Article
Chemistry, Multidisciplinary
Giuseppe Cantarella, Mallikarjun Madagalam, Ignacio Merino, Christian Ebner, Manuela Ciocca, Andrea Polo, Pietro Ibba, Paolo Bettotti, Ahmad Mukhtar, Bajramshahe Shkodra, A. K. M. Sarwar Inam, Alexander J. Johnson, Arash Pouryazdan, Matteo Paganini, Raphael Tiziani, Tanja Mimmo, Stefano Cesco, Niko Munzenrieder, Luisa Petti, Nitzan Cohen, Paolo Lugli
Summary: A sustainable and green technology for fabricating electronics on fruit-waste derived paper substrate is reported, which can be used in smart agriculture and the Internet-of-Thing applications. By optimizing laser parameters, various electronic devices are realized, and the cellulose-based substrate allows for twofold strategies for electronics recycling. The results show the realization of green, low-cost and circular electronics with no waste creation and positive impact on the ecosystem.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
J. Michael Henderson, Nina Ljubojevic, Sevan Belian, Thibault Chaze, Daryl Castaneda, Aude Battistella, Quentin Giai Gianetto, Mariette Matondo, Stephanie Descroix, Patricia Bassereau, Chiara Zurzolo
Summary: Tunnelling nanotubes (TNTs) are specialized actin-based protrusions that bridge distant cells to facilitate direct intercellular communication and cargo transfer in both physiological and pathological contexts. Linear actin filament elongation induced by Eps8 and IRSp53 is shown to promote functional and stable TNT formation. A micropatterning approach shows that TNTs originate via actin polymerization rather than cell dislodgement and exceed the length of conventional filopodia. Inhibition of Arp2/3 activity promotes functional TNT formation due to enhanced actin filament polymerization and elongation, suggesting a shift from branched to linear actin. An interaction between Eps8 and the I-BAR domain protein IRSp53 promotes formation of functional TNTs with an increased lifetime. Arp2/3 inhibition leads to reduction of Eps8 interactions with proteins facilitating actin filament depolymerization and turnover. Inhibition of branched actin networks reveals the role of linear actin filament polymerization in the formation of functional tunnelling nanotubes.
Review
Chemistry, Physical
Andrey Baydin, Fuyang Tay, Jichao Fan, Manukumara Manjappa, Weilu Gao, Junichiro Kono
Summary: This article discusses the applications of carbon nanotubes in quantum technology. Carbon nanotubes possess one-dimensional electronic states, excitons, and phonons, which make them suitable for developing quantum devices with high operating temperatures. The article covers the fundamental properties of carbon nanotubes, their growth and purification methods, and methodologies for assembling them into structures that exhibit macroscopic quantum properties. Most importantly, recent developments and proposals for quantum information processing devices based on individual and assembled nanotubes are reviewed.
Article
Chemistry, Analytical
Joevonte Kimbrough, Lauren Williams, Qunying Yuan, Zhigang Xiao
Summary: This study successfully fabricated carbon nanotube field-effect transistors on a wafer scale using dielectrophoresis method, and tested their performance. It was found that 87% of the fabricated CNTFETs were functional, with 30% having an I-DS on/off ratio larger than 20 and 70% having a ratio lower than 20. The research provides an effective method for the wafer-scale fabrication of CNT electronic devices.
Article
Chemistry, Multidisciplinary
Qingyu Ye, Xinzhao Xu, Alessandro Paghi, Thomas Bamford, Benjamin R. Horrocks, Andrew Houlton, Giuseppe Barillaro, Stoichko Dimitrov, Matteo Palma
Summary: In this study, the formation of carbon nanotube (CNT)-based nanohybrids in aqueous solution is reported, where DNA-wrapped CNTs act as templates for PbS and CdS nanocrystals growth. Multiplexed photoresponsive devices with sensitivity to various illumination wavelengths were fabricated from these nanohybrids. The different photoresponses of the DNA-CNT, CdS-DNA-CNT, and PbS-DNA-CNT devices were attributed to varying operational mechanisms, with PbS-DNA-CNT devices showing the fastest response due to photoinduced charge transfer.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Weihong Huang, Yarong Wang, Yiming Zhang, Jiahao Zhu, Dexing Liu, Jiaxin Wang, Lingchong Fan, Rui Qiu, Min Zhang
Summary: Stretchable synaptic transistors with the ability to emulate neural signal transmission have been realized in this study, which can be applied to bionic memory sensors, soft robots, and skin electronics. The current reports about stretchable artificial synaptic transistors are limited, and further exploration is needed. The carbon nanotube synaptic transistors with intrinsic stretchability have successfully emulated the synaptic functions of biological synapses and exhibited excellent mechanical stretchability.
Article
Engineering, Electrical & Electronic
Zhao Li, Jianying Ouyang, Jianfu Ding
Summary: This work investigates the application potentials of devices based on a single-walled carbon nanotube (SWCNT) network and the factors influencing their performance, including network morphology, tube-tube junction resistance, tube diameter, and length. A network predictive model is proposed to extract the junction resistance, which is found to inversely scale with tube diameter.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Multidisciplinary Sciences
Sira Mogas-Diez, Eva Gonzalez-Flo, Javier Macia
Summary: Efforts have been made to build printable cellular devices for different purposes, using concentration of biological signals for information encoding in 2D circuits. By printing cellular circuits on paper surfaces, a feasible and reliable industrial production for multiple applications can be achieved.
NATURE COMMUNICATIONS
(2021)
Review
Chemistry, Analytical
Yixi Deng, Lei Liu, Jingyan Li, Li Gao
Summary: This paper focuses on the application of carbon nanotube field-effect transistor (CNT-FET) biochemical sensors in detecting biomarkers. It introduces the preparation, properties, and functional modification of CNTs, as well as the configuration and sensing mechanism of CNT-FETs. The latest progress in detecting nucleic acids, proteins, cells, gases, and ions based on CNT-FET sensors is summarized.
Article
Engineering, Electrical & Electronic
Zhao Li, Jianfu Ding, Jianying Ouyang, Patrick R. L. Malenfant
Summary: This study systematically compared the interaction of three fluorene-based copolymers with semiconducting single-walled carbon nanotubes (SWCNTs) in a toluene solution. The results showed that polymers containing semiconjugated pyridine units had a higher binding affinity to SWCNTs, and using flexible copolymers reduced the off-current in thin-film transistors by limiting bundling during network formation.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Physics, Applied
Xinzhao Xu, Zamaan Mukadam, Giuseppe Amoroso, Mark Freeley, Matteo Palma
Summary: This study demonstrates the fabrication of multiplexed single-walled carbon nanotube (SWCNT) devices with single-tube precision, where selected chiralities are separately immobilized and electrically measured. Through aqueous two-phase polymer systems and dielectrophoresis, (6,5) and (7,5) SWCNT species were isolated and precisely controlled for placement on prepatterned electrodes on a single chip.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Sabeen Fatima, Rabia Tahir, Syed Rizwan
Summary: This study presents a novel MXene flexible memory device with substrate-free growth in ambient conditions, which has attracted interest in current innovation due to its high nonvolatile storage, light weight, smart, portable, and better functioned memories. The synthesis of MXene sheets was confirmed through surface morphology, elemental and structural analysis. X-ray diffraction, Raman, and FTIR spectra showed the presence of TiO2 inside FE-Ti3C2Tx MXene, which contributed toward the ferroelectric behavior of MXene.
APPLIED PHYSICS LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Jianping Zou, Qing Zhang
Summary: Single-walled carbon nanotubes (SWCNTs) are considered a promising electronic material for the future of electronics, with sub-10 nm SWCNT-field effect transistors (FETs) outperforming Si-based FETs. Recent advances in SWCNT electronics focus on fundamental electronic structures, carrier transport mechanisms, and metal/SWCNT contact properties, highlighting subthreshold switching properties for low-power device operations. Challenges and prospects for future SWCNT-based electronics include material preparation, device fabrication, and large-scale ICs integration.
Article
Polymer Science
Xiaofeng Gong, Zengyong Chu, Guochen Li, Yinlong Tan, Qichao Dong, Tianjiao Hu, Zhenkai Zhao, Zhenhua Jiang
Summary: This research proposes an efficient shrinking method to fabricate carbon nanotube (CNT)-based stretchable electrodes. The electrode is a layer of anisotropic CNT wrinkling film coated on a latex balloon substrate (CNT@latex), which remains stable after 25,000 stretching cycles with 0-50% tensile strain and can survive up to 500% tensile strain. The highly conductive electrode can be used as the current collector of a stretchable Zinc-ion battery, maintaining an output voltage of 1.3V during the stretching process of 0-100%. The applications of the electrode in flexible triboelectric nanogenerators and Joule heating devices are also demonstrated, indicating their promising prospects in the field of stretchable electronic devices.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Brendan Mirka, Nicole A. Rice, Phillip Williams, Mathieu N. Tousignant, Nicholas T. Boileau, William J. Bodnaryk, Darryl Fong, Alex Adronov, Benoit H. Lessard
Summary: This study demonstrates that excess unbound polymer during semiconductor film fabrication is not necessarily detrimental to device performance, and removal of such polymers may not always be necessary. Simple solvent rinsing can reduce this loss. Additionally, a Machine Learning algorithm can be utilized for analyzing the surface characteristics of SWNT films.
Article
Mathematics, Applied
I. G. Kazantsev, U. L. Olsen, H. F. Poulsen, P. C. Hansen
Article
Mathematics, Applied
Silvia Gazzola, Per Christian Hansen, James G. Nagy
NUMERICAL ALGORITHMS
(2019)
Article
Mathematics, Applied
Per Christian Hansen, Yiqiu Dong, Kuniyoshi Abe
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS
(2019)
Article
Physics, Fluids & Plasmas
B. Madsen, M. Salewski, W. W. Heidbrink, L. Stagner, M. Podesta, D. Lin, A. V. Garcia, P. C. Hansen, J. Huang
Article
Computer Science, Artificial Intelligence
Nicolai Andre Brogaard Riis, Yiqiu Dong, Per Christian Hansen
Summary: A new model and iterative algorithm for handling uncertain view angles in CT imaging are proposed in this study. By incorporating a model discrepancy term and assuming independent uncertainties in view angles, the reconstruction error can be reduced and visual quality improved, compared to methods that ignore uncertainties.
JOURNAL OF MATHEMATICAL IMAGING AND VISION
(2021)
Article
Physics, Fluids & Plasmas
B. Madsen, J. Huang, M. Salewski, H. Jarleblad, P. C. Hansen, L. Stagner, J. Su, J. F. Chang, J. Fu, J. F. Wang, L. Z. Liang, G. Q. Zhong, Y. Y. Li, B. Lyu, H. Q. Liu, Q. Zang, Z. P. Luo, M. Nocente, D. Moseev, T. S. Fan, Y. M. Zhang, D. Yang, J. Q. Sun, L. Y. Liao
PLASMA PHYSICS AND CONTROLLED FUSION
(2020)
Article
Mathematics, Applied
Nicolai Andre Brogaard Riis, Yiqiu Dong, Per Christian Hansen
Summary: The study introduces a new reconstruction model and corresponding algorithm for computed tomography with uncertain measurement geometry, focusing on uncertain view angles and improving reconstruction by estimating these angles solely from the measured CT data. By quantifying uncertainty in view angles and utilizing a block-structure approach, the method is computationally efficient and generalizable to other cases of uncertain geometry. The joint image/angle reconstruction problem is non-convex, but the proposed method seems to avoid difficulties in existing algorithms and achieve reconstructions similar in quality to those with correct view angles.
Article
Mathematics, Applied
Bart S. van Lith, Per Christian Hansen, Michiel E. Hochstenbach
Summary: This research introduces two new algebraic reconstruction techniques based on Kaczmarz's method for solving noisy tomography problems. By stopping iterations based on an error gauge constructed from pairing standard down-sweep and up-sweep Kaczmarz's method, the new methods provide reconstructions with lower two-norm error compared to standard Kaczmarz with a statistical stopping rule.
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2021)
Article
Mathematics, Applied
Per Christian Hansen, Ken Hayami, Keiichi Morikuni
Summary: Unmatched pairs of forward and back projectors are common in large-scale X-ray CT computations. We propose a method of using preconditioned GMRES algorithms to handle the unmatched normal equations associated with an unmatched pair. These algorithms are simple to implement and are suitable for large-scale CT reconstruction problems with noisy data and unmatched projector pairs.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2022)
Article
Mathematics, Interdisciplinary Applications
Babak Maboudi Afkham, Yiqiu Dong, Per Christian Hansen
Summary: In this work, a Bayesian framework is proposed for reconstructing the boundaries of piecewise smooth regions in X-ray computed tomography (CT) problem. The framework quantifies the uncertainty of the predicted boundaries. The method directly detects the discontinuities from the data instead of reconstructing the entire image, reducing the dimension of the problem.
SIAM-ASA JOURNAL ON UNCERTAINTY QUANTIFICATION
(2023)
Article
Physics, Fluids & Plasmas
B. S. Schmidt, M. Salewski, D. Moseev, M. Baquero-Ruiz, P. C. Hansen, J. Eriksson, O. Ford, G. Gorini, H. O. Jarleblad, Ye Kazakov, D. Kulla, S. Lazerson, J. E. Mencke, D. Mykytchuk, M. Nocente, P. Poloskei, M. Rud, A. Snicker, L. Stagner, S. Aekaeslompolo
Summary: We calculate reconstructions of fast-ion phase-space distribution functions in fusion plasmas using synthetic projections. Different components and particle densities of fast-ion phase-space distribution functions originating from neutral beam injection at TCV and W7-X can be distinguished based on synthetic spectra of projected velocities. Additionally, we show that using a basis of slowing-down distribution functions is equivalent to regularization using slowing-down physics as prior information.
Article
Mathematics, Applied
Felipe Uribe, Yiqiu Dong, Per Christian Hansen
Summary: This paper investigates the application of the shrinkage horseshoe prior in edge-preserving settings and introduces its formulation. A Gibbs sampling framework is used to solve the hierarchical formulation of the Bayesian inverse problem, with one conditional distribution being high-dimensional Gaussian and the rest derived in closed form using a scale mixture representation of the heavy-tailed hyperpriors. Applications in imaging science demonstrate that our computational procedure is able to compute sharp edge-preserving posterior point estimates with reduced uncertainty.
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2023)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Per Christian Hansen, Jakob Sauer Jorgensen, Peter Winkel Rasmussen
Summary: This paper describes and illustrates four stopping rules relevant for CT reconstructions. These rules aim to balance the reconstruction error and the influence of noise from measurements in computations, and terminate iterations when a satisfactory reconstruction is achieved.
2021 21ST INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE AND ITS APPLICATIONS ICCSA 2021
(2021)
Article
Mathematics, Applied
Johnathan M. Bardsley, Per Christian Hansen
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2020)
Article
Mathematics, Applied
Yiqiu Dong, Per Christian Hansen, Michiel E. Hochstenbach, Nicolai Andre Brogaard Riis
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2019)
