Article
Chemistry, Multidisciplinary
Bowen He, Xi Liu, Liwei Chen
Summary: By using advanced transmission electron microscope techniques, two alternative particle attachment growth pathways dominating the growth of Au@Ag core-shell nanocuboids are directly observed. One pathway involves the in situ reduction of AgCl nanoparticles attached to Au nanorods and the subsequent epitaxial growth of the Ag shell. The other pathway involves the adherence of Ag-AgCl Janus nanoparticles to Au nanorods with random orientations, followed by nanoparticle redispersion and the resulting formation of epitaxial Ag shells on the Au nanorods. The particle-mediated growth of Ag shells is accompanied by the redispersion of surface atoms, tending to form a uniform structure, providing a new mechanistic understanding of core-shell nanostructure synthesis.
Article
Chemistry, Physical
E. Shiju, T. Abhijith, Narayana D. Rao, K. Chandrasekharan
Summary: Core-shell structures with tunable multifunctional properties have been studied for their nonlinear optical behavior, showing enhanced optical limiting activity and negative nonlinearity with increasing shell thickness.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Hui Peng, Zipeng Xing, Weifeng Kong, Chunxu Wu, Bin Fang, Yongqian Cui, Zhenzi Li, Haixia Liu, Wei Zhou
Summary: Ternary plasmon Ag/CuInS2/BiVO4 S-scheme core-shell heterostructures with decahedral morphology were synthesized using hydrothermal, solvothermal, and photodeposition strategies. The combination of these strategies increased the specific surface area and provided sufficient surface-active spots for the photocatalytic reaction. Under visible light irradiation, the photocatalytic degradation rate of plasmon Ag/CuInS2/BiVO4 for Bisphenol A in water was up to 98.8%, with a hydrogen yield of 6.493 mmol h-1, several times higher than that of pristine ones. The quantum efficiency at 420 nm light was 11.3%. Meanwhile, it exhibited a strong inhibitory effect on Escherichia coli and Staphylococcus aureus in water due to the unique broad-spectrum bactericidal effect of Ag nanoparticles and the bactericidal effect of reactive oxygen radicals. The robust photocatalytic performance can be attributed to the particular S-scheme core-shell heterojunction favoring spatial charge separation, the surface plasmon resonance of Ag nanoparticles extending long wavelength light response, and obvious photothermal effect. This study presents a new tactic for manufacturing efficient S-scheme heterojunction photocatalysts for solar energy conversion.
Article
Environmental Sciences
Pooja Rani, Rajender S. Varma, Karanpal Singh, Roberto Acevedo, Jagpreet Singh
Summary: A waste leaf extract can be used to generate cost-effective gold and gold-silver core-shell nanoparticles, which exhibit improved catalytic and antibacterial capabilities compared to single-metal nanoparticles. This method is effective in removing contaminants from water and countering antibiotic resistance, and it is cost-effective and sustainable.
Article
Chemistry, Multidisciplinary
Jun Dong, Chengyuan Yang, Haoran Wu, Qianying Wang, Yi Cao, Qingyan Han, Wei Gao, Yongkai Wang, Jianxia Qi, Mengtao Sun
Summary: This paper investigates the influence of different self-assembly methods on the enhancement of molecular Raman signals. The gold species growth method and liquid-liquid self-assembly and evaporation-induced self-assembly methods were used to prepare substrates with different arrangements of silver-coated gold nanocubes (Au@Ag NCs). The optimal arrangement of NCs was determined by comparing the Raman signal detection of probe molecules. The results show that the island membrane Au@Ag NCs array substrate obtained by evaporation-induced self-assembly has strong local electromagnetic fields, enabling it to have great potential in molecular detection, biosensing, and food safety monitoring.
Article
Engineering, Chemical
Jie Yu, Dan Zhu, Cong Qi, Wenjie Zhang
Summary: To enhance the efficiency of solar photothermal conversion, core-shell Ag@Fe3O4 nanoparticles with strong absorbance were synthesized and the resulting nanofluids showed good stability, photothermal properties, and recoverability. The impact of nanoparticle concentration, light intensity, and nanofluid depth on photothermal performance and evaporation efficiency was investigated. The results revealed that the Ag@Fe3O4 nanoparticles exhibited surface plasmon resonance (SPR) effect, effectively converting photon energy to heat energy. Compared to deionized water, a concentration of 200 ppm led to a temperature increase of 21.52% and an evaporation increase of 117.42%. Increasing nanofluid depth led to higher temperature gradient and heat loss, while increasing light intensity improved evaporation volume but had a negative effect on sensible heat efficiency.
Article
Chemistry, Multidisciplinary
Yanfang Hu, Yonglong Li, Linfeng Yu, Yuying Zhang, Yuming Lai, Wei Zhang, Wei Xie
Summary: A universal assembly methodology for preparing hetero-superstructures is introduced in this study, enabling the assembly of building block materials without the need for molecular linkers and utilizing surface property modulation to achieve self-organization. The resulting superstructures exhibit superior photocatalytic activity and Raman scattering performance.
Article
Chemistry, Analytical
Jianrong Cao, Yali Huang, Ziyang Shang, Xin Liu, Chengyin Lu, Hongping Chen, Pei Liang, Guicen Ma
Summary: Three-dimensional (3D) supraparticles consisting of core-shell Au@Ag nanoparticles were successfully prepared via simple evaporation assembly. The supraparticles with non-close packed structure created numerous 3D hotspots, resulting in significantly enhanced surface-enhanced Raman scattering (SERS) performance. Compared to 3D multilayered structures assembled by Au@Ag nanoparticles, the supraparticles exhibited eight times higher enhancement for SERS behavior. Moreover, the supraparticles demonstrated excellent sensitivity and high reproducibility in detecting pesticides and antibiotics in both organic and aqueous solvents.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Abeer Fahes, Aotmane En Naciri, Mohamad Baker Shoker, Suzanna Akil
Summary: Two distinct Ag/Au nanocomposites, namely, hetero-oligomers and eccentric core/shells were obtained. The structures of the final products were controlled by Ag concentration-dependent, facet-specific passivation, and presence or absence of anisotropic facets. Ag additives acted as shape-directing agents due to an underpotential deposition (UPD) that stabilized the various surface facets of the AuNPs.
Article
Optics
Pradeep Bhatia, S. S. Verma, M. M. Sinha
Summary: The study found that the localized surface plasmon resonance (LSPR) for absorption and efficiency strongly rely on the geometry, aspect ratio, core sizes, and shell thickness of the nanoparticle. The absorption spectra generally fall within the 335-717 nm wavelength ranges and can be adjusted for desired biomedical applications in the UV-NIR region of the electromagnetic spectrum.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2021)
Article
Chemistry, Analytical
Yuqiu Wang, Shuchang Liu, Yongjun Hu, Cuicui Fu, Weiqiang Chen
Summary: Researchers developed a highly sensitive and stable SERS-active substrate by encapsulating Au nanorods in a bilayer silver shell with Raman reporter molecules. The substrate exhibited high reproducibility and stability, and showed significantly improved SERS intensity and detection sensitivity compared to other substrates. It was able to detect the pesticide thiram at a very low concentration, making it a promising tool for ultrasensitive analyte detection.
Article
Materials Science, Multidisciplinary
Jia-Jun Qiu, Ting-Ting Yang, Yi-Fan Li, Wen-Hao Qian, Xuan-Yong Liu
Summary: Au@Ag@Pt core-shell nanorods with noble metal combination were fabricated and assembled on medical titanium surface to investigate their antibacterial activity and biocompatibility. The Pt shell layer on Ti-Au@Ag@Pt was found to slow down the Ag ion release rate, which endowed the medical titanium surface with both antibacterial activity and good biocompatibility without obvious cell toxicity. The antibacterial rates of Ti-Au@Ag@Pt against S. epidermidis and P. aeruginosa were 89.7% and 92.7%, respectively.
Article
Chemistry, Multidisciplinary
Qiuzheng Du, Ziwei Jing, Hang Qi, Lihua Zuo, Lin Zhou, Hua He, Zhi Sun
Summary: This work introduced a new colorimetric sensor for quantitative detection of clindamycin utilizing Au@Ag core-shell nanoparticles (Au@Ag NPs). The sensor showed good selectivity and sensitivity for clindamycin, providing a convenient and visually effective detection method. The study demonstrated the potential for visualization detection of other targets with a simple, rapid, intuitive, and low-cost approach.
Review
Chemistry, Multidisciplinary
Shengyun Huang, Yannan Liu, Maziar Jafari, Mohamed Siaj, Haining Wang, Shuyong Xiao, Dongling Ma
Summary: The design of flexible electrochromic devices requires careful consideration of each component for improved performance and stability. A novel flexible organic EC device using Ag-Au core-shell nanowire networks, EC polymer, and solid electrolyte shows excellent stability and high capacitance, with reversible transmittance modulation in visible and near-infrared regions. This device also demonstrates outstanding flexibility and fast switching time.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Analytical
Ruipeng Chen, Yunfeng Sun, Bingyang Huo, Zefeng Mao, Xiaojuan Wang, Shiyu Li, Ran Lu, Shuang Li, Jun Liang, Zhixian Gao
Summary: A universal surface-enhanced Raman scattering (SERS) aptasensor was developed for the detection of Zearalenone (ZEN) with a linear detection range from 0.005 to 500 ng mL(-1) and a detection limit of 0.001 ng mL(-1). The sensor showed excellent performance for analytical applications with real-world samples.
ANALYTICA CHIMICA ACTA
(2021)
Review
Instruments & Instrumentation
Hulin Zhao, Wenwen Li, Jing Li, Yinghua Sun, Qianli Yang, Mengtao Sun
Summary: Various diseases in China pose a serious threat to the health of residents. The sensitive and accurate analysis of disease markers is crucial for early diagnosis, treatment, and prognosis evaluation. Surface-enhanced Raman spectroscopy (SERS) has shown promising potential as a noninvasive, highly sensitive, and fast biological detection technology. This paper reviews the recent research progress of SERS technology in analyzing disease markers in serum, urine, saliva, and tissue, discusses the challenges it faces, and provides future development prospects.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Article
Chemistry, Physical
Yingcui Fang, Lei Li, Huanhuan Li, Shiqi Zhao, Zhitao Cheng, Yujie Nian, Bin Xu, Xiangqian Chu, Mengtao Sun
Summary: The structure of copper nanoparticles in air has a significant impact on their photocatalytic performance, which is often overlooked. As the size of the nanoparticles increases, the photo-reduction efficiency of copper nanoparticles initially increases and then decreases, in contrast to silver nanoparticles. It was found that Cu2O plays a dominant role in small-sized particles, while both Cu2O and CuNPs contribute to the low photo-reduction efficiency in large-sized particles.
Article
Physics, Multidisciplinary
Zhiqiang Yang, Yichuan Chen, Jing Li, Chen Lu, Junfang Zhao, Mengtao Sun
Summary: The successful synthesis of fully fused and fully conjugated Mobius carbon nanobelts (CNBs) has generated significant interest. However, there is still a lack of theoretical calculations based on such pi-conjugated Mobius CNBs. In this study, we investigated the molecular spectroscopy of Mobius CNBs with and without n-butoxy groups using visualization methods. The results demonstrate that the presence of n-butoxy groups can have a significant impact on the optical performance of Mobius CNBs, altering electron-hole coherence and enhancing two-photon absorption cross-sections. This work provides a deeper understanding of the photophysical mechanisms of Mobius CNBs in one- and two-photon absorption and suggests potential applications in optoelectronic devices.
FRONTIERS OF PHYSICS
(2023)
Article
Physics, Applied
Yi Cao, Yanting Feng, Yuqing Cheng, Lingyan Meng, Mengtao Sun
Summary: Through the tip-enhanced Raman scattering system, we theoretically explore the plexcitons of a bilayer borophene synthesized on an Ag(111) film. In the strong-coupling region, the bilayer borophene exhibits plasmonic properties and shows Rabi splitting of plexcitons with 310 meV. In the weak-coupling region, the spectra exhibit typical asymmetry with Fano resonance. Single-mode lasing with ultrahigh enhancement factor up to 10^8 is achieved in the parity-time symmetry-broken regime, and Fano-resonant propagating plexcitons are observed.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Lijie Wang, Malte Oppermann, Michele Puppin, Benjamin Bauer, Tsz Him Chow, Jianfang Wang, Majed Chergui
Summary: We conducted ultrafast spectroscopic investigations on the coherent acoustic vibrations of Au/SiO2 and Au/TiO2 core-shell nanoparticles. The oscillations were observed in the deep-ultraviolet region and appeared as intensity modulations without changes in the spectra. The oscillation period of Au/SiO2 nanoparticles was similar to that of bare Au nanoparticles, indicating negligible coupling between the core and shell. In contrast, Au/TiO2 nanoparticles exhibited slower oscillations, implying a strong chemical interaction at the gold/TiO2 interface.
APPLIED PHYSICS LETTERS
(2023)
Review
Instruments & Instrumentation
Hulin Zhao, Wenwen Li, Jing Li, Qiansu Yang, Yinghua Sun, Mengtao Sun
Summary: This paper reviews the research progress of surface-enhanced Raman spectroscopy (SERS) in the nervous system in recent years. Firstly, it briefly introduces the current status of neurotransmitter testing and proposes the advantages of SERS detection technology. Secondly, it reviews the development status of SERS technology for neurotransmitters such as monoamines and amino acids. Thirdly, it mainly introduces the use of SERS for detecting neurological diseases and further introduces SERS-based microdevices. In addition, the diagnostic applications of SERS in malignant tumors of the nervous system are analyzed.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Baowen Li, Jianfang Wang, Tao Deng
Review
Chemistry, Multidisciplinary
Ximin Cui, Qifeng Ruan, Xiaolu Zhu, Xinyue Xia, Jingtian Hu, Runfang Fu, Yang Li, Jianfang Wang, Hongxing Xu
Summary: This review focuses on the latest advances in photothermal nanomaterials, exploring their potential and underlying mechanisms as powerful light-to-heat converters. Various nanostructured photothermal materials, including metallic/semiconductor structures, carbon materials, organic polymers, and twodimensional materials, are extensively reviewed. The impact of material selection and rational structural design on improving photothermal performance is discussed. The review also covers the latest techniques for probing photothermally generated heat at the nanoscale, recent significant developments in photothermal applications, and the current challenges and future directions of photothermal nanomaterials.
Article
Chemistry, Physical
Yuqing Cheng, Mengtao Sun
Summary: Plexciton is a new hybridized energy state formed by the coupling between a plasmon and an exciton. The optical properties of both the exciton and plexciton are described using a classic oscillator model, and the coupling case of plexciton is investigated in detail.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yao Lu, Tsz Him Chow, Ka Kit Chui, Jianfang Wang
Summary: Plasmon resonance and all-dielectric electromagnetic resonance are two types of electromagnetic resonance supported by inorganic nanostructures. Conductive polymers are emerging as a promising candidate for supporting electromagnetic resonance due to their softness, flexibility, tunable conductivities, and dielectric functions. This Perspective provides an overview of the research progress in electromagnetic resonance supported by organic conductive polymers and discusses the challenges in this field.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Multidisciplinary
Bing Luo, Wei Wang, Yuxin Zhao, Yanli Zhao
Summary: Surface plasmon resonance excitation enhances light absorption and hot electron generation. This has attracted significant attention in the biomedical field for applications such as biomolecule identification, drug synthesis and release, and tumor elimination. The review highlights recent developments in hot-electron dynamics for medical diagnosis and therapy, with a focus on fully integrated device techniques. The underlying mechanisms, experimental and theoretical studies, and challenges in biomedical engineering based on hot-electron dynamics are also discussed.
Article
Biochemistry & Molecular Biology
En Cao, Mengtao Sun
Summary: In this study, the spectral physics of Cu(III) complexes formed by oxidative addition were investigated theoretically, providing a deeper understanding of the mechanism behind the formation of stable Cu(III).
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Chemistry, Multidisciplinary
Shaofeng Wang, Jizhe Song, Mengtao Sun, Shuo Cao
Summary: This review presents extensive research on Moire materials in recent years, highlighting their significant properties and various applications. Moire superlattices exhibit superconductivity through flat-band and strong correlation effects, as well as topological properties. Modulating electronic interactions with magnetic fields enables the fractional quantum Hall effect in Moire materials. Moreover, Moire materials possess ferromagnetic and antiferromagnetic properties that can be achieved by tuning interlayer coupling and spin interactions. Lastly, the review discusses the applications of Moire materials in photocurrent, superconductivity, and thermoelectricity fields, showcasing their importance as a new dimension in the development of two-dimensional materials.
Article
Materials Science, Multidisciplinary
Yuqiang Wu, Jingang Wang, Mengtao Sun, Mingyan Chen, Lei Zhang
Summary: This study calculated the current-voltage characteristic curves, conductivity, real space charge distribution, transmission spectrum, photocurrent, and thermal current of the borophene-black phosphorus heterostructure. The results indicate that the zigzag device shows excellent photocurrent characteristics, with the direction of photocurrent adjustable by changing the wavelength of incident light and adding gate voltage. The armchair device exhibits excellent IV curve characteristics and good linear characteristics at low voltage, and also demonstrates good thermoelectric current properties. The distribution of covalent bonds formed between atoms in this heterostructure is revealed by the real space charge distribution. Our results are significant for the application of borophene-black phosphorus heterostructure in electric transport devices.
RESULTS IN PHYSICS
(2023)
Article
Spectroscopy
Yu Chen, Lichun Sun, Mengtao Sun, Youjin Zheng
Summary: This paper presents a theoretical study on the optical properties of carbon nanobelts with various edges and interlocked structures, focusing on their chirality. The results show that two photon absorption and electronic circular dichroism techniques can effectively distinguish carbon nanoribbons with different boundaries, providing insights into their relationship and unique features. This research contributes to a better understanding of carbon nanoribbons, mechanically interlocked molecules, and chirality.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
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.
