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- Somchai Sriyab, Jiraporn Yojina, +6 authors Wannapong Triampo
- Comp. in Bio. and Med.
- 2009

We presented an application of the Lattice Boltzmann method (LBM) to study the dynamics of Min proteins oscillations in Escherichia coli. The oscillations involve MinC, MinD and MinE proteins, which are required for proper placement of the division septum in the middle of a bacterial cell. Here, the LBM is applied to a set of the deterministic reaction… (More)

- Waipot Ngamsaad, Kannika Khompurngson
- Physical review. E, Statistical, nonlinear, and…
- 2012

In this paper, we investigated a density-dependent reaction-diffusion equation, u(t)=(u(m))(xx)+u-u(m). This equation is known as the extension of the Fisher or Kolmogoroff-Petrovsky-Piscounoff equation, which is widely used in population dynamics, combustion theory, and plasma physics. By employing a suitable transformation, this equation was mapped to the… (More)

- Waipot Ngamsaad, Kannika Khompurngson
- Physical review. E, Statistical, nonlinear, and…
- 2012

Colonies of bacteria grown on thin agar plate exhibit fractal patterns as a result of adaptation to their environments. The bacterial colony pattern formation is regulated crucially by chemotaxis, the movement of cells along a chemical concentration gradient. Here, the dynamics of pattern formation in a bacterial colony is investigated theoretically through… (More)

The effect of mechanical interaction between cells on the spreading of bacterial population was investigated in one-dimensional space. A nonlinear reaction-diffusion equation has been formulated as a model for this dynamics. In this model, the bacterial cells are treated as the rod-like particles that interact, when contacting each other, through the… (More)

- Waipot Ngamsaad
- Physical review. E, Statistical, nonlinear, and…
- 2014

Population dynamics that evolve in a radial symmetric geometry are investigated. The nonlinear reaction-diffusion model, which depends on population density, is employed as the governing equation for this system. The approximate analytical solution to this equation is found. It shows that the population density evolves from the initial state and propagates… (More)

- Kan Sornbundit, Waipot Ngamsaad, Charin Modchang, Narin Nuttavut, Darapond Triampo, Wannapong Triampo
- 2012

A continuum model for artificial membrane was developed by treating the upper and lower layers of the membrane as a pair of coupled Ising monolayers. Linear coupling between the layers was included. Linear stability analysis was used to predict the phase diagram. The dependence of the phase-separated regions on inter-layer coupling is determined. We… (More)

- Waipot Ngamsaad, Paisan Kanthang, Charin Modchang, Somchai Sriyab, Wannapong Triampo
- Applied Mathematics and Computation
- 2010

Min-protein oscillation in Escherichia coli has an essential role in controlling the accurate placement of the cell division septum at the middle-cell zone of the bacteria. This biochemical process has been successfully described by a set of reaction–diffusion equations at the macroscopic level. The lattice Boltzmann method (LBM) has been used to simulate… (More)

- Charin Modchang, Paisan Kanthang, +4 authors Yongwimol Lenbury
- 2004

One of the most important steps in the developmental process of the bacteria cell at the cellular level is the determination of the middle of the cell and the proper placement of the septum, these being essential to the division of the cell. In E. coli, this step depends on the proteins MinC, MinD, and MinE. Exposure to a constant electric field may cause… (More)

- Paisan Kanthang, Waipot Ngamsaad, +4 authors Yongwimol Lenbury
- 2004

In E. coli the determination of the middle of the cell and the proper placement of the septum is essential to the division of the cell. This step depends on the proteins MinC, MinD, and MinE. Exposure to a constant external field e.g., an electric field or magnetic field may cause the bacteria cell division mechanism to change resulting in an abnormal… (More)

Determining the middle of the bacteria cell and the proper placement of the septum is essential to the division of the bacterial cell. In E. coli, this process depends on the proteins MinC, MinD, and MinE. Here, the Lattice Boltzmann method (LBM) is used to study the dynamics of the oscillations of the min proteins from pole to pole. This determines the… (More)

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