PMID- 35510700 OWN - NLM STAT- MEDLINE DCOM- 20220520 LR - 20220520 IS - 2040-3372 (Electronic) IS - 2040-3364 (Linking) VI - 14 IP - 19 DP - 2022 May 19 TI - Doxorubicin delivery performance of superparamagnetic carbon multi-core shell nanoparticles: pH dependence, stability and kinetic insight. PG - 7220-7232 LID - 10.1039/d1nr08550f [doi] AB - In the past decade, magnetic nanoparticles (MNPs) have been among the most attractive nanomaterials used in different fields, such as environmental and biomedical applications. The possibility of designing nanoparticles with different functionalities allows for advancing the biomedical applications of these materials. Additionally, the magnetic characteristics of the nanoparticles enable the use of magnetic fields to drive the nanoparticles to the desired sites of delivery. In this context, the development of new MNPs in new approaches for drug delivery systems (DDSs) for cancer treatment has increased. However, the synthesis of nanoparticles with high colloidal stability triggered drug delivery, and good biocompatibility remains a challenge. Herein, multi-core shell MNPs functionalized with Pluronic (R) F-127 were prepared and thoroughly characterized as drug carriers for doxorubicin delivery. The functionalized nanoparticles have an average size of 17.71 +/- 4.2 nm, high water colloidal stability, and superparamagnetic behavior. In addition, the nanoparticles were able to load 936 mug of DOX per mg of functionalized nanomaterial. Drug release studies at different pH values evidenced a pH-triggered DOX release effect. An increase of 62% in cumulative drug release was observed at pH simulating tumor endosome/lysosome microenvironments (pH 4.5) compared to physiological conditions (pH 7.4). In addition, an innovative dynamic drug delivery study was performed as a function of pH. The results from this test confirmed the pH-induced doxorubicin release capability of carbon multi-core shell MNPs. The validity of traditional kinetic models to fit dynamic pH-dependent drug release was also studied for predictive purposes. FAU - Silva, Adriano Santos AU - Silva AS AUID- ORCID: 0000-0002-6795-2335 AD - Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus Santa Apolonia, 5300-253, Braganca, Portugal. FAU - Diaz de Tuesta, Jose Luis AU - Diaz de Tuesta JL AUID- ORCID: 0000-0003-2408-087X AD - Universidade Tecnologica Federal do Parana, Campus Ponta Grossa, 84017-220, Ponta Grossa, Parana, Brazil. jl.diazdetuesta@ipb.pt. FAU - Sayuri Berberich, Thais AU - Sayuri Berberich T AD - Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus Santa Apolonia, 5300-253, Braganca, Portugal. AD - Universidade Tecnologica Federal do Parana, Campus Ponta Grossa, 84017-220, Ponta Grossa, Parana, Brazil. jl.diazdetuesta@ipb.pt. FAU - Delezuk Inglez, Simone AU - Delezuk Inglez S AD - Universidade Tecnologica Federal do Parana, Campus Ponta Grossa, 84017-220, Ponta Grossa, Parana, Brazil. jl.diazdetuesta@ipb.pt. FAU - Bertao, Ana Raquel AU - Bertao AR AD - Advanced (Magnetic) Theranostic Nanostructures Lab, International Iberian Nanotechnology Laboratory, Av. Mestre Jose Veiga s/n, 4715-330 Braga, Portugal. FAU - Caha, Ihsan AU - Caha I AUID- ORCID: 0000-0002-8212-874X AD - Advanced (Magnetic) Theranostic Nanostructures Lab, International Iberian Nanotechnology Laboratory, Av. Mestre Jose Veiga s/n, 4715-330 Braga, Portugal. FAU - Deepak, Francis Leonard AU - Deepak FL AUID- ORCID: 0000-0002-3833-1775 AD - Advanced (Magnetic) Theranostic Nanostructures Lab, International Iberian Nanotechnology Laboratory, Av. Mestre Jose Veiga s/n, 4715-330 Braga, Portugal. FAU - Banobre-Lopez, Manuel AU - Banobre-Lopez M AUID- ORCID: 0000-0003-4319-2631 AD - Advanced (Magnetic) Theranostic Nanostructures Lab, International Iberian Nanotechnology Laboratory, Av. Mestre Jose Veiga s/n, 4715-330 Braga, Portugal. FAU - Gomes, Helder Teixeira AU - Gomes HT AD - Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus Santa Apolonia, 5300-253, Braganca, Portugal. LA - eng PT - Journal Article DEP - 20220519 PL - England TA - Nanoscale JT - Nanoscale JID - 101525249 RN - 0 (Drug Carriers) RN - 0 (Magnetite Nanoparticles) RN - 7440-44-0 (Carbon) RN - 80168379AG (Doxorubicin) SB - IM MH - Carbon MH - Doxorubicin/chemistry/pharmacology MH - Drug Carriers/chemistry MH - Drug Delivery Systems MH - Drug Liberation MH - Hydrogen-Ion Concentration MH - *Magnetite Nanoparticles/chemistry MH - *Nanoparticles EDAT- 2022/05/06 06:00 MHDA- 2022/05/21 06:00 CRDT- 2022/05/05 06:59 PHST- 2022/05/06 06:00 [pubmed] PHST- 2022/05/21 06:00 [medline] PHST- 2022/05/05 06:59 [entrez] AID - 10.1039/d1nr08550f [doi] PST - epublish SO - Nanoscale. 2022 May 19;14(19):7220-7232. doi: 10.1039/d1nr08550f.