公开(公告)号：US12018381B2

公开(公告)日：2024-06-25

申请号：US17892014

申请日：2022-08-19

Applicant: Purdue Research Foundation

Inventor： Rahim Rahimi ,  Sotoudeh Sedaghat Hoor

IPC: C23C26/00 ,  A61B5/145

CPC classification number: C23C26/00 ,  A61B5/14532

Abstract: A method of manufacturing a copper oxide (CuxO) structure onto a Copper (Cu) surface by fabricating an electroactive hierarchical CuxO structure directly onto the Cu surface by laser-induced oxidation (LIO). The generated heat from the laser source provides energy for the oxidation of the Cu surface in the presence of atmospheric oxygen. The electroactive hierarchical CuxO structure is a binder-free nanotextured structure. The electroactive hierarchical CuxO structure may be used as a glucose sensor.

公开(公告)号：US12006509B2

公开(公告)日：2024-06-11

申请号：US16896278

申请日：2020-06-09

Applicant: Purdue Research Foundation

Inventor： Sophie Andree Lelievre ,  Rahim Rahimi ,  Tim Kwok

IPC: C12N5/00 ,  C12M1/12 ,  C12N5/09

CPC classification number: C12N5/0068 ,  C12M25/14 ,  C12N5/0062 ,  C12N5/0693 ,  C12N2533/30 ,  C12N2533/52 ,  C12N2533/54 ,  C12N2533/80

Abstract: A collagen-fibronectin-based method enables the production of tumors of centimeter size with recognizable pathological traits. The method supports reproducing tumor heterogeneity with preinvasive and invasive phenotypes and stacking of tumor portions using a paper-scaffold with 80 μm-punched holes for larger nodule creation and easy separation of tumor portions for analysis. Macrotumors are convenient for testing drug delivery and therapeutic tools that necessitate a minimum tumor size relevant to in vivo.

公开(公告)号：US20240168184A1

公开(公告)日：2024-05-23

申请号：US18224913

申请日：2023-07-21

Applicant: Purdue Research Foundation

Inventor： Rahim Rahimi

IPC: G01T1/24 ,  A61L2/08 ,  A61L2/28 ,  G01T1/02

CPC classification number: G01T1/24 ,  A61L2/081 ,  A61L2/28 ,  G01T1/026 ,  A61L2202/14 ,  A61L2202/18

Abstract: A system may receive a package previously irradiated for sterilization. The package may have a sensor comprising a reference tag and sensing tag at least partially coated with a material comprising poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and Polyurethan (PU). The system may scan the sensing tag and the reference tag. The system may determine, based on radio frequency (RF) signals reflected from the sensing tag and reference tag, the sensor is exposed to radiation. The system may output a quality measure indicative of the sensor being exposed to radiation.

公开(公告)号：US11960037B2

公开(公告)日：2024-04-16

申请号：US17569031

申请日：2022-01-05

Applicant: Purdue Research Foundation

Inventor： Rahim Rahimi

IPC: G01T1/02 ,  H01L27/30 ,  H10K39/32 ,  H10K77/10

CPC classification number: G01T1/026 ,  H10K39/32 ,  H10K77/111

Abstract: A printed radiation sensor that includes a substrate, an interdigitated electrode, and a conductive polymeric film. The interdigitated electrode including a first electrode with a plurality of first electrode digits and a second electrode with a plurality of second electrode digits. The interdigitated electrode disposed on the substrate. The conductive polymeric film including a blend of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and polyvinyl alcohol (PVA). The PEDOT:PSS is configured to provide an electrically conductive medium. The PVA is configured to provide ductility and stability of the printed radiation sensor. Upon radiation exposure, the PVA is further configured to crosslink within a material matrix of the printed radiation sensor militating against the recombination of chain scission by forming a semi-interpenetrating polymer network (SIPN) with the PEDOT:PSS to provide an enhanced and stable impedance reading.

公开(公告)号：US11957058B2

公开(公告)日：2024-04-09

申请号：US18111545

申请日：2023-02-18

Applicant: Purdue Research Foundation

Inventor： Mukerrem Cakmak ,  Armen Yildirim ,  Rahim Rahimi

IPC: C08K3/04 ,  H01L41/08 ,  H01L41/18 ,  H04R17/00 ,  H10N30/85 ,  H10N30/87

CPC classification number: H10N30/852 ,  H04R17/005 ,  H10N30/875 ,  H10N30/878

Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.

公开(公告)号：US11919207B2

公开(公告)日：2024-03-05

申请号：US16519904

申请日：2019-07-23

Applicant: Purdue Research Foundation

Inventor： Babak Ziaie ,  Rahim Rahimi

IPC: B29C39/10 ,  A41D1/00 ,  B29C45/14 ,  B29C70/68 ,  B29C70/82 ,  F25D15/00 ,  B29C70/88

CPC classification number: B29C39/10 ,  A41D1/005 ,  B29C45/14065 ,  B29C70/682 ,  B29C70/82 ,  F25D15/00 ,  B29C70/885 ,  F25D2400/26 ,  F28F2255/02

Abstract: A wearable accessory capable of communicating data to actuators or from sensors is disclosed. The wearable accessory includes a conductor wire disposed in a moldable medium according to a predetermined pattern, the moldable medium being an electrically insulating material, the conductor wire terminating at an input and an output.

公开(公告)号：US20230240146A1

公开(公告)日：2023-07-27

申请号：US18111545

申请日：2023-02-18

Applicant: Purdue Research Foundation

Inventor： Mukerrem Cakmak ,  Armen Yildirim ,  Rahim Rahimi

IPC: H10N30/85 ,  H04R17/00 ,  H10N30/87

CPC classification number: H10N30/852 ,  H04R17/005 ,  H10N30/875 ,  H10N30/878

Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.

公开(公告)号：US11588097B2

公开(公告)日：2023-02-21

申请号：US16699084

申请日：2019-11-28

Applicant: Purdue Research Foundation

Inventor： Mukerrem Cakmak ,  Armen Yildirim ,  Rahim Rahimi

IPC: C08K3/04 ,  H01L41/08 ,  H01L41/18 ,  H04R17/00 ,  H01L41/047

Abstract: A transducer is disclosed which includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length providing an electrical connectivity to an external circuit, a second conductive protective electrode having the width and the length providing an electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes.

公开(公告)号：US20220346658A1

公开(公告)日：2022-11-03

申请号：US17733469

申请日：2022-04-29

Applicant: Purdue Research Foundation

Inventor： Rahim Rahimi

IPC: A61B5/03 ,  A61B5/00

Abstract: A microfluidic pressure sensor may include a bioinert shell having a cavity disposed therein. The cavity may include a reservoir and hydrophobic channel fluidly connected to the reservoir. Changes in pressure outside of the microfluidic pressure sensor may cause at least a portion of the shell to inflect into the reservoir thereby the fluid to move into the channel. The microfluidic pressure sensor may be bodily injected and the fluid level in the cavity may be detected using an ultrasound. The fluid level may be translated into a pressure measurement. The microfluid pressure sensor and uses thereof are suitable for bodily pressure measurements, including intra-abdominal pressure.

公开(公告)号：US10772560B2

公开(公告)日：2020-09-15

申请号：US15723157

申请日：2017-10-02

Applicant: Purdue Research Foundation

Inventor： Babak Ziaie ,  Manuel P. Ochoa ,  Vaibhav Jain ,  Rahim Rahimi

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/053

Abstract: A wearable paper-based platform with simultaneous passive and active feedback for monitoring perspiration is provided. The sensor platform comprises two modules: a disposable wicking-based sweat collection patch with discrete colorimetric feedback, and a reusable electronic detachable module for active feedback. The disposable patch comprises a hygroscopic wicking material laminated between two polymeric films. The wicking material is patterned with a radial finger design that offers discretized visual readout of the sensor. The active module attaches to the film and alerts the user when the film collects a pre-determined volume of sweat. The multi-feedback system allows high-performance athletes who value objective quantification of perspiration to better assess their sweat loss during physical activities.