Cited by 93Photoacoustic and Ultrasonic ImagingNanoplatforms for cancer theranosticsNanoparticle-Based Drug Delivery

Indocyanine Green J Aggregates in Polymersomes for Near-Infrared Photoacoustic Imaging

Changalvaie, Behzad, Han, Sangheon, Moaseri, Ehsan, Scaletti, Federica, Truong, Lauren, Caplan, Rosalie, Cao, Alice, Bouchard, Richard +3 more·2019·ACS Applied Materials & Interfaces

Abstract

Clinical translation of photoacoustic imaging (PAI) has been limited by the lack of near-infrared (NIR) contrast agents with low toxicity required for regulatory approval. Herein, J aggregates of indocyanine green (ICG) with strong NIR absorbance were encapsulated at high loadings within small 77 nm polymersomes (nanocapsules) composed of poly(lactide- co -glycolide- b -poly(ethylene glycol)) (PLGA- b -PEG) bilayers, thus enabling PAI of of breast and ovarian cancer cells with high specificity and a sensitivity at the level of ∼100 total cells. All of the major components of the polymersomes are FDA approved and used in the clinic. During formation of polymersomes with a water-in-oil-in-water double emulsion process, loss of ICG from the ICG J aggregates was minimized by coating them with a layer of branched polyethylenimine and by providing excess “sacrificial” ICG to adsorb at the oil–water interfaces. The encapsulated J aggregates were protected against dissociation by the polymersome shell for 24 h in 100% fetal bovine serum, after which the polymersomes biodegraded and the J aggregates dissociated to ICG monomers.

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Crossref · 10.1021/acsami.9b14519

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Authors
Changalvaie, B., Han, S., Moaseri, E., Scaletti, F., Truong, L., Caplan, R., Cao, A., Bouchard, R., Truskett, T. M., Sokolov, K. V., & Johnston, K. P.
Affiliations
  • Texas Materials Institute (US)
  • The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Johnston, Keith P.
Venue
ACS Applied Materials & Interfaces
Published
2019-12-05
Volume
11
Issue
50
Pages
46437-46450
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2994591510
Cited by
93
References
70
Citations by year
2026: 14 · 2025: 15 · 2024: 21 · 2023: 18 · 2022: 16 · 2021: 5 · 2020: 4
FWCI
2.20
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Welch Foundation (F-1696, F-1319)
  • Cancer Prevention and Research Institute of Texas (RP170314)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Photoacoustic and Ultrasonic Imaging
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
indocyanine green, J-aggregates, polymersomes, breast cancer, ovarian cancer, cancer cell imaging, polyethyleneimine coating, water-in-oil-in-water emulsion, contrast media
MeSH terms
Animals, Breast Neoplasms, Contrast Media, Emulsions, Female, Humans, Indocyanine Green, Mice, Nude, Oils, Ovarian Neoplasms, Polyethylene Glycols, Polyglactin 910, Water, Cell Line, Tumor, Mice, Nanocapsules, Molecular Imaging, Photoacoustic Techniques

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