Publication list - Publika - Scientific publications from Oslo University Hospital

Publications by Ørjan Grøttem Martinsen

143 publications found

Original articles

Cunha AB, Schuelke C, Mesri A, Ruud SK, Aizenshtadt A, Ferrari G, Heiskanen A, Asif A, Keller SS, Ramos-Moreno T, Kalvøy H, Martínez-Serrano A, Krauss S, Emnéus J, Sampietro M, Martinsen ØG (2024)
Development of a Smart Wireless Multisensor Platform for an Optogenetic Brain Implant
Sensors (Basel), 24 (2)
DOI 10.3390/s24020575, PubMed 38257668

Hou J, Strand-Amundsen R, Martinsen ØG (2023)
Detection of physiological concentrations of GABA using dielectric spectroscopy - A pilot study
J Electr Bioimpedance, 14 (1), 47-52
DOI 10.2478/joeb-2023-0006, PubMed 38162815

Bari DS, Rammoo MNS, Aldosky HYY, Jaqsi MK, Martinsen ØG (2023)
The Five Basic Human Senses Evoke Electrodermal Activity
Sensors (Basel), 23 (19)
DOI 10.3390/s23198181, PubMed 37837011

Tariverdi A, Cote Allard U, Mathiassen K, Elle OJ, Kalvøy H, Martinsen G, Tørresen J (2023)
Reinforcement Learning-Based Switching Controller for a Milliscale Robot in a Constrained Environment
T-ASE, 99, 1-17
DOI 10.1109/TASE.2023.3259905, PublikaID 441

Tronstad C, Amini M, Olesen E, Qvigstad E, Pabst O, Martinsen T, Abie SM, Martinsen ØG, Hisdal J, Jenssen TG, Kalvøy H (2023)
Diabetic Foot Assessment using Skin Impedance in a Custom Made Sensor-sock
J Electr Bioimpedance, 13 (1), 136-142
DOI 10.2478/joeb-2022-0019, PubMed 36694878

Osen DE, Abie SM, Martinsen ØG, Egelandsdal B, Münch D (2023)
Bioimpedance-based Authentication of Defrosted Versus Fresh Pork at the End of Refrigerated Shelf Life
J Electr Bioimpedance, 13 (1), 125-131
DOI 10.2478/joeb-2022-0017, PubMed 36699663

Novik S, Drageseth MF, Grondalen MB, Nilsen O, Krauss SJK, Martinsen OG, Hafliger PD (2022)
A CMOS Multi-Electrode Array for Four-Electrode Bioimpedance Measurements
IEEE Trans Biomed Circuits Syst, 16 (6), 1276-1286
DOI 10.1109/TBCAS.2022.3214243, PubMed 36227817

Hou J, Ness SS, Tschudi J, O'Farrell M, Veddegjerde R, Martinsen ØG, Tønnessen TI, Strand-Amundsen R (2022)
Assessment of Intestinal Ischemia-Reperfusion Injury Using Diffuse Reflectance VIS-NIR Spectroscopy and Histology
Sensors (Basel), 22 (23)
DOI 10.3390/s22239111, PubMed 36501812

Hou J, Liavåg OMI, Færden IH, Martinsen ØG, Tønnessen TI, Line PD, Hagness M, Høgetveit JO, Pischke SE, Strand-Amundsen R (2022)
Utilization of dielectric properties for assessment of liver ischemia-reperfusion injury in vivo and during machine perfusion
Sci Rep, 12 (1), 11183
DOI 10.1038/s41598-022-14817-3, PubMed 35778457

Tronstad C, Pabst O, Amini M, Kleggetveit IP, Elvebakk O, Martinsen OG, Jenssen TG, Hisdal J, Berg TJ, Qvigstad E (2022)
Development of a prototype toe sensor for detection of diabetic peripheral small fiber neuropathy
Annu Int Conf IEEE Eng Med Biol Soc, 2022, 99-104
DOI 10.1109/EMBC48229.2022.9871101, PubMed 36086669

Qasim MS, Bari DS, Martinsen ØG (2022)
Influence of ambient temperature on tonic and phasic electrodermal activity components
Physiol Meas, 43 (6)
DOI 10.1088/1361-6579/ac72f4, PubMed 35609614

Hou J, Strand-Amundsen R, Tronstad C, Tønnessen TI, Høgetveit JO, Martinsen ØG (2022)
Small intestinal viability assessment using dielectric relaxation spectroscopy and deep learning
Sci Rep, 12 (1), 3279
DOI 10.1038/s41598-022-07140-4, PubMed 35228559

Jacobsen FA, Hafli EW, Tronstad C, Martinsen ØG (2021)
Classification of Emotions Based on Electrodermal Activity and Transfer Learning - a Pilot Study
J Electr Bioimpedance, 12 (1), 178-183
DOI 10.2478/joeb-2021-0021, PubMed 35111273

Singstad BJ, Azulay N, Bjurstedt A, Bjørndal SS, Drageseth MF, Engeset P, Eriksen K, Gidey MY, Granum EO, Greaker MG, Grorud A, Hewes SO, Hou J, Llop Recha AM, Matre C, Seputis A, Sørensen SE, Thøgersen V, Joten VM, Tronstad C, Martinsen ØG (2021)
Estimation of Heart Rate Variability from Finger Photoplethysmography During Rest, Mild Exercise and Mild Mental Stress
J Electr Bioimpedance, 12 (1), 89-102
DOI 10.2478/joeb-2021-0012, PubMed 35069945

Abie SM, Munch D, Egelandsdal B, Bjerke F, Wergeland I, Martinsen OG (2021)
Combined 0.2 T static magnetic field and 20 kHz, 2 V/cm square wave electric field do not affect supercooling and freezing time of saline solution and meat samples
J. Food Eng., 311, 110710
DOI 10.1016/j.jfoodeng.2021.110710

Hou J, Strand-Amundsen R, Tronstad C, Høgetveit JO, Martinsen ØG, Tønnessen TI (2021)
Automatic Prediction of Ischemia-Reperfusion Injury of Small Intestine Using Convolutional Neural Networks: A Pilot Study
Sensors (Basel), 21 (19)
DOI 10.3390/s21196691, PubMed 34641009

Nøvik S, Dragseth F, Martinsen G, Häfliger P D (2021)
Four Electrode Bioimpedance Sensor System on CMOS Chip
2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2021, 22-27
DOI 10.1109/MWSCAS47672.2021.9531741, PublikaID 400

Hou J, Abie SM, Strand-Amundsen R, Galperin YM, Bergli J, Schuelke C, Hashemizadeh S, Martinsen ØG (2021)
Temperature dependence of the microwave dielectric properties of [Formula: see text]-aminobutyric acid
Sci Rep, 11 (1), 18082
DOI 10.1038/s41598-021-97178-7, PubMed 34508109

Abie SM, Martinsen ØG, Egelandsdal B, Hou J, Bjerke F, Mason A, Münch D (2021)
Feasibility of Using Electrical Impedance Spectroscopy for Assessing Biological Cell Damage during Freezing and Thawing
Sensors (Basel), 21 (12)
DOI 10.3390/s21124129, PubMed 34208559

Ibba P, Tronstad C, Moscetti R, Mimmo T, Cantarella G, Petti L, Martinsen ØG, Cesco S, Lugli P (2021)
Supervised binary classification methods for strawberry ripeness discrimination from bioimpedance data
Sci Rep, 11 (1), 11202
DOI 10.1038/s41598-021-90471-5, PubMed 34045542

Holm S, Holm T, Martinsen ØG (2021)
Simple circuit equivalents for the constant phase element
PLoS One, 16 (3), e0248786
DOI 10.1371/journal.pone.0248786, PubMed 33770096

Tariverdi A, Venkiteswaran VK, Richter M, Elle OJ, Tørresen J, Mathiassen K, Misra S, Martinsen ØG (2021)
A Recurrent Neural-Network-Based Real-Time Dynamic Model for Soft Continuum Manipulators
Front Robot AI, 8, 631303
DOI 10.3389/frobt.2021.631303, PubMed 33869294

Andreasen N, Crandall H, Brimhall O, Miller B, Perez-Tamayo J, Martinsen OG, Kauwe SK, Sanchez B (2021)
Skin Electrical Resistance as a Diagnostic and Therapeutic Biomarker of Breast Cancer Measuring Lymphatic Regions
IEEE Access, 9, 152322-152332
DOI 10.1109/access.2021.3123569, PubMed 34888126

Aldosky HYY, Bari DS, Martinsen OG (2021)
Effects of The Long-Time Wearing of Gloves by Health Care Workers Managing Covid-19 Assessed by Electrodermal Activity: A Pilot Study
Int. J. Online Biomed. Eng., 17 (12), 177-184
DOI 10.3991/ijoe.v17i12.23439

Amini M, Kalvøy H, Martinsen ØG (2020)
Finite Element Simulation of the Impedance Response of a Vascular Segment as a Function of Changes in Electrode Configuration
J Electr Bioimpedance, 11 (1), 112-131
DOI 10.2478/joeb-2020-0017, PubMed 33584912

Bari DS, Aldosky HYY, Tronstad C, Martinsen ØG (2020)
The correlations among the skin conductance features responding to physiological stress stimuli
Skin Res Technol, 27 (4), 582-588
DOI 10.1111/srt.12989, PubMed 33381876

Drobnjak M, Hansen F, Øiestad EL, Løvli T, Trones R, Martinsen G, Pedersen-Bjertgaard S (2020)
Electromembrane Extraction with Vitals of Counducting Polymer
LCGCN North America, 38 (8), 435-439
PublikaID 355

Tariverdi A, Venkiteswaran VK, Martinsen ØG, Elle OJ, Tørresen J, Misra S (2020)
Dynamic modeling of soft continuum manipulators using lie group variational integration
PLoS One, 15 (7), e0236121
DOI 10.1371/journal.pone.0236121, PubMed 32697813

Bari DS, Yacoob Aldosky HY, Martinsen ØG (2020)
Simultaneous measurement of electrodermal activity components correlated with age-related differences
J Biol Phys, 46 (2), 177-188
DOI 10.1007/s10867-020-09547-4, PubMed 32444917

Amini M, Niemi E, Hisdal J, Kalvøy H, Tronstad C, Scholz H, Rosales A, Martinsen ØG (2020)
Monitoring the quality of frozen-thawed venous segments using bioimpedance spectroscopy
Physiol Meas, 41 (4), 044008
DOI 10.1088/1361-6579/ab85b7, PubMed 32235072

Restan MS, Skjærvø Ø, Martinsen ØG, Pedersen-Bjergaard S (2020)
Towards exhaustive electromembrane extraction under stagnant conditions
Anal Chim Acta, 1104, 1-9
DOI 10.1016/j.aca.2020.01.058, PubMed 32106938

Martinsen ØG, Kalvøy H, Bari DS, Tronstad C (2019)
A Circuit for Simultaneous Measurements of Skin Electrical Conductance, Susceptance, and Potential
J Electr Bioimpedance, 10 (1), 110-112
DOI 10.2478/joeb-2019-0016, PubMed 33584891

Andersen JH, Bjerke O, Blakaj F, Flugsrud VM, Jacobsen FA, Jonsson M, Kosaka EN, Langstrand PA, Martinsen ØG, Moen AS, Moen EQZ, Nystad ØK, Olesen E, Qureshi M, Risopatron VJØ, Ruud SK, Stensø N, Winje FL, Winness EV, Abie S, Joten VM, Tronstad C, Elvebakk O, Martinsen ØG (2019)
Bioimpedance and NIR for Non-invasive Assessment of Blood Glucose
J Electr Bioimpedance, 10 (1), 133-138
DOI 10.2478/joeb-2019-0019, PubMed 33584894

Pabst O, Martinsen ØG, Chua L (2019)
Information can be stored in the human skin memristor which has non-volatile memory
Sci Rep, 9 (1), 19260
DOI 10.1038/s41598-019-55749-9, PubMed 31848426

Elvebakk O, Tronstad C, Birkeland KI, Jenssen TG, Bjørgaas MR, Gulseth HL, Kalvøy H, Høgetveit JO, Martinsen ØG (2019)
A multiparameter model for non-invasive detection of hypoglycemia
Physiol Meas, 40 (8), 085004
DOI 10.1088/1361-6579/ab3676, PubMed 31357185

Pabst O, Martinsen ØG (2019)
Simulation based comparison between a transversal and a tangential memristor model with a capacitance in parallel
PLoS One, 14 (8), e0221533
DOI 10.1371/journal.pone.0221533, PubMed 31442270

Martinsen T, Pettersen FJ, Kalvøy H, Tronstad C, Kvarstein G, Bakken A, Høgetveit JO, Martinsen ØG, Grimnes S, Frich L (2019)
Electrosurgery and Temperature Increase in Tissue With a Passive Metal Implant
Front Surg, 6, 8
DOI 10.3389/fsurg.2019.00008, PubMed 30915337

Aria S, Elfarri Y, Elvegård M, Gottfridsson A, Grønaas HS, Harang S, Jansen A, Madland TER, Martins IB, Olstad MW, Ryan TL, Shaban AN, Svenningsen ØL, Sørensen AD, Ulvestad EH, Vister OM, Øvergaard MB, Kalvøy H, Pettersen FJ, Odland HH, Joten VM, Martinsen ØG, Tronstad C, Elvebakk O, Martinsen ØG (2019)
Measuring Blood Pulse Wave Velocity with Bioimpedance in Different Age Groups
Sensors (Basel), 19 (4)
DOI 10.3390/s19040850, PubMed 30791368

Egelandsdal B, Abie SM, Bjarnadottir S, Zhu H, Kolstad H, Bjerke F, Martinsen ØG, Mason A, Münch D (2019)
Detectability of the degree of freeze damage in meat depends on analytic-tool selection
Meat Sci, 152, 8-19
DOI 10.1016/j.meatsci.2019.02.002, PubMed 30784871

Bari DS, Aldosky HYY, Tronstad C, Kalvøy H, Martinsen ØG (2018)
Electrodermal Activity Responses for Quantitative Assessment of Felt Pain
J Electr Bioimpedance, 9 (1), 52-58
DOI 10.2478/joeb-2018-0010, PubMed 33584921

Tronstad C, Elvebakk O, Staal OM, Kalvøy H, Høgetveit JO, Jenssen TG, Birkeland KI, Martinsen ØG (2018)
Non-invasive prediction of blood glucose trends during hypoglycemia
Anal Chim Acta, 1052, 37-48
DOI 10.1016/j.aca.2018.12.009, PubMed 30685040

Pabst O, Martinsen ØG, Chua L (2018)
The non-linear electrical properties of human skin make it a generic memristor
Sci Rep, 8 (1), 15806
DOI 10.1038/s41598-018-34059-6, PubMed 30361557

Elvebakk O, Tronstad C, Birkeland KI, Jenssen TG, Bjørgaas MR, Frøslie KF, Godang K, Kalvøy H, Martinsen ØG, Gulseth HL (2018)
Evaluation of Hypoglycaemia with Non-Invasive Sensors in People with Type 1 Diabetes and Impaired Awareness of Hypoglycaemia
Sci Rep, 8 (1), 14722
DOI 10.1038/s41598-018-33189-1, PubMed 30283093

Strand-Amundsen RJ, Tronstad C, Kalvøy H, Ruud TE, Høgetveit JO, Martinsen ØG, Tønnessen TI (2018)
Small intestinal ischemia and reperfusion-bioimpedance measurements
Physiol Meas, 39 (2), 025001
DOI 10.1088/1361-6579/aaa576, PubMed 29303488

Pabst O, Martinsen OG (2018)
Interpretation of the pinched point position in human skin memristor measurements
IFMBE PROC, 65, 430-433
DOI 10.1007/978-981-10-5122-7_108

Bari DS, Aldosky HYY, Tronstad C, Kalvøy H, Martinsen ØG (2018)
Influence of Relative Humidity on Electrodermal Levels and Responses
Skin Pharmacol Physiol, 31 (6), 298-307
DOI 10.1159/000492275, PubMed 30179872

Mesri A, Cunha AB, Martinsen OG, Sampietro M, Ferrari G (2018)
A Laser Diode-Based Wireless Optogenetic
2018 14TH CONFERENCE ON PHD RESEARCH IN MICROELECTRONICS AND ELECTRONICS (PRIME 2018), 257-260

Skjærvø Ø, Brandtzaeg OK, Lausund KB, Pabst O, Martinsen ØG, Lundanes E, Wilson SR (2017)
Exploring bioimpendance instrumentation for the characterization of open tubular liquid chromatography columns
J Chromatogr A, 1534, 195-200
DOI 10.1016/j.chroma.2017.12.060, PubMed 29290401

Schwingenschuh S, Scharfetter H, Martinsen ØG, Boulgaropoulos B, Augustin T, Tiffner KI, Dragatin C, Raml R, Hoefferer C, Prandl EC, Sinner F, Hajnsek M (2017)
Assessment of skin permeability to topically applied drugs by skin impedance and admittance
Physiol Meas, 38 (11), N138-N150
DOI 10.1088/1361-6579/aa904e, PubMed 28967873

Bari DS, Aldosky HYY, Tronstad C, Kalvøy H, Martinsen ØG (2017)
Electrodermal responses to discrete stimuli measured by skin conductance, skin potential, and skin susceptance
Skin Res Technol, 24 (1), 108-116
DOI 10.1111/srt.12397, PubMed 28776764

Pabst O, Tronstad C, Martinsen OG (2017)
Instrumentation, electrode choice and challenges in human skin memristor measurement
Annu Int Conf IEEE Eng Med Biol Soc, 2017, 1844-1848
DOI 10.1109/EMBC.2017.8037205, PubMed 29060249

Tronstad C, Elvebakk O, Kalvoy H, Bjorgaas MR, Martinsen OG (2017)
Detection of sympathoadrenal discharge by parameterisation of skin conductance and ECG measurement
Annu Int Conf IEEE Eng Med Biol Soc, 2017, 3997-4000
DOI 10.1109/EMBC.2017.8037732, PubMed 29060773

Restan MS, Jensen H, Shen X, Huang C, Martinsen ØG, Kubáň P, Gjelstad A, Pedersen-Bjergaard S (2017)
Comprehensive study of buffer systems and local pH effects in electromembrane extraction
Anal Chim Acta, 984, 116-123
DOI 10.1016/j.aca.2017.06.049, PubMed 28843554

Adamczak MI, Martinsen ØG, Smistad G, Hiorth M (2017)
Polymer coated mucoadhesive liposomes intended for the management of xerostomia
Int J Pharm, 527 (1-2), 72-78
DOI 10.1016/j.ijpharm.2017.05.032, PubMed 28522426

Strand-Amundsen RJ, Reims HM, Tronstad C, Kalvøy H, Martinsen ØG, Høgetveit JO, Ruud TE, Tønnessen TI (2017)
Ischemic small intestine-in vivo versus ex vivo bioimpedance measurements
Physiol Meas, 38 (5), 715-728
DOI 10.1088/1361-6579/aa67b7, PubMed 28319030

Pabst O, Tronstad C, Grimnes S, Fowles D, Martinsen ØG (2016)
Comparison between the AC and DC measurement of electrodermal activity
Psychophysiology, 54 (3), 374-385
DOI 10.1111/psyp.12803, PubMed 28000290

Canali C, Aristovich K, Ceccarelli L, Larsen LB, Martinsen G, Wolff A, Dufva M, Emnéus J, Heiskanen A (2016)
Electrical impedance tomography methods for miniaturised 3D systems
Journal of Electrical Bioimpedance, 7, 59–67
DOI 10.5617/jeb.4084, PublikaID 239

Pettersen FJ, Martinsen OG, Hogetveit JO, Kalvoy H, Odland HH (2016)
Bioimpedance measurements of temporal changes in beating hearts
Biomed. Phys. Eng. Express, 2 (6), 065015
DOI 10.1088/2057-1976/2/6/065015

Adamczak MI, Martinsen ØG, Smistad G, Hiorth M (2016)
Water sorption properties of HM-pectin and liposomes intended to alleviate dry mouth
Int J Pharm, 506 (1-2), 201-6
DOI 10.1016/j.ijpharm.2016.04.050, PubMed 27109048

Abie SM, Bergli J, Galperin Y, Martinsen OG (2016)
Universality of AC conductance in human hair
Biomed. Phys. Eng. Express, 2 (2), 027002
DOI 10.1088/2057-1976/2/2/027002

Strand-Amundsen RJ, Tronstad C, Kalvøy H, Gundersen Y, Krohn CD, Aasen AO, Holhjem L, Reims HM, Martinsen ØG, Høgetveit JO, Ruud TE, Tønnessen TI (2016)
In vivo characterization of ischemic small intestine using bioimpedance measurements
Physiol Meas, 37 (2), 257-75
DOI 10.1088/0967-3334/37/2/257, PubMed 26805916

Canali C, Heiskanen A, Martinsen OG, Mohanty S, Dufva M, Wolff A, Emneus J (2016)
Impedance-Based Monitoring for Tissue Engineering Applications
IFMBE PROC, 54, 36-39
DOI 10.1007/978-981-287-928-8_10

Martinsen G, Pabst O, Tronstad C, Grimnes S (2015)
Sources of error in AC measurement of skin conductance
Journal of Electrical Bioimpedance, 6 (2015), 49-53
DOI 10.5617/jeb.2640, PublikaID 230

Canali C, Mazzoni C, Larsen LB, Heiskanen A, Martinsen ØG, Wolff A, Dufva M, Emnéus J (2015)
An impedance method for spatial sensing of 3D cell constructs--towards applications in tissue engineering
Analyst, 140 (17), 6079-88
DOI 10.1039/c5an00987a, PubMed 26198701

Pettersen FJ, Martinsen T, Hogetveit JO, Martinsen OG (2015)
Unintentional heating at implants when using electrosurgery
Annu Int Conf IEEE Eng Med Biol Soc, 2015, 5805-8
DOI 10.1109/EMBC.2015.7319711, PubMed 26737611

Tronstad C, Staal OM, Saelid S, Martinsen OG (2015)
Model- based filtering for artifact and noise suppression with state estimation for electrodermal activity measurements in real time
Annu Int Conf IEEE Eng Med Biol Soc, 2015, 2750-3
DOI 10.1109/EMBC.2015.7318961, PubMed 26736861

Canali C, Larsen LB, Martinsen OG, Heiskanen A (2015)
Conductometric analysis in bio-applications: A universal impedance spectroscopy-based approach using modified electrodes
Sens. Actuator B-Chem., 212, 544-550
DOI 10.1016/j.snb.2015.02.029

Canali C, Mohanty S, Heiskanen A, Muhammad HB, Martinsen OG, Dufva M, Wolff A, Emneus J (2015)
Impedance Spectroscopic Characterisation of Porosity in 3D Cell Culture Scaffolds with Different Channel Networks
Electroanalysis, 27 (1), 193-199
DOI 10.1002/elan.201400413

Kalvoy H, Aliau-Bonet C, Pallas-Areny R, Martinsen OG (2015)
Effects of stray capacitance to ground in three electrode monopolar needle bioimpedance measurements
Annu Int Conf IEEE Eng Med Biol Soc, 2015, 7542-5
DOI 10.1109/EMBC.2015.7320137, PubMed 26738037

Canali C, Heiskanen A, Muhammad HB, Høyum P, Pettersen FJ, Hemmingsen M, Wolff A, Dufva M, Martinsen ØG, Emnéus J (2014)
Bioimpedance monitoring of 3D cell culturing--complementary electrode configurations for enhanced spatial sensitivity
Biosens Bioelectron, 63, 72-79
DOI 10.1016/j.bios.2014.07.020, PubMed 25058941

Øyri K, Chávez-Santiago R, Støa S, Martinsen ØG, Balasingham I, Fosse E (2014)
Wireless vital signs from a life-supporting medical device exposed to electromagnetic disturbance
Minim Invasive Ther Allied Technol, 23 (6), 341-9
DOI 10.3109/13645706.2014.931869, PubMed 24976270

Martinsen ØG, Nordbotten B, Grimnes S, Fossan H, Eilevstjønn J (2014)
Bioimpedance-based respiration monitoring with a defibrillator
IEEE Trans Biomed Eng, 61 (6), 1858-62
DOI 10.1109/TBME.2014.2308924, PubMed 24845296

Nordbotten BJ, Tronstad C, Martinsen ØG, Grimnes S (2014)
Estimation of skin conductance at low frequencies using measurements at higher frequencies for EDA applications
Physiol Meas, 35 (6), 1011-8
DOI 10.1088/0967-3334/35/6/1011, PubMed 24844405

Pettersen FJ, Ferdous H, Kalvøy H, Martinsen ØG, Høgetveit JO (2014)
Comparison of four different FIM configurations--a simulation study
Physiol Meas, 35 (6), 1067-82
DOI 10.1088/0967-3334/35/6/1067, PubMed 24844930

Schwingenschuh S, Hajnsek M, Scharfetter H, Martinsen OG, Tiffner K, Dragatin C, Raml R, Mautner A, Bodenlenz M, Sinner F (2013)
Skin impedance measurements support ex-vivo penetration studies for topical applied drugs
Biomed Tech (Berl), 58 Suppl 1
DOI 10.1515/bmt-2013-4420, PubMed 24043178

Tronstad C, Kalvøy H, Grimnes S, Martinsen ØG (2013)
Waveform difference between skin conductance and skin potential responses in relation to electrical and evaporative properties of skin
Psychophysiology, 50 (11), 1070-8
DOI 10.1111/psyp.12092, PubMed 23889171

Abir R, Pettersen FJ, Martinsen G, Rabbani KS (2013)
Effect of a spherical object in 4 electrode Focused Impedance Method (FIM): measurement and simulation
J Phys: Conf Ser, 434, 012009
DOI 10.1088/1742-6596/434/1/012009, PublikaID 212

Tronstad C, Kalvøy H, Grimnes S, Martinsen Ø (2013)
Improved estimation of sweating based on electrical properties of skin
Ann Biomed Eng, 41 (5), 1074-83
DOI 10.1007/s10439-013-0743-4, PubMed 23325304

Johnsen GK, Knaapila M, Martinsen OG, Helgesen G (2012)
Conductivity enhancement of silver filled polymer composites through electric field alignment
Compos. Sci. Technol., 72 (15), 1841-1847
DOI 10.1016/j.compscitech.2012.07.011

Ahn AC, Gow BJ, Martinsen OG, Zhao M, Grodzinsky AJ, Baikie ID (2012)
Applying the Kelvin probe to biological tissues: theoretical and computational analyses
Phys Rev E Stat Nonlin Soft Matter Phys, 85 (6 Pt 1), 061901
DOI 10.1103/PhysRevE.85.061901, PubMed 23005121

Hoekstra F, Martinsen OG, Verdaasdonk RM, Janssen TWJ, Meijer JH (2012)
The Initial Systolic Time Interval in patients with spinal cord injury measured with impedance cardiography
J PHYS CONF SER, 407, 012025
DOI 10.1088/1742-6596/407/1/012025

Gow BJ, Cheng JL, Baikie ID, Martinsen OG, Zhao M, Smith S, Ahn AC (2012)
Electrical potential of acupuncture points: use of a noncontact scanning Kelvin probe
Evid Based Complement Alternat Med, 2012, 632838
DOI 10.1155/2012/632838, PubMed 23320033

Mikolajewska P, Rømoen OT, Martinsen OG, Iani V, Moan J, Grimnes S, Juzeniene A (2011)
Bioimpedance for pain monitoring during cutaneous photodynamic therapy: Preliminary study
Photodiagnosis Photodyn Ther, 8 (4), 307-13
DOI 10.1016/j.pdpdt.2011.06.001, PubMed 22122917

Nordbotten BJ, Tronstad C, Martinsen Ø, Grimnes S (2011)
Evaluation of algorithms for calculating bioimpedance phase angle values from measured whole-body impedance modulus
Physiol Meas, 32 (7), 755-65
DOI 10.1088/0967-3334/32/7/S03, PubMed 21646707

Johnsen GK, Lütken CA, Martinsen OG, Grimnes S (2011)
Memristive model of electro-osmosis in skin
Phys Rev E Stat Nonlin Soft Matter Phys, 83 (3 Pt 1), 031916
DOI 10.1103/PhysRevE.83.031916, PubMed 21517534

Grimnes S, Jabbari A, Martinsen ØG, Tronstad C (2011)
Electrodermal activity by DC potential and AC conductance measured simultaneously at the same skin site
Skin Res Technol, 17 (1), 26-34
DOI 10.1111/j.1600-0846.2010.00459.x, PubMed 20923453

Knaapila M, Rømoen OT, Svåsand E, Pinheiro JP, Martinsen ØG, Buchanan M, Skjeltorp AT, Helgesen G (2011)
Conductivity enhancement in carbon nanocone adhesive by electric field induced formation of aligned assemblies
ACS Appl Mater Interfaces, 3 (2), 378-84
DOI 10.1021/am100990c, PubMed 21268639

Kalvøy H, Johnsen GK, Martinsen OG, Grimnes S (2011)
New method for separation of electrode polarization impedance from measured tissue impedance
Open Biomed Eng J, 5, 8-13
DOI 10.2174/1874120701105010008, PubMed 21625369

Johnsen GK, Norlen L, Martinsen ØG, Grimnes S (2011)
Sorption properties of the human stratum corneum
Skin Pharmacol Physiol, 24 (4), 190-8
DOI 10.1159/000324051, PubMed 21346399

Tronstad C, Johnsen GK, Grimnes S, Martinsen ØG (2010)
A study on electrode gels for skin conductance measurements
Physiol Meas, 31 (10), 1395-410
DOI 10.1088/0967-3334/31/10/008, PubMed 20811086

Høyum P, Kalvøy H, Martinsen ØG, Grimnes S (2010)
A finite element model of needle electrode spatial sensitivity
Physiol Meas, 31 (10), 1369-79
DOI 10.1088/0967-3334/31/10/006, PubMed 20736490

Tronstad C, Pischke SE, Holhjem L, Tønnessen TI, Martinsen OG, Grimnes S (2010)
Early detection of cardiac ischemia using a conductometric pCO(2) sensor: real-time drift correction and parameterization
Physiol Meas, 31 (9), 1241-55
DOI 10.1088/0967-3334/31/9/013, PubMed 20702916

Pettersen FJ, Martinsen G, Grimnes S, Høgetveit JO (2010)
Impedance measurement set-up based on off-the-shelf PXI modules.
Journal of Physics: Conference Series, 224 (1), 012002
DOI 10.1088/1742-6596/224/1/012002, PublikaID 127

Johnsen GK, Haugsnes AB, Martinsen OG, Grimnes S (2010)
A new approach for an estimation of the equilibrium stratum corneum water content
Skin Res Technol, 16 (2), 142-5
DOI 10.1111/j.1600-0846.2009.00412.x, PubMed 20456093

Kalvøy H, Tronstad C, Nordbotten B, Grimnes S, Martinsen ØG (2010)
Electrical impedance of stainless steel needle electrodes
Ann Biomed Eng, 38 (7), 2371-82
DOI 10.1007/s10439-010-9989-2, PubMed 20217478

Martinsen OG, Kalvøy H, Grimnes S, Nordbotten B, Hol PK, Fosse E, Myklebust H, Becker LB (2010)
Invasive electrical impedance tomography for blood vessel detection
Open Biomed Eng J, 4, 135-7
DOI 10.2174/1874120701004010135, PubMed 21611140

Svasand E, Kristiansen KD, Martinsen OG, Helgesen G, Grimnes S, Skjeltorp AT (2009)
Behavior of carbon cone particle dispersions in electric and magnetic fields
Colloid Surf. A-Physicochem. Eng. Asp., 339 (1-3), 211-216
DOI 10.1016/j.colsurfa.2009.02.025

Johnsen GK, Martinsen OG, Grimnes S (2009)
Estimation of in vivo water content of the stratum corneum from electrical measurements
Open Biomed Eng J, 3, 8-12
DOI 10.2174/1874120700903010008, PubMed 19707522

Kalvøy H, Frich L, Grimnes S, Martinsen OG, Hol PK, Stubhaug A (2009)
Impedance-based tissue discrimination for needle guidance
Physiol Meas, 30 (2), 129-40
DOI 10.1088/0967-3334/30/2/002, PubMed 19136732

Grimnes S, Martinsen OG, Tronstad C (2009)
Noise properties of the 3-electrode skin admittance measuring circuit
IFMBE PROC, 22 (1-3), 720-722

Martinsen OG, Grimnes S (2009)
The concept of transfer impedance in bioimpedance measurements
IFMBE PROC, 22 (1-3), 1078-+

Tronstad C, Gjein GE, Grimnes S, Martinsen ØG, Krogstad AL, Fosse E (2008)
Electrical measurement of sweat activity
Physiol Meas, 29 (6), S407-15
DOI 10.1088/0967-3334/29/6/S34, PubMed 18544832

Martinsen OG, Grimnes S, Nilsen SH (2008)
Water sorption and electrical properties of a human nail
Skin Res Technol, 14 (2), 142-6
DOI 10.1111/j.1600-0846.2007.00267.x, PubMed 18412555

Martinsen ØG, Grimnes S, Nilsen JK, Tronstad C, Jang W, Kim H, Shin K, Naderi M, Thielmann F (2008)
Gravimetric method for in vitro calibration of skin hydration measurements
IEEE Trans Biomed Eng, 55 (2 Pt 1), 728-32
DOI 10.1109/TBME.2007.912651, PubMed 18270010

Kalvoy H, Martinsen OG, Grimnes S (2008)
Determination of tissue type surrounding a needle tip by electrical bioimpedance
Annu Int Conf IEEE Eng Med Biol Soc, 2008, 2285-6
DOI 10.1109/IEMBS.2008.4649653, PubMed 19163156

Tronstad C, Martinsen OG, Grimnes S (2008)
Embedded instrumentation for skin admittance measurement
Annu Int Conf IEEE Eng Med Biol Soc, 2008, 2373-6
DOI 10.1109/IEMBS.2008.4649676, PubMed 19163179

Johnsen GK, Haugsnes AB, Martinsen ØG, Grimnes S (2008)
Stratum corneum in vivo water content from TEWL-measurements
Annu Int Conf IEEE Eng Med Biol Soc, 2008, 3166-9
DOI 10.1109/IEMBS.2008.4649876, PubMed 19163379

Ahn AC, Martinsen OG (2007)
Electrical characterization of acupuncture points: technical issues and challenges
J Altern Complement Med, 13 (8), 817-24
DOI 10.1089/acm.2007.7193, PubMed 17983337

Martinsen OG, Clausen S, Nysaether JB, Grimnes S (2007)
Utilizing characteristic electrical properties of the epidermal skin layers to detect fake fingers in biometric fingerprint systems--a pilot study
IEEE Trans Biomed Eng, 54 (5), 891-4
DOI 10.1109/TBME.2007.893472, PubMed 17518286

Grimnes S, Martinsen OG (2007)
Sources of error in tetrapolar impedance measurements on biomaterials and other ionic conductors
J. Phys. D-Appl. Phys., 40 (1), 9-14
DOI 10.1088/0022-3727/40/1/S02

Mirtaheri P, Grimnes S, Martinsen OG (2007)
Designing a PtCO2 sensor based on conductivity measurements
IFMBE PROC, 17, 300-+

Hoyum P, Grimnes S, Martinsen OG (2007)
Geometry dependencies in tetrapolar electrode systems - a finite element analysis on needle electrodes
IFMBE PROC, 17, 198-200

Jabbari A, Grimnes S, Martinsen OG (2007)
Electrodermal response - correlation between potential and conductance
IFMBE PROC, 17, 747-750

Kalvoy H, Grimnes S, Martinsen OG (2007)
Needle position determined by tissue impedance
IFMBE PROC, 17, 205-+

Johnsen GK, Martinsen OG, Grimnes S (2007)
Water gradient and calibration of stratum corneum hydration measurements
IFMBE PROC, 17, 158-160

Tronstad C, Grimnes S, Martinsen OG, Fosse E (2007)
Developmeut of a medical device for long-term sweat activity measurements
IFMBE PROC, 17, 236-+

Martinsen OG, Grimnes S, Nilsen JK, Tronstad C, Jang W, Kim H, Shin K (2007)
Calibration of skin hydration measurements
IFMBE PROC, 17, 161-+

Mirtaheri P, Grimnes S, Martinsen OG (2005)
Electrode polarization impedance in weak NaCl aqueous solutions
IEEE Trans Biomed Eng, 52 (12), 2093-9
DOI 10.1109/TBME.2005.857639, PubMed 16366232

Grimnes S, Martinsen OG (2005)
Cole electrical impedance model--a critique and an alternative
IEEE Trans Biomed Eng, 52 (1), 132-5
DOI 10.1109/TBME.2004.836499, PubMed 15651574

Mirtaheri P, Omtveit T, Klotzbuecher T, Grimnes S, Martinsen OG, Tønnessen TI (2004)
Miniaturization of a biomedical gas sensor
Physiol Meas, 25 (6), 1511-22
DOI 10.1088/0967-3334/25/6/015, PubMed 15712728

Mirtaheri P, Grimnes S, Martinsen OG, Tønnessen TI (2004)
A new biomedical sensor for measuring PCO2
Physiol Meas, 25 (2), 421-36
DOI 10.1088/0967-3334/25/2/002, PubMed 15132308

Amoussou-Guenou KM, Martinsen OG, Squitiero B, Rusch P, Healy JC (2004)
The Microfiltrometer (MicroFM): a new filtration device for the assessment of less deformable erythrocyte subpopulations
Scand J Clin Lab Invest, 64 (2), 108-12
DOI 10.1080/00365510410004849, PubMed 15115247

Amoussou-Guenou KM, Martinsen OG, Hounkponou M, Doumit J, Healy JC (2004)
Basic principles for evaluation of less deformable erythrocyte subpopulations with the Microfiltrometer
Scand J Clin Lab Invest, 64 (3), 169-74
DOI 10.1080/00365510410004858, PubMed 15222626

Martinsen OG, Grimnes S (2003)
Authors reply to comments on "Line patterns in the mosaic electric properties of human skin--a cross correlation study."
IEEE Trans Biomed Eng, 50 (1), 114
DOI 10.1109/TBME.2001.936373, PubMed 12617531

Hernes KG, Mørkrid L, Fremming A, Ødegården S, Martinsen ØG, Storm H (2002)
Skin conductance changes during the first year of life in full-term infants
Pediatr Res, 52 (6), 837-43
DOI 10.1203/00006450-200212000-00005, PubMed 12438658

Martinsen OG, Grimnes S, Mørkrid L, Hareide M (2001)
Line patterns in the mosaic electrical properties of human skin--a cross-correlation study
IEEE Trans Biomed Eng, 48 (6), 731-4
DOI 10.1109/10.923791, PubMed 11396602

Martinsen OG, Grimnes S (2001)
Facts and myths about electrical measurement of stratum corneum hydration state
Dermatology, 202 (2), 87-9
DOI 10.1159/000051604, PubMed 11306826

Storm H, Fremming A, Odegaard S, Martinsen OG, Morkrid L (2000)
The development of a software program for analyzing spontaneous and externally elicited skin conductance changes in infants and adults
Clin Neurophysiol, 111 (10), 1889-98
DOI 10.1016/s1388-2457(00)00421-1, PubMed 11018507

Martinsen OG, Grimnes S, Haug E (1999)
Measuring depth depends on frequency in electrical skin impedance measurements
Skin Res. Technol., 5 (3), 179-181
DOI 10.1111/j.1600-0846.1999.tb00128.x

Martinsen OG, Grimnes S, Sveen O (1997)
Dielectric properties of some keratinised tissues. Part 1: Stratum corneum and nail in situ
Med Biol Eng Comput, 35 (3), 172-6
DOI 10.1007/BF02530033, PubMed 9246847

Martinsen OG, Grimnes S, Kongshaug ES (1997)
Dielectric properties of some keratinised tissues. Part 2: Human hair
Med Biol Eng Comput, 35 (3), 177-80
DOI 10.1007/BF02530034, PubMed 9246848

Martinsen OG, Grimnes S, Karlsen J (1995)
Electrical methods for skin moisture assessment
Skin Pharmacol, 8 (5), 237-45
DOI 10.1159/000211353, PubMed 8527155

Review articles

Tronstad C, Amini M, Bach DR, Martinsen ØG (2022)
Current trends and opportunities in the methodology of electrodermal activity measurement
Physiol Meas, 43 (2)
DOI 10.1088/1361-6579/ac5007, PubMed 35090148

Sanchez B, Martinsen OG, Freeborn TJ, Furse CM (2020)
Electrical impedance myography: A critical review and outlook
Clin Neurophysiol, 132 (2), 338-344
DOI 10.1016/j.clinph.2020.11.014, PubMed 33450556

Ahn AC, Colbert AP, Anderson BJ, Martinsen OG, Hammerschlag R, Cina S, Wayne PM, Langevin HM (2008)
Electrical properties of acupuncture points and meridians: a systematic review
Bioelectromagnetics, 29 (4), 245-56
DOI 10.1002/bem.20403, PubMed 18240287

Ahn AC, Colbert AP, Anderson BJ, Martinsen OG, Hammerschlag R, Cina S, Wayne PM, Langevin HM, Kramer S (2008)
Electrical Properties of Acupuncture Points and Meridians: A Systematic Review
Dtsch. Z. Akupunkt., 51 (3), 48-49
DOI 10.1016/j.dza.2008.08.002