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Rice husk ash nanosilica to inhibit human breast cancer cell line (3T3)

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Abstract

NaOH treatment on phase, purity and particle size of rice husk nanosilica were investigated employing alkaline-extraction–acid-precipitation method. Mild reaction at lower NaOH (1.5 N) revealed small and fine particles (600 nm) due to moderate reaction rate. Morphology of human breast cancer cell line (3T3) revealed that suggestive cell distress effects were more pronounced at 500 µg/ml silica dosages which are in agreement with cell viability decrease (~50 %). Among different silica dosages, 10 µg/ml was found to have highest cell viability (∼70 ± 2 %) capable of increasing dissolved oxygen level while viability was almost decreased to 27 ± 5 % due to toxic effect caused at higher SiO2 dosage and could be a potential candidate best suited for biomedical applications through development of sustainable materials.

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Acknowledgments

This work was supported by Chungnam National University Research Fund (2014).

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Authors and Affiliations

  1. Department of Nanomaterials Engineering, Chungnam National University, Daejeon, 305-764, South Korea

    R. Yuvakkumar, A. Joseph Nathanael & S. I. Hong

  2. Center for Nanoscience and Technology, K. S. Rangasamy College of Technology, Tiruchengode, 637 215, Tamil Nadu, India

    R. Yuvakkumar & V. Rajendran

Authors
  1. R. Yuvakkumar
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  2. A. Joseph Nathanael
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  3. V. Rajendran
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  4. S. I. Hong
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Corresponding authors

Correspondence to V. Rajendran or S. I. Hong.

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Yuvakkumar, R., Nathanael, A.J., Rajendran, V. et al. Rice husk ash nanosilica to inhibit human breast cancer cell line (3T3). J Sol-Gel Sci Technol 72, 198–205 (2014). https://doi.org/10.1007/s10971-014-3455-9

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  • DOI: https://doi.org/10.1007/s10971-014-3455-9

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