1
|
Rodríguez-Sevilla E, Álvarez-Martínez JU, Castro-Beltrán R, Morales-Narváez E. Flexible 3D Plasmonic Web Enables Remote Surface Enhanced Raman Spectroscopy. Adv Sci (Weinh) 2024:e2402192. [PMID: 38582528 DOI: 10.1002/advs.202402192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/19/2024] [Indexed: 04/08/2024]
Abstract
Nanoplasmonic materials concentrate light in specific regions of dramatic electromagnetic enhancement: hot spots. Such regions can be employed to perform single molecule detection via surface-enhanced Raman spectroscopy. However, this phenomenon is challenging since hot spots are expected to be highly intense/abundant and positioning of molecules within such hot spots is crucial to manage with ultrasensitive SERS. Herein, it is discovered that a 3D plasmonic web embedded within a biohybrid (3D-POWER) exhibits plasmonic transmission, spontaneously absorbs the analyte, and meets these so much needed criteria in ultrasensitive SERS. 3D-POWER is built with nanopaper and self-assembled layers of graphene oxide and gold nanorods. According to in silico experiments, 3D-POWER captures light in a small region and performs plasmonic field transmission in a surrounding volume, thereby activating a plasmonic web throughout the simulated volume. The study also provides experimental evidence supporting the plasmonic field transport ability of 3D power, which operates as a SERS signal carrier (even beyond the apparatus field of view), and the ultrasensitive behavior of this ecofriendly and flexible material facilitating yoctomolar limit of detection. Besides, 3D-POWER is proven useful in food and biofluids analysis. It is foreseen that 3D-POWER can be employed as a valuable platform in (bio)analytical applications.
Collapse
Affiliation(s)
- Erika Rodríguez-Sevilla
- Centro de Investigaciones en Óptica A. C., Loma del Bosque 115, Lomas del Campestre, León, Guanajuato, 37150, México
| | - Jonathan Ulises Álvarez-Martínez
- Departamento de Ingeniería Física, División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, León, Guanajuato, 37150, México
| | - Rigoberto Castro-Beltrán
- Departamento de Ingeniería Física, División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, León, Guanajuato, 37150, México
| | - Eden Morales-Narváez
- Biophotonic Nanosensors Laboratory, Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Querétaro, 76230, México
| |
Collapse
|
2
|
Herrera-Herrera PA, Rodríguez-Sevilla E, Varela AS. The role of the metal center on charge transport rate in MOF-525: cobalt and nickel porphyrin. Dalton Trans 2021; 50:16939-16944. [PMID: 34779455 DOI: 10.1039/d1dt03435a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic Frameworks (MOFs) have emerged as promising materials for different electrochemical applications. Their low conductivity, however, is a major challenge to overcome. Therefore, a deeper understanding on the charge transfer mechanism is needed to improve the conductivity of MOF-based electrodes. For this contribution, we focused on metalated MOF-525 and found that the nature of the metal center is one of the many factors contributing to the charge transfer kinetics, which is attributed to differences in redox behaviour, affecting the hopping distance and the electron transfer rate. These results highlight the importance of the nature of the redox active site to optimize charge transfer in MOF-based electrodes.
Collapse
Affiliation(s)
- Pedro Arturo Herrera-Herrera
- Instituto de Química, Universidad Nacional Autónoma de México. Ciudad Universitaria, Circuito exterior S. N., Coyoacán, Ciudad de México, Mexico. .,Laboratorio de sensores biofotónicos, Centro de Investigaciones en Óptica, A. C., Loma del bosque 115, Col. Lomas del campestre 37150, León Guanajuato, Mexico
| | - Erika Rodríguez-Sevilla
- Laboratorio de sensores biofotónicos, Centro de Investigaciones en Óptica, A. C., Loma del bosque 115, Col. Lomas del campestre 37150, León Guanajuato, Mexico
| | - Ana Sofía Varela
- Instituto de Química, Universidad Nacional Autónoma de México. Ciudad Universitaria, Circuito exterior S. N., Coyoacán, Ciudad de México, Mexico.
| |
Collapse
|
3
|
Balderas-Hernández P, Roa-Morales G, Ramírez-Silva MT, Romero-Romo M, Rodríguez-Sevilla E, Esparza-Schulz JM, Juárez-Gómez J. Effective mercury(II) bioremoval from aqueous solution, and its electrochemical determination. Chemosphere 2017; 167:314-321. [PMID: 27732923 DOI: 10.1016/j.chemosphere.2016.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 09/23/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
This work proposed mercury elimination using agricultural waste (Allium Cepa L.). The biomass removed 99.4% of mercury, following a pseudo-second order kinetics (r2 = 0.9999). The Langmuir model was adequately fitted to the adsorption isotherm, thereby obtaining the maximum mercury adsorption capacity of 111.1 ± 0.3 mg g-1. The biomass showed high density of strong mercury chelating groups, thus making it economically attractive. Also, the implementation of a mercury-selective electrode for continuous determination in real time is proposed; this electrode replaces techniques like atomic absorption spectroscopy, thus it can be applied to real time studies. This work therefore presents a new perspective for removing mercury(II) from contaminated water for environmental remediation.
Collapse
Affiliation(s)
- Patricia Balderas-Hernández
- Centro Conjunto de Investigación en Química Sustentable CCIQS, UAEM-UNAM, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco, km 14.5, C.P. 50200, Toluca, México
| | - Gabriela Roa-Morales
- Centro Conjunto de Investigación en Química Sustentable CCIQS, UAEM-UNAM, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco, km 14.5, C.P. 50200, Toluca, México
| | - María Teresa Ramírez-Silva
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Del. Iztapalapa, C.P. 09340, Ciudad de México, México
| | - Mario Romero-Romo
- Departamento de Materiales, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Col. Reynosa-Tamaulipas, Del. Azcapotzalco, C.P. 02200, Ciudad de México, México
| | - Erika Rodríguez-Sevilla
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, C.P. 04510, Ciudad de México, México
| | - Juan Marcos Esparza-Schulz
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Del. Iztapalapa, C.P. 09340, Ciudad de México, México
| | - Jorge Juárez-Gómez
- Centro Conjunto de Investigación en Química Sustentable CCIQS, UAEM-UNAM, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco, km 14.5, C.P. 50200, Toluca, México.
| |
Collapse
|
4
|
Rodríguez-Sevilla E, Ramírez-Silva MT, Romero-Romo M, Ibarra-Escutia P, Palomar-Pardavé M. Electrochemical quantification of the antioxidant capacity of medicinal plants using biosensors. Sensors (Basel) 2014; 14:14423-39. [PMID: 25111237 PMCID: PMC4179004 DOI: 10.3390/s140814423] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 11/16/2022]
Abstract
The working area of a screen-printed electrode, SPE, was modified with the enzyme tyrosinase (Tyr) using different immobilization methods, namely entrapment with water-soluble polyvinyl alcohol (PVA), cross-linking using glutaraldehyde (GA), and cross-linking using GA and human serum albumin (HSA); the resulting electrodes were termed SPE/Tyr/PVA, SPE/Tyr/GA and SPE/Tyr/HSA/GA, respectively. These biosensors were characterized by means of amperometry and EIS techniques. From amperometric evaluations, the apparent Michaelis-Menten constant, Km′, of each biosensor was evaluated while the respective charge transfer resistance, Rct, was assessed from impedance measurements. It was found that the SPE/Tyr/GA had the smallest Km′ (57 ± 7) μM and Rct values. This electrode also displayed both the lowest detection and quantification limits for catechol quantification. Using the SPE/Tyr/GA, the Trolox Equivalent Antioxidant Capacity (TEAC) was determined from infusions prepared with “mirto” (Salvia microphylla), “hHierba dulce” (Lippia dulcis) and “salve real” (Lippia alba), medicinal plants commonly used in Mexico.
Collapse
Affiliation(s)
- Erika Rodríguez-Sevilla
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Área de Química Analítica, San Rafael Atlixco 186, Col. Vicentina, Del. Iztapalapa, México D.F., C.P. 09340, Mexico.
| | - María-Teresa Ramírez-Silva
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Área de Química Analítica, San Rafael Atlixco 186, Col. Vicentina, Del. Iztapalapa, México D.F., C.P. 09340, Mexico.
| | - Mario Romero-Romo
- Departamento de Materiales, Universidad Autónoma Metropolitana-Azcapotzalco, Área Ingeniería de Materiales, Av. San Pablo 180, Col. Reynosa-Tamaulipas, Del. Azcapotzalco, México, D.F., C.P. 02200, Mexico.
| | - Pedro Ibarra-Escutia
- SEP-Instituto Tecnológico de Toluca. Departamento de Ingeniería Química y Bioquímica. Av, Tecnológico S/N. Fraccionamiento La Virgen, Metepec, Edo de México, C.P. 52149, Mexico.
| | - Manuel Palomar-Pardavé
- Departamento de Materiales, Universidad Autónoma Metropolitana-Azcapotzalco, Área Ingeniería de Materiales, Av. San Pablo 180, Col. Reynosa-Tamaulipas, Del. Azcapotzalco, México, D.F., C.P. 02200, Mexico.
| |
Collapse
|