公开(公告)号：US20200080978A1

公开(公告)日：2020-03-12

申请号：US16573680

申请日：2019-09-17

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Benjamin Bunes ,  Miao Xu

IPC: G01N33/00 ,  G01N27/12

Abstract: A multimode gas sensor platform can comprise an array of electrode pairs oriented on a substrate and a plurality of detection zones, wherein at least a portion of individual electrode pairs are separately addressable. Each detection zone can comprise at least one set of individual electrode pairs within the array, where the individual electrode pairs have organic nanofibers uniformly deposited thereon. The organic nanofibers can be responsive to association with a corresponding target material and at least one detection zone can be electronically responsive to the corresponding target material.

公开(公告)号：US20200018713A1

公开(公告)日：2020-01-16

申请号：US16510742

申请日：2019-07-12

Applicant: University of Utah Research Foundation

Inventor： Benjamin R Bunes ,  Leonard Cardillo ,  Douglas Later ,  Ling Zang

IPC: G01N27/12 ,  G01R23/02 ,  G01N33/00 ,  C07D471/06

Abstract: A system for low power chemical sensing can include a voltage shift unit which receives a voltage signal from a chemical sensor unit. The voltage signal can be determined by a concentration of an analyte. The voltage shift unit can transform the voltage signal to an input voltage signal, and send the input voltage signal to a plurality of frequency selective surface (FSS) units of an FSS array. The FSS array can communicate a radio frequency (RF) signal in an Institute of Electrical and Electronics Engineers (IEEE) S band with a resonant frequency based on the input voltage to provide the concentration of the analyte.

公开(公告)号：US10128052B1

公开(公告)日：2018-11-13

申请号：US15668688

申请日：2017-08-03

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Daniel Jacobs

IPC: H01L21/00 ,  H01G9/00 ,  H01L51/00 ,  H01G9/20 ,  H01L51/42

Abstract: A method for thermally induced recrystallization of a film having a perovskite structure can include exposing the perovskite structure to a liquid phase induction atmosphere sufficient to at least partially liquefy the film. The substrate with the film can be heated while in the atmosphere to a heating temperature above a critical recrystallization temperature until the film recrystallizes to reform the perovskite structure with reduced defects and increased grain size. The liquid phase induction atmosphere can be purged, and the substrate with the film having the reformed perovskite structure can be allowed to cool. The film having the perovskite structure can have a formula ABX3, (RA)2An−1BnX3n+1, or (RA2)An−1BnX3n+1, where A is a monovalent cation, B is divalent metal cation, n is an integer, X is a halide ion, RA is an alkylammonium cation and RA2 is an alkyldiammonium cation.

公开(公告)号：US10151720B2

公开(公告)日：2018-12-11

申请号：US15342957

申请日：2016-11-03

Applicant: University of Utah Research Foundation

Inventor： Chen Wang ,  Ling Zang ,  Benjamin Bunes

IPC: G01N27/12 ,  G01N33/00

Abstract: A nanofiber composite sensor for detecting alkanes can include a network of contacting nanofibers having multiple contact points. Each contact point can form an interfiber interface of interdigitated alkyl chains. Alkanes can be adsorbed at the interfiber interface which results in an increased interfiber distance between first and second nanofibers and a decreased charge transfer efficiency. The detected alkanes can be in a vapor or liquid phase.

公开(公告)号：US20180348129A1

公开(公告)日：2018-12-06

申请号：US15820150

申请日：2017-11-21

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Yanke Che

IPC: G01N21/64 ,  C09K11/06 ,  C07D491/06 ,  C07D471/06

CPC classification number: G01N21/6428 ,  C07D471/06 ,  C07D491/06 ,  C09K11/06 ,  C09K2211/1011 ,  G01N2021/6432 ,  Y10T428/2973 ,  Y10T428/298 ,  Y10T436/173845

Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A′ are independently chosen from N—R1, N—R2, and O such that both A and A′ are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.

公开(公告)号：US09823193B2

公开(公告)日：2017-11-21

申请号：US13942219

申请日：2013-07-15

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Yanke Che

IPC: G01N21/64 ,  C07D491/06 ,  C07D471/06 ,  C09K11/06

CPC classification number: G01N21/6428 ,  C07D471/06 ,  C07D491/06 ,  C09K11/06 ,  C09K2211/1011 ,  G01N2021/6432 ,  Y10T428/2973 ,  Y10T428/298 ,  Y10T436/173845

Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A′ are independently chosen from N—R1, N—R2, and O such that both A and A′ are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.

公开(公告)号：US20170110678A1

公开(公告)日：2017-04-20

申请号：US14807527

申请日：2015-07-23

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Benjamin R. Bunes

IPC: H01L51/05 ,  G01N27/414 ,  H01L51/00

CPC classification number: H01L51/0554 ,  G01N27/4141 ,  H01L51/0006 ,  H01L51/001 ,  H01L51/0022 ,  H01L51/0053 ,  H01L51/0545 ,  H01L51/0558

Abstract: A chemical sensing field effect transistor device is disclosed. The device can include a control gate structure interfacing a control side of a semiconductor channel region, a source region, and a drain region. The control gate structure can comprise a control gate dielectric and a control gate electrode. The device can include a sensing gate structure interfacing the semiconductor channel region, the source region, and the drain region at a sensing side of the semiconductor channel region opposite the control gate structure. The sensing gate structure can comprise a sensing gate dielectric, and a sensing gate electrode. The device can include a functional layer interfacing the sensing gate electrode opposite the sensing gate dielectric. The functional layer can have an exposed interface surface. The functional layer can be capable of binding with a target analyte material sufficient to create a measurable change in conductivity across the semiconductor channel region.

公开(公告)号：US20210341373A1

公开(公告)日：2021-11-04

申请号：US17239247

申请日：2021-04-23

Applicant: University of Utah Research Foundation ,  Vaporsens, Inc.

Inventor： Ling Zang ,  Jayc Johnson ,  Paul Slattum ,  Benjamin Ross Bunes ,  Douglas Wayne Later

IPC: G01N15/10 ,  G01N33/15 ,  D01F9/00

Abstract: A sensor to detect solid particles of a target salt can include a support substrate, an adsorption layer, a sensing layer oriented between the support substrate and the adsorption layer, and an electrode pair in contact with the sensing layer and separated by the sensing layer. The adsorption layer can include an ion exchange medium formed of a first porous structured material functionalized with basic or acidic functional groups. The basic or acidic functional groups can remove an acid or base component from the target salt to form a free base or free acid, respectively, of the target salt. The sensing layer can include a second porous structured material functionalized to detect the free base or acid of the target salt by a change in conductivity.

公开(公告)号：US09452989B2

公开(公告)日：2016-09-27

申请号：US14403540

申请日：2013-05-24

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Jimin Han ,  Xu Miao

IPC: G01N21/64 ,  G01N21/63 ,  B82Y15/00 ,  G01J3/46 ,  G01T1/10 ,  C07D235/20 ,  C07D235/02

CPC classification number: C07D235/20 ,  B82Y15/00 ,  C07D235/02 ,  G01J3/46 ,  G01N21/63 ,  G01N21/64 ,  G01N21/6428 ,  G01T1/10

Abstract: Methods, compositions, and systems for detecting gamma radiation is disclosed and described. A compound for detecting gamma radiation can comprise a conjugated imidazole having the following structure: [Formula I] where at least one of R1, R2, and R3 are conjugated organic groups. Additionally, the conjugated imidazole can be capable of reacting with a radical or ion formed by the reaction of gamma radiation with a radical generating component such as a halogen solvent to decrease a molar extinction coefficient of the conjugated imidazole in the visible light region or to quench fluorescence of the conjugated imidazole. As a sensor (100), a radiation detection indicator (108) can indicate the change in molar extinction coefficient or fluorescence of the conjugated imidazole material (120) upon exposure to gamma radiation.

公开(公告)号：US20130302902A1

公开(公告)日：2013-11-14

申请号：US13942219

申请日：2013-07-15

Applicant: University of Utah Research Foundation

Inventor： Ling Zang ,  Yanke Che

IPC: G01N21/64

CPC classification number: G01N21/6428 ,  C07D471/06 ,  C07D491/06 ,  C09K11/06 ,  C09K2211/1011 ,  G01N2021/6432 ,  Y10T428/2973 ,  Y10T428/298 ,  Y10T436/173845

Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A′ are independently chosen from N—R1, N—R2, and O such that both A and A′ are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.

Abstract translation: 已经开发了具有高灵敏度，选择性和光稳定性的感官材料用于有机胺的蒸气探测。 感官材料是具有胺结合基团和下式的苝-3,4,9,10-四羧基化合物，其中A和A'独立地选自N-R 1，N-R 2和O，使得A和A '不为O，并且R 1至R 10为胺结合部分，溶解度增强基团或氢，使得R 1至R 10中的至少一个为胺结合部分。 该苝化合物可形成明确定义的纳米纤维。 在沉积到基底上时，缠结的纳米纤维形成网状，高度多孔的膜，其能够使气体分析物分子在膜基质内有利地扩散，导致用于蒸气感测的毫秒响应。