Massachusetts Institute of Technology

H Three, Inc.

Daniel Oran

Edward Stuart Boyden

Fei Chen

Adam H Marblestone

Jifei Ou

Mark Andrew Skylar-Scott

Ruixuan Gao

Paul Warren Tillberg

Samuel Gordon Rodriques

Don Haddad

Shoh Asano

A sensor may include a knitted pocket and loose yarn that is inside a cavity of the pocket. In some cases, this loose yarn is neither woven, nor knit, nor otherwise part of a fabric. A resistive pressure sensor may include a knitted pocket and loose conductive yarn that is inside the pocket. Pressure applied to the pocket may compress the loose yarn, which may increase the number of electrical shorts between different parts of the loose yarn, which in turn may decrease the electrical resistance of the loose yarn. A capacitive sensor may include a knitted pocket and insulative loose yarn that is inside the pocket. A strain sensor may include knitted conductive pleats. Electrical shorts may occur in contact areas where neighboring pleats meet. As the strain sensor stretches, these contact areas may become smaller, causing the electrical resistance of the pleats as a group to increase.

Methods and apparatus for sensor or controller that includes knitted fabric

The present invention enables three-dimensional nanofabrication by isotropic shrinking of patterned hydrogels. A hydrogel is first expanded, the rate of expansion being controlled by the concentration of the crosslinker. The hydrogel is then infused with a reactive group and patterned in three dimensions using a photon beam through a limited-diffraction microscope. Functional particles or materials are then deposited on the pattern. The hydrogel is then shrunk and cleaved from the pattern.

Three-dimensional nanofabrication by patterning of hydrogels

The present invention facilitates and tracks personal referrals made via electronic networks. In a preferred embodiment, using electronic mail delivered to a participant interfacea central controllerprovides a Web page through which an individual may enter the electronic-mail addresses of those whom he or she wishes to refer. This spares the individual the inconvenience of generating his or her own electronic-mail referrals, and also enables the central controller to determine the format and tone of the referral. The address or contents of the Web page includes a unique identifier that is exclusively associated with that individual and a specific offerIn this way, the series of referrals may be tracked, duplicate referrals to the same electronic-mail address may be eliminated, offers may be withdrawn or modified, and referrals about an expired or withdrawn offer may be prevented.

Method and apparatus for facilitating and tracking personal referrals

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Cambridge, MA, United States of America

Daniel Oran