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Lee J, Purushothaman B, Song JM. Inkjet Bioprinting on Parchment Paper for Hit Identification from Small Molecule Libraries. ACS OMEGA 2020; 5:588-596. [PMID: 31956806 PMCID: PMC6964283 DOI: 10.1021/acsomega.9b03169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
In this study, an inkjet bioprinting-based high-throughput screening (HTS) system was designed and applied for the first time to a catecholpyrimidine-based small molecule library to find hit compounds that inhibit c-Jun NH2-terminal kinase1 (JNK1). JNK1 kinase, inactivated MAPKAPK2, and specific fluorescent peptides along with bioink were printed on parchment paper under optimized printing conditions that did not allow rapid evaporation of printed media based on Triton-X and glycerol. Subsequently, different small compounds were printed and tested against JNK1 kinase to evaluate their degree of phosphorylation inhibition. After printing and incubation, fluorescence intensities from the phosphorylated/nonphosphorylated peptide were acquired for the % phosphorylation analysis. The IM50 (inhibitory mole 50) value was determined as 1.55 × 10-15 mol for the hit compound, 22. Thus, this work demonstrated that inkjet bioprinting-based HTS can potentially be adopted for the drug discovery process using small molecule libraries, and cost-effective HTS can be expected to be established based on its low nano- to picoliter printing volume.
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Abstract
Wearable technology has attracted significant public attention and has generated huge societal and economic impact, leading to changes of both personal lifestyles and formats of healthcare. An important type of devices in wearable technology is flexible and stretchable skin sensors used primarily for biophysiological signal sensing and biomolecule analysis on skin. These sensors offer mechanical compatibility to human skin and maximum compliance to skin morphology and motion, demonstrating great potential as promising alternatives to current wearable electronic devices based on rigid substrates and packages. The mechanisms behind the design and applications of these sensors are numerous, involving profound knowledge about the physical and chemical properties of the sensors and the skin. The corresponding materials are diverse, featuring thin elastic films and unique stretchable structures based on traditional hard or ductile materials. In addition, the fabrication techniques that range from complementary metal-oxide semiconductor (CMOS) fabrication to innovative additive manufacturing have led to various sensor formats. This paper reviews mechanisms, materials, fabrication techniques, and representative applications of flexible and stretchable skin sensors, and provides perspective of future trends of the sensors in improving biomedical sensing, human machine interfacing, and quality of life.
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Pokrzywnicka M, Koncki R, Tymecki Ł. Towards optoelectronic urea biosensors. Anal Bioanal Chem 2015; 407:1807-12. [PMID: 25619983 PMCID: PMC4336418 DOI: 10.1007/s00216-014-8434-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/14/2014] [Accepted: 12/18/2014] [Indexed: 12/01/2022]
Abstract
Integration of immobilized enzymes with light-emitting diodes (LEDs) leads to the development of optoelectronic enzyme-based biosensors. In this work, urease, used as a model enzyme, immobilized in the form of an open-tubular microbioreactor or biosensing membrane that has been integrated with two red LEDs. It forms complete, fiberless, miniaturized, and extremely economic biooptoelectronic devices useful for nonstationary measurements under flow analysis conditions. Both enzyme-based biodevices, operating according to the paired emitter detector diode (PEDD) principle, allow relatively fast, highly sensitive, and well-reproducible urea detection in the millimolar range of concentrations. Potential analytical applications of the developed urea bioPEDDs have been announced. Both presented constructions will be easily adapted for the development of other optoelectronic biosensors exploring various enzyme-based schemes of biodetection.
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Affiliation(s)
- Marta Pokrzywnicka
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
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Inkjet printed (bio)chemical sensing devices. Anal Bioanal Chem 2013; 405:5785-805. [DOI: 10.1007/s00216-013-7013-z] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/19/2013] [Accepted: 04/23/2013] [Indexed: 10/26/2022]
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Czugala M, Gorkin R, Phelan T, Gaughran J, Curto VF, Ducrée J, Diamond D, Benito-Lopez F. Optical sensing system based on wireless paired emitter detector diode device and ionogels for lab-on-a-disc water quality analysis. LAB ON A CHIP 2012; 12:5069-5078. [PMID: 23070147 DOI: 10.1039/c2lc40781g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work describes the first use of a wireless paired emitter detector diode device (PEDD) as an optical sensor for water quality monitoring in a lab-on-a-disc device. The microfluidic platform, based on an ionogel sensing area combined with a low-cost optical sensor, is applied for quantitative pH and qualitative turbidity monitoring of water samples at point-of-need. The autonomous capabilities of the PEDD system, combined with the portability and wireless communication of the full device, provide the flexibility needed for on-site water testing. Water samples from local fresh and brackish sources were successfully analysed using the device, showing very good correlation with standard bench-top systems.
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Affiliation(s)
- Monika Czugala
- CLARITY: Centre for Sensor Web Technology, National Centre for Sensor Research, Dublin City University, Dublin, Ireland
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LED–LED portable oxygen gas sensor. Anal Bioanal Chem 2012; 404:2851-8. [DOI: 10.1007/s00216-012-6307-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 06/19/2012] [Accepted: 07/27/2012] [Indexed: 10/28/2022]
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Cocovi-Solberg DJ, Miró M, Cerdà V, Pokrzywnicka M, Tymecki Ł, Koncki R. Towards the development of a miniaturized fiberless optofluidic biosensor for glucose. Talanta 2012; 96:113-20. [DOI: 10.1016/j.talanta.2011.11.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 10/31/2011] [Accepted: 11/04/2011] [Indexed: 10/15/2022]
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Bonastre A, Capella J, Ors R, Peris M. In-line monitoring of chemical-analysis processes using Wireless Sensor Networks. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Kavanagh A, Byrne R, Diamond D, Fraser KJ. Stimuli responsive ionogels for sensing applications-an overview. MEMBRANES 2012; 2:16-39. [PMID: 24957961 PMCID: PMC4021881 DOI: 10.3390/membranes2010016] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 01/23/2012] [Accepted: 02/02/2012] [Indexed: 11/16/2022]
Abstract
This overview aims to summarize the existing potential of "Ionogels" as a platform to develop stimuli responsive materials. Ionogels are a class of materials that contain an Ionic Liquid (IL) confined within a polymer matrix. Recently defined as "a solid interconnected network spreading throughout a liquid phase", the ionogel therefore combines the properties of both its solid and liquid components. ILs are low melting salts that exist as liquids composed entirely of cations and anions at or around 100 °C. Important physical properties of these liquids such as viscosity, density, melting point and conductivity can be altered to suit a purpose by choice of the cation/anion. Here we provide an overview to highlight the literature thus far, detailing the encapsulation of IL and responsive materials within these polymeric structures. Exciting applications in the areas of optical and electrochemical sensing, solid state electrolytes and actuating materials shall be discussed.
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Affiliation(s)
- Andrew Kavanagh
- CLARITY-The Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
| | - Robert Byrne
- CLARITY-The Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
| | - Dermot Diamond
- CLARITY-The Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
| | - Kevin J Fraser
- CLARITY-The Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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A new light emitting diode–light emitting diode portable carbon dioxide gas sensor based on an interchangeable membrane system for industrial applications. Anal Chim Acta 2011; 699:216-22. [DOI: 10.1016/j.aca.2011.05.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 04/27/2011] [Accepted: 05/12/2011] [Indexed: 11/15/2022]
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Recent developments in handheld and portable optosensing—A review. Anal Chim Acta 2011; 696:27-46. [DOI: 10.1016/j.aca.2011.04.005] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 04/08/2011] [Accepted: 04/10/2011] [Indexed: 12/12/2022]
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Tymecki Ł, Pokrzywnicka M, Koncki R. Fluorometric paired emitter detector diode (FPEDD). Analyst 2011; 136:73-6. [DOI: 10.1039/c0an00227e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Miniaturized optical chemosensor for flow-based assays. Anal Bioanal Chem 2010; 399:1381-7. [PMID: 21103867 PMCID: PMC3018244 DOI: 10.1007/s00216-010-4384-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 10/22/2010] [Accepted: 10/24/2010] [Indexed: 11/11/2022]
Abstract
A cost-effective, highly compact, and versatile optoelectronic device constructed of two ordinary light emitting diodes compatible with optosensing films has been developed. This fibreless device containing chemoreceptor, semiconductor light source, and detector integrated in a miniaturized flow-through cell of low microliter internal volume works as a complete photometric chemical sensor suitable for detection in flow analysis. The operation of the developed device under nonstationary programmable-flow conditions offered by sequential injection analysis has been demonstrated using Prussian Blue film as a model optical chemoreceptor. The unique spectroelectrochemical properties of the sensing material enable its use for optical sensing of redox species, whereby ascorbic acid and hydrogen peroxide have been chosen as model analytes. The reported SI-sensor system features fast and reproducible determination of both analytes in the submillimolar range of concentrations. The construction concept demonstrated in this work can be easily applied to other kinds of optical sensors based on absorbance sensing films.
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Im J, Sengupta SK, Whitten JE. Photometer for monitoring the thickness of inkjet printed films for organic electronic and sensor applications. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:034103. [PMID: 20370198 DOI: 10.1063/1.3368638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Inkjet printed organic thin films are being used for a variety of electronic and sensor applications with advantages that include ease of fabrication and reproducibility. Construction and use of a low-cost photometer based on a light-emitting diode (LED) light source and a photodiode detector are described. The photometer attaches to the exit of the printer with the transparent substrate onto which the film is printed passing between the LED and photodiode. By measuring the output voltage of the detector, the transmittance and absorbance of the inkjet printed film can be calculated in real-time. Since absorbance is linearly proportional to thickness in the Beer-Lambert regime, the thickness of the film may be monitored and controlled by varying the number of passes through the printer. Use of the photometer is demonstrated for inkjet printed films of monolayer-protected colloidal gold nanoparticles that function as chemical vapor sensors. The photometer may find applications in both research and quality control related to the manufacture of organic electronic devices and sensors and enables "feedback-controlled" inkjet printing.
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Affiliation(s)
- Jisun Im
- Department of Chemistry and Center for High-Rate Nanomanufacturing, The University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
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Color regeneration from reflective color sensor using an artificial intelligent technique. SENSORS 2010; 10:8363-74. [PMID: 22163659 PMCID: PMC3231199 DOI: 10.3390/s100908363] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 08/10/2010] [Accepted: 08/20/2010] [Indexed: 11/17/2022]
Abstract
A low-cost optical sensor based on reflective color sensing is presented. Artificial neural network models are used to improve the color regeneration from the sensor signals. Analog voltages of the sensor are successfully converted to RGB colors. The artificial intelligent models presented in this work enable color regeneration from analog outputs of the color sensor. Besides, inverse modeling supported by an intelligent technique enables the sensor probe for use of a colorimetric sensor that relates color changes to analog voltages.
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