13 results on '"Colour display"'
Search Results
2. Application to sarcosine detection
- Author
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Ferreira, Nádia S., Carneiro, Liliana P.T., Viezzer, Christian, Almeida, Maria J. T., Marques, Ana C., Pinto, Alexandra M. F. R., Fortunato, Elvira, Sales, M. Goreti F., UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias, CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N), and DCM - Departamento de Ciência dos Materiais
- Subjects
Electrochromic cell ,Molecularly imprinted polymer ,Cancer biomarker ,SDG 3 - Good Health and Well-being ,Chemical Engineering(all) ,Electrochemistry ,Sarcosine ,Colour display ,Passive direct methanol fuel cell ,Analytical Chemistry - Abstract
Funding Information: The authors acknowledge the financial support of EU-Horizon 2020 (Symbiotic, FET-Open, GA665046), and from national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, UIDP/50025/2020, UIDB/50025/2020 and UID/EMS/00532/2019. Nádia Ferreira (SFRH/BD/122955/2016), Liliana Carneiro (SFRH/BD/122954/2016), and Ana Carolina Marques (SFRH/BD/115173/2016) acknowledge Fundação para a Ciência e Tecnologia (FCT) for financial support. Publisher Copyright: © 2022 The Author(s) This work describes an innovative electrochemical biosensor that advances its autonomy toward an equipment-free design. The biosensor is powered by a passive direct methanol fuel cell (DMFC) and signals the response via an electrochromic display. Briefly, the anode side of the DMFC power source was modified with a biosensor layer developed using molecularly imprinted polymer (MIP) technology to detect sarcosine (an amino acid derivative that is a potential cancer biomarker). The biosensor layer was anchored on the surface of the anode carbon electrode (carbon black with Pt/Ru, 40:20). This was done by bulk radical polymerization with acrylamide, bis-acrylamide, and vinyl phosphonic acid. This layer selectively interacted with sarcosine when integrated into the passive DMFC (single or multiple, in a stack of 4), which acted as a transducer element in a concentration-dependent process. Serial assembly of a stack of hybrid DMFC/biosensor devices triggered an external electrochromic cell (EC) that produced a colour change. Calibrations showed a concentration-dependent sarcosine response from 3.2 to 2000 µM, which is compatible with the concentration of sarcosine in the blood of prostate cancer patients. The final DMFC/biosensor-EC platform showed a colour change perceptible to the naked eye in the presence of increasing sarcosine concentrations. This colour change was controlled by the DMFC operation, making this approach a self-controlled and self-signalling device. Overall, this approach is a proof-of-concept for a fully autonomous biosensor powered by a chemical fuel. This simple and low-cost approach offers the potential to be deployed anywhere and is particularly suitable for point-of-care (POC) analysis. publishersversion published
- Published
- 2022
3. Passive direct methanol fuel cells acting as fully autonomous electrochemical biosensors: Application to sarcosine detection
- Author
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Silva Ferreira, Nadia, Carneiro, Liliana P.T, Viezzer, Christian, Almeida, Maria J.T., Marques, Ana C., Pinto, Alexandra M.F.R., Fortunato, Elvira, Ferreira Sales, Maria Goreti, and Repositório Científico do Instituto Politécnico do Porto
- Subjects
Molecularly imprinted polymer ,Electrochromic cell ,History ,Polymers and Plastics ,Cancer biomarker ,General Chemical Engineering ,Electrochemistry ,Sarcosine ,Colour display ,Business and International Management ,Passive direct methanol fuel cell ,Industrial and Manufacturing Engineering ,Analytical Chemistry - Abstract
This work describes an innovative electrochemical biosensor that advances its autonomy toward an equipment-free design. The biosensor is powered by a passive direct methanol fuel cell (DMFC) and signals the response via an electrochromic display. Briefly, the anode side of the DMFC power source was modified with a biosensor layer developed using molecularly imprinted polymer (MIP) technology to detect sarcosine (an amino acid derivative that is a potential cancer biomarker). The biosensor layer was anchored on the surface of the anode carbon electrode (carbon black with Pt/Ru, 40:20). This was done by bulk radical polymerization with acrylamide, bis-acrylamide, and vinyl phosphonic acid. This layer selectively interacted with sarcosine when integrated into the passive DMFC (single or multiple, in a stack of 4), which acted as a transducer element in a concentration-dependent process. Serial assembly of a stack of hybrid DMFC/biosensor devices triggered an external electrochromic cell (EC) that produced a colour change. Calibrations showed a concentration-dependent sarcosine response from 3.2 to 2000 µM, which is compatible with the concentration of sarcosine in the blood of prostate cancer patients. The final DMFC/biosensor-EC platform showed a colour change perceptible to the naked eye in the presence of increasing sarcosine concentrations. This colour change was controlled by the DMFC operation, making this approach a self-controlled and self-signalling device. Overall, this approach is a proof-of-concept for a fully autonomous biosensor powered by a chemical fuel. This simple and low-cost approach offers the potential to be deployed anywhere and is particularly suitable for point-of-care (POC) analysis., The authors acknowledge the financial support of EU-Horizon 2020 (Symbiotic, FET-Open, GA665046), and from national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, UIDP/50025/2020, UIDB/50025/2020 and UID/EMS/00532/2019. Nádia Ferreira (SFRH/BD/122955/2016), Liliana Carneiro (SFRH/BD/122954/2016), and Ana Carolina Marques (SFRH/BD/115173/2016) acknowledge Fundação para a Ciência e Tecnologia (FCT) for financial support.
- Published
- 2022
4. Passive direct methanol fuel cells acting as fully autonomous electrochemical biosensors: Application to sarcosine detection.
- Author
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Ferreira, Nádia S., Carneiro, Liliana P.T., Viezzer, Christian, Almeida, Maria J.T., Marques, Ana C., Pinto, Alexandra M.F.R., Fortunato, Elvira, and Sales, M. Goreti F.
- Subjects
- *
DIRECT methanol fuel cells , *ELECTROCHROMIC devices , *METHANOL as fuel , *AMINO acid derivatives , *IMPRINTED polymers , *PROSTATE cancer patients , *FUEL cells , *CARBON electrodes - Abstract
[Display omitted] • Self-powered fuel cell/biosensor and equipment-free reading device for sarcosine. • Fuel cell with a sarcosine imprinted polymer that turn the power of the cell concentration dependent. • Hybrid cell triggers electrochromic unit to change colour in a concentration dependent manner. • Fuel cell stack to have sufficient energy for triggering a colour change at the electrochromic cell. • The colour depends on the concentration of sarcosine, generating an equipment free approach. This work describes an innovative electrochemical biosensor that advances its autonomy toward an equipment-free design. The biosensor is powered by a passive direct methanol fuel cell (DMFC) and signals the response via an electrochromic display. Briefly, the anode side of the DMFC power source was modified with a biosensor layer developed using molecularly imprinted polymer (MIP) technology to detect sarcosine (an amino acid derivative that is a potential cancer biomarker). The biosensor layer was anchored on the surface of the anode carbon electrode (carbon black with Pt/Ru, 40:20). This was done by bulk radical polymerization with acrylamide, bis-acrylamide, and vinyl phosphonic acid. This layer selectively interacted with sarcosine when integrated into the passive DMFC (single or multiple, in a stack of 4), which acted as a transducer element in a concentration-dependent process. Serial assembly of a stack of hybrid DMFC/biosensor devices triggered an external electrochromic cell (EC) that produced a colour change. Calibrations showed a concentration-dependent sarcosine response from 3.2 to 2000 µM, which is compatible with the concentration of sarcosine in the blood of prostate cancer patients. The final DMFC/biosensor-EC platform showed a colour change perceptible to the naked eye in the presence of increasing sarcosine concentrations. This colour change was controlled by the DMFC operation, making this approach a self-controlled and self-signalling device. Overall, this approach is a proof-of-concept for a fully autonomous biosensor powered by a chemical fuel. This simple and low-cost approach offers the potential to be deployed anywhere and is particularly suitable for point-of-care (POC) analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
5. Registration and display of the combined bone scan and radiograph in the diagnosis and management of wrist injuries.
- Author
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Hawkes, David, Robinson, Louise, Crossman, John, Sayman, Haluk, Mistry, Ron, Maisey, Michael, and Spencer, John
- Abstract
A system has been developed for the registration and combined display of the X-ray image and isotope bone scan. This system has been evaluated by prospectively studying 23 patients who were referred for suspected injury of the wrist. The registration system has an inherent precision for registration of about 1 mm. When patient positioning errors are included, this increases to about 4 mm. Two observers evaluated the sets of images prior to registration and after registration and combined display. They judged that in 16 out of 17 cases judged abnormal (observer 1) and 12 out of 18 cases judged abnormal (observer 2), the registration technique improved localization of a lesion. One case was rejected as registration was not possible due to incorrect positioning of the hand. [ABSTRACT FROM AUTHOR]
- Published
- 1991
- Full Text
- View/download PDF
6. Zobrazování barev při omezené paletě
- Author
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Žára, Jiří and Skala, Václav
- Subjects
colour display ,barevné spektrum ,colours ,computer graphics ,zobrazování ,imaging ,zobrazení barev ,barvy ,počítačová grafika - Published
- 1992
7. Operační systém pro řízení vestavěných aplikací
- Author
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Šimek, Václav, Strnadel, Josef, Kolarík, Tomáš, Šimek, Václav, Strnadel, Josef, and Kolarík, Tomáš
- Abstract
Práce se zabývá výběrem operačního systému pro vestavěnou řídící jednotku parního sterilizátoru obsluhující barevný displej s dotekovým panelem. Na teoretické úrovni se zabývá architekturou vestavěných systémů a operačních systémů. U nich je pozornost soustředěna na správu procesů. Dále se zabývá přístrojem, pro nějž je vybírán operační systém, důvody pro jeho zavedení, jeho výhodami a nevýhodami v řídícím systému. Pak je součástí práce přehled a rozdělení OS do kategorií podle způsobu použití. A blíže jsou popsány dva open source operační systémy eCos a FreeRTOS. Z nich byl následně kód FreeRTOSe upraven z překladače GCC na překladač IAR. Poslední část práce popisuje architekturu a funkcionalitu vytvořené ukázkové aplikace. Ta pomocí dotekového panelu a barevného displeje umožňuje kreslit barevné nákresy, které se dají pomocí sériové komunikace přenášet do počítače., This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
8. Operační systém pro řízení vestavěných aplikací
- Author
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Šimek, Václav, Strnadel, Josef, Šimek, Václav, and Strnadel, Josef
- Abstract
Práce se zabývá výběrem operačního systému pro vestavěnou řídící jednotku parního sterilizátoru obsluhující barevný displej s dotekovým panelem. Na teoretické úrovni se zabývá architekturou vestavěných systémů a operačních systémů. U nich je pozornost soustředěna na správu procesů. Dále se zabývá přístrojem, pro nějž je vybírán operační systém, důvody pro jeho zavedení, jeho výhodami a nevýhodami v řídícím systému. Pak je součástí práce přehled a rozdělení OS do kategorií podle způsobu použití. A blíže jsou popsány dva open source operační systémy eCos a FreeRTOS. Z nich byl následně kód FreeRTOSe upraven z překladače GCC na překladač IAR. Poslední část práce popisuje architekturu a funkcionalitu vytvořené ukázkové aplikace. Ta pomocí dotekového panelu a barevného displeje umožňuje kreslit barevné nákresy, které se dají pomocí sériové komunikace přenášet do počítače., This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
9. Operační systém pro řízení vestavěných aplikací
- Author
-
Šimek, Václav, Strnadel, Josef, Šimek, Václav, and Strnadel, Josef
- Abstract
Práce se zabývá výběrem operačního systému pro vestavěnou řídící jednotku parního sterilizátoru obsluhující barevný displej s dotekovým panelem. Na teoretické úrovni se zabývá architekturou vestavěných systémů a operačních systémů. U nich je pozornost soustředěna na správu procesů. Dále se zabývá přístrojem, pro nějž je vybírán operační systém, důvody pro jeho zavedení, jeho výhodami a nevýhodami v řídícím systému. Pak je součástí práce přehled a rozdělení OS do kategorií podle způsobu použití. A blíže jsou popsány dva open source operační systémy eCos a FreeRTOS. Z nich byl následně kód FreeRTOSe upraven z překladače GCC na překladač IAR. Poslední část práce popisuje architekturu a funkcionalitu vytvořené ukázkové aplikace. Ta pomocí dotekového panelu a barevného displeje umožňuje kreslit barevné nákresy, které se dají pomocí sériové komunikace přenášet do počítače., This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
10. Operační systém pro řízení vestavěných aplikací
- Author
-
Šimek, Václav, Strnadel, Josef, Šimek, Václav, and Strnadel, Josef
- Abstract
Práce se zabývá výběrem operačního systému pro vestavěnou řídící jednotku parního sterilizátoru obsluhující barevný displej s dotekovým panelem. Na teoretické úrovni se zabývá architekturou vestavěných systémů a operačních systémů. U nich je pozornost soustředěna na správu procesů. Dále se zabývá přístrojem, pro nějž je vybírán operační systém, důvody pro jeho zavedení, jeho výhodami a nevýhodami v řídícím systému. Pak je součástí práce přehled a rozdělení OS do kategorií podle způsobu použití. A blíže jsou popsány dva open source operační systémy eCos a FreeRTOS. Z nich byl následně kód FreeRTOSe upraven z překladače GCC na překladač IAR. Poslední část práce popisuje architekturu a funkcionalitu vytvořené ukázkové aplikace. Ta pomocí dotekového panelu a barevného displeje umožňuje kreslit barevné nákresy, které se dají pomocí sériové komunikace přenášet do počítače., This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
11. Operační systém pro řízení vestavěných aplikací
- Author
-
Šimek, Václav, Strnadel, Josef, Kolarík, Tomáš, Šimek, Václav, Strnadel, Josef, and Kolarík, Tomáš
- Abstract
Práce se zabývá výběrem operačního systému pro vestavěnou řídící jednotku parního sterilizátoru obsluhující barevný displej s dotekovým panelem. Na teoretické úrovni se zabývá architekturou vestavěných systémů a operačních systémů. U nich je pozornost soustředěna na správu procesů. Dále se zabývá přístrojem, pro nějž je vybírán operační systém, důvody pro jeho zavedení, jeho výhodami a nevýhodami v řídícím systému. Pak je součástí práce přehled a rozdělení OS do kategorií podle způsobu použití. A blíže jsou popsány dva open source operační systémy eCos a FreeRTOS. Z nich byl následně kód FreeRTOSe upraven z překladače GCC na překladač IAR. Poslední část práce popisuje architekturu a funkcionalitu vytvořené ukázkové aplikace. Ta pomocí dotekového panelu a barevného displeje umožňuje kreslit barevné nákresy, které se dají pomocí sériové komunikace přenášet do počítače., This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
12. Echolot mit optischer Farbanzeige
- Author
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Klug, H.G.
- Subjects
colour display ,Engineering ,echo sounder ,technology ,Fisheries - Abstract
Johann Heinrich von Thunen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung – Information on Fishery research in 2010
- Published
- 1980
13. Erfahrungen mit einem japanischen Farbbild-Echolotgerät
- Author
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Freytag, G.
- Subjects
colour display ,Engineering ,practical test ,echo-sounder ,Fisheries - Abstract
Johann Heinrich von Thunen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung – Information on Fishery research in 2010
- Published
- 1980
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