Keyword search (4,163 papers available)

"isolation" Keyword-tagged Publications:

Title Authors PubMed ID
1 Social exclusion, but not withdrawal, is diminished by a friend s level of acceptance: A provisions model Commisso M; Bukowski WM; 41914693
PSYCHOLOGY
2 Testing the predictions of reinforcement: long-term empirical data from a damselfly mottled hybrid zone Arce-Valdés LR; Ballén-Guapacha AV; Rivas-Torres A; Chávez-Ríos JR; Wellenreuther M; Hansson B; Guillén RAS; 39325673
BIOLOGY
3 A fault isolation strategy for industrial processes using outlier-degree-based variable contributions Mu L; Sun W; Zhang Y; Feng N; Xue X; Li Q; 38862336
ENCS
4 Benefits of a 3-month cycle of weekly virtual museum tours in community dwelling older adults: Results of a randomized controlled trial Beauchet O; Matskiv J; Galery K; Goossens L; Lafontaine C; Sawchuk K; 36052331
CONCORDIA
5 Microfluidic Platforms for the Isolation and Detection of Exosomes: A Brief Review Raju D; Bathini S; Badilescu S; Ghosh A; Packirisamy M; 35630197
ENCS
6 Magnetic particle based liquid biopsy chip for isolation of extracellular vesicles and characterization by gene amplification Bathini S; Pakkiriswami S; Ouellette RJ; Ghosh A; Packirisamy M; 34517262
ENCS

 

Title:Magnetic particle based liquid biopsy chip for isolation of extracellular vesicles and characterization by gene amplification
Authors:Bathini SPakkiriswami SOuellette RJGhosh APackirisamy M
Link:https://pubmed.ncbi.nlm.nih.gov/34517262/
DOI:10.1016/j.bios.2021.113585
Publication:Biosensors & bioelectronics
Keywords:DNA quantificationExtracellular vesiclesImmunoaffinity isolationMicrofluidics
PMID:34517262 Category: Date Added:2021-09-14
Dept Affiliation: ENCS
1 Optical Bio-Microsystems Laboratory, Department of Mechanical Engineering, Concordia University, Montreal, Canada.
2 Department of Biochemistry and Molecular Biology, Dalhousie Medicine New Brunswick, Saint John, New Brunswick, Canada.
3 Atlantic Cancer Research Institute, Moncton, New Brunswick, Canada.
4 Optical Bio-Microsystems Laboratory, Department of Mechanical Engineering, Concordia University, Montreal, Canada. Electronic address: pmuthu@alcor.concordia.ca.

Description:

Extracellular vesicles (EVs) are the cell-derived vesicles which play a critical role in cell-to-cell communication, and disease progression. These vesicles contain a myriad of substances like RNA, DNA, proteins, and lipids from their origin cells, offering a good source of biomarkers. The existing methods for the isolation of EVs are time-consuming, lack yield and purity, and expensive. In this work, we present a magnetic particle based liquid biopsy chip for the isolation of EVs by using a synthetic peptide, Vn96. To ensure capture efficiency, a 3D mixer is integrated in the chip, along with a sedimentation unit, which allows EV-captured magnetic particles to settle in it based on gravity assisted sedimentation. The captured EVs are then isolated for their elution and validation. The EVs are characterized by the scanning electron microscopy (SEM) measurements and the ability of capture and isolation of EVs is validated by the nanoparticle tracking analysis (NTA) and atomic force microscopy (AFM). The DNA content of the EVs is further characterized by the absolute quantification of a housekeeping gene (RNase P) copies using droplet digital PCR (ddPCR). The results show that the chip can capture and isolate the EVs, without affecting their morphology. Thus, the liquid biopsy chip can be considered as a potential point of care device for diagnostics in a clinical setting.





BookR developed by Sriram Narayanan
for the Concordia University School of Health
Copyright © 2011-2026
Cookie settings
Concordia University