(ANI): Scientists at the Max Planck Institute for Coal Research, Academy and International Max Planck Research (SurMat ") were able to grow silica particles on a surface from a solution, so that it formed a regular pattern of small cones. Each cone of silica was formed by numerous spiral settled one above another, and each coil was formed by silica tubes, also prepared a specific pattern. Selected hierarchical structures of this kind, which are defined with any accuracy at large and small, were unknown to scientists except in nature, for example, bone, wood and seashells. Now however, it is technologically feasible to grow this class structures in test tubes, and this could allow engineers to produce optical and electronic components even smaller than today.
selected hierarchical structure of the silica particles was made from the reaction of a solution where they could grow many different forms of these particles. Mixed a silicon compound with an amine dragging a long fatty acid tail. Amine molecules assemble in micelles form long threads, and silica accumulates in these threads. If scientists immersed in the solution untreated support, for example, a lightly contaminated glass plate, the particles are random deposits: sometimes conical, sometimes in double cones, sometimes in their own ways of fibras.Para change this uncertain situation, the scientists put "bait" for special forms on the surface. Used a "seal" of silicone applied to the square glass of a substance with alkyl, and repel water. The glass itself attracts water. The edges of the squares who reject the water have a length of three micrometers, ie, three thousandths of a millimeter. Squares water repellents act as seeds: when chemicals glass plate immersed in the solution, after a little more than three days to construct a small cone in each square. The cones are solid as rocks but are made of long strands coiled. It is still not clear why the silica particles tend to congregate in the square agua.Atrayendo repel the particles to the surface wound the crystal, the scientists control the kind of hierarchical structure that ultimately make the particles.
silica cones grow like pixels on a substrate pre-treated. (Photo: Max-Planck-Institut für Kohlenforschung) (ANI): Scientists at the Max Planck Institute for Coal Research, and International Academy Max Planck Research (SurMat ") were able to grow on a silica particles surface from a solution, so that it formed a regular pattern of small cones. Each cone of silica was formed by numerous spiral settled on one another, and each coil was formed by silica tubes, arranged also with a specific pattern. Selected hierarchical structures of this kind, which are defined with any accuracy at large and small, were unknown to scientists except in nature, for example, bone, wood and seashells. Now however, it is technologically feasible to grow this class structures in test tubes, and this could allow engineers to produce optical and electronic components even smaller than today.
selected hierarchical structure of the silica particles was made from the reaction of a solution where they could grow many different forms of these particles. Mixed a silicon compound with an amine dragging a long fatty acid tail. Amine molecules assemble in micelles form long threads, and silica accumulates in these threads. If scientists immersed in the solution untreated support, for example, a lightly contaminated glass plate, the particles form random deposits: sometimes conical, sometimes in double cones, sometimes in their own ways of fibras.Para change this uncertain situation, the scientists put "bait" for special forms on the surface. Used a "seal" of silicone applied to the glass squares of a substance with alkyl, and repel water. The crystal itself attracts water. The edges of the squares who reject the water have a length of three micrometers, ie, three thousandths of a millimeter. Squares water repellents act as seeds: when chemicals glass plate immersed in the solution, after a little more than three days to construct a small cone in each square. The cones are solid as rocks but are made of long strands coiled. It is still not clear why the silica particles tend to congregate in the square to repel the particles agua.Atrayendo rolled to the surface of the crystal, the scientists control the kind of hierarchical structure finally take the particles.
selected hierarchical structure of the silica particles was made from the reaction of a solution where they could grow many different forms of these particles. Mixed a silicon compound with an amine dragging a long fatty acid tail. Amine molecules assemble in micelles form long threads, and silica accumulates in these threads. If scientists immersed in the solution untreated support, for example, a lightly contaminated glass plate, the particles are random deposits: sometimes conical, sometimes in double cones, sometimes in their own ways of fibras.Para change this uncertain situation, the scientists put "bait" for special forms on the surface. Used a "seal" of silicone applied to the square glass of a substance with alkyl, and repel water. The glass itself attracts water. The edges of the squares who reject the water have a length of three micrometers, ie, three thousandths of a millimeter. Squares water repellents act as seeds: when chemicals glass plate immersed in the solution, after a little more than three days to construct a small cone in each square. The cones are solid as rocks but are made of long strands coiled. It is still not clear why the silica particles tend to congregate in the square agua.Atrayendo repel the particles to the surface wound the crystal, the scientists control the kind of hierarchical structure that ultimately make the particles.
silica cones grow like pixels on a substrate pre-treated. (Photo: Max-Planck-Institut für Kohlenforschung) (ANI): Scientists at the Max Planck Institute for Coal Research, and International Academy Max Planck Research (SurMat ") were able to grow on a silica particles surface from a solution, so that it formed a regular pattern of small cones. Each cone of silica was formed by numerous spiral settled on one another, and each coil was formed by silica tubes, arranged also with a specific pattern. Selected hierarchical structures of this kind, which are defined with any accuracy at large and small, were unknown to scientists except in nature, for example, bone, wood and seashells. Now however, it is technologically feasible to grow this class structures in test tubes, and this could allow engineers to produce optical and electronic components even smaller than today.
selected hierarchical structure of the silica particles was made from the reaction of a solution where they could grow many different forms of these particles. Mixed a silicon compound with an amine dragging a long fatty acid tail. Amine molecules assemble in micelles form long threads, and silica accumulates in these threads. If scientists immersed in the solution untreated support, for example, a lightly contaminated glass plate, the particles form random deposits: sometimes conical, sometimes in double cones, sometimes in their own ways of fibras.Para change this uncertain situation, the scientists put "bait" for special forms on the surface. Used a "seal" of silicone applied to the glass squares of a substance with alkyl, and repel water. The crystal itself attracts water. The edges of the squares who reject the water have a length of three micrometers, ie, three thousandths of a millimeter. Squares water repellents act as seeds: when chemicals glass plate immersed in the solution, after a little more than three days to construct a small cone in each square. The cones are solid as rocks but are made of long strands coiled. It is still not clear why the silica particles tend to congregate in the square to repel the particles agua.Atrayendo rolled to the surface of the crystal, the scientists control the kind of hierarchical structure finally take the particles.
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