jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Ramesh Vinayagam | Sahana Shetty | Gokulakrishnan Murugesan | Louella Concepta Goveas | Thivaharan Varadavenkatesan | Raja Selvaraj
Source: Scientific Reports (article, 2025-07-21)
Field: Materials Science — Materials Chemistry

Peltophorum pterocarpum flower mediated synthesis of silver nanoparticles and its catalytic degradation of Acid Blue 113 dye In this study, silver nanoparticles (AgNPs) were synthesized using a green method involving Peltophorum pterocarpum flower extract. Successful formation of AgNPs was confirmed by a characteristic surface plasmon resonance peak at 416 nm in the UV-Vis spectrum. SEM and TEM analyses revealed uniformly spheroidal nanoparticles with an average size of 25.77 nm, while EDX confirmed the presence of silver. SAED patterns showed bright spots, indicating a polycrystalline nature, which was further supported by XRD, revealing a crystallite size of 15.58 nm and a lattice parameter of 0.4007 nm. FTIR spectra identified hydroxyl and carboxyl groups as key agents in nanoparticle reduction and stabilization. DLS analysis reported a hydrodynamic diameter of 99.41 nm and a PDI of 0.326, suggesting good monodispersity. The nanoparticles exhibited good stability with a zeta potential of - 14.7 mV. Catalytic studies showed rapid degradation of Acid Blue 113 dye in the presence of NaBH<sub>4</sub>, achieving a rate constant of 0.247 min<sup>-1</sup> at 30 mg/L. These results demonstrate the environmental remediation potential of biogenically synthesized AgNPs and underscore the benefits of sustainable green synthesis approaches for industrial wastewater treatment. Degradation (telecommunications) ; Catalysis ; Chemistry ; Nanoparticle ; Biochemistry ; Nanotechnology ; Materials science ; Computer science Nanoparticles: synthesis and applications
Authors: Navakanth Raju Ramayanam | Sarad Pawar Naik Bukke | Murali Krishna Moka | Himanshu Dehingia | Aditya Bordoloi | Riya Debbarma | Purushothama Reddy Kudumula | Balakrishna Vuyyala | P. Dharani Prasad | Akugizibwe Catherine
Source: Discover Nano (review, 2025-07-14)
Field: Materials Science — Biomaterials

Advances in nanoparticle-based doxorubicin delivery: precision strategies for targeted treatment of triple-negative breast cancer Triple-negative breast cancer (TNBC) is a prevalent and aggressive subtype of breast cancer, accounting for approximately 10-15% of all cases. Its lack of hormone receptors and poor clinical prognosis make targeted therapy particularly challenging, leaving chemotherapy as the mainstay treatment. However, conventional chemotherapy is associated with significant limitations, including cardiotoxicity and inadequate tumor cell specificity. Nanoparticle-based drug delivery systems have emerged as a promising strategy for enhancing the therapeutic efficacy of doxorubicin (DOX) in TNBC. Among these, cell membrane-coated nanoparticles, exosome-sheathed porous silica nanoparticles, and FZD7-targeted nanoparticles have demonstrated substantial potential. These platforms improve drug delivery efficiency while minimizing systemic toxicity and adverse effects. Cell membrane-coated nanoparticles evade immune surveillance, allowing for selective targeting of TNBC cells. Exosome-sheathed nanoparticles facilitate the co-delivery of DOX with other therapeutic agents aimed at inhibiting cancer stem cell-driven epithelial-to-mesenchymal transition. FZD7-targeted nanoparticles enhance DOX accumulation within tumor cells by binding specifically to FZD7 receptors, leading to increased apoptosis and reduced cancer cell metabolic activity. This review aims to examine recent advancements in nanoparticle-based delivery systems for DOX in the treatment of TNBC. It further explores various formulations-including liposomes and polymeric nanoparticles-used for DOX delivery, assesses active and passive targeting strategies, and evaluates the advantages of controlled drug release. The review also identifies current gaps in the literature and proposes future research directions to advance the clinical applicability of these systems. Emerging concepts such as the active transport and retention mechanism and macrophage-mediated delivery systems offer new opportunities to improve tumor localization and retention of DOX-loaded nanoparticles. Collectively, these developments underscore the transformative potential of nanoparticle-based DOX delivery in revolutionizing TNBC therapy. Triple-negative breast cancer ; Doxorubicin ; Breast cancer ; Triple negative ; Medicine ; Cancer ; Cancer research ; Nanotechnology ; Oncology ; Internal medicine ; Materials science ; Chemotherapy Nanoparticle-Based Drug Delivery ; Nanoplatforms for cancer theranostics ; Cancer Treatment and Pharmacology
Authors: Zaiyong Zheng | Shuang Zhu | Xiaobo Wang | Haoran Wu | Min Fu | Houxiang Hu | Zhanjun Gu | Chunxiang Zhang
Source: Small Science (review, 2025-02-20)
Field: Materials Science — Materials Chemistry

Understanding the Mechanism of Cardiotoxicity Induced by Nanomaterials: A Comprehensive Review Nanomaterials have been vastly used in daily life. However, owing to their unique properties, nanomaterials also show potential side effects. Among the various organs affected by nanomaterials, the circulatory system stands out as particularly vulnerable, drawing additional attention to its cardiac toxicity. To address the cardiovascular nanotoxicity and further promote the safe use of nanotechnology, a comprehensive review of the cardiotoxicity induced by nanomaterials is provided. The review begins by identifying the current research trends and hotspots in this field via a bibliometric analysis. Subsequently, based on the objectively obtained research hotspots, the mechanism of cardiovascular nanotoxicity, including exposure route, membrane injury, ion disturbance, oxidative stress, inflammation, and cell death, is reviewed and discussed. Finally, current strategies for the mitigation of nanotoxicity are also proposed. The objective of this review is to assist readers in understanding the mechanism of cardiotoxicity induced by nanomaterials and to facilitate their safe application for human health. Cardiotoxicity ; Nanotoxicology ; Mechanism (biology) ; Nanotechnology ; Risk analysis (engineering) ; Medicine ; Materials science ; Toxicity ; Nanoparticle Nanoparticles: synthesis and applications ; Heavy Metal Exposure and Toxicity
Authors: Xinmiao Wei | Shivom Sharma | Arthur Waeber | Du Wen | Manuele Margni | François Maréchal | Jan Van herle
Source: Resources Conservation and Recycling (article, 2025-01-28)
Field: Materials Science — Materials Chemistry

Environmental implications of solid oxide fuel cell system for hydrogen sustainability Hydrogen, known for its high energy content and clean combustion, is promising in the energy transition. This study explores the environmental impact of a solid oxide fuel cell (SOFC) system. 1 kg of hydrogen production at 1 bar serves as the functional unit. The SOFC system generates hydrogen, electricity, and heat across five modes. Results indicate that the SOFC system achieves a global warming potential of 0.17–9.50 kg CO 2 -eq/FU using the system expansion method. Regional analysis shows that areas with high renewable electricity shares experience increased CO 2 emissions due to functional unit decision. The exergy allocation method is less sensitive to electricity sources and seasonal emission profiles than system expansion. Comparing eight production routes, the SOFC system using biomethane (−5.46 kg CO 2 -eq/FU) outperforms steam methane reforming (11 kg CO 2 -eq/FU) and biomass gasification (1.49 kg CO 2 -eq/FU). These insights are valuable for advancing renewable energy initiatives and effectively mitigating climate change. • Study a novel SOFC system design that generates electricity, hydrogen, and heat. • Details LCA results for climate change, ecosystem quality and human health impacts. • Evaluates emissions using different electricity sources, fuel types, and profiles. • Highlights benefits of system expansion and exergy allocation in LCA multifunctionality. • Provides new insight on hydrogen categorization against conventional methods. Sustainability ; Solid oxide fuel cell ; Waste management ; Fuel cells ; Environmental science ; Hydrogen ; Business ; Natural resource economics ; Engineering ; Chemistry ; Chemical engineering ; Economics ; Ecology Advancements in Solid Oxide Fuel Cells ; Chemical Looping and Thermochemical Processes ; Electrocatalysts for Energy Conversion
Authors: M. S. Anwar | Yong Yu | Muhammad Khalid | Atif Nazar | Bushra Bibi | Muhammad Sarfraz | Bin Zhu | Jianbing Huang | Muhammad Imran Asghar
Source: Energy Materials (article, 2025-05-16)
Field: Materials Science — Materials Chemistry

Electrochemical insights into performance enhancement of protonic ceramic fuel cells with Ba(Zr,Ce,Y)O<sub>3-δ</sub> electrolyte The burgeoning field of protonic ceramic fuel cells (PCFCs) is characterized by significant scientific and technological advancements, particularly with the incorporation of BaZr0.1Ce0.7Y0.2O3-δ (BZCY) as a proton-conducting electrolyte. In the modern energy materials field, the challenge is not only developing new materials but also understanding new mechanisms and gaining an in-depth understanding of their interaction with energy devices. To drive significant advances, it is crucial to address both material-specific challenges and device-level innovations that unlock the full potential of these materials. In this work, we introduced an electrochemical proton injection approach to successfully improve BZCY proton conductivity by an order of magnitude. We also delve into the electrode and interface kinetic processes and their interplay in proton transport within the bulk and grain boundary of the BZCY-electrolyte of PCFCs. These approaches have led to state-of-the-art advances, achieving a proton conductivity of 0.19 S cm-1 and a device peak power density of 943 mW cm-2 at 530 °C. Our results demonstrate that the bulk and grain boundary conduction significantly mitigate polarization losses by four to five orders of magnitude, thereby accelerating the kinetic process and further contributing to improved PCFC performance. The appearance of peaks and alterations in relaxation times further illustrate the electrode reactions and proton transport mechanisms. Beyond providing a comprehensive assessment of current technological progress, this article underscores the transformative potential of electrochemical processes in PCFCs, positioning them as a cornerstone in the quest for sustainable and clean energy technologies. Electrolyte ; Electrochemistry ; Materials science ; Ceramic ; Fuel cells ; Chemical engineering ; Inorganic chemistry ; Chemistry ; Metallurgy ; Electrode ; Physical chemistry ; Engineering Advancements in Solid Oxide Fuel Cells ; Fuel Cells and Related Materials ; Nuclear Materials and Properties
Authors: Haozhe Zheng | Darrin J. Pochan
Source: Faraday Discussions (article, 2025-01-01)
Field: Materials Science — Biomaterials

Spiers Memorial Lecture: Recent advances (and challenges) in supramolecular gels Supramolecular hydrogels are physical hydrogels that are formed by non-covalent interactions such as hydrogen bonding, electrostatic attraction, hydrophobic interactions, and π-π stacking. Compared to typical, chemically cross-linked hydrogels, supramolecular networks commonly have stimuli-responsive behavior including reversibility and injectability, which are being widely studied for uses in drug delivery, tissue engineering, and wound healing. This review highlights recent developments in supramolecular network design and behavior focusing on the different possible molecular building blocks, including peptides, polysaccharides, synthetic polymers, and multicomponent systems. We further discuss self-assembly mechanisms of hydrogel formation, as well as recent advances in stimuli-responsive supramolecular hydrogels triggered by pH, temperature, and light. Advanced characterization techniques such as rheological analysis, spectroscopy, scattering methods, and electron microscopy are summarized to understand hydrogel structure, assembly pathways, and ultimate network properties. This review provides readers with an updated understanding of supramolecular hydrogels and highlights current research presented during the <i>Faraday Discussions</i> meeting on advances in supramolecular gels, promoting the rational design and development of novel materials to address complex biomedical and other technological challenges. Supramolecular chemistry ; Nanotechnology ; Engineering ethics ; Polymer science ; Chemistry ; Engineering ; Materials science ; Organic chemistry ; Molecule Supramolecular Self-Assembly in Materials ; Hydrogels: synthesis, properties, applications ; Supramolecular Chemistry and Complexes
Authors: Xiaohu Ge | Jin Ming | Yundao Jing | Nina Fei | Lingling Guo | Yueqiang Cao | Hao Jiang | Jing Zhang | Gang Qian | Xinggui Zhou | Xuezhi Duan
Source: ACS Catalysis (article, 2025-01-24)
Field: Materials Science — Materials Chemistry

Identification of Intermetallic CoSb as a Cost-Effective and High-Performance Catalyst for Acetylene Semihydrogenation Designing high-efficiency and cost-effective catalysts for acetylene semihydrogenation holds significance for the production of polymer-grade ethylene in the chemical industry but remains difficult. In this study, we demonstrate an efficient synthesis of the CoSb intermetallic catalyst achieved through the in situ capture of molten Sb by Co, aiming to identify the Co-based catalysts for acetylene semihydrogenation. Combined investigations using X-ray diffraction, aberration-corrected high-resolution scanning transmission electron microscopy, and X-ray absorption spectroscopy demonstrate the presence of the pure CoSb intermetallic phase in the synthesized CoSb catalyst. The CoSb intermetallic catalyst, with a well-defined atomic arrangement and fine-regulated electronic properties, delivers 94.0% ethylene selectivity at ∼100% acetylene conversion. Temperature-programmed experiments and in situ spectroscopic studies, combined with theoretical calculations, unravel that the good hydrogenation performance arises from the moderate σ-binding of acetylene and easy desorption of ethylene on the fine-tuned Co active sites by Sb. These insights would be valuable for the creation of high-efficiency catalysts for acetylene semihydrogenation and potentially for other alkynes as well. Catalysis ; Acetylene ; Intermetallic ; Materials science ; Identification (biology) ; Chemical engineering ; Nanotechnology ; Chemistry ; Organic chemistry ; Metallurgy ; Alloy Catalytic Processes in Materials Science ; Catalysis and Oxidation Reactions ; Catalysis and Hydrodesulfurization Studies
Authors: Xianyang Long | Dong Zhu | Shifa Zhu
Source: ACS Catalysis (article, 2025-02-28)
Field: Chemistry — Organic Chemistry

Cobalt-Catalyzed Chemoselective and Divergent Synthesis of Vinylsilanes through Hydrosilylation of Acetylene Vinylsilanes have significant value in organic synthesis, materials design, and organometallic chemistry. Compared to traditional methods for the synthesis of vinyl- or multivinylsilanes using dangerous multichlorosilanes and stoichiometric vinyl Grignard reagents, the earth-abundant transition-metal-catalyzed hydrosilylation of acetylene with multihydrosilane represents a more straightforward and atom-economical approach. However, selective and controllable acetylene hydrosilylation using multihydrosilanes is still challenging. Herein, we report a cobalt-catalyzed selective and controllable acetylene hydrosilylation with various hydrosilanes (including primary, secondary, and tertiary silanes). Mono-, bis-, trivinylsilane, or bis(silane)s are produced by a simple adjustment of the conditions. Both the reactivity and selectivity can be fine-tuned by changing the ligands, which allows for the highly selective and divergent synthesis of vinylsilanes. Detailed mechanistic studies indicate that the primary or secondary silane-assisted reduction of CoII to produce an active low-valence CoI intermediate is a prerequisite for the catalytic reaction. The CoII reduction is also required for the reaction of the bulky and less reactive tertiary silanes. The obtained vinylsilanes and bis(silane)s have potential as silicon-containing monomers for the synthesis of organosilicon polymers. Hydrosilylation ; Catalysis ; Cobalt ; Acetylene ; Chemistry ; Organic chemistry Organoboron and organosilicon chemistry ; Catalytic Cross-Coupling Reactions ; Chemical Synthesis and Reactions
Authors: Kamal Choudhary
Source: The Journal of Physical Chemistry Letters (article, 2025-07-01)
Field: Materials Science — Materials Chemistry

MicroscopyGPT: Generating Atomic-Structure Captions from Microscopy Images of 2D Materials with Vision-Language Transformers Determining complete atomic structures directly from microscopy images remains a long-standing challenge in materials science. MicroscopyGPT is a vision-language model (VLM) that leverages multimodal generative pretrained transformers to predict full atomic configurations, including lattice parameters, element types, and atomic coordinates, from scanning transmission electron microscopy (STEM) images. The model is trained on a chemically and structurally diverse data set of simulated STEM images generated using the AtomVision tool and the JARVIS-DFT as well as the C2DB two-dimensional (2D) materials databases. The training set for fine-tuning comprises approximately 5000 2D materials, enabling the model to learn complex mappings from image features to crystallographic representations. I fine-tune the 11-billion-parameter LLaMA model, allowing efficient training on resource-constrained hardware. The rise of VLMs and the growth of materials data sets offer a major opportunity for microscopy-based analysis. This work highlights the potential of automated structure reconstruction from microscopy, with broad implications for materials discovery, nanotechnology, and catalysis. Microscopy ; Transformer ; Materials science ; Optics ; Computer science ; Artificial intelligence ; Physics ; Engineering ; Electrical engineering Machine Learning in Materials Science ; Electronic and Structural Properties of Oxides ; Electron and X-Ray Spectroscopy Techniques
Authors: Xiaoqi Zheng | Xuan Yang | Hao Xie | Yuan Li | Xinyi Li | Binbin Zhou
Source: Journal of Food Composition and Analysis (article, 2025-02-12)
Field: Chemistry — Analytical Chemistry

A molecularly imprinted electrochemical sensor based on rGO@rGNR modification for zearalenone determination Zearalenone ; Electrochemical gas sensor ; Electrochemistry ; Environmental chemistry ; Chemistry ; Aflatoxin ; Food science ; Electrode Analytical chemistry methods development ; Advanced biosensing and bioanalysis techniques ; Analytical Chemistry and Sensors
Authors: Junjie Ding | Ze Huang | Duoteng Zhang | Yunwei Qu | Shiji Zhang | Congcong Zhang | Bin Fang | Lin Li | Wei Huang
Source: Chemical Society Reviews (review, 2025-01-01)
Field: Materials Science — Materials Chemistry

Rational structural design of aromatic Azo photoactive small molecules for biomedical applications Aromatic Azo molecules, including azobenzenes (Ph-NN-Ph) and heteroaryl Azo (Het-NN-Ph or Het-NN-Het), have emerged as versatile and high-performing photoactive switches for biomedical applications. Despite decades of extensive research on aromatic Azo as molecular photoswitches, the full translational potential of these small molecules remains underexploited. This review systematically outlines structural design strategies for aromatic Azo, spanning from functional substituent engineering to π-conjugation modulation, to fine-tune its photophysical properties. We summarize state-of-the-art synthetic methodologies for crafting multifunctional aromatic Azo frameworks, contrast the distinct isomerization mechanisms of azobenzenes <i>versus</i> heteroaryl Azo derivatives, and highlight the latest biomedical application advances, including biological imaging and detection, drug delivery, photopharmacology, phototherapy, miscellanea photo responsive biomaterials and constructs, and control in chemical biology. Furthermore, we discuss clinical translation challenges and opportunities in this field, proposing innovative strategies to address critical issues. This review aims to substantially advance the burgeoning field of aromatic Azo photoactive small molecules for biomedical applications. Small molecule ; Rational design ; Isomerization ; Substituent ; Photoisomerization ; Molecule Photochromic and Fluorescence Chemistry ; Nanoplatforms for cancer theranostics ; Luminescence and Fluorescent Materials
Authors: Rasmirekha Pattanaik | Rishabh Kamal | Debapriya Pradhan | S. Dash
Source: Journal of Metals Materials and Minerals (article, 2025-02-25)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Efficacy of BiFeO\(_{3}\ and Bi\(_{4}\Ti\(_{3}\O\(_{12}\ towards photocatalytic degradation of MG and MB dyes: A comparative study under solar irradiation Bismuth-based perovskite material has been used as promising photocatalysts for photo catalytic degradation of toxic dyes with tailored crystallites and fine-tuned band gap for superior activity. BiFeO3 and Bi4Ti3O12 were synthesized by a simple sol-gel method and their crystal structure, morphology, and optical property were characterized by XRD, SEM, TEM, FTIR, EDS and UV–DRS. The XRD pattern exhibits the formation of rhombohedral and orthorhombic phase of bismuth ferrite and bismuth titanate. The study confirms the formation of non-uniform BiFeO3 and Bi4Ti3O12 nanoparticles with uniform particle distribution, with band gap energy (Eg) of 2.2 eV and 2.9 eV, respectively, from UV-DRS analyses and Tauc Plot. The study examined the photocatalytic degradation of a prepared catalyst for MG and MB dyes by altering parameters like solution pH, catalyst dose, and agitation time. The results indicated that BiFeO3 exhibited higher degrading efficiency compared to Bi4Ti3O12 under similar experimental conditions. BiFeO3 degraded more than @ 80% of both MG and MB dyes with 0.4 mg∙L‒1 within 90 min compared to more than @ 74% for Bi4Ti3O12 having 0.6 mg∙L‒1 catalyst taken in 20 mL of 20 ppm dye concentration in 60 min with prevailing parameter conditions. The higher efficacy of BiFeO3 may be contributed to the Eg that makes the catalyst more active under solar spectrum. The degradation mechanism involved photoinduced electron/hole pairs producing active radical species, with kinetics following a pseudo-first order rate and photocatalyst stability studied through five continuous runs. The study found that BiFeO3 outperforms Bi4Ti3O12 in reducing cationic dyes and suggests them as potential waste water treatment alternatives. Materials science ; Photocatalysis ; Degradation (telecommunications) ; Irradiation ; Nuclear chemistry ; Chemical engineering ; Organic chemistry ; Catalysis ; Electronic engineering Multiferroics and related materials ; Advanced Photocatalysis Techniques ; Transition Metal Oxide Nanomaterials