Materials and devices are provided for the sensing and manipulation of biomechanical and physiochemical properties of tissues or tissue surfaces. Examples of use include soft tissues such as skin or adipose tissues or more dense tissues such as muscle or heart or dense tissues such as bone. The materials and devices provide for in vivo measurements of biomechanical properties at the tissue surface, e.g. near surface regions of the epidermis or dermis or underlying structures. The devices can be non-invasive and/or non-destructive to the material and, especially for the biomaterials, can be biocompatible and/or biodegradable. The materials and devices can use ultrathin, stretchable networks of mechanical actuators and sensors constructed with nanoribbons of piezoelectric materials.

A PEFS (Piezoelectric Finger Sensor) acts as an electronic finger capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. The PEFS may be incorporated into a portable hand-held device. The PEFS offers superior sensitivity.

A display device includes a touch sensor, a fingerprint sensor, and a sensor driver. The touch sensor generates a touch sensing signal in response to touch of an object on a display panel. The fingerprint sensor detects the object in a first mode to generate a first sensing signal and detects the object in a second mode to generate a second sensing signal. The sensor driver calculates a touch position and a moisture level of the object based on the touch sensing signal, generates fingerprint information based on the first sensing signal, and corrects the moisture level based on the second sensing signal.

Provided are wireless electronic devices for thermally interfacing with a biological tissue. The device may have a flexible substrate; a thermal actuator supported by said flexible substrate configured to provide a thermal input to said biological tissue; a temperature sensor supported by said flexible substrate configured to measure a temperature to determine thermal conductivity of said biological tissue; and a wireless electronic system in electronic communication with said thermal actuator and said temperature sensor, wherein said wireless electronic system is configured to provide two-way communication with an external controller. Also provided are related methods of using the electronic devices, including for cosmetic, beauty, or medical applications.

The present invention relates to a sensor for non-invasive optoacoustic measurements of biomechanical and/or morphological features of skin and/or other tissue.

The present disclosure addresses the problem of providing a method for evaluating the state of skin by employing a simple measurement measure, for example a method for evaluating the degree of aging of skin, the elasticity of skin, the sagging of skin or the wrinkling of skin, and the present disclosure provides a skin state evaluation method in which the state of skin is evaluated by employing the state of downy hair on skin as a criterion for the determination. More specifically, the present disclosure relates to a method for evaluating the state of skin by employing, as an evaluation item, at least one of the density of downy hairs, the thickness of downy hair and the length of downy hair. Also provided are an apparatus and program both for performing the evaluation of the state of skin by employing the state of downy hair on skin as a criterion for the determination.

An electronic apparatus and a method for providing skin inspection information thereof are provided. The method includes the following steps. If it is determined that current measurement information is received, a result assessment page showing a detection result of the current measurement information is displayed via a screen, to show whether the detection result achieves a skin goal via the result assessment page. A skin overview page is displayed in response to receipt of an operation performed on the result assessment page. A goal setting page is displayed via the screen in response to receipt of a first operation performed on the skin overview page, and setting of the skin goal is received via the goal setting page. A detail analysis page associated with one of skin parameters is displayed via the screen in response to receipt of a second operation performed on the skin overview page.

A method and device for analyzing and treating tonal imperfections on human skin. The method has the steps of providing a preselected background L value. One or more treatment images of the skin are taken and at least one localized L value of individual pixels or group of pixels is calculated within the treatment image. The local L value is compared to the background L value. Skin deviations are areas of skin where the absolute value of the difference between a local L and the background L is greater than a predetermined L.sub.S. Skin deviations are identified by this method and then treated with a treatment composition.

In some embodiments of the present disclosure, a system for processing three-dimensional face scan data is provided. A three-dimensional scanner produces an image of a face including an area of interest that includes an eyebag area. A profile of the eyebag area is determined by the system. In some embodiments, the profile is determined based on a vertical slice at the center of the eyebag area. Profiles for multiple sets of scan data may be compared to determine quantitative differences between eyebag profiles. These differences may be used for quantitatively comparing the effects of products applied to the eyebag area between scans. These differences may also be used for predictively generating three-dimensional models to illustrate predicted effects of the use of a product on a face.

The present invention relates to a sensor device for measuring tensile variation against a membrane separating a liquid such as the skin on humans and animals and any other membrane separating a liquid on one of its sides.