20–21 Feb 2026
Ewing Christian College
Asia/Kolkata timezone
The Conference is funded by the Anusandhan National Research Foundation (ANRF), Govt. of India and is collaborated by the National Academy of Sciences India (NASI).

Thermal characterization of stones formed in human body

Not scheduled
20m
Department of Physics (Ewing Christian College)

Department of Physics

Ewing Christian College

Muthiganj, Prayagraj, 211003
Oral Condensed Matter Physics

Speaker

Sai Kumar Chirra (Department of Physics, Ewing Christian College, Prayagraj, Uttar Pradesh, India)

Description

The formation of stones in the human body, such as gallbladder and kidney, is a painful medical condition; however, their thermal stability and phase behavior remain insufficiently explored. Understanding the thermodynamic properties of such bio- materials can provide valuable insights about formation mechanisms. In the present study, a comparative thermal characterization of gallbladder and renal stones was carried out using Differential Scanning Calorimetry (DSC) over the temperature range of 20 ℃ to 200 ℃ at a heating rate of 10 ℃/min. The heating thermograms revealed distinct endothermic peaks corresponding to crystal–isotropic phase transitions in both samples. Thermodynamic properties like enthalpy and entropy changes were studied for these stone samples. The results demonstrate that DSC is an effective technique for distinguishing the thermal characteristics of biological stones and may contribute to a better understanding of their composition, stability, and formation processes.

Authors

Prof. Ashok Kumar Pathak (Department of Physics, Ewing Christian College, Prayagraj, Uttar Pradesh, India) Sai Kumar Chirra (Department of Physics, Ewing Christian College, Prayagraj, Uttar Pradesh, India)

Co-authors

Dr Pradeep Kumar Rai (Department of Nephrology, Opal Hospital, Varanasi, Uttar Pradesh, India) Dr Rohit Verma (Department of Physics, Amity Institute of Applied Sciences, Amity University, Noida, India) Dr Upendra Singh (School of Sciences, Azim Premji University, Bhopal, India)

Presentation materials

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