Development of nanopackaging for storage and transport of loaded lipid nanoparticles

Easily deploying new vaccines globally to combat disease outbreaks has been highlighted as a major necessity by the World Health Organization. RNA-based vaccines using lipid nanoparticles (LNPs) as a drug delivery system were employed to great effect during the recent COVID-19 pandemic. However, LNP...

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Main Authors: Kaur, A, Darvill, D, Xiang, S, Heng, JYY, Petrov, PK, Hoye, RLZ, Chen, R
Format: Journal article
Language:English
Published: American Chemical Society 2023
Subjects:
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author Kaur, A
Darvill, D
Xiang, S
Heng, JYY
Petrov, PK
Hoye, RLZ
Chen, R
author_facet Kaur, A
Darvill, D
Xiang, S
Heng, JYY
Petrov, PK
Hoye, RLZ
Chen, R
author_sort Kaur, A
collection OXFORD
description Easily deploying new vaccines globally to combat disease outbreaks has been highlighted as a major necessity by the World Health Organization. RNA-based vaccines using lipid nanoparticles (LNPs) as a drug delivery system were employed to great effect during the recent COVID-19 pandemic. However, LNPs are still unstable at room temperature and agglomerate over time during storage, rendering them ineffective for intracellular delivery. We demonstrate the suitability of nanohole arrays (nanopackaging) as patterned surfaces to separate and store functionalized LNPs (fLNPs) in individual recesses, which can be expanded to other therapeutics. Encapsulating calcein as a model drug, we show through confocal microscopy the effective loading of fLNPs into our nanopackaging for both wet and dry systems. We prove quantifiably pH-mediated capture and subsequent unloading of over 30% of the fLNPs using QCM-D on alumina surfaces altering the pH from 5.5 to 7, displaying controllable storage at the nanoscale.
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spelling oxford-uuid:cf0458be-1c3f-480e-9ae0-9bf1dd70e0192023-08-23T16:06:18ZDevelopment of nanopackaging for storage and transport of loaded lipid nanoparticlesJournal articlehttp://purl.org/coar/resource_type/c_545buuid:cf0458be-1c3f-480e-9ae0-9bf1dd70e019Drug deliveryOxidesVaccinationpHPolymersEnglishSymplectic ElementsAmerican Chemical Society2023Kaur, ADarvill, DXiang, SHeng, JYYPetrov, PKHoye, RLZChen, REasily deploying new vaccines globally to combat disease outbreaks has been highlighted as a major necessity by the World Health Organization. RNA-based vaccines using lipid nanoparticles (LNPs) as a drug delivery system were employed to great effect during the recent COVID-19 pandemic. However, LNPs are still unstable at room temperature and agglomerate over time during storage, rendering them ineffective for intracellular delivery. We demonstrate the suitability of nanohole arrays (nanopackaging) as patterned surfaces to separate and store functionalized LNPs (fLNPs) in individual recesses, which can be expanded to other therapeutics. Encapsulating calcein as a model drug, we show through confocal microscopy the effective loading of fLNPs into our nanopackaging for both wet and dry systems. We prove quantifiably pH-mediated capture and subsequent unloading of over 30% of the fLNPs using QCM-D on alumina surfaces altering the pH from 5.5 to 7, displaying controllable storage at the nanoscale.
spellingShingle Drug delivery
Oxides
Vaccination
pH
Polymers
Kaur, A
Darvill, D
Xiang, S
Heng, JYY
Petrov, PK
Hoye, RLZ
Chen, R
Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title_full Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title_fullStr Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title_full_unstemmed Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title_short Development of nanopackaging for storage and transport of loaded lipid nanoparticles
title_sort development of nanopackaging for storage and transport of loaded lipid nanoparticles
topic Drug delivery
Oxides
Vaccination
pH
Polymers
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