Evidence map›Paper›PMID 34240729›Full record

ArticleThe Analyst2021

Pulsed laser assisted high-throughput intracellular delivery in hanging drop based three dimensional cancer spheroids.

Pallavi Gupta, Srabani Kar, Ashish Kumar, Fan-Gang Tseng, Shantanu Pradhan, Pallab Sinha Mahapatra, Tuhin Subhra Santra

Abstract read
In one paragraph

Article in The Analyst, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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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

7 authors.

Pallavi GuptaDepartment of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India. tuhin@iitm.ac.in santra.tuhin@gmail.com.
Srabani KarDepartment of Electrical Engineering, University of Cambridge, Cambridge CB3 0FA, UK.ORCID http://orcid.org/0000-0001-8648-383X
Ashish KumarDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
Fan-Gang TsengDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.ORCID http://orcid.org/0000-0001-7654-6905
Shantanu PradhanDepartment of Biotechnology, Bhupat & Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India. spradhan@iitm.ac.in.
Pallab Sinha MahapatraDepartment of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600036, India.ORCID http://orcid.org/0000-0002-4073-9980
Tuhin Subhra SantraDepartment of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India. tuhin@iitm.ac.in santra.tuhin@gmail.com.ORCID http://orcid.org/0000-0002-9403-2155

Funding

DBT-Wellcome Trust India Alliance IA/E/16/1/503062
6 · The paper itself

Abstract

Targeted intracellular delivery of biomolecules and therapeutic cargo enables the controlled manipulation of cellular processes. Laser-based optoporation has emerged as a versatile, non-invasive technique that employs light-based transient physical disruption of the cell membrane and achieves high transfection efficiency with low cell damage. Testing of the delivery efficiency of optoporation-based techniques has been conducted on single cells in monolayers, but its applicability in three-dimensional (3D) cell clusters/spheroids has not been explored. Cancer cells grown as 3D tumor spheroids are widely used in anti-cancer drug screening and can be potentially employed for testing delivery efficiency. Towards this goal, we demonstrated the optoporation-based high-throughput intracellular delivery of a model fluorescent cargo (propidium iodide, PI) within 3D SiHa human cervical cancer spheroids. To enable this technique, nano-spiked core-shell gold-coated polystyrene nanoparticles (ns-AuNPs) with a high surface-to-volume ratio were fabricated. ns-AuNPs exhibited high electric field enhancement and highly localized heating at an excitation wavelength of 680 nm. ns-AuNPs were co-incubated with cancer cells within hanging droplets to enable the rapid aggregation and assembly of spheroids. Nanosecond pulsed-laser excitation at the optimized values of laser fluence (45 mJ cm

Indexed as

Metal NanoparticlesNeoplasmsCell SurvivalGoldHumansLasersSpheroids, CellularGold

Identifiers

PMID34240729
PMCPMC7611397

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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.