Keyword search (4,163 papers available)

"Mena-Giraldo P" Authored Publications:

Title Authors PubMed ID
1 Enhancing X-ray Activated Photodynamic Therapy with Supported Lipid Bilayer-Coated Radioluminescent Nanoparticles Bondon N; Mandl GA; Mena-Giraldo P; Ferron Z; Sadeghipour N; DeWolf C; Capobianco JA; 41059546
CNSR
2 Light-Activated Micromotors in Air Propelled by Thermal Convection Mena-Giraldo P; Mandl GA; Quezada-Novoa V; Garcia-Henao C; Bondon N; Hazlett MJ; Capobianco JA; 40964823
CNSR
3 Janus Micromotors for Photophoretic Motion and Photon Upconversion Applications Using a Single Near-Infrared Wavelength Mena-Giraldo P; Kaur M; Maurizio SL; Mandl GA; Capobianco JA; 38197400
CHEMBIOCHEM
4 Cytotoxicity and Genotoxicity of Azobenzene-Based Polymeric Nanocarriers for Phototriggered Drug Release and Biomedical Applications Londoño-Berrío M; Pérez-Buitrago S; Ortiz-Trujillo IC; Hoyos-Palacio LM; Orozco LY; López L; Zárate-Triviño DG; Capobianco JA; Mena-Giraldo P; 35956634
CNSR

 

Title:Light-Activated Micromotors in Air Propelled by Thermal Convection
Authors:Mena-Giraldo PMandl GAQuezada-Novoa VGarcia-Henao CBondon NHazlett MJCapobianco JA
Link:https://pubmed.ncbi.nlm.nih.gov/40964823/
DOI:10.1002/adma.202505959
Publication:Advanced materials (Deerfield Beach, Fla.)
Keywords:aerodynamic motionlight‐induced thermal convectionmicromotorsmotion trackingnanothermometryupconverting nanoparticles
PMID:40964823 Category: Date Added:2025-09-18
Dept Affiliation: CNSR
1 Department of Chemistry and Biochemistry & Centre for NanoScience Research, Concordia University, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada.
2 Department of Chemical and Materials Engineering & Centre for NanoScience Research, Concordia University, 7141 Sherbrooke St. W., Montreal, QC, H4B 1R6, Canada.

Description:

Micromotors are an attractive cutting-edge technology that exhibit controllable motion in response to chemical reactions or external stimuli. These nature-inspired materials are widely explored for use in environmental remediation, and drug delivery, other emerging applications. Until now, the micromotors field is restricted to applications in aqueous environments, as achieving controllable motion in air while overcoming gravity remains a significant challenge. Herein, for the first time, to our knowledge, we introduce a system capable of overcoming gravity to achieve light-induced thermal convective motion in air, driven by near-infrared light excitation. The micromotors are composed of spiky, pollen-like ZnO microparticles coated with gold nanoparticles, which interact photothermally with the NIR light, generating a thermal gradient that induces propulsion of the micromotor system. Lanthanide-doped upconverting nanoparticles are deposited onto the micromotor surface to enable nanothermometric monitoring of surface temperature, providing critical information needed to describe the system's thermal behavior in air. This micromotor platform provides a versatile approach to overcome gravity and induce a controllable movement in a gaseous matrix, opening new opportunities to develop proof-of-concepts and applications using this aerodynamic micromotor approach.





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