Sharmila Queenthy S

Sharmila Queenthy.S is currently an Associate Professor at Department of Chemistry, Saveetha Engineering College, Chennai. Prior to her recent appointment, she was an Assistant Professor in Chemistry at Waljat College of Applied Science, Oman. Dr. Queenthy received her M.Sc. Chemistry degree in 1996 at Mangalore University, Karnataka, M.Phil Chemistry degree in 2000 at Madras University, Chennai and Ph.D Chemistry in 2016 at Manonmaniam Sundaranar University, Tamil Nadu, India and additionally she have completed B.Ed & M.Ed degree. She has 15years of research experience. The main research activity is devoted to study the beneficial effects of natural products in myocardial infarction. She has published 8 research papers in peer-reviewed International journals and participated in several high profile conferences.

EDUCATION

M.Sc, M.Ed, M.Phil, PhD

RESEARCH, TEACHING, or OTHER INTERESTS

General Chemistry, Pharmacology, Toxicology and Pharmaceutics, Multidisciplinary, Renewable Energy, Sustainability and the Environment

Scopus Publications

Enhanced corrosion inhibition effect of sodium tartrate on copper in potable water
Ramasamy Sudhakaran, Thiagarajan Deepa, Munusamy Thirumavalavan, Sharmila Queenthy Sabarimuthu, Sellamuthu Babu, Thayuman Asokan, Abdulrahman I. Almansour, Pandian Bothi Raja, Karthikeyan Perumal
Journal of King Saud University Science, 2023
In this study we have reported sodium tartrate (ST) and Zn2+ as the potential mixed corrosion inhibitors for copper corrosion in drinking water, by using electrochemical polarization technique. The results of potentio-dynamic polarization indicated that sodium tartrate could be used as mixed type inhibitor with Zn2+. ST was found to be 92% effective for slowing down both the anodic and cathodic reaction rates. It was additionally found that ST could coat the surface of copper to prevent it from conducting electricity. As the inhibitor concentration increased, the stability of the formed protective layer was also improved. The results obtained from studies like SEM, EDAX, AFM, and water contact angle clearly indicated the development of a barrier by inducing the lotus effect on copper surface. The water contact angle measurement results suggested that the coating formed in the presence of inhibitor was superhydrophobic, and the surface was homogeneous.
Trisodium citrate as a potential and eco-friendly corrosion inhibitor of copper in potable water
Ramasamy Sudhakaran, Thiagarajan Deepa, Munusamy Thirumavalavan, Sharmila Queenthy Sabarimuthu, Sellamuthu Babu, Thayuman Asokan, Pandian Bothi Raja, Natarajan Arumugam, Karthikeyan Perumal, Sinouvassane Djearamane, Lai-Hock Tey, Saminathan Kayarohanam
Journal of King Saud University Science, 2023
In this work, the mixture of trisodium cittrate and Zn2+ was used as binary (hetero type) inhibitor for corrosion inhibition of copper metal in potable water. The binary inhibitor system (Zn2+ and trisodium citrate) was used to form hydrophobic surfaces on copper submerged in potable water. Water contact angle (WCA) was found to be 155°4° when the inhibitor was present, whereas it was 84°2° when there was no inhibitor. These observations suggested the development of superhydrophobic layer on the surface of copper in drinkable water. Electrochemical impedance spectroscopy (EIS – AC mode), and potentiodynamic polarization (DC mode) experiments conveyed that the copper surface could be protected by utilizing the mixture of trisodium citrate and Zn2+ in potable water. The morphological studies including SEM (coupled with EDX), AFM, and WCA were evidenced the formulation of a hetero-type inhibitor for the corrosion inhibition of copper in potable water. In this study, the decline in the double-layer capacitance and the rise in the charge transfer resistance were due to the adsorption of inhibitor confirming the development of protective layer, which EIS, SEM, EDX, AFM, and WCA studies also supported. Thus, there was a synergism observed between TSC and Zn2+, and the formulation consisting of TSC and Zn2+ provided 83% of inhibition efficiency (IEp). So, it was suggested that the approach reported in this study could be a simple method for obtaining the superhydrophobic copper surface.
An inter-institutional and inter-disciplinary collaborative learning to in-silico motif discovery in molecular sequences
Salwa Fatima Ali Mohsin, Smitha Sunil Kumaran Nair, Saqar Said Nasser Al Maskari, Mohamed Yousuf Said Al Rawahi, Shobhy Sosa Andrews, Jenifer Caroline Johnson, Sharmila Queenthy, Akhila Rajan
IEEE Global Engineering Education Conference Educon, 2019
Collaborative learning boosts student involvement and engagement to be responsible and accountable for the success of their own learning. However, developing critical collaborative skill is imperative for students to allow them to work in a collaborative environment. The proposed research followed an inter-institutional and inter-disciplinary collaborative approach where staff and students of Computing and Biotechnology Departments of two different Higher Education Institutions (HEIs) in Sultanate of Oman, collaboratively worked on solving a biological problem computationally. Ideas and information amongst students and staff were exchanged through social media platforms. Finally, the research outcome of the collaborative effort resulted in the development of a software which is freely accessible. The research paper describes the basis of setting up a collaborative research, implementation of the problem statement, final outcome of the collaboration, learner attributes achieved, challenges faced, and recommendations to the significance of inter-departmental collaborative efforts in HEIs.
Diosmin Prevents Isoproterenol-Induced Heart Mitochondrial Oxidative Stress in Rats
S. Sharmila Queenthy, P. Stanely Mainzen Prince, Babu John
Cardiovascular Toxicology, 2018
Diosmin prevents left ventricular hypertrophy, adenosine triphosphatases dysfunction and electrolyte imbalance in experimentally induced myocardial infarcted rats
Sharmila Queenthy Sabarimuthu, Stanely Mainzen Prince Ponnian, Babu John
European Journal of Pharmacology, 2017
Diosmin exhibits anti-hyperlipidemic effects in isoproterenol induced myocardial infarcted rats
S.Sharmila Queenthy, Babu John
European Journal of Pharmacology, 2013

Publications

1. S. Sharmila Queenthy and M.Thirumavalavan “Unlocking the learning potential: Exploring the outcome of jigsaw-based cooperative learning on the scholastic achievement”, December 2024, DOI:10.1201/9781003587538-51, In book: Pedagogical Revelations and Emerging Trends (

2. R. Ravichandran, S. Darlin Quine, S. Sharmila Queenthy and Ilavarasan M. Dhamu “Preparation, Characterization and Conductivity Studies of SiO2 doped rGO-WO3 Composite for Battery Application” Asian Journal of Chemistry, 2024, Vol. 36, (11).

3. Munusamy Thirumavalavan, Kalpana Sugumar, Sharmila Queenthy Sabarimuthu “A Review on Recent Trends in Green Synthesis, Pharmaceutical and Medical Applications of Nano ZnO” Inorganic Chemistry Communications 2024, 406.113002.

4. N. Elangovan, Natarajan Arumugam, Munusamy Thirumavalavan, Sharmila Queenthy Sabarimuthu, R. Padmanaban Jebasingh Bhagavathsingh, Shanty Mathew“Solute-solvent interaction and adsorption studies of sulpha drug derivative: A DFT study” J. Mol. Liquids, 2024, 406, 125150. (Chemistry and Engineering, Multidisciplinary).

5. Ramasamy Sudhakaran*, Thiyagarajan Deepa, Munusamy Thirumavalavan*,Sharmila Queenthy Sabarimuthu, Sellamuthu Babu, Thayuman Asokan, Abdulrahman I. Almansour, Pandian Bothi Raja, Karthikeyan Perumal “Enhanced corrosion inhibition effect of sodium tartrate on copper in potable water”J. King Saud Univ., 2023, 35 (9), 102921.

6. Ramasamy Sudhakaran, Thiyagarajan Deepa, Munusamy Thirumavalavan, Sharmila Queenthy