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New Data from Nanoelectronics and MEMS Laboratory Illuminate Findings in Breast Cancer

March 4, 2014

By a News Reporter-Staff News Editor at Cancer Weekly -- Investigators publish new report on Oncology. According to news reporting originating from Pathum Thani, Thailand, by NewsRx correspondents, research stated, "Graphene is a novel carbon-based material widely studied in bio-electrochemical fields because of its high electrical conductivity and excellent electrocatalytic activity. However, its biological applications have been limited due to the lack of understanding of its compatibility with numerous biological entities."

Our news editors obtained a quote from the research from Nanoelectronics and MEMS Laboratory, "In this paper, cytoxicities of MDA-MB-231 breast cancer cells (MDA cells) on carbon paste (CP) and graphene-carbon paste (GCP) substrates are assessed. GCP was prepared by mixing graphene powder into carbon paste with different graphene contents. Cytotoxic effect was evaluated from cell viability, cell adhesion, ROS production and fluorescence staining studies. Cell viability on GCP substrate was found to initially increase as graphene content increases from 0 to 2.5 wt% but then decrease as the content increases further. In addition, the viability decreases with time for all substrates. Similarly, graphene concentration affected the number of adherent cells in the same manner as the cell viability. Likewise, reactive oxygen species (ROS) induced by carbon substrate increased with time and decreased with small graphene inclusion, confirming that low graphene content led to lower cytotoxicity. Moreover, confluence of MDA cells on substrate evaluated using Hoechst 33342 fluorescence staining was also found to be enhanced at low graphene concentration."

According to the news editors, the research concluded: "Therefore, low-content graphene incorporation can effectively improve biocompatibility of carbon-based materials with MDA-MB-231 breast cancer cells, enabling potential applications such as electrochemical electrode for cell study."

For more information on this research see: Cytotoxicity assessment of MDA-MB-231 breast cancer cells on screen-printed graphene-carbon paste substrate. Colloids and Surfaces B, Biointerfaces, 2014;113():190-7 (see also Oncology).

The news editors report that additional information may be obtained by contacting U. Waiwijit, Nanoelectronics and MEMS Laboratory, National Electronics and Computer Technology Center, 112 Thailand Science Park, Phahon Yothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand. Additional authors for this research include W. Kandhavivorn, B. Oonkhanond, T. Lomas, D. Phokaratkul, A. Wisitsoraat and A. Tuantranont.

Keywords for this news article include: Asia, Thailand, Oncology, Chemistry, Pathum Thani, Breast Cancer, Women's Health, Electrochemical.

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Source: Cancer Weekly

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