Article
Chemistry, Applied
Qing Zhang, Yuanyuan Zhang, Haibo Chen, Lei Zhang, Peng Li, Huining Xiao, Weibing Wu
Summary: This article describes the controllable and uniform loading of gold nanospheres on cellulose nanocrystals by electrostatic adsorption self-assembly. The particle spacing of gold nanospheres on cellulose nanocrystal surface was successfully regulated by adjusting size, Zeta potential, and loading ratio. This method provides an easy and efficient approach to constructing one-dimensional hot spots, which is crucial for enhancing the performance of surface enhanced Raman scattering spectroscopy. The resulting nanohybrid shows improved reproducibility and sensitivity for SERS detection, making it potentially valuable for sensing applications.
CARBOHYDRATE POLYMERS
(2022)
Article
Materials Science, Multidisciplinary
Thi Huyen Trang Nguyen, Thi Mai Anh Nguyen, Cong Doanh Sai, Thi Hai Yen Le, Thi Ngoc Anh Tran, Thanh Cong Bach, Van Vu Le, Nguyen Hai Pham, An Bang Ngac, Viet Tuyen Nguyen, Thi Ha Tran
Summary: The research combined sputtering and post annealing methods to prepare gold nanoparticles with uniform distribution on cover glass substrates, and studied the effect of gold thickness on the formation of nanoparticles. The study also analyzed the impact of size, inter-distance, and morphology of gold NPs on plasmon properties using SEM and absorption spectroscopy. Different morphologies' enhancement capabilities were verified using FDTD technique, demonstrating the efficient performance of the prepared gold nanoparticles arrays as SERS substrates.
Article
Nanoscience & Nanotechnology
Jinxin Chi, Chencong Xia, Zhiyong Guo, Guihua Huang, Xucong Lin
Summary: In this study, a facile and cost-effective surface-enhanced Raman scattering (SERS) sensor with high sensitivity for the on-site rapid detection of trace molecules was developed. The sensor was prepared using a capillary-based three-dimensional network porous silica material decorated with gold nanoparticles. The material exhibited a high density of SERS enhancement sites and a hot-spot, leading to a high detection sensitivity. The sensor was successfully applied to the analysis of phosmet residues on orange peel and vegetables.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Si-Zhe Sheng, Shi-Qiao Zheng, Xue-Fei Feng, Ling-Ran Zhou, Zhen-Chao Tao, Jian-Wei Liu
Summary: This study provides a new strategy for assembling ordered structures of gold nanoparticles using highly ordered nanowire templates to explore the ordering effect on SERS performance. The highly ordered gold nanoparticle arrays show improved detection limit and enhancement factor compared to disordered gold particles.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Biochemical Research Methods
Stefano Fornasaro, Alessandro Esposito, Fiorella Florian, Alberto Pallavicini, Luigina De Leo, Tarcisio Not, Cristina Lagatolla, Marica Mezzarobba, Alessia Di Silvestre, Valter Sergo, Alois Bonifacio
Summary: Significant differences were found in the faecal samples of celiac patients and those on a gluten-free diet using SERS spectroscopy and 16S rRNA sequencing analysis. Although there were no significant differences in bacterial composition, the relative intensity of xanthine and hypoxanthine in the SERS spectra of patients on a gluten-free diet was significantly increased.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Jing Guan, Shuo Wu, Linfang Li, Xiuyun Wang, Wei Ji, Yukihiro Ozaki
Summary: This research investigates the effect of charge-transfer at plasmonic nanostructure interfaces on hot-electron generation, revealing it to be a primary determinant of hot-electron-induced oxygen activation on large Au NP surfaces.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Wenbing Li, Xin Tong, Zhuo Yang, Jiali Zhang, Bo Liu, Chao Ping Chen
Summary: Surface-enhanced Raman scattering (SERS) has attracted significant attention as a high sensitivity analytical method for molecule detection. This study compared the performance of AuNP/SiO2/Au/Sapphire substrate and AuNP/Si substrate in detecting molecules in Raman microscopy, with the former demonstrating improved sensitivity. Simulation using the finite-difference time-domain (FDTD) method provided insights into the enhanced sensitivity of the AuNP/SiO2/Au/Sapphire substrate, suggesting optimized parameters for further research.
Article
Chemistry, Multidisciplinary
Koichiro Saito, Keegan McGehee, Yasuo Norikane
Summary: The study successfully synthesized beta-CD-capped AuNPs with diameters ranging from 24 to 85 nm using a seed-mediated growth method. Monolayers of beta-CD-capped AuNPs were fabricated via liquid-liquid interfacial self-assembly for surface-enhanced Raman scattering (SERS) applications, which showed significantly improved intensity. Additionally, the higher sensitivity of beta-CDs in detecting pyrene compared to alpha-CDs was attributed to differences in molecular recognition ability.
NANOSCALE ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
Marius Schumacher, Dorleta Jimenez de Aberasturi, Jan-Philip Merkl, Leonardo Scarabelli, Elisa Lenzi, Malou Henriksen-Lacey, Luis M. Liz-Marzan, Horst Weller
Summary: This study introduces a versatile strategy for the preparation of colloidally stable and biocompatible gold nanoparticle clusters. By tuning the ligand ratio on the surface of each nanoparticle, aggregation can be controlled. The resulting clusters exhibit enhanced surface plasmon resonances and electromagnetic hotspots for surface-enhanced Raman scattering (SERS), making them promising bioimaging agents. These clusters also demonstrate high cellular uptake and low cytotoxicity, allowing for potential applications in cellular imaging.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Analytical
Dan Liu, Haibin Tang, Yupeng Yuan, Chuhong Zhu
Summary: Surface-enhanced Raman scattering (SERS) spectroscopy provides sensitive rapid detection of molecules. A simple and effective method using seed-assisted electrodeposition is developed for fabricating a 3D SERS substrate composed of multilayer Au nanoparticles. The resulting multilayer Au nanoparticles-assembled film shows high SERS sensitivity, good spectral uniformity, and reproducibility, with a low detection limit for rhodamine 6G. Moreover, it is also effective in detecting organic pollutants such as crystal violet and methylene blue.
MICROCHEMICAL JOURNAL
(2023)
Article
Optics
Yu Xu, Huiqing Zhong, Meng Shi, Zhidong Zheng, Shaojing Liu, Qian Shou, Heng Li, Guanjie Yang, Zongbao Li, Xiaobo Xing
Summary: The rapid photothermal self-assembly of Au nanoparticles in water provides a highly sensitive SERS substrate for detecting chemical pollutants. The smart reversible assembly allows for tuning SERS activity, showing promising applications in SERS-based sensors and environmental pollutant detection.
Article
Chemistry, Multidisciplinary
Kirill Khabarov, Emiliia Filalova, Messan Nouraldeen, Ekaterina Kameneva, Andrey Musaev, Sergei Tikhonov, Victor Ivanov
Summary: In this study, the influence of agglomeration degree of nanoparticles on the signal enhancement of surface-enhanced Raman spectroscopy (SERS) was investigated. It was found that structures formed mainly from non-agglomerated nanoparticles can enhance the SERS signal better. Aerosol nanoparticles modified by pulsed laser radiation show better results compared to thermally modified nanoparticles.
Article
Nanoscience & Nanotechnology
Zi-Chun Chia, Li-Xing Yang, Ting-Yu Cheng, Ya-Jyun Chen, Horng-Long Cheng, Fei-Ting Hsu, Ying-Jan Wang, Yu-Ying Chen, Tzu-Chi Huang, Yi-Syun Fang, Chih-Chia Huang
Summary: The study designed and synthesized polyaniline-containing galactosylated gold nanoparticles, which produced electromagnetic enhancement in surface-enhanced Raman scattering and could detect low concentrations of bacteria. In addition, high accumulation of the nanoparticles promoted the immune response of tumor-associated macrophages.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Hiroki Makanai, Tatsuya Nishihara, Kazuhito Tanabe
Summary: In this study, a purification-free method based on surface-enhanced Raman scattering (SERS) using functionalized gold nanoparticles was developed for the detection of specific nucleic acids. The robust Raman signal of an acetylene-tagged Hoechst molecule (AH) was identified through SERS, and the target nucleic acids were detected through strand displacement and dissociation processes.
ACS APPLIED NANO MATERIALS
(2022)
Article
Agriculture, Dairy & Animal Science
Siyuan Gao, Jinhui Wu, Hong Wang, Shengying Hu, Li Meng
Summary: A rapid, sensitive, and quantitative detection method for Cronobacter sakazakii in powdered infant formula was developed using a SERS immunochromatographic test strip, with a high linear range and detection sensitivity.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)