Experiments on the motion of drops on a horizontal solid surface due to a wettability gradient

Langmuir : the ACS Journal of Surfaces and Colloids
Nadjoua MoumenJohn B McLaughlin

Abstract

Results from experiments performed on the motion of drops of tetraethylene glycol in a wettability gradient present on a silicon surface are reported and compared with predictions from a recently developed theoretical model. The gradient in wettability was formed by exposing strips cut from a silicon wafer to dodecyltrichlorosilane vapors. Video images of the drops captured during the experiments were subsequently analyzed for drop size and velocity as functions of position along the gradient. In separate experiments on the same strips, the static contact angle formed by small drops was measured and used to obtain the local wettability gradient to which a drop is subjected. The velocity of the drops was found to be a strong function of position along the gradient. A quasi-steady theoretical model that balances the local hydrodynamic resistance with the local driving force generally describes the observations; possible reasons for the remaining discrepancies are discussed. It is shown that a model in which the driving force is reduced to accommodate the hysteresis effect inferred from the data is able to remove most of the discrepancy between the observed and predicted velocities.

References

May 3, 1993·Physical Review Letters·J A Marsh Dussan V
Jun 2, 2000·Science·K IchimuraM Nakagawa
Jun 15, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Gary C H MoDaniel Y Kwok
Jun 23, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Susan DanielManoj K Chaudhury
Nov 18, 2005·Journal of Colloid and Interface Science·Ho-Young KimByung Ha Kang
Dec 1, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·R Shankar SubramanianJohn B McLaughlin
Mar 8, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Nadjoua MoumenJohn B McLaughlin
Jun 12, 1992·Science·M K Chaudhury, G M Whitesides

❮ Previous
Next ❯

Citations

Sep 30, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·A K Das, P K Das
Jul 26, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·O BliznyukBene Poelsema
Jun 4, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Francesca Villafiorita-MonteleoneAthanassia Athanassiou
Dec 3, 2008·The Journal of Chemical Physics·Jonathan D HalversonJoel Koplik
Feb 5, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Ashley M MacnerPaul H Steen
Sep 16, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Giulia FioravantiMassimiliano Cavallini
Aug 27, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·A D SommersK F Eid
Oct 16, 2015·Advanced Materials·Philipp T KühnPatrick van Rijn
Sep 30, 2008·Journal of Colloid and Interface Science·J J HuangY T Chew
May 16, 2015·Scientific Reports·Shile FengYongping Hou
Oct 2, 2014·Advanced Materials·Peng TaoTao Deng
Sep 19, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Monojit ChakrabortySunando DasGupta
Aug 5, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Chuanjin LanYanbao Ma
Jan 17, 2015·Journal of Colloid and Interface Science·Imtiaz AhmadE Stefan Kooij
Jul 12, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Qingwen DaiXiaolei Wang
Nov 26, 2016·Scientific Reports·Shanpeng LiJian Hou
May 30, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Vickramjeet SinghHeng-Kwong Tsao
Feb 14, 2019·Soft Matter·Jiaqian LiZuankai Wang
Sep 26, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Xinpeng Xu, Tiezheng Qian
Mar 18, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·A Moosavi, A Mohammadi
Oct 16, 2016·Physical Review. E·Majid AhmadlouydarabYanbao Ma
Jan 7, 2019·The European Physical Journal. E, Soft Matter·Jianlin Liu, Shanpeng Li
Jan 20, 2018·Physical Review. E·Joël De ConinckThierry Huillet
Feb 21, 2008·Soft Matter·Sara MorgenthalerNicholas D Spencer
Jan 28, 2021·Materials·Nima AbbaspourVolker P Schulz
Jan 29, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Jan Genzer, Rajendra R Bhat
May 21, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·A K Das, P K Das
Apr 11, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Vikram PratapR Shankar Subramanian
May 27, 2021·Nature Communications·Ali J MazaltarimStephen A Morin
Oct 30, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Francesca Villafiorita MonteleoneAthanassia Athanassiou
Mar 13, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Qingwen DaiM M Khonsari
Aug 6, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Ashley M MacnerPaul H Steen
Feb 19, 2020·ACS Applied Materials & Interfaces·Ming LiuShaohua Chen
Sep 10, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Sam LowreyAndrew Sommers
Feb 7, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Yoshihiro ItoAkira Nakajima
Mar 8, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Nadjoua MoumenJohn B McLaughlin

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Langmuir : the ACS Journal of Surfaces and Colloids
R Shankar SubramanianJohn B McLaughlin
Science
Manoj K Chaudhury, G M Whitesides
Langmuir : the ACS Journal of Surfaces and Colloids
Jilin Zhang, Yanchun Han
Lab on a Chip
Mohamed AbdelgawadAaron R Wheeler
© 2021 Meta ULC. All rights reserved