Cited by 54Nanoparticle-Based Drug DeliveryNitric Oxide and Endothelin EffectsLipid Membrane Structure and Behavior

Heat-activated sustaining nitric oxide release from zwitterionic diazeniumdiolate loaded in thermo-sensitive liposomes

Tai, Lin-Ai, Wang, Yu-Chao, Yang, Chung-Shi·2010·Nitric Oxide

Abstract

Zwitterionic diazeniumdiolate, a nitric oxide precursor, was dissolved in basic buffer solution (pH=9.0) and encapsulated in thermo-sensitive liposomes composed of phospholipids of different sensitive temperatures. The basic intra-liposomal environment dramatically delayed spontaneous NO release. When the liposomes were placed in physiological buffer solution and temperatures were increased to the sensitive temperatures of the phospholipids' membranes, extra-liposomal protons started to influx to collapse the pH gradient and subsequently induce a significant NO release. Moreover, the presence of a stronger pH gradient when the liposomes were applied to a more acidic environment caused a higher proton influx driving force to trigger the influx of protons and, subsequently, NO release. In this work, we demonstrate that thermo-sensitive liposomes can be used to create a stable pH gradient in a nanoenvironment entrapping zwitterionic diazeniumdiolate for sustained and heat/acid-activated NO release.

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Crossref · 10.1016/j.niox.2010.04.003

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  • Encapsulating N-diazeniumdiolates within pH- or thermo-sensitive liposomes achieves controlled release; pH or temperature fluctuations change proton influx through the biolayer membrane and induce significant NO release.

    “Other researchers have conducted further studies to encapsulate NO donors within pH126 or thermo-sensitive247 liposomes to achieve controlled release. In short, when N-diazeniumdiolates are encapsulated within liposomes, pH or temperature fluctuations change the proton influx through the biolayer membrane and subsequently induce a significant NO release.”

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Authors
Tai, L.-A., Wang, Y.-C., & Yang, C.-S.
Affiliations
National Health Research Institutes (TW)
Corresponding author
Yang, Chung-Shi
Venue
Nitric Oxide
Publisher
Elsevier BV
Published
2010-08
Volume
23
Issue
1
Pages
60-64
ISSN
1089-8603 (ISSN-L)
OpenAlex
W1975381476
Cited by
54
References
29
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 6 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 6 · 2015: 4 · 2013: 3 · 2012: 4
FWCI
1.05
Type
journal article
Language
en
Open access
closed
Locations
  • Nitric Oxide (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Health Research Institutes
Topics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
Keywords
nitric oxide release, pH gradient, proton influx, sustained drug release, liposome encapsulation
MeSH terms
Azo Compounds, Hot Temperature, Hydrogen-Ion Concentration, Liposomes, Nitric Oxide, Drug Delivery Systems, Nitric Oxide Donors

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