Hybrid modeling based on physics-based deep learning (PBDL) represents a transformative approach that unifies mechanistic understanding and data-driven learning, offering a pathway beyond the limitations of traditional chromatographic models.
This review systematically summarizes the evolution of PBDL methods for chromatography across three generations. The first generation, surrogate-model-based solvers, accelerates simulations through mechanistic up-sampling and fast inference but remains constrained by indirect physical coupling, reflecting “data-assisted physics”. The second generation, physics-informed neural networks, embeds governing equations into the loss function, enabling simultaneous learning from physics and data, while facing challenges in loss balancing and numerical integration, representing “physics-constrained data”. The third generation, differentiable numerical simulations of physical systems, integrates neural networks within numerical solvers, achieving high-fidelity modeling and gradient-based optimization, achieving “mutual feedback between physics and data”.
Collectively, these advances empower chromatographic models with the ability to self-learn complex adsorption behaviors under physical constraints, paving the way toward real-time digital twins and intelligent bioprocess modeling for the next generation of chromatographic engineering.
Hybrid model
Physics-based deep learning
Surrogate-model-based solver
Physics-informed neural network
Differentiable physics
@article{11,date={2026/01/04},author={Chen, Yu-Cheng and Chen, Zhiyuan and Dai, Shi-Peng and Xie, Youping and Yao, Shan-Jing and Lin, Dong-Qiang},title={Evolution of chromatographic modeling: from mechanistic models to hybrid models with physics-based deep learning},journal={Journal of Chromatography A},volume={1765},pages={466565},keywords={Hybrid model<br>
Physics-based deep learning<br>
Surrogate-model-based solver<br>
Physics-informed neural network<br>
Differentiable physics},doi={10.1016/j.chroma.2025.466565},year={2026},}