Sara Amelia Ramírez Pasten | Nanotechnology | Women Researcher Award

Prof. Dr. Sara Amelia Ramírez Pasten | Nanotechnology | Women Researcher Award

Researcher, Bernardo O’Higgins University, Chile

Dr. Sara Amelia Ramírez Pastén is a Chilean chemist and researcher with expertise in nanotechnology, electrochemical sensors, and antimicrobial materials. 🎓 She earned her Ph.D. in Chemistry from Universidad de Santiago de Chile in 2021 and currently works as a lecturer and principal investigator at Universidad Bernardo O’Higgins. Her work bridges science and entrepreneurship, developing nanomaterials for real-world healthcare applications. 🌍🔬

Professional Profile

ORCID

🎓 Education

She completed all her higher education at Universidad de Santiago de Chile, earning her chemistry degree, licentiate, and Ph.D. in Chemistry. 📘 Additionally, she undertook technical training in industrial safety and chemical labs during her early education, showcasing her strong practical foundation from an early stage. 🧑‍🔬

🧑‍🔬 Experience

Dr. Ramírez Pastén has served in academic and research roles at several Chilean institutions, including Universidad Central and Universidad del Desarrollo. 👩‍🏫 She completed a research internship in Spain and has held leadership positions in national research and entrepreneurial projects. Her experience spans lab teaching, project management, and nanotechnology innovation. 🔬

🔬 Research Interests

Her research focuses on nanotechnology, surface chemistry, and electrocatalysis, especially in developing nanostructured materials for antimicrobial and biomedical use. 🧫 She is passionate about applying science to solve public health challenges, including biosensors and anti-biofilm surfaces. 🧠⚗️

📚 Publications Top Notes

Antimicrobial Properties of a Novel PEGylated Copper Nanoparticle-Embedded Silicone Rubber with Potential for Use in Biomedical Applications
Journal: Polymers, 2025
Summary: This study investigates a novel silicone rubber material embedded with PEGylated copper nanoparticles, demonstrating significant antimicrobial properties suitable for biomedical applications.

Copper-Modified Cellulose Paper: A Comparative Study of How Antimicrobial Activity Is Affected by Particle Size and Testing Standards
Journal: International Journal of Molecular Sciences, 2025
Summary: The research compares the antimicrobial efficacy of copper-modified cellulose paper, highlighting the influence of particle size and testing standards on performance.

Fast and Easy Synthesis of Silver, Copper, and Bimetallic Nanoparticles on Cellulose Paper Assisted by Ultrasound
Journal: Ultrasonics Sonochemistry, 2023
Summary: This article presents an efficient method for synthesizing silver, copper, and bimetallic nanoparticles on cellulose paper using ultrasound, offering a scalable approach for material fabrication.

Molecular Anchoring with 4-Mercaptobenzoic Acid and 4-Aminothiophenol for Using Active Nanorods in the Detection of Dopamine
Journal: ECS Sensors Plus, 2022
Summary: The study explores the use of molecular anchors to enhance the sensitivity and selectivity of gold nanorods for dopamine detection, contributing to advancements in electrochemical sensors.

Mapping Experimental and Theoretical Reactivity Descriptors of Fe Macrocyclic Complexes Deposited on Graphite or on Multi-Walled Carbon Nanotubes for the Oxidation of Thiols: Thioglycolic Acid Oxidation
Journal: Electrochimica Acta, 2021
Summary: This research provides insights into the reactivity of Fe macrocyclic complexes, deposited on various substrates, for thiol oxidation, aiding in the design of efficient electrocatalysts.

🏆 Conclusion

Dr. Ramírez Pastén is a rising leader in nanoscience, with a proven record of research excellence, innovation, and entrepreneurship. 🥇 Her work integrates science and public health, producing materials that could transform medical treatment and infection control. She continues to drive impactful research, mentor students, and commercialize discoveries, making her a strong candidate for recognition. 💼🔬

Hemalatha Somireddi | Materials Science | Best Researcher Award

Assoc. Prof. Dr. Hemalatha Somireddi | Materials Science | Best Researcher Award 

Associate Professor, Raghu Engineering College, India

Dr. Hemalatha Somireddi is an accomplished academic and researcher in Mechanical Engineering with a specialization in Industrial and Manufacturing Systems. Currently serving as an Associate Professor at Raghu Engineering College, Visakhapatnam, she has consistently contributed to both teaching and applied research in her field. With over 17 years of teaching and industry experience, she is recognized for her expertise in supply chain modeling, performance evaluation of container terminals, and mechanical characterization of materials. Dr. Hemalatha is also an active contributor to academic and professional development through organizing seminars, guiding students, publishing technical papers, and securing patents. Her passion lies in bridging academic research with real-world engineering problems.

Profile

Orcid

Education 🎓

Dr. Hemalatha earned her Ph.D. in Mechanical Engineering from Jawaharlal Nehru Technological University, Kakinada, in 2020, where she focused on performance measurement frameworks for container terminals. She completed her Master’s in Industrial Engineering from Andhra University in 2012 with a CGPA of 8.1. Her undergraduate degree, a B.Tech in Mechanical Engineering, was awarded by JNTU Hyderabad in 2006. Her academic journey began with intermediate education at Guntur Vikas Junior College and SSC from a government high school in Srikakulam, reflecting her strong foundational knowledge and consistent academic performance.

Experience 💼

Dr. Hemalatha began her career as a Design Engineer at SBC Naval Dockyard, Visakhapatnam, gaining valuable industrial exposure from 2006 to 2008. Transitioning to academia, she served as an Assistant Professor at various institutions including Sri Gnaneswari Research & Technological Academy and Sri Chaitanya College of Engineering. She later joined Lendi Institute of Engineering & Technology, progressing from Assistant to Associate Professor. Since 2017, she has been associated with the Raghu group of institutions, currently holding the position of Associate Professor at Raghu Engineering College. Her roles have extended beyond teaching to include responsibilities such as R&D coordination, organizing technical seminars, and coordinating accreditation activities.

Research Interests 🔬

Dr. Hemalatha’s research primarily revolves around performance analysis in logistics and manufacturing systems, particularly focusing on container terminal operations, supply chain modeling under fuzzy environments, and multi-criteria decision-making techniques. She also explores material characterization, including hybrid polymer composites, metal matrix composites, and performance enhancement of centrifugal and injection molding systems. Her research reflects a blend of theoretical modeling and practical validation, often incorporating AI-based tools and optimization techniques for manufacturing processes.

Publication Top Note📚

“Supply chain strategy based supplier evaluation – An integrated framework” (IJMVSC, 2015) – cited for its methodological approach to supplier evaluation.

“Supply chain performance evaluation through AHM and membership degree transformation” (Materials Today: Proceedings, 2017) – Scopus Indexed.

“Modeling and analysis of a four stage supply chain under fuzzy environment” (IJENM, 2018) – recognized for its application of fuzzy logic in logistics modeling.

“Service quality evaluation and ranking of container terminal operators” (AJSL, 2018) – featured in the Asian Journal of Shipping and Logistics, widely cited in terminal performance literature.

“Service quality evaluation through AHM and Membership Degree Transformation” (Materials Today: Proceedings, 2019) – frequently referenced in studies on maritime logistics.

“Design, Development and Testing of an Automatic Desktop Injection Molding Machine” (IJARIIT, 2021) – illustrates her interdisciplinary work bridging design and manufacturing.

“Technical Efficiency Evaluation and Ranking of Container Terminal Operators Through DEA” (Materials Today: Proceedings, 2023) – a significant contribution in performance benchmarking.

Conclusion ✅

Dr. Hemalatha Somireddi has carved a niche for herself in mechanical and industrial engineering through her persistent pursuit of academic excellence, impactful research, and active community engagement. Her work addresses contemporary challenges in manufacturing and logistics, integrating tools like DEA, AHP, and fuzzy logic into performance measurement and evaluation systems. With a forward-looking mindset, she continues to explore innovative methodologies in materials and manufacturing technologies. As a mentor, innovator, and academic leader, she exemplifies the spirit of applied engineering education and research, consistently contributing to the advancement of both her students and the scientific community.