Page 12 - CFM-Annual Newsletter 2021

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described the magnetic interactions of R and Fe ions in RFeO3 single crystals and the underlying
principles.
Translational Materials Research
Dr. Govindarajan Suresh, Senior Scientist, Cellivate Technologies Singapore, Cellivate
Technologies Singapore, June 30
th
Materials have made enormous impacts on human lives ever since the stone age. Dr.
Suresh discussed materials' macro, micro, and nano forms and their various
physicochemical properties. For example, a tailored ferromagnet at nanosize changes
magnetic state and becomes a super paramagnet, which acts as a potential drug carrier.

Patients with implanted peritoneal dialysis catheters suffer due to biofouling and
bacterial infection. Further, Dr. Suresh introduced a simple technique using micron-
thick antibacterial coating, potentially easing their agony and reducing the bacterial

infection rate. Aging develops saggy eyes, which ultimately affect one's confidence. The speaker also set
up a cost-effective 3D printed mask to eliminate this.

Magnetic properties of high-qualified (Bi1-xLax)(Fe, Co)O3 multiferroic thin films by
using a pulsed D.C. reactive sputtering method and demonstration of
magnetization reversal by the electric field
Dr. M. Kuppan, Research Engineer, Materials Research Center, Technology & Intellectual
property H.Q., TDK Corporation, Tokyo, Japan, August 30
th
Magnetic reversal using an electric field is a promising future technology for
multifunctional devices due to lower power consumption. Therefore, Multiferroic
materials with magneto-electric effect, which simultaneously exhibit spontaneous
polarization and magnetization, have received greater attention. Dr. Kuppan stressed

using microscopy techniques to visualize the electric and magnetic domain structures
of (Bi0.4La0.6)(Fe0.75Co0.25)O3. He further showed that such magnetization reversal

indicates the future realization of high-performance magnetic devices with low power
consumption.

Synthesis of Nano-Bioceramics for Biomedical Applications
Dr. Sarath Chandra Veerla, Nanomaterials for Photovoltaic and Biomaterials Laboratory (NPBL),
Godavari Institute of Engineering and Technology, Rajamahendravaram, Andhra Pradesh,
October 28
th
Biomaterials are synthetic materials used to replace part of a living system or function
in contact with living tissue. Dr. Sarath talked about bio ceramic-based materials that

have played a prominent role in repairing and regenerating the tissues in the human
body. He also discussed the magnetic properties of nHAp doped with different
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magnetic ions, such as Fe , Co , and Ag /Fe ions, nHAp nanocomposites. These
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nanocomposites can deliver the drug with multi-stage at specific-site could be used to
treat the malignant tumor without any bacterial side effect. Further, he showed the
impact of swift heavy Si ion irradiation on nanosize Fe-nHAp that has better antibacterial efficiency
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CFM Newsletter Jan. – Dec. 2021 12 Issue – 1