Samson Prince Hiruthyaswamy and Kanagavel Deepankumar
{"title":"Suckerin based biomaterials for wound healing: a comparative review with natural protein-based biomaterials","authors":"Samson Prince Hiruthyaswamy and Kanagavel Deepankumar","doi":"10.1039/D4MA01005A","DOIUrl":"https://doi.org/10.1039/D4MA01005A","url":null,"abstract":"<p >Suckerins, derived from the sucker ring teeth of cephalopods, have emerged as promising biomaterials for wound healing due to their unique structural properties and versatility. Suckerins exhibit a wide range of elasticity, from soft hydrogels to stiff films, controlled by β-sheet content and induced by di-tyrosine crosslinking. Compared to other natural protein-based materials, suckerins offer advantages in terms of mechanical strength, the ability to form robust supramolecular structures, biocompatibility, excellent thermoplastic property and underwater adhesion, making them suitable for wound healing and various biomedical applications. However, the full potential of suckerins in wound healing is yet to be explored. This paper aims to provide a comprehensive understanding of the structural properties, recent findings, advantages, succinylation of biomaterials and applications of natural protein-based biomaterials such as mussel adhesive protein, collagen, gelatin, silk fibroin and chitosan in wound healing, and how they stand in comparison to suckerin protein-based materials. This comprehensive review could pave the way for the development of more effective wound healing therapies. Future research directions are also discussed, emphasizing the need for a deeper understanding of the supramolecular interactions stabilizing suckerins and their potential applications in medicine, tissue engineering, nanotechnology and gaps in other protein-based materials in the context of wound healing.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1262-1277"},"PeriodicalIF":5.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01005a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Introduction to advancements in synthesis of high-performance materials from Nature’s building blocks","authors":"Eleftheria Roumeli and Samantha L. Kristufek","doi":"10.1039/D5MA90005K","DOIUrl":"https://doi.org/10.1039/D5MA90005K","url":null,"abstract":"<p >The growing environmental concerns associated with traditional petroleum-based polymers have intensified the search for sustainable alternatives. This themed collection highlights innovative approaches in polymer science that prioritize sustainability without compromising performance. The featured articles encompass a spectrum of strategies, from the utilization of bio-derived monomers and biopolymers to the engineering of dynamic, self-healing materials.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 3","pages":" 884-886"},"PeriodicalIF":5.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma90005k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Romana Malečková, Šárka Tumová, Petr Smísitel, Jiří Smilek, Helena Šimůnková, Michaela Pešková, Lubomír Kubáč, Jaromír Hubálek, Jan Víteček, Martin Vala and Martin Weiter
{"title":"Novel conductive PEDOT:DBSA hydrogels with tuneable properties for bioelectronics†","authors":"Romana Malečková, Šárka Tumová, Petr Smísitel, Jiří Smilek, Helena Šimůnková, Michaela Pešková, Lubomír Kubáč, Jaromír Hubálek, Jan Víteček, Martin Vala and Martin Weiter","doi":"10.1039/D4MA00987H","DOIUrl":"https://doi.org/10.1039/D4MA00987H","url":null,"abstract":"<p >Conductive hydrogels represent a promising class of novel materials to interface the human body with electronics; however, there is still a high demand for hydrogels that would truly meet the conductivity requirements for efficient signal transmission between the tissues and the device. To address this demand, herein we report the preparation of a novel pure conductive hydrogel based on PEDOT:DBSA at room temperature; thus, we offer an efficient alternative to the commonly used PEDOT:PSS, whose biocompatibility was proven to be limited. With thorough characterization, this work also contributes towards a better understanding of the relationship between the hydrogel structure and electrical properties. The mechanical strength of the novel hydrogel network is tuneable and can be easily tailored to the needs of a given application. Together with an exceptionally low value of Young's modulus, this material provides mechanical properties matching those of soft tissues. Biocompatibility tests confirmed excellent compatibility with murine endothelial cells. The total conductivity of the hydrogel is sufficient for cell-targeted bioelectronic applications, such as cell stimulation; moreover, low impedance was determined at 1 Hz, suggesting that the PEDOT:DBSA hydrogel might offer a truly functional interface between a biological tissue and an electronic device.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1278-1287"},"PeriodicalIF":5.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma00987h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laxmidhar Sahoo, Swayam Aryam Behera, P. Ganga Raju Achary and S. K. Parida
{"title":"Impedance spectroscopy and optical properties of lanthanum-modified Bi2FeMnO6 for NTC thermistor applications","authors":"Laxmidhar Sahoo, Swayam Aryam Behera, P. Ganga Raju Achary and S. K. Parida","doi":"10.1039/D4MA00953C","DOIUrl":"https://doi.org/10.1039/D4MA00953C","url":null,"abstract":"<p >The double perovskite Bi<small><sub>1.75</sub></small>La<small><sub>0.25</sub></small>FeMnO<small><sub>6</sub></small> (BLFMO) ceramic was prepared by a solid-state reaction method and characterized by different techniques such as X-ray diffraction, scanning electron microscope, energy dispersive X-ray, transmission electron microscope, and optical, dielectric, and electrical property analysis. The synthesized material has a monoclinic crystal structure with an average crystallite size of 63.7 nm and lattice strain of 0.0013, as revealed by X-ray diffraction (XRD) data. The surface morphology of the prepared sample was studied by the scanning electron microscope (SEM) technique, which shows spherical-shaped well-developed grains having clear grain boundaries with an average grain size of 55.6 μm. The EDX spectrum and elemental color mapping checked the purity and homogeneity of the sample. The transmission electron microscope (TEM) technique displayed that the particles are well connected in the synthesized material, which may be a possible reason for the better physical properties. The Brunauer–Emmet–Teller (BET) surface area was 0.371 m<small><sup>2</sup></small> g<small><sup>−1</sup></small>, with a pore volume of 7.202 cc g<small><sup>−1</sup></small> and an average pore diameter of 19.635 Å. The optical properties were studied from Fourier transform infrared (FTIR) and ultraviolet diffuse reflectance spectroscopy (UV-DRS). The FTIR spectrum revealed the vibrational modes of all the constituent elements in the sample. The direct bandgap energy of 2.71 eV was calculated from the UV-DRS spectrum, which is suitable for optoelectronic device applications. The sample exhibited high dielectric constant, low loss (from dielectric study), negative temperature coefficient of resistance behavior (from impedance study), non-Debye relaxation (from modulus study), and a thermally activated conduction mechanism (from ac conductivity study). The occurrence of Maxwell–Wagner dispersion was known from the dielectric study. The semi-circular arcs in the Nyquist and Cole–Cole's plots explained their semi-conducting nature. The resistance <em>versus</em> temperature curve indicated the semiconducting nature of the sample and its potential application as a negative temperature coefficient (NTC) thermistor. Thus, the prepared sample has unique characteristics for different applications related to optoelectronics and sensors.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1455-1467"},"PeriodicalIF":5.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma00953c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianlong Kang, Yiduo Wang, Li Zhou, Ahmed Asad, Defeng Xu, Zhihui Chen, Yingwei Wang, Jun He and Si Xiao
{"title":"Layered NbOCl2 kinetic degradation mechanism and improved second-order nonlinear optical responses†","authors":"Jianlong Kang, Yiduo Wang, Li Zhou, Ahmed Asad, Defeng Xu, Zhihui Chen, Yingwei Wang, Jun He and Si Xiao","doi":"10.1039/D4MA00735B","DOIUrl":"https://doi.org/10.1039/D4MA00735B","url":null,"abstract":"<p >NbOCl<small><sub>2</sub></small> exhibits exceptional nonlinear optical response, particularly for second harmonic generation (SHG). However, the environmental degradation mechanism of NbOCl<small><sub>2</sub></small> remains incompletely understood, posing challenges to device stability and optimization. This work demonstrates the kinetic degradation mechanism of 2D layered NbOCl<small><sub>2</sub></small> and proposes a strategy to improve the stability of nano-sized materials. It is primarily driven by the preferential replacement of Cl<small><sup>−</sup></small> ions in NbOCl<small><sub>2</sub></small> with OH<small><sup>−</sup></small> ions, which is regulated by storage temperature and H<small><sup>+</sup></small> ions in the solution. Notably, the SHG response can be tuned effectively by altering the excitation power, degradation time, and irradiation wavelength. Additionally, the significant SHG of the NbOCl<small><sub>2</sub></small> nanosheets is remarkably stable when protected by poly methyl methacrylate. These findings offer novel insights into kinetic degradation mechanisms and strategies to improve the stability of NbOCl<small><sub>2</sub></small>.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 3","pages":" 954-962"},"PeriodicalIF":5.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma00735b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chengjun Wu, Graham W. Tindall, Carter L. Fitzgerald, Mark C. Thies and Mark E. Roberts
{"title":"Decoupling the role of lignin, cellulose/hemi-cellulose, and ash on ZnCl2-activated carbon pore structure†","authors":"Chengjun Wu, Graham W. Tindall, Carter L. Fitzgerald, Mark C. Thies and Mark E. Roberts","doi":"10.1039/D4MA01234H","DOIUrl":"https://doi.org/10.1039/D4MA01234H","url":null,"abstract":"<p >Activated carbon (AC), generally synthesized from fossil fuels or biomass waste, is a crucial form of porous carbon used for the purification of gases and liquids. Its key performance metrics vary widely when produced from biomass because of the differing amounts of cellulose, hemicellulose, lignin, and mineral/ash content. In this study, we adapted the Aqueous Lignin Purification using Hot Agents (ALPHA) process, originally developed for purifying lignin-rich waste streams, to control the sugars (as cellulose/hemicellulose) and mineral/ash content of a given biomass. Biomass samples having a wide range of sugars (0.01–56 wt%) and mineral/ash compositions (0.01–7.1 wt%) were generated from a single, hybrid poplar cultivar and used to create AC using ZnCl<small><sub>2</sub></small>-impregnation and low-temperature carbonization. Strong correlations were developed between the biomass sugars and mineral/ash composition and the AC surface area, pore size, and pore distribution, with the maximum surface area of 2500 m<small><sup>2</sup></small> g<small><sup>−1</sup></small> being obtained from the precursor with the highest level (56 wt%) of sugars. These findings may provide a path to predicting the properties of AC from biomasses encompassing a wide range of compositions, and furthermore, select AC precursors for target applications.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1431-1441"},"PeriodicalIF":5.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01234h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sujan Sk, Arnob Chakrovorty, Asmita Samadder and Manindranath Bera
{"title":"A family of zinc compounds of an anthracene-appended new multifunctional organic scaffold as potent chemotherapeutics against cervical cancer†","authors":"Sujan Sk, Arnob Chakrovorty, Asmita Samadder and Manindranath Bera","doi":"10.1039/D4MA01278J","DOIUrl":"https://doi.org/10.1039/D4MA01278J","url":null,"abstract":"<p >A family of biologically active novel zinc(<small>II</small>) compounds, namely [Zn(ahpa)(Cl)(H<small><sub>2</sub></small>O)] (<strong>1</strong>), [Zn(ahpa)(NO<small><sub>3</sub></small>)(H<small><sub>2</sub></small>O)] (<strong>2</strong>) and [Zn(ahpa)(H<small><sub>2</sub></small>O)<small><sub>2</sub></small>](ClO<small><sub>4</sub></small>) (<strong>3</strong>), of an anthracene-appended multifunctional organic scaffold, <strong>Hahpa</strong> (<strong>Hahpa</strong> = 3-((anthracene-10-ylmethyl)(2-hydroxyethyl)amino)propanoic acid), were synthesized and characterized. Synthesis of <strong>1–3</strong> was accomplished by reacting <strong>Hahpa</strong> with zinc(<small>II</small>) precursors such as ZnCl<small><sub>2</sub></small>, Zn(NO<small><sub>3</sub></small>)<small><sub>2</sub></small>·6H<small><sub>2</sub></small>O and Zn(ClO<small><sub>4</sub></small>)<small><sub>2</sub></small>·6H<small><sub>2</sub></small>O, respectively, in the presence of NaOH at room temperature. Compounds <strong>1–3</strong> were characterized by elemental analysis, FTIR, electronic absorption and emission spectroscopy, molar conductivity analysis, and TGA studies. Elemental analysis, molar conductivity analysis, and UV-vis and fluorescence titration results unambiguously confirm the integrity of the compound frameworks. Moreover, the structures of <strong>1–3</strong> were ascertained by density functional theory (DFT) computation using the B3LYP/6-311G level of theory, indicating a distorted square pyramidal geometry around the zinc centers. Furthermore, the anticancer properties of <strong>1–3</strong> were assessed in human cervical cancer (HeLa) cell lines, revealing a significantly high cytotoxicity with IC<small><sub>50</sub></small> values ranging from 1.09 to 2.11 μM. They showed high selectivity between the normal and cancer cells despite this potency. The anticancer activity of <strong>1–3</strong> was possibly due to an increase in cellular reactive oxygen species (ROS), destruction of cell membrane integrity, and DNA damage occurring <em>via</em> nuclear condensation. Electronic absorption spectroscopy, ethidium bromide (EB) displacement assay and circular dichroism (CD) spectroscopy confirmed the binding affinity and binding mode of <strong>1–3</strong> with DNA in a dose-dependent manner. All three compounds were also able to modulate the expression of p53 tumour suppressor protein and exhibited antitumorigenic activity, whereas their activity remained unaltered in the normal cell. When a comparative assessment of anticancer properties of <strong>1–3</strong> was made, <strong>1</strong> showed a higher cytotoxicity towards the cancer cells in comparison to <strong>2</strong> and <strong>3</strong>.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1478-1496"},"PeriodicalIF":5.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01278j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Achieving 27.20% efficiency for a lead-free double perovskite solar cell with all inorganic Cs2BiAgI6 using AZO UTL as a passivation layer†","authors":"Aminreza Mohandes and Mahmood Moradi","doi":"10.1039/D4MA01280A","DOIUrl":"https://doi.org/10.1039/D4MA01280A","url":null,"abstract":"<p >A major challenge in the commercialization of perovskite solar cells (PSCs) is the presence of toxic metals, like lead, in their composition. Compared with conventional lead halide perovskites, double halide perovskites have garnered significant interest owing to their reduced toxicity, adjustable bandgap, structural flexibility, and enhanced stability. This study focuses on evaluating a lead-free Cs<small><sub>2</sub></small>BiAgI<small><sub>6</sub></small>-double perovskite solar cell (DPSC) using a one-dimensional solar cell capacitance simulator (SCAPS-1D) with a bilayer ZnO/AZO electron transport layer (ETL) and ZnO ETL, along with various hole transport layers (HTLs) for the first time. The selected HTLs included CBTS, Cu<small><sub>2</sub></small>O, CuAlO<small><sub>2</sub></small>, CZTS, CuSCN, spiro-OMeTAD, MoO<small><sub>3</sub></small>, and V<small><sub>2</sub></small>O<small><sub>5</sub></small>. Various factors, such as energy band alignment, recombination and generation rates, absorber thickness, defect and doping densities for all layers, energy levels of ETLs and HTL, interfacial defect densities, back metal contact, and operating temperature, were examined for improving the performance of DPSC. This study was aimed at enhancing the efficiency and deepening our understanding of the electron transport mechanisms in Cs<small><sub>2</sub></small>BiAgI<small><sub>6</sub></small>-DPSCs. The research findings suggested that V<small><sub>2</sub></small>O<small><sub>5</sub></small> and ZnO/AZO were the most suitable materials for the HTL and ETL, respectively, among the various options considered. Therefore, we utilized ITO/ZnO/AZO/Cs<small><sub>2</sub></small>BiAgI<small><sub>6</sub></small>/V<small><sub>2</sub></small>O<small><sub>5</sub></small>/Au as the required DPSC. To boost the performance of the DPSC, electron–hole pair handling at the ETL/perovskite interface was optimized by adding a 10 nm AZO UTL, thereby enhancing the ZnO/double perovskite interface properties. The bilayer structure of ZnO/AZO offered advantages such as efficient electron extraction and minimal interfacial recombination owing to its enhanced energy level alignment and defect passivation. After optimizing these parameters, the system with the ZnO/AZO bilayer ETL achieved an efficiency of 27.20%, along with a <em>V</em><small><sub>oc</sub></small> of 1.3221 V, <em>J</em><small><sub>sc</sub></small> of 23.84 mA cm<small><sup>−2</sup></small>, and FF of 86.28%. Thus, this work presents a straightforward and promising approach for fabricating photovoltaic devices, particularly for various types of double perovskites, with favorable charge transport layers and recombination properties. Furthermore, these findings offer theoretical guidance to improve the efficiency of Cs<small><sub>2</sub></small>BiAgI<small><sub>6</sub></small>-based photovoltaic solar cells (DPSCs) and facilitate the widespread adoption of eco-friendly and stable perovskites.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1520-1539"},"PeriodicalIF":5.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01280a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yosra Bahrouni, Ikhlas Kachou, Kamel Saidi, Tarak Kallel, Mohamed Dammak, Irene Mediavilla and Juan Jiménez
{"title":"Enhancing the luminescence intensity of Eu3+-activated NaYb(MoO4)2 phosphors through bismuth doping: Judd–Ofelt analysis, lighting, and temperature-sensing applications†","authors":"Yosra Bahrouni, Ikhlas Kachou, Kamel Saidi, Tarak Kallel, Mohamed Dammak, Irene Mediavilla and Juan Jiménez","doi":"10.1039/D4MA01167H","DOIUrl":"https://doi.org/10.1039/D4MA01167H","url":null,"abstract":"<p >In this work, we investigate the impact of Bi<small><sup>3+</sup></small> doping on the luminescence properties of Eu<small><sup>3+</sup></small>-activated NaYb(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small> phosphors synthesized <em>via</em> the conventional solid-state reaction method. Rietveld refinement of X-ray diffraction data confirmed the tetragonal crystal structure (space group <em>I</em>4<small><sub>1</sub></small>/<em>a</em>) for all samples. UV-visible absorption spectroscopy revealed an indirect bandgap of approximately 3.25 eV for the 5% Bi<small><sup>3+</sup></small>-doped sample. Under UV excitation, intense red emissions originating from the <small><sup>5</sup></small>D<small><sub>0</sub></small> → <small><sup>7</sup></small>F transitions of Eu<small><sup>3+</sup></small> ions were observed at 589 nm, 613 nm, 652 nm, and 700 nm, along with near-infrared emission from Yb<small><sup>3+</sup></small> at 997 nm, sensitized by the MoO<small><sub>4</sub></small><small><sup>2−</sup></small> group. Photoluminescence (PL) analysis demonstrated an enhancement in the Eu<small><sup>3+</sup></small> emission intensity with increasing Bi<small><sup>3+</sup></small> concentration, reaching an optimum at 5% Bi<small><sup>3+</sup></small> doping. Chromaticity coordinates confirmed a significant enhancement in the red emission intensity upon Bi<small><sup>3+</sup></small> incorporation. Judd–Ofelt parameters and crystal field parameters were determined, revealing that Bi<small><sup>3+</sup></small> doping influences the local environment of Eu<small><sup>3+</sup></small> ions, impacting the luminescence properties. Furthermore, we explored the potential of Bi<small><sup>3+</sup></small>/Eu<small><sup>3+</sup></small> codoped NaYb(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small> for optical thermometry based on the fluorescence intensity ratio (FIR) technique, achieving a high relative sensitivity (<em>S</em><small><sub>r</sub></small> = 1.14% K<small><sup>−1</sup></small>). This work demonstrates the influence of Bi<small><sup>3+</sup></small> doping on the luminescence properties of Eu<small><sup>3+</sup></small> in NaYb(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small> and explores its potential for applications in temperature sensing and other optoelectronic devices.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 4","pages":" 1307-1318"},"PeriodicalIF":5.2,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01167h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tommaso Sturaro, Mattia Benedet, Mattia Brugia, Giacomo Marchiori, Gian Andrea Rizzi, Alberto Gasparotto, Davide Barreca, Oleg I. Lebedev and Chiara Maccato
{"title":"Nano- and ultra-dispersed ZnO and ZnFe2O4 on graphitic carbon nitride as photoelectrocatalysts for the ethanol oxidation reaction†","authors":"Tommaso Sturaro, Mattia Benedet, Mattia Brugia, Giacomo Marchiori, Gian Andrea Rizzi, Alberto Gasparotto, Davide Barreca, Oleg I. Lebedev and Chiara Maccato","doi":"10.1039/D4MA01114G","DOIUrl":"https://doi.org/10.1039/D4MA01114G","url":null,"abstract":"<p >The sustainable production of hydrogen fuel through biomass-derived ethanol valorization is directly dependent on the availability of eco-friendly and efficient electrocatalysts for possible real-world end-uses. To this aim, graphitic carbon nitride (gCN) supported on flexible carbon cloths <em>via</em> electrophoretic deposition was functionalized with nano- and ultra-dispersed ZnO and ZnFe<small><sub>2</sub></small>O<small><sub>4</sub></small> co-catalysts by cold plasma sputtering. The developed materials were tested for the first time as electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media, paving the way to the implementation of promising and inexpensive noble metal-free systems for green energy generation.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 3","pages":" 963-968"},"PeriodicalIF":5.2,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01114g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}