Article
Physics, Multidisciplinary
S. D. Eder, S. K. Hellner, S. Forti, J. M. Nordbotten, J. R. Manson, C. Coletti, B. Holst
Summary: Experimental measurements on AB-stacked bilayer graphene show that the bending rigidity increases with temperature, contrary to some theoretical predictions. The data is fitted to a linear dependence to obtain a specific equation for kappa(T), which provides insight when compared to existing predictions and room temperature measurements.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Visnja Babacic, David Saleta Reig, Sebin Varghese, Thomas Vasileiadis, Emerson Coy, Klaas-Jan Tielrooij, Bartlomiej Graczykowski
Summary: This study utilized micro-Brillouin light scattering to investigate the anisotropic elastic properties of 2H-MoSe2 material, revealing a significant and systematic elastic softening of the material with decreasing numbers of layers. The approach also allows for a comprehensive mechanical examination of few-layer membranes, providing new insights for research on other vdW materials.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hao Yin, Xin Gao, Jianjun Liu, Pengwan Chen
Summary: Graphene and N-doped graphene nanosheets were synthesized by shock-induced reduction of CO2 using a cylindrical shock-loading apparatus. The mixture of solid CO2 and Mg powder was impacted by a shock-driven cylindrical flyer tube, resulting in a chemical reaction between CO2 and Mg at high pressure and temperature. The recovered black powders were characterized, confirming the presence of few-layer graphene. This study provides an efficient and scalable method for synthesizing few-layer graphene and N-doped few-layer graphene through shock synthesis.
Article
Chemistry, Multidisciplinary
Chuan Tang, Yilong Jiang, Lei Chen, Junhui Sun, Yangqin Liu, Pengfei Shi, Jose Yesid Aguilar-Hurtado, Andreas Rosenkranz, Linmao Qian
Summary: The mechanical performance and surface friction of graphene oxide (GO) depend on the number of layers. The nanowear resistance of GO nanosheets on a silicon oxide substrate shows a non-monotonic layer-dependence. As the thickness of GO increases, the nanowear resistance first decreases and then increases, with a critical number of layers at 4. This change corresponds to a shift in the wear mode from overall removal to progressive layer-by-layer removal.
Article
Nanoscience & Nanotechnology
Chuan-Xin Cui, Jin-Wu Jiang
Summary: In this study, molecular dynamics simulations were used to investigate the effect of the layer number on gas permeation through a nanopore within few-layer graphene. The results showed that the permeation constant decreases with increasing layer number. By considering the nanoscale effect from the surface morphology of the nanopore, the macroscopic model can accurately describe the layer number dependence for the gas permeation constant.
Article
Chemistry, Multidisciplinary
Qinzhen Li, Sha Yang, Jinsong Chai, Hui Zhang, Manzhou Zhu
Summary: This study investigates the factors influencing the size modulation of nanoclusters by diphosphines and demonstrates the role of diphosphines in controlling the size, configuration, and optical properties of nanoclusters. By controlling the length of the diphosphines and introducing a rigid group, the size and structure of nanoclusters can be finely tuned, enabling precise control of the physicochemical properties of nanoclusters for practical applications.
Article
Engineering, Chemical
Guojuan Qu, Tao Jiang, Tao Liu, Xiang Ma
Summary: Au nanoclusters (Au NCs) were synthesized and matched with Au@GSH NCs to create a multicolor tunable luminescent system. The system achieved standard white-light emission with high CRI and could monitor temperature changes visually.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Kamel Shoueir, Anurag Mohanty, Izabela Janowska
Summary: In this study, a green, simple, scalable, fast, and efficient synthesis of few-layer graphene (FLG) and its composites with Au and Ag nanoparticles using waste materials was presented. The presence of molasses during FLG synthesis and nanoparticle formation showed a synergistic effect, leading to reduced nanoparticle size and improved stability. The composites also exhibited high photocatalytic efficiency for bisphenol degradation and high gravimetric capacitance for potential electrode applications. This approach holds promise for the synthesis of other layered materials and non-noble supported metallic systems.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Kun Lu, Qingyuan Hu, Li Zhai, Zhiyu Zhu, Yunsong Xu, Zhaohui Ding, Hang Zeng, Shipeng Dong, Shixiang Gao, Liang Mao
Summary: This study reveals the biological fate of graphene in algae and its potential biological effects, which is important for assessing the environmental risks of graphene.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Pingping Zhuang, Jing Liu, Junjie Huang, Chao Dou, Weiwei Cai, Weiyi Lin
Summary: This study investigates the charge distribution between layers in van der Waals stacked crystals using carbon isotope-labeled few-layer graphene. The electrical transfer characteristics of graphene field-effect transistors are used to calibrate the correspondence between Fermi level and G-phonon frequency. The results reveal that the charge concentration in both top and bottom layers of few-layer graphene is close and does not follow the exponential decay law. Additionally, each additional layer of graphene reduces the charge exchange at the graphene/dopant interface. These findings have important implications for electronic applications based on two-dimensional materials and provide a framework for further exploring the properties of other two-dimensional systems.
Article
Chemistry, Multidisciplinary
Kenan Elibol, Clemens Mangler, David D. O'Regan, Kimmo Mustonen, Dominik Eder, Jannik C. Meyer, Jani Kotakoski, Richard G. Hobbs, Toma Susi, Bernhard C. Bayer
Summary: This research demonstrates the self-assembly of single indium atoms and few-atom indium clusters in suspended monolayer graphene membranes, anchored to substitutional silicon impurity atoms. Scanning transmission electron microscopy (STEM) revealed that the symmetry of the indium structures is dependent on the coordination of the silicon anchors. Furthermore, electron beam irradiation in STEM enables the observation of formation, restructuring, and translation of the silicon-anchored indium structures.
Article
Chemistry, Multidisciplinary
Junliang Liu, Yusuke Sato, Viveka K. Kulkarni, Angus I. Sullivan, Wenyu Zhang, Cathleen M. Crudden, Jason E. Hein
Summary: Atomically precise gold nanoclusters (AuNCs) are interesting nanomaterials with potential applications in catalysis, bioimaging, and optoelectronics. However, the synthetic methods for AuNCs lack in situ and real-time reaction monitoring, limiting the understanding of their formation mechanisms and hindering optimization. In this study, the utility of HPLC-MS as a monitoring methodology in the synthesis of two NHC-protected gold nanoclusters was demonstrated, providing new insights into the reaction dynamics and rapid optimization.
Review
Chemistry, Multidisciplinary
Xiaoshuang Ma, Yun Tang, Guanyu Ma, Lubing Qin, Zhenghua Tang
Summary: Homoleptic alkynyl-protected Au nanoclusters have attracted significant research interest due to their unique properties and applications in catalysis and optics. This review discusses various synthetic strategies and formation mechanisms, providing insight into the future development of this rapidly evolving field.
Article
Chemistry, Physical
Jing Chen, Shuai Chen, Bingjing Chen, Yan Cao, Jiafu Chen, Yalin Cheng, Zhimin Chen, Jianwei Fu
Summary: A novel catalysis strategy was reported to construct nanometer-thick microporous carbon/few-layer graphene heterostructure, which showed high special capacitance and excellent rate performance. The mechanism behind these phenomena was studied.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
A. Mohapatra, S. Das, K. Majumdar, M. S. Ramachandra Rao, Manu Jaiswal
Summary: Wrinkles significantly influence the thermal transport in vertical assemblies of few-layer graphene crystallites. While the presence of wrinkles enhances the thermal conductivity locally, it also leads to a significant decrease in the total interface conductance compared to unwrinkled regions. This study highlights the strong impact of wrinkles on the thermal properties of layered 2D materials.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Physical
Dongxu Yang, Xiangyi Chen, Dongsheng He, Andreas Frommhold, Xiaoqing Shi, Stuart A. Boden, Maria A. Lebedeva, Olga Ershova, Richard E. Palmer, Ziyou Li, Haofei Shi, Jianzhi Gao, Minghu Pan, Andrei N. Khlobystov, Thomas W. Chamberlain, Alex P. G. Robinson
Summary: The development of patterning materials at the nanoscale involves two trends: high sensitivity and resolution, and functionalization of resists for the construction of nanoarchitectures. Patterning of carbon nanostructures has been reliant on complicated pattern transfer processes. The researchers propose a fullerene-metal coordination complex for direct functional patterning of metal-containing carbon structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Theodoros Pavloudis, Joseph Kioseoglou, Richard E. Palmer
Summary: This study investigates the adsorption of molecules involved in the hydrogenation of 1-pentyne on Pd nanoclusters. The results show that 1-pentyne prefers to adsorb on the (100) facets of the nanoclusters and the binding energy increases with the size of the nanoclusters. On the other hand, pentenes have lower binding energy on smaller nanoclusters, suggesting easier desorption.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Alvin Orbaek White, Ali Hedayati, Tim Yick, Varun Shenoy Gangoli, Yubiao Niu, Sean Lethbridge, Ioannis Tsampanakis, Gemma Swan, Leo Pointeaux, Abigail Crane, Rhys Charles, Jainaba Sallah-Conteh, Andrew O. Anderson, Matthew Lloyd Davies, Stuart. J. Corr, Richard E. Palmer
Summary: The study demonstrates that carbon recovery from polystyrene plastic can be enhanced by the addition of solvents in the process of growing carbon nanotubes using liquid injection chemical vapour deposition.
Article
Environmental Sciences
Jack R. Howarth, Alvin Orbaek White, Ali Hedayati, Yubiao Niu, Richard E. Palmer, Kam W. Tang
Summary: Raman spectroscopy is a promising non-destructive method for investigating the uptake and dynamic fate of carbon nanotubes and other contaminants in aquatic organisms.
Article
Nanoscience & Nanotechnology
Wenkai Wu, Theodoros Pavloudis, Alexey V. Verkhovtsev, Andrey Solov'yov, Richard E. Palmer
Summary: This research investigates the mechanisms of neuromorphic nanoparticle-based devices through molecular dynamics simulations. The study reveals that atoms of the nanofilament aggregate towards the clusters, causing the middle of the wire to thin and break. The terminal nanoparticles fix the wire and act as recrystallization areas. Additionally, the width, length, and structure of the nanowires greatly influence the performance of the system.
Article
Chemistry, Multidisciplinary
Bo Xie, Bosheng Ding, Peng Mao, Ying Wang, Yini Liu, Minrui Chen, Changjiang Zhou, Hui-min Wen, Shengjie Xia, Min Han, Richard E. Palmer, Guanghou Wang, Jun Hu
Summary: This paper presents a hybrid hydrogen sensor composed of a Pd nanocluster film, a metal-organic framework (MOF), and a polymer. The polymer coating provides the sensor with excellent selectivity and resistance to CO poisoning. The MOF acts as an interface layer, improving sensing performance through altered hydrogen interaction and interfacial electronic coupling with the Pd nanoclusters.
Article
Chemistry, Multidisciplinary
Yafeng Zhang, Kai Ye, Qianru Liu, Juan Qin, Qike Jiang, Bing Yang, Feng Yin
Summary: A new synthetic approach to tune the 3D structure of PtCu alloys has been developed, resulting in the synthesis of PtCu nested skeleton cubes (NSCs) with high activity and stability for oxygen reduction reaction (ORR) catalysis. The PtCu NSCs exhibit remarkable mass activity and excellent stability compared to commercial Pt/C catalysts.
Article
Chemistry, Multidisciplinary
Varun Shenoy Gangoli, Thomas Mahy, Tim Yick, Yubiao Niu, Richard E. Palmer, Alvin Orbaek White
Summary: The article reports the use of face mask materials as a carbon precursor for the synthesis of multi- and single-walled carbon nanotubes. The carbon nanotubes were collected and turned into fibrils for electrical conductance testing. The results demonstrate the upcycling of waste materials into valuable materials with real-world applications.
Article
Chemistry, Multidisciplinary
Jerome Vernieres, Nathalie Tarrat, Sean Lethbridge, Erica Watchorn-Rokutan, Thomas Slater, David Loffreda, Richard E. Palmer
Summary: The atomic structures of silver nanoparticles differ under air exposure and vacuum, with the icosahedron structure predominant in the former. This deviation is attributed to the formation of surface oxide or sulphide species resulting from air exposure. Understanding the effects of ambient exposure on the atomic structure of nanoparticles is crucial for their real-world performance and applications.
COMMUNICATIONS CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
E. Kazimierska, Y. Niu, J. McCormack, C. Tizaoui, Richard J. Cobley, R. E. Palmer
Summary: The scaling up of nanoparticle beams provides a new way to fabricate functional nanostructured materials. In this study, lead clusters were successfully deposited onto planar sheets of porous carbon paper using the MACS method. The resulting nanocomposite film showed promising electrochemical properties for water purification.
JOURNAL OF NANOPARTICLE RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ji-an Chen, Yuyuan Qin, Yubiao Niu, Peng Mao, Fengqi Song, Richard E. Palmer, Guanghou Wang, Shuang Zhang, Min Han
Summary: We demonstrate a new type of disordered metasurface by densely packing plasmonic nanoclusters of ultrasmall size on a planar optical cavity. The system operates as a broadband absorber or offers a reconfigurable absorption band across the visible region, resulting in continuous wavelength-tunable photothermal conversion. We also present a method to measure the temperature of plasmonic metasurfaces via surface-enhanced Raman spectroscopy (SERS) by incorporating single-walled carbon nanotubes (SWCNTs) as an SERS probe within the metasurfaces. Our disordered plasmonic system generated by a bottom-up process offers excellent performance and compatibility with efficient photothermal conversion. Moreover, it provides a novel platform for various hot-electron and energy-harvesting functionalities.
Article
Engineering, Environmental
Saima Farooq, Rongsheng Cai, James McGettrick, Emmanuel Pean, Matthew Davies, Ahmed S. Al Harrasi, Richard Palmer, Chedly Tizaoui
Summary: Steroid hormones are a threat to human health and aquatic life as potent endocrine-disruptors. This study reports the visible-light induced photocatalytic degradation of estrone (E1) by hexagonal copper selenide (CuSe) nanoflakes. CuSe nanocrystals synthesized at low temperature exhibited high reactivity towards E1 even in the absence of light, and the degradation was attributed to the synergetic effects of adsorption, oxidation by CuSe, and photocatalytic degradation. CuSe nanocrystals have promising potential for treating endocrine-disrupting chemicals (EDC)-contaminated wastewaters.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Physical
Malcolm Dearg, Cesare Roncaglia, Diana Nelli, El Yakout El Koraychy, Riccardo Ferrando, Thomas J. A. Slater, Richard E. Palmer
Summary: The multi-dimensional potential energy surface (PES) of nanoparticles is crucial for understanding their structure and dynamic behavior. However, experimental measurements of PES parameters are limited. In this study, a new measurement methodology using a scanning transmission electron microscope was developed to obtain the isomer structures of single deposited nanoclusters. The results showed different isomers and opened up possibilities for dynamic measurements of various nanoparticles.
NANOSCALE HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Henrik Eliasson, Yubiao Niu, Richard E. Palmer, Henrik Gronbeck, Rolf Erni
Summary: Based on scanning transmission electron microscopy, direct evidence is provided to show how the metal-support interaction affects the structure of supported nanoparticles. It is found that Pt nanoparticles on CeO2 exhibit facet-dependent support interaction, which determines the dimensionality of the particles. Pt particles consisting of less than approximately 130 atoms prefer a 3D shape on CeO2(111) facets, while 2D raft structures are favored on CeO2(100) facets.
Article
Chemistry, Physical
Yubiao Niu, Emil Omurzak, Rongsheng Cai, Dinara Syrgakbek Kyzy, Zhanarbek Zhasnakunov, Abduraim Satyvaldiev, Richard E. Palmer
Summary: Silver nanoparticles were successfully prepared using the in-liquid pulsed plasma technique. The effect of different surfactants, including CTAB, PVP, and SDS, on the synthesis of Ag nanoparticles was explored. PVP surfactant resulted in spherical Ag nanoparticles with a diameter of 2.2 +/- 0.8 nm, while SDS surfactant yielded silver nanoparticles with a peak diameter of 1.9 +/- 0.4 nm. CTAB surfactant showed a broad size distribution.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
