Results 21 to 30 of about 8,960 (212)

Ongoing Pregnancies following Cosmetic Micromanipulation of Preimplantation Embryos in Patients with Implantation Failure

Case Reports in Medicine, 2015
Cosmetic micromanipulation is defined as fragment and coarse granulation removal from preimplantation embryos. We report two cases of pregnancies in patients with implantation failure following cosmetic micromanipulation.
Iman Halvaei, Mohammad Ali Khalili, Somayyeh Safari, Navid Esfandiari   +3 more
doaj   +1 more source

Review of Bubble Applications in Microrobotics: Propulsion, Manipulation, and Assembly

Micromachines, 2022
In recent years, microbubbles have been widely used in the field of microrobots due to their unique properties. Microbubbles can be easily produced and used as power sources or tools of microrobots, and the bubbles can even serve as microrobots ...
Yuting Zhou, Liguo Dai, Niandong Jiao
doaj   +1 more source

Development of an in-process micro tensile tester and its application for measurement of the mechanical properties and adhesion forces of cells (Quantitative analysis of a cancer cell stiffness and adhesion forces)

Nihon Kikai Gakkai ronbunshu, 2020
The cells in living tissue change not only their proliferation and motility, but also their mechanical properties in response to external mechanical stimuli. The mechanical properties of the cells and their adhesion strength with the extracellular matrix
Shota OBATA, Kazuaki NAGAYAMA
doaj   +1 more source

Relationship between the Young’s Moduli of Whole Microcapsules and Their Shell Material Established by Micromanipulation Measurements Based on Diametric Compression between Two Parallel Surfaces and Numerical Modelling

Micromachines, 2023
Micromanipulation is a powerful technique to measure the mechanical properties of microparticles including microcapsules. For microparticles with a homogenous structure, their apparent Young’s modulus can be determined from the force versus displacement ...
Daniele Baiocco, Zhihua Zhang, Yanping He, Zhibing Zhang   +3 more
doaj   +1 more source

On a Vision-Based Manipulator Simulator

Actuators, 2023
This paper presents a typical grasp–hold–release micromanipulation simulator based on MATLAB and Simulink. Closed-loop force and position control were implemented only based on a camera. The work was mainly focused on control performance improvements and
Shuwen Yu, Guangbo Hao
doaj   +1 more source

Intra-embryo Gene Cassette Knockin by CRISPR/Cas9-Mediated Genome Editing with Adeno-Associated Viral Vector

iScience, 2018
Summary: Intra-embryo genome editing by CRISPR/Cas9 enables easy generation of gene-modified animals by non-homologous end joining (NHEJ)-mediated frameshift mutations or homology-directed repair (HDR)-mediated point mutations.
Naoaki Mizuno, Eiji Mizutani, Hideyuki Sato, Mariko Kasai, Aki Ogawa, Fabian Suchy, Tomoyuki Yamaguchi, Hiromitsu Nakauchi   +7 more
doaj   +1 more source

A Digitized Representation of the Modified Prandtl–Ishlinskii Hysteresis Model for Modeling and Compensating Piezoelectric Actuator Hysteresis

Micromachines, 2021
Piezoelectric actuators are widely used in micromanipulation and miniature robots due to their rapid response and high repeatability. The piezoelectric actuators often have undesired hysteresis.
Chao Zhou, Chen Feng, Yan Naing Aye, Wei Tech Ang   +3 more
doaj   +1 more source

Microscopic Object Recognition and Localization Based on Multi-Feature Fusion for In-Situ Measurement In Vivo

Algorithms, 2019
Microscopic object recognition and analysis is very important in micromanipulation. Micromanipulation has been extensively used in many fields, e.g., micro-assembly operation, microsurgery, agriculture, and biological research.
Shi-Xian Yan, Peng-Fei Zhao, Xin-Yu Gao, Qiao Zhou, Jin-Hai Li, Jie-Peng Yao, Zhi-Qiang Chai, Yang Yue, Zhong-Yi Wang, Lan Huang   +9 more
doaj   +1 more source

Orthogonality Measurement of Three-Axis Motion Trajectories for Micromanipulation Robot Systems

Micromachines, 2021
In robotic micromanipulation systems, the orthogonality of the three-axis motion trajectories of the motion control systems influences the accuracy of micromanipulation.
Yuezong Wang, Jinghui Liu, Hao Chen, Jiqiang Chen, Yangyang Lu   +4 more
doaj   +1 more source

Analytical Models for Measuring the Mechanical Properties of Yeast

Cells, 2023
The mechanical properties of yeast play an important role in many biological processes, such as cell division and growth, maintenance of internal pressure, and biofilm formation.
Nikita Savin, Alexander Erofeev, Petr Gorelkin   +2 more
doaj   +1 more source