1
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Mei X, Du Q, Li J, Dong C. Sensitive detections for three kinds of vitamin B in aqueous solution and on test paper by fluorescent dual-emission carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124230. [PMID: 38581773 DOI: 10.1016/j.saa.2024.124230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/21/2024] [Accepted: 03/29/2024] [Indexed: 04/08/2024]
Abstract
Although a few of fluorescent probes based on carbon dots (CDs) for vitamin B (VB) determination have been emerged, none of them can realize the detection of different kinds of VB. In this paper, nitrogen, chlorine co-doped dual-emission CDs (N, Cl-CDs) with emissions at 404 nm and 595 nm have been easily synthesized. VB2, VB9 and VB12 can all induce obvious fluorescence turn-off response toward the N, Cl-CDs. Based on that, three types of VBs are quantitatively and sensitively evaluated in aqueous solution with wide concentration ranges of 14.9-135.0 μM, 34.7-89.8 μM and 29.8-79.8 μM, respectively. Importantly, visual semiquantitative detection of VBs on a test strip are also proposed. Moreover, the current N, Cl-CDs have been successfully applied to the detection of VBs in real samples. The N, Cl-CDs are sensitively multifunctional sensors for three kinds of VBs in aqueous solution and the visual semiquantitative detection by test paper assay is simple, portable and inexpensive.
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Affiliation(s)
- Xiping Mei
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Qian Du
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Junfen Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
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2
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Gorman J, Hart SM, John T, Castellanos MA, Harris D, Parsons MF, Banal JL, Willard AP, Schlau-Cohen GS, Bathe M. Sculpting photoproducts with DNA origami. Chem 2024; 10:1553-1575. [PMID: 38827435 PMCID: PMC11138899 DOI: 10.1016/j.chempr.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Natural light-harvesting systems spatially organize densely packed dyes in different configurations to either transport excitons or convert them into charge photoproducts, with high efficiency. In contrast, artificial photosystems like organic solar cells and light-emitting diodes lack this fine structural control, limiting their efficiency. Thus, biomimetic multi-dye systems are needed to organize dyes with the sub-nanometer spatial control required to sculpt resulting photoproducts. Here, we synthesize 11 distinct perylene diimide (PDI) dimers integrated into DNA origami nanostructures and identify dimer architectures that offer discrete control over exciton transport versus charge separation. The large structural-space and site-tunability of origami uniquely provides controlled PDI dimer packing to form distinct excimer photoproducts, which are sensitive to interdye configurations. In the future, this platform enables large-scale programmed assembly of dyes mimicking natural systems to sculpt distinct photophysical products needed for a broad range of optoelectronic devices, including solar energy converters and quantum information processors.
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Affiliation(s)
- Jeffrey Gorman
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- These authors contributed equally
| | - Stephanie M. Hart
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- These authors contributed equally
| | - Torsten John
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Maria A. Castellanos
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Dvir Harris
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Molly F. Parsons
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - James L. Banal
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Adam P. Willard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Mark Bathe
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Lead contact
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3
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Yan F, Wang X, Wang Y, Yi C, Xu M, Xu J. Sensing performance and mechanism of carbon dots encapsulated into metal-organic frameworks. Mikrochim Acta 2022; 189:379. [PMID: 36087187 DOI: 10.1007/s00604-022-05481-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/27/2022] [Indexed: 01/28/2023]
Abstract
Metal-organic frameworks (MOFs) can be combined with nanomaterials and the combined composites have excellent optical properties. Carbon dots (CDs) with tiny particle size, non-toxic and rich surface functional groups are novel fluorescent materials. Carbon dots@metal-organic frameworks (CDs@MOFs) are synthesized by encapsulating CDs into MOFs. CDs@MOFs are promising composites for the preparation of a new generation of fluorescence sensors, which combine the hybrid properties of MOFs and the special optical properties of CDs. Urged as such, we are encouraged to categorize according to the sensing mechanisms. These include fluorescence resonance energy transfer (FRET), aggregation-caused quenching (ACQ), static quenching, dynamic quenching, photo-induced electron transfer (PET), inner filter effect (IFE) and so on. Based on the above mechanisms, CDs@MOFs can specifically interact with target analytes to generate fluorescence quenching. This review covers the research progress of CDs@MOFs in recent five years (with 103 refs), synthetic design of CDs@MOFs and introduces the sensing mechanism. The current challenges and future research directions are discussed briefly. The sensing mechanism and applications of CDs@MOFs.
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Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China.
| | - Xiule Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Yao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Chunhui Yi
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Ming Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemistry, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Jinxia Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemistry, Tiangong University, Tianjin, 300387, People's Republic of China
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4
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One-pot synthesis of concentration and excitation dual-dependency truly full-color photoluminescence carbon dots. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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The “ON-OFF” Microwave Reaction Time Technique: A Novel Strategy to Impact the Fluorescence of Multi-Color Emissive Carbon Dots. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Zhu X, Yan X, Yang S, Wang Y, Wang S, Tian Y. DNA-Mediated Assembly of Carbon Nanomaterials. Chempluschem 2022; 87:e202200089. [PMID: 35589623 DOI: 10.1002/cplu.202200089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/26/2022] [Indexed: 02/18/2024]
Abstract
Carbon nanomaterials (CNMs) have attracted extensive attentions on account of their superior electrical, mechanical, optical, and biological properties. However, the dimensional limit and irregular arrangement have hampered their further application. It is necessary to find an easy, efficient and controllable way to assemble CNMs into well-ordered array. DNA nanotechnology, owning to the advantages of precise programmability, highly structural predictability and spatial addressability, has been widely applied in the assembly of CNMs. Summarizing the progress and achievements in this field will be of great value to related studies. Herein, based on the different dimensions of CNMs containing 0-dimensional (0D) carbon dots (CDs), fullerenes, 1-dimensional (1D) carbon nanotubes (CNTs) and 2-dimensional (2D) graphene, we introduced the conjugation strategies between DNA and CNMs, their different assembly methods and their applications. In addition, we also discuss the existing challenges and future opportunities in the field.
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Affiliation(s)
- Xurong Zhu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Shenzhen Research Institute, Nanjing University, 518000, Shenzhen, P. R. China
| | - Xuehui Yan
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Shenzhen Research Institute, Nanjing University, 518000, Shenzhen, P. R. China
| | - Sichang Yang
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Shenzhen Research Institute, Nanjing University, 518000, Shenzhen, P. R. China
| | - Yong Wang
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Shenzhen Research Institute, Nanjing University, 518000, Shenzhen, P. R. China
| | - Shuang Wang
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, 518055, Shenzhen, P. R. China
| | - Ye Tian
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210023, Nanjing, P. R. China
- Shenzhen Research Institute, Nanjing University, 518000, Shenzhen, P. R. China
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7
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Durrani S, Zhang J, Yang Z, Pang AP, Zeng J, Sayed SM, Khan A, Zhang Y, Wu FG, Lin F. Plant-derived Ca, N, S-Doped carbon dots for fast universal cell imaging and intracellular Congo red detection. Anal Chim Acta 2022; 1202:339672. [DOI: 10.1016/j.aca.2022.339672] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/16/2022] [Accepted: 03/01/2022] [Indexed: 12/17/2022]
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8
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Cai KB, Huang HY, Hsieh ML, Chen PW, Chiang SE, Chang SH, Shen JL, Liu WR, Yuan CT. Two-Dimensional Self-Assembly of Boric Acid-Functionalized Graphene Quantum Dots: Tunable and Superior Optical Properties for Efficient Eco-Friendly Luminescent Solar Concentrators. ACS NANO 2022; 16:3994-4003. [PMID: 35234037 DOI: 10.1021/acsnano.1c09582] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Carbon-based nanomaterials hold promise for eco-friendly alternatives to heavy-metal-containing quantum dots (QDs) in optoelectronic applications. Here, boric acid-functionalized graphene quantum dots (B-GQDs) were prepared using bottom-up molecular fusion based on nitrated pyrenes and boric acid. Such B-GQDs with crystalline graphitic structures and hydrogen-bonding functionalities would be suitable model systems for unraveling the photoluminescence (PL) mechanism, while serving as versatile building blocks for supramolecular self-assembly. Unlike conventional GQDs with multiple emissive states, the B-GQDs exhibited excitation-wavelength-independent, vibronic-coupled excitonic emission. Interestingly, their PL spectra can be tuned without largely sacrificing the quantum yield (QY) due to two-dimensional self-assembly. In addition, such B-GQDs in a polystyrene matrix possessed an ultrahigh QY (∼90%) and large exciton binding energy (∼300 meV). Benefiting from broadband absorption, ultrahigh QY, and long-wavelength emission, efficient laminated luminescent solar concentrators (100 × 100 × 6.3 mm3) were fabricated, yielding a high power conversion efficiency (1.4%).
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Affiliation(s)
- Kun-Bin Cai
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Hsiu-Ying Huang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Meng-Lin Hsieh
- Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Po-Wen Chen
- Physics Division, Institute of Nuclear Energy Research, Taoyuan 325207, Taiwan
| | - Shou-En Chiang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Sheng Hsiung Chang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Ji-Lin Shen
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Wei-Ren Liu
- Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chi-Tsu Yuan
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
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9
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Gao Y, Yu H, Tian J, Xiao B. Nonenzymatic DNA-Based Fluorescence Biosensor Combining Carbon Dots and Graphene Oxide with Target-Induced DNA Strand Displacement for microRNA Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2608. [PMID: 34685049 PMCID: PMC8537593 DOI: 10.3390/nano11102608] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/24/2021] [Accepted: 09/30/2021] [Indexed: 12/18/2022]
Abstract
Based on a fluorescence "on-off-on" strategy, we fabricated a simple and highly sensitive DNA-based fluorescence biosensor for the detection of micro (mi)RNA from carbon dots (CDs) and graphene oxide (GO) without complicated and time-consuming operations. CDs were successfully synthesized and conjugated to the end of a single-stranded fuel DNA that was adsorbed onto the surface of GO through π-π stacking, resulting in fluorescence quenching. In the presence of the target miRNA let-7a, the fuel DNA was desorbed from the GO surface, and fluorescence was restored through two successive toehold-mediated strand displacement reactions on double-stranded DNA-modified gold nanoparticles. The target miRNA let-7a was recycled, leading to signal amplification. The concentration of let-7a was proportional to the degree of fluorescence recovery. Under optimal conditions, there was a good linear relationship between the relative fluorescence intensity and let-7a concentration in the range of 0.01-1 nM, with a detection limit of 7.8 pM. With its advantages of signal amplification and high biocompatibility, this fluorescence sensing strategy can be applied to the detection of a variety of target miRNAs and can guide the design of novel biosensors with improved properties.
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Affiliation(s)
- Yuanyuan Gao
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Y.G.); (H.Y.)
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Material Science and Engineering, Hainan University, Haikou 570228, China;
| | - Hong Yu
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Y.G.); (H.Y.)
| | - Jingjing Tian
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Material Science and Engineering, Hainan University, Haikou 570228, China;
- Key Laboratory of Emergency and Trauma of Ministry of Education & Research Unit of Island Emergency Medicine of Chinese Academy of Medical Sciences, Hainan Medical University, Haikou 571199, China
| | - Botao Xiao
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Y.G.); (H.Y.)
- Joint International Research Laboratory of Synthetic Biology and Medicine, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
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10
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Zhang D, Chao D, Yu C, Zhu Q, Zhou S, Tian L, Zhou L. One-Step Green Solvothermal Synthesis of Full-Color Carbon Quantum Dots Based on a Doping Strategy. J Phys Chem Lett 2021; 12:8939-8946. [PMID: 34499514 DOI: 10.1021/acs.jpclett.1c02475] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Proposing a simple strategy for developing full-color carbon quantum dots (CQDs) and exploring how the luminescence can be tuned and improved is attractive and encouraging. Herein, blue, green, yellow-green, and orange-red CQDs doped with heteroatoms were synthesized in one pot and separated by column chromatography, with emission peaks of 435 nm, 495 nm [photoluminescence quantum yield (PLQY) of 88.9%], 525 nm, and 595 nm (full width at half-maximum of 31 nm), respectively. The abundant C-O/C-O-C electron donor groups greatly improve the PLQY of green CQDs, and the expended effective conjugated domains (particle size, doped chlorine, and conjugated nitrogen) of CQDs boost the red-shifts of emission spectra. Energy transfer (ET) in a concentrated mixed solution of CQDs was discovered, and possible ET mechanisms are proposed. Furthermore, a high-efficiency white light-emitting diode with Commission Internationale de L'Eclairage coordinates of (0.361, 0.369), a correlated color temperature of 4534 K, and a high color rendering index of 90.8 was fabricated.
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Affiliation(s)
- Danyang Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - Daiyong Chao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Chunyu Yu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Qi Zhu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Shihong Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Long Tian
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230027, People's Republic of China
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11
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Fathi P, Moitra P, McDonald MM, Esch MB, Pan D. Near-infrared emitting dual-stimuli-responsive carbon dots from endogenous bile pigments. NANOSCALE 2021; 13:13487-13496. [PMID: 34477753 DOI: 10.1039/d1nr01295a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Carbon dots are biocompatible nanoparticles suitable for a variety of biomedical applications. Careful selection of carbon dot precursors and surface modification techniques has allowed for the development of carbon dots with strong near-infrared fluorescence emission. However, carbon dots that provide strong fluorescence contrast would prove even more useful if they were also responsive to stimuli. In this work, endogenous bile pigments bilirubin (BR) and biliverdin (BV) were used for the first time to synthesize stimuli-responsive carbon dots (BR-CDots and BV-CDots respectively). The precursor choice lends these carbon dots spectroscopic characteristics that are enzyme-responsive and pH-responsive without the need for surface modifications post-synthesis. Both BV- and BR-CDots are water-dispersible and provide fluorescence contrast, while retaining the stimuli-responsive behaviors intrinsic to their precursors. Nanoparticle Tracking Analysis revealed that the hydrodynamic size of the BR-CDots and BV-CDots decreased with exposure to bilirubin oxidase and biliverdin reductase, respectively, indicating potential enzyme-responsive degradation of the carbon dots. Fluorescence spectroscopic data demonstrate that both BR-CDots and BV-CDots exhibit changes in their fluorescence spectra in response to changes in pH, indicating that these carbon dots have potential applications in pH sensing. In addition, BR-CDots are biocompatible and provide near-infrared fluorescence emission when excited with light at wavelengths of 600 nm or higher. This work demonstrates the use of rationally selected carbon sources for obtaining near-infrared fluorescence and stimuli-responsive behavior in carbon dots that also provide strong fluorescence contrast.
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Affiliation(s)
- Parinaz Fathi
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois, 61801, USA
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12
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Rasooll MM, Zarei M, Zolfigol MA, Sepehrmansourie H, Omidi A, Hasani M, Gu Y. Novel nano-architectured carbon quantum dots (CQDs) with phosphorous acid tags as an efficient catalyst for the synthesis of multisubstituted 4 H-pyran with indole moieties under mild conditions. RSC Adv 2021; 11:25995-26007. [PMID: 35479474 PMCID: PMC9037214 DOI: 10.1039/d1ra02515e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/28/2021] [Indexed: 01/23/2023] Open
Abstract
In this work, a new nano-structured catalyst with phosphorus acid moieties, synthesized by the reaction of carbon quantum dots (CQDs) and phosphorus acid under refluxing EtOH. The structure and morphology of CQDs–N(CH2PO3H2)2 were fully characterized using various techniques such as Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, thermogravimetric (TG) analysis, fluorescence and X-ray diffraction (XRD) measurements. The new CQDs–N(CH2PO3H2)2 catalyst was successfully used for the synthesis of 2-amino-6-(2-methyl-1H-indol-3-yl)-4-phenyl-4H-pyran-3,5-dicarbonitriles by the one-pot reaction of various aromatic aldehydes, 3-(1H-indol-3-yl)-3-oxopropanenitrile derivatives and malononitrile in refluxing EtOH and/or ultrasonic irradiation conditions. A new nano-structured catalyst with phosphorus acid moieties, synthesized by the reaction of carbon quantum dots (CQDs) and phosphorus acid under refluxing EtOH.![]()
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Affiliation(s)
- Milad Mohammadi Rasooll
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Mahmoud Zarei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Hassan Sepehrmansourie
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Afsaneh Omidi
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Masoumeh Hasani
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Yanlong Gu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology 1037 Luoyu Road, Hongshan District Wuhan 430074 China
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13
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Kompany-Zareh M, Bagheri S. Perception on aggregation induced multicolor emission and emission centers in carbon nanodots using successive dilution, anion exchange chromatography, and multi-way statistics. Sci Rep 2021; 11:13996. [PMID: 34234191 PMCID: PMC8263574 DOI: 10.1038/s41598-021-93212-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/04/2021] [Indexed: 11/22/2022] Open
Abstract
Exploration in the way of understanding the optical behavior and structure of carbon nanodots has been increased due to their vast application. Their emission dependency on excitation wavelengths is the more prevalent and controversial subject. In this report we considered the optical structure of hydrothermally synthesized carbon nanodots using citric acid and 2,3-diaminopyridine as precursors. The presence of different emission centers experimented through anion exchange chromatography which resulted in fractions with more unique optical structures. The quantum confinement effect and energy exchange between different types of carbon nanodots, due to aggregation in higher concentration levels, was studied applying a stepwise dilution experiment. Analysis of the experimental data was done through the parallel factor analysis and the trajectory pattern recognition which resolved more about optical interactions and the presence of different emission centers in different particles. Results from infrared spectroscopy confirmed the dominating density of carboxyl functional groups on the nanodots with negative surface charges and higher influence of amine groups on dots with positive surface charges.
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Affiliation(s)
- Mohsen Kompany-Zareh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, 45137-66731, Zanjan, Iran. .,Trace Analysis Research Centre, Department of Chemistry, Dalhousie University, P.O. Box 15000, Halifax, NS, B3H 4R2, Canada.
| | - Saeed Bagheri
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, 45137-66731, Zanjan, Iran
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14
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Takada T, Nishida K, Honda Y, Nakano A, Nakamura M, Fan S, Kawai K, Fujitsuka M, Yamana K. Stacked Thiazole Orange Dyes in DNA Capable of Switching Emissive Behavior in Response to Structural Transitions. Chembiochem 2021; 22:2729-2735. [PMID: 34191388 DOI: 10.1002/cbic.202100309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Indexed: 12/20/2022]
Abstract
Functional nucleic acids with the capability of generating fluorescence in response to hybridization events, microenvironment or structural changes are valuable as structural probes and chemical sensors. We now demonstrate the enzyme-assisted preparation of nucleic acids possessing multiple thiazole orange (TO) dyes and their fluorescent behavior, that show a spectral change from the typical monomer emission to the excimer-type red-shifted emission. We found that the fluorescent response and emission wavelength of the TO dyes were dependent on both the state of the DNA structure (single- or double-stranded DNA) and the arrangement of the TO dyes. We showed that the fluorescent behavior of the TO dyes can be applied for the detection of RNA molecules, suggesting that our approach for preparing the fluorescent nucleic acids functionalized with multiple TO dyes could be useful to design a fluorescence bioimaging and detection technique of biomolecules.
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Affiliation(s)
- Tadao Takada
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Koma Nishida
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Yurika Honda
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Aoi Nakano
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Mitsunobu Nakamura
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Shuya Fan
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Kiyohiko Kawai
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Kazushige Yamana
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
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15
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Ihde MH, Steelman AM, Bonizzoni M. Fluorescent Probes for the Supramolecular Interactions responsible for Binding of Polycyclic Aromatic Hydrocarbons to Hyperbranched Polyelectrolytes in Aqueous Media. Isr J Chem 2021. [DOI: 10.1002/ijch.202000097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michael H. Ihde
- Department of Chemistry and Biochemistry The University of Alabama P.O. Box 870336 Tuscaloosa, AL 35487 United States
| | - Ashley M. Steelman
- Department of Chemistry and Biochemistry The University of Alabama P.O. Box 870336 Tuscaloosa, AL 35487 United States
- Department of Chemistry University of Kentucky Lexington KY 40506 United States
| | - Marco Bonizzoni
- Department of Chemistry and Biochemistry The University of Alabama P.O. Box 870336 Tuscaloosa, AL 35487 United States
- The Alabama Water Institute P.O. Box 870206 Tuscaloosa, AL 35487 United States
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16
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Chen CY, Tan YZ, Hsieh PH, Wang CM, Shibata H, Maejima K, Wang TY, Hiruta Y, Citterio D, Liao WS. Metal-Free Colorimetric Detection of Pyrophosphate Ions by Inhibitive Nanozymatic Carbon Dots. ACS Sens 2020; 5:1314-1324. [PMID: 32323526 DOI: 10.1021/acssensors.9b02486] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The pyrophosphate ion (P2O74-, PPi) plays a critical role in various biological processes and acts as an essential indicator for physiological mechanism investigations and disease control monitoring. However, most of the currently available approaches for PPi species detection for practical usage still lack appropriate indicator generation, straightforward detection requirements, and operation convenience. In this study, a highly sensitive and selective PPi detection approach via the use of nanozymatic carbon dots (CDs) is introduced. This strategy eliminates the common need for metal ions in the detection process, where a direct indicator-PPi interaction is adopted to provide straightforward signal reports, and importantly, through a green indicator preparation. The preparation of this nanozymatic CDs' indicator utilizes an aqueous solution refluxing, employing galactose and histidine as the precursor materials. The mild conditions of the solution refluxing produce fluorescent CDs exhibiting peroxidase-mimic properties, which can catalyze the o-phenylenediamine oxidation under the presence of H2O2. The introduction of PPi species, interestingly, inhibits this process very efficiently, the extent of which can be colorimetrically monitored by the generated yellow product 2,3-diaminophenazine. Spectroscopic results point to CD surface functional groups' selective binding toward PPi species, which severely interferes with the electron transfer process in the enzymatic catalysis. Relying on this CD peroxidase-mimetic property inhibition, sensitive and selective recognition of PPi reaches a detection limit of 4.29 nM, enabling practical usage in complex matrixes. Owing to the superior compatibility and high stability of nanozymatic CDs, they can also be inkjet-printed on paper-based devices to create a portable and convenient platform for PPi detection. Both the solution and the paper-device-based selective recognitions confirm this unique and robust metal-free inhibitive PPi detection, which is supported by a convenient green preparation of nanozymatic CDs.
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Affiliation(s)
- Chong-You Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 30011, Taiwan
| | - Ying Zi Tan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ping-Hsuan Hsieh
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chang-Ming Wang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Hiroyuki Shibata
- Department of Applied Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Kento Maejima
- Department of Applied Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Ting-Yi Wang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yuki Hiruta
- Department of Applied Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Daniel Citterio
- Department of Applied Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Wei-Ssu Liao
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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17
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Noh GJ, Oh KT, Youn YS, Lee ES. Cyclic RGD-Conjugated Hyaluronate Dot Bearing Cleavable Doxorubicin for Multivalent Tumor Targeting. Biomacromolecules 2020; 21:2525-2535. [PMID: 32384236 DOI: 10.1021/acs.biomac.0c00554] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, we developed an extremely small-sized water-soluble hyaluronate dot (dHA) conjugated with cyclic RGD (cRGD) and cleavable doxorubicin (DOX, as a model antitumor drug), named cRGD@dHA-c-DOX. This dot with HA moieties (as specific ligands to tumor CD44 receptors) and cRGD moieties (as specific ligands to tumor integrin αvβ3) was designed to enable multivalent tumor targeting. In particular, the imine bonds, linking the DOX and dHA, can exhibit cleavage performance at endosomal pH, resulting in pH-triggered DOX release from cRGD@dHA-c-DOX. We demonstrated that cRGD@dHA-c-DOX resulted in highly improved cellular uptake and cell death in MDA-MB-231 tumor cells (CD44+, integrin αvβ3+) compared to those in Huh7 tumor cells (CD44-, integrin αvβ3-). In vivo studies using MDA-MB-231 tumor-bearing mice revealed that cRGD@dHA-c-DOX enhanced the tumor inhibition efficacy. These results suggest that cRGD@dHA-c-DOX can be utilized as a promising multivalent tumor-targeting drug carrier for highly efficient tumor treatment.
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Affiliation(s)
- Gwang Jin Noh
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Yu Seok Youn
- School of Pharmacy, SungKyunKwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Eun Seong Lee
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do 14662, Republic of Korea.,Department of Biomedical Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do 14662, Republic of Korea
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18
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Röthlisberger P, Levi-Acobas F, Leumann CJ, Hollenstein M. Enzymatic synthesis of biphenyl-DNA oligonucleotides. Bioorg Med Chem 2020; 28:115487. [PMID: 32284226 DOI: 10.1016/j.bmc.2020.115487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/27/2020] [Accepted: 04/01/2020] [Indexed: 12/25/2022]
Abstract
The incorporation of nucleotides equipped with C-glycosidic aromatic nucleobases into DNA and RNA is an alluring strategy for a number of practical applications including fluorescent labelling of oligonucleotides, expansion of the genetic alphabet for the generation of aptamers and semi-synthetic organisms, or the modulation of excess electron transfer within DNA. However, the generation of C-nucleoside containing oligonucleotides relies mainly on solid-phase synthesis which is quite labor intensive and restricted to short sequences. Here, we explore the possibility of constructing biphenyl-modified DNA sequences using enzymatic synthesis. The presence of multiple biphenyl-units or biphenyl residues modified with electron donors and acceptors permits the incorporation of a single dBphMP nucleotide. Moreover, templates with multiple abasic sites enable the incorporation of up to two dBphMP nucleotides, while TdT-mediated tailing reactions produce single-stranded DNA oligonucleotides with four biphenyl residues appended at the 3'-end.
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Affiliation(s)
- Pascal Röthlisberger
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR 3523, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France; Institut Pasteur, Department of Genome and Genetics, Paris, France
| | - Fabienne Levi-Acobas
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR 3523, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France; Institut Pasteur, Department of Genome and Genetics, Paris, France
| | - Christian J Leumann
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Marcel Hollenstein
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR 3523, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France; Institut Pasteur, Department of Genome and Genetics, Paris, France.
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19
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Wang BL, Jiang C. DNA G-Quadruplexes as a Template To Direct Cyanine Dyes To Form H-Aggregates and Application of the Self-Assembly Entity as a New G-Quadruplexes Ligands Screening Platform. Anal Chem 2019; 91:1541-1547. [DOI: 10.1021/acs.analchem.8b04677] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Bo-Lin Wang
- College of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Chuang Jiang
- College of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
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20
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Du S, Wang Y. Near-white photoluminescence in paramagnetic Gd 6O 5F 8 nanoparticles. CrystEngComm 2019. [DOI: 10.1039/c9ce01067j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
White light emission has been achieved by near full band excitation from 10.7 nm sized pure Gd6O5F8 nanoparticles.
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Affiliation(s)
- Shanshan Du
- National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of the National Development and Reform Commission
- Lanzhou University
- Lanzhou
- China
- Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education
| | - Yuhua Wang
- National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of the National Development and Reform Commission
- Lanzhou University
- Lanzhou
- China
- Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education
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21
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Li Y, Liu Z, Bai L, Liu Y. Nitrogen-doped carbon dots derived from electrospun carbon nanofibers for Cu(ii) ion sensing. NEW J CHEM 2019. [DOI: 10.1039/c8nj06069j] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrogen-doped carbon dots were synthesized via the chemical breakdown of electrospun polyacrylonitrile-based carbon nanofibers and employed as a fluorescent sensing platform.
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Affiliation(s)
- Yang Li
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China
- Taiyuan 030051
- China
| | - Zhicheng Liu
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China
- Taiyuan 030051
- China
- Department of Mechanical Engineering, National University of Singapore
- Singapore 117574
| | - Lu Bai
- School of Chemical Engineering and Technology, North University of China
- Taiyuan 030051
- China
| | - Yaqing Liu
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China
- Taiyuan 030051
- China
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22
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Yu Y, Li C, Chen C, Huang H, Liang C, Lou Y, Chen XB, Shi Z, Feng S. Saccharomyces-derived carbon dots for biosensing pH and vitamin B 12. Talanta 2018; 195:117-126. [PMID: 30625521 DOI: 10.1016/j.talanta.2018.11.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/31/2018] [Accepted: 11/04/2018] [Indexed: 12/16/2022]
Abstract
Photoluminescence(PL) nano-biosensors that can be used for accurately and reliably monitoring pH and vitamin hold a great promise in biology and medicine. Herein, a high quantum yield of 16% saccharomyces-derived N-doped carbon dots (s-N-CDs) was synthesized through a simple and one-pot microwave-assisted hydrothermal approach. The produced s-N-CDs are an excellent multi-functional biosensor for the applications of pH sensing and vitamin probing. Fluorescence intensity and fluorescence lifetime dramatically increases with pH decreasing from 14 to 2. Moreover, the fluorescence intensity presents highly reversible abilty from 13 to 2 without any profound attenuation after ten consecutive circles. More importantly, the CDs prepared herein are sound option for assaying cobalamin (VB 12) based fluorescence resonance energy transfer (FRET) with a superior low detection limit of 2.19 μM.
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Affiliation(s)
- Ying Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Chunguang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Cailing Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - He Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Chen Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yue Lou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, VIC 3053, Australia
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, People's Republic of China
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23
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Chen Y, Lian H, Wei Y, He X, Chen Y, Wang B, Zeng Q, Lin J. Concentration-induced multi-colored emissions in carbon dots: origination from triple fluorescent centers. NANOSCALE 2018; 10:6734-6743. [PMID: 29589857 DOI: 10.1039/c8nr00204e] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Color-tunable carbon dots have been synthesized via a one pot hydrothermal synthesis and re-dispersed in dimethylformamide solution after purification. Structural and optical property characterizations indicate that the concentration-dependent photoluminescent properties can be ascribed to the existence of multi-emissive centers in the carbon dots from core states, edge states and surface states. Therefore, a multi-center fluorescent mechanism for the carbon dots has been proposed according to the preservation effect and inductive effect of the solvent. The emission wavelength of the carbon dots with different concentrations can be tuned from 585 to 514 nm under the fixed excitation of 420 nm blue light, and a warm white light-emitting diode with a CIE color coordinate at (0.42, 0.35) is fabricated on a InGaN blue chip emitting 420 nm blue light.
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Affiliation(s)
- Yeqing Chen
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, P. R. China.
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24
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Chen Z, Zhao Z, Wang Z, Zhang Y, Sun X, Hou L, Yuan C. Foxtail millet-derived highly fluorescent multi-heteroatom doped carbon quantum dots towards fluorescent inks and smart nanosensors for selective ion detection. NEW J CHEM 2018. [DOI: 10.1039/c8nj01072b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Foxtail millet-derived highly fluorescent nitrogen/sulfur/phosphrous (N/S/P) co-doped CQDs were efficiently fabricated via a green strategy, and were found to hold potential towards fluorescent inks and smart detection.
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Affiliation(s)
- Zhiyi Chen
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Zhiwei Zhao
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Zhengluo Wang
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Yanru Zhang
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Xuan Sun
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Linrui Hou
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
- School of Material Science and Engineering
| | - Changzhou Yuan
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
- School of Material Science and Engineering
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25
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Choi EJ, Lee JM, Youn YS, Na K, Lee ES. Hyaluronate dots for highly efficient photodynamic therapy. Carbohydr Polym 2017; 181:10-18. [PMID: 29253924 DOI: 10.1016/j.carbpol.2017.10.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/07/2017] [Accepted: 10/12/2017] [Indexed: 10/18/2022]
Abstract
Nanoscale particles, such as quantum dots and carbon dots, are important materials for use in sensing and treating irregular biological events, but their versatility for biomedical applications are usually limited by their undesirable properties such toxicity and non-degradability. Here, we report biofunctional hyaluronic acid (HA) dots containing biodegradable/biocompatible HA. HA dots were prepared by conjugating multiple HA molecules to C60 (used as a base dot) without any hydrothermal treatment. The hydroxyl groups of HA completely linked to all π-π carbon bonds in C60. The chemically synthesized HA dots (Mn=16.1kDa) were 2nm in diameter, soluble in aqueous solution, and possessed multiple functional (carboxyl) groups. The HA dots were biofunctional, enabling highly efficient binding to CD44 receptors overexpressed on in vitro/in vivo tumors. With light illumination, we demonstrated that the HA dots bearing a photosensitizing model drug (chlorin e6: Ce6) resulted in a significant enhancement in in vitro/in vivo tumor cell ablation. We believe that this approach offers a new strategy to create biopolymer dots.
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Affiliation(s)
- Eun Jung Choi
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Jae Min Lee
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Yu Seok Youn
- School of Pharmacy, SungKyunKwan University, 2066 Seobu-ro, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Kun Na
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Eun Seong Lee
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea.
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