Cited by 56Advancements in Transdermal Drug DeliveryElectrospun Nanofibers in Biomedical ApplicationsAdvanced Drug Delivery Systems

Smart polymeric nanofibers for topical delivery of levothyroxine

Open access
Fathi Azarbayjani, Anahita, Venugopal, Jayarama Reddy, Ramakrishna, Seeram, Lim, Fung Chye, Chan, Yew Weng, Chan, Sui Yung·2010·Journal of Pharmacy & Pharmaceutical Sciences

Abstract

Topical administration of levothyroxine (T₄) helps to reduces deposits of adipose tissue on skin. The question is whether topical application of T₄ could lead to systemic effects. In the present study a series of nanofibrous membranes were electrospun into blends of poly vinyl alcohol (PVA) and poly-N-isopropylacrylamide (PNIPAM) to develop a sustained topical delivery of T₄. The polymeric nanofiber mats were characterized by field emission scanning electron microscopy (FESEM) and fourier transform infrared (FTIR) spectroscopy. In vitro permeation of the drug from the polymeric nanofibers was studied using excised human skin and the permeation mechanism investigated using confocal microscopy. It was observed that polymeric nanofibers were able to sustain the penetration of T₄ to the skin and help maintain the effective drug concentration in the skin layers for longer period of time. These formulations may have potential uses in topical skin products and can help to increase the accumulation of the active compound on the skin surface thus minimize the adverse side effects which may be caused by systemic absorption. This may result in great improvement in consumer compliance, avoid frequent dosing and enhance the therapeutic effectiveness.

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  • Azarbayjani et al. decreased LT4 skin permeability to almost an undetectable level by encapsulating LT4 into sustained-release nanoparticles.

    “Azarbayjani et al further decreased the permeability to almost an undetectable level by encapsulating LT4 into sustained-release nanoparticles (266, 267).”
  • 50% to 70% of LT4 was gradually released in vitro during the first 15 to 30 minutes, with the remainder released in the next 2 to 7 hours.

    “However, 50% to 70% of LT4 was gradually released in vitro during the first 15 to 30 minutes, with the remainder being released in the next 2 to 7 hours, denoting an unsatisfying sustained-release profile.”

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Authors
Fathi Azarbayjani, A., Venugopal, J. R., Ramakrishna, S., Lim, F. C., Chan, Y. W., & Chan, S. Y.
Affiliations
  • National University of Singapore (SG)
  • Singapore General Hospital (SG)
Venue
Journal of Pharmacy & Pharmaceutical Sciences
Published
2010-09-29
Volume
13
Issue
3
Pages
400
ISSN
1482-1826 (ISSN-L)
OpenAlex
W2162761364
Cited by
56
References
42
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 3 · 2020: 6 · 2019: 3 · 2018: 2 · 2017: 6 · 2016: 3 · 2015: 9 · 2014: 4 · 2013: 3 · 2012: 3
FWCI
1.55
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Pharmacy & Pharmaceutical Sciences (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advancements in Transdermal Drug Delivery
  • Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
Keywords
levothyroxine, topical drug delivery, polymer nanofibers, electrospinning, polyvinyl alcohol, poly(N-isopropylacrylamide), nanofibrous membranes, sustained drug release, skin permeation, human skin, permeation mechanism, antithyroid drugs
MeSH terms
Acrylic Resins, Administration, Topical, Humans, Indoles, Microscopy, Electron, Scanning, Polyvinyl Alcohol, Skin, Thyroxine, Spectroscopy, Fourier Transform Infrared, Fluorescein, Hormone Replacement Therapy, Nanofibers

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