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Handl V, Waldherr L, Arbring Sjöström T, Abrahamsson T, Seitanidou M, Erschen S, Gorischek A, Bernacka-Wojcik I, Saarela H, Tomin T, Honeder SE, Distl J, Huber W, Asslaber M, Birner-Grünberger R, Schäfer U, Berggren M, Schindl R, Patz S, Simon DT, Ghaffari-Tabrizi-Wizsy N. Continuous iontronic chemotherapy reduces brain tumor growth in embryonic avian in vivo models. J Control Release 2024; 369:668-683. [PMID: 38548064 DOI: 10.1016/j.jconrel.2024.03.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024]
Abstract
Local and long-lasting administration of potent chemotherapeutics is a promising therapeutic intervention to increase the efficiency of chemotherapy of hard-to-treat tumors such as the most lethal brain tumors, glioblastomas (GBM). However, despite high toxicity for GBM cells, potent chemotherapeutics such as gemcitabine (Gem) cannot be widely implemented as they do not efficiently cross the blood brain barrier (BBB). As an alternative method for continuous administration of Gem, we here operate freestanding iontronic pumps - "GemIPs" - equipped with a custom-synthesized ion exchange membrane (IEM) to treat a GBM tumor in an avian embryonic in vivo system. We compare GemIP treatment effects with a topical metronomic treatment and observe that a remarkable growth inhibition was only achieved with steady dosing via GemIPs. Daily topical drug administration (at the maximum dosage that was not lethal for the embryonic host organism) did not decrease tumor sizes, while both treatment regimes caused S-phase cell cycle arrest and apoptosis. We hypothesize that the pharmacodynamic effects generate different intratumoral drug concentration profiles for each technique, which causes this difference in outcome. We created a digital model of the experiment, which proposes a fast decay in the local drug concentration for the topical daily treatment, but a long-lasting high local concentration of Gem close to the tumor area with GemIPs. Continuous chemotherapy with iontronic devices opens new possibilities in cancer treatment: the long-lasting and highly local dosing of clinically available, potent chemotherapeutics to greatly enhance treatment efficiency without systemic side-effects. SIGNIFICANCE STATEMENT: Iontronic pumps (GemIPs) provide continuous and localized administration of the chemotherapeutic gemcitabine (Gem) for treating glioblastoma in vivo. By generating high and constant drug concentrations near the vascularized growing tumor, GemIPs offer an efficient and less harmful alternative to systemic administration. Continuous GemIP dosing resulted in remarkable growth inhibition, superior to daily topical Gem application at higher doses. Our digital modelling shows the advantages of iontronic chemotherapy in overcoming limitations of burst release and transient concentration profiles, and providing precise control over dosing profiles and local distribution. This technology holds promise for future implants, could revolutionize treatment strategies, and offers a new platform for studying the influence of timing and dosing dependencies of already-established drugs in the fight against hard-to-treat tumors.
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Affiliation(s)
- Verena Handl
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria
| | - Linda Waldherr
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria; BioTechMed-Graz, Austria, Auenbruggerplatz 30, 8036 Graz, Austria
| | - Theresia Arbring Sjöström
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Tobias Abrahamsson
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Maria Seitanidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Sabine Erschen
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria
| | - Astrid Gorischek
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria
| | - Iwona Bernacka-Wojcik
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Helena Saarela
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Tamara Tomin
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria
| | - Sophie Elisabeth Honeder
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria
| | - Joachim Distl
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria
| | - Waltraud Huber
- Otto Loewi Research Center, Division of Immunology, Research Unit CAM Lab, Medical University of Graz, 8010 Graz, Austria
| | - Martin Asslaber
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria
| | - Ruth Birner-Grünberger
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria
| | - Ute Schäfer
- Research Unit for Experimental Neurotraumatology, Medical University of Graz, 8010 Graz, Austria
| | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Rainer Schindl
- Gottfried Schatz Research Center - Medical Physics and Biophysics, Medical University of Graz, 8010 Graz, Austria; BioTechMed-Graz, Austria, Auenbruggerplatz 30, 8036 Graz, Austria.
| | - Silke Patz
- Research Unit for Experimental Neurotraumatology, Medical University of Graz, 8010 Graz, Austria.
| | - Daniel T Simon
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden.
| | - Nassim Ghaffari-Tabrizi-Wizsy
- Otto Loewi Research Center, Division of Immunology, Research Unit CAM Lab, Medical University of Graz, 8010 Graz, Austria.
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Bernacka-Wojcik I, Talide L, Abdel Aziz I, Simura J, Oikonomou VK, Rossi S, Mohammadi M, Dar AM, Seitanidou M, Berggren M, Simon DT, Tybrandt K, Jonsson MP, Ljung K, Niittylä T, Stavrinidou E. Flexible Organic Electronic Ion Pump for Flow-Free Phytohormone Delivery into Vasculature of Intact Plants. Adv Sci (Weinh) 2023; 10:e2206409. [PMID: 36935365 DOI: 10.1002/advs.202206409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/03/2023] [Indexed: 05/18/2023]
Abstract
Plant vasculature transports molecules that play a crucial role in plant signaling including systemic responses and acclimation to diverse environmental conditions. Targeted controlled delivery of molecules to the vascular tissue can be a biomimetic way to induce long distance responses, providing a new tool for the fundamental studies and engineering of stress-tolerant plants. Here, a flexible organic electronic ion pump, an electrophoretic delivery device, for controlled delivery of phytohormones directly in plant vascular tissue is developed. The c-OEIP is based on polyimide-coated glass capillaries that significantly enhance the mechanical robustness of these microscale devices while being minimally disruptive for the plant. The polyelectrolyte channel is based on low-cost and commercially available precursors that can be photocured with blue light, establishing much cheaper and safer system than the state-of-the-art. To trigger OEIP-induced plant response, the phytohormone abscisic acid (ABA) in the petiole of intact Arabidopsis plants is delivered. ABA is one of the main phytohormones involved in plant stress responses and induces stomata closure under drought conditions to reduce water loss and prevent wilting. The OEIP-mediated ABA delivery triggered fast and long-lasting stomata closure far away from the delivery point demonstrating systemic vascular transport of the delivered ABA, verified delivering deuterium-labeled ABA.
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Affiliation(s)
- Iwona Bernacka-Wojcik
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Loïc Talide
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Ilaria Abdel Aziz
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Jan Simura
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Vasileios K Oikonomou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Stefano Rossi
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Mohsen Mohammadi
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Abdul Manan Dar
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Maria Seitanidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Daniel T Simon
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
| | - Klas Tybrandt
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Magnus P Jonsson
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Karin Ljung
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Totte Niittylä
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Eleni Stavrinidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-601 74, Sweden
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
- Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
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Grenzi M, Buratti S, Parmagnani AS, Abdel Aziz I, Bernacka-Wojcik I, Resentini F, Šimura J, Doccula FG, Alfieri A, Luoni L, Ljung K, Bonza MC, Stavrinidou E, Costa A. Long-distance turgor pressure changes induce local activation of plant glutamate receptor-like channels. Curr Biol 2023; 33:1019-1035.e8. [PMID: 36796359 DOI: 10.1016/j.cub.2023.01.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/17/2022] [Accepted: 01/20/2023] [Indexed: 02/18/2023]
Abstract
In Arabidopsis thaliana, local wounding and herbivore feeding provoke leaf-to-leaf propagating Ca2+ waves that are dependent on the activity of members of the glutamate receptor-like channels (GLRs). In systemic tissues, GLRs are needed to sustain the synthesis of jasmonic acid (JA) with the subsequent activation of JA-dependent signaling response required for the plant acclimation to the perceived stress. Even though the role of GLRs is well established, the mechanism through which they are activated remains unclear. Here, we report that in vivo, the amino-acid-dependent activation of the AtGLR3.3 channel and systemic responses require a functional ligand-binding domain. By combining imaging and genetics, we show that leaf mechanical injury, such as wounds and burns, as well as hypo-osmotic stress in root cells, induces the systemic apoplastic increase of L-glutamate (L-Glu), which is largely independent of AtGLR3.3 that is instead required for systemic cytosolic Ca2+ elevation. Moreover, by using a bioelectronic approach, we show that the local release of minute concentrations of L-Glu in the leaf lamina fails to induce any long-distance Ca2+ waves.
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Affiliation(s)
- Matteo Grenzi
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy
| | - Stefano Buratti
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy
| | | | - Ilaria Abdel Aziz
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Sweden
| | - Iwona Bernacka-Wojcik
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Sweden
| | - Francesca Resentini
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy
| | - Jan Šimura
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
| | | | - Andrea Alfieri
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy; Centro Grandi Strumenti, University of Pavia, via Ferrata 9, 27100 Pavia, Italy
| | - Laura Luoni
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy
| | - Karin Ljung
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
| | - Maria Cristina Bonza
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy
| | - Eleni Stavrinidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Sweden; Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden; Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, Norrköping, Sweden
| | - Alex Costa
- Department of Biosciences, University of Milan, via Celoria 26, 20133 Milano, Italy; Institute of Biophysics, National Research Council of Italy (CNR), 20133 Milano, Italy.
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Dufil G, Bernacka-Wojcik I, Armada-Moreira A, Stavrinidou E. Plant Bioelectronics and Biohybrids: The Growing Contribution of Organic Electronic and Carbon-Based Materials. Chem Rev 2021; 122:4847-4883. [PMID: 34928592 PMCID: PMC8874897 DOI: 10.1021/acs.chemrev.1c00525] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Life in our planet is highly dependent on plants as they are the primary source of food, regulators of the atmosphere, and providers of a variety of materials. In this work, we review the progress on bioelectronic devices for plants and biohybrid systems based on plants, therefore discussing advancements that view plants either from a biological or a technological perspective, respectively. We give an overview on wearable and implantable bioelectronic devices for monitoring and modulating plant physiology that can be used as tools in basic plant science or find application in agriculture. Furthermore, we discuss plant-wearable devices for monitoring a plant's microenvironment that will enable optimization of growth conditions. The review then covers plant biohybrid systems where plants are an integral part of devices or are converted to devices upon functionalization with smart materials, including self-organized electronics, plant nanobionics, and energy applications. The review focuses on advancements based on organic electronic and carbon-based materials and discusses opportunities, challenges, as well as future steps.
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Affiliation(s)
- Gwennaël Dufil
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden
| | - Iwona Bernacka-Wojcik
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden
| | - Adam Armada-Moreira
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden
| | - Eleni Stavrinidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden.,Wallenberg Wood Science Center, Department of Science and Technology, Linköping University, SE-60174 Norrköping, Sweden.,Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Campus Umeå, SE-901 83 Umeå, Sweden
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5
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Bernacka-Wojcik I, Huerta M, Tybrandt K, Karady M, Mulla MY, Poxson DJ, Gabrielsson EO, Ljung K, Simon DT, Berggren M, Stavrinidou E. Implantable Organic Electronic Ion Pump Enables ABA Hormone Delivery for Control of Stomata in an Intact Tobacco Plant. Small 2019; 15:e1902189. [PMID: 31513355 DOI: 10.1002/smll.201902189] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/02/2019] [Indexed: 06/10/2023]
Abstract
Electronic control of biological processes with bioelectronic devices holds promise for sophisticated regulation of physiology, for gaining fundamental understanding of biological systems, providing new therapeutic solutions, and digitally mediating adaptations of organisms to external factors. The organic electronic ion pump (OEIP) provides a unique means for electronically-controlled, flow-free delivery of ions, and biomolecules at cellular scale. Here, a miniaturized OEIP device based on glass capillary fibers (c-OEIP) is implanted in a biological organism. The capillary form factor at the sub-100 µm scale of the device enables it to be implanted in soft tissue, while its hyperbranched polyelectrolyte channel and addressing protocol allows efficient delivery of a large aromatic molecule. In the first example of an implantable bioelectronic device in plants, the c-OEIP readily penetrates the leaf of an intact tobacco plant with no significant wound response (evaluated up to 24 h) and effectively delivers the hormone abscisic acid (ABA) into the leaf apoplast. OEIP-mediated delivery of ABA, the phytohormone that regulates plant's tolerance to stress, induces closure of stomata, the microscopic pores in leaf's epidermis that play a vital role in photosynthesis and transpiration. Efficient and localized ABA delivery reveals previously unreported kinetics of ABA-induced signal propagation.
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Affiliation(s)
- Iwona Bernacka-Wojcik
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Miriam Huerta
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Klas Tybrandt
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Michal Karady
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Mohammad Yusuf Mulla
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - David J Poxson
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Erik O Gabrielsson
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Karin Ljung
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Daniel T Simon
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Magnus Berggren
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
| | - Eleni Stavrinidou
- Laboratory of Organic Electronics Department of Science and Technology, Linköping University, SE-601 74, Norrkoping, Sweden
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Alves PU, Vinhas R, Fernandes AR, Birol SZ, Trabzon L, Bernacka-Wojcik I, Igreja R, Lopes P, Baptista PV, Águas H, Fortunato E, Martins R. Multifunctional microfluidic chip for optical nanoprobe based RNA detection - application to Chronic Myeloid Leukemia. Sci Rep 2018; 8:381. [PMID: 29321602 PMCID: PMC5762653 DOI: 10.1038/s41598-017-18725-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 11/13/2017] [Indexed: 11/24/2022] Open
Abstract
Many diseases have their treatment options narrowed and end up being fatal if detected during later stages. As a consequence, point-of-care devices have an increasing importance for routine screening applications in the health sector due to their portability, fast analyses and decreased cost. For that purpose, a multifunctional chip was developed and tested using gold nanoprobes to perform RNA optical detection inside a microfluidic chip without the need of molecular amplification steps. As a proof-of-concept, this device was used for the rapid detection of chronic myeloid leukemia, a hemato-oncological disease that would benefit from early stage diagnostics and screening tests. The chip passively mixed target RNA from samples, gold nanoprobes and saline solution to infer a result from their final colorimetric properties. An optical fiber network was used to evaluate its transmitted spectra inside the chip. Trials provided accurate output results within 3 min, yielding signal-to-noise ratios up to 9 dB. When compared to actual state-of-art screening techniques of chronic myeloid leukemia, these results were, at microscale, at least 10 times faster than the reported detection methods for chronic myeloid leukemia. Concerning point-of-care applications, this work paves the way for other new and more complex versions of optical based genosensors.
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Affiliation(s)
- Pedro Urbano Alves
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Raquel Vinhas
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Semra Zuhal Birol
- MEMS, Department of Nanoscience and Nanoengineering, Istanbul Technical University, Ayazaga Campus, 34469, Maslak, Turkey
| | - Levent Trabzon
- MEMS, Department of Nanoscience and Nanoengineering, Istanbul Technical University, Ayazaga Campus, 34469, Maslak, Turkey
| | - Iwona Bernacka-Wojcik
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74, Norrköping, Sweden
| | - Rui Igreja
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Paulo Lopes
- Department of Physics and IEETA (Institute of Electronics and Informatics Engineering of Aveiro), Campus Santiago, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Pedro Viana Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516, Caparica, Portugal.
| | - Hugo Águas
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal.
| | - Elvira Fortunato
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Rodrigo Martins
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
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Bernacka-Wojcik I, Wojcik P, Aguas H, Fortunato E, Martins R. Inkjet printed highly porous TiO 2 films for improved electrical properties of photoanode. J Colloid Interface Sci 2016; 465:208-14. [DOI: 10.1016/j.jcis.2015.11.070] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 11/25/2015] [Accepted: 11/28/2015] [Indexed: 11/25/2022]
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Bernacka-Wojcik I, Águas H, Carlos FF, Lopes P, Wojcik PJ, Costa MN, Veigas B, Igreja R, Fortunato E, Baptista PV, Martins R. Single nucleotide polymorphism detection using gold nanoprobes and bio-microfluidic platform with embedded microlenses. Biotechnol Bioeng 2015; 112:1210-9. [PMID: 25765286 DOI: 10.1002/bit.25542] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The use of microfluidics platforms combined with the optimal optical properties of gold nanoparticles has found plenty of application in molecular biosensing. This paper describes a bio-microfluidic platform coupled to a non-cross-linking colorimetric gold nanoprobe assay to detect a single nucleotide polymorphism associated with increased risk of obesity fat-mass and obesity-associated (FTO) rs9939609 (Carlos et al., 2014). The system enabled significant discrimination between positive and negative assays using a target DNA concentration of 5 ng/µL below the limit of detection of the conventionally used microplate reader (i.e., 15 ng/µL) with 10 times lower solution volume (i.e., 3 µL). A set of optimization of our previously reported bio-microfluidic platform (Bernacka-Wojcik et al., 2013) resulted in a 160% improvement of colorimetric analysis results. Incorporation of planar microlenses increased 6 times signal-to-loss ratio reaching the output optical fiber improving by 34% the colorimetric analysis of gold nanoparticles, while the implementation of an optoelectronic acquisition system yielded increased accuracy and reduced noise. The microfluidic chip was also integrated with a miniature fiber spectrometer to analyze the assays' colorimetric changes and also the LEDs transmission spectra when illuminating through various solutions. Furthermore, by coupling an optical microscope to a digital camera with a long exposure time (30 s), we could visualise the different scatter intensities of gold nanoparticles within channels following salt addition. These intensities correlate well to the expected difference in aggregation between FTO positive (none to small aggregates) and negative samples (large aggregates).
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Affiliation(s)
- Iwona Bernacka-Wojcik
- Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, CENIMAT/I3N, Caparica, 2829-516, Portugal.
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Bernacka-Wojcik I, Ribeiro S, Wojcik PJ, Alves PU, Busani T, Fortunato E, Baptista PV, Covas JA, Águas H, Hilliou L, Martins R. Experimental optimization of a passive planar rhombic micromixer with obstacles for effective mixing in a short channel length. RSC Adv 2014. [DOI: 10.1039/c4ra10160j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A short passive planar micromixer was experimentally optimised using statistical methods to determine parameter significance and most desirable geometry.
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Affiliation(s)
- Iwona Bernacka-Wojcik
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Susana Ribeiro
- IPC/I3N
- Dept. Polymer Engineering
- Universidade do Minho
- Campus de Azurém
- 4800-058 Guimarães, Portugal
| | - Pawel Jerzy Wojcik
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Pedro Urbano Alves
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Tito Busani
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Elvira Fortunato
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Pedro Viana Baptista
- CIGMH
- Departamento de Ciências da Vida
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica, Portugal
| | - José António Covas
- IPC/I3N
- Dept. Polymer Engineering
- Universidade do Minho
- Campus de Azurém
- 4800-058 Guimarães, Portugal
| | - Hugo Águas
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
| | - Loic Hilliou
- IPC/I3N
- Dept. Polymer Engineering
- Universidade do Minho
- Campus de Azurém
- 4800-058 Guimarães, Portugal
| | - Rodrigo Martins
- CENIMAT/I3N
- Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa and CEMOP-UNINOVA
- 2829-516 Caparica, Portugal
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Bernacka-Wojcik I, Lopes P, Catarina Vaz A, Veigas B, Jerzy Wojcik P, Simões P, Barata D, Fortunato E, Viana Baptista P, Águas H, Martins R. Bio-microfluidic platform for gold nanoprobe based DNA detection—application to Mycobacterium tuberculosis. Biosens Bioelectron 2013; 48:87-93. [DOI: 10.1016/j.bios.2013.03.079] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 03/25/2013] [Accepted: 03/30/2013] [Indexed: 01/08/2023]
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Aguas H, Filonovich SA, Bernacka-Wojcik I, Fortunato E, Martins R. Role of trimethylboron to silane ratio on the properties of p-type nanocrystalline silicon thin film deposited by radio frequency plasma enhanced chemical vapour deposition. J Nanosci Nanotechnol 2010; 10:2547-2551. [PMID: 20355460 DOI: 10.1166/jnn.2010.1434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Trimethylboron (TMB) has been receiving attention as a valid alternative to diborane and methane mixtures for the deposition of p-type silicon films for applications in optoelectronic devices such as solar cells. In this paper we report on p-type hydrogenated nanocrystalline silicon carbide (nc-Si:C:H) films produced by standard 13.56 MHz plasma enhanced chemical vapour deposition technique, using TMB as gas source, under high hydrogen dilution (98%) and using high deposition pressures (3 Torr). The films obtained were characterized by spectroscopic ellipsometry (SE), Raman spectroscopy (RS), and electrical measurements to determine their optical, structural and electrical properties. We achieved conductivities as high as 8.3 (omega cm)(-1), one of the highest values of conductivity published to date using TMB with standard rf-PECVD. Spectroscopic ellipsometry modeling revealed that the films growth mechanism proceeds through a sub-surface layer mechanism that leads to the formation of nanocrystalline silicon.
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Affiliation(s)
- H Aguas
- Departamento de Ciência dos Materiais, FCT-UNL, Cenimat-13N, Campus de Caparica, 2829-516 Caparica, Portugal
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Bernacka-Wojcik I, Senadeera R, Wojcik PJ, Silva LB, Doria G, Baptista P, Aguas H, Fortunato E, Martins R. Inkjet printed and “doctor blade” TiO2 photodetectors for DNA biosensors. Biosens Bioelectron 2010; 25:1229-34. [DOI: 10.1016/j.bios.2009.09.027] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Revised: 09/07/2009] [Accepted: 09/21/2009] [Indexed: 10/20/2022]
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