Article
Chemistry, Analytical
Hongliang Wang, Dan Song, Yue Zhou, Jiayuan Liu, Anna Zhu, Feng Long
Summary: The significant fluorescence enhancement of CdSe/ZnS quantum dots induced by Hg2+ was observed for the first time using a CdSe/ZnS QD-modified fiber nanoprobe. The fluorescence enhancement mechanism was attributed to Zn-to-Hg cation exchange in the ZnS shell, forming a HgxZn1-xS/CdSe heterojunction. The maximum fluorescence intensity increased over eight times and the characteristic time was linearly dependent on Hg2+ concentration.
Article
Materials Science, Multidisciplinary
Vishal Kumar, Saurabh Kumar Saini, Neha Choudhury, Anshu Kumar, Binoy Maiti, Priyadarsi De, Mahesh Kumar, Soumitra Satapathi
Summary: In this study, optically resonant donor copolymers were utilized to enhance the sensitivity of a fluorescent copolymer towards electron-deficient nitroaromatic compounds (NACs) through ultrafast Forster resonance energy transfer (FRET). This method achieved a sensitivity of less than 1 mu M with a high Stern-Volmer constant. Comprehensive analysis using various spectroscopic techniques elucidated the quenching mechanism involved in the detection of NACs.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Spectroscopy
Qianqian Zhu, Haichen Mao, Jianjun Li, Jianli Hua, Jizhong Wang, Ran Yang, Zhaohui Li
Summary: In this study, Gly-GQDs were synthesized through post-modification of graphene quantum dots with glycine under alkaline conditions, showing excellent blue emission, high quantum yield, and enhanced selective and sensitive recognition capability towards mercury ion in aqueous solutions. The work demonstrates a promising approach for designing and synthesizing desired GQDs with specific functions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Florentin R. Nitu, Lorand Savu, Sorin Muraru, Ioan Stoian, Mariana Ionita
Summary: Label-free optical detection of low concentration of oligonucleotides in complex solutions containing proteins using graphene oxide remains challenging. In this study, a colloidal graphene oxide was used as a fluorescent probe quencher to detect microRNA-21 in cell culture medium, overcoming protein interference. The specific quenching-based method successfully detected oligo DNA-microRNA hybridization.
Article
Chemistry, Applied
Hong-Mei Zhao, Tao Sun, Jiang Wang, Ai-Ju Xu, Mei-Lin Jia, Bin Xue
Summary: A novel phosphorus-doped carbon nitride oligomer-based fluorescence sensor with needle-like nanostructures and terminal amino and hydroxyl functional groups was synthesized via hydrothermal reaction, showing selective quenching towards mercury (II) ions. The sensor achieved a minimum detection limit of 0.35 nmol L-1 in the range of 1-100 nmol L-1 and demonstrated sensitivity and accuracy in detecting mercury (II) ions in actual shrimp samples.
Article
Chemistry, Inorganic & Nuclear
Chengxiang Chu, Chengyue Zou, Yue Qiu, Danqun Huo, Yuanyi Deng, Xianfeng Wang, Guoren Xu, Changjun Hou
Summary: The rapid and sensitive detection of heavy metal ions is crucial for food safety and the environment. Carbon quantum dots-based probes, M-CQDs, and P-CQDs, were developed for the detection of Hg2+ using fluorescence resonance energy transfer and photoinduced electron transfer mechanisms. The M-CQDs exhibited fluorescence quenching, while the P-CQDs showed fluorescence enhancement upon the addition of Hg2+. Paper-based chips modified with M/P-CQDs were successfully used for visual Hg2+ sensing, enabling real-time detection in tap water and river water samples.
DALTON TRANSACTIONS
(2023)
Article
Biochemical Research Methods
Yue Hou, Ying Chen, Xiaoyan Guo, Wei Liu, Liu Zhang, Congcong Lv, Yunlong Xu, Yan Jin, Baoxin Li
Summary: The study introduces a novel aggregation-induced chemiluminescence (CL) sensor for accurate detection of mercury ions (Hg2+), which offers fast, sensitive, and selective capabilities. By utilizing the interaction between thiolate-protected gold complexes and Hg2+, the sensor demonstrates a linear detection range from 0.005 to 10 μg mL(-1) with a limit of detection of 3 ng mL(-1), showcasing promising prospects for simple and rapid monitoring of heavy metals.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Farah Noun, Evelyne Anastasia Jury, Rafik Naccache
Summary: Carbon dots prepared using glutathione and formamide as dual fluorescent metal sensing probes show selective behavior towards Pb2+ and Hg2+ ions, leading to the development of a robust ratiometric sensor with low-ppb detection sensitivity in water. Characterization techniques and acid-base theory reveal insights into the nature of metal-carbon dot interactions, which can be used to tailor properties for targeting specific metal ions and applicable to other fluorescent nanoparticle systems for metal sensing applications.
Article
Chemistry, Analytical
Fatemeh Rahimi, Mansoor Anbia
Summary: A novel fluorescent probe based on nitrogen-rich silicon quantum dots (NR-SiQDs) has been developed for sensitive detection of Hg2+ and CN- ions in water. The probe exhibited strong fluorescence emission, satisfactory salt tolerance, and superior photostability and pH stability. The detection of Hg2+ and CN- ions was achieved through an on-off-on mechanism.
Article
Chemistry, Multidisciplinary
Cheng-Chuan Chen, Shu-Cheng Lo, Pei-Kuen Wei
Summary: Label-free detection of mercuric ions in aqueous solutions was achieved using capped gold nanoslit arrays combined with electrochemical sensing technique. The system showed high sensitivity and selectivity towards Hg2+ ions, with a detection range from 100 μM to 10 nM and a detection limit of 1 μM. The developed system has the potential to be applied in detecting various chemicals and biomolecules.
Article
Engineering, Environmental
W. M. Piotrowski, K. Kniec-Stec, M. Suta, B. Bogielski, B. Pozniak, L. Marciniak
Summary: A new biocompatible thermometer CaGa4O7:0.01 % Mn2+, 0.05 % Cr3+ is proposed in this study to overcome the limitation of luminescence thermal quenching in high-resolution luminescent thermometers above 400 K. The thermal enhancement of Mn2+-based emission enables a high signal-to-noise ratio at temperatures above 520 K, making it suitable for ratiometric temperature readout and thermal imaging.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Spectroscopy
Yamin Yu, Wenlong Sheng, Caiyun Liu, Na Gao, Bin Tian, Hanchuang Zhu, Pan Jia, Zilu Li, Xue Zhang, Kun Wang, Xiwei Li, Baocun Zhu
Summary: A novel ratiometric fluorescent probe CMER was synthesized for efficient detection of mercury ions, showing fast response time and satisfactory bioimaging results.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Deepa Sebastian, Sithara Soman, R. Kala
Summary: A highly fluorescent and biocompatible GQD and N-functionalized DTP-PPD modified nanohybrid system was successfully developed for sensitive detection of Pb2+ ions. The modified GQD showed specific interaction towards Pb2+ ions, leading to fluorescence quenching with a detection limit of 1.02 nM.
Article
Biochemical Research Methods
Marco Mellado, Nicole Roldan, Rodrigo Miranda, Luis F. Aguilar, Manuel A. Bravo, Waldo Quiroz
Summary: In this research, a novel fluorescent substance chalcone was synthesized and its ability to detect mercury ions in aqueous solution was evaluated. The results showed that chalcone exhibited good selective fluorescence quenching effect on Hg(II), with low detection limits and a stoichiometry of 1:1.
JOURNAL OF FLUORESCENCE
(2022)
Article
Environmental Sciences
Qi Sun, Lixia Wang, Ying Li, Li Li, Shuping Li, Guangcan Zhu
Summary: Thiol-functionalized graphene oxide (GO-SH) was synthesized and used for efficient removal of mercury ion (Hg(II)) from water sources. GO-SH exhibited a removal efficiency of over 98%, which was approximately double that of pure GO treatment. The adsorption behavior could be well described by pseudo-second-order kinetic and Freundlich isotherm models. GO-SH also showed good stability and reusability. The adsorption mechanism involved the reaction between Hg(II) and the sulfhydryl groups on GO-SH.
Article
Engineering, Environmental
Enke Feng, Jingjing Li, Guangchao Zheng, Xue Li, Juanjuan Wei, Zhiqiang Wu, Xinxian Ma, Zhiming Yang
Summary: In this study, a conductive hydrogel with excellent mechanical properties, self-healing capability, multi-environment tolerance, and multiple stimuli-responsiveness was designed and prepared. It was successfully applied in strain sensors and shape memory materials, demonstrating outstanding performance in harsh environments.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Guangchao Zheng, Sulin Jiao, Wei Zhang, Shenli Wang, Qinghua Zhang, Lin Gu, Weixiang Ye, Junjun Li, Xiaochen Ren, Zhicheng Zhang, Kwok-yin Wong
Summary: Accurate research on the applications of chiral plasmonic metal nanoparticles with surface plasmon resonance (SPR) still face challenges. This study demonstrates the production of chiral plasmonic metal nanoparticles with tunable chiroptical activities. The results show that the chiral properties can be precisely tailored by adjusting the longitudinal SPR (LSPR) and the amount of gold nanorods as seeds. The functionalization of a shell of another metal or semiconductor can also achieve a shift of the chiral properties within the UV-vis-NIR region. Chirality transfer from the gold core to the silver shell leads to new chiral properties in the near-UV region.
Article
Chemistry, Multidisciplinary
Sulin Jiao, Yixin Liu, Shenli Wang, Shuo Wang, Fengying Ma, Huiyu Yuan, Haibo Zhou, Guangchao Zheng, Yuan Zhang, Kun Dai, Chuntai Liu
Summary: In this study, paper-based SERS substrates were fabricated by assembling silver nanoplates on cellulose filter papers. The results demonstrated that this substrate enables ultra-sensitive detection of pollutants, and could be of great practical significance.
Article
Chemistry, Physical
Yuan Zhang, Luxia Wang, Guangchao Zheng, Siyuan Lyu, Yao Zhang, Kainan Chang
Summary: In this article, a semiclassical theory is proposed to study subnanometer resolved fluorescence imaging of single molecules inside a plasmonic picocavity. The theory combines macroscopic quantum electrodynamics and open quantum system theories. Classical electromagnetic simulation and time-dependent density functional theory calculations are used to simulate the formation of the picocavity and predict Rabi oscillation dynamics and Mollow triplets spectrum. The study highlights the potential of coherently manipulating molecular states and exploring quantum optical phenomena using plasmonic picocavities.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Bing Ni, Mikhail Mychinko, Sergio Gomez-Grana, Jordi Morales-Vidal, Manuel Obelleiro-Liz, Wouter Heyvaert, David Vila-Liarte, Xiaolu Zhuo, Wiebke Albrecht, Guangchao Zheng, Guillermo Gonzalez-Rubio, Jose M. Taboada, Fernando Obelleiro, Nuria Lopez, Jorge Perez-Juste, Isabel Pastoriza-Santos, Helmut Coelfen, Sara Bals, Luis M. Liz-Marzan
Summary: A chiral growth method using cysteine as a dissymmetry inducer was developed to prepare gold nanorods with twisted morphology. Electron microscopy analysis suggests that the dissymmetry is caused by the development of chiral facets on the initial nanorods, resulting in a twisted shape. Cysteine plays a crucial role in assisting the enantioselective facet evolution, leading to the formation of highly chiral morphology with significant plasmonic optical activity.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Enke Feng, Guangchao Zheng, Xue Li, Mengzhen Zhang, Xiaoqin Li, Xinning Han, Linan Cao, Zhiqiang Wu
Summary: This study introduces PEDOT:PSS and ZB into the PAA network to construct a multipurpose hydrogel with excellent stretchability, tensile strength, freeze-tolerance, and solvent-resistant capability. Based on this hydrogel, a strain sensor with multi-environmental stability is fabricated, which can accurately monitor human motions and mechanical deformations in various solvent media and harsh climatic condition. Additionally, a flexible tube-shaped hydrogel is developed for liquid transportation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Miao-Miao Liu, Guang-Chao Zheng, Yang Wei, Dan Tian, Qing-Bo Zheng, Ling Huang, Juan Xie
Summary: Impurity doping can not only enhance the properties of nanomaterials but also affect the growth and nucleation of nanocrystals. In this study, Y3+ and Sc3+ ions were utilized to manipulate the shape, size, and luminescence properties of Na3ScF6:Yb/Er and NaYF4:Yb/Er samples. The doping of Y3+ led to a change in the shape and size of Na3ScF6:Yb/Er nanoparticles, while the co-existence of Na3ScF6:Yb/Er and NaYF4:Yb/Er nanoparticles was observed during Y3+ doping. Both Y3+ and Sc3+ doping enhanced the upconversion luminescence intensity, and a possible mechanism was proposed based on the crystal structure. Finally, the details of the upconversion luminescence were revealed.
Review
Chemistry, Multidisciplinary
Jiaqi Chen, Xiaoyang Liu, Guangchao Zheng, Wei Feng, Pan Wang, Jian Gao, Jianbo Liu, Mingzhe Wang, Qingyuan Wang
Summary: Glucose monitoring is crucial for evaluating glucose metabolism disorders. Noble metal nanozymes (NMNZs) are widely used due to their excellent properties. This review summarizes the chemical mechanism of NMNZs with glucose oxidase and peroxidase mimicking activities, and presents detailed strategies for regulating their enzyme-like activities. It also describes the design of NMNZs with enantioselective recognition of D-glucose and L-glucose. The review concludes with discussions on potential solutions to existing challenges and future development possibilities.
Article
Chemistry, Multidisciplinary
Xiaoli Fu, Shenli Wang, Stefanos Mourdikoudis, Junlu Sun, Xing Liu, Weiwei Fu, Yuan Zhang, Fengying Ma, Erjun Liang, Guangchao Zheng
Summary: Plasmonic AgAu hollow hexagonal nanoplates with multitips were successfully synthesized using a simple approach with suitable reducing agents, showing enhanced catalytic properties. The presence of controlled multitips leads to an increased localized electromagnetic field effect in the structures.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Xing Liu, Yanli Du, Shenli Wang, Yu Huang, Yongzhi Tian, Daniel Garcia-Lojo, Ignacio Perez-Juste, Jorge Perez-Juste, Isabel Pastoriza-Santos, Guangchao Zheng
Summary: This article investigates the synthesis of chiral cobalt oxide nanoparticles mediated by histidine and discovers their unique and tunable chiroptical properties. The analysis indicates that the ratio of Co2+/Co3+ and their interactions with the imidazole groups of histidine are behind their chiral properties. Furthermore, the study demonstrates the use of chiral cobalt oxide nanoparticles for the development of sensitive and enantioselective circular dichroism-based sensors.
Review
Materials Science, Multidisciplinary
Xing Liu, Yanli Du, Stefanos Mourdikoudis, Guangchao Zheng, Kwok-Yin Wong
Summary: This review summarizes recent research works on the synthesis, properties, and applications of chiral magnetic oxide nanomaterials (CMONs), which combine the beneficial effects of chirality and magnetism in a single unit. The simultaneous presence of magnetic properties, catalytic activity, biocompatibility and optical activity, or magneto-optical effects, makes CMONs widely applicable in biomedical, optical, and electronic devices as well as in catalysis and sensing.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jia-Qi Chen, Han-Bo Li, Xi Lu, Xiao-Yang Liu, Wei Feng, Pan Wang, Jian-Qiang Zhao, Zhen-Yu Zhu, Guang-Chao Zheng, Xiao-Chun Wu
Summary: This study demonstrates the synthesis of plasmonic nanoparticles (PNPs) with enhanced gap-enhanced Raman scattering (GERS) and plasmonic circular dichroism (PCD) signals. By modulating the growth process with thiol molecules, the researchers were able to achieve synergistic enhancement of GERS and PCD signals. The combination of 4-aminophenol and cysteine played roles as Raman reporter and chiral stimulus, respectively. The concentration of these molecules controlled the GERS and PCD signals, and also influenced the morphology of the PNPs.
Article
Materials Science, Multidisciplinary
Xuan-Ming Shen, Yuan Zhang, Shunping Zhang, Yao Zhang, Qiu-Shi Meng, Guangchao Zheng, Siyuan Lv, Luxia Wang, Roberto A. Boto, Chongxin Shan, Javier Aizpurua
Summary: In this paper, we develop a quantum master-equation theory to study the optomechanical effects in surface-enhanced resonant Raman scattering (SERRS) from a single molecule in a nanoparticle on mirror (NPoM) nanocavity. We use electromagnetic simulations and time-dependent density functional theory calculations to supplement the theory and study the SERRS of a methylene blue molecule in a realistic NPoM nanocavity. The simulations allow us to identify conditions for conventional optomechanical effects and discover distinct behaviors in SERRS.
Article
Materials Science, Multidisciplinary
Jia-Qi Chen, Han-Bo Li, Xi Lu, Xiao-Yang Liu, Wei Feng, Pan Wang, Jian-Qiang Zhao, Zhen-Yu Zhu, Guang-Chao Zheng, Xiao-Chun Wu
Summary: A synthetic guideline to obtain PNPs with synergistically enhanced GERS and PCD signals through two-thiols-modulated growth has been demonstrated. These PNPs have potential applications in enantiomeric recognition, cancer therapy, and activation of the immune system.
Review
Chemistry, Physical
Stefanos Mourdikoudis, Melita Menelaou, Nadesh Fiuza-Maneiro, Guangchao Zheng, Shuangying Wei, Jorge Perez-Juste, Lakshminarayana Polavarapu, Zdenek Sofer
Summary: In recent decades, various colloidal chemical approaches have been developed to synthesize nanostructured materials in controlled manner. This review focuses on the role of oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles, discussing how the binding strengths and modes of these ligands affect the size and shape of the nanoparticles.
NANOSCALE HORIZONS
(2022)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
