ArticleAdvanced healthcare materials2021
Magnetic Resonance Guided Navigation of Untethered Microgrippers.
Article in Advanced healthcare materials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed.
- Recent advances in engineering nano/microrobots for tumor treatment.Acta pharmaceutica Sinica. B · 2025Review
- In-Liquid Micromanipulation via a Magnetic Microactuator for Multitasking.Small science · 2025Article
- Democratizing advanced surgical guidance: decoupling the state-of-the-art from tertiary centers and breaking trail for autonomous robotic surgery in austere environments.Proceedings of SPIE--the International Society for Optical Engineering · 2025Article
- Advances in micro-/nanorobots for cancer diagnosis and treatment: propulsion mechanisms, early detection, and cancer therapy.Frontiers in chemistry · 2025Review
- Untethered Microgrippers for Biopsy in the Upper Urinary Tract.Advanced healthcare materials · 2024Article
- Mechanically-Guided 3D Assembly for Architected Flexible Electronics.Chemical reviews · 2023Review
- A Symmetric-Actuating Linear Piezoceramic Ultrasonic Motor Capable of Producing a Scissoring Effect.Research (Washington, D.C.) · 2023Article
- Transnasal targeted delivery of therapeutics in central nervous system diseases: a narrative review.Frontiers in neuroscience · 2023Review
- Thermomagnetic-Responsive Self-Folding Microgrippers for Improving Minimally Invasive Surgical Techniques and Biopsies.Molecules (Basel, Switzerland) · 2022Review
- Image-Guided Magnetic Thermoseed Navigation and Tumor Ablation Using a Magnetic Resonance Imaging System.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Mucosa-interfacing electronics.Nature reviews. Materials · 2022Review
- Hydrogel-Based Stimuli-Responsive Micromotors for Biomedicine.Cyborg and bionic systems (Washington, D.C.) · 2022Review
- Wireless MRI-Powered Reversible Orientation-Locking Capsule Robot.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021Article
- Medical Micro/Nanorobots in Precision Medicine.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020Review
- Untethered shape-changing devices in the gastrointestinal tract.Expert opinion on drug deliveryReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
Microsurgical tools offer a path to less invasive clinical procedures with improved access, reduced trauma, and better recovery outcomes. There are a variety of rigid and flexible endoscopic devices that have significantly advanced diagnostics and microsurgery. However, they rely on wires or tethers for guidance and operation of small end-effector tools. While untethered physiologically responsive microgrippers have been previously shown to excise tissue from deep gastrointestinal locations in animal models, there are challenges associated with guiding them along paths and moving them to specific locations. In this communication, the magnetic dipole moment of untethered thermally responsive grippers is optimized for efficient coupling to external magnetic resonance (MR) fields. Gripper encapsulation in a millimeter sized wax pellet reduces the friction with the surrounding tissue and MR Navigation (MRN) of a 700 µm sized microgripper is realized within narrow channels in tissue phantoms and in an ex vivo porcine esophagus. The results show convincing proof-of-concept evidence that it is possible to sequentially image, move, and guide a submillimeter functional microsurgical tool in tissue conduits using a commercial preclinical MR system, and when combined with prior demonstrations of physiologically responsive in vivo biopsy are an important step towards the clinical translation of untethered microtools.
Indexed as
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.