Article
Biophysics
Qing Gao, Weihong Wang, Xiaogang Li, Yuchao Li, Pietro Ferraro, Xingyuan Jiao, Xiaoshuai Liu, Yao Zhang, Baojun Li
Summary: The study demonstrates a method for constructing endogenous micropumps by extracting nuclei from red blood cells, making them inherently and completely biocompatible. The micropumps are driven by a scanning optical tweezing system, allowing precise control of microflows to navigate nanoparticles and cells to target destinations. The targeted transport of functionalized micro/nanoparticles, followed by dynamic mixing in microliter blood samples, holds promise for enhancing target binding efficiency and improving the sensitivity and speed of biological assays in vivo. Additionally, multiplexing by simultaneously driving an array of multiple nuclei confirms the potential of micropumps as a bio-friendly high-throughput in vivo platform for blood disease treatment, microenvironment monitoring, and biomedical analysis.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Multidisciplinary Sciences
Kenji Nishizawa, Shao-Zhen Lin, Claire Chardes, Jean-Francois Rupprecht, Pierre-Francois Lenne
Summary: Biological tissues acquire reproducible shapes through dynamic cell behaviors, particularly the remodeling of cell-cell contacts. This study developed a technique to manipulate stress patterns on these contacts in the early epithelium of Drosophila embryos and found that Myosin -II activity responds to junction strain rate, facilitating junction shrinkage. These findings provide insights into the efficient deformation of cell-cell contacts in vivo and reveal the mechanosensitive features of their remodeling.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Pavana Siddhartha Kollipara, Zhihan Chen, Yuebing Zheng
Summary: Optothermal manipulation is a versatile technique that combines optical and thermal forces to control micro-/nanoparticles and biological entities. It overcomes the limitations of traditional optical tweezers and has a wide range of applications in biology, nanotechnology, and robotics. However, there are current challenges in experimental and modeling aspects, which need to be addressed for further advancements in this field.
Article
Optics
Mohsen Samadi, Pooya Alibeigloo, Abolfazl Aqhili, Mohammad Ali Khosravi, Farahnaz Saeidi, Shoaib Vasini, Mostafa Ghorbanzadeh, Sara Darbari, Mohammad Kazem Moravvej-Farshi
Summary: Plasmonic tweezers are indispensable tools for manipulating micro and nano-objects with high precision, utilizing surface plasmon technology to trap particles beyond the diffraction limit. Trapping-potential landscape can be reconfigured by designing plasmonic nanostructures.
OPTICS AND LASERS IN ENGINEERING
(2022)
Review
Biochemistry & Molecular Biology
Malte Kellermann, Felix Scharte, Michael Hensel
Summary: Pathogenic intracellular microorganisms manipulate host cells to create niches for survival and replication. This review focuses on the manipulation of organelle compartments by pathogens and highlights the specific interactions of different pathogens with host cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Nanoscience & Nanotechnology
Weina Zhang, Mingcong Wen, Pu Liu, Guowei Yang, Hongxiang Lei
Summary: Metal nanowires are difficult to manipulate optically due to their high absorption and scattering characteristics, but a microsphere-assisted indirect optical manipulation method has been proposed in this study. By actuating a microsphere to generate a microvortex, a single Ag nanowire can be precisely rotated and oriented without direct interaction between the light and the nanowires. This method is simple, general, and has great significance for the fabrication of optoelectronic nanodevices.
Article
Chemistry, Physical
Marco Manca, Chi Zhang, Rafael Vasconcelos de Melo Freire, Frank Scheffold, Stefan Salentinig
Summary: This study investigates the colloid transformations of triolein droplets triggered by pancreatic lipase and pH through optical micromanipulation, microfluidics, polarized optical video microscopy, and small-angle X-ray scattering (SAXS). The findings show that the droplets undergo surface roughening and overall volume changes during digestion, and multiple structures coexist during the process. The results provide insights into the phase transformations inside emulsion droplets during triglyceride digestion and have implications for the design of advanced food emulsions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Physical
Xixi Chen, Yanan Zhao, Yao Zhang, Baojun Li, Yuchao Li, Lingxiang Jiang
Summary: This article provides an overview of the important role of optical manipulation in soft matter research, discussing the optical mechanisms governing the interaction between light and soft matter materials. It also explores the wide range of applications and future prospects that arise from the collaboration between optical manipulation and soft matter materials in emerging fields.
Article
Multidisciplinary Sciences
Tobias F. Bartsch, Camila M. Villasante, Felicitas E. Hengel, Ahmed Toure, Daniel M. Firester, Aaron Oswald, A. J. Hudspeth
Summary: In high-speed single-molecule experiments, tethering proteins with force probes can avoid nonspecific interactions, but dissipate rapidly exerted forces through long linkers; due to the high frequency of mammalian hearing, short tethers are required for single-molecule experiments.
SCIENTIFIC REPORTS
(2021)
Article
Nanoscience & Nanotechnology
Ramin Jamali, Farzaneh Nazari, Azadeh Ghaffari, Sabareesh K. P. Velu, Ali-Reza Moradi
Summary: The study explores the use of speckle tweezers (ST) to manipulate low index micro-particles by repelling them from high intensity regions to lower intensity regions for local confinement. The experiments validate the method and show that ST can also manipulate nanoparticle (NP)-loaded liposomes, enabling collective manipulation of drug micro-containers.
Article
Optics
Zijie Zhao, Jianping Xia, Tony Jun Huang, Jun Zou
Summary: This Letter presents a ring-shaped photoacoustic tweezers capable of manipulating micron-sized particles. By illuminating an absorptive liquid medium with a pulsed laser beam, acoustic radiation force and vaporization repulsion are generated, enabling continuous and versatile movement of single or multiple particles. The tweezers demonstrate interactions between particles, including separation, attachment, and grouping, combining the advantages of optical and acoustic tweezers.
Article
Optics
Zhiyong Gong, Tianli Wu, Xixi Chen, Ping Wang, Jinghui Guo, Yuchao Li, Baojun Li
Summary: Mitochondria play a crucial role in neuronal functions and energy metabolism, aiding in the understanding of neurodegenerative diseases. The use of scanning optical tweezers enables stable trapping and precise transport of neuronal structures, providing an optical approach to controlling organelles in a complex biological environment.
JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Xiaoting Zhao, Yang Shi, Ting Pan, Dengyun Lu, Jianyun Xiong, Baojun Li, Hongbao Xin
Summary: The TOT technique allows for in situ single-cell surgery and manipulation of intracellular organelles without interfering with neighboring cells, enabling targeted gene delivery and providing a new approach for understanding cellular processes at a subcellular level.
Article
Optics
Aleksandra K. Korzeniewska, Slawomir Drobczynski
Summary: We propose a modified method for measuring liquid viscosity in an optical tweezer system. The method has been theoretically and experimentally validated and allows for quick measurements without occupying much space. Additionally, the use of a camera enables other measurements in the same sample, such as in the field of molecular biology. The presented method can measure liquid viscosities up to 2.5 mPa * s.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Weina Zhang, Hongxiang Lei, Liyun Zhong, Wenjie Liu, Juan Li, Yuwen Qin
Summary: Optical manipulation of metal nanowires is crucial for optoelectronic nanosystems, but their strong absorption or scattering properties pose challenges. In this study, precise manipulation of a single Ag nanowire was achieved using an optical scattering force. The forces and torques exerted on the nanowire were analyzed and quantitatively calculated, providing insights into the manipulation mechanism. This scattering-force-based method is stable and applicable for nontransparent structures.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Hang Dong, Zhixin Sun, Jingyi Li, Yahui Li, Wei Zhang, Guangyong Jin
Summary: This paper calculates thermal stresses and adsorption forces to determine laser cleaning conditions and establishes relevant models. Experimental results show that the removal effect is better with increasing nanosecond pulse delay, with the best effect achieved at 600 milliseconds pulse delay. Based on the findings, the mechanisms of oxide film removal involve thermal stress against adsorption and plasma shock wave breaking the oxide layer.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Junjie Zhang, Wenjun Li, Bingtao Li, Zheng-Da Hu, Jicheng Wang, Feng Zhang, Lei Wang
Summary: A multilayer thin film device structure based on Tamm plasmons is proposed for high-performance near-infrared hot electron photodetectors. By optimizing the device structure parameters, high responsivity detection can be achieved.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hong Huang, Zhiguang Han
Summary: This paper proposes a new ghost imaging reconstruction method using ordered orthogonal Hadamard derived speckle as the illumination speckle series, and introduces the alternating direction multiplier method to improve the imaging performance. The evaluation results show that the method can achieve high-quality reconstructed images under low sampling conditions.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Moritsugu Sakamoto, Yuki Ono, Kohei Noda, Tomoyuki Sasaki, Nobuhiro Kawatsuki, Masayuki Tanaka, Hiroshi Ono
Summary: The effect of wavelength and polarization of illuminating light in polarization imaging for birefringent objects placed behind a scattering structure was experimentally investigated. The result shows that the spatial distribution of the birefringent object was more clearly visualized in the longer wavelength combined with circularly polarized light illumination. This finding indicates the potential of using polarization imaging with circularly polarized light illumination in the near-infrared range for visualizing birefringent objects with scattering.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Peihui Du, Hongfang Wang, Pengwei Li, Rukeyemuhan Abadula, Hmbat Batelbek, Min Gao
Summary: In this study, we theoretically demonstrate the strong coupling between Tamm plasmons and exciton polaritons in metal Al/DBR-molecular structures, extending the operating wavelength to the deep ultraviolet region. The coupling strength can be effectively manipulated by adjusting the structure parameters, offering potential benefits for the development of new-style optical filters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Priyanka Chaudhary, Akhilesh Kumar Mishra
Summary: We design and numerically investigate the switching dynamics between two outer waveguides in a parity-time (PT)-symmetric adiabatically coupled three waveguides nonlinear directional coupler (NLDC) system. The study shows that the device can provide switching even when the middle waveguide is nonlinear and the outer waveguides are linear. Furthermore, the effect of loss to gain ratio on critical switching power and the impact of launched light power and gain (loss) value on transmitted power are also studied.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Wei Feng, Yongcong Yi, Shuyang Li, Zhi Xiong, Boya Xie, Zhen Zeng
Summary: Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiaorui Qu, Jufeng Zhao, Haijun Tian, Junjie Zhu, Guangmang Cui
Summary: This paper studies the structural similarity between RGB and spectral images and proposes a non-iterative Images Structure Similarity (ISS) method for fast reconstruction of spectral images. Additionally, the input of the Deep Image Prior (DIP) method is optimized for the first time by using the initial spectral data reconstructed by ISS, leading to an improved starting value for the iteration. The experimental results show that the proposed method can enhance the reconstruction quality in both spectral and spatial resolutions, while significantly reducing the reconstruction time compared to other DIP-based methods.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Donghe Sheng, Zhe Han, Zanyang Qiao, Tianpei Dong, Chenxi Wang, Huiping Tian
Summary: In this study, a distributed multi-parameter sensor based on an etched few-mode multi-core fiber is proposed, allowing simultaneous sensing of temperature, strain, and sample refractive index. By combining space division multiplexing and stimulated Brillouin scattering, the sensor achieves high sensitivity in detecting these parameters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng
Summary: In this study, a novel family of elliptical Airyprime vortex beams (EAPVBs) is introduced, which inherits the excellent self-focusing properties of the circular Airyprime vortex beam (CAPVB). The asymmetric focusing of EAPVB leads to some novel properties, such as the splitting of high-order optical vortex and the formation of two foci. By taking advantage of these properties, EAPVB is constructed as a tunable optical bottle for particle capture.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiao Ma, Qiongchan Shao, Jian-Jun He
Summary: In this study, an SHS chip based on Su8 waveguide was designed and fabricated. By physically adjusting the metal electrodes and compensating for transmissivity fluctuations, the generation of side ripples was successfully suppressed.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hongbin Zhang, Jiansen Du, Zongtao Chi, Hailin Cong, Bin Wang
Summary: In this paper, a novel type of dual-wavelength confocal metalens is proposed to solve the spatial crosstalk between two wavelengths. The metalens can greatly reduce the spatial crosstalk and achieve high precision and efficiency in confocal imaging. It can also focus light in specific wavelength ranges, making it suitable for imaging, microscopy, and optical fiber communication.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Rui Qiu, Guanmao Zhang, Shaokai Du, Jie Liu, Hongyu Jib, Kaiyun Bi, Bochuan Xing, Guangchao Diao
Summary: Recent research has developed an achromatic metalens that shows potential for replacing traditional lenses. This study focuses on a continuously variable focus height broadband achromatic metalens for long-wavelength infrared applications. By optimizing materials and parameters, chromatic aberration is effectively corrected, making it suitable for high-resolution LWIR imaging and spectroscopy systems.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Marcos Troncoso-Costas, Gaurav Jain, Yiming Li, Mohammed Patel, Lakshmi Narayanan Venkatasubramani, Sean O'Duill, Frank Smyth, Andrew Ellis, Francisco Diaz-Otero, Colm Browning, Liam Barry
Summary: In this work, a fast-switching tuneable laser capable of wide wavelength coverage, low noise and linewidth levels suitable for high-order modulation formats is demonstrated. The laser is characterized to cover a wavelength range of 35 nm in the C-band with nanosecond switching time. It is used to successfully demonstrate 480 Gbit/s 16QAM transmission over 25 km of single-mode fiber for a wavelength range of 19 nm.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Takeshi Moriyasu, Masahiko Tani, Hideaki Kitahara, Takashi Furuya, Jessica Afalla, Toshiro Kohmoto, Daishiro Koide, Hiroki Sato, Mitsutaka Kumakura
Summary: Optical pump-terahertz probe spectroscopy was used to study the photocarrier dynamics and optical characteristics of semiconductor Si. The results showed that the thickness of Si influenced the transmitted terahertz field amplitude and peak delay time, indicating differences in photocarrier dynamics between different Si materials.
OPTICS COMMUNICATIONS
(2024)