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公开(公告)号：US10434542B2
公开(公告)日：2019-10-08
申请号：US15568639
申请日：2016-04-22
发明人： Xianming Dai , Birgitt M. Boschitsch , Jing Wang , Tak-Sing Wong , Nan Sun
摘要： Substrates having a textured surface that can maintain or improve droplet mobility in both the Cassie and Wenzel states include a textured surface and a conformal lubricant layer thereover. The textured surface can include a plurality of raised first elements and a plurality of second elements thereon and the conformal lubricant layer over the plurality of raised first elements and covering the plurality of second elements. The plurality of raised first elements can have an average height of between 0.5 μm and 500 μm, and the plurality of second elements can have an average height of between 0.01 μm and 10 μm. Such substrates can be prepared by texturing a surface of a substrate with a plurality of raised first elements and a plurality of second elements thereon; optionally silanizing the textured surface and applying a lubricant layer over the plurality of raised first elements and between the plurality of second elements.
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公开(公告)号：US11938476B2
公开(公告)日：2024-03-26
申请号：US17749720
申请日：2022-05-20
发明人： Pak Kin Wong , Tak-Sing Wong , Jing Wang , Hui Li , Yi Lu , Ying Wan
IPC分类号： B01L3/00
CPC分类号： B01L3/5025 , B01L3/50273 , B01L2200/00 , B01L2300/0816 , B01L2300/161 , B01L2300/165 , B01L2400/0406 , B01L2400/0481
摘要： A biochemical analysis system capable of sample preparation and processing can include at least one inlet channel having a non-fouling, slippery surface to autonomously transport a fluid sample to a chamber by a geometry of the at least one inlet channel. The at least one inlet channel can include a first end, which is open and exposed, and a second end connected to the chamber for mixing and reaction of the fluid sample, and the at least one inlet channel can include a converging or diverging angle.
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公开(公告)号：US11351536B2
公开(公告)日：2022-06-07
申请号：US16174008
申请日：2018-10-29
发明人： Pak Kin Wong , Tak-Sing Wong , Jing Wang , Hui Li , Yi Lu , Ying Wan
IPC分类号： B01L3/00
摘要： A biochemical analysis system capable of sample preparation and processing can include at least one inlet channel having a non-fouling, slippery surface to autonomously transport a fluid sample to a chamber by a geometry of the at least one inlet channel. The at least one inlet channel can include a first end, which is open and exposed, and a second end connected to the chamber for mixing and reaction of the fluid sample, and the at least one inlet channel can include a converging or diverging angle.
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公开(公告)号：US12076748B2
公开(公告)日：2024-09-03
申请号：US16551895
申请日：2019-08-27
发明人： Xianming Dai , Birgitt M. Boschitsch , Jing Wang , Tak-Sing Wong , Nan Sun
CPC分类号： B05D5/08 , B05D3/00 , B05D5/02 , B08B17/065 , B29C59/022 , B32B3/30 , B05D3/101 , B29C2059/023 , B29K2995/0092 , B29K2995/0093
摘要： Substrates having a textured surface that can maintain or improve droplet mobility in both the Cassie and Wenzel states include a textured surface and a conformal lubricant layer thereover. The textured surface can include a plurality of raised first elements and a plurality of second elements thereon and the conformal lubricant layer over the plurality of raised first elements and covering the plurality of second elements. The plurality of raised first elements can have an average height of between 0.5 μm and 500 μm, and the plurality of second elements can have an average height of between 0.01 μm and 10 μm. Such substrates can be prepared by texturing a surface of a substrate with a plurality of raised first elements and a plurality of second elements thereon; optionally silanizing the textured surface and applying a lubricant layer over the plurality of raised first elements and between the plurality of second elements.
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公开(公告)号：US20210052784A1
公开(公告)日：2021-02-25
申请号：US17083863
申请日：2020-10-29
发明人： Tak-Sing Wong , Jing Wang , Birgitt Boschitsch
摘要： An ostomy bag having a polymeric surface is prepared by forming a polyphenol layer on the surface, forming a silanization layer on the polyphenol layer and forming a lubricant layer entrenched over the silanization layer. The silanization layer is polymerized from a solution including: (i) a polymerizable silane or siloxane or combination thereof; (ii) a solvent; and (iii) an acid catalyst. The silanization layer comprises an array of silanes or siloxanes or a combination thereof each having ends anchored to the polyphenol layer and opposite ends extending away from the polyphenol layer.
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公开(公告)号：US10968353B2
公开(公告)日：2021-04-06
申请号：US16113342
申请日：2018-08-27
发明人： Tak-Sing Wong , Jing Wang
摘要： A coated smooth surface of a substrate repels liquids and viscoelastic materials and can have anti-staining and anti-biofouling properties. The smooth surface can be coated by applying a chemical layer on the surface and a lubricant. Such coated surfaces are useful for use in toilets, urinals, or other devices for the processing of liquids and viscoelastic materials such as solid or semi-solid metabolic waste of human digestive system. Such coated surfaces can also be applied to windows for buildings or vehicles such as automobiles or camera lenses to repel liquids (e.g., rain), ice, frost, insect residues, and birds' feces.
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公开(公告)号：US10329510B2
公开(公告)日：2019-06-25
申请号：US15302315
申请日：2015-04-10
发明人： Jing Wang , Tak-Sing Wong
IPC分类号： C09D5/00 , C09D7/63 , B05D3/04 , C10M107/50 , A01N25/08 , C10M105/76 , B05D3/00
摘要： A robust and self-healing coating has been developed by incorporating a thermally self-healing chemical coating on smooth and/or roughened solid. When the chemically coated solid is combined with a lubricating fluid, the material system is capable to repel a broad range of liquids and solids. The thermally self-healing chemical coating may be applied on various industrial metals, glass and plastics, and has shown exceptionally physical and chemical robustness as compared to state-of-the-art liquid-repellent coatings.
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公开(公告)号：US20230084928A1
公开(公告)日：2023-03-16
申请号：US18050106
申请日：2022-10-27
发明人： Tak-Sing Wong , Jing Wang
摘要： A coated smooth surface of a substrate repels liquids and viscoelastic materials and can have anti-staining and anti-biofouling properties. The smooth surface can be coated by applying a chemical layer on the surface and a lubricant. Such coated surfaces are useful for use in toilets, urinals, or other devices for the processing of liquids and viscoelastic materials such as solid or semi-solid metabolic waste of human digestive system. Such coated surfaces can also be applied to windows for buildings or vehicles such as automobiles or camera lenses to repel liquids (e.g. rain), ice, frost, insect residues, and birds' feces.
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公开(公告)号：US11485863B2
公开(公告)日：2022-11-01
申请号：US17202512
申请日：2021-03-16
发明人： Tak-Sing Wong , Jing Wang
摘要： A process for preparing a repellant smooth surface includes applying a coating composition onto a smooth surface of a substrate having hydroxyl functional groups thereon and an average roughness Ra of less than 4 μm. The coating composition includes: (i) a polymerizable silane or siloxane or both selected from the group consisting of dimethyldimethoxysilane, dimethoxy-methyl(3,3,3-trifluoropropyl)silane, dimethoxy(methyl)octylsilane, diethoxydimethylsilane, (ii) a solvent and (iii) an acid catalyst. The process further includes polymerizing the silane or siloxane or both from the hydroxyl functional groups on the smooth surface of the substrate to form a chemical layer of graft polymers having ends anchored to the smooth surface and applying a lubricant coating over the formed chemical layer to adhere and maintain the lubricant on the smooth surface and form a lubricant-entrenched smooth surface as the repellant smooth surface.
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