Janus Microspheres: Janus Microdimer Surface Walkers Propelled by Oscillating Magnetic Fields (Adv. Funct. Mater. 25/2018)

Li, Tianlong; Zhang, Anning; Shao, Guangbin; Wei, Mengshi; Guo, Bin; Zhang, Guangyu; Li, Longqiu; Wang, Wei

doi:10.1002/adfm.201870173

Cited by 30 publications

(33 citation statements)

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“…Use of self‐degrading micro/nanomotors or magnetoresponsive materials can facilitate the efficient capture and removal after decontamination process . Recently, Wang et al developed Janus microdimer surface walker which powered by oscillating magnetic fields with speeds of up to 18.6 µm s −1 in an oscillating magnetic field operated at 25 Hz and ≈2.7 mT . In addition to propulsion, the oscillating magnetic field can be used to navigate the Janus microdimer surface walker through complicated designs and structures …”

Section: Main Challenges In Applications Of Micro/nanomotorsmentioning

confidence: 99%

Self‐Propelled Micro/Nanomotors for Sensing and Environmental Remediation

Zarei

2018

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135

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Self-propelled micro/nanomotors have gained attention for successful application in cargo delivery, therapeutic treatments, sensing, and environmental remediation. Unique characteristics such as high speed, motion control, selectivity, and functionability promote the application of micro/nanomotors in analytical sciences. Here, the recent advancements and main challenges regarding the application of self-propelled micro/nanomotors in sensing and environmental remediation are discussed. The current state of micro/nanomotors is reviewed, emphasizing the period of the last five years, then their developments into the future applications for enhanced sensing and efficient purification of water resources are extrapolated.

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Section: Main Challenges In Applications Of Micro/nanomotorsmentioning

confidence: 99%

Self‐Propelled Micro/Nanomotors for Sensing and Environmental Remediation

Zarei

2018

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135

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“…Recent progress in synthesis enabled preparation nanogels with internal compartments and various shapes [31–35] . Furthermore, is was observed that the extreme softness of ultra‐low cross‐linked (ULC) nanogels leads to unique properties [36] .…”

Section: Introductionmentioning

confidence: 99%

Stiffness Tomography of Ultra‐Soft Nanogels by Atomic Force Microscopy

et al. 2020

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The softness of nanohydrogels results in unique properties and recently attracted tremendous interest due to the multi‐functionalization of interfaces. Herein, we study extremely soft temperature‐sensitive ultra‐low cross‐linked (ULC) nanogels adsorbed to the solid/water interface by atomic force microscopy (AFM). The ultra‐soft nanogels seem to disappear in classical imaging modes since a sharp tip fully penetrates these porous networks with very low forces in the range of steric interactions (ca. 100 pN). However, the detailed evaluation of Force Volume mode measurements allows us to resolve their overall shape and at the same time their internal structure in all three dimensions. The nanogels exhibit an extraordinary disk‐like and entirely homogeneous but extremely soft structure—even softer than polymer brushes. Moreover, the temperature‐sensitive nanogels can be switched on demand between the ultra‐soft and a very stiff state.

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“…[ 152 ] Alternatively, asymmetry in the morphology of the nanomachines allows them to use external stimuli as the energy source to initiate the motion, including magnetic, ultrasound (US), optical, thermal, and electrical energy. [ 155–157 ] To achieve intracellular label delivery, labels are either loaded on the nanomachines or codelivered to the cell medium for diffusion into cells after membrane poration.…”

Section: Nanomachinesmentioning

confidence: 99%

Intracellular Labeling with Extrinsic Probes: Delivery Strategies and Applications

Liu

Fraire

Smedt

et al. 2020

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Extrinsic probes have outstanding properties for intracellular labeling to visualize dynamic processes in and of living cells, both in vitro and in vivo. Since extrinsic probes are in many cases cell‐impermeable, different biochemical, and physical approaches have been used to break the cell membrane barrier for direct delivery into the cytoplasm. In this Review, these intracellular delivery strategies are discussed, briefly explaining the mechanisms and how they are used for live‐cell labeling applications. Methods that are discussed include three biochemical agents that are used for this purpose—purpose‐different nanocarriers, cell penetrating peptides and the pore‐foraming bacterial toxin streptolysin O. Most successful intracellular label delivery methods are, however, based on physical principles to permeabilize the membrane and include electroporation, laser‐induced photoporation, micro‐ and nanoinjection, nanoneedles or nanostraws, microfluidics, and nanomachines. The strengths and weaknesses of each strategy are discussed with a systematic comparison provided. Finally, the extrinsic probes that are reported for intracellular labeling so‐far are summarized, together with the delivery strategies that are used and their performance. This combined information should provide for a useful guide for choosing the most suitable delivery method for the desired probes.

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Janus Microspheres: Janus Microdimer Surface Walkers Propelled by Oscillating Magnetic Fields (Adv. Funct. Mater. 25/2018)

Cited by 30 publications

References 0 publications

Self‐Propelled Micro/Nanomotors for Sensing and Environmental Remediation

Self‐Propelled Micro/Nanomotors for Sensing and Environmental Remediation

Stiffness Tomography of Ultra‐Soft Nanogels by Atomic Force Microscopy

Intracellular Labeling with Extrinsic Probes: Delivery Strategies and Applications

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