1
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Tomagra G, Re A, Varzi V, Aprà P, Britel A, Franchino C, Sturari S, Amine NH, Westerink RHS, Carabelli V, Picollo F. Enhancing the Study of Quantal Exocytotic Events: Combining Diamond Multi-Electrode Arrays with Amperometric PEak Analysis (APE) an Automated Analysis Code. BIOSENSORS 2023; 13:1033. [PMID: 38131793 PMCID: PMC10741388 DOI: 10.3390/bios13121033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
MicroGraphited-Diamond-Multi Electrode Arrays (μG-D-MEAs) can be successfully used to reveal, in real time, quantal exocytotic events occurring from many individual neurosecretory cells and/or from many neurons within a network. As μG-D-MEAs arrays are patterned with up to 16 sensing microelectrodes, each of them recording large amounts of data revealing the exocytotic activity, the aim of this work was to support an adequate analysis code to speed up the signal detection. The cutting-edge technology of microGraphited-Diamond-Multi Electrode Arrays (μG-D-MEAs) has been implemented with an automated analysis code (APE, Amperometric Peak Analysis) developed using Matlab R2022a software to provide easy and accurate detection of amperometric spike parameters, including the analysis of the pre-spike foot that sometimes precedes the complete fusion pore dilatation. Data have been acquired from cultured PC12 cells, either collecting events during spontaneous exocytosis or after L-DOPA incubation. Validation of the APE code was performed by comparing the acquired spike parameters with those obtained using Quanta Analysis (Igor macro) by Mosharov et al.
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Affiliation(s)
- Giulia Tomagra
- Department of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy; (G.T.); (C.F.); (V.C.)
| | - Alice Re
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Veronica Varzi
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Pietro Aprà
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Adam Britel
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Claudio Franchino
- Department of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy; (G.T.); (C.F.); (V.C.)
| | - Sofia Sturari
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Nour-Hanne Amine
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
| | - Remco H. S. Westerink
- Neurotoxicology Research Group, Division of Toxicology, Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands;
| | - Valentina Carabelli
- Department of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy; (G.T.); (C.F.); (V.C.)
| | - Federico Picollo
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, Via Giuria 1, 10125 Torino, Italy (P.A.); (A.B.); (S.S.); (N.-H.A.); (F.P.)
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2
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Tomagra G, Franchino C, Carbone E, Marcantoni A, Pasquarelli A, Picollo F, Carabelli V. Methodologies for Detecting Quantal Exocytosis in Adrenal Chromaffin Cells Through Diamond-Based MEAs. Methods Mol Biol 2023; 2565:213-221. [PMID: 36205897 DOI: 10.1007/978-1-0716-2671-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Diamond-based multiarray sensors are suitable to detect in real-time exocytosis and action potentials from cultured, spontaneously firing chromaffin cells, primary hippocampal neurons, and midbrain dopaminergic neurons. Here, we focus on how amperometric measurements of catecholamine release are performed on micrographitic diamond multiarrays (μG-D-MEAs) with high temporal and spatial resolution by 16 electrodes simultaneously.
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Affiliation(s)
- Giulia Tomagra
- Department of Drug Science and Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy.
| | - Claudio Franchino
- Department of Drug Science and Technology, University of Torino, Turin, Italy
| | - Emilio Carbone
- Department of Drug Science and Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
| | - Andrea Marcantoni
- Department of Drug Science and Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
| | | | - Federico Picollo
- Department of Physics and "NIS" Inter-departmental Centre, University of Torino, Istituto Nazionale di Fisica Nucleare - Sezione di Torino, Turin, Italy
| | - Valentina Carabelli
- Department of Drug Science and Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
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3
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Tomagra G, Peroni G, Aprà P, Bonino V, Campostrini M, Carabelli V, Ruvolo CC, Lo Giudice A, Guidorzi L, Mino L, Olivero P, Pacher L, Picariello F, Re A, Rigato V, Truccato M, Varzi V, Vittone E, Picollo F. Diamond-based sensors for in vitro cellular radiobiology: Simultaneous detection of cell exocytic activity and ionizing radiation. Biosens Bioelectron 2022; 220:114876. [DOI: 10.1016/j.bios.2022.114876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/20/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
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4
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Kuhn B, Picollo F, Carabelli V, Rispoli G. Advanced real-time recordings of neuronal activity with tailored patch pipettes, diamond multi-electrode arrays and electrochromic voltage-sensitive dyes. Pflugers Arch 2020; 473:15-36. [PMID: 33047171 PMCID: PMC7782438 DOI: 10.1007/s00424-020-02472-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/03/2022]
Abstract
To understand the working principles of the nervous system is key to figure out its electrical activity and how this activity spreads along the neuronal network. It is therefore crucial to develop advanced techniques aimed to record in real time the electrical activity, from compartments of single neurons to populations of neurons, to understand how higher functions emerge from coordinated activity. To record from single neurons, a technique will be presented to fabricate patch pipettes able to seal on any membrane with a single glass type and whose shanks can be widened as desired. This dramatically reduces access resistance during whole-cell recording allowing fast intracellular and, if required, extracellular perfusion. To simultaneously record from many neurons, biocompatible probes will be described employing multi-electrodes made with novel technologies, based on diamond substrates. These probes also allow to synchronously record exocytosis and neuronal excitability and to stimulate neurons. Finally, to achieve even higher spatial resolution, it will be shown how voltage imaging, employing fast voltage-sensitive dyes and two-photon microscopy, is able to sample voltage oscillations in the brain spatially resolved and voltage changes in dendrites of single neurons at millisecond and micrometre resolution in awake animals.
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Affiliation(s)
- Bernd Kuhn
- Optical Neuroimaging Unit, OIST Graduate University, 1919-1 Tancha, Onna-son, Okinawa, Japan
| | - Federico Picollo
- Department of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, via Giuria 1, 10125, Torino, Italy
| | - Valentina Carabelli
- Department of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125, Torino, Italy
| | - Giorgio Rispoli
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy.
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5
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Picollo F, Tomagra G, Bonino V, Carabelli V, Mino L, Olivero P, Pasquarelli A, Truccato M. Triggering Neurotransmitters Secretion from Single Cells by X-ray Nanobeam Irradiation. NANO LETTERS 2020; 20:3889-3894. [PMID: 32227961 PMCID: PMC7997629 DOI: 10.1021/acs.nanolett.0c01046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The employment of ionizing radiation is a powerful tool in cancer therapy, but beyond targeted effects, many studies have highlighted the relevance of its off-target consequences. An exhaustive understanding of the mechanisms underlying these effects is still missing, and no real-time data about signals released by cells during irradiation are presently available. We employed a synchrotron X-ray nanobeam to perform the first real-time simultaneous measurement of both X-ray irradiation and in vitro neurotransmitter release from individual adrenal phaeochromocytoma (PC12) cells plated over a diamond-based multielectrode array. We have demonstrated that, in specific conditions, X-rays can alter cell activity by promoting dopamine exocytosis, and such an effect is potentially very attractive for a more effective treatment of tumors.
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Affiliation(s)
- Federico Picollo
- Department
of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
| | - Giulia Tomagra
- Department
of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy
| | - Valentina Bonino
- Department
of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
| | - Valentina Carabelli
- Department
of Drug and Science Technology, NIS Interdepartmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy
| | - Lorenzo Mino
- Department
of Chemistry, NIS Interdepartmental Centre, University of Torino, via Giuria 7, 10125 Torino, Italy
| | - Paolo Olivero
- Department
of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
| | - Alberto Pasquarelli
- Institute
of Electron Devices and Circuits, University
of Ulm, 89069 Ulm, Germany
| | - Marco Truccato
- Department
of Physics, NIS Interdepartmental Centre, University of Torino and Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
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6
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Tomagra G, Franchino C, Pasquarelli A, Carbone E, Olivero P, Carabelli V, Picollo F. Simultaneous multisite detection of quantal release from PC12 cells using micro graphitic-diamond multi electrode arrays. Biophys Chem 2019; 253:106241. [PMID: 31398633 DOI: 10.1016/j.bpc.2019.106241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 12/28/2022]
Abstract
Micro graphitic - diamond - multi electrode arrays (μG-D-MEAs) are suitable for measuring multisite quantal dopamine (DA) release from PC12 cells. Following cell stimulation with high extracellular KCl and electrode polarization at +650 mV, amperometric spikes are detected with a mean frequency of 0.60 ± 0.16 Hz. In each recording, simultaneous detection of secretory events is occurred in approximately 50% of the electrodes. Kinetic spike parameters and background noise are preserved among the different electrodes. Comparing the amperometric spikes recorder under control conditions with those recorders from PC12 cells previously incubated for 30 min with the dopamine precursor Levodopa (L-DOPA, 20 μM) it appears that the quantal size of amperometric spikes is increased by 250% and the half-time width (t1/2) by over 120%. On the contrary, L-DOPA has no effect on the frequency of secretory events. Overall, these data demonstrate that the μG-D-MEAs represent a reliable bio-sensor to simultaneously monitor quantal exocytotic events from different cells and in perspective can be exploited as a drug-screening tool.
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Affiliation(s)
- Giulia Tomagra
- Department of Drug and Science Technology, NIS Inter-departmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy.
| | - Claudio Franchino
- Department of Drug and Science Technology, NIS Inter-departmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy
| | - Alberto Pasquarelli
- Institute of Electron Devices and Circuits, University of Ulm, 89069 Ulm, Germany
| | - Emilio Carbone
- Department of Drug and Science Technology, NIS Inter-departmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy
| | - Paolo Olivero
- Department of Physics, NIS Inter-departmental Centre, University of Torino, Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
| | - Valentina Carabelli
- Department of Drug and Science Technology, NIS Inter-departmental Centre, University of Torino, Corso Raffaello 30, 10125 Torino, Italy
| | - Federico Picollo
- Department of Physics, NIS Inter-departmental Centre, University of Torino, Italian Institute of Nuclear Physics, via Giuria 1, 10125 Torino, Italy
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Tomagra G, Picollo F, Battiato A, Picconi B, De Marchis S, Pasquarelli A, Olivero P, Marcantoni A, Calabresi P, Carbone E, Carabelli V. Quantal Release of Dopamine and Action Potential Firing Detected in Midbrain Neurons by Multifunctional Diamond-Based Microarrays. Front Neurosci 2019; 13:288. [PMID: 31024230 PMCID: PMC6465646 DOI: 10.3389/fnins.2019.00288] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/11/2019] [Indexed: 12/20/2022] Open
Abstract
Micro-Graphitic Single Crystal Diamond Multi Electrode Arrays (μG-SCD-MEAs) have so far been used as amperometric sensors to detect catecholamines from chromaffin cells and adrenal gland slices. Besides having time resolution and sensitivity that are comparable with carbon fiber electrodes, that represent the gold standard for amperometry, μG-SCD-MEAs also have the advantages of simultaneous multisite detection, high biocompatibility and implementation of amperometric/potentiometric protocols, aimed at monitoring exocytotic events and neuronal excitability. In order to adapt diamond technology to record neuronal activity, the μG-SCD-MEAs in this work have been interfaced with cultured midbrain neurons to detect electrical activity as well as quantal release of dopamine (DA). μG-SCD-MEAs are based on graphitic sensing electrodes that are embedded into the diamond matrix and are fabricated using MeV ion beam lithography. Two geometries have been adopted, with 4 × 4 and 8 × 8 microelectrodes (20 μm × 3.5 μm exposed area, 200 μm spacing). In the amperometric configuration, the 4 × 4 μG-SCD-MEAs resolved quantal exocytosis from midbrain dopaminergic neurons. KCl-stimulated DA release occurred as amperometric spikes of 15 pA amplitude and 0.5 ms half-width, at a mean frequency of 0.4 Hz. When used as potentiometric multiarrays, the 8 × 8 μG-SCD-MEAs detected the spontaneous firing activity of midbrain neurons. Extracellularly recorded action potentials (APs) had mean amplitude of ∼-50 μV and occurred at a mean firing frequency of 0.7 Hz in 67% of neurons, while the remaining fired at 6.8 Hz. Comparable findings were observed using conventional MEAs (0.9 and 6.4 Hz, respectively). To test the reliability of potentiometric recordings with μG-SCD-MEAs, the D2-autoreceptor modulation of firing was investigated by applying levodopa (L-DOPA, 20 μM), and comparing μG-SCD-MEAs, conventional MEAs and current-clamp recordings. In all cases, L-DOPA reduced the spontaneous spiking activity in most neurons by 70%, while the D2-antagonist sulpiride reversed this effect. Cell firing inhibition was generally associated with increased APs amplitude. A minority of neurons was either insensitive to, or potentiated by L-DOPA, suggesting that AP recordings originate from different midbrain neuronal subpopulations and reveal different modulatory pathways. Our data demonstrate, for the first time, that μG-SCD-MEAs are multi-functional biosensors suitable to resolve real-time DA release and AP firing in in vitro neuronal networks.
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Affiliation(s)
- Giulia Tomagra
- Department of Drug and Science Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
| | - Federico Picollo
- Department of Physics and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy.,Istituto Nazionale di Fisica Nucleare - Sezione di Torino, Turin, Italy
| | - Alfio Battiato
- Istituto Nazionale di Fisica Nucleare - Sezione di Torino, Turin, Italy
| | - Barbara Picconi
- Experimental Neurophysiology Laboratory, IRCCS San Raffaele Pisana, University San Raffaele, Rome, Italy.,University San Raffaele, Rome, Italy
| | - Silvia De Marchis
- Department of Life Sciences and Systems Biology and "NICO" Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Turin, Italy
| | | | - Paolo Olivero
- Department of Physics and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy.,Istituto Nazionale di Fisica Nucleare - Sezione di Torino, Turin, Italy
| | - Andrea Marcantoni
- Department of Drug and Science Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
| | - Paolo Calabresi
- Neurological Clinic, Department of Medicine, Hospital Santa Maria della Misericordia, University of Perugia, Perugia, Italy
| | - Emilio Carbone
- Department of Drug and Science Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
| | - Valentina Carabelli
- Department of Drug and Science Technology and "NIS" Inter-departmental Centre, University of Torino, Turin, Italy
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8
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Liu X, Tong Y, Fang PP. Recent development in amperometric measurements of vesicular exocytosis. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Huang M, Delacruz JB, Ruelas JC, Rathore SS, Lindau M. Surface-modified CMOS IC electrochemical sensor array targeting single chromaffin cells for highly parallel amperometry measurements. Pflugers Arch 2018; 470:113-123. [PMID: 28889250 PMCID: PMC5750066 DOI: 10.1007/s00424-017-2067-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 08/28/2017] [Accepted: 08/31/2017] [Indexed: 02/06/2023]
Abstract
Amperometry is a powerful method to record quantal release events from chromaffin cells and is widely used to assess how specific drugs modify quantal size, kinetics of release, and early fusion pore properties. Surface-modified CMOS-based electrochemical sensor arrays allow simultaneous recordings from multiple cells. A reliable, low-cost technique is presented here for efficient targeting of single cells specifically to the electrode sites. An SU-8 microwell structure is patterned on the chip surface to provide insulation for the circuitry as well as cell trapping at the electrode sites. A shifted electrode design is also incorporated to increase the flexibility of the dimension and shape of the microwells. The sensitivity of the electrodes is validated by a dopamine injection experiment. Microwells with dimensions slightly larger than the cells to be trapped ensure excellent single-cell targeting efficiency, increasing the reliability and efficiency for on-chip single-cell amperometry measurements. The surface-modified device was validated with parallel recordings of live chromaffin cells trapped in the microwells. Rapid amperometric spikes with no diffusional broadening were observed, indicating that the trapped and recorded cells were in very close contact with the electrodes. The live cell recording confirms in a single experiment that spike parameters vary significantly from cell to cell but the large number of cells recorded simultaneously provides the statistical significance.
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Affiliation(s)
- Meng Huang
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA
| | - Joannalyn B Delacruz
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA
| | - John C Ruelas
- ExoCytronics LLC, 1601 S Providence Rd, Columbia, MO, 65211, USA
| | - Shailendra S Rathore
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA
| | - Manfred Lindau
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA.
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11
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Gillis KD, Liu XA, Marcantoni A, Carabelli V. Electrochemical measurement of quantal exocytosis using microchips. Pflugers Arch 2017; 470:97-112. [PMID: 28866728 DOI: 10.1007/s00424-017-2063-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 08/21/2017] [Accepted: 08/23/2017] [Indexed: 01/30/2023]
Abstract
Carbon-fiber electrodes (CFEs) are the gold standard for quantifying the release of oxidizable neurotransmitters from single vesicles and single cells. Over the last 15 years, microfabricated devices have emerged as alternatives to CFEs that offer the possibility of higher throughput, subcellular spatial resolution of exocytosis, and integration with other techniques for probing exocytosis including microfluidic cell handling and solution exchange, optical imaging and stimulation, and electrophysiological recording and stimulation. Here we review progress in developing electrochemical electrode devices capable of resolving quantal exocytosis that are fabricated using photolithography.
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Affiliation(s)
- Kevin D Gillis
- Department of Bioengineering, University of Missouri, Columbia, MO, USA.
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA.
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.
| | - Xin A Liu
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | - Andrea Marcantoni
- Department of Drug Science and "NIS" Inter-departmental Centre, University of Torino, Torino, Italy
| | - Valentina Carabelli
- Department of Drug Science and "NIS" Inter-departmental Centre, University of Torino, Torino, Italy
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12
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Carabelli V, Marcantoni A, Picollo F, Battiato A, Bernardi E, Pasquarelli A, Olivero P, Carbone E. Planar Diamond-Based Multiarrays to Monitor Neurotransmitter Release and Action Potential Firing: New Perspectives in Cellular Neuroscience. ACS Chem Neurosci 2017; 8:252-264. [PMID: 28027435 DOI: 10.1021/acschemneuro.6b00328] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
High biocompatibility, outstanding electrochemical responsiveness, inertness, and transparency make diamond-based multiarrays (DBMs) first-rate biosensors for in vitro detection of electrochemical and electrical signals from excitable cells together, with potential for in vivo applications as neural interfaces and prostheses. Here, we will review the electrochemical and physical properties of various DBMs and how these devices have been employed for recording released neurotransmitter molecules and all-or-none action potentials from living cells. Specifically, we will overview how DBMs can resolve localized exocytotic events from subcellular compartments using high-density microelectrode arrays (MEAs), or monitoring oxidizable neurotransmitter release from populations of cells in culture and tissue slices using low-density MEAs. Interfacing DBMs with excitable cells is currently leading to the promising opportunity of recording electrical signals as well as creating neuronal interfaces through the same device. Given the recent increasingly growing development of newly available DBMs of various geometries to monitor electrical activity and neurotransmitter release in a variety of excitable and neuronal tissues, the discussion will be limited to planar DBMs.
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Affiliation(s)
- Valentina Carabelli
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
| | - Andrea Marcantoni
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
| | - Federico Picollo
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 sez. Torino, Italy
| | - Alfio Battiato
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 sez. Torino, Italy
| | - Ettore Bernardi
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 sez. Torino, Italy
| | - Alberto Pasquarelli
- Institute
of Electron Devices and Circuits, Ulm University, 89081 Ulm, Germany
| | - Paolo Olivero
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 sez. Torino, Italy
| | - Emilio Carbone
- Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia (CNISM), 10125 Torino Unit, Italy
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13
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Picollo F, Battiato A, Bernardi E, Marcantoni A, Pasquarelli A, Carbone E, Olivero P, Carabelli V. Microelectrode Arrays of Diamond-Insulated Graphitic Channels for Real-Time Detection of Exocytotic Events from Cultured Chromaffin Cells and Slices of Adrenal Glands. Anal Chem 2016; 88:7493-9. [DOI: 10.1021/acs.analchem.5b04449] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Federico Picollo
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 Torino, Italy
- Physics
Department, University of Torino, 10125 Torino, Italy
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
| | - Alfio Battiato
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 Torino, Italy
- Physics
Department, University of Torino, 10125 Torino, Italy
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
| | - Ettore Bernardi
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 Torino, Italy
- Physics
Department, University of Torino, 10125 Torino, Italy
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
| | - Andrea Marcantoni
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
- Department
of Drug Science and Technology, University of Torino, 10125 Torino, Italy
| | - Alberto Pasquarelli
- Institute
of Electron Devices and Circuits, Ulm University, 89081 Ulm, Germany
| | - Emilio Carbone
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
- Department
of Drug Science and Technology, University of Torino, 10125 Torino, Italy
| | - Paolo Olivero
- Istituto Nazionale di Fisica Nucleare (INFN), 10125 Torino, Italy
- Physics
Department, University of Torino, 10125 Torino, Italy
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
| | - Valentina Carabelli
- “Nanostructured
Interfaces and Surfaces” Inter-departmental Centre, University of Torino, 10125 Torino, Italy
- Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Torino Unit, 10125 Torino, Italy
- Department
of Drug Science and Technology, University of Torino, 10125 Torino, Italy
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14
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Picollo F, Battiato A, Bernardi E, Plaitano M, Franchino C, Gosso S, Pasquarelli A, Carbone E, Olivero P, Carabelli V. All-carbon multi-electrode array for real-time in vitro measurements of oxidizable neurotransmitters. Sci Rep 2016; 6:20682. [PMID: 26857940 PMCID: PMC4746641 DOI: 10.1038/srep20682] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/31/2015] [Indexed: 02/05/2023] Open
Abstract
We report on the ion beam fabrication of all-carbon multi electrode arrays (MEAs) based on 16 graphitic micro-channels embedded in single-crystal diamond (SCD) substrates. The fabricated SCD-MEAs are systematically employed for the in vitro simultaneous amperometric detection of the secretory activity from populations of chromaffin cells, demonstrating a new sensing approach with respect to standard techniques. The biochemical stability and biocompatibility of the SCD-based device combined with the parallel recording of multi-electrodes array allow: i) a significant time saving in data collection during drug screening and/or pharmacological tests over a large number of cells, ii) the possibility of comparing altered cell functionality among cell populations, and iii) the repeatition of acquisition runs over many cycles with a fully non-toxic and chemically robust bio-sensitive substrate.
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Affiliation(s)
- Federico Picollo
- Istituto Nazionale di Fisica Nucleare (INFN) Sez. Torino; via P. Giuria 1, 10125, Torino, Italy.,Physics Department and "NIS" Inter-departmental Centre - University of Torino; via P. Giuria 1, 10125, Torino, Italy.,Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy
| | - Alfio Battiato
- Istituto Nazionale di Fisica Nucleare (INFN) Sez. Torino; via P. Giuria 1, 10125, Torino, Italy.,Physics Department and "NIS" Inter-departmental Centre - University of Torino; via P. Giuria 1, 10125, Torino, Italy.,Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy
| | - Ettore Bernardi
- Istituto Nazionale di Fisica Nucleare (INFN) Sez. Torino; via P. Giuria 1, 10125, Torino, Italy.,Physics Department and "NIS" Inter-departmental Centre - University of Torino; via P. Giuria 1, 10125, Torino, Italy.,Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy
| | - Marilena Plaitano
- Physics Department and "NIS" Inter-departmental Centre - University of Torino; via P. Giuria 1, 10125, Torino, Italy
| | - Claudio Franchino
- Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy.,Drug Science and Technology Department and "NIS" Inter-departmental Centre - University of Torino; Corso Raffaello 30, 10125, Torino, Italy
| | - Sara Gosso
- Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy.,Drug Science and Technology Department and "NIS" Inter-departmental Centre - University of Torino; Corso Raffaello 30, 10125, Torino, Italy
| | - Alberto Pasquarelli
- Institute of Electron Devices and Circuits - University of Ulm - Ulm; Albert Einstein Allee 45, 89069, Germany
| | - Emilio Carbone
- Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy.,Drug Science and Technology Department and "NIS" Inter-departmental Centre - University of Torino; Corso Raffaello 30, 10125, Torino, Italy
| | - Paolo Olivero
- Istituto Nazionale di Fisica Nucleare (INFN) Sez. Torino; via P. Giuria 1, 10125, Torino, Italy.,Physics Department and "NIS" Inter-departmental Centre - University of Torino; via P. Giuria 1, 10125, Torino, Italy.,Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy
| | - Valentina Carabelli
- Consorzio Nazionale Inter-universitario per le Scienze fisiche della Materia (CNISM) Sez. Torino, Italy.,Drug Science and Technology Department and "NIS" Inter-departmental Centre - University of Torino; Corso Raffaello 30, 10125, Torino, Italy
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15
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Forneris J, Traina P, Monticone DG, Amato G, Boarino L, Brida G, Degiovanni IP, Enrico E, Moreva E, Grilj V, Skukan N, Jakšić M, Genovese M, Olivero P. Electrical stimulation of non-classical photon emission from diamond color centers by means of sub-superficial graphitic electrodes. Sci Rep 2015; 5:15901. [PMID: 26510889 PMCID: PMC4625126 DOI: 10.1038/srep15901] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 10/05/2015] [Indexed: 11/28/2022] Open
Abstract
Focused MeV ion beams with micrometric resolution are suitable tools for the direct writing of conductive graphitic channels buried in an insulating diamond bulk, as already demonstrated for different device applications. In this work we apply this fabrication method to the electrical excitation of color centers in diamond, demonstrating the potential of electrical stimulation in diamond-based single-photon sources. Differently from optically-stimulated light emission from color centers in diamond, electroluminescence (EL) requires a high current flowing in the diamond subgap states between the electrodes. With this purpose, buried graphitic electrode pairs, 10 μm spaced, were fabricated in the bulk of a single-crystal diamond sample using a 6 MeV C microbeam. The electrical characterization of the structure showed a significant current injection above an effective voltage threshold of 150 V, which enabled the stimulation of a stable EL emission. The EL imaging allowed to identify the electroluminescent regions and the residual vacancy distribution associated with the fabrication technique. Measurements evidenced isolated electroluminescent spots where non-classical light emission in the 560–700 nm spectral range was observed. The spectral and auto-correlation features of the EL emission were investigated to qualify the non-classical properties of the color centers.
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Affiliation(s)
- Jacopo Forneris
- Physics Department and "NIS" Inter-departmental Centre University of Torino; INFN Sez. Torino; CNISM Research Unit - Torino; via P. Giuria 1, 10125, Torino, Italy
| | - Paolo Traina
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Daniele Gatto Monticone
- Physics Department and "NIS" Inter-departmental Centre University of Torino; INFN Sez. Torino; CNISM Research Unit - Torino; via P. Giuria 1, 10125, Torino, Italy
| | - Giampiero Amato
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Luca Boarino
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Giorgio Brida
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Ivo P Degiovanni
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Emanuele Enrico
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Ekaterina Moreva
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Veljko Grilj
- Ruđer Bošković Institute, Bijenicka 54, P.O. Box 180, 10002 Zagreb, Croatia
| | - Natko Skukan
- Ruđer Bošković Institute, Bijenicka 54, P.O. Box 180, 10002 Zagreb, Croatia
| | - Milko Jakšić
- Ruđer Bošković Institute, Bijenicka 54, P.O. Box 180, 10002 Zagreb, Croatia
| | - Marco Genovese
- Istituto Nazionale di Ricerca Metrologica (INRiM); Strada delle Cacce 91, 10135 Torino, Italy
| | - Paolo Olivero
- Physics Department and "NIS" Inter-departmental Centre University of Torino; INFN Sez. Torino; CNISM Research Unit - Torino; via P. Giuria 1, 10125, Torino, Italy
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16
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Development and characterization of a diamond-insulated graphitic multi electrode array realized with ion beam lithography. SENSORS 2014; 15:515-28. [PMID: 25558992 PMCID: PMC4327033 DOI: 10.3390/s150100515] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/24/2014] [Indexed: 11/20/2022]
Abstract
The detection of quantal exocytic events from neurons and neuroendocrine cells is a challenging task in neuroscience. One of the most promising platforms for the development of a new generation of biosensors is diamond, due to its biocompatibility, transparency and chemical inertness. Moreover, the electrical properties of diamond can be turned from a perfect insulator into a conductive material (resistivity ∼mΩ·cm) by exploiting the metastable nature of this allotropic form of carbon. A 16-channels MEA (Multi Electrode Array) suitable for cell culture growing has been fabricated by means of ion implantation. A focused 1.2 MeV He+ beam was scanned on a IIa single-crystal diamond sample (4.5 × 4.5 × 0.5 mm3) to cause highly damaged sub-superficial structures that were defined with micrometric spatial resolution. After implantation, the sample was annealed. This process provides the conversion of the sub-superficial highly damaged regions to a graphitic phase embedded in a highly insulating diamond matrix. Thanks to a three-dimensional masking technique, the endpoints of the sub-superficial channels emerge in contact with the sample surface, therefore being available as sensing electrodes. Cyclic voltammetry and amperometry measurements of solutions with increasing concentrations of adrenaline were performed to characterize the biosensor sensitivity. The reported results demonstrate that this new type of biosensor is suitable for in vitro detection of catecholamine release.
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17
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Rothe J, Frey O, Stettler A, Chen Y, Hierlemann A. Fully integrated CMOS microsystem for electrochemical measurements on 32 × 32 working electrodes at 90 frames per second. Anal Chem 2014; 86:6425-32. [PMID: 24941330 DOI: 10.1021/ac500862v] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Microelectrode arrays offer the potential to electrochemically monitor concentrations of molecules at high spatial resolution. However, current systems are limited in the number of sensor sites, signal resolution, and throughput. Here, we present a fully integrated complementary metal oxide semiconductor (CMOS) system with an array of 32 × 32 working electrodes to perform electrochemical measurements like amperometry and voltammetry. The array consists of platinum electrodes with a center-to-center distance of 100 μm and electrode diameters of 5 to 50 μm. Currents in the range from 10 μA down to pA can be measured. The current is digitized by sigma-delta converters at a maximum resolution of 13.3 bits. The integrated noise is 220 fA for a bandwidth of 100 Hz, allowing for detection of pA currents. Currents can be continuously acquired at up to 1 kHz bandwidth, or the whole array can be read out rapidly at a frame rate of up to 90 Hz. The results of the electrical characterization meet the requirements of a wide range of electrochemical methods including cyclic voltammograms and amperometric images of high spatial and temporal resolution.
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Affiliation(s)
- Joerg Rothe
- ETH Zurich , Mattenstrasse 26, Basel, 4058, Switzerland
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18
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Gosso S, Turturici M, Franchino C, Colombo E, Pasquarelli A, Carbone E, Carabelli V. Heterogeneous distribution of exocytotic microdomains in adrenal chromaffin cells resolved by high-density diamond ultra-microelectrode arrays. J Physiol 2014; 592:3215-30. [PMID: 24879870 DOI: 10.1113/jphysiol.2014.274951] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Here we describe the ability of a high-density diamond microelectrode array targeted to resolve multi-site detection of fast exocytotic events from single cells. The array consists of nine boron-doped nanocrystalline diamond ultra-microelectrodes (9-Ch NCD-UMEA) radially distributed within a circular area of the dimensions of a single cell. The device can be operated in voltammetric or chronoamperometric configuration. Sensitivity to catecholamines, tested by dose-response calibrations, set the lowest detectable concentration of adrenaline to ∼5 μm. Catecholamine release from bovine or mouse chromaffin cells could be triggered by electrical stimulation or external KCl-enriched solutions. Spikes detected from the cell apex using carbon fibre microelectrodes showed an excellent correspondence with events measured at the bottom of the cell by the 9-Ch NCD-UMEA, confirming the ability of the array to resolve single quantal secretory events. Subcellular localization of exocytosis was provided by assigning each quantal event to one of the nine channels based on its location. The resulting mapping highlights the heterogeneous distribution of secretory activity in cell microdomains of 12-27 μm2. In bovine chromaffin cells, secretion was highly heterogeneous with zones of high and medium activity in 54% of the cell surface and zones of low or no activity in the remainder. The 'non-active' ('silent') zones covered 24% of the total and persisted for 6-8 min, indicating stable location. The 9-Ch NCD-UMEA therefore appears suitable for investigating the microdomain organization of neurosecretion with high spatial resolution.
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Affiliation(s)
- Sara Gosso
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy
| | - Marco Turturici
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy Department of Neuroscience, University of Turin, 10125, Turin, Italy
| | - Claudio Franchino
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy
| | - Elisabetta Colombo
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy Institute of Electron Devices and Circuits, University of Ulm, 89069, Ulm, Germany
| | - Alberto Pasquarelli
- Institute of Electron Devices and Circuits, University of Ulm, 89069, Ulm, Germany
| | - Emilio Carbone
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy
| | - Valentina Carabelli
- Department of Drug Science and Technology, NIS Center, University of Turin, 10125, Turin, Italy
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