Results 51 to 60 of about 8,758 (198)

Direct Laser Writing of Magnetic Micro Actuators With a Stimulus‐Responsive Compliant Hinge

Advanced Materials Technologies, EarlyView.
This study presents a versatile modular design strategy for adaptive 3D microactuators. Using two‐photon‐induced C,H insertion reactions within solid polymer layers, chemically distinct hinge and stimulus responsive materials are patterned in one step. The hinge's properties enable tunable motion, mechanical control, and reconfigurable actuation across
Eleonora Galli, Nicolas Geid, Yizheng Liu, Friederike Strahl, Jürgen Rühe   +4 more
wiley   +1 more source

Effective collective barrier for magnetic relaxation in frozen ferrofluids

, 2003
Magnetic relaxation and frequency response were measured in frozen ferrimagnetic colloids of different concentrations. A crossover from reversible to irreversible behavior is observed for concentrated colloids.
Blatter, Denisov, Dormann, Eberbeck, Garanin, Griessen, Iglesias, Jonsson, Jonsson, Lottis, Luo, Maley, Mamiya, Mørup, Néel, Pazmandi, Prozorov, Prozorov, Prozorov, Ruslan Prozorov, Shafi, Stoner, Suslick, Suslick, Tanya Prozorov, Templeton, van Lierop, Yeshurun, Zeldov, Zhang   +29 more
core   +1 more source

Hydrodynamic interactions in colloidal ferrofluids: A lattice Boltzmann study [PDF]

, 2009
We use lattice Boltzmann simulations, in conjunction with Ewald summation methods, to investigate the role of hydrodynamic interactions in colloidal suspensions of dipolar particles, such as ferrofluids.
Adhikari R., Allen M. P., Banchio A. J., Banchio A. J., Butter K., Butter K., Camp P. J., Camp P. J., Cates M. E., de Gennes P. G., de Leeuw S. W., Duncan P. D., Erné B. H., Felderhof B. U., Fincham D., Fuchs M., Ganzenmüller G., Groot R. D., Hansen J.-P., Hess P. H., Holm C., Huang J. P., Huke B., Ivanov A. O., Jenkins M. C., Kendon V. M., Klokkenburg M., Kremer K., Ladd A. J. C., Ladd A. J. C., Levesque D., Malevanets A., Murashov V. V., Mériguet G., Mériguet G., Nguyen N.-Q., Odenbach S., Phung T. N., Poon W. C. K., Pusey P. N., Satoh A., Satoh A., Scheffold F., Segrè P. N., Stansell P., Stevens M. J., Stratford K., Stratford K., Stratford K., Tavares J. M., Tlusty T., Wang Z., Wang Z., Wei D., Weis J. J., Weis J. J.   +55 more
core   +3 more sources

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

A New Theoretical Approach of Wall Transpiration in the Cavity Flow of the Ferrofluids

Micromachines, 2019
An idea of permeable (suction/injection) chamber is proposed in the current work to control the secondary vortices appearing in the well-known lid-driven cavity flow by means of the water based ferrofluids.
Abuzar Abid Siddiqui, Mustafa Turkyilmazoglu   +1 more
doaj   +1 more source

Magnetically driven microfluidics for isolation of circulating tumor cells

Cancer Medicine, 2020
Circulating tumor cells (CTCs) largely contribute to cancer metastasis and show potential prognostic significance in cancer isolation and detection. Miniaturization has progressed significantly in the last decade which in turn enabled the development of ...
Laan Luo, Yongqing He
doaj   +1 more source

The Use of Ferrofluids in Analytical Sample Preparation: A Review

Separations, 2021
Ferrofluids (FFs) constitute a type of tunable magnetic material, formed by magnetic nanoparticles suspended in a liquid carrier. The astonishing magnetic properties of these materials and their liquid nature have led to their extended use in different ...
Raúl González-Martín, Adrián Gutiérrez-Serpa, Verónica Pino   +2 more
doaj   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Advanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Numerical study of ferro‐droplet breakup initiation induced by a slowly rotating uniform magnetic field

Engineering Reports, 2021
The fully three‐dimensional start‐up deformations and accelerations of initially spherical magnetically susceptable linearly magnetizable ferrofluid droplets, driven by a rotating uniform magnetic field, are investigated through the use of coupled finite
Alastair J. Radcliffe
doaj   +1 more source