The myelin figure (MF) is one of the basic structures of lipids, and the study of their formation and the effect of various parameters on their growth is useful in understanding several biological processes. In this paper, we address the influence of the pH degree of the surrounding medium on MF dynamics. We introduce a tunable shearing digital holographic microscopy arrangement to obtain quantitative and volumetric information about the complex growth of MFs. Our results show that (1) the time evolution of relative length and volume changes of MFs follows a power-law, (2) the acidity facilitates the growth rate, and (3) the acidic environment causes the formation of thicker MFs.

中文翻译：

---

pH值对髓鞘形态和生长速率的影响

髓磷脂图（MF）是脂质的基本结构之一，研究其形成以及各种参数对其生长的影响对于理解几种生物学过程很有用。在本文中，我们解决了周围介质的pH值对MF动力学的影响。我们介绍了可调剪切数字全息显微术安排，以获取有关MF复杂增长的定量和体积信息。我们的结果表明：（1）MF的相对长度和体积变化的时间演化遵循幂律，（2）酸度促进生长速率，（3）酸性环境导致形成较厚的MF。