Article
Chemistry, Multidisciplinary
Georgii Pavliuk, Alexey Zhizhchenko, Oleg Vitrik
Summary: Recently, sensors using surface-enhanced Raman scattering (SERS) detectors combined with superhydrophobic/superhydrophilic analyte concentration systems have shown the ability to reach detection limits below the femto-molar level. However, the sensitivity of these sensors is limited by the concentration systems' inability to deposit the analyte on an area smaller than 0.01 mm². This article proposes a new approach to analyte enrichment by utilizing the effect of non-uniform electrostatic field on evaporating droplets, which, when combined with an optimized superhydrophobic/superhydrophilic concentration system, can reduce the deposition area by more than six times. This has the potential to improve the detection limit of plasmonic sensors to the attomolar level.
Article
Materials Science, Multidisciplinary
Sunita Ahlawat, Amarjeet Singh, Pranab K. Mukhopadhyay, Rashmi Singh, V. P. Dhamgaye, S. K. Dixit, K. S. Bindra
Summary: In this study, nanosecond laser texturing was used to create superhydrophobic surfaces for the enrichment and sensitive detection of analytes. By carefully selecting the laser processing parameters, superhydrophobic surfaces capable of maintaining the shape of a water droplet and depositing its entire content upon complete evaporation were prepared. Fluorescence spectroscopy of the residual spot detected Rhodamine 6G at an ultra-low concentration of 10-18 molL(-1) in a 5 μL droplet. These super-hydrophobic steel surfaces provided a four orders of magnitude enhancement in the lowest detectable concentration of Rhodamine 6G compared to unprocessed stainless steel substrates.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Kernius Vilkevicius, Algirdas Selskis, Evaldas Stankevicius
Summary: This study investigates the formation of gold nanostructures (nanobumps, nanocones, and nanojets) on the surface of metal using laser direct writing technique with different laser wavelengths. Experimental results show that shorter wavelength lasers provide a more precise and efficient fabrication process for controlling the properties of the nanostructures, making them highly suitable for practical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Ton Nu Quynh Trang, Nguyen Thi Phuong Trinh, Nguyen Tran Gia Bao, Vu Thi Hanh Thu
Summary: This study introduces a novel heterogeneous plasmonic and flexible model based on the co-existence of Ag nanospheres and Ag nanocubes to create high order plasmonic structures. The resulting hybrid shapes produce surface-enhanced Raman scattering signals that are much larger than those in single-plasmonic constructs. These plasmonic constructs, anchored onto a flexible polymethyl methacrylate-treated cellulose paper, demonstrate high sensitivity with low detection limit and good reproducibility. Furthermore, they exhibit selective detection for trace amounts of analytes, enhancing analyte identification efficiency. Rating: 9/10.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Nanoscience & Nanotechnology
Jian Yu, Jiangen Wu, Huan Yang, Pei Li, Jing Liu, Meng Wang, Jihong Pang, Chunbo Li, Can Yang, Kaichen Xu
Summary: In this study, a hybrid superhydrophobic/-philic microporous platform was designed and fabricated using a femtosecond laser to improve the performance of surface-enhanced Raman scattering (SERS) technology. The platform enables efficient detection of highly diluted target molecules with excellent uniformity and speed, making it suitable for outdoor handheld detection and automated inspection applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiangyun Guan, Guang Feng
Summary: In this paper, a patterned superhydrophobic/superhydrophilic SERS sensor was fabricated using femtosecond laser, achieving a detection sensitivity of R6G molecules as low as 10-13 M. This provides an efficient way for ultratrace molecular detection.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Hee-Kyung Na, Jisun Ki, Minh-Uyen Le, Kyoung-Shim Kim, Chul-Ho Lee, Tae Geol Lee, Jung-Sub Wi
Summary: The study developed a new type of SERS probe formed by enzyme reactions in the presence of Raman reporters, which achieved uniform and stable signal generation for biomolecule detection on chips over long periods. By applying this approach to a SERS-based immunohistochemistry assay, successful multiplexed protein detection was achieved in brain tissue from transgenic mice.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Paper & Wood
Dabum Kim, Kangyun Lee, Youngho Jeon, Goomin Kwon, Ung-Jin Kim, Chang-Sik Oh, Jeonghun Kim, Jungmok You
Summary: The immersion of a dried AuNRs/RC hydrogel film in an analyte solution protocol yields excellent SERS activity due to efficient analyte adsorption and an increase in hot spot density.
Article
Multidisciplinary Sciences
Mika Tateda, Yuto Iida, Godai Miyaji
Summary: This study investigates the reflection characteristics of a silicon grating surface upon irradiation with intense femtosecond laser pulses. The results reveal that the incidence angle, delay time, and polarization direction of the laser pulses have significant effects on the reflectivity. Surface ablation is observed under specific conditions of incidence angle and delay time. Additionally, femtosecond pulses can effectively modulate the properties of nonmetallic materials and have the potential to serve as a fundamental tool for exciting surface plasmon polaritons on nonmetallic materials.
SCIENTIFIC REPORTS
(2023)
Article
Nanoscience & Nanotechnology
Yunrui Han, Yingkuan Han, Jiayang Sun, Hong Liu, Xiaoming Luo, Yu Zhang, Lin Han
Summary: This study proposes a facilely developed superhydrophobic chip integrated with lotus-leaf effect and rose-petal effect (LLE-RPE) using laser-induced graphene (LIG) for surface-enhanced Raman scattering (SERS) detection. The chip achieves reliable ultrasensitive detection through dense and uniform aggregation of gold nanoparticles (AuNPs) in droplets. This system provides a simple approach for high-performance detection in various fields such as chemical analysis, environmental monitoring, biological analysis, and medical diagnosis.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Xiao Luo, Weijian Liu, Changhao Chen, Guochen Jiang, Xinyu Hu, Hongjun Zhang, Minlin Zhong
Summary: This study presents a high sensitivity and high uniformity SERS substrate prepared by femtosecond laser ablation in Argon, which shows potential for detecting common food additives.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yulia Borodaenko, Stanislav Gurbatov, Mikhail Tutov, Alexey Zhizhchenko, Sergei A. Kulinich, Aleksandr Kuchmizhak, Aleksandr Mironenko
Summary: The study demonstrates the single-step laser-assisted fabrication of anti-reflective hierarchical surface textures on silicon with a locally functionalized photoluminescent molecular nanolayer. The dual-scale surface textures exhibit remarkable light-absorbing properties and enhanced fluorescence yield, showing potential for innovative multifunctional sensing devices. pH sensing tests confirm the retention of molecular sensory properties on the nanotextured substrate, suggesting the liquid-assisted laser processing as a key technology for developing novel sensing devices.
Article
Optics
Jiao Geng, Liping Shi, Xiaoyu Sun, Wei Yan, Min Qiu
Summary: This article demonstrates controllable laser plasmonic nanopatterning using pre-structured artificial seeds. By utilizing these artificial seeds on bilayer ultrathin films, the problem of irregular patterns is solved, and large-scale nanogratings with extremely high uniformity are easily produced. Furthermore, the orientation of periodic nanostructures can be manipulated by controlling the light polarization.
LASER & PHOTONICS REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Chen Li, Lan Jiang, Jie Hu, Chenyang Xu, Zihao Li, Wei Liu, Xiaoming Zhao, Bingquan Zhao
Summary: A novel method for producing a superhydrophilic-superhydrophobic Janus fog collector is proposed in this study, which enables flexible and efficient fog capture. The experimental results show that the Janus foam exhibits excellent sensitivity and stability, making it suitable for the simultaneous collection and detection of fog.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Marie -Pier Lord, Michel Olivier, Martin Bernier, Real Vallee
Summary: Femtosecond fiber lasers have been a game changer in laser technology industry, providing high brightness ultrashort pulses in compact, affordable, and reliable setups. This study presents the first femtosecond fiber laser operating in the visible spectrum, expanding the range of applications for such sources. The all-normal dispersion regime passively mode-locked ring cavity is based on nonlinear polarization evolution in a single-mode Pr3+-doped fluoride fiber. The compressed pulses at 635 nm have a duration of 168 fs, a peak power of 0.73 kW, and a repetition rate of 137 MHz.
Article
Nanoscience & Nanotechnology
Stanislav O. Gurbatov, Vladislav Puzikov, Dmitriy Storozhenko, Evgeny Modin, Eugeny Mitsai, Artem Cherepakhin, Alexander Shevlyagin, Andrey Gerasimenko, Sergei A. Kulinich, Aleksandr A. Kuchmizhak
Summary: Recent progress has been made in the development of hybrid optical nanomaterials composed of dissimilar constituents, which has led to improved performance and functionality of devices used in optoelectronics, catalysis, medical diagnostics, and sensing. However, the combination of contrasting materials such as noble metals and semiconductors within individual hybrid nanostructures via a ready-to-use and lithography-free fabrication approach remains challenging.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Optics
Peichao Wu, Xiaowen Cao, Wubo Chu, Zhihao Chen, Hongbing Yuan, Rujia Wang, Songbai Yao, Saulius Juodkazis, Wenwu Zhang
Summary: With the rapid development of micro-optical applications, there is an increasing demand for micro-optical elements that can be made with minimal processing steps. This study reports on the fabrication of diamond Fresnel zone plates (FZPs) by femtosecond laser direct writing, which provide a compact solution for focusing and imaging. The fabricated FZPs showed well-defined geometry and excellent focusing and imaging ability, making them suitable for various potential applications.
Article
Chemistry, Multidisciplinary
Giedrius Balcas, Mangirdas Malinauskas, Maria Farsari, Saulius Juodkazis
Summary: This article provides an overview of a recent advancement in optical 3D printing, where crosslinkable materials and nanomaterial fillers are polymerized and guided to form final structures and new composites through high temperature annealing (HTA). By using ultrafast laser direct writing, 3D nano/micro-structures are defined and their precursor composition is tailored for subsequent tunability of final properties during the HTA process at temperatures between 750-1500 degrees C. This method takes advantage of efficient pyrolysis and calcination, facilitated by the large surface-to-volume ratio conditions, to enable chemical exchange between glass/ceramic and surrounding materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jaworski C. C. Capricho, Tzu-Ying Liao, Boon Xian Chai, Ahmed Al-Qatatsheh, Jitraporn (Pimm) Vongsvivut, Peter Kingshott, Saulius Juodkazis, Bronwyn Louise Fox, Nishar Hameed
Summary: This study demonstrates the potential of macroradical epoxies as surface coating materials, with the use of magnets during polymerization. The magnetically oriented and stable radicals in the polymer backbone render the coatings antimicrobial.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Konstantin L. Timofeev, Sergei A. Kulinich, Tamara S. Kharlamova
Summary: This study focuses on the effect of NH2 modification of UiO-66 on its structure and functional properties. UiO-66-NH2 samples with different contents of aminoterephthalate linkers were successfully prepared. The results show that the specific surface area and the fraction of micropores in UiO-66-NH2 samples decrease with an increase in the aminoterephthalate content. At the same time, the total number of basic sites in UiO-66-NH2 samples increases proportionally with the aminoterephthalate content, but a noticeable decrease in the total number of basic sites and an increase in their strength are observed with higher aminoterephthalate content.
Article
Chemistry, Multidisciplinary
Charitha Weerasuriya, Soon Hock Ng, William Woods, Tom Johnstone, Pranciskus Vitta, Laila Hugrass, Saulius Juodkazis
Summary: Color plays a significant role in human activities and affects the circadian cycle and decision making process. The subjective nature of color perception makes it vital to study human judgment under different colored illuminations. This study developed necessary instruments to control LED lamps with red, green, blue, and amber colors for MEG brain scans. A software was also developed to generate various colors and predefined white light combinations using RGBA color pallets. The feasibility of using LED lamps with MEG brain scanners has been validated for biomedical and psychological experiments.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Analytical
Georgii Pavliuk, Alexey Zhizhchenko, Oleg Vitrik
Summary: This article presents a new method for microdroplet manipulation using non-uniform electrostatic fields. By embedding an electrode array in a dielectric planar superhydrophobic substrate, controlled and high-speed movement as well as coalescence of microdroplets can be achieved. This approach has a simple planar geometry, low manufacturing cost, and has great potential for applications in chemical technology and advanced sensors.
Article
Engineering, Biomedical
Anastasiia V. V. Shabalina, Sergey G. G. Anikeev, Sergei A. A. Kulinich, Nadezhda V. V. Artyukhova, Vitaly V. A. Vlasov, Maria I. I. Kaftaranova, Valentina N. N. Hodorenko, Evgeny V. V. Yakovlev, Evgeny A. A. Pesterev, Anna V. V. Lukyanenko, Mikhail N. N. Volochaev, Sofiya Pakholkina, Oibek Mamazakirov, Victor V. V. Stolyarov, Anatolii V. V. Mokshin, Victor E. E. Gunther
Summary: TiNi alloys are widely used in implant fabrication, but there is still a need for combined porous-monolithic structures with good biocompatibility, corrosion resistance, and mechanical durability. In this study, new porous-monolithic TiNi materials were prepared by sintering TiNi powder onto TiNi plates and surface modification with a high-current pulsed electron beam. The materials showed improved corrosion resistance, good biocompatibility, and potential for cell growth. These materials have promise as new-generation implants for rib endoprostheses.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Engineering, Biomedical
Tatiana Zamay, Sergey Zamay, Natalia Luzan, Victoriya Fedotovskaya, Albert Masyugin, Fyodor Zelenov, Anastasia Koshmanova, Elena Nikolaeva, Daria Kirichenko, Dmitry Veprintsev, Olga Kolovskaya, Irina Shchugoreva, Galina Zamay, Ivan Lapin, Anna Lukyanenko, Andrey Borus, Alexander Sukhachev, Mikhail Volochaev, Kirill Lukyanenko, Alexandr Shabanov, Vladimir Zabluda, Alexey Zhizhchenko, Aleksandr Kuchmizhak, Alexey Sokolov, Andrey Narodov, Vladimir Prokopenko, Rinat Galeev, Valery Svetlichnyi, Anna Kichkailo
Summary: Magneto-mechanical microsurgery (MMM) with magnetic nanodisks modified with cancer-recognizing molecules is a promising method for radical tumor resection at a single-cell level. The use of low-frequency alternating magnetic fields (AMF) allows for remote control and effective destruction of tumor cells. By characterizing and applying magnetic nanodisks with a three-layer structure (Au/Ni/Au) and DNA aptamer AS42 (AS42-MNDs) on the surface, MMM has shown significant reduction in tumor cells.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Engineering, Biomedical
Sergey G. Anikeev, Maria I. Kaftaranova, Valentina N. Hodorenko, Stanislav D. Ivanov, Nadezhda V. Artyukhova, Anastasiia V. Shabalina, Sergei A. Kulinich, Grigory V. Slizovsky, Anatolii V. Mokshin, Victor E. Gunther
Summary: In this study, a TiNi-alloy-based wire with the shape-memory effect was successfully prepared for compression clips used in surgery. The composition, structure, and properties of the wire were investigated using various techniques. The wire was found to consist of B2 and B19 ' phases along with secondary-phase particles of Ti2Ni, TiNi3, and Ti3Ni4. The surface oxide layer enhanced biocompatibility and protein molecule adhesion. Overall, the obtained TiNi wire exhibited suitable martensitic, physical, and mechanical properties for being used as an implant material. Medical experiments involving 46 children showed that the use of such clips improved the surgical treatment outcomes of children with double-barreled enterostomies.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Physics, Applied
Ran-Ran Xie, Han Zhu, Ruofei Xing, Lingrui Chu, Zhuoqun Wang, Ruyi Xia, Wenxiao Zhao, Yuechen Jia, Yanxue Chen, Saulius Juodkazis, Feng Chen
Summary: This study investigates the modulation of crystallinity and morphology of vanadium dioxide thin film using femtosecond laser direct writing. The research explores the impact of femtosecond laser conditions on the evolution of nano/micro-structures and demonstrates the ability to draw a multi-color image on a VO2 thin film. This work provides a new method for producing complex integrated multi-functional devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Subham Ranjan, Meguya Ryu, Ryota Morioka, Shuji Kamegaki, Soon Hock Ng, Daniel Smith, Jitraporn Vongsvivut, Mark J. Tobin, Saulius Juodkazis, Junko Morikawa, Satoshi Takamizawa
Summary: A unique scissor-like two-directional ferroelastic deformation was achieved in organic crystals, shedding light on the understanding of multidirectional deformations in organic compounds. The study also revealed a correlation between the anisotropic structural arrangement and the difference in thermal diffusivity and mechanical behavior.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Hsin-Hui Huang, Saulius Juodkazis, Eugene G. Gamaly, Vladimir T. Tikhonchuk, Koji Hatanaka
Summary: This study analyzes the processes produced by the interaction of two subsequent ultra-short laser pulses with a water flow, and finds that this interaction generates strong THz pulses and enhanced X-ray emission. It is demonstrated that these emissions are produced by the interaction of a main laser pulse with liquid water ejected from the surface by a pre-pulse, resulting in the acceleration of energetic electron beams. This scheme enables efficient energy conversion in THz pulses.
Article
Materials Science, Multidisciplinary
Shuji Kamegaki, Daniel Smith, Meguya Ryu, Soon Hock Ng, Hsin-Hui Huang, Pegah Maasoumi, Jitraporn Vongsvivut, Daniel Moraru, Tomas Katkus, Saulius Juodkazis, Junko Morikawa
Summary: A four-polarisation camera was used to map the absorbance of olivine micro-grains before and after high-temperature annealing. It was found that high-temperature annealing caused magnetization of olivine xenoliths. Different operating modes of the polariscope were used to validate the three-point fit method for analyzing the birefringence and absorbance of the samples in transmission and reflection modes.
Article
Optics
K. Bronnikov, S. Gladkikh, E. Mitsai, E. Modin, A. Zhizhchenko, S. Babin, A. Kuchmizhak, A. Dostovalov
Summary: This study observes highly regular laser-induced periodic surface structures (LIPSSs) on magnetron-sputtered amorphous germanium (a-Ge) films under near-IR femtosecond laser exposure. The formation of these regular structures is explained by the excitation and interference of surface waves at the interface of photoexcited Ge. The ablation-free formation scenario involves laser-driven oxidation of the Ge followed by ultra-clean sublimation of the oxide.
OPTICS AND LASER TECHNOLOGY
(2024)
