公开(公告)号：US11067511B2

公开(公告)日：2021-07-20

申请号：US16576553

申请日：2019-09-19

Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE

Inventor： Joseph J. Brown ,  Omkar D. Supekar ,  Victor M. Bright ,  Juliet T. Gopinath ,  Alan R. Greenberg

IPC: G01J3/44 ,  G01N21/65 ,  B01D65/10 ,  G01N17/00

Abstract: Methods and devices for real-time detection of fouling chemistry are described herein. In one aspect, a method of detecting and characterizing fouling of a membrane used for separation in a fluid-based system can include illuminating the membrane with one or more light sources, collecting Raman spectroscopy data from the membrane, and based on the Raman data, determining at least one selected from the group consisting of: presence or absence of membrane fouling, severity of membrane fouling, and composition of the membrane fouling, where the Raman spectroscopy is selected from the group consisting of Coherent Anti-Stokes Raman Scattering (CARS), Stimulated Raman Scattering (SRS), and spontaneous Raman Scattering.

公开(公告)号：US20190265460A1

公开(公告)日：2019-08-29

申请号：US16288176

申请日：2019-02-28

Applicant: The Regents of the University of Colorado, a body corporate

Inventor： Juliet T. Gopinath ,  Victor M. Bright ,  Mo Zohrabi ,  Omkar D. Supekar ,  Robert H. Cormack ,  Wei Yang Lim

IPC: G02B26/00 ,  G02B3/12

Abstract: A tunable optical electrowetting element having a liquid-liquid interface shape controlled by an applied voltage. Circuitry for applying a voltage to the electrowetting element is configured to apply a shaped voltage signal comprising a first fast-rising signal combined with a second fast-rising signal. The second signal is selected to damp oscillations in the liquid-liquid interface caused by the first signal.

公开(公告)号：US20240159942A1

公开(公告)日：2024-05-16

申请号：US18508114

申请日：2023-11-13

Applicant: The Regents of the University of Colorado, a body corporate

Inventor： Juliet T. Gopinath ,  Samuel D. Gilinsky ,  Mo Zohrabi ,  Victor M. Bright ,  Omkar D. Supekar ,  Wei Yang Lim

IPC: G02B3/00 ,  G02B3/14 ,  G02F1/29

CPC classification number: G02B3/0056 ,  G02B3/14 ,  G02F1/294

Abstract: A microlens array includes a bottom electrode chip, a sidewall electrode chip, and a top glass chip configured to cooperate to define an array of cavities, each one of the array of cavities containing a fluid. The fluid is a mixture of a polar liquid and a non-polar liquid, in contact with one of the array of sidewalls at a contact angle. The bottom electrode chip includes a plurality of electrical contacts. The sidewall electrode chip includes an array of sidewalls, each including an electrode layer and an insulator layer. When a voltage is applied across the fluid contained a cavity via electrical contacts and the electrode layer of the cavity, the contact angle of the fluid with the sidewall is modified, in embodiments without affecting the contact angle of fluid contained in other ones of the plurality of array of cavities.