2019
DOI: 10.1002/admi.201801629
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Fabrication of Biomimetic Micropatterned Surfaces by Sol–Gel Dewetting

Abstract: Dewetting is a spontaneous phenomenon that occurs when unstable thin liquid films break apart on a non-wettable substrate, driven by unfavorable intermolecular forces at the interface. The Neto group has used dewetting of polymer films extensively in the last decade to generate patterned surfaces for a range of applications, including atmospheric water capture and cell patterning. [16][17][18][19][20][21] Dewetting of metastable thin polymer films (≈100 nm) occurs when the polymer is brought above its glass tr… Show more

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Cited by 13 publications
(11 citation statements)
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References 72 publications
(87 reference statements)
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“…When methyl group is introduced in the silica film, IR spectra exhibit some typical vibrations coming from the organic groups, especially in the range 3000-2800 cm −1 and 1300-1200 cm −1 . In particular, the clearest peak is the one centered at 1270 cm −1 , not present in the pure silica film spectra, and coming from the vibration of the methyl attached to Si [20,25,[27][28][29]. Other bands related to Si-CH 3 vibrations are less visible because they are partially overlapped and characterized by lower intensity, e.g., around 2950 cm −1 , the -CH 3 vibrations are overlapped by the board peak in the 3500-3000 cm −1 range, related to the O-H stretching of the physisorbed water and to the unreacted Si-OH stretching; around 780 cm −1 the C-H vibration is overlapped by the broadband of the Si-O-Si bond vibration [20,30].…”
Section: Surface Chemistry Investigationmentioning
confidence: 99%
“…When methyl group is introduced in the silica film, IR spectra exhibit some typical vibrations coming from the organic groups, especially in the range 3000-2800 cm −1 and 1300-1200 cm −1 . In particular, the clearest peak is the one centered at 1270 cm −1 , not present in the pure silica film spectra, and coming from the vibration of the methyl attached to Si [20,25,[27][28][29]. Other bands related to Si-CH 3 vibrations are less visible because they are partially overlapped and characterized by lower intensity, e.g., around 2950 cm −1 , the -CH 3 vibrations are overlapped by the board peak in the 3500-3000 cm −1 range, related to the O-H stretching of the physisorbed water and to the unreacted Si-OH stretching; around 780 cm −1 the C-H vibration is overlapped by the broadband of the Si-O-Si bond vibration [20,30].…”
Section: Surface Chemistry Investigationmentioning
confidence: 99%
“…[ 59 , 60 ] With the development of science and technology, many advanced methods have been put forward to prepare materials especially biomaterials with specific wettability such as superwetting materials and SLIPS. [ 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 ,…”
Section: Fabrication Of Biomaterials With Specific Wettabilitymentioning
confidence: 99%
“…So far, the popular chemical methods for surface modification include sol–gel method, layer‐by‐layer technique, self‐assembly, and chemical vapor deposition (CVD). [ 2 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 ] With decades of development, these methods have achieved great progress in fabricating various wettability materials in precise and controllable manner, paving the way for further application of these materials.…”
Section: Fabrication Of Biomaterials With Specific Wettabilitymentioning
confidence: 99%
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“…Thin polymer film used as the lubricating fluid in slippery surfaces often becomes unstable (dewetting) on solid surfaces due to its interaction with the substrate and test liquid by long-range interaction, short-range polar interaction, and other molecular forces [14,15]. Despite the * kcharya@iitk.ac.in large applications of the system when drop floats, instability pattern arises by rupturing of the film when the drop sinks, used in many applications like protein patterning, cell culture, contact lens production, and water harvesting [16][17][18][19][20][21][22][23][24].…”
mentioning
confidence: 99%