View allAll Photos Tagged superhydrophobic
…what? Another wacko term in Bill’s photo caption! Have you ever noticed how water beads up on some leaves but not on others? Good examples of the former include lupines, cottonwood, and aspen leaves. The scientific term for this, hydrophobicity, literally means fear of water.
Hydrophobicity on the surface of the leaf shows off beautifully when the aspen are in full color and have dropped off their parent plant, such as in this photo. The water beads on aspen are particularly robust, earning the “super” in the title. The water repellency is associated with tiny hairs and wax plates on the surface of the leaf, which help to repel water, resulting in the formation of multiple little spheres rather than spreading across the leaf surface.
Why would a plant want to repel a key resource like water? The current hypothesis is that superhydrophobicity keeps the surface of the leaf dry and clean, helping to promote photosynthesis through greater light absorption.
These leaves were on the Beckwith Pass trail in the West Elk Mountains, Colorado.
The leaves of the Lady's Mantle plant are "fan-shaped with small teeth at the tips. The long-stalked, gray-green to green leaves are often covered with soft hairs, and show a high degree of water-resistance (see Lotus effect)."
The Lotus effect means that water spilled on a superhydrophobic surface does not wet the surface, but simply rolls off. Additionally, as water moves across the superhydrophobic surface, it picks up and carries away any foreign material, such as dust or dirt.
We had a gentle rain today. I knew right away there would be photographic drop opportunities with wild Lupine.
Lupine leaves and flower parts aren’t superhydrophobic, rather, they exhibit high contact-angle hysteresis. That means water drops can form moderate contact angles (30°–70°), yet the advancing and receding angles differ greatly, pinning droplets in place and preventing them from rolling off easily
Water droplets on a pink peony exhibiting the Lotus Effect. This effect is also called superhydrophobicity and can be identified by a droplet of water with a contact angle relative to a surface of greater than 150°. It causes water droplets to roll off a surface when tilted instead of flattening out, leading to a "self-cleaning" effect and a ton of fascinating applications in research. A hierarchical structure (e.g., hills and valleys which are in turn covered with their own hills and valleys) at the microscopic level is part of why these droplets remain stable.
The Floriography of Water Lilies, as with other flowers, varies between religions, regions, and colors.
A common thread are the symbols of rebirth and hope, as with Lotus Flowers, the Water Lilies submerge in the evening and re-emerge in the morning.
Religious Symbolism of the Purple Water Lily:
Buddhism: Enlightenment and Power
Hinduism: Wisdom, Resurrection, Fruit, Truth
Egyptian: Sun, Rebirth
Asian: Universality
Christianity: Charity, Purity
An interesting characteristic of both Water Lilies and Lotus Flowers is their superhydrophobic property of rolling water into balls (like liquid mercury) instead of flattening. This property enables the water balls to catch dirt and impurities and roll off the leaves, keeping them clean as opposed to their roots which are borne in mud.
I chose this flower out of the many flower pics I have because Purple is my wife's favorite color.... and she always wins!
Our symbolism of the Purple Water Lily: Love, Fidelity, Trust, and Respect.
For Smile on Saturday
Theme: Floriography
"I see the crystal raindrops fall
And the beauty of it all
Is when the sun comes shining through
To make those rainbows in my mind
When I think of you sometime
And I wanna spend some time with you
Just the two of us
We can make it if we try
Just the two of us
(Just the two of us)
Just the two of us
Building castles in the sky
Just the two of us
You and I"
(Bill Withers; Grover Washington Jr.)
www.youtube.com/watch?v=Uw5OLnN7UvM
These are Lotus Leaves emerging from the pond. The slit-leaves floating on the pond are Water Lily plants. They each
produce beautiful flowers and are often mistaken for each other.
The Lotus flower (Nelumbo family) has many symbolic meanings, some depending on the color of the flower they produce. They are especially meaningful in Eastern religions, Hinduism (Peace, Eternity), Buddhism (Purity, Beauty, Divinity, Re-birth), Egyptian (associated with the Sun, re-birth).
The symbols of re-birth and re-incarnation can be traced to the fact that the Lotus flowers submerge in the evening and rise again in the morning.
An interesting quality of the Lotus Leave is that it is superhydrophobic...water 'balls' up like mercury and helps to cleanse the leave in contrast to it's dirty, muddy roots.
This is often called, "The Lotus Effect."
The American Lotus flower is in the Nelumbo Lutea family.
For FlickrFriday
Theme: Leaves
Been trying to capture raindrops or dew drops on nasturtium leaves for years with mixed success. This is one of the more interesting ones, but think I'll keep trying.
Shot with an ancient Olympus 50mm f/3.5 macro lens.
Lotus leaf dancing with reflections and superhydrophobicity in perfection..
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Brazos Bend State Park, TX
My company is working to develop a superhydrophobic coating based off of nanotechnology research at the University of Pennsylvania. The coating is superhydrophobic and transparent, resulting in water beading right off. Absolutely incredible. Can't wait to put some on my sunglasses.
Well I got my Edgertronic high speed camera Friday. the team that put it together was amazing, they did the whole build and delivered right on schedule. I got the camera up and running Friday night and was ready to try some experiments today.
So here is a water balloon falling onto a needle and hitting an antenna dish sprayed with NeverWet, the superhydrophobic coating. It's fun to play with this material, but I can think of no real world applications. It's just too sensitive to damage.
The frame rate was 1000/sec and the shutter speed was 1 milisecond. ASA 200 F/4 864X704.
I may try a few other things today, but the Santa Anna winds are blowing and it's just not very nice to be outside today.
Cheers.
The Clean & Dry™ plunger helps keep your bathroom cleaner and more sanitary. Traditional plungers pick up germs and bacteria that can spread when dripped on floors or in cabinets. The Clean & Dry plunger head and pole is protected with NeverWet™ coating, which forms a protective shield around them that water cannot penetrate. It works like car wax, the water beads up and rolls off instantly.
For additional information please visit our website at: www.rubbermaid.com/Category/Pages/ProductDetail.aspx?Prod...
The Clean & Dry™ plunger helps keep your bathroom cleaner and more sanitary. Traditional plungers pick up germs and bacteria that can spread when dripped on floors or in cabinets. The Clean & Dry plunger head and pole is protected with NeverWet™ coating, which forms a protective shield around them that water cannot penetrate. It works like car wax, the water beads up and rolls off instantly.
For additional information please visit our website at: www.rubbermaid.com/Category/Pages/ProductDetail.aspx?Prod...
The lotus effect refers to the very high water repellency (superhydrophobicity) exhibited by the leaves of the lotus flower (Nelumbo). Dirt particles are picked up by water droplets due to a complex micro- and nanoscopic architecture of the surface, which minimizes adhesion.
Here you can see the effect on an Alchemilla which is a genus of herbaceous perennial plants in the Rosaceae, and a popular garden herb with the common name Lady's mantle.
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Hier ein schönes Beispiel für den Lotuseffekt (damit ist die geringe Benetzbarkeit einer Oberfläche bezeichnet, wie sie bei der Lotospflanze beobachtet werden kann). Wasser perlt in Tropfen ab und nimmt dabei auch alle Schmutzpartikel auf der Oberfläche mit. Verantwortlich dafür ist eine komplexe mikro- und nanoskopische Architektur der Oberfläche, die die Haftung von Schmutzpartikeln minimiert.
Neben der Lotusblume weisen auch andere Pflanzen, wie beispielsweise die Kapuzinerkresse (Tropaeolum), Schilfrohr (Phragmites), Weißkohl (Brassica oleracea convar. capitata var. alba), Wassersalat (Pistia stratiotes), Frauenmantel (Alchemilla) oder die Akelei (Aquilegia) diese Eigenart auf.
Die Selbstreinigungsfähigkeit wasserabweisender mikro-nanostrukturierter Oberflächen wurde in den 1970er Jahren entdeckt und seit Mitte der 1990er Jahre in biomimetisch-technische Produkte übertragen.
Hier handelt es sich um einen Frauenmantel (Alchemilla), eine Pflanzengattung der Familie der Rosengewächse (Rosaceae), die in Europa, Asien und Afrika verbreitet ist und vorwiegend in den Gebirgen wächst.
Der deutsche Name „Frauenmantel“ bezieht sich übrigens auf die Ähnlichkeit der gefältelten Blätter mit mittelalterlichen Mariendarstellungen.
A joint research team from KAUST and King Abdulaziz University pose for a group photo during the harvest of crops grown to test the effectiveness of superhydrophobic sand.
My tie apparently uses a treatment making it superhydrophobic ("the lotus effect"): nanoscale hairs making droplets roll off, preventing dirt buildup.
Alchemilla mollis with its remarkable superhydrophobic dew-catching leaves, offset beautifully by the pink eucalyptus leaf.
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/4859628386
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The Lotus Effect - Water droplets on hydrophob lotus leaf - Nelumbo nucifera
Read more about the Lotus effect: en.wikipedia.org/wiki/Lotus_effect
For more information about this plant, read en.wikipedia.org/wiki/Nelumbo_nucifera
Photo taken at the Conservatory of Flowers in Golden Gate Park (San Francisco)
For more information about the San Francisco Conservatory of Flowers, read en.wikipedia.org/wiki/Conservatory_of_Flowers
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.
Water drops roll off a screen door treated with one of Oak Ridge National Laboratory’s new superhydrophobic powder coatings. Even though the mesh is very porous to air, water drops do not pass through due to the extreme water repellency of the powder coating.
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/4859628306
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The Lotus Effect - Water droplets on hydrophobe lotus leaf
Read more about the Lotus effect: en.wikipedia.org/wiki/Lotus_effect
Nelumbo nucifera - For more information about this plant, read en.wikipedia.org/wiki/Nelumbo_nucifera
Photo taken at the Conservatory of Flowers in Golden Gate Park (San Francisco)
For more information about the San Francisco Conservatory of Flowers, read en.wikipedia.org/wiki/Conservatory_of_Flowers
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/4859007645
Share this photo on: facebook • twitter • more...
The Lotus Effect - Water droplets on hydrophobe lotus leaf
Read more about the Lotus effect: en.wikipedia.org/wiki/Lotus_effect
Nelumbo nucifera leaf. For more information about this plant, read en.wikipedia.org/wiki/Nelumbo_nucifera
Photo taken at the Conservatory of Flowers in Golden Gate Park (San Francisco)
For more information about the San Francisco Conservatory of Flowers, read en.wikipedia.org/wiki/Conservatory_of_Flowers
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.
Water Repellent Care for Leather & Textile
The AquaShield superhydrophobic treatment for leather and textiles is a nano-structured durable water repellent (DWR) suitable for all natural leathers, suedes, and most natural or synthetic textiles. A superior waterproofing and stain protection solution for both indoors and outdoors. Ideal for use on items from shoes to upholstery and rugs, the superhydrophobic coating is a PFOA and PFOS free water based formula containing self-assembling nano-polymers which provide long lasting protection from the elements.
Requiring as little as 50ml per square meter of leather, or 100ml per square meter of textile AquaShield Leather & Textile coating excels in comparison amongst average consumption rates in waterproofing sprays.
The superhydrophobic coating is an easy to apply spray offering lasting coverage up to two years with appropriate application, and requiring no upkeep.
AquaShield Leather & Textile superhydrophobic coating is entirely transparent with no discolouration once dry, and as well does not change the feel or breathability of the leather, suede, or textile it is applied to. Additional benefits include UV protection, resistance to mold and algae, and will greatly rejuvenate old dry leather.
As a water based, solvent free waterproofing solution AquaShield is non-toxic and presents no danger to the environment. It is an example of nanotechnology that replaces harmful carbon based technologies of the past wityh modern clean solutions.
AquaShield technology is PFOA and PFOS free. As an environmentally friendly, non-toxic, superhydrophobic solution it is a world leader in water repellent sprays and a prime example of nanotechnology applied in industry or in the home.
Ideal For Use On:
• All natural, untreated leather and suede
• Indoor and outdoor protection
• Heavy upholsetry including wool and synthetic materials.
• Rugs and carpets
• Outerwear from coats and hats to boots
Features and Benefits:
• Eco-friendly water based formula
• Exceptional superhydrophobic results
• Fast absorption in all textiles
• Easy to apply
• Industry leading consumption rate
• Maintains breathability of the substrate
• Fully transparent and causes no change to texture
• UV resistance
Hydrophobic Ceramic & Waterproof Nano Coatings - Global Opportunities Available 866-285-105. Visit Us @www.aquashieldpro.com
Pearl Nano Coatings - Jay from Eco Wash Hawaii - Ceramic Coating - Mustang Polished out to a mirror finish. Pearlnano.com EcoWashHawaii.com - Live on Oahu and Need your car paint corrected and coated with the Pearl nano coatings? Jay is the one to call. He is located at the Windward mall parking deck.
Maize crops grow in small plots in the rural Saudi Arabian village of Hada ash Sham. The plots are designed to test the effectiveness of superhydrophobic sand that KAUST Assistant Professor Himanshu Mishra and Ph.D. Student Adair Gallo Junior have developed.
Biblical interpretation translated to water droplets on superhydrophobic, photonic crystals.
Thank you to Dr. Shu Yang and Jie Li for proving samples.
A joint research team from KAUST and King Abdulaziz University harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.
Tomato plants grow in small plots in the rural Saudi Arabian village of Hada ash Sham. The plots are designed to test the effectiveness of superhydrophobic sand that KAUST Assistant Professor Himanshu Mishra and Ph.D. Student Adair Gallo Junior have developed.
So, trapped at home due to rain and electricity supply is interrupted. Luckily the camera battery is charged and am ready to set exposure, focus and time. These are leaves of white rose. Now the rose is distorted in shape and the leaves are perfect. Superhydrophobicity at work! look at those contact angles.
A joint research team from KAUST and King Abdulaziz University harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.
Mathew Boban, Macromolecular Science & Engineering PhD Student, and Kevin Gloving, Materials Science & Engineering PhD Student, test a superhydrophobic surface by burning it as part of its resistance testing against water in the NCRC on March 28, 2017.
Anish Tuteja, Associate Professor of Materials Science and Engineering and Associate Professor of Macromolecular Science and Engineering, and his research group have created a self-healing, water-repellent spray-on coating developed at the University of Michigan is hundreds of times more durable than its counterparts and could enable waterproofing of vehicles, clothing, rooftops and countless other surfaces.
Photo: Joseph Xu/Multimedia Content Producer, University of Michigan - College of Engineering
Maize crops grow in small plots in the rural Saudi Arabian village of Hada ash Sham. The plots are designed to test the effectiveness of superhydrophobic sand that KAUST Assistant Professor Himanshu Mishra and Ph.D. Student Adair Gallo Junior have developed.
Dinner with Paul and Akiko at this awesome macrobiotic joint. We were joined later on by Kotaro Watanabe who's a seriously crafty design engineer at takram. He created this really nice water project that was exhibited at 21_21 Design Sight during their last exhibition. There's a compound he formulated that he treats surfaces with, like these paper plates. It completely changes the expected behavior of water on surfaces, mucking with the surface tension dynamics. The water becomes playtful! Very excellent!
A joint research team from KAUST and King Abdulaziz University harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.
A joint research team from KAUST and King Abdulaziz University harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.
A researcher labels bags used to harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.
A joint research team from KAUST and King Abdulaziz University harvest a crop of tomatoes grown with the assistance of superhydrophobic sand.