Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Stig Ollmar"'
Autor:
Stig Ollmar, Alejandro Fernandez Schrunder, Ulrik Birgersson, Tomas Kristoffersson, Ana Rusu, Elina Thorsson, Patricia Hedenqvist, Elin Manell, Anneli Rydén, Marianne Jensen-Waern, Saul Rodriguez
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract The ability to perform accurate continuous glucose monitoring without blood sampling has revolutionised the management of diabetes. Newer methods that can allow measurements during longer periods are necessary to substantially improve patien
Externí odkaz:
https://doaj.org/article/a257c05e4e3b4419822e285ce134e697
Autor:
Christopher D. Anderson, Sebastian Björklund, Stig Ollmar, Maxim Morin, Johan Engblom, Per Svedenhag, Tautgirdas Ruzgas
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-18 (2020)
Scientific Reports
Scientific Reports
Skin is easily accessible for transdermal drug delivery and also attractive for biomarker sampling. These applications are strongly influenced by hydration where elevated hydration generally leads to increased skin permeability. Thus, favorable trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb11ecf6564ef637210707265b561ddd
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-171384
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-171384
Publikováno v:
Journal of Electrical Bioimpedance. 8:84-96
A mechanistic mathematical model for electrical impedance spectroscopy (EIS) measurements of human skin is analyzed, leading to a reduced model and approximate solutions. In essence, the model considers a complex-valued Laplace equation in the freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b92eb335c352c540f1a52efa3361cf3
https://doi.org/10.5617/jeb.4826
https://doi.org/10.5617/jeb.4826
Publikováno v:
IEEE Transactions on Biomedical Circuits and Systems. 10:533-544
The measurement of the biological tissue’s electrical impedance is an active research field that has attracted a lot of attention during the last decades. Bio-impedances are closely related to a large variety of physiological conditions; therefore,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78dd1bfedb256c12d312818f4d0070eb
https://doi.org/10.1109/tbcas.2015.2456242
https://doi.org/10.1109/tbcas.2015.2456242
Autor:
Simon Grant, Stig Ollmar
Publikováno v:
Melanoma Management. 3:93-96
Nevisense was developed according to European regulatory requirements as an adjunct tool for the detection of melanoma, and is duly CE marked as a medical device. Figure 1 shows early work with a prototype device under PC control (left), and the Nevi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6b967fec2875892ad4873cb9c3104a1
https://doi.org/10.2217/mmt-2015-0004
https://doi.org/10.2217/mmt-2015-0004
Publikováno v:
Journal of Electrical Bioimpedance
We determine the in-vivo dielectric properties—resistivity and relative permittivity—of living epidermis and dermis of human skin soaked with a physiological saline solution for one minute between 1 kHz and 1 MHz. This is done by fitting approxim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddaf67b3b8eda183510ac1e25bc6f03a
https://pubmed.ncbi.nlm.nih.gov/33584878
https://pubmed.ncbi.nlm.nih.gov/33584878
Autor:
Stig Ollmar, Richard Bayford
Publikováno v:
Physiological measurement. 38(6)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d37455b727434de5a38212aa0ed785e4
https://pubmed.ncbi.nlm.nih.gov/28530206
https://pubmed.ncbi.nlm.nih.gov/28530206
Publikováno v:
Physiological Measurement. 34:723-736
A methodology to determine dielectrical properties of human skin is presented and analyzed. In short, it is based on a mathematical model that considers the local transport of charge in the various layers of the skin, which is coupled with impedance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c7a442984358bbde94d5a8b0cee56ac
https://doi.org/10.1088/0967-3334/34/6/723
https://doi.org/10.1088/0967-3334/34/6/723
Publikováno v:
Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI). 4(4)
Background/aims: In previous studies we have shown that variations in the properties of the stratum corneum are reflected by alterations in electrical impedance. The aim of this study was to explore the ability of the electrical impedance technique t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b7c53b116eba414bde0b53c398969d
https://pubmed.ncbi.nlm.nih.gov/27332691
https://pubmed.ncbi.nlm.nih.gov/27332691
Publikováno v:
Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI). 3(4)
Background/aims: During previous studies on the electrical impedance of the skin, we formulated a set of four physical indices that could be used to distinguish between the cutaneous effects produced by different chemical irritants. We now employ the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fcd0dbce00790320743842918595591
https://pubmed.ncbi.nlm.nih.gov/27333585
https://pubmed.ncbi.nlm.nih.gov/27333585