ArticleScience advances2020
Liquid seal for compact micropiston actuation at the capillary tip.
Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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
14 citing papers in PubMed, 32 citations in OpenAlex.
- Article
- Article
- Gravity-Driven Microfluidic Viscosity Measurement with a Small Capillary Radius and Strong Pinning Effect.Micromachines · 2026Article
- A Linearly Deformable Pneumatic Scalable Microgripper for Universal Mid-Air Micromanipulation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- 3D nanoprinting of embryo microinjection needles with anti-clogging features.Microsystems & nanoengineering · 2025Article
- 3D nanoprinting of PDMS microvessels with tailored tortuosity and microporosityLab on a chip · 2025Article
- Submillimeter fiber robots capable of decoupled macro-micro motion for endoluminal manipulation.Science advances · 2024Article
- Direct laser writing-enabled 3D printing strategies for microfluidic applications.Lab on a chip · 2024Review
- FABRICATION OF MULTILUMEN MICROFLUIDIC TUBING FORProceedings. IEEE International Conference on Micro Electro Mechanical Systems · 2024Article
- A 3D-MICROPRINTED COAXIAL NOZZLE FOR FABRICATING LONG, FLEXIBLE MICROFLUIDIC TUBING.Proceedings. IEEE International Conference on Micro Electro Mechanical Systems · 2024Article
- TOWARD CONTROLLED-RELEASE DRUG DELIVERY MICROCARRIERS ENABLED BY DIRECT LASER WRITING 3D PRINTING.Proceedings. IEEE International Conference on Micro Electro Mechanical Systems · 2024Article
- 3D-Printed Microinjection Needle Arrays via a Hybrid DLP-Direct Laser Writing Strategy.Advanced materials technologies · 2023Article
- Microfluidics at Fiber Tip for Nanoliter Delivery and Sampling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021Article
- A comparative review of artificial muscles for microsystem applications.Microsystems & nanoengineering · 2021Review
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 at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Actuators at the tip of a submillimetric catheter could facilitate in vivo interventional procedures at cellular scales by enabling tissue biopsy and manipulation or supporting active micro-optics. However, the dominance of frictional forces at this scale makes classical mechanism problematic. Here, we report the design of a microscale piston, with a maximum dimension of 150 μm, fabricated with two-photon lithography onto the tip of 140-μm-diameter capillaries. An oil drop method is used to create a seal between the piston and the cylinder that prevents any leakage below 185-mbar pressure difference while providing lubricated friction between moving parts. This piston generates forces that increase linearly with pressure up to 130 μN without breaking the liquid seal. The practical value of the design is demonstrated with its integration with a microgripper that can grasp, move, and release 50-μm microspheres. Such a mechanism opens the way to micrometer-size catheter actuation.
Identifiers
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.