Langmuir-Blodgett transfer from the oil-water interface
Langmuir-Blodgett transfer from the oil-water interface
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DOI：
10.1016/j.jcis.2022.10.063
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发表时间：
2022-10-26
影响因子：
9.9
通讯作者：
Zuo, Yi Y.
中科院分区：
文献类型：
--
作者：
Li, Guangle;Xu, Xiaojie;Zuo, Yi Y.
假设：几乎所有的朗缪尔-布洛杰特（LB）薄膜都是用一个多世纪前开发的经典朗缪尔薄膜平衡法制备的。到目前为止，经典的朗缪尔膜平衡和LB转移技术的成功主要限于在空气-水表面的自组装单分子膜的研究。研究油水界面的自组装单分子膜具有挑战性，因为朗缪尔膜平衡需要堆叠的油层和水层。我们假设，一个新开发的实验方法，称为约束滴表面测量法（CDS），是能够制备和表征LB膜从油-水界面。实验：我们开发了一种新的液滴为基础的LB膜转移技术，能够从油-水界面制备LB膜。结合原子力显微镜，我们已经证明了CDS的能力，在研究天然肺表面活性剂膜自组装在全氟化碳-水界面，并已比较LB膜制备的空气-水表面使用经典的朗缪尔膜balance.Findings：我们的研究结果表明了一种新的范式，用于研究自组装单分子膜和制备LB膜从油-水界面。CDS有望将传统LB膜技术的应用范围从气-水界面扩展到油-水界面。(c)2022爱思唯尔公司All rights reserved.
Hypothesis: Almost all Langmuir-Blodgett (LB) films were prepared with the classical Langmuir film bal-ance, developed more than a century ago. To date, the success of the classical Langmuir film balance and the LB transfer technique is primarily restricted to the study of self-assembled monolayers at the air -water surface. It is challenging to study self-assembled monolayers at the oil-water interface, since the Langmuir film balance requires stacked oil and water layers. We hypothesize that a newly developed experimental method, called constrained drop surfactometry (CDS), is capable of preparing and charac-terizing LB films from the oil-water interface. Experiments: We have developed a novel droplet-based LB transfer technique capable of preparing LB films from the oil-water interface. In conjunction with atomic force microscopy, we have demonstrated the capacity of the CDS in studying a natural pulmonary surfactant film self-assembled at the perfluorocarbon-water interface, and have compared to the LB films prepared from the air-water surface using the classical Langmuir film balance.Findings: Our findings have demonstrated a novel paradigm for studying self-assembled monolayers and for preparing LB films from the oil-water interface. The CDS holds great promise for expanding the appli-cability of the traditional LB transfer technique from the air-water surface to the oil-water interface.(c) 2022 Elsevier Inc. All rights reserved.