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Author Parrilla, M.; De Wael, K.
  Title Wearable self‐powered electrochemical devices for continuous health management Type A1 Journal article
  Year 2021 Publication Advanced Functional Materials Abbreviated Journal Adv Funct Mater
  Volume 31 Issue 50 Pages 2107042
  Keywords A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
  Abstract The wearable revolution is already present in society through numerous gadgets. However, the contest remains in fully deployable wearable (bio)chemical sensing. Its use is constrained by the energy consumption which is provided by miniaturized batteries, limiting the autonomy of the device. Hence, the combination of materials and engineering efforts to develop sustainable energy management is paramount in the next generation of wearable self-powered electrochemical devices (WeSPEDs). In this direction, this review highlights for the first time the incorporation of innovative energy harvesting technologies with top-notch wearable self-powered sensors and low-powered electrochemical sensors toward battery-free and self-sustainable devices for health and wellbeing management. First, current elements such as wearable designs, electrochemical sensors, energy harvesters and storage, and user interfaces that conform WeSPEDs are depicted. Importantly, the bottlenecks in the development of WeSPEDs from an analytical perspective, product side, and power needs are carefully addressed. Subsequently, energy harvesting opportunities to power wearable electrochemical sensors are discussed. Finally, key findings that will enable the next generation of wearable devices are proposed. Overall, this review aims to bring new strategies for an energy-balanced deployment of WeSPEDs for successful monitoring of (bio)chemical parameters of the body toward personalized, predictive, and importantly, preventive healthcare.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000694642500001 Publication Date 2021-09-09
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) Series Issue Edition
  ISSN 1616-301x ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited Open Access OpenAccess
  Notes Approved Most recent IF: 12.124
  Call Number UA @ admin @ c:irua:181306 Serial 8750
Permanent link to this record
 

 
Author Fatermans, J.; de Backer, A.; den Dekker, A.J.; Van Aert, S.
  Title Atom column detection Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 177-214
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract By combining statistical parameter estimation and model-order selection using a Bayesian framework, the maximum a posteriori (MAP) probability rule is proposed in this chapter as an objective and quantitative method to detect atom columns from high-resolution scanning transmission electron microscopy (HRSTEM) images. The validity and usefulness of this approach is demonstrated to both simulated and experimental annular dark-field (ADF) STEM images, but also to simultaneously acquired annular bright-field (ABF) and ADF STEM image data.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177531 Serial 6775
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Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Atom counting Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 91-144
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract In this chapter, a statistical model-based method to count the number of atoms of monotype crystalline nanostructures from high-resolution annular dark-field (ADF) scanning transmission electron microscopy (STEM) images is discussed in detail together with a thorough study on the possibilities and inherent limitations. We show that this method can be applied to nanocrystals of arbitrary shape, size, and atom type. The validity of the atom-counting results is confirmed by means of detailed image simulations and it is shown that the high sensitivity of our method enables us to count atoms with single atom sensitivity.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177529 Serial 6776
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Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Efficient fitting algorithm Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 73-90
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT)
  Abstract An efficient model-based estimation algorithm is introduced to quantify the atomic column positions and intensities from atomic-resolution (scanning) transmission electron microscopy ((S)TEM) images. This algorithm uses the least squares estimator on image segments containing individual columns fully accounting for overlap between neighboring columns, enabling the analysis of a large field of view. To provide end-users with this well-established quantification method, a user friendly program, StatSTEM, is developed which is freely available under a GNU public license. In this chapter, this efficient algorithm is applied to three different nanostructures for which the analysis of a large field of view is required.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177528 Serial 6778
Permanent link to this record
 

 
Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title General conclusions and future perspectives Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 243-253
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract This chapter provides an overview of statistical and quantitative methodologies that have pushed (scanning) transmission electron microscopy ((S)TEM) toward accurate and precise measurements of unknown structure parameters for understanding the relation between the structure of a material and its properties. Hereby, statistical parameter estimation theory has extensively been used which enabled not only measuring atomic column positions, but also quantifying the number of atoms, and detecting atomic columns as accurately and precisely as possible from experimental images. As a general conclusion, it can be stated that advanced statistical techniques are ideal tools to perform quantitative electron microscopy at the atomic scale. In the future, statistical methods will continue to be developed and novel quantification procedures will open up new possibilities for studying material structures at the atomic scale.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177533 Serial 6781
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Author Fatermans, J.; de Backer, A.; den Dekker, A.J.; Van Aert, S.
  Title Image-quality evaluation and model selection with maximum a posteriori probability Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 215-242
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract The maximum a posteriori (MAP) probability rule for atom column detection can also be used as a tool to evaluate the relation between scanning transmission electron microscopy (STEM) image quality and atom detectability. In this chapter, a new image-quality measure is proposed that correlates well with atom detectability, namely the integrated contrast-to-noise ratio (ICNR). Furthermore, the working principle of the MAP probability rule is described in detail showing a close relation to the principles of model-selection methods.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177532 Serial 6782
Permanent link to this record
 

 
Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Introduction Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 1-28
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177525 Serial 6784
Permanent link to this record
 

 
Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Optimal experiment design for nanoparticle atom counting from ADF STEM images Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 145-175
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract In this chapter, the principles of detection theory are used to quantify the probability of error for atom counting from high-resolution scanning transmission electron microscopy (HRSTEM) images. Binary and multiple hypothesis testing have been investigated in order to determine the limits to the precision with which the number of atoms in a projected atomic column can be estimated. The probability of error has been calculated when using STEM images, scattering cross-sections or peak intensities as a criterion to count atoms. Based on this analysis, we conclude that scattering cross-sections perform almost equally well as images and perform better than peak intensities. Furthermore, the optimal STEM detector design can be derived for atom counting using the expression of the probability of error. We show that for very thin objects the low-angle annular dark-field (LAADF) regime is optimal and that for thicker objects the optimal inner detector angle increases.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177530 Serial 6785
Permanent link to this record
 

 
Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Statistical parameter estimation theory : principles and simulation studies Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages 29-72
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract In this chapter, the principles of statistical parameter estimation theory for a quantitative analysis of atomic-resolution electron microscopy images are introduced. Within this framework, electron microscopy images are described by a parametric statistical model. Here, parametric models are introduced for different types of electron microscopy images: reconstructed exit waves, annular dark-field (ADF) scanning transmission electron microscopy (STEM) images, and simultaneously acquired ADF and annular bright-field (ABF) STEM images. Furthermore, the Cramér-Rao lower bound (CRLB) is introduced, i.e. a theoretical lower bound on the variance of any unbiased estimator. This CRLB is used to quantify the precision of the structure parameters of interest, such as the atomic column positions and the integrated atomic column intensities.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume (up) 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177527 Serial 6788
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