Pseudopotential Lattice Boltzmann methods (LBM) can simulate phase transition in high-density ratio multiphase flow systems. If coupled with thermal LBM through equation of state, it can be used to study instantaneous phase transition phenomena with high temperature gradient where only one set of formulations in LBM system can handle liquid, vapor, phase transition, and heat transport. However, at lower temperatures unrealistic spurious current at interface introduce instability and limit its application in real flow system. In this study, we proposed new modifications to LBM system to minimize spurious current which enables us to study nucleation dynamic at room temperature. To demonstrate the capabilities of this approach, thermal ejection process is modeled as one example of a complex flow system. In inkjet printer, a thermal pulse instantly heats up the liquid in microfluidic chamber and nucleate bubble vapor providing pressure pulse necessary to eject droplets at high speed. Our modified method can present a more realistic model of explosive vaporization process since it can also capture high temperature/density gradient at nucleation region. Thermal inkjet technology has been successfully applied for printing cells, but cells are susceptible to mechanical damage or death as they squeeze out of nozzle head. To study cell deformation, spring network model, representing cells, is connected to LBM through immersed boundary method. Looking into strain/stress distribution of cell membrane at its most deformed state, it is found that high stretching rate effectively increase rupture tension. In other word, membrane deformation energy is released thorough creation of multiple smaller nanopores rather than big pores. Overall, concurrently simulating multiphase flow, phase transition, heat transfer, and cell deformation in one unified LB platform, we were able to provide a better insight into bubble dynamic and cell mechanical damage during printing process.