Chiral Supraparticles for Controllable Nanomedicine

Jihyeon Yeom, Pedro P.G. Guimaraes, Hyo Min Ahn, Bo Kyeong Jung, Quanyin Hu, Kevin McHugh, Michael J. Mitchell, Chae Ok Yun, Robert Langer, Ana Jaklenec

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7 Scopus citations


Chirality is ubiquitous in nature and hard-wired into every biological system. Despite the prevalence of chirality in biological systems, controlling biomaterial chirality to influence interactions with cells has only recently been explored. Chiral-engineered supraparticles (SPs) that interact differentially with cells and proteins depending on their handedness are presented. SPs coordinated with d-chirality demonstrate greater than threefold enhanced cell membrane penetration in breast, cervical, and multiple myeloma cancer cells. Quartz crystal microbalance with dissipation and isothermal titration calorimetry measurements reveal the mechanism of these chiral-specific interactions. Thermodynamically, d-SPs show more stable adhesion to lipid layers composed of phospholipids and cholesterol compared to l-SPs. In vivo, d-SPs exhibit superior stability and longer biological half-lives likely due to opposite chirality and thus protection from endogenous proteins including proteases. This work shows that incorporating d-chirality into nanosystems enhances uptake by cancer cells and prolonged in vivo stability in circulation, providing support for the importance of chirality in biomaterials. Thus, chiral nanosystems may have the potential to provide a new level of control for drug delivery systems, tumor detection markers, biosensors, and other biomaterial-based devices.

Original languageEnglish
Article number1903878
JournalAdvanced Materials
Issue number1
StatePublished - 2020 Jan 1


  • chirality
  • drug delivery systems
  • nanomedicine
  • self-assembly
  • supraparticles

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    Yeom, J., Guimaraes, P. P. G., Ahn, H. M., Jung, B. K., Hu, Q., McHugh, K., Mitchell, M. J., Yun, C. O., Langer, R., & Jaklenec, A. (2020). Chiral Supraparticles for Controllable Nanomedicine. Advanced Materials, 32(1), [1903878].