Article
Optics
Isabella De Bellis, Sara Nocentini, M. Giulia Delli Santi, Daniele Martella, Camilla Parmeggiani, Simone Zanotto, Diederik S. Wiersma
Summary: Research has demonstrated significant improvements in the mechanical stability of microstructured soft polymers through temperature control, expanding the potential applications of functional soft polymers in nanomanufacturing.
LASER & PHOTONICS REVIEWS
(2021)
Article
Materials Science, Multidisciplinary
Laurent Noel, Amine Khitous, Celine Molinaro, Hsiao-Wen Zan, Dominique Berling, Fabien Grasset, Olivier Soppera
Summary: This study successfully crystallizes TiO2 thin films from a sol-gel solution using near-infrared laser annealing, with gold nanoparticle arrays as nano-heaters. The presence of the anatase phase confirms the temperature increase achieved by the laser, and different analytical techniques support the findings. A numerical model highlights the role of nanoparticle coupling in the photothermal effect. Direct laser patterning and photolithography techniques are demonstrated. This fabrication method has promising applications in photonics, photocatalysis, and biosensing.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Optics
Hemadri Bandhu, P. Ashok, Durga Prasad Khandapu, Amit Verma
Summary: This research demonstrates a lithography-free method to fabricate VO2 devices using direct laser writing on vanadium thin films. The process simplifies fabrication compared to traditional methods and enables resistance switching driven by either voltage or temperature. The research also shows the potential of using these devices in circuit applications.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Hidayet Sariogullari, Ayse Z. Aroguz, Zelal Adiguzel
Summary: In recent years, there has been a growing interest in cell growth on patterned surfaces within tissue engineering. This study focused on preparing patterned scaffolds using Titanium (Ti) and polyvinyl chloride (PVC) and investigating their suitability for cell growth. The results showed that cell proliferation was observed on both patterned surfaces, with a higher proliferation rate on Ti-covered samples. Furthermore, it was found that the length of alkane groups in alkanethiols affected cell adhesion, with undecanethiol showing the highest level of cell proliferation. Scanning electron microscopy and optical microscopy analysis demonstrated significant cell proliferation on all prepared samples.
MOLECULAR BIOTECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Zeinab Chehadi, Michele Montanari, Nicoletta Granchi, Mehrnaz Modaresialam, Mathieu Koudia, Mathieu Abel, Magali Putero, David Grosso, Francesca Intonti, Marco Abbarchi
Summary: Sol-gel chemistry and nano-imprint lithography can be combined to fabricate nano-patterns with large vertical aspect ratio. ZrO2 combined with light emitting Eu3+ ions via soft-NIL forms large arrays of pillars, enabling efficient forward emission.
ADVANCED OPTICAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Miao Tang, Zhuoran Zhong, Chenfeng Ke
Summary: The exciting advancements in 3D-printing of soft materials are changing the landscape of materials development and fabrication. The direct ink writing (DIW) system is particularly attractive for chemists and materials scientists due to its mild fabrication conditions, compatibility with a wide range of organic and inorganic materials, and ease of multi-materials 3D-printing. This review aims to establish a clear connection between the molecular understanding of supramolecularly bound motifs and their viscoelastic properties at bulk, with a focus on extrudable and 3D-printable polymeric materials that utilize noncovalent interactions.
CHEMICAL SOCIETY REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Antonio Balena, Marco Bianco, Ferruccio Pisanello, Massimo De Vittorio
Summary: Thanks to its high sub-diffraction resolution, Two-Photon Lithography is the preferred lithographic technique for small feature sizes and complex 3D patterning. However, its fabrication times are longer than other techniques, limiting its adoption in industry. Combining it with holography approaches can increase its throughput and make it more suitable for industrial applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Arun Jaiswal, Sweta Rani, Gaurav Pratap Singh, T. Archana, Mahbub Hassan, Aklima Nasrin, Vincent G. Gomes, Sumit Saxena, Shobha Shukla
Summary: Chiral metasurfaces, which have the ability to control the polarization of electromagnetic waves, hold great potential in the development of ultrathin components for advanced photonics technologies. However, their complex fabrication processes have limited their growth and application. In this work, we utilized two-photon polymerization based lithography to fabricate carbon-based dielectric chiral metasurfaces in a single step, and also calculated their theoretical responses. This approach not only allows for the fabrication of arbitrary structures with subwavelength resolved features, but also has the potential for generating all-carbon metamaterials and 3D metasurfaces for various photonics and optical technologies.
Article
Engineering, Electrical & Electronic
Bo Zhou, Bo Su, Wurui Ta, Zenghui Yang, Junhu Meng
Summary: This paper presents a simple method for fabricating high-aspect-ratio PDMS microstructures by reducing interfacial adhesion through the cooling process. The effect of cooling on the topography, elastic property, and adhesion property of PDMS is studied, showing that air-cooled PDMS has lower adhesion compared to traditional oven-cooled PDMS. Application of this method successfully yielded PDMS microchannels with a depth of 200μm and an aspect ratio of 10.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Arpan Kumar Nayak, Thamizharasan Gopalakrishnan
Summary: This study demonstrates a facile sol-gel method to synthesize nanomaterials with different phases and crystal structures, which has remarkable importance for supercapacitors and solid-state supercapacitor devices, showing potential applications in energy storage devices.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shanshan Qin, Gaozhi Ou, Biao Wang, Zheyu Li, Rui Hu, Ying Li, Yunhuang Yang
Summary: This study reports a photolithography-free method for rapid fabrication of PDMS devices. By using a laser cutter to ablate a tape, a male photoresist mold can be obtained within 5 minutes by a simple heating-step. The method offers advantages of low input, simple operation procedure, and short fabrication time.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Applied
David Munoz-Rodriguez, Yamile Perez-Padilla, Alejandro Avila-Ortega, Jesus Alberto Barron-Zambrano, Cristian Carrera-Figueiras
Summary: A translucent coating based on polydimethylsiloxane and aminopropyltriethoxysilane was prepared by a sol-gel method for stir bar sorptive extraction, successfully extracting and preconcentrating organic compounds from aqueous and organic samples. The coating was characterized as homogeneous, relatively polar, and thermally and chemically stable.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
S. Wang, Z. Zhou, B. Li, C. Wang, Q. Liu
Summary: The New-Generation LDW system is a maskless, highly efficient, and cost-effective micro-/nano-fabrication tool that improves fabrication resolution through a new working principle of laser-matter non-linear interaction, exceeding diffraction limits and enabling any material to be used as resist materials, hence greatly expanding its usage scenarios. This new system has tremendous potential in fabrication of various nanodevices and nanostructures for different material systems.
MATERIALS TODAY NANO
(2021)
Article
Materials Science, Coatings & Films
Zeyu Ma, Xiaodong Zhang, Shan Lu, Hao Yang, Xiaodong Huang, Liguo Qin, Guangneng Dong
Summary: In this study, the rheology of PDMS was improved by adding crosslinkers and silica nanoparticles, allowing it to be printed using DIW technology to create flexible surfaces with textures. The results showed that the texture produced by the print path significantly reduced the coefficient of friction, providing a new strategy for preparing flexible and wearable devices.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Manar Mostafa, Mohamed F. El-Shahat, Mohamed El-Kinawy, Nabil El-Faramawy, Moritz Riede, Ghada Bassioni
Summary: This study investigates the thermoluminescence characteristics of chemically prepared monoclinic barium titanate. The results show that the thermoluminescence glow curve consists of 6 electron traps, with trap depths ranging from 0.94 to 1.40 eV and peak temperatures between 380.4 and 560.5 K. The study confirms the potential of barium titanate for beta dosimetry.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Biochemical Research Methods
Ana Gomez-Varela, Ricardo Gaspar, Adelaide Miranda, Juliane L. Assis, Rafael H. F. Valverde, Marcelo Einicker-Lamas, Bruno F. B. Silva, Pieter A. A. De Beule
Summary: In this study, fluorescence cross-correlation spectroscopy (FCCS) was utilized to investigate the assembly of nonviral gene delivery vehicles, revealing that the cationic lipid fraction and charge ratio between CLs and DNA are critical factors influencing the interaction between liposomes and DNA.
JOURNAL OF BIOPHOTONICS
(2021)
Article
Materials Science, Multidisciplinary
M. Aymerich, J. R. Vazquez de Aldana, D. Canteli, C. Molpeceres, E. Alvarez, C. Almenglo, M. T. Flores-Arias
Summary: This study establishes a roadmap for manufacturing capillary-model devices with good biocompatibility using laser pulses of different durations on glass substrates. Channels fabricated with nanosecond lasers have lower surface roughness and are more suitable for cell adhesion compared to those fabricated with picosecond and femtosecond lasers. A controlled post-thermal treatment is carried out to improve the biocompatibility and cell growth of channels fabricated with picosecond and femtosecond lasers.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Frederico Tremoco, Ana I. Gomez-Varela, Adelaide Miranda, Martin Lopez-Garcia, Ana G. Silva, Pieter A. A. De Beule
Summary: The study found that sample heating is an important issue that needs to be considered in experimental setups involving intense light illumination of AFM cantilevers, especially when conducting single molecule investigations.
RESULTS IN PHYSICS
(2022)
Article
Cell Biology
Chloe Turpin, Marie Laurine Apalama, Bastian Carnero, Alberto Otero-Cacho, Alberto P. Munuzuri, Maria Teresa Flores-Arias, Erick Velia, Olivier Meilhac, Emmanuel Bourdon, Ezequiel Alvarez, Philippe Rondeau
Summary: This study investigates the impact of glycation on the structure and ability of erythrocytes to alter endothelial cell function. Results show that glycation enhances oxidative stress and erythrophagocytosis by endothelial cells, leading to impaired endothelial cell function. These findings have important implications for understanding the mechanism of diabetic vascular complications.
Article
Biochemistry & Molecular Biology
Jose Nicolas Lopez-Canoa, Marinela Couselo-Seijas, Teba Gonzalez-Ferrero, Cristina Almenglo, Ezequiel Alvarez, Adrian Gonzalez-Maestro, Laila Gonzalez-Melchor, Jose Luis Martinez-Sande, Javier Garcia-Seara, Jesus Fernandez-Lopez, Bahij Kreidieh, Eva Gonzalez-Babarro, Jose Ramon Gonzalez-Juanatey, Sonia Eiras, Moises Rodriguez-Manero
Summary: The utility of biomarkers in characterizing atrial cardiomyopathy is unclear. In this study, the researchers aimed to evaluate the predictive ability of fibrosis and adiposity biomarkers in determining the presence of low-voltage areas (LVA) and recurrence of atrial fibrillation (AF) after pulmonary vein isolation (PVI). The results showed that a score incorporating AF pattern and fatty acid-binding protein 4 (FABP4) levels accurately predicted the presence of LVA and AF recurrence, while galectin-3 (Gal-3) provided no additional predictive value.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Optics
Ana Gomez-Varela, Raul Sanchez, Bastian Carnero, Luis Diaz-Gomez, M. Teresa Flores-Arias, Carmen Bao-Varela
Summary: Subaquatic indirect Laser-Induced Plasma-Assisted Ablation (SLIPAA) is proposed as a laser-based technique for glass processing. It utilizes a combination of ablation mechanism, shock waves, and cavitation bubbles, assisted by a water layer, to produce higher depth structures in glass with rectangular cross-sectional profiles.
Review
Cell Biology
Oksana Shevchuk, Svitlana Palii, Anastasiia Pak, Nuria Chantada, Nuria Seoane, Mykhaylo Korda, Manuel Campos-Toimil, Ezequiel alvarez
Summary: COVID-19 causes various vascular and blood-related reactions. Endothelial cells play a remarkable role in the acute response and may remain important beyond the acute phase. Research is needed to determine the vascular consequences of COVID-19 and the potential long-term effects on the cardiovascular system. Vessel-on-a-chip technology shows potential in studying COVID-19 pathophysiology and could be used for personalized follow-up of the disease and research of new drugs.
Article
Medicine, General & Internal
Maria Aymerich, Mercedes Riveira-Martin, Alejandra Garcia-Baizan, Marina Gonzalez-Pena, Carmen Sebastia, Antonio Lopez-Medina, Alicia Mesa-alvarez, Gonzalo Tardagila de la Fuente, Marta Mendez-Castrillon, Andrea Berbel-Rodriguez, Alejandra C. Matos-Ugas, Roberto Berenguer, Sebastia Sabater, Milagros Otero-Garcia
Summary: As the classification of Bosniak cysts heavily relies on the radiologists, automated tools based on radiomics can assist in diagnosing the lesions. This study aims to find radiomic features that can effectively classify benign-malignant Bosniak cysts in machine learning models. A CCR phantom was used with five CT scanners, and ARIA software was used for registration, Quibim Precision was used for feature extraction, and R software was used for statistical analysis. Robust radiomic features based on repeatability and reproducibility were selected, and excellent correlation criteria were imposed among different radiologists during lesion segmentation. The selected features were assessed for their classification ability in terms of benignity-malignity. In the phantom study, 25.3% of the features were found to be robust. In the inter-observer correlation (ICC) study on the segmentation of cystic masses, 82 subjects were selected, and 48.4% of the features showed excellent concordance. By comparing both datasets, 12 features were identified as repeatable, reproducible, and useful in classifying Bosniak cysts, laying the foundation for the development of a classification model. Using these features, the Linear Discriminant Analysis model achieved an 88.2% accuracy in classifying Bosniak cysts in terms of benignity or malignancy.
Article
Ophthalmology
Nery Garcia-Porta, Ana I. Gomez-Varela, Justo Arines-Piferrer
Summary: This study demonstrates the near visual performance of new elastomeric auto-adherent lenses for correcting presbyopia. The results show that these lenses provide similar visual quality as conventional trial ophthalmic lenses, offering an affordable solution for correcting presbyopia.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2023)
Article
Optics
Ana Isabel Gomez-Varela, Alejandro Fernandez-Rodriguez, Carmen Bao-Varela, Justo Arines
Summary: We propose a simple method for manufacturing high-quality elastomeric self-adherent lenses. Polydimethylsiloxane was used to create lenses, with ophthalmic and trial lenses of different base curves as master molds to achieve varying refractive powers. The manufactured lenses showed good optical quality with no aberrations. The results confirm the suitability and simplicity of this method for creating high-quality elastomeric lenses that can be self-adhered to ophthalmic lenses to add power and assist with presbyopia.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Biology
Paolo Niccolo Franco, Alejandra Garcia-Baizan, Maria Aymerich, Cesare Maino, Sofia Frade-Santos, Davide Ippolito, Milagros Otero-Garcia
Summary: Acute pelvic pain in female patients can have various causes, including gynaecological, gastrointestinal, and urinary tract pathologies. Ultrasound is usually the first-line diagnostic technique, followed by CT or MRI if needed.
Article
Biology
Maria Aymerich, Alejandra Garcia-Baizan, Paolo Niccolo Franco, Milagros Otero-Garcia
Summary: This study investigates the use of radiomic features and machine learning models to differentiate between chromophobe renal cell carcinomas (chRCCs) and renal oncocytomas (ROs). Three-dimensional segmentations of the lesions were performed and radiomic features were extracted. Logistic regression (LR) was found to be the best model, achieving an 83% precision.
Proceedings Paper
Education, Scientific Disciplines
Rosa Ana Perez-Herrera, Maria-Baralida Tomas, Beatriz Santamaria, Alba de las Heras, Clara Benedi-Garcia, Ana Gomez-Varela, Martina Delgado-Pinar, Veronica Gonzalez-Fernandez
Summary: This work provides an exhaustive data analysis of Ph.D. theses in the field of optics and photonics in Spain, revealing the influence of gender bias on unconscious perceptions and decisions. The results demonstrate a severe underrepresentation of women in the Ph.D. stage, particularly in technological and theoretical domains within the optics community. This asymmetry is linked to traditional stereotypes about health and social care and calls for further studies and measures to eliminate implicit gender-based associations in scientific disciplines.
PROCEEDINGS OF THE 2022 IEEE GLOBAL ENGINEERING EDUCATION CONFERENCE (EDUCON 2022)
(2022)
