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.
Article
Chemistry, Analytical
Monica Ricci, Beatrice Fortuni, Raffaele Vitale, Qiang Zhang, Yasuhiko Fujita, Shuichi Toyouchi, Gang Lu, Susana Rocha, Tomoko Inose, Hiroshi Uji-I
Summary: The study introduced the use of silver nanowires as endoscopic probes for detecting intracellular Raman signals and proposed an advanced strategy to significantly enhance their performance. By uniformly forming gold structures on the smooth AgNW surface, high surface-enhanced Raman scattering efficiency was achieved, demonstrating applicability for molecular sensing in cells.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chiara Amicucci, Cristiano D'Andrea, Marella de Angelis, Martina Banchelli, Roberto Pini, Paolo Matteini
Summary: This paper introduces a graphene paper-supported plasmonic substrate for biodetection, which provides stable SERS signals at sub-millimolar concentration and a detection limit down to the nanogram level in the case of hemoglobin. The presence of a graphene underlayer ensures an even surface distribution of SERS hotspots and improved stability of the SERS signal.
Article
Chemistry, Physical
Puran Pandey, Siela Vongphachanh, Jongwon Yoon, Bokyoung Kim, Chel-Jong Choi, Jung Inn Sohn, Woong-Ki Hong
Summary: This study demonstrated the use of AgNWNF-coated stretchable PDMS substrates as SERS sensors with strong effects. The adhesion strength of AgNWNEs on UVO-treated PDMS substrates was significantly stronger than that of AgNWNFs on untreated PDMS.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Ya-Qiong Su, Jia Liu, Rong Huang, Hong-Tao Yang, Ming-Xue Li, Ran Pang, Meng Zhang, Meng-Han Yang, Hai-Feng Su, Rajkumar Devasenathipathy, Yuan-Fei Wu, Jian-Zhang Zhou, De-Yin Wu, Su-Yuan Xie, Bing-Wei Mao, Zhong-Qun Tian
Summary: Surface-enhanced Raman spectroscopy (SERS) is widely usedfor efficient identification and characterization of DNA structures. The SERS signals of the adenine group show high detection sensitivity in various biomolecular systems. However, there is still no consensus on the interpretation of certain types of SERS signals of adenine and its derivatives on silver colloids and electrodes. This study introduces a new photochemical azo coupling reaction for adenyl residues, which selectively oxidizes adenine to azopurine in the presence of silver ions, silver colloids, and nanostructured electrodes under visible light irradiation. The resulting azopurine is found to be responsible for the SERS signals. This photoelectrochemical oxidative coupling reaction is facilitated by plasmon-mediated hot holes and regulated by positive potentials and solution pH, providing new insights into the study of azo coupling in the photoelectrochemistry of adenine-containing biomolecules on plasmonic metal nanostructure electrodes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Tomoko Inose, Shuichi Toyouchi, Shinnosuke Hara, Shoji Sugioka, Peter Walke, Rikuto Oyabu, Beatrice Fortuni, Wannes Peeters, Yuki Usami, Kenji Hirai, Steven De Feyter, Hiroshi Uji-i, Yasuhiko Fujita, Hirofumi Tanaka
Summary: Graphene nanoribbons (GNRs) have attracted tremendous attention for their potential in next-generation nanoelectronic devices. The authors recently discovered that unzipping from double-walled carbon nanotubes (DWNTs) can produce crystalline single-layered GNRs (sGNRs) with high yield. By using silver nanowire-based tip-enhanced Raman spectroscopy (TERS), the authors analyzed the single GNRs and found heterogeneity in defect density and edge structure, which provides deeper insights into the structure and reaction mechanism of unzipped GNRs.
Article
Chemistry, Physical
Aleksandra Michalowska, Kacper Jedrzejewski, Andrzej Kudelski
Summary: Abnormal metabolism or imbalance of dopamine can lead to neurological disorders. A study found that certain salts strongly influence the spectral patterns and intensity of the SERS spectra of dopamine adsorbed on a silver substrate. Additionally, the addition of electrolytes significantly increases the intensity of the SERS spectrum, allowing for a lower limit of detection of dopamine. These findings may aid in the development of dopamine SERS sensors.
Review
Chemistry, Analytical
Shashank K. Gahlaut, Anisha Pathak, Banshi D. Gupta
Summary: This review highlights the recent developments in silver nanostructured substrates for plasmonic sensing, with a focus on surface plasmon resonance (SPR) and surface-enhanced Raman spectroscopy (SERS). The synthesis methods of silver nanostructured substrates and their applications in various sensing regimes are discussed. Recent literature on silver nanostructures prepared through physical vapor deposition and chemical synthesis routes is critically reviewed for different types of substrates.
Article
Chemistry, Applied
Youngho Jeon, Dabum Kim, Goomin Kwon, Kangyun Lee, Chang-Sik Oh, Ung-Jin Kim, Jungmok You
Summary: This study presents a method for constructing surface-enhanced Raman scattering (SERS)-active array substrates using regenerated cellulose and plasmonic nanoparticles for rapid detection of nanoplastics. The silver nanowires exhibited better SERS activity for polystyrene nanoplastic detection compared to gold nanorods. This low-cost, flexible, and highly sensitive approach could provide an efficient and rapid method for nanoplastic detection.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Qing Yang, Shaoying Zhang, Shouqing Ni, Yongchao Lai, Jinhua Zhan
Summary: This study proposes a filtration-based SERS method for sensitive and selective analysis of consumer goods containing silver nanoparticles (AgNPs). By adding Raman probe molecules and using an iodide-modified silver nanowire membrane as a filter, AgNPs can be separated and enriched, and quantification can be achieved through a linear relationship between signal intensity and concentration. The method can detect and identify different types of AgNPs, and has been successfully applied to the detection of AgNPs in antibacterial products.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Physical
Yasemin Celik, Ayse Kurt
Summary: Hybrid SERS substrates combining noble metal nanoparticles and graphene-based materials offer a stable and cost-effective platform for SERS analysis, which shows great potential to promote the application of SERS for routine analyses.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Ahmed T. Alanazi, Sawsan Almohammed, James H. Rice
Summary: This study explores the potential of using cadmium sulfide combined with plasmonic nanostructures for photo-induced catalysis. The researchers found that when a silver nanowire and cadmium sulfide composite are irradiated with super-bandgap light, dimercaptoazobenzene is formed from p-aminothiophenol. These results suggest that cadmium sulfide can be a viable alternative to semiconductors like titanium dioxide for plasmonic photocatalysis applications.
Article
Chemistry, Physical
Haibo Chen, Xingyue Liu, Shanshan Zhai, Qing Zhang, Peng Li, Weibing Wu
Summary: This study developed a multifunctional one-dimensional nanoprobe based on cellulose nanocrystals (CNCs) for sensing and detection using surface-enhanced Raman scattering spectroscopy (SERS) technology. The nanoprobe exhibited excellent dispersion stability, signal stability, reproducibility, and dispersibility even in high concentration salt solutions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
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
Chemistry, Physical
Chuhong Zhu, Dan Liu, Manqing Yan, Gengsheng Xu, Haichao Zhai, Juan Luo, Guowei Wang, Daochuan Jiang, Yupeng Yuan
Summary: The facile approach of constructing ordered arrays of silver nanoparticles-assembled spherical micro-cavities using polystyrene sphere template-assisted electrodeposition and post-growth significantly improves SERS sensitivity with low relative standard deviation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Biotechnology & Applied Microbiology
Jingyang Zhang, Mengmeng Chen, Yuan Peng, Shuang Li, Dianpeng Han, Shuyue Ren, Kang Qin, Sen Li, Tie Han, Yu Wang, Zhixian Gao
Summary: Fatigue has significant adverse effects on human health, necessitating timely, portable, and accurate fatigue diagnosis. Wearable biosensors, which collect biomarkers from biofluids and transmit detection signals wirelessly in real-time, have attracted attention. However, detection performance limits the wide applicability of wearable fatigue diagnosis. This article discusses the application of wearable biosensors in fatigue diagnosis, exploring the potential of different biofluids and addressing current limitations and advancements in biochemical reaction and data communication modules. Challenges and opportunities for wearable fatigue diagnosis in the future are also discussed.
BIOENGINEERING & TRANSLATIONAL MEDICINE
(2023)
Article
Multidisciplinary Sciences
Xiaoyu Hu, Jiatian Li, Sitong Li, Guanghao Zhang, Run Wang, Zhongsheng Liu, Mengmeng Chen, Wenqian He, Kaiqing Yu, Wenzhong Zhai, Weiqiang Zhao, Abdul Qadeer Khan, Shaoli Fang, Ray H. Baughman, Xiang Zhou, Zunfeng Liu
Summary: This paper reports an artificial muscle controlled by thermodynamic-twist coupling, which can be used in different actuation modes, such as elongation, contraction, and torsional rotation. It provides a new design strategy for intelligent materials.
NATIONAL SCIENCE REVIEW
(2023)
Article
Biochemistry & Molecular Biology
Hao Xie, Si Liu, Yiqiu Fu, Qian Cheng, Ping Wang, Cai-Li Bi, Rui Wang, Meng-Meng Chen, Ming Fang
Summary: In this study, the nuclear access ability of the DNlg3 C-terminal fragment was demonstrated, and its possible function in transcriptional regulation of innate immune response genes was identified. This finding provides new links between synaptic adhesion molecule NLGNs and immune activation, enhancing our understanding of the relationship between NLGNs and Autism.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Guangwei Lu, Shuang Liu, Dongyu Lv, Mengmeng Chen, Zuxing Zhang
Summary: We present a large mode area photonic crystal fiber with a flat-top mode field. It consists of a multi-layer square structure with air holes and a doped layer. By designing the doped layer, it achieves a flat and top-hat-like mode intensity profile. The fiber's modal characteristics, including effective mode area, dispersion, bending loss, confinement loss, and field profile, are investigated. The proposed fiber offers potential applications in laser drilling, laser cleaning, imaging, spectroscopy, and more.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Liang Wang, Qingqing Miao, Dandan Wang, Mengmeng Chen, Huan Bi, Jiaqi Liu, Ajay Kumar Baranwal, Gaurav Kapil, Yoshitaka Sanehira, Takeshi Kitamura, Tingli Ma, Zheng Zhang, Qing Shen, Shuzi Hayase
Summary: The photoelectric properties of nontoxic Sn-based perovskite make it a promising alternative to toxic Pb-based perovskite. It has superior photovoltaic performance compared to other Pb-free counterparts, but the facile oxidation of Sn2+ to Sn4+ hinders its stability and performance. Inserting a thin layer of Sn metal at the surfaces of the perovskite layer significantly decreases the levels of Sn4+ and trap densities, leading to improved power conversion efficiency of 14.31% and operational stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Mengmeng Chen, Yongjia He, Linnue Lue, Xulong Zhang
Summary: By using a small amount of water reducer to reduce the water-cement ratio, the addition of 30% limestone powder significantly improves the mechanical properties of the sample without affecting its fluidity and increasing the cost. Furthermore, the dual addition of metakaolin and limestone powder effectively enhances the strengths. Various analytical techniques were used to investigate the reasons behind this phenomenon. The reactive aluminum-rich phases in metakaolin react with limestone powder during hydration, leading to the formation of calcium carboaluminate, which reduces porosity and increases the density of the hardened paste. The addition of ground granulated blast furnace slag also improves the strength, albeit not as effectively as metakaolin due to its lower content of reactive aluminate phases.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2023)
Article
Geosciences, Multidisciplinary
Mengmeng Chen, Fan Xiao
Summary: Mineral prospectivity mapping (MPM) is a crucial task in mineral exploration. In recent years, the random forest (RF) has been widely used in MPM due to its high performance and robustness. However, the RF method does not fully consider variable correlation, leading to the proposal of a hybrid model called projection pursuit RF (PPRF). This study validated and compared the PPRF and RF methods for MPM of porphyry Cu-Mo deposits in northwestern China, and found that PPRF outperforms RF in overall accuracy and is less sensitive to unbalanced data.
MATHEMATICAL GEOSCIENCES
(2023)
Article
Plant Sciences
Mengmeng Chen, Yixuan Deng, Shirong Zhang, Rulin Li, Lu Liu, Xiaodong Ding
Summary: Laccase plays a critical role in the formation of iron-organic matter complexes in coastal saline-alkaline soil, contributing to the stabilization and storage of organic matter. It catalyzes the polymerization of organic matter, promoting the formation of Fe-OM complexes, and improving the sequestration of organic matter in such soil.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Engineering, Biomedical
Mengjie Li, Mengmeng Chen, Facui Yang, Rongrong Qin, Qingmin Yang, Hao Ren, Han Liu, Peng Yang
Summary: Biocompatible protein-polysaccharide complex presents multi-in-one removal efficacy for small and medium toxins, including bilirubin, urea, phosphor, heavy metals, and antibiotics, serving as a promising hemoperfusion adsorbent. The adsorbent exhibits high adsorption capacities for different substances due to various functional groups exposed on the surface. This fully bio-derived adsorbent has great application prospects in the treatment of blood-related diseases.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Environmental Sciences
Mengmeng Chen, Lipeng Wu, Xiaodong Ding, Lu Liu, Yuyi Li, Chao Fei, Shirong Zhang
Summary: Biochar modifications can significantly improve soil organic carbon content and enhance soil structure stability in saline-alkaline soils. The use of ferric chloride modified biochar can increase the content of stable humin and iron oxides in the soil, which leads to limited biodegradation of organic carbon and higher stability of soil organic carbon.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Engineering, Electrical & Electronic
Guangwei Lu, Shuang Liu, Mengmeng Chen, Zuxing Zhang
Summary: A novel all-solid antiresonant fiber is presented for the generation of flat-top beams. The fiber utilizes a square antiresonance structure to homogenize the beam profile and exhibits low confinement loss and large mode area. It effectively transmits flat-top beams with low loss in the wavelength range from 1200 nm to 2200 nm.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Analytical
Mengmeng Chen, Haotian Ding, Mingming Liu, Zhigao Zhu, Dongdong Rui, Ye Chen, Fei Xu
Summary: Field tests were conducted on municipal roads and railways using a distributed acoustic sensor (DAS) to develop implementation research on distributed optical fiber sensing technology. The collected data were analyzed separately in short-term and long-term analyses, providing important information for developing data processing methods of DASs and promoting their implementation.
Article
Engineering, Environmental
Zhaohui Zhang, Tong Zhang, Liang Wang, Mengmeng Chen, Bin Zhao, Junjing Li, Cong Ma, Xiuru Chu, Pengda Zhang
Summary: Free transparent exopolymer particles (TEP) play a significant role in irreversible membrane fouling when treating algae-laden water. A study found that the integrated process of magnetic anion exchange resin (MIEX)/ultrafiltration (UF) effectively reduces the irreversible fouling caused by free TEP. The experimental results suggest that the MIEX dynamic layer contributes the most to alleviating irreversible membrane fouling during the MIEX/UF process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Yuan Zhang, Wanpeng Yu, Mengmeng Chen, Bingqiang Zhang, Lei Zhang, Peifeng Li
Summary: Nanozymes, a class of nanomaterials with catalytic properties similar to natural enzymes, have been widely used in various fields, such as biomedicine, due to their high catalytic activity and stability. They can trigger changes in reactive oxygen species (ROS) levels in cells and activate inflammasomes, leading to programmed cell death (PCD) of tumor cells. Nanozymes can also consume glucose, starving cancer cells and accelerating tumor cell death. Moreover, nanozymes can be used with different therapeutic methods to achieve highly efficient antitumor effects. This review focuses on the mechanisms of three types of tumor cell death, pyroptosis, ferroptosis, and autophagy, and the potential application of nanozymes in regulating these processes.
Article
Chemistry, Multidisciplinary
Hua Li, Qing Wang, Yusuke Oteki, Chao Ding, Dong Liu, Yao Guo, Yusheng Li, Yuyao Wei, Dandan Wang, Yongge Yang, Taizo Masuda, Mengmeng Chen, Zheng Zhang, Tomah Sogabe, Shuzi Hayase, Yoshitaka Okada, Satoshi Iikubo, Qing Shen
Summary: This study investigates the effect of A-site cation cross-exchange on the hot-carrier relaxation dynamics in perovskite quantum dots (PQDs), which is crucial for the development of innovative photovoltaic technologies. The results demonstrate that the lifetime of the initial fast cooling stage of organic cation-containing PQDs is shorter than that of CsPbI3 QDs, while the lifetime of the slow cooling stage of alloyed PQDs is longer under illumination. The introduction of co-vibrational optical phonon modes in the alloyed PQDs enhances the hot-phonon bottleneck effect.
ADVANCED MATERIALS
(2023)