Article
Optics
Pengfei Li, Shanshan Xue, Lu Sun, Xupeng Zong, Li An, Dan Qu, Xiayan Wang, Zaicheng Sun
Summary: Carbon dots (CDs) as an advanced fluorescent carbon nanomaterial have great potential, but the complexity of their PL mechanism and structure-function relationship poses major challenges to their development and applications. This study synthesized red emissive CDs and found that their PL mechanism is similar to DHQP, providing insights for the further development of tunable CDs.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Review
Cell Biology
Hyunbin Kim, In-Yeop Baek, Jihye Seong
Summary: This review introduces genetically encoded fluorescent biosensors that can precisely monitor the real-time activation process of G protein-coupled receptors (GPCRs) in live cells. These sensors allow observation of the activation process of GPCRs, including the binding of extracellular ligands, conformational changes of GPCRs, recruitment of G proteins or beta-arrestin, internalization and trafficking of GPCRs, and downstream signaling events associated with GPCRs.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Ting Meng, Zifei Wang, Ting Yuan, Xiaohong Li, Yunchao Li, Yang Zhang, Louzhen Fan
Summary: This study presents a gram-scale synthesis of red/green/blue solid-state fluorescent carbon quantum rings with high quantum yields, offering a potential alternative to REE-free phosphor-converted white LEDs. These R/G/B-SBF-CQRs-based LEDs emit warm white light with low CCT, high CRI, and high luminous efficiency, comparable to REE-phosphor-based LEDs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Cara E. Bradsher, Cayla D. Ontko, Alexandra C. Koziel, James R. McBride, Sandra J. Rosenthal
Summary: This research has found that ferroelectric behavior can be achieved in nanoparticles through ion exchange, with fluorescence retention achieved through CdS shelling before ion exchange, containing defects in the CdS shell rather than the fluorescent CdSe cores. The ferroelectric response remains constant with an increase in the number of CdS monolayers, while fluorescence retention also increases, reaching 99% at 8 monolayers, allowing for the addition of ferroelectric applications to the growing list of quantum dot applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Ruey-Shin Juang, Chien-Te Hsieh, Chih-Peng Kao, Yasser Ashraf Gandomi, Chun-Chieh Fu, Shou-Hsuan Liu, Siyong Gu
Summary: Highly fluorescent boron-doped graphene quantum dots were synthesized with green and red emission capabilities; By adjusting the concentration of B-dopant, the quantum yield of fluorescence reached high levels.
Article
Chemistry, Multidisciplinary
Hye Hyeon Han, Homan Kang, Seong-Jong Kim, Rahul Pal, Anand T. N. Kumar, Hak Soo Choi, Sei Kwang Hahn
Summary: Despite extensive research on molecular imaging contrast agents, there are still unmet medical needs for enhancing their signal-to-background ratio, brightness, photostability, and biocompatibility. This study assessed the feasibility of using fluorescent nanodiamonds (FNDs) as carbon-based photostable and biocompatible materials for molecular imaging applications. The results demonstrated the promising potential of HA-FND conjugates for targeted molecular imaging, especially in liver-targeted imaging.
Article
Chemistry, Applied
Xinyao Wang, Shiqi Liuye, Xinhuan Ma, Shiqiang Cui, Shouzhi Pu
Summary: A novel photo-controlled solid-state fluorescence switching based on carbon dots (CDs) and diarylethene was designed and constructed. The fluorescence switching not only had excellent modulation efficiency, but also exhibited good photochromic properties. The mechanism of the reversible fluorescence modulation was attributed to the FRET between the CDs (energy donor) and the closed-ring diarylethene (energy acceptor). This work suggests the strategy of constructing solid-state fluorescence switching is feasible, and will provide new ways for the potential application of CDs and diarylethene.
Article
Chemistry, Multidisciplinary
Jakub Slawski, Katarzyna Walczewska-Szewc, Joanna Grzyb
Summary: Controlled junctions of proteins and nanomaterials have potential applications in nanobiodevice construction. Crosstalk between sequential monolayers was studied using confocal microscopy and FLIM imaging, revealing the importance of coverage and distance between monolayers. Monte Carlo computation was used to estimate coverage in sequential monolayers. Quantum dots/protein-composed systems showed higher yield than predicted due to protein reorientation on nanoparticle surface. External application of poly-L-lysines modulated resonance energy transfer yield.
APPLIED SCIENCES-BASEL
(2023)
Article
Biochemistry & Molecular Biology
Kristyna Pavelicova, Lucie Vanickova, Yazan Haddad, Lukas Nejdl, Jan Zitka, Silvia Kociova, Filip Mravec, Tomas Vaculovic, Mirek Macka, Marketa Vaculovicova, Vojtech Adam
Summary: A new method for characterizing protein oligomerization based on FRET and capillary electrophoresis was reported, utilizing QDs and Cy3 as the donor-acceptor pair to study metallothionein dimer formation in the presence of Cd2+ ions. The successful monitoring and confirmation of MT dimer formation were achieved under aerobic conditions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Analytical
Nuo Duan, Kexin Ren, Mingqian Song, Xinyue Zhang, Zhouping Wang, Fei Jia, Shijia Wu
Summary: In this study, a dual-donor fluorescence resonance energy transfer (FRET) aptasensor was developed for simultaneous detection of histamine (HIS) and tyramine (TYR) using quantum dots and molybdenum sulfide nanosheets. The method showed good sensitivity and detection limits, and can be applied to the sensitive detection of biogenic amines in animal-derived foodstuff.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Amanpreet Singh, Gagandeep Singh, Navneet Kaur, Narinder Singh
Summary: In this study, a nano sensor system based on biomass-derived carbon quantum dots (CQDs) and naphthalimide was developed for ratiometric detection of nitric oxide (NO) in pure aqueous media. The sensor demonstrated high selectivity towards NO with a detection limit of 15 nM. Moreover, it was also utilized for the indirect detection of nitrite (NO2 ) in food samples for food safety and monitoring.
ANALYTICA CHIMICA ACTA
(2023)
Article
Spectroscopy
Sen Liao, Zui Ding, Shuo Wang, Fangyu Tan, Yi Ge, Yaqing Cui, Ni Tan, Hongqing Wang
Summary: Nitrogen-doped carbon dots (N-CDs) were synthesized using a facile, friendly, and one-step hydrothermal protocol, demonstrating good water solubility and stable fluorescence properties for the detection of p-nitrophenol. The fluorescence of N-CDs showed high quenching efficiency towards p-NP, with a linear relationship and low cytotoxicity and good biocompatibility in cell experiments. The N-CDs can be effectively used for the determination of p-NP in river water and industrial wastewater.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Nanoscience & Nanotechnology
Mehran Ghasemlou, Edwin L. H. Mayes, Billy J. Murdoch, Phuc H. Le, Chaitali Dekiwadia, Arturo Aburto-Medina, Fugen Daver, Elena P. Ivanova, Benu Adhikari
Summary: Graphene oxide quantum dots (GOQDs) are a type of high-performance carbonaceous nanomaterials with tunable photoluminescence, thermal and chemical stability, and biocompatibility. This study developed a facile strategy to engineer the interface of GOQDs through covalent doping with silicon. The doping of Si atoms into the graphitic framework of GOQDs led to tailored PL emissions and the use of Si-GOQDs on the surface of plastic films showed enhanced performance in water permeability reduction. Surface engineering of GOQDs was found to be important for improving the dispersibility and performance of nanocomposite films.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Biotechnology & Applied Microbiology
Hong Ruan, Li Zhou
Summary: The rapid industrialization has caused serious environmental problems and increased disease and healthcare issues. The development of simple and effective biosensors is crucial for disease prevention and treatment. Sulfur quantum dots, as a new fluorescent nanomaterial, offer great potential in the fields of bioimaging and biosensing.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Food Science & Technology
Shuo Yang, Jiang Lou, Limin Jing, Qijun Ding, Xia Li, Yifei Jiang, Zhuqing Liu, Wenjia Han
Summary: In this work, a collagen fiber-based ratiometric fluorescent aerogel was designed using carbon quantum dots as pH indicators and protoporphyrin IX as an internal reference. It showed excellent amine response and could detect ammonia concentration as low as 1.0 x 10-6 mg/L. The aerogel also exhibited good selectivity for biogenic amines and biocompatibility, making it a promising tool for food quality monitoring.
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.