Article
Chemistry, Multidisciplinary
Yanzhao Pang, Mingliang Jin
Summary: A highly aligned AgNW array film was prepared using a self-assembly method, which showed excellent signal reproducibility and detection ability at low concentrations. The uniform distribution of hot spots inside the AgNW substrate amplified the SERS signal.
Review
Biochemistry & Molecular Biology
Antonio Sasso, Angela Capaccio, Giulia Rusciano
Summary: This review focuses on the recent studies conducted by our group in the past decade, where novel nanofabrication techniques were successfully applied to SERS and TERS experiments for studying bio-systems and molecular species of environmental interest.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Shuang Lin, Haoyu Guan, Yuqi Liu, Shinian Huang, Junming Li, Wuliji Hasi, Yizhuo Xu, Jixin Zou, Bin Dong
Summary: Tuning and controlling the plasmon coupling of noble metal nanoparticles are crucial for enhancing their responses in near-field and far-field. A novel heterogeneous plasmonic assembly with a controllable hot spot model was proposed in this work, showing significant enhancement for SERS behavior in point-to-facet hotspots. The binary assemblies of Au NS doping in Au@Ag NCs demonstrate excellent sensitivity and high reproducibility in the identification of ketamine, indicating a new avenue for fabricating plasmonic metal materials with collective LSPR properties and sensitive SERS behavior.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mathias Charconnet, Christian Kuttner, Javier Plou, Juan Luis Garcia-Pomar, Agustin Mihi, Luis M. Liz-Marzan, Andreas Seifert
Summary: This study demonstrates the fabrication of superlattices by templated self-assembly of gold nanoparticles on a flexible support, with tunable lattice-plasmon resonances by means of macroscopic strain. It shows that the highest SERS performance is achieved by matching the lattice plasmon mode to the excitation wavelength, by post-assembly fine-tuning of long-range structural parameters. Both asymmetric and symmetric lattice deformations can be used to adapt a single lattice structure to both red-shifted and blue-shifted excitation lines.
Article
Chemistry, Analytical
Di Liu, Huimin Gao, Wenji Jiang, Su Yan, Hao Liu, Junjie Chen, Sisi Wen, Wei Zhang, Xu Wang, Bing Zhao, Wei Song
Summary: In this study, three-dimensional Ag aerogel-supported Hg single-atom catalysts were used as an efficient SERS substrate for monitoring enhanced oxidase-like reactions. The effect of Hg2+ concentrations on the SERS properties of 3D Hg/Ag aerogel networks was investigated, and an optimized addition of Hg2+ resulted in specific enhancement. The formation of Ag-supported Hg SACs was confirmed using HAADF-STEM imaging and XPS measurement, and the oxidase-like catalytic mechanism of Hg/Ag SACs was revealed using DFT. This research provides a mild synthetic strategy for fabricating Ag aerogel-supported Hg single atoms with promising prospects in various catalytic fields.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Sihai Luo, Andrea Mancini, Feng Wang, Junyang Liu, Stefan A. Maier, John C. de Mello
Summary: This paper presents a high-throughput method for fabricating large-area arrays of triangular nanogaps with precise control over the gap size, which can significantly enhance the surface-enhanced Raman spectroscopy (SERS) detection. The method has important implications for practical applications.
Article
Chemistry, Multidisciplinary
Lei Ouyang, Tobias Meyer-Zedler, Kel-Meng See, Wei-Liang Chen, Fan-Cheng Lin, Denis Akimov, Sadaf Ehtesabi, Martin Richter, Michael Schmitt, Yu-Ming Chang, Stefanie Grafe, Jurgen Popp, Jer-Shing Huang
Summary: This study investigates the enhancement effect of plasmonic gratings in nonlinear surface-enhanced coherent anti-Stokes Raman scattering (SECARS) using the platform of plasmonic Doppler grating (PDG). The PDGs spatially separate the input and output enhancement, allowing for observation and comparison of overall enhancement from different combinations of individual input and output beams. The results indicate that enhancement in the pump and anti-Stokes beams plays a more critical role in the overall enhancement than that in the Stokes beam.
Article
Chemistry, Multidisciplinary
I. A. Brezestean, N. Tosa, A. Falamas, D. Cuibus, C. M. Muntean, A. Bende, B. Cozar, C. Berghian-Grosan, C. Farcau
Summary: This study reports on the use of self-assembled colloidal nanoparticle films for Surface Enhanced Raman Spectroscopy (SERS) analysis of pesticides. The results demonstrate the high sensitivity and selectivity of this technique, making it suitable for applications in the food industry and environmental monitoring.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Environmental
Changmin Park, Dohyun Lim, Seung Mo Kong, Nam-Il Won, Yang Ho Na, Dongha Shin
Summary: This study develops a cost-effective and time-efficient method for detecting nanoplastics, which have received significant attention due to their potential harm to the water environment. The study introduces a substrate that exhibits Surface-enhanced Raman scattering (SERS) activity and allows for the detection of nanoplastics on the substrate using darkfield-based strategy. The technique enables point-by-point detection of single nanoplastics and has universal application in establishing a global map of nanoplastics and advancing our understanding of the environmental life cycle of plastics.
Article
Chemistry, Physical
Mathias Charconnet, Matiyas Tsegay Korsa, Soren Petersen, Javier Plou, Christoph Hanske, Jost Adam, Andreas Seifert
Summary: Periodic superlattices of noble metal nanoparticles with well-defined strong hotspots are achieved by a chemically driven, templated self-assembly process. This technology allows for the assembly of nanoparticles with various shapes, resulting in homogeneous nanoparticle clusters on a centimeter scale. Electromagnetic simulations and experimental measurements demonstrate excellent agreement, confirming the specific near-field behavior and surface-enhanced Raman scattering enhancement factors of the periodic arrays of nanoparticles.
Article
Chemistry, Multidisciplinary
Tiago Fernandes, Helena I. S. Nogueira, Carlos O. Amorim, Joao S. Amaral, Ana L. Daniel-da-Silva, Tito Trindade
Summary: This study focuses on the use of surface-enhanced Raman scattering (SERS) for detecting trace water contaminants in water quality monitoring, with the design of novel nanostructures through different chemical strategies and functionalities integration.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Editorial Material
Chemistry, Multidisciplinary
T. Fernandes, H. I. S. Nogueira, C. O. Amorim, J. S Amaral, A. L. Daniel-da-Silva, T. Trindade
Summary: This study investigates chemical strategies for preparing magneto-plasmonic nanostructures for SERS detection in water quality monitoring. Three chemical routes were explored, leading to different ways of evaluating SERS detection using distinct interfaces.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Puran Pandey, Kihoon Shin, A-Rang Jang, Min-Kyu Seo, Woong-Ki Hong, Jung Inn Sohn
Summary: This study demonstrates highly sensitive multiplex-detection of organic dyes using SERS substrates with self-assembly arrays of porous AuAg alloy (p-AuAg) NPs, showing excellent enhancement, reproducibility, and detection limits. The high-density built-in and inter nanogaps in the self-assembly arrays of p-AuAg NPs contribute to the significant enhancement of electromagnetic field, supporting potential pathways for practical SERS applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yaping Tian, Xinming Nie, Xun Wang, Zhengyi Chen, Si Chen, Shasha Lv, Shoufeng Tang
Summary: This study successfully detected methanol in alcoholic beverages by coupling the catalytic strategy with a thermal purge separation and enrichment device. A higher sensitivity MBTH was selected for the derivatization operation in low-alcohol beverages, while acetylacetonate derivatization was used in high-alcohol beverages to avoid interference. This method is convenient and rapid.
SURFACE INNOVATIONS
(2022)
Article
Chemistry, Multidisciplinary
Gil Otis, Molhm Nassir, Michael Zutta, Abed Saady, Sharon Ruthstein, Yitzhak Mastai
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Polymer Science
Meir Abuaf, Yitzhak Mastai
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Gil Otis, Michal Ejgenberg, Yitzhak Mastai
Summary: A novel solvent-free mechanochemical synthesis approach was presented for producing ZnO nanoparticles from ε-Zn(OH)2 crystals, with a focus on the milling process and characterization of the resulting nanoparticles. The transformation mechanism from ε-Zn(OH)2 to ZnO was investigated, providing insights into the reaction pathway. This study offers a simple, cost-effective, and environmentally friendly method to obtain ZnO nanoparticles, potentially opening up new synthetic pathways in the field.
Article
Nanoscience & Nanotechnology
Milena Perovic, Sapir Shekef Aloni, Wuyong Zhang, Yitzhak Mastai, Markus Antonietti, Martin Oschatz
Summary: This study discusses the importance of using porous materials for chiral separation and synthesis, with a focus on the application of carbon materials in these processes. A new method for preparing chiral carbon composite materials is proposed, which can be used for chiral recognition of molecules.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Kusha Sharma, Hari Krishna Sadhanala, Yitzhak Mastai, Ze'ev Porat, Aharon Gedanken
Summary: This study investigates the application of sonochemically prepared bovine serum albumin microspheres as adsorbents for industrial organic pollutant dyes, showing high efficiency in removing RhB, MB, and Rh6G from wastewater. The adsorption kinetics and equilibrium of the dyes were studied using various models, suggesting physical interaction between the microspheres and the dye pollutants. The results highlight the potential of bovine serum albumin microspheres as effective pollutant adsorbent materials.
Article
Chemistry, Multidisciplinary
Gil Otis, Matan Benyamin, Yitzhak Mastai, Zeev Zalevsky
Summary: In this study, a new method was introduced to measure local optical dichroism in opaque crystal powder suspensions using the photoacoustic effect. The method, based on laser speckle contrast technique and a simple statistical approach, allows for the measurement of optical dichroism in chiral crystal suspensions with completely random orientation.
CHEMICAL COMMUNICATIONS
(2021)
Article
Polymer Science
Meir Abuaf, Yitzhak Mastai
Summary: This article focuses on the use of electrospun nanofibers and conventional membranes formed by chiral functional nanoparticles for the separation of racemic mixtures. The chiral membranes based on leucine or phenylalanine amino acids and polysulfone show promising results in enantioselective separation.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Polymer Science
Liroy Lugasi, Gil Otis, Matan Oliel, Shlomo Margel, Yitzhak Mastai
Summary: Proteinoid nanoparticles composed of L-lysine and L-phenylalanine exhibit enantioselective adsorption of L-amino acids at different pH values, and the enantioselectivity is likely caused by positively charged ammonium moieties on the proteinoid surface, which originate from L-lysine.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Materials Science, Ceramics
Yu Kaganovskii, V Freilikher, M. Rosenbluh
Summary: The variation of grating amplitudes on the surface of amorphous chalcogenide films (ACF) As20Se80 has been studied under illumination, revealing that the amplitudes of small-period gratings exponentially decrease with time while those of large-period gratings exponentially increase. This study provides insights into the mechanism of photo-induced mass transfer, which involves the competition between capillary and electrostatic forces in the diffusion of As and Se atoms.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Physics, Multidisciplinary
Subhomoy Das, Alexander Butenko, Yitzhak Mastai, Moshe Deutsch, Eli Sloutskin
Summary: This study demonstrates temperature-controlled self-assembly of surface-adsorbed fluorescent molecules on water-suspended spherical oil droplets. Well-defined and highly ordered patterns are induced by self-positioned structural defects in a crystalline monolayer covering the droplets' surfaces. The findings provide insights into interfacial freezing effect on curved surfaces and enable precise positioning and self-assembly of functional ligands on droplets.
Article
Polymer Science
Sapir Shekef Aloni, Molhm Nassir, Yitzhak Mastai
Summary: A new type of chiral surface was developed based on a chiral ionic liquid, leading to a new direction in the field of enantioselective chemical reactions. The surface chemistry and pore structure of the chiral porous activated carbon surface were studied, revealing a preference for the D enantiomer of the amino acid proline. This study affirms the potential of this new chiral surface for various applications.
Article
Chemistry, Multidisciplinary
Meir Abuaf, Subhomoy Das, Yitzhak Mastai
Summary: Chiral polymeric particles (CPPs) have been extensively studied in recent years for their significance in pharmaceutical applications. In this study, nanosized CPPs were synthesized and applied as catalysts for direct asymmetric aldol reaction. The CPPs, prepared by miniemulsion or inverse miniemulsion methods using various chiral amino acid derivatives, were characterized by dynamic light scattering and scanning electron microscopy. The spherical nanoparticles with sizes between 250 and 400 nm and high chiral surface area served as catalysts in the aldol reaction at room temperature without additional solvent. Among them, l-tryptophan exhibited the highest enantiomeric excess (>86%) with similar catalytic performance for four times.
Article
Materials Science, Biomaterials
Ganit Indech, Lidor Geri, Chen Mordechai, Yarden Ben Moshe, Yitzhak Mastai, Orit Shefi, Amos Sharoni
Summary: Micro- and nano-particles are essential for various current and emerging technologies, particularly in biological studies and applications. Recent developments have led to multifunctional particles that can enhance their effectiveness and enable novel applications. However, conventional fabrication methods for particles are time-consuming and challenging to fine-tune for multifunctional applications. In this study, a simple and facile method for fabricating dome-shaped micron- and nano-sized particles was presented, which allows for the engineering of multifunctional particles with pre-defined properties for specific biological applications.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
G. A. Seilkhanova, A. B. Rakhym, A. Kan, A. K. Kenessova, Yitzhak Mastai
Summary: In this study, sorbents based on natural zeolite and chamotte clay were obtained to extract Na+ and K+ ions from saline water. Treatment with NaCl and HNO3 solutions improved the sorption properties of the materials, increasing the specific surface area and ion exchange capacity. The most effective sorbents were ChC-Na and Z-Na.
CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY
(2022)
Article
Chemistry, Physical
Maria Nihamkin, Avinoam Isaak, Amnon Albeck, Yitzhak Mastai, Yoni Toker
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Physical
Xinlei Chen, Shiyi Chen, Xuele Lin, Jingxuan Zhou, Xingjun Gao, Yaoqi Zhen, Xiaodan Ma, Shouwen Jin, Linfang Shi, Hui Liu, Daqi Wang
Summary: Nine mixed-ligand Cd2+ complexes with different geometric structures were synthesized and characterized. The complexes exhibit various coordination modes and form both intra- and intermolecular hydrogen bonds.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Rupali Mahajan, Abhishek Sharma, Bhagyashree Patra, Lijo Mani, Parul Grover, Sandeep Kumar, Santosh Kumar Guru, Gananadhamu Samanthula, Amol G. Dikundwar, Amit Asthana
Summary: This research article provides a comprehensive characterization and toxicological assessment of a photoisomeric impurity of the antianemic drug Roxadustat. The impurity has a distinct structure compared to the drug and its formation due to light exposure is a concern. Through various experiments, including single crystal XRD, physicochemical characterization, and in vitro cytotoxicity assays, the researchers confirmed the structure of the impurity, evaluated its conversion with Roxadustat, and assessed its toxicological activity. These findings contribute to the understanding of drug stability, safety, and formulation development.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Laila S. Alqarni, Azzah M. Alghamdi, Nuha Y. Elamin, A. Rajeh
Summary: The solution casting method was used to produce a new type of nanocomposites made of chitosan, gelatin, and co-doped ZnO nanoparticles. The addition of 3.5% co-doped ZnO nanoparticles improved the physicochemical characteristics and antimicrobial effects of the nanocomposites, indicating their significant potential in food packaging and energy storage.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ruchi Gaur
Summary: The structure and intermolecular interactions of a newly synthesized bis-chalcone THXA were studied using experimental and computational methods. The importance of non-covalent interactions such as pi center dot center dot center dot pi, C-H center dot center dot center dot S, and C-H center dot center dot center dot pi was revealed.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Andrii Bazylevich, Leonid Patsenker, Sarit Aviel-Ronen, Gary Gellerman
Summary: Drug combination therapy is commonly used for treating various skin disorders, but its effectiveness is often limited. In this study, researchers synthesized conjugates of anti-pigmenting drugs and hyaluronic acid (HA) to improve treatment efficacy. These HA-drug conjugates exhibited measurable drug release profiles and demonstrated superior depigmentation effects compared to control groups in a swine model.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Xiaodan Ma, Xinlei Chen, Yaoqi Zhen, Xunjie Zheng, Chengzhe Shi, Shouwen Jin, Bin Liu, Bin Chen, Daqi Wang
Summary: Cocrystallization experiments between minoxidil and aryl acids coformers resulted in the successful formation of multi-component samples. The nature of these samples was determined using various techniques and their structural and supramolecular aspects were investigated. The outcomes revealed the importance of nonbonding contacts and different types of interactions in stabilizing and expanding the crystal structures.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Najla A. Alshaye, Magdy A. Ibrahim, Al-Shimaa Badran
Summary: The chemical behavior of 3-substituted-6,8-dimethylchromones towards phenylhydrazine was examined. Different reaction conditions produced various products, and the molecular geometries and reactivity descriptors of the compounds were also investigated. The results suggest that these compounds are suitable for nonlinear optical applications.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Hayette Alliouche, Houria Bouria, Rafik Bensegueni, Mounia Guergouri, Abdelmalek Bouraiou, Ali Belfaitah
Summary: In this paper, a combined experimental and theoretical study was conducted to synthesize and characterize new 2-quinolone-piperidine and -morpholine hybrids. The results from experiments were validated using computational calculations, and the affinity between these compounds and Acetylcholinesterase/Butyrylcholinesterase was estimated through molecular docking.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Wei-Min Chen, Juan-Juan Shao, Yi Zhang, Zhen-Dong Xue, Peng-Lai Liu, Jian-Ling Ni, Li-Zhuang Chen, Qiang Gao, Fang-Ming Wang
Summary: This study synthesized and characterized a novel Mn-based LMOF, and achieved good results in detecting heavy metal Al3+ in water, showing good stability, high selectivity and sensitivity. This provides new insights into the potential applications of Mn-based MOFs in chemical sensing.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Jun-Xia Li, Yi-Jing Lu, Ke-Ying Quan, Li-Bing Wu, Xun Feng, Wei-Zhou Wang
Summary: This study synthesized two cobalt(II) complexes and analyzed their crystal structures using single-crystal X-ray diffraction. The results showed that the crystal structures of these complexes were different, and they exhibited different crystal packing and magnetic properties.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Yang Li, Yan Zhang, Hong Xu, Min Li, Zhen Li, Zi-yu Song, Ji-shi Chen, Yan-Jun Liu, Yong Sun, Zhao Yang
Summary: This study reports the synthesis and solid-state characterization of a new pharmaceutical cocrystal, PRO-BPE, which can enhance the solubility of the highly water-insoluble prodrug probenecid. The PRO-BPE cocrystals were found to have superior water solubility compared to pure PRO. This research provides valuable insights into improving the solubility of poorly soluble drugs.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Lucas G. B. Felicio, Bianca B. M. Vieira, Ivana S. Lula, Renata Diniz, Frank Alexis, Flavio B. Miguz, Frederico B. De Sousa
Summary: A novel spiropyran derivative was synthesized for heavy metals sensing in water. The results demonstrated that the new derivative can serve as a rapid, sensitive, and simple tool for detecting Hg2+ ions in water with high selectivity.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Junqing Meng, Jie Wang, Lijuan Wang, Chunhui Lyu, Haiyan Chen, Yingpei Lyu, Baisheng Nie
Summary: Material modification with low surface energy can achieve lower surface free energy on micro-and nano-rough structures, which is crucial for developing superhydrophobic surfaces. In this study, attapulgite (APT) was modified with alkylamine, alkylammonium salt, and stearic acid, and the interaction between low surface materials and attapulgite was explained. The results showed that the hydrophobicity of APT was significantly modified by the modifiers, and the surface free energy of the composites first decreased and then increased with increasing molecular number of low surface energy monomers.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Karan Goswami, Dipak Das, Parthasarathi Bera, Sounak Roy, Md. Motin Seikh, Prasanta Kumar Sinha, Arup Gayen
Summary: This work presents the development of a simple and highly active heterogeneous Pd catalyst for Suzuki-Miyaura carbon-carbon cross-coupling reaction. The NiPdFe-1 catalyst shows the best activity and stability among the prepared catalysts. It efficiently promotes the coupling reaction between aryl bromide and phenyl boronic acid under mild reaction conditions with high isolated yields.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ekta Pardhi, Devendra Singh Tomar, Rahul Khemchandani, Gananadhamu Samanthula, Pankaj Kumar Singh, Neelesh Kumar Mehra
Summary: The main aim of this study was to prepare a drug-drug coamorphous system to improve the physiochemical properties, solubility and stability of Apremilast and Indomethacin. Various solid-state characterization techniques were used to characterize the prepared system. Molecular level interactions were studied using molecular modeling and ATR-FTIR and 1H NMR. Solubility and dissolution studies showed the benefits of the coamorphous system. The system was found to be stable for a period of five months. Permeation study also demonstrated improved flux for both drugs compared to their crystalline forms. The coamorphous system showed anti-psoriatic and anti-melanogenic activity based on molecular docking results. Overall, the developed CAM-based supersaturated system exhibited improved physicochemical properties and physical stability.
JOURNAL OF MOLECULAR STRUCTURE
(2024)