Current Status of Magnetite-Based Core@Shell Structures for Diagnosis and Therapy in Oncology Short running title: Biomedical Applications of Magnetite@Shell Structures

2015 ◽  
Vol 21 (37) ◽  
pp. 5417-5433 ◽  
Author(s):  
Ângela Andrade ◽  
José Fabris ◽  
Rosana Domingues ◽  
Márcio Pereira
2017 ◽  
Vol 12 (1) ◽  
pp. 78-86 ◽  
Author(s):  
Komail Boustani ◽  
Saber Farjami Shayesteh ◽  
Mojtaba Salouti ◽  
Atefeh Jafari ◽  
Alireza Ahadpour Shal

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 283 ◽  
Author(s):  
Catalina-Andreea Dascalu ◽  
Florin Miculescu ◽  
Aura-Catalina Mocanu ◽  
Andreea Elena Constantinescu ◽  
Tudor Mihai Butte ◽  
...  

Bone tissue engineering is constantly in need of new material development with improved biocompatibility or mechanical features closer to those of natural bone. Other important factors are the sustainability, cost, and origin of the natural precursors involved in the technological process. This study focused on two widely used polymers in tissue engineering, namely polylactic acid (PLA) and thermoplastic polyurethane (TPU), as well as bovine-bone-derived hydroxyapatite (HA) for the manufacturing of core-shell structures. In order to embed the ceramic particles on the polymeric filaments surface, the materials were introduced in an electrical oven at various temperatures and exposure times and under various pressing forces. The obtained core-shell structures were characterized in terms of morphology and composition, and a pull-out test was used to demonstrate the particles adhesion on the polymeric filaments structure. Thermal properties (modulated temperature and exposure time) and the pressing force’s influence upon HA particles’ insertion degree were evaluated. More to the point, the form variation factor and the mass variation led to the optimal technological parameters for the synthesis of core-shell materials for prospect additive manufacturing and regenerative medicine applications.


2018 ◽  
Vol 915 ◽  
pp. 163-168 ◽  
Author(s):  
Xiao Shan Zhu ◽  
Violeta G. Demillo ◽  
Si Qi Chen ◽  
Athanasios G. Mamalis

I-III-VI QDs (CuInS2/ZnS or AgInS2/ZnS core/shell structures) possess low toxicity, and are a logical replacement for cadmium-based QDs for biomedical applications. Our synthesis of I-III-VI QDs is based on thermal decomposition of less toxic precursors and can be easily scaled up for mass production for sustainable and reliable imaging and sensing experiments. Through nonstoichiometric composition adjustment, we synthesized I-III-VI QDs with reliable and controllable optical properties, including high QYs and tunable photoluminescence. We also developed new zwitterionic amphiphiles and applied them to encapsulate I-III-VI QDs to achieve colloidal stability in proteinaceous solutions with wide pH/ionic ranges, low non-specific binding, and easily bio-conjugation. On the basis of these developments, we applied our I-III-VI QDs in cellular imaging to to specifically target human brain tumor cells.


Nanoscale ◽  
2018 ◽  
Vol 10 (27) ◽  
pp. 12935-12956 ◽  
Author(s):  
Lucía Labrador-Páez ◽  
Erving C. Ximendes ◽  
Paloma Rodríguez-Sevilla ◽  
Dirk H. Ortgies ◽  
Ueslen Rocha ◽  
...  

The current status of the use of core–shell rare-earth-doped nanoparticles in biomedical applications is reviewed highlighting the most relevant advances.


2021 ◽  
Vol 261 ◽  
pp. 117849 ◽  
Author(s):  
Adrián Rojas ◽  
Eliezer Velásquez ◽  
Constanza Piña ◽  
María José Galotto ◽  
Carol López de Dicastillo

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 867
Author(s):  
Lin Guo ◽  
Zhu Mao ◽  
Sila Jin ◽  
Lin Zhu ◽  
Junqi Zhao ◽  
...  

Surface-enhanced Raman scattering (SERS) is a powerful tool in charge transfer (CT) process research. By analyzing the relative intensity of the characteristic bands in the bridging molecules, one can obtain detailed information about the CT between two materials. Herein, we synthesized a series of Au nanorods (NRs) with different length-to-diameter ratios (L/Ds) and used these Au NRs to prepare a series of core–shell structures with the same Cu2O thicknesses to form Au NR–4-mercaptobenzoic acid (MBA)@Cu2O core–shell structures. Surface plasmon resonance (SPR) absorption bands were adjusted by tuning the L/Ds of Au NR cores in these assemblies. SERS spectra of the core-shell structure were obtained under 633 and 785 nm laser excitations, and on the basis of the differences in the relative band strengths of these SERS spectra detected with the as-synthesized assemblies, we calculated the CT degree of the core–shell structure. We explored whether the Cu2O conduction band and valence band position and the SPR absorption band position together affect the CT process in the core–shell structure. In this work, we found that the specific surface area of the Au NRs could influence the CT process in Au NR–MBA@Cu2O core–shell structures, which has rarely been discussed before.


2021 ◽  
Author(s):  
Yingxue Tu ◽  
Caifen Lei ◽  
Fei Deng ◽  
Yiang Chen ◽  
Ying Wang ◽  
...  

Metal organic frameworks (MOFs) have the potential to boost the undervalued biomedical applications of metal ions. Such endeavor has been hindered by the challenge of how to avoid the (cyto)toxicity...


2016 ◽  
Vol 45 (44) ◽  
pp. 17980-17986 ◽  
Author(s):  
Hailong Yan ◽  
Tong Li ◽  
Yang Lu ◽  
Jinbing Cheng ◽  
Tao Peng ◽  
...  

In this article, ordered ZnO@ZnS core–shell structures have been produced on a stainless mesh by a two-step approach without using a template.


2007 ◽  
Vol 40 (15) ◽  
pp. 3349-3353 ◽  
Author(s):  
Edina Rusen ◽  
Cătălin Zaharia ◽  
Teodora Zecheru ◽  
Bogdan Mărculescu ◽  
Robert Filmon ◽  
...  

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