公开(公告)号：US20180154627A1

公开(公告)日：2018-06-07

申请号：US15880537

申请日：2018-01-26

Applicant: Massachusetts Institute of Technology

Inventor： Lining Yao ,  Wen Wang ,  Jifei Ou ,  Chin-Yi Cheng ,  Guanyun Wang ,  Hiroshi Ishii ,  Daniel Wang ,  Helene Steiner ,  Clark Della Silva

IPC: B33Y80/00 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B33Y80/00 ,  B29C64/106 ,  B29C64/112 ,  B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00

Abstract: A composite film includes a substrate that is not responsive to relative humidity, and also one or more layers of hygromorphic material. The hygromorphic material expands in response to an increase in relative humidity and contracts in response to a decrease in relative humidity. In some cases, the composite film is bi-layer or tri-layer. The composite films are fabricated such that they undergo a desired bending pattern in response to changes in relative humidity. In some cases, these bending patterns are combinations of two bending primitives: a smooth curve and a sharply angled curve. These two primitives are combined to create a variety of shape transformations including 1D linear transformation, 2D surface expansion and contraction, 2.5D texture change and 3D folding. Any type of hygromorphic material may be employed, including living gram positive and gram negative bacterial cells, yeast cells, plant cells, mammalian cells, cell debris, or hydrogel.

公开(公告)号：US20190320705A1

公开(公告)日：2019-10-24

申请号：US16504165

申请日：2019-07-05

Applicant: Massachusetts Institute of Technology ,  Syracuse University

Inventor： Wen Wang ,  Lining Yao ,  Chin-Yi Cheng ,  Teng Zhang ,  Hiroshi Ishii ,  Daniel Wang ,  Daniel Levine

IPC: A23P20/20 ,  A23L27/00 ,  A23L5/00 ,  A23L29/281

Abstract: An edible structure may comprise a gelatin film and fiber strips. The gelatin film may have a higher density of gelatin in a first layer of the film than in a second layer of the film. The fiber strips may be attached to the first layer, and may have an initial orientation, thickness and density. The structure may be configured to undergo a shape transformation when the apparatus hydrates. During the transformation, the film may transform from a flat film into a curved, 3D film. Which specific shape results from the transformation may depend, at least in part, on the initial orientation, thickness and density of the fiber strips. The film may include flavorings or other additives. In some cases, the transformation may change a texture of the structure. In some cases, the transformation may be caused, at least in part, by a change in temperature.

公开(公告)号：US20180103678A1

公开(公告)日：2018-04-19

申请号：US15787639

申请日：2017-10-18

Applicant: Massachusetts Institute of Technology ,  Syracuse University

Inventor： Wen Wang ,  Lining Yao ,  Chin-Yi Cheng ,  Teng Zhang ,  Hiroshi Ishii ,  Daniel Wang ,  Daniel Levine

IPC: A23P20/20

CPC classification number: A23P20/20 ,  A23L5/55 ,  A23L27/79 ,  A23L29/284

Abstract: An edible structure may comprise a gelatin film and fiber strips. The gelatin film may have a higher density of gelatin in a first layer of the film than in a second layer of the film. The fiber strips may be attached to the first layer, and may have an initial orientation, thickness and density. The structure may be configured to undergo a shape transformation when the apparatus hydrates. During the transformation, the film may transform from a flat film into a curved, 3D film. Which specific shape results from the transformation may depend, at least in part, on the initial orientation, thickness and density of the fiber strips. The film may include flavorings or other additives. In some cases, the transformation may change a texture of the structure. In some cases, the transformation may be caused, at least in part, by a change in temperature.