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ISSN: 2157-7439

Journal of Nanomedicine & Nanotechnology
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Research Article

Engineered Narrow Size Distribution High Molecular Weight Proteinoids, Proteinoid-Poly(L-Lactic Acid) Copolymers and Nano/Micro-Hollow Particles for Biomedical Applications

Michal Kolitz-Domb and Shlomo Margel*

The Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan, 52900, Israel

*Corresponding Author:
Shlomo Margel
The Institute of Nanotechnology and Advanced Materials
Department of Chemistry, Bar-Ilan University
Ramat-Gan 52900, Israel
Tel: +972-3-5318861
E-mail: [email protected]

Received Date: July 16, 2014; Accepted Date: August 08, 2014; Published Date: August 12, 2014

Citation: Kolitz-Domb M, Margel S (2014) Engineered Narrow Size Distribution High Molecular Weight Proteinoids, Proteinoid-Poly(L-Lactic Acid) Copolymers and Nano/Micro-Hollow Particles for Biomedical Applications. J Nanomed Nanotechnol 5:216. doi:10.4172/2157-7439.1000216

Copyright: © 2014 Kolitz-Domb M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Proteinoids are unusual polymers formed by thermal condensation of amino acids. Several types of proteinoids made of one to three different amino acids, in absence or presence, of low molecular weight poly(L-lactic acid) (PLLA), were synthesized. The polymerization kinetics, molecular weights and physical and mechanical properties of these proteinoids were elucidated. The ability to obtain several high-MW durable proteinoids, by using different amino acids as building blocks, along with incorporating PLLA in their structure, yields a new perspective of biodegradable polymers and polymer particles. Under suitable gentle conditions, the proteinoids can self-assemble to form nanoand micron-sized hollow particles of relatively narrow size distribution. This self-assembly process was used for encapsulation of different molecules within the produced proteinoid particles. One of the encapsulated materials used was indocyanine green (ICG), a known and FDA-approved near-IR dye used for medical cancer diagnosis. The ICG-encapsulated proteinoid particles were tested for biodistribution in mice. The proteinoid particles are nontoxic and stable; hence, they may be excellent candidates for various biomedical applications, e.g., cell labeling and separation, controlled release, drug targeting, etc.

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