Article
Engineering, Electrical & Electronic
Shuoke Xu, Xikui Ma, Yangyang Li, Yuanyuan Qu, Mingwen Zhao
Summary: Two-dimensional multiferroic materials provide a unique platform for the development of next-generation multifunctional devices. A stable 2D configuration of a lead oxide monolayer is proposed to achieve the coupling between ferroelectricity and ferroelasticity. This material can be used to regulate mechanical and electronic properties and design nanoscale devices.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Tian Zhang, Jia-He Lin, Xiao-Lin Zhou, Xiao Jia
Summary: In this study, a novel and stable pentagonal structure of tellurene (SP-type Te) was designed and compared with other tellurium allotropes in terms of mechanical, electronic, and thermoelectric properties. It was found that SP-type Te exhibited higher expandability and unique Poisson's ratio characteristics, with the potential to transform into a topological insulator under strain. Additionally, SP-type Te demonstrated low lattice thermal conductivity and high ZT values, indicating promising applications in low-dimensional mechanical, spintronic, and thermoelectric devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Ziyang Qu, Meiling Xu, Shuyi Lin, Yiwei Liang, Xuanhao Yuan, Feilong Wang, Jian Hao, Yinwei Li
Summary: In this study, a two-dimensional material called Si2S with a negative Poisson's ratio was predicted using first-principles methods. The Si2S monolayer has a puckered lattice structure and exhibits negative Poisson's ratios along both x and y directions. It also shows semiconductor properties and a high absorption coefficient for visible light, as well as good oxidation resistance. These versatile properties make Si2S a promising material for nanodevices.
Article
Materials Science, Multidisciplinary
Yucheng Zhu, Xiaofei Cao, Yuan Tan, Yao Wang, Jun Hu, Baotong Li, Zhong Chen
Summary: In this study, a two-dimensional material (space group R3 over bar m) with a negative Poisson's ratio (NPR) and a maximum NPR of -0.0846 in-plane was discovered using first-principles calculations. The NPR is mainly attributed to its unique zigzag structure and the strong interaction between Mo's 4d orbital and S's 3p orbital. Molecular dynamics simulations indicate the thermodynamic stability of this material. This research reveals the potential of layered MoS2 as a promising 2D NPR material for nanodevice applications.
Article
Crystallography
Hao Yuan, Guan Huang, Guangzhao Qin, Lichuan Zhang, Yuee Xie, Yuanping Chen
Summary: The origin of the negative Poisson's ratio (NPR) in 2D honeycomb structures is explained by the variation of the zigzag chains under strains. The NPR occurs along the armchair-chain direction rather than the zigzag-chain direction in these materials. Some two-dimensional carbon networks also exhibit the NPR phenomenon under small strains. This study is important for understanding the origin of NPR in honeycomb systems and guiding the design of auxetic nanostructures.
Article
Chemistry, Physical
Minglei Sun, Udo Schwingenschlogl
Summary: The two-dimensional delta-phase carbon monochalcogenides exhibit very strong auxetic properties, with negative Poisson's ratio in all crystal directions. Furthermore, they are direct or quasi-direct bandgap semiconductors with impressive absorption of solar radiation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
V Harinarayana, Y. C. Shin
Summary: In this study, a comprehensive design and fabrication of a three-dimensional axisymmetric auxetic structure that exhibits uniform and axisymmetric transverse deformation under longitudinal compression loading is proposed. The design of the metamaterial is generated by revolving a two-dimensional parabolic curve along the axis of rotation and subsequently perforating the structure periodically with elliptical voids. The significance of the perforations is elucidated by comparing the metamaterial structure to a plain structure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Analytical
Yanting Tang, Kai Yang, Zhongqiu Hua, Fuxing Yin, Wenjing Yuan
Summary: By incorporating chemically passivated phosphorene with a porous polymer, a new sensing material design was developed for improved gas sensing performance, including extended ambient stability and enhanced sensitivity.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Penghua Ying, Xiaowen Li, Xiaobin Qiang, Yao Du, Jin Zhang, Lang Chen, Zheng Zhong
Summary: This paper investigates the mechanical behaviors of two-dimensional violet phosphorene (VP) nanosheets under uniaxial tension using first-principles calculations. It is found that VP undergoes a phase transformation under specific strain, resulting in unique properties such as anomalous Poisson effect and mechanical anisotropy. Moreover, the band gap of VP decreases with increasing strain.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Ashutosh Giri, Austin M. Evans, Muhammad Akif Rahman, Alan J. H. McGaughey, Patrick E. Hopkins
Summary: This article demonstrates that stacks of two-dimensional covalent organic frameworks possess unique physical properties, including low densities, high thermal conductivities, and highly negative Poisson's ratios. These properties arise from their singular layered architecture and structural modularity.
Article
Mechanics
Jianfei Yao, Rujie Sun, Fabrizio Scarpa, Chrystel Remillat, Yu Gao, Yongfei Su
Summary: This study investigates the in-plane uniaxial tensile mechanical properties of two-dimensional graded rectangular perforations metamaterials using numerical homogenization finite element approaches benchmarked by experimental results. The metamaterial configuration is based on graded patterns of center-symmetric perforated cells that can exhibit an auxetic behavior. The overall stiffness behavior of the graded perforated metamaterial plates features a higher degree of compliance that depends on both the geometries of the cells of the graded areas and the graded pattern used.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
Qingqing Feng, Xingxing Li, Jinlong Yang
Summary: Researchers designed a two-dimensional metal-organic framework, Cr(DCNQI)(2), with good dynamic, thermal, and mechanical stabilities. This material exhibits an unusual in-plane negative Poisson's ratio, intrinsic ferrimagnetism, and behaves as an intrinsic bipolar magnetic semiconductor.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Hyekyoung Choi, Bok-Ki Min, Sung-Jae Joo, Bong-Seo Kim, Kyoungho Lee, Hyelin Kang, Yeon Hyang Sim, Min Ju Yun, Dong Yoon Lee, Seung I. Cha
Summary: Wearable thermoelectric generators use deformable gaskets filled with air to support thermoelectric legs, achieving thermal isolation and a larger temperature difference. The deformable gasket also has reversible auxetic metastructure, suitable for stretchable wearable devices. This approach provides an efficient way to convert thermal energy into electrical energy and expands potential applications for self-powered wearable electronics.
ADVANCED ENERGY MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Vivek Chaudhary, P. Neugebauer, O. Mounkachi, S. Lahbabi, A. El Fatimy
Summary: Phosphorene, as a 2D material, has unique electronic and optical properties, making it promising for high-speed electronics, optoelectronics, and biomedical applications. This review summarizes its chemical and physical properties, discusses recent progress in synthesis, surveys its application in devices, and outlines the remaining challenges and potential applications of phosphorene.
Article
Engineering, Electrical & Electronic
Weihua Gao, Jiantao Yao, Kunming Zhu, Pengwei Zhao, Xinbo Chen
Summary: This research proposes an innovative mechanical structure method by embedding a PDMS elastomer with negative Poisson's ratio (NPR) in a graphene-silicon rubber foam composite (rGO-PDMS/SR), which effectively improves the mechanical performance and resistance variation range for interactive information monitoring of multiple parts of the human body. The experimental results show that the rGO-PDMS/SR has expanded resistance variation range by six times compared to ordinary graphene-silicon rubber composites (rGO-SR), with high linear sensitivities and reliable stability during cyclic compression. Human interaction experiments demonstrate its good performance in signal detection for facial expression judgment, motion state monitoring, and other fields.
IEEE SENSORS JOURNAL
(2023)
Article
Plant Sciences
Zhengjun Cui, Zechariah Effah, Bin Yan, Yuhong Gao, Bing Wu, Yifan Wang, Peng Xu, Haidi Wang, Bangqing Zhao, Yingze Wang
Summary: In this two-year experiment, it was found that irrigation of 1800 m(3) ha(-1) coupled with 60 kg N ha(-1) nitrogen fertilizer application can improve oilseed flax grain yield, yield components, water-use efficiency, and nitrogen partial factor productivity.
Article
Biochemistry & Molecular Biology
Changjing Li, Jing Shen, Jun Wang, Chunxiu Bao, Boxi Li, Li Liu, Haidi Wang, Xufeng Zhang
Summary: Mechanically robust and macro-porous hydrogels are needed for effective removal of heavy metals in wastewater. In this study, a novel microfibrillated cellulose/polyethyleneimine hydrogel was fabricated for Cr(VI) adsorption. The hydrogel had excellent compressive stress and macro-porous structures, and showed superior performance for Cr(VI) adsorption compared to other materials. This work demonstrates a promising method for preparing robust materials for heavy metal removal from wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Zhongjun Li, Yahui Zheng, Guojun Li, Hanxi Wang, Weiduo Zhu, Haidi Wang, Zhao Chen, Yupeng Yuan, Xiao Cheng Zeng, Yucheng Wu
Summary: The deviation of the Schottky barrier (SB) in the ultraclean van der Waals contact between 2D MoS2 and 3D In from the Schottky-Mott limit (SML) is investigated. The deviation is found to be attributed to the combined effects of interface potential difference (?V) and Fermi-level shift (?E-F). By coating a thin film of Au, Sc, or Ti on the back side of In, the deviation and the sum of ?V and ?E-F can be reduced. Particularly, the SB is significantly reduced to 0.12 eV in the Ti coating case. This interface engineering can be applied to regulate the SB between a 2D semiconductor and a 3D alloy.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Jing Cheng, Qingqing Feng, Xingxing Li, Jinlong Yang
Summary: Cluster-assembled materials with intrinsic ferromagnetism and desirable electronic and magnetic properties are designed by utilizing a magnetic superatomic cluster [Fe6S8(CN)(6)](5-) as the building block. The properties of the 2D nanosheets can be easily modulated by electron and hole doping, and the Curie temperatures can be improved by choosing different transition metals. [NH4](3)[Fe6S8(CN)(6)]Cr is a bipolar magnetic semiconductor, while the other three ([NH4](3)[Fe6S8(CN)(6)]-TM (TM = Mn, Fe, Co) are half semiconductors.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xiangyang Li, Qing-Bo Liu, Yongsen Tang, Wei Li, Ning Ding, Zhao Liu, Hua-Hua Fu, Shuai Dong, Xingxing Li, Jinlong Yang
Summary: By tuning the spin state of organic linkers and the symmetry/topology of crystal lattices, a new class of multifunctional 2D Cr(II) five-membered heterocyclic metal organic frameworks has been predicted. These materials simultaneously possess auxetic effect, room temperature ferrimagnetism, chiral ferroelectricity, electrically reversible spin polarization, and topological nodal lines/points. Exemplified by 2D Cr(TDZ)2, it exhibits topological nodal lines and a quadratic nodal point in the Brillouin zone.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Biochemistry & Molecular Biology
Haidi Wang, Tao Li, Xiaofeng Liu, Weiduo Zhu, Zhao Chen, Zhongjun Li, Jinlong Yang
Summary: This work presents the mech2d package, a highly automated toolkit for calculating and analyzing the mechanical properties of 2D materials by considering their symmetry. It can fit the second-order elastic constants (SOECs) using both strain-energy and stress-strain approaches. The mech2d package can automatically submit and collect tasks from local or remote machines, making it suitable for high-throughput calculation.
Review
Green & Sustainable Science & Technology
Peng Xu, Yuhong Gao, Zhengjun Cui, Bing Wu, Bin Yan, Yifan Wang, Keranmu Zaitongguli, Ming Wen, Haidi Wang, Na Jing, Yingze Wang, Changyan Chao, Wenfang Xue
Summary: Biochar, as a by-product of biomass pyrolysis, has exceptional effects on improving the soil environment, enhancing soil fertility, and promoting nutrient uptake and utilization by crops. Recent breakthroughs have been made in understanding the fertility value of biochar, as well as its physicochemical properties, soil pollution remediation, greenhouse gas emissions, and effects on nutrient uptake and utilization. Further research should focus on the long-term effects of biochar application on agricultural ecosystems, providing a theoretical reference for its physiological and ecological impacts.
Article
Chemistry, Physical
Mingqi He, Xing Chen, Yanan Zhou, Chang Xu, Xingxing Li, Qiquan Luo, Jinlong Yang
Summary: Using first-principles calculations, single transition-metal (TM) atoms Mo, Re, and Os embedded in nitrogen vacancy of the MoSi2N4 monolayer were screened as potential catalysts for electrochemical nitrogen reduction reaction. The spin states of these active centers can be precisely tuned through a simple doping strategy, and doping one O atom into the system significantly improves catalytic activity. The findings provide insight into designing and controlling spin-related catalytic performance in heterogeneous catalysis.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Junyao Li, Xingxing Li, Jinlong Yang
Summary: This study proposes a chemical method to reversibly control the spin order of two-dimensional organometallic lattices by utilizing lactim-lactam tautomerization. By designing several 2D organometallic frameworks, the transition from antiferromagnetic to ferrimagnetic spin order is achieved through tautomerization on organic linkers. This transition also alters the materials' electronic structures and enhances the magnetic anisotropy energy.
Article
Chemistry, Multidisciplinary
Yujie Hu, Shanshan Liu, Jing Huang, Xingxing Li, Qunxiang Li
Summary: Researchers propose using bipolar magnetic molecules as the core component of single-molecule devices to generate pure spin currents through the spin Seebeck effect with applied temperature gradient. The spin Seebeck coefficient can also be modulated over a wide range by applying an external gate voltage.
Article
Chemistry, Multidisciplinary
Min Ren, Xiangyu Zhu, Qiquan Luo, Xingxing Li, Jinglong Yang
Summary: In this study, it is proposed to utilize spin crossover in two-dimensional metal-organic frameworks (MOFs) to achieve reversible control of oxygen evolution reaction (OER) catalytic activity. The theoretical design of a 2D MOF confirms the significant reduction of overpotential from the high spin state to the low spin state, resulting in a reversible switch for OER activity. Microkinetic and constant potential method simulations also confirm the high activity of the low spin state.
Article
Materials Science, Multidisciplinary
Chao Jia, Xingxing Li, Qunxiang Li, Jinlong Yang
Summary: By using H- instead of O2- as a magnetic mediator, the Tc of the hydride double perovskite A2NiVH6 can be notably raised beyond 300 K, due to the perfect 180 degrees bond angle and short interaction distance between magnetic ions. The A2NiVH6 compounds are identified as intriguing bipolar magnetic semiconductors with reversible spin orientation controlled by electrical gating.
Article
Chemistry, Multidisciplinary
Zhao Chen, Xiaofeng Liu, Xingxing Li, Pengfei Gao, ZhongJun Li, Weiduo Zhu, Haidi Wang, Xiangyang Li
Summary: In this study, a two-dimensional MTJ structure with efficient electrical writing, reliable reading operations, and the potential to work at room temperature is proposed. The magnetization of the center layer can be reversed by changing the direction of the electric field, resulting in a 180 degrees magnetization reversal. The TMR ratios reach satisfactory values of 2.56 x 10(3)% at room temperature. This proposed MTJ structure has the potential to be a high-performance spintronic device.
Article
Chemistry, Physical
Zhongjun Li, Yahui Zheng, Guojun Li, Hanxi Wang, Weiduo Zhu, Haidi Wang, Zhao Chen, Yupeng Yuan, Xiao Cheng Zeng, Yucheng Wu
Summary: The Schottky barrier (SB) in the van der Waals contact between MoS2 and indium deviates from the Schottky-Mott limit (SML). The deviation is attributed to the combined effects of interface potential difference (Delta V) and Fermi-level shift (Delta EF). Coating a thin film of Au, Sc, or Ti on the back side of indium can mitigate the SB deviation and decrease Delta V and Delta EF. Notably, the Ti coating reduces the SB to 0.12 eV, smaller than the value in the Au coating case.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
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.