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A generalized study of the distribution of buffer over calcium on a fractional dimension

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2023

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Abstract

Calcium is an essential element in our body and plays a vital role in moderating calcium signalling. Calcium is also called the second messenger. Calcium signalling depends on cytosolic calcium concentration. In this study, we focus on cellular calcium fluctuations with different buffers, including calcium-binding buffers, using the Hilfer fractional advection-diffusion equation for cellular calcium. Limits and start conditions are also set. By combining with intracellular free calcium ions, buffers reduce the cytosolic calcium concentration. The buffer depletes cellular calcium and protects against toxicity. Association, dissociation, diffusion, and buffer concentration are modelled. The solution of the Hilfer fractional calcium model is achieved through utilizing the integral transform technique. To investigate the influence of the buffer on the calcium concentration distribution, simulations are done in MATLAB 21. The results show that the modified calcium model is a function of time, position, and the Hilfer fractional derivative. Thus the modified Hilfer calcium model provides a richer physical explanation than the classical calcium model.

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Buffer, Calciumconcentration, Hilferfractional Derivative, Laplacetransform, Fourier Transform

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Bhatter, Sanjay...et al. (2023). "A generalized study of the distribution of buffer over calcium on a fractional dimension", Applied Mathematics In Science And Engineering, Vol. 31, No. 1

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Applied Mathematics In Science And Engineering

Volume

31

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1

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