Article
Chemistry, Multidisciplinary
Rosalia Moreddu, Vahid Nasrollahi, Panagiotis Kassanos, Stefan Dimov, Daniele Vigolo, Ali K. Yetisen
Summary: In this article, femtosecond laser writing is used to engrave microfluidic networks into commercial contact lenses, achieving rapid and precise processing. The ablation process and tear flow within microfluidic structures are evaluated experimentally and computationally. Functional microfluidic components such as flow valves, resistors, and two applications, a tear volume sensor and a tear uric acid sensor, are introduced, providing painless alternatives with reduced contamination risks.
Article
Engineering, Multidisciplinary
Annalisa Volpe, Udith Krishnan, Maria Serena Chiriaco, Elisabetta Primiceri, Antonio Ancona, Francesco Ferrara
Summary: This paper discusses the process of using rapid prototyping methods to fabricate polymeric labs-on-a-chip, highlighting the materials, technologies, and applications involved. The research demonstrates that the platform, with its low cost, customization options, and biological applications, is suitable for industrial exploitation and point-of-care applications.
Review
Biotechnology & Applied Microbiology
Hongyong Zhang, Guoguang Rong, Sumin Bian, Mohamad Sawan
Summary: With the increasing population, neurological disorders have become a growing concern. However, there is still a lack of effective therapies. Understanding the neuronal network (NoN) in the human brain is essential for understanding the pathology of neurological diseases. Recent advances in nanomaterials and micro-/nano-microfabrication have opened up new possibilities for ex vivo NoN studies. This review summarizes the latest advances in lab-on-chip microsystems for ex vivo NoN studies, focusing on advanced materials, techniques, and models.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
S. N. C. Santos, K. T. Paula, F. A. Couto, M. H. M. Facure, D. S. Correa, C. R. Mendonca
Summary: This study demonstrates, for the first time, the fabrication of Type II waveguides in transparent silica xerogel using femtosecond laser micromachining. Different modes of the waveguides were confirmed by finite elements simulation and guiding losses were observed to be similar to other materials.
Review
Nanoscience & Nanotechnology
Giacomo Corrielli, Andrea Crespi, Roberto Osellame
Summary: Integrated quantum photonics, utilizing technologies like femtosecond laser micromachining, is revolutionizing the field of quantum information by enabling the complete production of quantum systems components. In the past five years, FLM has significantly expanded its range of quantum applications and achieved several scientific breakthroughs.
Review
Chemistry, Analytical
Agne Butkute, Linas Jonusauskas
Summary: The rapid expansion of femtosecond laser technology has enabled significant advances in the 3D processing of transparent materials, leading to the production of high-precision structures like nanophotonic elements and microfluidic systems. This review discusses the underlying physical mechanism of material interaction with ultrashort pulses, its applications in 3D processing, and possible limitations. Further directions for field development, including synergies with other fs-laser-based manufacturing techniques, are highlighted.
Article
Materials Science, Multidisciplinary
Lucas K. Nolasco, Flavio P. Almeida, Gustavo F. B. Almeida, Juliana M. P. Almeida, Valmor R. Mastelaro, Kelly T. Paula, Cleber R. Mendonca
Summary: This paper focuses on studying the incubation process and the threshold fluence dependence on the fs-laser microstructuring of DLC films. Raman spectroscopy analysis indicates a decrease in sp(3) fraction and a more ordered phase after fs-laser processing of DLC samples.
Article
Chemistry, Analytical
Federico Sala, Petra Paie, Rebeca Martinez Vazquez, Roberto Osellame, Francesca Bragheri
Summary: This study investigates the impact of femtosecond laser micromachining parameters on surface roughness and the improvement of surface quality after thermal annealing. It was found that thermal polishing led to a significant reduction in roughness and improved imaging performance of embedded mirrors, maintaining a minimum feature size of reflected images below 5 micrometers.
Article
Materials Science, Multidisciplinary
S. Sudha Maria Lis, K. Rajasimha, Kapil Debnath, V. Krishna Chaitanya, B. N. Shivakiran Bhaktha
Summary: In this study, the sol-gel fabrication and characterization of SiO2-TiO2 one-dimensional photonic crystal (1DPhC) waveguides embedded with a low-index defect layer are presented. Femtosecond laser micromachining was used for microfabrication on multilayer structures, and the waveguiding characteristics of the fabricated structures were studied. The results show that the fabricated 1DPhC channel waveguides have efficient light guiding properties and are suitable for applications in optical integrated circuits.
Article
Physics, Multidisciplinary
Yutong Wang, Shaoyang Wang, Yujie Zhu, Hui Xu, Hao He
Summary: The study shows that femtosecond lasers have promising potential in skin remodeling and repairing, with focused laser activating skin components effectively and unfocused laser direct irradiation possibly causing significant immune responses in the deep dermis.
FRONTIERS IN PHYSICS
(2021)
Article
Chemistry, Analytical
Annalisa Volpe, Filippo Maria Conte Capodacqua, Valeria Garzarelli, Elisabetta Primiceri, Maria Serena Chiriaco, Caterina Gaudiuso, Francesco Ferrara, Antonio Ancona
Summary: This study demonstrates the ability to fabricate micrometric pore size membranes on polymeric and multilayer metallic substrates using a single femtosecond laser source and experimental setup, without the need for complex facilities. The flexibility of laser drilling was utilized to create microfilters with controlled distribution and pore sizes of 8 and 18 μm on metallic and polymeric substrates, respectively. Biocompatibility studies were conducted to evaluate the potential use of these laser-fabricated membranes in biological assays.
Article
Chemistry, Multidisciplinary
Anna Gabriella Ciriolo, Rebeca Martinez Vazquez, Gabriele Crippa, Michele Devetta, Aldo Frezzotti, Daniela Comelli, Gianluca Valentini, Roberto Osellame, Caterina Vozzi, Salvatore Stagira
Summary: This study investigates the dynamics of ultrafast laser-induced plasma expansion in a gas microjet. By focusing femtosecond laser pulses on a nitrogen jet, plasma was generated and its evolution was captured with nanosecond temporal resolution. The fabrication of the micronozzle using femtosecond laser micromachining allowed for high accuracy and three-dimensional capabilities, making it an ideal platform for developing glass-based microfluidic structures.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Helen E. Parker, Sanghamitra Sengupta, Achar Harish, Ruben R. G. Soares, Haakan N. Joensson, Walter Margulis, Aman Russom, Fredrik Laurell
Summary: Microfluidics, specifically droplet microfluidics, is a rapidly developing field that offers independent manipulation and high-throughput analysis of droplets. In this study, we propose an optofluidic Lab-in-a-Fiber scheme using a periscope fiber for stable and compact alignment. We integrate droplet microfluidics with laser-induced fluorescence detection, demonstrating the generation of monodisperse droplets and achieving a limit of detection of fluorescein. Furthermore, we show the device's capability in detecting reverse-transcription loop-mediated isothermal amplification (RT-LAMP) products for COVID-19 diagnostics, highlighting its potential as a point-of-care droplet digital RT-LAMP platform.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Stefan Kefer, Julian Zettl, Cemal Esen, Ralf Hellmann
Summary: This article introduces two new methods for micromachining rotational-symmetric sapphire workpieces using femtosecond laser. The first method can produce sapphire fibers with a diameter of 50 μm, while the second method can produce sapphire fibers with a diameter of 90 μm and a length of up to 20 cm. These methods provide an innovative all laser-based approach for the fabrication or microstructuring of sapphire optical devices, and offer a promising alternative to chemical processes.
Article
Materials Science, Multidisciplinary
Ona Balachninaite, Viktorija Tamuliene, Laurynas Eicas, Virgilijus Vaicaitis
Summary: This paper investigates the ablation of steel and copper using single pulses and bursts of infinite sequences of pulses with a 1 GHz intraburst repetition rate. A model of the ablation process is presented, showing good qualitative agreement between numerical and experimental ablation efficiencies.
RESULTS IN PHYSICS
(2021)
Article
Biochemical Research Methods
A. Salari, M. Navi, C. Dalton
Article
Biochemical Research Methods
Atefeh Ghazavi, David Westwick, Fenglian Xu, Pierre Wijdenes, Naweed Syed, Colin Dalton
JOURNAL OF NEUROSCIENCE METHODS
(2015)
Article
Neurosciences
B. Singh, A. Krishnan, I. Micu, K. Koshy, V. Singh, J. A. Martinez, D. Koshy, F. Xu, A. Chandrasekhar, C. Dalton, N. Syed, P. K. Stys, D. W. Zochodne
NEUROBIOLOGY OF DISEASE
(2015)
Article
Multidisciplinary Sciences
Pierre Wijdenes, Hasan Ali, Ryden Armstrong, Wali Zaidi, Colin Dalton, Naweed I. Syed
SCIENTIFIC REPORTS
(2016)
Article
Chemistry, Analytical
Alinaghi Salari, Colin Dalton
Review
Chemistry, Analytical
Alinaghi Salari, Maryam Navi, Thomas Lijnse, Colin Dalton
Editorial Material
Chemistry, Analytical
Alinaghi Salari, Colin Dalton
Article
Chemistry, Analytical
Ebenezer Owusu-Ansah, Colin Dalton
Article
Engineering, Electrical & Electronic
Thomas Lijnse, Kazim Haider, Catherine Betancourt Lee, Colin Dalton
Summary: This work demonstrates a fabrication process for cleanroom-free metal microneedles and quantifies their insertion profiles. The microneedles are created using a modified wirebonding process and inserted into porcine tissue to evaluate their efficacy. The microneedle arrays achieve high repeatability and reliability with lower insertion forces compared to other microneedle forms in the literature. The presented fabrication method allows for mass production of high-quality microneedle arrays that can reliably penetrate tissue samples.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2023)
Article
Multidisciplinary Sciences
Thomas Lijnse, Stirling Cenaiko, Colin Dalton
SN APPLIED SCIENCES
(2020)
Proceedings Paper
Engineering, Biomedical
Alinaghi Salari, Maryam Navi, Colin Dalton
MICROFLUIDICS, BIOMEMS, AND MEDICAL MICROSYSTEMS XV
(2017)
Proceedings Paper
Engineering, Biomedical
Alinaghi Salari, Maryam Navi, Colin Dalton
MICROFLUIDICS, BIOMEMS, AND MEDICAL MICROSYSTEMS XV
(2017)
Proceedings Paper
Biophysics
P. Wijdenes, C. Dalton, R. Armstrong, W. Zaidi, N. I. Syed
WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, 2015, VOLS 1 AND 2
(2015)
Proceedings Paper
Biophysics
M. T. Purdy, P. Wijdenes, W. Zaidi, N. I. Syed, C. Dalton
WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, 2015, VOLS 1 AND 2
(2015)
Proceedings Paper
Engineering, Biomedical
Alinaghi Salari, Colin Dalton
MICROFLUIDICS, BIOMEMS, AND MEDICAL MICROSYSTEMS XIII
(2015)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)