Evidence map›Paper›PMID 31648253›Full record

ArticlePloS one2019

Extracellular vesicles nanoarray technology: Immobilization of individual extracellular vesicles on nanopatterned polyethylene glycol-lipid conjugate brushes.

Shusuke Yokota, Hiromi Kuramochi, Kyohei Okubo, Akiko Iwaya, Shoichi Tsuchiya, Takanori Ichiki

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Physical Changes of Biomacromolecules upon Covalent Surface Immobilization.Langmuir : the ACS journal of surfaces and colloids · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Shusuke YokotaDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan.
Hiromi KuramochiDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan.
Kyohei OkuboDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan.
Akiko IwayaDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan.
Shoichi TsuchiyaInnovation Center of NanoMedicine, Kawasaki, Kanagawa, Japan.
Takanori IchikiDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan.ORCID 0000-0001-5744-3679

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Arraying individual extracellular vesicles (EVs) on a chip is expected one of the promising approaches for investigating their inherent properties. In this study, we immobilized individual EVs on a surface using a nanopatterned tethering chip-based versatile platform. A microfluidic device was used to ensure soft, reproducible exposure of the EVs over the whole chip surface. The device is incorporated with a high-density nanoarray chip patterned with 200-nm diameter nanospots composed of polyethylene glycol (PEG)-lipid conjugate brushes. We present a procedure adopted for fabricating high-density PEG-lipid modified nanospots (200 nmϕ, 5.0 × 105 spots/mm2 in 2 × 2 mm2 area). This procedure involves nanopatterning using electron beam lithography, followed by multistep selective chemical modification. Aqueous treatment of a silane coupling agent, used as a linker between PEG-lipid molecules and the silicon surface, was the key step that enabled surface modification using a nanopatterned resist film as a mask. The nanoarray chip was removed from the device for subsequent measurements such as atomic force microscopy (AFM). We developed a prototype device and individually immobilized EVs derived from different cell lines (Sk-Br-3 and HEK293) on tethering nanospots. We characterized EV's morphology using AFM and showed the possibility of evaluating the deformability of EVs using the aspect ratio as an indicator.

Indexed as

Lab-On-A-Chip DevicesExtracellular VesiclesHEK293 CellsHumansLipidsMicroscopy, Atomic ForceNanotechnologyPolyethylene GlycolsLipidsPolyethylene Glycols

Identifiers

PMID31648253
PMCPMC6812765

What OpenQuestion holds

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Registered trials

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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.