Review
Biotechnology & Applied Microbiology
Jinlong Chang, Xuming Sun
Summary: Bioprinting, utilizing 3D printing technology, especially laser-induced forward transfer (LIFT), holds great potential in fabricating intricate biological structures with high precision and enhanced cell viability. LIFT enables the precise transfer of cells or bioinks onto a substrate, making it ideal for producing biomolecular microarrays and various tissues, including skin, blood vessels, and bone. Despite its advantages, there are still challenges that need to be addressed in this field.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Edvinas Skliutas, Danielius Samsonas, Arunas Ciburys, Lukas Kontenis, Darius Gailevicius, Jonas Berzins, Donatas Narbutas, Vytautas Jukna, Mikas Vengris, Saulius Juodkazis, Mangirdas Malinauskas
Summary: Multiphoton photopolymerisation (MPP), also known as 3D nanoprinting, was studied using a wavelength-tunable femtosecond laser. The influence of wavelength on the dynamic fabrication window (DFW) and the control over voxel aspect ratio were investigated. The results show that optimizing the wavelength can significantly improve the efficiency of 3D nanoprinting in various applications.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Chemistry, Physical
J. Smolik, P. Knotek, J. Schwarz, E. Cernoskova, P. Kutalek, V. Kralova, L. Tichy
Summary: (English Summary:)
New microlenses with potential applications in optics were successfully created on the surfaces of glasses in the (PbO)(x)(Ga2O3)(1-x) system. The most promising composition found was (PbO)(0.747)(Ga2O3)(0.253), which showed the highest thermal stability and lowest fragility factor. The microlenses' height increased with higher exposition time and laser power density, while the threshold value for their formation decreased significantly with prolonged exposure time.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Xinwei Wang, Jian Zhang, Xinliang Mei, Jieliang Miao, Xingsheng Wang
Summary: This study presents an effective method for printing reproducible and well-defined graphene oxide (GO) droplets through Laser-induced forward transfer (LIFT), which involves creating a cavity on microscope glass surface through laser ablation to facilitate the formation of a uniform GO film. Droplet printing using LIFT method with modified donor substrate and different pulse energies resulted in successful printing of droplets with relatively circular shape and limited debris. The study also demonstrated the feasibility of reusing the modified donor substrate for repetitive GO printing.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Richard Murray, Orla O'Neill, Eoghan Vaughan, Daniela Iacopino, Alan Blake, Colin Lyons, Dan O'Connell, Joe O'Brien, Aidan J. Quinn
Summary: This study reports a simple and scalable method for direct-write laser fabrication of 3D, porous graphene-like carbon electrodes from polyimide films. The method allows for the formation of high-quality surface laser-induced graphene (LIG) electrodes with integrated contact plugs to underlying metal layers. The results highlight the potential for integration of LIG-based sensor electrodes with semiconductor or roll-to-roll manufacturing.
Article
Engineering, Environmental
Lukai Wang, Junzong Feng, Yonggang Jiang, Di Lu, Jing Men, Yi Luo, Xin Wang, Jian Feng
Summary: An ultraviolet-assisted direct-write printing strategy has been proposed for fabricating polyorganosiloxane-based aerogels with tunable molecular triple-crosslinks, which exhibit outstanding nanoporous performances and are ideal materials for shape-dominated thermal insulation applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Optics
Qi Liu, Bin Xu, Yongnian Zhang, Xinwei Wang, Xinliang Mei, Xingsheng Wang
Summary: This study investigates the fabrication of conductive silver lines through a combination of LIFT printing and laser sintering using the same picosecond laser. By adjusting parameters and analyzing temperature effects, the optimal conductivity was achieved, demonstrating the feasibility and effectiveness of the developed method.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ruo-Zhou Li, Mingqing Yang, Lvjiu Guo, Ke Qu, Tong Jian, Ying Yu, Jing Yan
Summary: In this research, laser-induced forward transfer (LIFT) of nanosilica was successfully achieved using a lower-cost nanosecond laser with the addition of graphene oxide (GO) to enhance its light absorption. The study demonstrated the deposition of patterns with a minimum line width of 221 μm and the capability of creating patternable transparent displays. This LIFT-based technique offers a fast, flexible, and low-cost manufacturing method for scattering-based translucent screens or patterns for transparent displays.
Article
Biochemical Research Methods
Peng Liang, Lindong Shang, Yuntong Wang, Martin J. Booth, Bei Li
Summary: A new beam shaping laser induced forward transfer (BS-LIFT) technique was proposed for isolating complex-shaped cells. By combining beam shaping methods and laser induced forward transfer, successful transfer of cells with different shapes was achieved, providing a novel approach for the application of beam shaping techniques in cell isolation.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Optics
Yilin Shan, Xianmin Zhang, Gengchao Chen, Kai Li
Summary: This study adopts a laser-etched double groove structure on a silicon wafer to improve the printing resolution of LIFT, and finds that high-resolution lines can only be achieved at a specific viscosity. The issue of excessive line thickness fluctuations is addressed by using double pulses transfer.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Shu-Yu Liang, Yue-Feng Liu, Zhi-Kun Ji, Shen-Yuan Wang, Hong Xia, Hong-Bo Sun
Summary: Researchers have developed a femtosecond laser-induced forward transfer (FsLIFT) technology for programmable fabrication of high-resolution full-color perovskite quantum dot (PQD) arrays and arbitrary micropatterns. This technology does not require chemical reagent treatment or mask contact, ensuring the preservation of the photophysical properties of PQDs. The high-resolution PQD array achieved using FsLIFT can facilitate the development of diverse practical applications based on patterned PQDs.
Article
Metallurgy & Metallurgical Engineering
Li Ruo-zhou, Guo Lyu-jiu, Yang Ming-qing, Qu Ke, Yan Jing
Summary: Laser processing enables highly-controlled modification of plasmon metal nanostructures, providing the ability to fabricate optical films with specific absorption levels. By utilizing the laser-induced forward transfer (LIFT), silver nanomembranes with different morphologies of randomly distributed plasmon nanostructures were successfully produced, leading to well-controlled light absorption levels ranging from 11% to 81% over a broad range. The LIFT process demonstrated efficient and controlled fabrication with high-speed value.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Engineering, Manufacturing
Guohu Luo, Di Wu, Yu Zhou, Yongxiang Hu, Zhenqiang Yao
Summary: This study investigates the ejection behaviors of microdroplets in voxel-based laser-induced forward transfer (VB-LIFT). It is found that the ejection velocity increases linearly with laser fluence and is independent of voxel side length. The majority of laser energy is converted into internal energy, with only a small fraction converted into the kinetic energy of the ejected microdroplets. The relaxation of thermal compressive stress drives the detachment of the metal voxel from the donor glass to generate microdroplets.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Molong Han, Ashok Meghwal, Soon Hock Ng, Daniel Smith, Haoran Mu, Tomas Katkus, De Ming Zhu, Reiza Mukhlis, Jitraporn Vongsvivut, Christopher C. Berndt, Andrew S. M. Ang, Saulius Juodkazis
Summary: The controlled deposition of CoCrFeNiMo0.2 high-entropy alloy microparticles was achieved using laser-induced forward transfer (LIFT), allowing the control of microparticle morphology at different fluences.
Article
Optics
Di Wu, Guohu Luo, Yongxiang Hu, Yu Zhou, Meng Chen
Summary: This study investigates the printing behaviors of a single microdroplet in laser-induced forward transfer (LIFT) through experiments and simulations. Three printing behaviors are observed, including non-release deposition, single microdroplet deposition, and splash deposition. Weber number and nominal capillary number are proposed as the criteria for the low and high thresholds of single microdroplet deposition.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Optics
Ali Mohebi, Aymeric Le Gratiet, Riccardo Marongiu, Fabio Callegari, Paolo Bianchini, Alberto Diaspro
Summary: The combination of CIDS microscopy with a phasor map approach provides an intuitive view of sample organization and the presence of different molecular species in the illumination volume. The phasor map method has the potential to pave the way for the analysis of large data sets.
Article
Chemistry, Multidisciplinary
Josep Garcia, J. Marcos Fernandez-Pradas, Anna Llado, Pere Serra, Dobryna Zalvidea, Marcelo J. Kogan, Ernest Giralt, Macarena Sanchez-Navarro
Summary: By utilizing the unique photothermal properties of gold nanorods, combined with modifications of cell-penetrating peptide and nuclear targeting on proteins and AuNRs, and achieving spatiotemporal control of protein release within the safe biological window through near-infrared laser irradiation, cytosolic protein delivery has been successfully triggered.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Carmen Lopez-Santos, Daniel Puerto, Jan Siegel, Manuel Macias-Montero, Camilo Florian, Jorge Gil-Rostra, Victor Lopez-Flores, Ana Borras, Agustin R. Gonzalez-Elipe, Javier Solis
Summary: Highly anisotropic resistivity surfaces are produced in indium tin oxide (ITO) films by nanoscale self-organization upon irradiation with a fs-laser beam operating at 1030 nm. Two types of optimized structures are observed, showing different electrical properties depending on the fluence. The compositional changes induced by laser pulses accumulation condition the LIPSS evolution and result of the structuring process.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Purnima N. Manghnani, Valentina Di Francesco, Carlo Panella La Capria, Michele Schlich, Marco Elvino Miali, Thomas Lee Moore, Alessandro Zunino, Marti Duocastella, Paolo Decuzzi
Summary: By utilizing two-photon polymerization in microfluidic channels, anisotropic PEGDA micro-hydrogels in the 1-10 μm size-range can be fabricated, carrying payloads of various nature. This approach could support the fabrication of micro-hydrogels with well-defined morphology, stiffness, and surface properties for sustained release of therapeutic agents.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Optics
Colin J. R. Sheppard, Artemi Bendandi, Aymeric Le Gratiet, Alberto Diaspro
Summary: This article reexamines the measures of purity for 3D partially polarized fields, focusing on the separation of circularly and linearly polarized contributions and introducing a new degree of total linear polarization. Explicit expressions for the characteristic decomposition based on coherency matrix elements are presented, including the special case of an intrinsic coherency matrix. The parameterization of the coherency matrix in terms of ellipticity, and the directions of the ellipse normal and major axis are investigated. The discussion also includes phase consistency and provides a comprehensive collection of results regarding intrinsic polarization properties.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Polymer Science
Muhammad Waseem Ashraf, Aymeric Le Gratiet, Alberto Diaspro
Summary: Understanding the structural organization of chromatin is crucial for comprehending gene functions, with changes in chromatin organization being investigated through simulated solenoid models. Scattering signals demonstrate sensitivity to changes in solenoid parameters, suggesting potential applications for label-free polarized-light approaches at the nanoscale level.
Article
Biochemistry & Molecular Biology
Silvia Scalisi, Francesca Pennacchietti, Sandeep Keshavan, Nathan D. Derr, Alberto Diaspro, Dario Pisignano, Agnieszka Pierzynska-Mach, Silvia Dante, Francesca Cella Zanacchi
Summary: Single layer graphene (SLG) is an important nanomaterial with unique optical and electrical properties, making it a potential candidate for biomedical applications, biosensors, and tissue engineering. Studies have shown high cellular affinity for graphene, but the molecular mechanisms driving/regulating cellular adhesion and migration on SLG surfaces are not well understood. Research using super-resolution microscopy and cluster analysis has provided insights into the molecular distribution of adhesion proteins on SLG and revealed substrate-dependent interactions in different cell types.
Article
Optics
Colin J. R. Sheppard, Artemi Bendandi, Aymeric Le Gratiet, Alberto Diaspro
Summary: Depolarization is an important contrast mechanism in biological and medical imaging. This paper presents a historical review on polarization algebra, measures of depolarization, and purity spaces, and discusses their connections with the eigenvalues of the coherency matrix. The advantages of a barycentric eigenvalue space are outlined, and a new parameter called diattenuation-corrected purity is introduced. The use of a combination of eigenvalues of coherency matrices to specify the depolarization condition is proposed. The relationships between optical and polarimetric radar formalisms are also reviewed.
Article
Biochemistry & Molecular Biology
Barbara Storti, Benedetta Carlotti, Grazia Chiellini, Martina Ruglioni, Tiziano Salvadori, Marco Scotto, Fausto Elisei, Alberto Diaspro, Paolo Bianchini, Ranieri Bizzarri
Summary: By combining steady-state and ultrafast spectroscopy with gated STED imaging, this study demonstrates that F99S/M153T/V163A GFP is an efficient genetic reporter for STED imaging, with no excited state absorption at depletion wavelengths <600 nm and a long emission lifetime. This makes c3GFP a valuable alternative to more common, but less photostable, EGFP and YFP/Citrine mutants for STED imaging studies targeting the green-yellow region of the optical spectrum.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Narcis Vilar, Roger Artigas, Carlos Bermudez, Adam Thompson, Lewis Newton, Richard Leach, Marti Duocastella, Guillem Carles
Summary: Additive manufacturing (AM) is widely used for fabrication of complex-shaped parts, but the complex features on the surfaces pose challenges to optical measurement technologies. This study presents an optical system with a large numerical aperture and a wide field of view, capable of measuring AM parts in a single measurement without the need for lateral stitching to increase the field of view.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Camilo Florian, Pere Serra
Summary: Digital manufacturing has become the focus of the fourth industrial revolution, where technology blurs the lines between different disciplines. The advantages of digital manufacturing include easy design changes, continuous fabrication processes, and improved cost and speed compared to traditional methods. Laser-induced forward transfer (LIFT) is a versatile fabrication technique that can be used for additive manufacturing of various materials. By selecting appropriate laser parameters and considering material interactions, LIFT can be applied to fragile biological samples.
Article
Optics
Christos Alexandropoulos, Marti Duocastella
Summary: Various quantitative phase imaging techniques are capable of characterizing transparent and low-contrast samples without the need for dyes or probes. However, current implementations can be limited by the lack of suitable optical systems for fast and customizable focal plane selection. In this study, we combine acousto-optics with pulsed illumination to enable accurate and on-demand electronic defocus control for phase imaging, achieving diffraction-limited spatial resolution and high reconstruction fidelity. The system demonstrates feasibility by measuring dynamic events at rates as high as 100 phase maps per second, paving the way for quantitative phase imaging in various fields.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Blanca Mestre-Tora, Marti Duocastella
Summary: Researchers demonstrate a method that uses ultrasound waves to locally modulate the optical properties of a turbid medium, significantly enhancing light focusing and potentially enabling real-time control of light inside living tissue.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Ernest Marti Jerez, J. Marcos Fernandez Pradas, Pere Serra, Marti Duocastella
Summary: There are various strategies for fabricating microlenses, such as printing curable liquid prepolymers and laser-induced forward-transfer (LIFT) techniques, which have advantages in terms of integration, cost, and flexibility. However, the optical properties of the microlenses depend on the wettability of the liquid prepolymer, limiting their implementation in printing technologies. This study reports a strategy called print-n-release, which overcomes this limitation by depositing microdroplets on stretched elastomeric substrates, resulting in microlenses with enhanced contact angles and reduced focal lengths.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Acoustics
Mateu Colom, Pietro Ricci, Marti Duocastella
Summary: By combining wavefront sensing and Schlieren tomography, the rapid and direct quantification of 3D pressure fields can be achieved without the need for extensive calibration steps. By simultaneously capturing optical phase and intensity information using a Wavefront Sensor and Schlieren projections, 3D pressure fields can be reconstructed within a few seconds. The feasibility and accuracy of this approach have been demonstrated by comparing the results with calibrated hydrophone measurements and simulations.
