Magneto- and opto-stimuli responsive nanofibers as a controlled drug delivery system

© 2021 IOP Publishing Ltd..

The drawbacks of conventional drug administration include repeated administration, non-specific biodistribution in the body's systems, the long-term unsustainability of drug molecules, and high global cytotoxicity, posing a challenge for the efficient treatment of chronic diseases that require varying drug dosages over time for optimal therapeutic efficacy. Most controlled-release methods encapsulate drug molecules in biodegradable materials that dissolve over time to release the drug, making it difficult to deliver drugs on a schedule. To address these limitations, we developed a magneto-, opto-stimuli responsive drug delivery system based on functionalized electrospun nanofibers loaded with superparamagnetic iron oxide nanoparticles (SPIONs). We exploited the Néel relaxation effect of SPIONs, where heat generated from vibrating SPIONs under exogenously applied magnetic fields or laser illumination induced structural changes of the thermo-sensitive nanofibers that encapsulate the particles. We showed that this structural change of nanofibers is the governing factor in controlling the release of dye molecules, used as a model drug and co-encapsulated within the nanofibers. We also showed that the degree of nanofiber structural change depends on SPION loading and duration of stimulation, demonstrating the tunability of the drug release profile. Overall, we demonstrated the potential of SPION-embedded thermoplastic nanofibers as an attractive platform for on-demand drug delivery.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:32

Enthalten in:

Nanotechnology - 32(2021), 50 vom: 06. Okt.

Sprache:

Englisch

Beteiligte Personen:

Banerjee, Aihik [VerfasserIn]
Jariwala, Tanvi [VerfasserIn]
Baek, Youn-Kyung [VerfasserIn]
To, Dung Thi Hanh [VerfasserIn]
Tai, Youyi [VerfasserIn]
Liu, Junze [VerfasserIn]
Park, Hyle [VerfasserIn]
Myung, Nosang V [VerfasserIn]
Nam, Jin [VerfasserIn]

Links:

Volltext

Themen:

1K09F3G675
24980-41-4
Drug Carriers
Drug delivery
Electrospun nanofiber
Ferric Compounds
Ferric oxide
Journal Article
K7G5SCF8IL
Magnetite Nanoparticles
Polycaprolactone
Polyesters
Rhodamine B
Rhodamines
Stimuli-responsive
Superparamagnetic nanoparticle

Anmerkungen:

Date Completed 31.01.2022

Date Revised 31.01.2022

published: Electronic

Citation Status MEDLINE

doi:

10.1088/1361-6528/ac2700

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM330674781