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Coro A, Herrero Ruiz A, Pazo-González M, Sánchez-Cruz A, Busch T, Hernández Medel A, Ximendes EC, Ortgies DH, López-Méndez R, Espinosa A, Jimenez de Aberasturi D, Jaque D, Fernández Monsalve N, de la Rosa EJ, Hernández-Sánchez C, Martín Rodríguez E, H Juárez B. Ag 2 S Biocompatible Ensembles as Dual OCT Contrast Agents and NIR Ocular Imaging Probes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2305026. [PMID: 37596060 DOI: 10.1002/smll.202305026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/23/2023] [Indexed: 08/20/2023]
Abstract
Ag2 S nanoparticles (NPs) emerge as a unique system that simultaneously features in vivo near-infrared (NIR) imaging, remote heating, and low toxicity thermal sensing. In this work, their capabilities are extended into the fields of optical coherence tomography (OCT), as contrast agents, and NIR probes in both ex vivo and in vivo experiments in eyeballs. The new dual property for ocular imaging is obtained by the preparation of Ag2 S NPs ensembles with a biocompatible amphiphilic block copolymer. Rather than a classical ligand exchange, where surface traps may arise due to incomplete replacement of surface sites, the use of this polymer provides a protective extra layer that preserves the photoluminescence properties of the NPs, and the procedure allows for the controlled preparation of submicrometric scattering centers. The resulting NPs ensembles show extraordinary colloidal stability with time and biocompatibility, enhancing the contrast in OCT with simultaneous NIR imaging in the second biological window.
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Affiliation(s)
- Amalia Coro
- Instituto de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la Cruz, 3, 28049, Madrid, Spain
| | - Ada Herrero Ruiz
- CiCbiomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 182, 20014, Donostia-San Sebastián, Gipuzkoa, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y, Nanomedicina (CIBER-BBN), 20014, Donostia-San Sebastián, Spain
| | - Mateo Pazo-González
- Centro de Investigaciones Biológicas Margarita Salas, CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
- Department of Systems Biology, Facultad de Medicina, Universidad de Alcalá, Ctra de Madrid-Barcelona, Km 33,600 Alcalá de Henares, 28871, Madrid, Spain
- Visual Neurophysiology Group, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
| | - Alonso Sánchez-Cruz
- Centro de Investigaciones Biológicas Margarita Salas, CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Tobias Busch
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
| | - Alejandro Hernández Medel
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
| | - Erving C Ximendes
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
- Institute for Advanced Research in Chemistry (IAdChem), Campus de Cantoblanco, 28049, Madrid, Spain
| | - Dirk H Ortgies
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
- Institute for Advanced Research in Chemistry (IAdChem), Campus de Cantoblanco, 28049, Madrid, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | | | - Ana Espinosa
- Instituto de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la Cruz, 3, 28049, Madrid, Spain
| | - Dorleta Jimenez de Aberasturi
- CiCbiomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 182, 20014, Donostia-San Sebastián, Gipuzkoa, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y, Nanomedicina (CIBER-BBN), 20014, Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
| | - Daniel Jaque
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
- Institute for Advanced Research in Chemistry (IAdChem), Campus de Cantoblanco, 28049, Madrid, Spain
| | - Nuria Fernández Monsalve
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
- nanoBIG Group, Facultad de Medicina, Universidad Autónoma de Madrid, C/ Arzobispo Morcillo, 4, 28029, Madrid, Spain
| | - Enrique J de la Rosa
- Centro de Investigaciones Biológicas Margarita Salas, CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Catalina Hernández-Sánchez
- Centro de Investigaciones Biológicas Margarita Salas, CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, 28034, Madrid, Spain
| | - Emma Martín Rodríguez
- Nanomaterials for BioImaging Group (nanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034, Madrid, Spain
- Institute for Advanced Research in Chemistry (IAdChem), Campus de Cantoblanco, 28049, Madrid, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - Beatriz H Juárez
- Instituto de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la Cruz, 3, 28049, Madrid, Spain
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