Article
Optics
Ali Bavali, Ali Rahmatpanahi, Zahra Niknam
Summary: The angular dependence of diffusive random laser emission is evaluated by exciting a highly concentrated solution. Dimerization at high concentrations leads to random fluctuation of the dielectric constant and provides multiple scattering events and enhanced backscattering. Förster resonance energy transfer and anisotropic inner filter effect have a significant impact on the unique spectral features of RL emission.
Article
Chemistry, Physical
Souvik Pandit, Aloke Bapli, Debabrata Seth
Summary: This study investigated the photophysical properties of cyanine dye MC540 in protein-surfactant aggregates and surfactant aggregates using various spectroscopic methods. It was found that MC540 interacts differently with cationic and anionic surfactants, with only the monomer form existing in aggregates. The research also revealed that MC540 strongly interacts with cationic micelles compared to anionic micelles in the presence of surfactants.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Maxime Royon, Francis Vocanson, Damien Jamon, Francois Royer, Emmanuel Marin, Adriana Morana, Cosimo Campanella, Aziz Boukenter, Youcef Ouerdane, Yves Jourlin, Sylvain Girard
Summary: The study demonstrates that the Rhodamine 6G-doped TiO2-SiO2 sol-gel films can maintain strong photoluminescence signals even after exposure to gamma-rays. Additionally, the refractive index decreases with increasing dose, and chemical changes indicate a photo-induced polymerization process, suggesting potential applications of the material in radiation-rich environments for sensing purposes.
Article
Materials Science, Ceramics
Chenghong Wang, Xian Zhang, Shiquan Liu
Summary: Transparent mesoporous silica microspheres were synthesized via sol-gel method followed by calcination, and exhibited enhanced fluorescence performance.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Applied
M. Barlog, H. Palkova, J. Bujdak
Summary: The focus of this study was on developing pigments based on layered nanomaterials with luminescent properties by modifying two layered silicates (montmorillonite and saponite) with cationic organic surfactants and a laser dye, which significantly increased fluorescence intensity, especially for montmorillonite hybrids. Advanced statistical analysis was used to differentiate components in fluorescence spectra. By selecting suitable organic cation and dye components, pigments with high fluorescence and long wavelengths approaching the near-infrared region could be prepared.
Article
Chemistry, Analytical
Xun Cao
Summary: This study systematically investigated the formation process of ordered Au nano-ring arrays and identified the optimal parameters for fabrication. The ordered Au nano-ring arrays demonstrated significantly improved efficiency in the electrochemical removal of a contaminant and showed better accuracy in surface-enhanced Raman spectroscopy compared to previous studies.
Article
Chemistry, Physical
Mara Dubnicka, William B. Euler
Summary: The absorption and emission spectra of six rhodamine dyes were investigated in solution and thin films, and their characteristics were found to be influenced by molecular structure. The photophysical behavior of thin films differed from that of solution, depending on interactions with the substrate.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Applied
Yuhao Jin, Jing Wu, Dehua Hu, Kaina Zhang, Suimin Deng, Lina Yang, Yun Hao, Xiangfeng Wang, Yuan Liu, Hailing Liu, Mengxia Xie
Summary: A novel enzyme-free immunoassay based on nanotechnology and fluorescent dye has been developed for the accurate detection of the biomarker PCT in human serum. The immunoassay shows high sensitivity and selectivity, and has been successfully utilized for determining PCT levels in real serum samples.
Article
Chemistry, Inorganic & Nuclear
G. Cabello-Guzman, Mathias Seguel, Luis Fernandez, Claudia Caro, Cristian Suarez, Marcela Matus, Camila Cifuentes, Felipe Bustos, Katherine Ariz
Summary: We propose a synthesis strategy using β-triketonate complexes of Zn(II) and Cu(II) as precursors for the photo-deposition of CuO-loaded ZnO films. The resulting ZnO/CuO heterojunction system showed low crystallinity and the presence of both ZnO and CuO. The optical properties revealed a gradual reduction of the optical bandgap with increasing CuO loading, and photoluminescence tests showed decreased emission bands with the insertion of CuO. The ZnO films loaded with 1 mol% CuO exhibited high photo-degradation efficiency for rhodamine B and rhodamine 6G.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Soma Majumder, Somenath Chatterjee, Parita Basnet, Jaya Mukherjee
Summary: This study focuses on industrially-relevant photocatalysis using silver-zinc oxide nanocomposites to efficiently degrade high concentrations of Rhodamine 6G laser dye, achieving recyclability of the photocatalyst.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Anjani R. K. Gollakota, Venkata Subbaiah Munagapati, Sneha Gautam, Jet-Chau Wen, Chi-Min Shu
Summary: A crystalline zeolite material AlPO-14 was synthesized using Taiwanese coal fly ash and showed potential for separating cationic dyestuff R 6G from aqueous streams. The zeolites demonstrated good adsorption capacity for the dye, especially at neutral pH, and could be easily regenerated for multiple reuse cycles in alkaline medium.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Optics
Mandana Sadat Hosseini, Elnaz Yazdani, Batool Sajad, Fariba Mehradnia
Summary: The study reveals that the coupling of random lasing and stimulated Raman scattering enables tunable random lasers, offering possibilities for manufacturing optical devices in the future. This coupling effect also aids in enhancing the efficiency and applications of Raman spectroscopy.
JOURNAL OF LUMINESCENCE
(2021)
Article
Polymer Science
Bo Xu, Zixiong Luo, Rui Xiao, Zhijian Wang, Jiping Yang
Summary: Mechanochromic double network hydrogels based on a hybrid mechanism have been developed, showing reversible color changes in response to stress. The stress sensitivity can be adjusted by controlling the crosslinking density and mechanophore concentration. The study also investigates the influence of pH on the mechanochromic properties of the hydrogels.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Aditya Goyal, Prayas Singh, Pankaj Chamoli, K. K. Raina, Ravi K. Shukla
Summary: The aggregation behavior of biowaste Litchi Chinensis seed in different solvents and its potential as a natural adsorbent for dye removal have been studied. Results suggest that LC seeds could act as a perfect surfactant for lyotropic assemblies and an effective natural adsorbent for cleaning of aquatic systems.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Anjani R. K. Gollakota, Venkata Subbaiah Munagapati, Krushna Prasad Shadangi, Guda Mallikarjuna Reddy, Jet-Chau Wen, Chi-Min Shu
Summary: The study involved the transformation of coal fly ash into zeolite (AlPO4-5) which showed potential for adsorption of dyes and metal ions in water treatment applications. The zeolite exhibited high adsorption capacities and good reusability during the adsorption process.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Rebeca Sola-Llano, Ainhoa Oliden-Sanchez, Almudena Alfayate, Luis Gomez-Hortiguela, Joaquin Perez-Pariente, Teresa Arbeloa, Johan Hofkens, Eduard Fron, Virginia Martinez-Martinez
Article
Chemistry, Organic
Mario Perez-Venegas, Teresa Arbeloa, Jorge Banuelos, Inigo Lopez-Arbeloa, Nancy E. Lozoya-Perez, Bernardo Franco, Hector M. Mora-Montes, Jose L. Belmonte-Vazquez, Claudia Bautista-Hernandez, Eduardo Pena-Cabrera, Eusebio Juaristi
Summary: Mechanochemistry is used to prepare valuable dyes, with the molecular structure and fluorescence interaction playing a key role in fluorescence response, demonstrating high brightness in cellular media. The novel dyes efficiently stain PBMCs and Candida albicans cells, and can monitor different stages of phagocytosis.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Juan Gurruchaga-Pereda, Virginia Martinez-Martinez, Elena Formoso, Oksana Azpitarte, Elixabete Rezabal, Xabier Lopez, Aitziber L. Cortajarena, Luca Salassa
Summary: Our recent research shows that protein engineering can enhance the catalytic capacity of certain flavoproteins towards metal-containing substrates. By using site-directed mutagenesis, the photocatalytic activity of flavoprotein towards Pt(IV) substrates can be modulated. Among the mutants prepared, Q103V mSOG exhibited improved catalytic efficiency due to its longer triplet excited-state lifetime.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Ruth Prieto-Montero, Alejandro Prieto-Castaneda, Alberto Katsumiti, Miren P. Cajaraville, Antonia R. Agarrabeitia, Maria J. Ortiz, Virginia Martinez-Martinez
Summary: BODIPY-based commercial and novel photosensitizers were successfully linked onto mesoporous silica nanoparticles, further functionalized with PEG and folic acid, enhancing the biocompatibility of the photosensitizers. Different functional groups of MSNs allowed for various options of PS-PEG-FA decoration on the external surface.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Editorial Material
Chemistry, Physical
Raul Montero, Virginia Martinez-Martinez, Asier Longarte, Nerea Epelde-Elezcano, Iker Lamas, Inigo Lopez Arbeloa
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Applied
Ruth Prieto-Montero, Alejandro Prieto-Castaneda, Alberto Katsumiti, Rebeca Sola-Llano, Antonia R. Agarrabeitia, Miren P. Cajaraville, Maria J. Ortiz, Virginia Martinez-Martinez
Summary: Three different molecular designs based on BODIPY dye have been proposed as photosensitizers for photodynamic therapy, showing a good balance between singlet oxygen generation and fluorescence for potential applications. In vitro experiments in HeLa cells were conducted to elucidate the best potential candidate for PDT.
Article
Nanoscience & Nanotechnology
Idoia Castellanos-Rubio, Ander Baron, Oier Luis-Lizarraga, Irati Rodrigo, Izaskun Gil de Muro, Inaki Orue, Virginia Martinez-Martinez, Ainara Castellanos-Rubio, Fernando Lopez-Arbeloa, Maite Insausti
Summary: Nanosystems containing both fluorescent and magnetic modules have great potential in biomedical applications. In this study, a magneto-luminescent system based on Fe3O4 nanoparticles and thermosensitive rhodamine fluorophores was designed, which can self-monitor the degree of hyperthermia. The optimized nanoparticles show suitable fluorescence thermosensitivity and excellent heating capacity within the clinical safety limits, opening up promising avenues for next-generation medical technologies.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Biomaterials
Ruth Prieto-Montero, Aitor Diaz Andres, Alejandro Prieto-Castaneda, Andrea Tabero, Asier Longarte, Antonia R. Agarrabeitia, Angeles Villanueva, Maria J. Ortiz, Raul Montero, David Casanova, Virginia Martinez-Martinez
Summary: The study presents a simple and easily accessible molecular design of heavy atom free photosensitizers for photodynamic therapy. The effect of alkyl groups on the photophysical properties is analyzed experimentally and computationally, providing mechanistic insights. The potential applicability of the most promising compound as a theragnostic agent is demonstrated in in vitro assays.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Review
Biochemistry & Molecular Biology
Ruth Prieto-Montero, Teresa Arbeloa, Virginia Martinez-Martinez
Summary: This review discusses the application of mesoporous silica nanoparticles (MSNs) as photosensitizer carriers for photodynamic therapy (PDT) against cancer. It highlights the use of functionalized MSNs to improve the solubility and selectivity of photosensitizers (PSs), ultimately enhancing the effectiveness of PDT and reducing side effects.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Engineering, Biomedical
Lucia Gandarias, Elizabeth M. Jefremovas, David Gandia, Lourdes Marcano, Virginia Martinez-Martinez, Pedro Ramos-Cabrer, Daniel M. Chevrier, Sergio Valencia, Luis Fernandez Barquin, M. Luisa Fdez-Gubieda, Javier Alonso, Ana Garcia-Prieto, Alicia Muela
Summary: Magnetotactic bacteria are potential theranostic agents due to their magnetic compass, specificity to chemical environments, and natural motility, which enable them to function as nanorobots. They can be tracked and guided to specific regions in the body and activated to generate a therapeutic response.
MATERIALS TODAY BIO
(2023)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Organic
Alberto Blazquez-Moraleja, Larissa Maierhofer, Enrique Mann, Ruth Prieto-Montero, Ainhoa Oliden-Sanchez, Lucia Celada, Virginia Martinez-Martinez, Maria-Dolores Chiara, Jose Luis Chiara
Summary: This article presents a general and robust method for one-step fluorescent labeling of various molecules with C-, N-, P-, O-, S-, or halide-nucleophilic centers. The described strategy allows easy preparation of functional probes for applications in bioimaging, sensing, and therapy. The photophysical properties and preliminary applications of the new probes were also investigated, demonstrating the effectiveness of this method.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Review
Chemistry, Physical
Edurne Avellanal-Zaballa, Leire Gartzia-Rivero, Teresa Arbeloa, Jorge Banuelos
Summary: This review highlights the recent advances in designing efficient and long-lasting tunable dye lasers, covering the visible green region to the far-red-NIR edge using organic molecules. The well-known BODIPY dye was chosen as the photoactive scaffold due to its versatile chemistry. The understanding of the molecular structure, photonic performance, and key photophysical mechanisms is crucial for designing photoactive dyes with improved laser performance.
INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Josue Jimenez, Ruth Prieto-Montero, Sergio Serrano, Patrycja Stachelek, Esther Rebollar, Beatriz L. Maroto, Florencio Moreno, Virginia Martinez-Martinez, Robert Pal, Inmaculada Garcia-Moreno, Santiago de la Moya
Summary: The development from BINOL moieties to O-BODIPY dyes paves the way for photonics applications based on triplet excited states of BODIPY dyes.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Josue Jimenez, Florencio Moreno, Teresa Arbeloa, Trevor A. Cabreros, Gilles Muller, Jorge Banuelos, Inmaculada Garcia-Moreno, Beatriz L. Maroto, Santiago de la Moya
Summary: Efficient circularly polarized luminescence was detected from 4,4-diisopinocampheylBODIPY for the first time, showcasing the feasibility of a new design based on chiral-pool derived chloro(diisopinocampheyl)borane for constructing low-cost CPL-active boron chelates, potentially leading to the development of more affordable organic emitters of circularly polarized light.
ORGANIC CHEMISTRY FRONTIERS
(2021)
