Article
Nanoscience & Nanotechnology
Elmina Kabouraki, Vasileia Melissinaki, Amit Yadav, Andrius Melninkaitis, Konstantina Tourlouki, Theodoros Tachtsidis, Nikolaos Kehagias, Georgios D. Barmparis, Dimitris G. Papazoglou, Edik Rafailov, Maria Farsari
Summary: A series of organic-inorganic hybrid photoresists with enhanced laser-induced damage threshold have been developed for the fabrication of micro-optical elements. These photoresists are suitable for three-dimensional multiphoton lithography and nanoimprint lithography, showing potential for future mass production of MOEs.
Article
Biochemistry & Molecular Biology
Natalia Turek, Piotr Pala, Andrea Szpecht, Adrian Zajac, Teresa Sembratowicz, Tadeusz Martynkien, Marcin Smiglak, Katarzyna Komorowska
Summary: We propose a method to fabricate microstructures on the tip of an optical fiber using a UV soft-imprint process of a polymerizable ionic liquid-based optical resist. The process involves using an ionic liquid with UV-sensitive groups and non-hazardous propylene glycol as a liquid material for imprinting. The method is simple and can lead to the fabrication of diffraction gratings and a grism component for an optical fiber spectrometer.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Ting Li, Pei Yuan, Shufeng Li, Ke Li, Lianqing Zhu
Summary: Fiber Bragg grating (FBG) interrogator is a scientific instrument that indirectly monitors physical quantities by detecting the center wavelength of FBG. An arrayed waveguide grating (AWG), a fundamental part of the FBG interrogation system, is designed and fabricated for a photonic integrated FBG interrogation system with 12 channels, a 3 dB bandwidth of 2.23 nm, insertion loss of less than 5 dB, and crosstalk of -16.64 dB. The AWG has a wavelength resolution of 8 pm and a wavelength accuracy of 10.59 pm in the dynamic range of 0.8 nm, making it suitable for FBG interrogation systems.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Javier Elaskar, Francesca Bontempi, Philippe Velha, Rana M. Armaghan Ayaz, Lorenzo Tozzetti, Stefano Faralli, Fabrizio Di Pasquale, Claudio J. Oton
Summary: We present an interferometer-based multiplexed fiber Bragg grating (FBG) interrogator using silicon photonic technology. The photonic-integrated system includes various components integrated on a 6x8 mm² silicon chip, such as grating couplers, active and passive interferometers, a 12-channel wavelength-division-multiplexing (WDM) filter, and Ge photodiodes. The device showcases the advantage of integrated photonics, allowing the integration of different demodulation schemes in the same chip, enabling easy scalability without increasing dimensions or cost.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Yaxun Zhang, Xiaoxuan Wang, Xiaoyun Tang, Zhihai Liu, Yu Zhang, Chunyu Sha, Min Zhang, Wei Jin, Jianzhong Zhang, Libo Yuan
Summary: The paper introduces a photosensitive polymer-based micro-nano long-period fiber grating for refractive index sensing, which shows high sensitivity and stability according to experimental results.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Xuetong Zhou, Hon Ki Tsang
Summary: This paper describes a novel high coupling efficiency multimode waveguide grating coupler that utilizes a polysilicon overlay to optimize the directivity and mode-matching for different modes. Experimental results show significant improvement over previous designs and suggest potential applications in silicon photonic transceivers for mode-division multiplexed communications in multimode fibers.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Siming Weng, Pei Yuan, Lidan Lu, Dongliang Zhang, Lianqing Zhu
Summary: In this study, a novel silicon-based AWG was designed and fabricated as a critical component for fiber Bragg grating interrogation systems. By modifying the input waveguide with an MMI coupler, the AWG achieved higher demodulation precision and wider dynamic range. The optimized AWG exhibited excellent performance with low crosstalk, wide dynamic range, and high resolution, showing great potential for fiber Bragg grating interrogation.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Hao Sun, Bruno Taglietti, Yue Wang, Lawrence R. Chen
Summary: Bragg gratings (BGs) are widely used in microwave photonic signal processing and systems due to their customizable amplitude and phase responses. Waveguide BGs (WBGs) are compact and easily integrated with other components to build MWP systems. Subwavelength grating (SWG) waveguides and passive devices in silicon-on-insulator (SOI) have enabled the development of breakthrough devices based on anisotropic metamaterials.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Nicolas Crespo-Monteiro, Arnaud Valour, Victor Vallejo-Otero, Marie Traynar, Stephanie Reynaud, Emilie Gamet, Yves Jourlin
Summary: This paper introduces a method for direct micro-nanostructuring of ZrO2 layers using the sol-gel method, and presents a complete and suitable ZrO2 sol-gel method for achieving complex micro-nanostructures.
Article
Nanoscience & Nanotechnology
Shufeng Li, Pei Yuan, Ting Li, Ke Li, Lianqing Zhu
Summary: This article presents a 15-channel 400 GHz AWG based on silicon on insulator (SOI) substrate, which has good spectral characteristics and can be used as a spectral device in the fiber Bragg grating (FBG) interrogation system.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Lirong Cheng, Simei Mao, Xin Tu, H. Y. Fu
Summary: A novel dual-wavelength-band grating coupler was proposed and designed on a 220-nm-thick silicon-on-insulator, capable of coupling two wavelength bands simultaneously under surface-normal fiber placement. The device utilizes a dual-etch grating design for increased directionality and unique diffraction angle dispersion characteristics for the targeted wavelengths. The use of high numerical aperture fiber reduces angular sensitivity and increases coupling efficiency for the proposed dual-wavelength-band operation scheme.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Ran Zhang, Da Huang, Yuanyi Fan, Xiao Liu, Ze Liu, Jinkui Chu
Summary: This study proposes a new method for fabricating nanochannels using nanoimprint lithography, with silicon nitride as a bonding layer to achieve efficient bonding between nanochannels and PDMS microchannels. Experimental results show that the fabricated nanochannels have high accuracy and strength, meeting the expected quality of fabrication.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Sun Yuezhen, Yan Zhijun, Zhou Kaiming, Luo Binbin, Jiang Biqiang, Mou Chengbo, Sun Qizhen, Zhang Lin
Summary: The development of excessively tilted fiber gratings (Ex-TFGs) has provided a new type of sensing device with high refractive index sensitivity, low thermal crosstalk, and vector sensing properties. These gratings have unique advantages such as dual-peak resonances and exceptional orientation sensing capability. Due to their specific mode coupling behavior, Ex-TFGs have been used for various sensing applications, including polarization dependent torsion sensors, vector accelerometers, and low thermal crosstalk bio/chemical sensors.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Qingguo Song, Yuze Dai, Bolin Ye, Xiangpeng Xiao, Chengjun Huang, Chengbo Mou, Qizhen Sun, Lin Zhang, Zhijun Yan
Summary: The proposed silver-coated 45 degrees radiated tilted fiber grating (45 degrees RTFG) based interferometer is compact and suitable for optical fiber sensing. Experimental results show that the interferometer with a polarization extinction ratio of 11 dB has spectral visibility of 26 dB, and exhibits different spectral responses to temperature, strain, and twist.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Daivid Robert Fowler, Quentin Wilmart, Stephanie Garcia, Segolene Olivier, Bertrand Szelag
Summary: In this article, two strategies for designing a fiber grating coupler for coupling to optical fibers placed on the backside of the chip are presented. An all silicon O-band grating coupler and a hybrid silicon nitride/silicon O-band grating coupler are designed, fabricated, and measured, showing peak coupling efficiencies of -2.8 dB and -3.2 dB respectively.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Cell & Tissue Engineering
Sara Zigon-Branc, Marica Markovic, Jasper Van Hoorick, Sandra Van Vlierberghe, Peter Dubruel, Elise Zerobin, Stefan Baudis, Aleksandr Ovsianikov
TISSUE ENGINEERING PART A
(2019)
Review
Toxicology
Alessandra Natale, Koen Vanmol, Aysu Arslan, Sandra Van Vlierberghe, Peter Dubruel, Jurgen Van Erps, Hugo Thienpont, Matij Buzgo, Joost Boeckmans, Joery De Kock, Tamara Vanhaecke, Vera Rogiers, Robim M. Rodrigues
ARCHIVES OF TOXICOLOGY
(2019)
Article
Engineering, Electrical & Electronic
Agnieszka Gierej, Maxime Vagenende, Adam Filipkowski, Bartlotniej Siwicki, Ryszard Buczynski, Hugo Thienpont, Sandra Van Vlierberghe, Thomas Geernaert, Peter Dubruel, Francis Berghmans
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2019)
Article
Biochemistry & Molecular Biology
Birgit Stubbe, Arn Mignon, Heidi Declercq, Sandra Van Vlierberghe, Peter Dubruel
MACROMOLECULAR BIOSCIENCE
(2019)
Article
Polymer Science
Maxime Vagenende, Geert-Jan Graulus, Jasper Delaey, Jasper Van Hoorick, Francis Berghmans, Hugo Thienpont, Sandra Van Vlierberghe, Peter Dubruel
EUROPEAN POLYMER JOURNAL
(2019)
Article
Biochemistry & Molecular Biology
Liesbeth Tytgat, Lana Van Damme, Maria del Pilar Ortega Arevalo, Heidi Declercq, Hugo Thienpont, Heidi Otteveare, Phillip Blondeel, Peter Dubruel, Sandra Van Vlierberghe
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Article
Food Science & Technology
Ali Sedaghat Doost, Maryam Nikbakht Nasrabadi, Sayed Amir Hossein Goli, Marleen van Troys, Peter Dubruel, Nympha De Neve, Paul Van der Meeren
FOOD RESEARCH INTERNATIONAL
(2020)
Article
Biochemistry & Molecular Biology
Birgit Stubbe, Arn Mignon, Lana Van Damme, Karel Claes, Henk Hoeksema, Stan Monstrey, Sandra Van Vlierberghe, Peter Dubruel
Summary: Gelatin, chemically modified with different photo-crosslinkable moieties, shows potential for wound healing applications, with gelatin-methacrylamide being the most promising. The degree of substitution has a significant impact on mechanical properties and swelling capacity, with gelatin-pentenamide exhibiting lower initial biocompatibility.
MACROMOLECULAR BIOSCIENCE
(2021)
Article
Engineering, Biomedical
Lise De Moor, Jasper Smet, Magalie Plovyt, Bieke Bekaert, Chris Vercruysse, Mahtab Asadian, Nathalie De Geyter, Sandra Van Vlierberghe, Peter Dubruel, Heidi Declercq
Summary: This study explored the potential and feasibility of using spheroids containing capillary-like networks as prevascularized units for integration into the entire bioprinted construct.
Article
Energy & Fuels
Jonathan Lehmann, Andreas Wabbes, Enrique Miguelanez Gonzalez, Stijn Scheerlinck
Summary: The study focuses on the impact of power output variability from a solar plant on the levelized cost of hydrogen calculations, comparing historical and simulated power production methods. It specifically targets off-grid electrolyzers powered by PV solar plants.
Article
Biochemical Research Methods
Ingrid Amer Cid, Lenny Van Daele, Peter Dubruel, Kristiaan Neyts, Filip Strubbe
Summary: Understanding the adsorption of polymers onto particles is crucial for many technological and biomedical applications. This study investigates the use of single-particle electrophoresis to directly analyze the adsorption kinetics of cationic polymers onto anionic particles. The results show that this technique enables accurate measurement and comparison of the kinetics of polymer adsorption on the single-particle level.
Article
Biochemistry & Molecular Biology
Manon Minsart, Nicolas Deroose, Laurens Parmentier, Sandra Van Vlierberghe, Arn Mignon, Peter Dubruel
Summary: This research focuses on the development of hydrogel-based wound dressings with high mechanical strength and exudate absorption capacities. The synthesized AUP materials show high gel fractions and strong swelling degrees, as well as tunable mechanical properties. They exhibit higher swelling degrees and mechanical resistance compared to commercial dressings. The materials also show excellent biocompatibility and have the potential to compete with commercially available dressings.
MACROMOLECULAR BIOSCIENCE
(2023)
Review
Materials Science, Biomaterials
Nathan Carpentier, Luca Urbani, Peter Dubruel, Sandra Van Vlierberghe
Summary: Drug induced liver injury (DILI) is a major reason for drug withdrawal during drug development. Currently, there is a lack of reliable in vitro models that can mimic the liver environment and function. This review discusses different approaches for the development of liver models in tissue engineering.
BIOMATERIALS SCIENCE
(2023)
Article
Materials Science, Biomaterials
Lenny Van Daele, Babs van de Voorde, Robin Colenbier, Lobke De Vos, Laurens Parmentier, Louis Van der Meeren, Andre Skirtach, Ruslan I. Dmitriev, Peter Dubruel, Sandra Van Vlierberghe
Summary: Cardiovascular diseases are the leading cause of death worldwide. Poly(alkylene terephthalate)s (PATs) with longer alkyl chain lengths show potential for improving compliance in vascular graft materials. This study investigated the effects of polymer molar mass and alkyl chain length on the surface properties of spin-coated PAT films, as well as endothelial cell adhesion and proliferation. The results showed that higher molar mass and longer alkyl chain lengths increased surface roughness, while no significant trend was observed for wettability. All investigated PATs were non-cytotoxic and supported endothelial cell adhesion and growth, with some PATs even promoting angiogenic maturation.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Review
Materials Science, Biomaterials
Jasper Delaey, Lobke De Vos, Carina Koppen, Peter Dubruel, Sandra Van Vlierberghe, Bert Van den Bogerd
Summary: Currently, the treatment of corneal diseases caused by damage to the corneal endothelium requires a donor cornea. Researchers are investigating alternative approaches, such as tissue engineered scaffolds, to overcome the limited availability of donor tissue. This review provides an overview of the characteristics of different materials and discusses their suitability as scaffolds for corneal endothelial cells. It also proposes a consistent approach for future research in membrane characterization to enable a scientific comparison of different materials and membranes.
BIOMATERIALS SCIENCE
(2022)
