes the azobenzene groups, which allows controlled diffusion of the active payloads across the bilayer membranes. In addition, the nucleobase pairing interactions between PETAzo and ZnS‐A prevent drug leakage during their in vivo circulation, which not only enhances tumor accumulation but also maintains stability. These nanocapsules with tunable permeability show prolonged retention, remotely controlled drug release, enhanced targeted accumulation, and effective antitumor effects, indicating their potential as an anticancer drug delivery system. 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subjects Accumulation
Active control
Adenine - chemistry
Adsorption
Animals
Anticancer properties
Azo Compounds - chemistry
azobenzene
Base Pairing
Bilayers
Biomimetic Materials - chemistry
Bionics
Cell Line, Tumor
Control stability
controlled drug release
Disruption
Drug Carriers - chemistry
Drug delivery systems
Humans
Isomerism
Mice
Nanocapsules - chemistry
Nanoparticles
nucleobase pairing
Payloads
Permeability
Photochemical Processes
Remote control
Serum Albumin, Bovine - chemistry
Sulfides - chemistry
Thymine - chemistry
Ultraviolet radiation
X-Rays
Zinc Compounds - chemistry
Zinc sulfide
title X‐ray‐Controlled Bilayer Permeability of Bionic Nanocapsules Stabilized by Nucleobase Pairing Interactions for Pulsatile Drug Delivery
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