Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do
Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do
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DOI：
10.1007/s11671-007-9065-5
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发表时间：
2007-06-15
影响因子：
--
通讯作者：
Chabli A
中科院分区：
文献类型：
--
作者：
Bernard C;Aimé JP;Marsaudon S;Levy R;Bonnot AM;Nguyen C;Mariolle D;Bertin F;Chabli A
微米和纳米级流体的蒸发可用于自组装悬浮液中的纳米级颗粒。蒸发过程可用于温和地控制微流体和纳米流体中的流动，从而为在表面上设计精细图案或使纳米探针尖端功能化提供了潜在的手段。在本文中，我们提出了一种原始的实验方法来探索这个开放且相当原始的领域。我们在气液界面使用振荡尖端，尖端的浸入深度控制在微米范围内。此外，通过粘合在尖端顶点的多壁碳纳米管实现了几十纳米的非常小的浸渍深度。该液体是功能化纳米粒子在水中稀释的水溶液。水的蒸发是决定纳米颗粒在尖端上排列的驱动力。结果显示了各种纳米颗粒沉积模式，沉积物可以分为两类。显示沉积物的类型强烈依赖于三重线是否被钉扎以及金纳米粒子的肽涂层。为了评估分类，提出了纳米弯月面和涉及减薄效应的相关耗散过程的伴随动力学研究。
Evaporation of fluid at micro and nanometer scale may be used to self-assemble nanometre-sized particles in suspension. Evaporating process can be used to gently control flow in micro and nanofluidics, thus providing a potential mean to design a fine pattern onto a surface or to functionalize a nanoprobe tip. In this paper, we present an original experimental approach to explore this open and rather virgin domain. We use an oscillating tip at an air liquid interface with a controlled dipping depth of the tip within the range of the micrometer. Also, very small dipping depths of a few ten nanometers were achieved with multi walls carbon nanotubes glued at the tip apex. The liquid is an aqueous solution of functionalized nanoparticles diluted in water. Evaporation of water is the driving force determining the arrangement of nanoparticles on the tip. The results show various nanoparticles deposition patterns, from which the deposits can be classified in two categories. The type of deposit is shown to be strongly dependent on whether or not the triple line is pinned and of the peptide coating of the gold nanoparticle. In order to assess the classification, companion dynamical studies of nanomeniscus and related dissipation processes involved with thinning effects are presented.
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影响因子：
10.8
作者：
Marty, L;Bouchiat, V;Bonnot, AM
通讯作者：
Bonnot, AM
影响因子：
15
作者：
Zhang, QL;Gupta, S;Russell, TP
通讯作者：
Russell, TP
影响因子：
15
作者：
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通讯作者：
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影响因子：
2.4
作者：
Deegan, RD;Bakajin, O;Witten, TA
通讯作者：
Witten, TA
影响因子：
64.8
作者：
Deegan, RD;Bakajin, O;Witten, TA
通讯作者：
Witten, TA