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Milenković M, Ciasca G, Bonasera A, Scopelliti M, Marković O, Verbić T, Marković BT, Jovanović S. Blue-light-driven photoactivity of L-cysteine-modified graphene quantum dots and their antibacterial effects. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 250:112818. [PMID: 38041931 DOI: 10.1016/j.jphotobiol.2023.112818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/09/2023] [Accepted: 11/21/2023] [Indexed: 12/04/2023]
Abstract
The widespread abuse of traditional antibiotics has led to a global rise in antibiotic-resistant bacteria, which give in return unprecedented health risks. Therefore, there is a large and urgent need for the development of new, smart antibacterial agents able to efficiently kill or inhibit bacterial growth. In this study, we investigated the antibacterial activity of S, N-doped Graphene Quantum Dots (GQDs) as a light-triggered antibacterial agent. Gamma irradiation was employed as a tool to achieve one-step modification of GQDs in the presence of L-cysteine amino acid as a source of heteroatoms. X-ray Photoelectron Spectroscopy (XPS), nuclear magnetic resonance (NMR), and zeta potential measurements provided the necessary data to clarify the structure of modified dots and verify the introduction of both S- and N-atoms in GQDs structure, but also severe changes in the aromatic, sp2 domains. Namely, γ-irradiation caused a bonding of S atoms in 1.14 at.% mainly as thiol groups, and N in 1.81 at.% as amino groups, but sp2 contribution in GQD structure was lowered from 63.00 to 4.86 at.%, as measured in dots irradiated at a dose of 200 kGy. Fluorescence quenching measurements showed that L-cysteine-modified dots are able to bind to human serum albumin. The antibacterial activity of GQDs combined with 1 and 6 h of blue light (470 nm) irradiation was tested against 8 bacterial strains. GQD-cys-25 sample provided the best results, with minimum inhibitory concentration (MIC) as low as 125 μg/mL against S. aureus, E. faecalis, and E. coli after only 1 h of blue light exposure.
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Affiliation(s)
- Mila Milenković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia.
| | - Gabriele Ciasca
- Istituti Biologici - Istituto di Fisica, Università Cattolica del Sacro Cuore, largo Francesco Vito 1, 00168 Roma, Italy
| | - Aurelio Bonasera
- Department of Physics and Chemistry, Emilio Segrè, University of Palermo, viale delle Scienze 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, viale delle Scienze 17, 90128 Palermo, Italy
| | - Michelangelo Scopelliti
- Department of Physics and Chemistry, Emilio Segrè, University of Palermo, viale delle Scienze 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, viale delle Scienze 17, 90128 Palermo, Italy; Laboratorio Superfici, Film Sottili e Dispositivi, ATeN Center, University of Palermo, viale delle Scienze 18/A, 90128 Palermo, Italy
| | - Olivera Marković
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia
| | - Tatjana Verbić
- University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Biljana Todorović Marković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Svetlana Jovanović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
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2
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Aziz T, Imran M, Haider A, Shahzadi A, Ul Abidin MZ, Ul-Hamid A, Nabgan W, Algaradah MM, Fouda AM, Ikram M. Catalytic performance and antibacterial behaviour with molecular docking analysis of silver and polyacrylic acid doped graphene quantum dots. RSC Adv 2023; 13:28008-28020. [PMID: 37746345 PMCID: PMC10517100 DOI: 10.1039/d3ra04741e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/16/2023] [Indexed: 09/26/2023] Open
Abstract
In this research, a fixed concentration (3 wt%) of Ag/PAA and PAA/Ag doped graphene quantum dots (GQDs) were synthesized using the co-precipitation technique. A variety of characterization techniques were employed to synthesize samples to investigate their optical, morphological, structural, and compositional analyses, antimicrobial efficacy, and dye degradation potential with molecular docking analysis. GQDs have high solubility, narrow band gaps, and are suitable for electron acceptors and donors but show less adsorption and catalytic behavior. Incorporating polyacrylic acid (PAA) into GQDs increases the catalytic and antibacterial activities due to the carboxylic group (-COOH). Furthermore, introducing silver (Ag) increased the degradation of dye and microbes as it had a high surface-to-volume ratio. In addition, molecular docking studies were used to decipher the mechanism underlying the bactericidal action of silver and polyacrylic acid-doped graphene quantum dots and revealed inhibition of β-lactamase and DNA gyrase.
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Affiliation(s)
- Tahreem Aziz
- Department of Chemistry, Government College University, Faisalabad Pakpattan Road Sahiwal Punjab 57000 Pakistan
| | - Muhammad Imran
- Department of Chemistry, Government College University, Faisalabad Pakpattan Road Sahiwal Punjab 57000 Pakistan
| | - Ali Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture Multan 66000 Punjab Pakistan
| | - Anum Shahzadi
- Faculty of Pharmacy, The University of Lahore Lahore 54000 Pakistan
| | - Muhammad Zain Ul Abidin
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Walid Nabgan
- Departament d'Enginyeria Química, Universitat Rovira i Virgili Av Països Catalans 26 43007 Tarragona Spain
| | | | - Ahmed M Fouda
- Chemistry Department, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
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3
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Hu X, Xu Y, Liu S, Gudda FO, Ling W, Qin C, Gao Y. Graphene Quantum Dots Nonmonotonically Influence the Horizontal Transfer of Extracellular Antibiotic Resistance Genes via Bacterial Transformation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301177. [PMID: 37144438 DOI: 10.1002/smll.202301177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/10/2023] [Indexed: 05/06/2023]
Abstract
Graphene quantum dots (GQDs) coexist with antibiotic resistance genes (ARGs) in the environment. Whether GQDs influence ARG spread needs investigation, since the resulting development of multidrug-resistant pathogens would threaten human health. This study investigates the effect of GQDs on the horizontal transfer of extracellular ARGs (i.e., transformation, a pivotal way that ARGs spread) mediated by plasmids into competent Escherichia coli cells. GQDs enhance ARG transfer at lower concentrations, which are close to their environmental residual concentrations. However, with further increases in concentration (closer to working concentrations needed for wastewater remediation), the effects of enhancement weaken or even become inhibitory. At lower concentrations, GQDs promote the gene expression related to pore-forming outer membrane proteins and the generation of intracellular reactive oxygen species, thus inducing pore formation and enhancing membrane permeability. GQDs may also act as carriers to transport ARGs into cells. These factors result in enhanced ARG transfer. At higher concentrations, GQD aggregation occurs, and aggregates attach to the cell surface, reducing the effective contact area of recipients for external plasmids. GQDs also form large agglomerates with plasmids and thus hindering ARG entrance. This study could promote the understanding of the GQD-caused ecological risks and benefit their safe application.
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Affiliation(s)
- Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanxing Xu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Si Liu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Fredrick Owino Gudda
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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4
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Kalluri A, Dharmadhikari B, Debnath D, Patra P, Kumar CV. Advances in Structural Modifications and Properties of Graphene Quantum Dots for Biomedical Applications. ACS OMEGA 2023; 8:21358-21376. [PMID: 37360447 PMCID: PMC10286289 DOI: 10.1021/acsomega.2c08183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 05/19/2023] [Indexed: 06/28/2023]
Abstract
Graphene quantum dots (GQDs) are carbon-based, zero-dimensional nanomaterials and unique due to their astonishing optical, electronic, chemical, and biological properties. Chemical, photochemical, and biochemical properties of GQDs are intensely being explored for bioimaging, biosensing, and drug delivery. The synthesis of GQDs by top-down and bottom-up approaches, their chemical functionalization, bandgap engineering, and biomedical applications are reviewed here. Current challenges and future perspectives of GQDs are also presented.
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Affiliation(s)
- Ankarao Kalluri
- Department
of Material Science, Department of Chemistry, and Department of Molecular and Cell
Biology, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Bhushan Dharmadhikari
- Department
of Electrical and Computer Engineering and Technology, Minnesota State University, Mankato, Minnesota 56001, USA
| | - Debika Debnath
- Department of Biomedical Engineering and Department of
Mechanical Engineering, University of Bridgeport, Bridgeport, Connecticut 06604, USA
| | - Prabir Patra
- Department of Biomedical Engineering and Department of
Mechanical Engineering, University of Bridgeport, Bridgeport, Connecticut 06604, USA
| | - Challa Vijaya Kumar
- Department
of Material Science, Department of Chemistry, and Department of Molecular and Cell
Biology, University of Connecticut, Storrs, Connecticut 06269, USA
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5
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Hindi SS, Sabir JSM, Dawoud UM, Ismail IM, Asiry KA, Mirdad ZM, Abo-Elyousr KA, Shiboob MH, Gabal MA, Albureikan MOI, Alanazi RA, Ibrahim OHM. Nanocellulose-Based Passivated-Carbon Quantum Dots (P-CQDs) for Antimicrobial Applications: A Practical Review. Polymers (Basel) 2023; 15:2660. [PMID: 37376306 DOI: 10.3390/polym15122660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/08/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
Passivated-carbon quantum dots (P-CQDs) have been attracting great interest as an antimicrobial therapy tool due to their bright fluorescence, lack of toxicity, eco-friendly nature, simple synthetic schemes, and possession of photocatalytic functions comparable to those present in traditional nanometric semiconductors. Besides synthetic precursors, CQDs can be synthesized from a plethora of natural resources including microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC). Converting MCC into NCC is performed chemically via the top-down route, while synthesizing CODs from NCC can be performed via the bottom-up route. Due to the good surface charge status with the NCC precursor, we focused in this review on synthesizing CQDs from nanocelluloses (MCC and NCC) since they could become a potential source for fabricating carbon quantum dots that are affected by pyrolysis temperature. There are several P-CQDs synthesized with a wide spectrum of featured properties, namely functionalized carbon quantum dots (F-CQDs) and passivated carbon quantum dots (P-CQDs). There are two different important P-CQDs, namely 2,2'-ethylenedioxy-bis-ethylamine (EDA-CQDs) and 3-ethoxypropylamine (EPA-CQDs), that have achieved desirable results in the antiviral therapy field. Since NoV is the most common dangerous cause of nonbacterial, acute gastroenteritis outbreaks worldwide, this review deals with NoV in detail. The surficial charge status (SCS) of the P-CQDs plays an important role in their interactions with NoVs. The EDA-CQDs were found to be more effective than EPA-CQDs in inhibiting the NoV binding. This difference may be attributed to their SCS as well as the virus surface. EDA-CQDs with surficial terminal amino (-NH2) groups are positively charged at physiological pH (-NH3+), whereas EPA-CQDs with surficial terminal methyl groups (-CH3) are not charged. Since the NoV particles are negatively charged, they are attracted to the positively charged EDA-CQDs, resulting in enhancing the P-CQDs concentration around the virus particles. The carbon nanotubes (CNTs) were found to be comparable to the P-CQDs in the non-specific binding with NoV capsid proteins, through complementary charges, π-π stacking, and/or hydrophobic interactions.
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Affiliation(s)
- Sherif S Hindi
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Jamal S M Sabir
- Department of Biological Sciences, Faculty of Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Uthman M Dawoud
- Department of Chemical and Materials Engineering, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Iqbal M Ismail
- Department of Chemistry, Faculty of Science, Center of Excellence in Environmental Studies, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Khalid A Asiry
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Zohair M Mirdad
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Kamal A Abo-Elyousr
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
- Plant Pathology Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - Mohamed H Shiboob
- Department of Environment, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Mohamed A Gabal
- Department of Chemistry, Faculty of Science, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Mona Othman I Albureikan
- Department of Biological Sciences, Faculty of Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Rakan A Alanazi
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Omer H M Ibrahim
- Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia
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6
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Lan S, Yang Z, Ren J, Cheng K, Shen S, Cao L, Wang D. Fluorescence Properties of EDTA Carbon-Dots and Its Application in Iron Ions Detection. RUSS J GEN CHEM+ 2023. [DOI: 10.1134/s1070363223020238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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7
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Pete AM, Ingle PU, Raut RW, Shende SS, Rai M, Minkina TM, Rajput VD, Kalinitchenko VP, Gade AK. Biogenic Synthesis of Fluorescent Carbon Dots (CDs) and Their Application in Bioimaging of Agricultural Crops. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:209. [PMID: 36616122 PMCID: PMC9824522 DOI: 10.3390/nano13010209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 05/11/2023]
Abstract
Fluorescent nanoparticles have a transformative potential for advanced sensors and devices for point-of-need diagnostics and bioimaging, bypassing the technical burden of meeting the assay performance requirements. Carbon dots (CDs) are rapidly emerging carbon-based nanomaterials. Regardless of their fate, they will find increasing applications. In this study, a simple approach for synthesizing CDs from fruit peels was developed. The CDs were fabricated from Annona squamosa (L.) peels using a carbonization technique through microwave-assisted hydrothermal digestion at temperatures around 200 °C. Synthesized CDs were detected using a UV transilluminator for the preliminary confirmation of the presence of fluorescence. UV-Vis spectrophotometry (absorbance at 505 nm) analysis, zeta potential measurement (-20.8 mV), nanoparticles tracking analysis (NTA) (average size: 15.4 nm and mode size: 9.26 nm), photoluminescence, and Fourier transform infrared (FT-IR) analysis were used to identify the capping functional groups on the CDs. The total quantum yield exhibited was 8.93%, and the field emission scanning electron microscopy (FESEM) showed the size range up to 40 nm. The germinating mung bean (Vigna radiata (L.)) seeds were incubated with biogenically synthesized CDs to check the absorption of CDs by them. The fluorescence was observed under a UV-transilluminator in the growing parts of seeds, indicating the absorption of CDs during the germination, development, and growth. These fluorescent CDs could be used as a bioimaging agent. This novel method of synthesizing CDs was found to be eco-friendly, rapid, and cost-effective.
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Affiliation(s)
- Akshay M. Pete
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
| | - Pramod U. Ingle
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
| | - Rajesh W. Raut
- Department of Botany, The Institute of Science, 15, Madame Cama Road, Mumbai 400032, Maharashtra, India
| | - Sudhir S. Shende
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Mahendra Rai
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
- Department of Microbiology, Nicolaus Copernicus University, 87-100 Torun, Poland
| | - Tatiana M. Minkina
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | | | - Aniket K. Gade
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
- Department of Biological Sciences and Biotechnology, Institute of Chemical Technology, Mumbai 400019, Maharashtra, India
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Kang H, Wang T, Liu W, Tian D. Folic Acid Modified Graphene Quantum Dots from Konjac Glucomannan for Cell Imaging and Targeted Drug Delivery. ChemistrySelect 2022. [DOI: 10.1002/slct.202203295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Huiting Kang
- School of Chemical and Environmental Engineering Hubei Minzu University Enshi 445000 People's Republic of China
| | - Tengfei Wang
- School of Chemical and Environmental Engineering Hubei Minzu University Enshi 445000 People's Republic of China
| | - Wei Liu
- School of Chemical and Environmental Engineering Hubei Minzu University Enshi 445000 People's Republic of China
| | - Dating Tian
- School of Chemical and Environmental Engineering Hubei Minzu University Enshi 445000 People's Republic of China
- Hubei Key Laboratory of Biological Resources Protection and Utilization Hubei Minzu University Enshi 445000 People's Republic of China
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9
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Gazizadeh M, Dehghan G, Soleymani J. A ratiometric fluorescent sensor for detection of metformin based on terbium-1,10-phenanthroline-nitrogen-doped-graphene quantum dots. RSC Adv 2022; 12:22255-22265. [PMID: 36043095 PMCID: PMC9364225 DOI: 10.1039/d2ra02611b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 07/27/2022] [Indexed: 11/24/2022] Open
Abstract
Metformin (MTF), an effective biguanide and oral antihyperglycemic agent, is utilized to control blood glucose levels in patients with type II diabetes mellitus, and the determination of its concentration in biological fluids is one of the main issues in pharmacology and medicine. In this work, highly luminescent nitrogen-doped graphene quantum dots (N-GQDs) were modified using terbium (Tb3+)–1,10-phenanthroline (Phen) nanoparticles (NPs) to develop a dual-emission ratiometric fluorescent sensor for the determination of MTF in biological samples. The synthesized N-GQDs/Tb–Phen NPs were characterized using different techniques to confirm their physicochemical properties. The N-GQDs/Tb–Phen NPs showed two characteristic emission peaks at 450 nm and 630 nm by exciting at 340 nm that belong to N-GQDs and Tb–Phen NPs, respectively. The results indicated that the emission intensity of both N-GQDs and Tb–Phen NPs enhanced upon interaction with MTF in a concentration-dependent manner. Also, a good linear correlation between the enhanced fluorescence intensity of the system and MTF concentration was observed in the range of 1.0 nM–7.0 μM and the limit of detection (LOD) value obtained was 0.76 nM. In addition, the prepared probe was successfully used for the estimation of MTF concentration in spiked human serum samples. In conclusion, the reported dual-emission ratiometric fluorescent sensor can be used as a sensitive and simple fluorimetric method for the detection of MTF in real samples. Shcematic representation of the MTF detection by an enhancing mechanism.![]()
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Affiliation(s)
- Masoud Gazizadeh
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz Tabriz Iran +98 41 3339 2739
| | - Gholamreza Dehghan
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz Tabriz Iran +98 41 3339 2739
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences Tabriz Iran +98 41 3337 5365
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10
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Ball-Milled Graphene Quantum Dots for Enhanced Anti-Cancer Drug Delivery. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Teng Y, Yuan S, Shi J, Pong PWT. A Multifunctional Nanoplatform Based on Graphene Quantum Dots‐Cobalt Ferrite for Monitoring of Drug Delivery and Fluorescence/Magnetic Resonance Bimodal Cellular Imaging. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Yun Teng
- Department of Electrical and Electronic Engineering The University of Hong Kong 999077 Hong Kong
| | - Shuai Yuan
- Department of Electrical and Electronic Engineering The University of Hong Kong 999077 Hong Kong
| | - Jue Shi
- Department of Physics Hong Kong Baptist University 999077 Hong Kong
| | - Philip W. T. Pong
- Department of Electrical and Computer Engineering New Jersey Institute of Technology Newark 07102 USA
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12
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Kuznetsov AE. Review of research of nanocomposites based on graphene quantum dots. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2019-0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Graphene quantum dots (GQDs) belong to the vast and versatile family of carbon nanomaterials. Their unique position amongst versatile carbon nanoparticles (NPs) originates from the properties of quantum confinement and edge effects. GQDs are similar to conventional semiconductor QDs due to their tunable band gaps and high photoluminescence activity. However, GQDs have superior characteristics due to their excellent biocompatibility, low toxicity, good water dispersibility, large optical absorptivity, high fluorescence activity and photostability. These properties have generated significant interest in GQDs applications in various fields: nanosensor fabrication, drug delivery, photocatalysis, photovoltaics, and photodynamic therapy. Numerous GQD-based nanocomposites/nanohybrides have been synthesized and/or studied computationally. This review focuses on recent computational studies of various GQD-based nanocomposites/nanohybrides and systems which can be related to them.
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Affiliation(s)
- Aleksey E. Kuznetsov
- Department of Chemistry , Universidad Tecnica Federico Santa Maria , Santiago , Chile
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13
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Wang M, Liu M, Nong S, Song W, Zhang X, Shen S, Jian G, Chen X, Li Z, Xu L. Highly Luminescent Nucleoside-Based N, P-Doped Carbon Dots for Sensitive Detection of Ions and Bioimaging. Front Chem 2022; 10:906806. [PMID: 35747344 PMCID: PMC9210210 DOI: 10.3389/fchem.2022.906806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/28/2022] [Indexed: 12/28/2022] Open
Abstract
The efficient detection of Fe3+ and MnO4− in a water environment is very important and challenging due to their harmful effects on the health of humanity and environmental systems. Good biocompatibility, sensitivity, selectivity, and superior photophysical properties were important attributes of carbon dot-based CDs sensors for sensing applications. In this work, we synthesized N, P-co-doped carbon dots (N/P CDs) with guanosine 5′-monophosphate (GMP) as a green carbon source, with high fluorescence quantum yield in water (QY, 53.72%). First, the luminescent N/P CDs showed a three-state “on-off-on” fluorescence response upon the sequential addition of Fe3+ and F−, with a low detection limit of 12 nM for Fe3+ and 8.5 nM for F−, respectively. Second, the N/P CDs also exhibited desirable selectivity and sensitivity for toxic MnO4− detection with the limit of detection of 18.2 nM, through a turn-off mechanism. Moreover, the luminescent N/P CDs successfully monitored the aforementioned ions in environmental water samples and in Escherichia coli.
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Affiliation(s)
- Mengru Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Mengling Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Shuli Nong
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Wenzhu Song
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Xianpeng Zhang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Shuang Shen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Guohong Jian
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Xiangyao Chen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Zhanchao Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
- *Correspondence: Li Xu, ; Zhanchao Li ,
| | - Li Xu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
- Guangdong Pharmaceutical University−University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan, China
- *Correspondence: Li Xu, ; Zhanchao Li ,
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14
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Ghaffarkhah A, Hosseini E, Kamkar M, Sehat AA, Dordanihaghighi S, Allahbakhsh A, van der Kuur C, Arjmand M. Synthesis, Applications, and Prospects of Graphene Quantum Dots: A Comprehensive Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2102683. [PMID: 34549513 DOI: 10.1002/smll.202102683] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/12/2021] [Indexed: 05/24/2023]
Abstract
Graphene quantum dot (GQD) is one of the youngest superstars of the carbon family. Since its emergence in 2008, GQD has attracted a great deal of attention due to its unique optoelectrical properties. Non-zero bandgap, the ability to accommodate functional groups and dopants, excellent dispersibility, highly tunable properties, and biocompatibility are among the most important characteristics of GQDs. To date, GQDs have displayed significant momentum in numerous fields such as energy devices, catalysis, sensing, photodynamic and photothermal therapy, drug delivery, and bioimaging. As this field is rapidly evolving, there is a strong need to identify the emerging challenges of GQDs in recent advances, mainly because some novel applications and numerous innovations on the ease of synthesis of GQDs are not systematically reviewed in earlier studies. This feature article provides a comparative and balanced discussion of recent advances in synthesis, properties, and applications of GQDs. Besides, current challenges and future prospects of these emerging carbon-based nanomaterials are also highlighted. The outlook provided in this review points out that the future of GQD research is boundless, particularly if upcoming studies focus on the ease of purification and eco-friendly synthesis along with improving the photoluminescence quantum yield and production yield of GQDs.
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Affiliation(s)
- Ahmadreza Ghaffarkhah
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ehsan Hosseini
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Milad Kamkar
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ali Akbari Sehat
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Sara Dordanihaghighi
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ahmad Allahbakhsh
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
| | - Colin van der Kuur
- ZEN Graphene Solutions, 210-1205 Amber Dr., Thunder Bay, ON, P7B 6M4, Canada
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
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15
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Kothalawala NL, Kim SW, Kim N, Henderson CJ, Seol M, Yang F, Kwak SY, Hwang KY, Son WJ, Shin HJ, Choi H, Kim BS, Kim DY. Identifying molecular fluorophore impurities in the synthesis of low-oxygen-content, carbon nanodots derived from pyrene. NEW J CHEM 2022. [DOI: 10.1039/d2nj00430e] [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
Determination of the formation of bright molecular fluorphores during the synthesis of pyrene-derived CNDs, through extensive separation and systematic characterization.
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Affiliation(s)
| | - Sang Won Kim
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Namhee Kim
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Collan J. Henderson
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, 40506, USA
| | - Minsu Seol
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Fuqian Yang
- Materials Program, Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
| | - Seung-Yeon Kwak
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Kyu Young Hwang
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Won-Joon Son
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Hyeon-Jin Shin
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Hyeonho Choi
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Byeong-Su Kim
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea
| | - Doo Young Kim
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, 40506, USA
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16
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Hickey SM, Ung B, Bader C, Brooks R, Lazniewska J, Johnson IRD, Sorvina A, Logan J, Martini C, Moore CR, Karageorgos L, Sweetman MJ, Brooks DA. Fluorescence Microscopy-An Outline of Hardware, Biological Handling, and Fluorophore Considerations. Cells 2021; 11:35. [PMID: 35011596 PMCID: PMC8750338 DOI: 10.3390/cells11010035] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/16/2022] Open
Abstract
Fluorescence microscopy has become a critical tool for researchers to understand biological processes at the cellular level. Micrographs from fixed and live-cell imaging procedures feature in a plethora of scientific articles for the field of cell biology, but the complexities of fluorescence microscopy as an imaging tool can sometimes be overlooked or misunderstood. This review seeks to cover the three fundamental considerations when designing fluorescence microscopy experiments: (1) hardware availability; (2) amenability of biological models to fluorescence microscopy; and (3) suitability of imaging agents for intended applications. This review will help equip the reader to make judicious decisions when designing fluorescence microscopy experiments that deliver high-resolution and informative images for cell biology.
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Affiliation(s)
- Shane M. Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (C.B.); (R.B.); (J.L.); (I.R.D.J.); (A.S.); (J.L.); (C.M.); (C.R.M.); (L.K.); (M.J.S.); (D.A.B.)
| | - Ben Ung
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (C.B.); (R.B.); (J.L.); (I.R.D.J.); (A.S.); (J.L.); (C.M.); (C.R.M.); (L.K.); (M.J.S.); (D.A.B.)
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17
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Wang H, Qi C, Yang A, Wang X, Xu J. One-Pot Synthesis of Bright Blue Luminescent N-Doped GQDs: Optical Properties and Cell Imaging. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2798. [PMID: 34835564 PMCID: PMC8623353 DOI: 10.3390/nano11112798] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 12/27/2022]
Abstract
High fluorescent graphene quantum dots (GQDs) are promising in bioimaging and optoelectronics. In this paper, bright blue fluorescent N-doped GQDs were synthesized using a ultrasonic-assisted hydrothermal method. The morphology, structure, surface chemistry, optical properties, and stability subject to photo-bleaching, temperature, pH and preservation period for the N-GQDs were investigated in detail using various microscopy and spectroscopy techniques. The results showed that the N-GQDs possessed an average size of 2.65 nm, 3.57% N doping, and up to 54% quantum yield (QY). The photoluminescence (PL) spectra of the N-GQDs are excitation dependent when excited in the range of 300-370 nm and excitation independent in the range of 380-500 nm for the core and surface states emission. The N-GQDs showed excellent photo-bleaching resistance and superior photo-stability. At room temperature and in the pH range of 3-8, the fluorescence of the N-GQDs was almost invariable. The N-GQDs can be stably preserved for at least 40 days. The average decay lifetime of the N-GQDs was 2.653 ns, and the radiative and nonradiative decay rate constants were calculated to be 2.04 × 108 s-1 and 1.73 × 108 s-1, respectively. The PL mechanism was qualitatively explained. The N-GQDs was used for cell imaging, and it showed good results, implying great potential applications for bioimaging or biomarking.
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Affiliation(s)
- Huaidong Wang
- College of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao 266100, China; (H.W.); (C.Q.)
| | - Chong Qi
- College of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao 266100, China; (H.W.); (C.Q.)
| | - Ailing Yang
- College of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao 266100, China; (H.W.); (C.Q.)
| | - Xiaoxu Wang
- College of Food Science & Engineering, Ocean University of China, Qingdao 266003, China; (X.W.); (J.X.)
| | - Jie Xu
- College of Food Science & Engineering, Ocean University of China, Qingdao 266003, China; (X.W.); (J.X.)
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18
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A novel cationic surfactant synthesized from carbon quantum dots and the versatility. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Cui G, Wu J, Lin J, Liu W, Chen P, Yu M, Zhou D, Yao G. Graphene-based nanomaterials for breast cancer treatment: promising therapeutic strategies. J Nanobiotechnology 2021; 19:211. [PMID: 34266419 PMCID: PMC8281664 DOI: 10.1186/s12951-021-00902-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/20/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most common malignancy in women, and its incidence increases annually. Traditional therapies have several side effects, leading to the urgent need to explore new smart drug-delivery systems and find new therapeutic strategies. Graphene-based nanomaterials (GBNs) are potential drug carriers due to their target selectivity, easy functionalization, chemosensitization and high drug-loading capacity. Previous studies have revealed that GBNs play an important role in fighting breast cancer. Here, we have summarized the superior properties of GBNs and modifications to shape GBNs for improved function. Then, we focus on the applications of GBNs in breast cancer treatment, including drug delivery, gene therapy, phototherapy, and magnetothermal therapy (MTT), and as a platform to combine multiple therapies. Their advantages in enhancing therapeutic effects, reducing the toxicity of chemotherapeutic drugs, overcoming multidrug resistance (MDR) and inhibiting tumor metastasis are highlighted. This review aims to help evaluate GBNs as therapeutic strategies and provide additional novel ideas for their application in breast cancer therapy.
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Affiliation(s)
- Guangman Cui
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junrong Wu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Jiaying Lin
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenjing Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Peixian Chen
- Department of Breast Surgery, The First People's Hospital of Foshan, Sun Yat-Sen University, Guangdong, China
| | - Meng Yu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Dan Zhou
- Department of Breast Surgery, The First People's Hospital of Foshan, Sun Yat-Sen University, Guangdong, China.
| | - Guangyu Yao
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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20
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Tao J, Feng S, Liu B, Pan J, Li C, Zheng Y. Hyaluronic acid conjugated nitrogen-doped graphene quantum dots for identification of human breast cancer cells. Biomed Mater 2021; 16. [PMID: 34157704 DOI: 10.1088/1748-605x/ac0d93] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/22/2021] [Indexed: 11/12/2022]
Abstract
Accurate distinguish of cancer cells through fluorescence plays an important role in cancer diagnosis. Here we synthesized a blue fluorescent nitrogen-doped graphene quantum dots (N-GQDs) from citric acid and diethylamine via one-step hydrothermal synthesis method which was simple and quick to avoid by-products, and highlighted the binding sites to achieve precise combination. Due to the nitrogen element doping, amide II bond was amply obtained and abundant binding sites were provided for hyaluronic acid (HA) conjugation. N-GQDs solution with different pH value was then conjugated to HA via an amide bond for the recognition of human breast cancer cells (MCF-7 cells), and the formation of amide bond was more favorable under alkaline conditions. HA conjugated N-GQDs (HA-N-GQDs) were combined with CD44 which was over expressed on the surface of MCF-7 cells, resulting in MCF-7 cells performing stronger fluorescence. HA-N-GQDs showed high fluorescence, low toxicity, and good cytocompatibility, which held it play a role in fluorescence imaging for accurate identification of cancer cells.
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Affiliation(s)
- Junting Tao
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Shixuan Feng
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Bing Liu
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Jiaqi Pan
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Chaorong Li
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yingying Zheng
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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21
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Chung S, Revia RA, Zhang M. Graphene Quantum Dots and Their Applications in Bioimaging, Biosensing, and Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e1904362. [PMID: 31833101 PMCID: PMC7289657 DOI: 10.1002/adma.201904362] [Citation(s) in RCA: 219] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/22/2019] [Indexed: 05/05/2023]
Abstract
Graphene quantum dots (GQDs) are carbon-based, nanoscale particles that exhibit excellent chemical, physical, and biological properties that allow them to excel in a wide range of applications in nanomedicine. The unique electronic structure of GQDs confers functional attributes onto these nanomaterials such as strong and tunable photoluminescence for use in fluorescence bioimaging and biosensing, a high loading capacity of aromatic compounds for small-molecule drug delivery, and the ability to absorb incident radiation for use in the cancer-killing techniques of photothermal and photodynamic therapy. Recent advances in the development of GQDs as novel, multifunctional biomaterials are presented with a focus on their physicochemical, electronic, magnetic, and biological properties, along with a discussion of technical progress in the synthesis of GQDs. Progress toward the application of GQDs in bioimaging, biosensing, and therapy is reviewed, along with a discussion of the current limitations and future directions of this exciting material.
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Affiliation(s)
- Seokhwan Chung
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Richard A Revia
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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22
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Nasrollahi F, Nazir F, Tavafoghi M, Hosseini V, Ali Darabi M, Paramelle D, Khademhosseini A, Ahadian S. Graphene Quantum Dots for Fluorescent Labeling of Gelatin‐Based Shear‐Thinning Hydrogels. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Fatemeh Nasrollahi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Farzana Nazir
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Department of Chemistry School of Natural Sciences National University of Science and Technology (NUST) Islamabad 44000 Pakistan
| | - Maryam Tavafoghi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
| | - Vahid Hosseini
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Mohammad Ali Darabi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - David Paramelle
- Institute of Materials Research and Engineering A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634 Singapore
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
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23
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Ndebele N, Sen P, Nyokong T. Electrochemical detection of dopamine using phthalocyanine-nitrogen-doped graphene quantum dot conjugates. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Ku T, Hao F, Yang X, Rao Z, Liu QS, Sang N, Faiola F, Zhou Q, Jiang G. Graphene Quantum Dots Disrupt Embryonic Stem Cell Differentiation by Interfering with the Methylation Level of Sox2. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3144-3155. [PMID: 33569944 DOI: 10.1021/acs.est.0c07359] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The tremendous potential for graphene quantum dots (GQDs) in biomedical applications has led to growing concerns of their health risks in human beings. However, present studies mainly focused on oxidative stress, apoptosis, and other general toxicity effects; the knowledge on the developmental toxicity and the related regulatory mechanisms is still far from sufficient. Our study revealed the development retardation of mouse embryonic stem cells (mESCs) caused by GQDs with a novel DNA methylation epigenetic mechanism. Specifically, GQDs were internalized into cells mainly via energy-dependent endocytosis, and a significant fraction of internalized GQDs remained in the cells even after a 48-h clearance period. Albeit with unobservable cytotoxicity or any influences on cell pluripotency, significant retardation was found in the in vitro differentiation of the mESCs into embryoid bodies (EBs) with the upregulation of Sox2 levels in GQD pretreatment groups. Importantly, this effect could be contributed by GQD-induced inhibition in CpG methylation of Sox2 through altering methyltransferase and demethyltransferase transcriptional expressions, and the demethyltransferase inhibitor, bobcat339 hydrochloride, reduced GQD-induced upregulation of Sox2. The current study first demonstrated that GQDs compromised the differentiation program of the mESCs, potentially causing development retardation. Exposure to this nanomaterial during gestation or early developmental period would cause adverse health risks and is worthy of more attention.
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Affiliation(s)
- Tingting Ku
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan 030006, China
| | - Fang Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaoxi Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ziyu Rao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Qian S Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan 030006, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
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25
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Zhu S, Bai X, Wang T, Shi Q, Zhu J, Wang B. One-step synthesis of fluorescent graphene quantum dots as an effective fluorescence probe for vanillin detection. RSC Adv 2021; 11:9121-9129. [PMID: 35423426 PMCID: PMC8695316 DOI: 10.1039/d0ra10825a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/19/2021] [Indexed: 11/23/2022] Open
Abstract
This study proposes an easy bottom-up method for the synthesis of photoluminescent (PL) graphene quantum dots (GQDs) using citric acid as the carbon source. The obtained GQDs were characterized by high-resolution transmission electron microscopy (HRTEM), UV-vis absorption spectroscopy, fluorescence spectroscopy, and Fourier transform infrared spectroscopy (FT-IR). The synthesised GQDs have an average diameter of 4.76 ± 0.96 nm, with a lattice spacing of 0.24 nm. The GQDs exhibit excitation-independent PL emission. The surface of the GQDs has a variety of functional groups (hydroxyl, carboxyl, and ether groups etc.) to enhance its stability and water solubility. In this study, a fluorescent "on-off" sensor is developed for the selective detection of vanillin in chocolates using GQDs as a fluorescent probe. Under optimal conditions, fluorescence intensity of the GQDs has a good linear relationship with the vanillin concentration (0.0-2.1 × 10-5 mol L-1), with a limit of detection of 2.5 × 10-8 mol L-1. For detection in real samples, the percent recovery of vanillin and the relative standard deviation were 88.0-108.9% and 0.90-5.4%, respectively. Thus, this GQDs-based method has good accuracy and precision and can be used for vanillin detection in practical applications.
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Affiliation(s)
- Sujuan Zhu
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University Yangzhou Jiangsu 225009 China
| | - Xuexue Bai
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Ting Wang
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Qiang Shi
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Jing Zhu
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Bing Wang
- Center for Disease Control and Prevention Yangzhou Jiangsu 225009 P. R. China
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26
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Recent Developments in Carbon Quantum Dots: Properties, Fabrication Techniques, and Bio-Applications. Processes (Basel) 2021. [DOI: 10.3390/pr9020388] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Carbon dots have gained tremendous interest attributable to their unique features. Two approaches are involved in the fabrication of quantum dots (Top-down and Bottom-up). Most of the synthesis methods are usually multistep, required harsh conditions, and costly carbon sources that may have a toxic effect, therefore green synthesis is more preferable. Herein, the current review presents the green synthesis of carbon quantum dots (CQDs) and graphene quantum dots (GQDs) that having a wide range of potential applications in bio-sensing, cellular imaging, and drug delivery. However, some drawbacks and limitations are still unclear. Other biomedical and biotechnological applications are also highlighted.
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27
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Kaur P, Choudhury D. Functionality of receptor targeted zinc-insulin quantum clusters in skin tissue augmentation and bioimaging. J Drug Target 2020; 29:541-550. [PMID: 33307859 DOI: 10.1080/1061186x.2020.1864740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Quantum clusters with target specificity are suitable for tissue-specific imaging. In the present work, amorphous zinc insulin quantum clusters (IZnQCs) had been synthesised to promote and monitor wound recovery. Easy synthesis, biocompatibility, stability, enhanced quantum yield, and solubility made the cluster suitable for preclinical/clinical exploration. Zn2+ is known for its binding to insulin hexamer. Here we report the reformation of the structure in a quantum cluster form in the presence of Zn2+. The formation of IZnQCs was confirmed by the change in zeta potential from -25.6 mV to -17.9 mV and also the formation of protein metal interaction was confirmed in FTIR bands at 450, 480, and 613 cm-1 for Zn-O, Zn-N, and Zn-S, respectively. HRTEM-EDS and SAED data analysis showed an amorphous nature of the cluster. The binding of IZnQCs to the cells has been confirmed using confocal microscopy. IZnQCs showed a synergistic effect in wound recovery than insulin or Zn2+ alone. Further due to high fluorescence this recovery process can be monitored under an appropriate setup. Wound healing promotional activity, target specificity, and fluorescence properties make the IZnQCs ideal to use for bioimaging along with promoting and monitoring of wound recovery agent.
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Affiliation(s)
- Pawandeep Kaur
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, India
| | - Diptiman Choudhury
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, India.,Thapar Institute of Engineering and Technology - Virginia Tech Centre for Excellence in Material Sciences, Thapar Institute of Engineering and Technology, Patiala, Punjab, India
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28
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Effect of Synthesis Temperature of Magnetic–Fluorescent Nanoparticles on Properties and Cellular Imaging. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01720-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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A dual-mode nanoprobe for the determination of parathion methyl based on graphene quantum dots modified silver nanoparticles. Anal Bioanal Chem 2020; 412:5583-5591. [PMID: 32572544 DOI: 10.1007/s00216-020-02773-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 12/16/2022]
Abstract
We developed a highly sensitive and selective method for double-signal analysis (fluorescence and ultraviolet-visible spectrophotometry) of organophosphorus pesticides (OPs), based on reversible quenching of graphene quantum dots (GQDs; fluorophores) with silver nanoparticles (AgNPs; absorbers). We used acetylcholinesterase to catalytically convert acetylthiocholine into thiocholine. In turn, by competitive binding to the AgNPs, the produced thiocholine displaces AgNPs from the GQDs and thus induces fluorescence recovery. However, OP analytes inhibit the activity of acetylcholinesterase and, in so doing, retain the silver-graphene nanoparticle complex and fluorescence quenching. The degree of quenching is proportional to the concentration of OPs; the detection limit is as low as 0.017 μg/L. The ultraviolet-visible absorption of GQDs/AgNPs at 390 nm decreases-because of AgNP aggregation that occurs after desorption from the GQDs-and the absorbance is linearly proportional to the OP concentration. Our system has good selectivity to substances that are commonly present in water and vegetables. We successfully applied our method to OP analysis in water, apple, and carrot samples.
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30
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Pawar S, Kaja S, Nag A. Red-Emitting Carbon Dots as a Dual Sensor for In 3+ and Pd 2+ in Water. ACS OMEGA 2020; 5:8362-8372. [PMID: 32309747 PMCID: PMC7161066 DOI: 10.1021/acsomega.0c00883] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/23/2020] [Indexed: 05/18/2023]
Abstract
We have demonstrated the synthesis, characterization, and application of nitrogen-doped red-emitting carbon dots (NRCDs) for dual sensing of indium (In3+) and palladium (Pd2+) in water. The detection of In3+ was associated with "turn-on" fluorescence response with a red shift, while in the presence of Pd2+, the fluorescence intensity of NRCDs was quenched to show a "turn-off" response. The interaction of NRCDs with the metal ions was investigated using 1H nuclear magnetic resonance and Fourier-transform infrared spectroscopy studies. The synthesized nanoprobes possessed good biocompatibility and photostability and were found to be suitable candidates for bioimaging due to their emission profiles in the near-infrared (NIR) window. Applicability of the as-prepared NRCDs was demonstrated in the NIR region when they were loaded in vesicle membranes with and without cations and subjected to confocal imaging successfully.
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Affiliation(s)
- Shweta Pawar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Sravani Kaja
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Amit Nag
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
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31
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Zheng XT, Tan YN. Development of Blood-Cell-Selective Fluorescent Biodots for Lysis-Free Leukocyte Imaging and Differential Counting in Whole Blood. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1903328. [PMID: 31414726 DOI: 10.1002/smll.201903328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/25/2019] [Indexed: 05/23/2023]
Abstract
Complete blood count with leukocyte (white blood cell, WBC) differential is one of the most frequently ordered clinical test for disease diagnosis. Herein, multifunctional fluorescent carbon dots derived from biomolecules (biodots) for rapid lysis-free whole blood analysis are developed. Specifically, two types of biodots are molecularly engineered through hydrothermal synthesis for differential blood cells labeling. Type I biodots synthesized from amino acid (serine/threonine) precursors and passivated with polyethylenimine can label both red blood cells (RBCs) and WBCs with excellent contrast in fluorescence intensity, enabling direct counting of leukocytes in whole blood samples without a tedious RBC lysis step. It also allows three-part leukocyte differential counting by flow cytometry without using expensive fluorophore-conjugated antibodies. On the other hand, Type II biodots synthesized from the same amino acid precursors but passivated with a biopolymer (chitosan) are able to selectively lyse RBCs with greater than 98% efficiency to allow simultaneous fluorescent labeling of leukocytes for WBC counting in whole blood. It is envisioned that these novel nanoreagents, which eliminate the cumbersome lysis and antibody conjugation steps for selective labeling of different blood cells, would revolutionize disease diagnostics toward achieving faster, cheaper, and more accurate whole blood analyses in one test.
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Affiliation(s)
- Xin Ting Zheng
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore, 138634, Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore, 138634, Singapore
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
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32
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Yan Y, Zhai D, Liu Y, Gong J, Chen J, Zan P, Zeng Z, Li S, Huang W, Chen P. van der Waals Heterojunction between a Bottom-Up Grown Doped Graphene Quantum Dot and Graphene for Photoelectrochemical Water Splitting. ACS NANO 2020; 14:1185-1195. [PMID: 31934740 DOI: 10.1021/acsnano.9b09554] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
van der Waals heterojunctions (vdWHs) formed between 2D materials have attracted tremendous attention recently due to their extraordinary properties, which cannot be offered by their individual components or other heterojunctions. Intriguing electronic coupling, lowered energy barrier, intimate charge transfer, and efficient exciton separation occurring at the atomically sharp interface promise their applications in catalysis, which, however, are largely unexplored. Herein, we demonstrate a 0D/2D vdWH between 0D graphene quantum dots (GQDs) and 2D pristine graphene sheets, simply prepared by ultrasonication of graphite powder using GQDs as intercalation surfactant. Such an all-carbon Schottky-diode-like 0D/2D vdWH is employed for the emerging photoelectrochemical catalysis (water splitting) with high performance. The demonstrated low-cost and scalable bottom-up growth of heteroatom-doped GQDs will greatly promote their widespread applications. Moreover, the mechanisms underlying GQD growth and heterojunction-mediated catalysis are revealed both experimentally and theoretically.
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Affiliation(s)
- Yibo Yan
- Shaanxi Institute of Flexible Electronics , Northwestern Polytechnical University , 127 West Youyi Road , Xi'an 710072 , People's Republic of China
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
| | - Dong Zhai
- Materials Genome Institute (MGI), International Centre for Quantum and Molecular Structures (ICQMS), Department of Physics , Shanghai University , 333 Nanchen Road , Shanghai 200444 , People's Republic of China
- Institute of Molecular Sciences and Engineering , Shandong University , 72 Binhai Road , Qingdao 266237 , People's Republic of China
| | - Yi Liu
- Materials Genome Institute (MGI), International Centre for Quantum and Molecular Structures (ICQMS), Department of Physics , Shanghai University , 333 Nanchen Road , Shanghai 200444 , People's Republic of China
| | - Jun Gong
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
| | - Jie Chen
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
| | - Ping Zan
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
| | - Zhiping Zeng
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
| | - Shuzhou Li
- School of Materials Science and Engineering , Nanyang Technological University , Singapore , 639798 , Singapore
| | - Wei Huang
- Shaanxi Institute of Flexible Electronics , Northwestern Polytechnical University , 127 West Youyi Road , Xi'an 710072 , People's Republic of China
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices , Nanyang Technological University , 70 Nanyang Drive , Singapore , 637457 , Singapore
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Lai S, Jin Y, Shi L, Zhou R, Zhou Y, An D. Mechanisms behind excitation- and concentration-dependent multicolor photoluminescence in graphene quantum dots. NANOSCALE 2020; 12:591-601. [PMID: 31828259 DOI: 10.1039/c9nr08461d] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Despite numerous efforts, the mechanism behind multicolor photoluminescence (PL) in graphene quantum dots (GQDs) is still controversial. A deep insight into the origin of the multicolor emissions in GQDs is quite necessary for modulating their luminescence to facilitate the better use of this fluorescent material. Herein, GQDs with amino, carboxyl, and ammonium carboxylate groups were synthesized. The as-prepared GQDs exhibited intriguing excitation- and concentration-dependent multicolor PL characteristics. By regulating the excitation wavelength or concentration of GQDs, specific luminescence colors including blue, cyan, green, yellow, and even orange can be obtained. Systematic structural and optical studies indicated that the graphene basal plane and different functional groups dominantly exhibited nN 2P-σ*, π-π*, nO 2p-π* (-COOH), nO 2p-π* (-COO-) and nN 2p-π* electronic transitions, which appeared as multi-fluorescent centers that gave rise to the excitation-dependent multicolor PL. The occurrence of different types of electronic transitions and their color emissions were proved by pH-dependent PL measurements. In addition, systematic optical and morphology analyses revealed that GQDs could self-assemble into J-type aggregates with different morphologies and sizes as the concentration increased, and the observed concentration-dependent multicolor PL can be ascribed to aggregation-mediated energy level reconstruction in GQDs. Our findings further suggest that the competition among various fluorescent centers and self-aggregation processes dominated the luminescent properties of GQDs. This work will contribute to understand the origins of excitation- and concentration-dependent multicolor emissions in GQDs, which is also highly instructive for broadening the application fields of GQDs.
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Affiliation(s)
- Shuangquan Lai
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China.
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Iravani S, Varma RS. Green synthesis, biomedical and biotechnological applications of carbon and graphene quantum dots. A review. ENVIRONMENTAL CHEMISTRY LETTERS 2020; 18:703-727. [PMID: 32206050 PMCID: PMC7088420 DOI: 10.1007/s10311-020-00984-0] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 03/01/2020] [Indexed: 05/18/2023]
Abstract
Carbon and graphene quantum dots are prepared using top-down and bottom-up methods. Sustainable synthesis of quantum dots has several advantages such as the use of low-cost and non-toxic raw materials, simple operations, expeditious reactions, renewable resources and straightforward post-processing steps. These nanomaterials are promising for clinical and biomedical sciences, especially in bioimaging, diagnosis, bioanalytical assays and biosensors. Here we review green methods for the fabrication of quantum dots, and biomedical and biotechnological applications.
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Affiliation(s)
- Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rajender S. Varma
- Department of Physical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
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35
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Martín C, Jun G, Schurhammer R, Reina G, Chen P, Bianco A, Ménard-Moyon C. Enzymatic Degradation of Graphene Quantum Dots by Human Peroxidases. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1905405. [PMID: 31769611 DOI: 10.1002/smll.201905405] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/03/2019] [Indexed: 05/20/2023]
Abstract
Carbon-based nanomaterials have demonstrated to be potent candidates for biomedical applications. Recently, graphene quantum dots (GQDs) have emerged as an attractive tool for bioimaging, biosensing, and therapy. Hence, studying their biodegradability in living systems is essential to speed up the translation toward real clinical innovations. Here, the enzymatic degradation of GQDs using human myeloperoxidase and eosinophil peroxidase is investigated. Transmission electron microscopy, fluorescence, and Raman spectroscopy are used to evaluate the biodegradation of GQDs. Signs of degradation by both enzymes are observed already after a few hours of incubation with each enzyme, being more evident after a couple of days of treatment. Molecular dynamics simulations show intimate interactions between the enzymes and the GQDs. The conformation of both peroxidases is slightly altered to favor the interactions, while the GQD sheets distort a little to adapt to the surface of the enzymes. The biodegradability of the GQDs ensures their real potential in the practical biomedical applications.
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Affiliation(s)
- Cristina Martín
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, University of Strasbourg, UPR 3572, 67000, Strasbourg, France
| | - Gong Jun
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Rachel Schurhammer
- Laboratoire de Modélisation et Simulations Moléculaires & Laboratoire de Chimie Moléculaire de l'Etat Solide (UMR 7140 CNRS), Université de Strasbourg, 1 rue Blaise Pascal, 67081, Strasbourg, France
| | - Giacomo Reina
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, University of Strasbourg, UPR 3572, 67000, Strasbourg, France
| | - Peng Chen
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, University of Strasbourg, UPR 3572, 67000, Strasbourg, France
| | - Cécilia Ménard-Moyon
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, University of Strasbourg, UPR 3572, 67000, Strasbourg, France
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36
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Lu H, Li W, Dong H, Wei M. Graphene Quantum Dots for Optical Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902136. [PMID: 31304647 DOI: 10.1002/smll.201902136] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/20/2019] [Indexed: 05/08/2023]
Abstract
Graphene quantum dots (GQDs) have shown great potential in bioimaging applications due to their excellent biocompatibility, low cytotoxicity, feasibility for surface functionalization, physiological stability, and tunable fluorescence properties. This Review first introduces the intriguing optical properties of GQDs that are suitable for biological imaging, and is followed by the GQDs' synthetic strategies. The emergent and latest development methods for tuning GQDs' optical properties are further described in detail. The recent advanced applications of GQDs in vitro, particularly in cell imaging, targeted imaging, and theranostic nanoplatform fabrication, are included. The applications of GQDs for in vivo bioimaging are also covered. Finally, the Review is concluded with the challenges and prospectives that face this nascent yet exciting field.
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Affiliation(s)
- Huiting Lu
- Department of Chemistry, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Wenjun Li
- Department of Chemistry, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Haifeng Dong
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Menglian Wei
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G, 2G2, Canada
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Pandit S, Behera P, Sahoo J, De M. In Situ Synthesis of Amino Acid Functionalized Carbon Dots with Tunable Properties and Their Biological Applications. ACS APPLIED BIO MATERIALS 2019; 2:3393-3403. [DOI: 10.1021/acsabm.9b00374] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Subrata Pandit
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Pradipta Behera
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Jagabandhu Sahoo
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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38
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Zhu J, Zhu F, Li L, Cheng L, Zhang L, Sun Y, Wan X, Zhang Z. Highly discriminant rate of Dianhong black tea grades based on fluorescent probes combined with chemometric methods. Food Chem 2019; 298:125046. [PMID: 31260981 DOI: 10.1016/j.foodchem.2019.125046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 01/08/2023]
Abstract
We established a novel Dianhong black tea grades discriminant analytic technique based on a fluorescence image along with carbon quantum dots (CDs) as fluorescent probes. Different grades of Dianhong black tea contain different various amounts of tea polyphenols. Tea polyphenols can quench the fluorescent intensity of CDs, resulting in different fluorescent peaks; Dianhong black tea grades can then be discriminated through the use of principal component analysis and Bayesian analysis. Compared with the additional data processing required in other methods, the advantage of our method is that the fluorescence curve can be used directly, and it achieves satisfactory results. We firstly used CDs combined with chemometrics to identify eight grades of Dianhong black tea, and we also provide a new method that improves the identification rate using nanotechnology to avoid performing complex data processing.
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Affiliation(s)
- Jing Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Fengyuan Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Luqing Li
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Linlin Cheng
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Yue Sun
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China.
| | - Zhengzhu Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, and Department of Applied Chemistry, Anhui Agricultural University, Hefei 230036, Anhui, China.
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Yan Y, Gong J, Chen J, Zeng Z, Huang W, Pu K, Liu J, Chen P. Recent Advances on Graphene Quantum Dots: From Chemistry and Physics to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1808283. [PMID: 30828898 DOI: 10.1002/adma.201808283] [Citation(s) in RCA: 306] [Impact Index Per Article: 61.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/25/2019] [Indexed: 05/18/2023]
Abstract
Graphene quantum dots (GQDs) that are flat 0D nanomaterials have attracted increasing interest because of their exceptional chemicophysical properties and novel applications in energy conversion and storage, electro/photo/chemical catalysis, flexible devices, sensing, display, imaging, and theranostics. The significant advances in the recent years are summarized with comparative and balanced discussion. The differences between GQDs and other nanomaterials, including their nanocarbon cousins, are emphasized, and the unique advantages of GQDs for specific applications are highlighted. The current challenges and outlook of this growing field are also discussed.
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Affiliation(s)
- Yibo Yan
- Shaanxi Institute of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jun Gong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jie Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Zhiping Zeng
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Wei Huang
- Shaanxi Institute of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China
| | - Kanyi Pu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jiyang Liu
- Department of Chemistry, School of Sciences, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, China
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
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Sung H, Sharma M, Jang J, Lee SY, Choi MG, Lee K, Jung N. Boosting the oxygen reduction activity of a nano-graphene catalyst by charge redistribution at the graphene-metal interface. NANOSCALE 2019; 11:5038-5047. [PMID: 30839982 DOI: 10.1039/c8nr10327e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
N-Doped carbon materials have been intensively studied to replace Pt catalysts for the oxygen reduction reaction (ORR) in anion exchange membrane fuel cells (AEMFCs). However, the low doping level in these catalysts results in a limited number of ORR active sites, so high catalyst loading is still required. Hence, the electrode thickness becomes extra thick, causing large mass transfer resistance in AEMFCs. In this study, we propose a unique hybrid catalyst concept utilizing charge redistribution at the graphene-transition metal interface to modify the electronic structure of graphene and simultaneously create multiple carbon active sites. The hybrid catalyst consists of n-type nano-graphene shells (NGS) three-dimensionally coated on the surface of transition metal nanoparticles highly dispersed on carbon supports. The n-type NGS catalysts efficiently facilitate oxygen adsorption owing to facile charge transfer from the metal nanoparticles underneath and provide abundant active carbon sites owing to their structural benefits. As a result, despite the same catalyst loading, the NGS catalyst shows high ORR activity and greater durability than a carbon-supported Pt (Pt/C) catalyst.
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Affiliation(s)
- Hukwang Sung
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
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41
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A nitrocellulose paper strip for fluorometric determination of bisphenol A using molecularly imprinted nanoparticles. Mikrochim Acta 2019; 186:218. [DOI: 10.1007/s00604-019-3323-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/13/2019] [Indexed: 11/30/2022]
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42
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Li S, Li C, Song X, Su B, Mandal B, Prasad B, Gao X, Gao C. Graphene Quantum Dots-Doped Thin Film Nanocomposite Polyimide Membranes with Enhanced Solvent Resistance for Solvent-Resistant Nanofiltration. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6527-6540. [PMID: 30633865 DOI: 10.1021/acsami.8b19834] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The core of the organic solvent nanofiltration (OSN) technology is solvent-resistant nanofiltration (SRNF) membranes. Till now, relative poor performance of solvent resistance is still the bottleneck of industrial application of SRNF membranes. This work reports a novel polyimide (PI)-based thin-film nanocomposite (TFN) membrane which was embedded with graphene quantum dots (GQDs) and showed an improved solvent resistance for OSN application. This kind of SRNF membrane, termed (PI-GQDs/PI)XA, was synthesized via serial processes of interfacial polymerization (IP), imidization, cross-linking, and solvent activation. The IP process was performed between an aqueous m-phenylenediamine solution doped with GQDs, having an average size of 1.9 nm, and an 1,2,4,5-benzenetetracarboxylic acyl chloride n-hexane solution on the PI substrate surface. The prepared (PI-GQDs-50/PI)X SRNF membranes without organic solvent activation achieved an ethanol permeance of nearly 50% higher than those of the GQD-free membranes under the same preparation conditions, while no compromise of the dye rejection was observed. Further, after the solvent activation using N, N-dimethylformamide (DMF) at 80 °C for 30 min, the ethanol permeance achieved about an 8-folds increment, from 2.84 to 22.6 L m-2 h-1 MPa-1. Interestingly, the rejection of rhodamine B also increased from 97.8 to 98.6%. A long-term permeation test of more than 100 h using rose bengal (RB, 1017 Da)/DMF solution at room temperature demonstrated that the synthesized (PI-GQDs-50/PI)XA membranes could maintain the DMF permeance and the RB rejection as high as 18.3 L m-2 h-1 MPa-1 and 99.9%, respectively. Moreover, the immersion test of the prepared (PI-GQDs-50/PI)XA SRNF membranes in both DMF and ethanol at room temperature for about one year also demonstrated the long-term organic solvent stability, indicating their good potential for OSN application.
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Affiliation(s)
- Shuxuan Li
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
| | - Can Li
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
| | - Xiaojuan Song
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
| | - Baowei Su
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
| | - Bishnupada Mandal
- Department of Chemical Engineering , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Babul Prasad
- Department of Chemical Engineering , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Xueli Gao
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
| | - Congjie Gao
- Key Laboratory of Marine Chemistry Theory and Technology , Ocean University of China, Ministry of Education , Qingdao 266100 , China
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Wang G, He P, Xu A, Guo Q, Li J, Wang Z, Liu Z, Chen D, Yang S, Ding G. Promising Fast Energy Transfer System Between Graphene Quantum Dots and the Application in Fluorescent Bioimaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:760-766. [PMID: 30485105 DOI: 10.1021/acs.langmuir.8b03739] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Tunable photoluminescence performance of graphene quantum dots (GQDs) is one of the most important topics for the development of GQDs. In this paper, we report lattice-doped GQDs (boron-doped GQDs (B-GQDs) and phosphorus-doped GQDs (P-GQDs)). Because of the matched band structure, the fast energy transfer between blue-emitted B-GQDs (emission wavelength: 460 nm) and orange-emitted P-GQDs (emission wavelength: 630 nm) can induce an efficient fluorescence emission in P-GQDs once B-GQDs are excited under the optimal excitation wavelength of 460 nm. Moreover, with the effective energy transfer, the quantum yield of P-GQDs increased to 0.48, which is much higher than that of pure P-GQDs. We also demonstrated the potentials of this system for fluorescent bioimaging in vitro.
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Affiliation(s)
- Gang Wang
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Anli Xu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Qinglei Guo
- Department of Materials Science , Fudan University , Shanghai 200433 , P. R. China
| | - Jiurong Li
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Zihao Wang
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Zhiduo Liu
- State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors , Chinese Academy of Sciences , Beijing 100083 , P. R. China
| | - Da Chen
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Guqiao Ding
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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Castan-Laurell I, Masri B, Valet P. The apelin/APJ system as a therapeutic target in metabolic diseases. Expert Opin Ther Targets 2019; 23:215-225. [PMID: 30570369 DOI: 10.1080/14728222.2019.1561871] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Apelin, a bioactive peptide, is the endogenous ligand of APJ, a G protein-coupled receptor which is widely expressed in peripheral tissues and in the central nervous system. The apelin/APJ system is involved in the regulation of various physiological functions and is a therapeutic target in different pathologies; the development of APJ agonists and antagonists has thus increased. Area covered: This review focuses on the in vitro and in vivo metabolic effects of apelin in physiological conditions and in the context of metabolic diseases. Expert opinion: In experimental models, novel APJ agonists are efficient in vivo, to treat metabolic diseases and associated complications. However, more clinical trials are necessary to determine whether molecules that target APJ could become an alternative therapeutic strategy in the treatment of metabolic diseases and associated complications.
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Affiliation(s)
- Isabelle Castan-Laurell
- a Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), INSERM U1048 , Université de Toulouse , Toulouse , France
| | - Bernard Masri
- a Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), INSERM U1048 , Université de Toulouse , Toulouse , France
| | - Philippe Valet
- a Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), INSERM U1048 , Université de Toulouse , Toulouse , France
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Dong J, Yao X, Sun S, Zhong Y, Qian C, Yang D. In vivo targeting of breast cancer with a vasculature-specific GQDs/hMSN nanoplatform. RSC Adv 2019; 9:11576-11584. [PMID: 35520225 PMCID: PMC9063495 DOI: 10.1039/c9ra01833f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 04/05/2019] [Indexed: 12/21/2022] Open
Abstract
According to our previous experiment, graphene quantum dots capped in hollow mesoporous silica nanoparticles, denoted as GQDs@hMSN, and its conjugates exhibited great potential for medical applications due to their commendable biocompatibility.
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Affiliation(s)
- Jingjing Dong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Xinyue Yao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
- Jiangsu Vocational College of Nursing
| | | | - Yuanyuan Zhong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Chuntong Qian
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Dongzhi Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
- Department of Pharmaceutical Analysis
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Nasrollahi F, Koh YR, Chen P, Varshosaz J, Khodadadi AA, Lim S. Targeting graphene quantum dots to epidermal growth factor receptor for delivery of cisplatin and cellular imaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:247-257. [DOI: 10.1016/j.msec.2018.09.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 08/03/2018] [Accepted: 09/07/2018] [Indexed: 12/18/2022]
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47
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Dai S, Zhang W, Shao S, Tang Y, Shao L, Liu T, Cheng G, He P, Fang Y. Design strategy for a novel electrochemically active–inactive switching molecular beacon based on Hemin for SNPs and insulin detection directly in homogenous solution. Talanta 2018; 190:313-320. [DOI: 10.1016/j.talanta.2018.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/12/2018] [Accepted: 08/04/2018] [Indexed: 12/26/2022]
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48
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Thurner GC, Debbage P. Molecular imaging with nanoparticles: the dwarf actors revisited 10 years later. Histochem Cell Biol 2018; 150:733-794. [PMID: 30443735 PMCID: PMC6267421 DOI: 10.1007/s00418-018-1753-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2018] [Indexed: 11/14/2022]
Abstract
We explore present-day trends and challenges in nanomedicine. Creativity in the laboratories continues: the published literature on novel nanoparticles is now vast. Nanoagents are discussed here which are composed entirely of strongly photoluminescent materials, tunable to desired optical properties and of inherently low toxicity. We focus on "quantum nanoparticles" prepared from allotropes of carbon. The principles behind strong, tunable photoluminescence are quantum mechanical: we present them in simple outline. The major industries racing to develop these materials can offer significant technical guidance to nanomedicine, which could help to custom-design strongly signalling nanoagents specifically for stated clinical applications. Since such agents are small, they can be targeted easily, making active targeting possible. We consider it timely now to study the interactions nanoparticles undergo with tissue components in living animals and to learn to understand and overcome the numerous barriers the organism interposes between the blood and targets in or on parenchymal cells. As the near infra-red spectrum opens up, detection of glowing nanoparticles several centimeters deep in a living human subject becomes calculable and we present a simple way to do this. Finally, we discuss the slow-fuse and resource-inefficient entry of nanoparticles into clinical application. A first possible reason is failure to target across the body's barriers, see above. Second, in the sparse translational landscape funding and support gaps yawn widely between academic research and subsequent development. We consider the agendas of the numerous "stakeholders" participating in this sad landscape and point to some faint glimmers of hope for the future.
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Affiliation(s)
- Gudrun C Thurner
- Department of Radiology, Innsbruck Medical University, 6020, Innsbruck, Austria
| | - Paul Debbage
- Division of Histology and Embryology, Department of Anatomy, Medical University Innsbruck, Muellerstrasse 59, 6020, Innsbruck, Austria.
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Yim SG, Kim YJ, Kang YE, Moon BK, Jung ES, Yang SY. Size Fractionation of Fluorescent Graphene Quantum Dots Using a Cross-Flow Membrane Filtration System. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E959. [PMID: 30469312 PMCID: PMC6267503 DOI: 10.3390/nano8110959] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 01/19/2023]
Abstract
Graphene quantum dots (GQDs) have received great attention as optical agents because of their low toxicity, stable photoluminescence (PL) in moderate pH solutions, and size-dependent optical properties. Although many synthetic routes have been proposed for producing GQD solutions, the broad size distribution in GQD solutions limits its use as an efficient optical agent. Here, we present a straightforward method for size fractionation of GQDs dispersed in water using a cross-flow filtration system and a track-etched membrane with cylindrical uniform nanopores. The GQD aqueous suspension, which primarily contained blue-emitting GQDs (B-GQDs) and green-emitting GQDs (G-GQDs), was introduced to the membrane in tangential flow and was fractionated with a constant permeate flow of about 800 L m-2 h-1 bar-1. After filtration, we observed a clear blue PL spectrum from the permeate side, which can be attributed to selective permeation of relatively small B-GQDs. The process provided a separation factor (B-GQDs/G-GQDs) of 0.74. In the cross-flow filtration system, size-dependent permeation through cylindrical nanochannels was confirmed by simulation. Our results demonstrate a feasible method facilitating size fractionation of two-dimensional nanostructures using a cross-flow membrane filtration system. Since membrane filtration is simple, cost-effective, and scalable, our approach can be applied to prepare a large amount of size-controlled GQDs required for high performance opto-electronics and bio-imaging applications.
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Affiliation(s)
- Sang-Gu Yim
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | - Yong Jin Kim
- Center for Multidimensional Carbon Materials, Institute of Basic Science, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea.
| | - Ye-Eun Kang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | - Byung Kee Moon
- Department of Physics, Pukyong National University, Busan 48513, Korea.
| | - Eun Sang Jung
- Department of Bio Environmental Energy, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | - Seung Yun Yang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
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50
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Luo J, Zhang M, Cheng J, Wu S, Xiong W, Kong H, Zhao Y, Qu H. Hemostatic effect of novel carbon dots derived from Cirsium setosum Carbonisata. RSC Adv 2018; 8:37707-37714. [PMID: 35558604 PMCID: PMC9089398 DOI: 10.1039/c8ra06340k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/25/2018] [Indexed: 11/21/2022] Open
Abstract
In this study, for the first time, we discovered novel water-soluble carbon dots (CDs, named CSC-CDs) from aqueous extracts of Cirsium setosum Carbonisata (CSC), which were uniform in size and possessed a nearly spherical shape, and the CDs exhibited low toxicity against RAW 264.7 cells by CCK-8 assay. Most importantly, tail hemorrhaging and liver hemorrhaging experiments showed that CSC-CD-treated mice had significantly shorter bleeding times than normal saline-treated mice. Coagulation assays suggested that the CSC-CDs could stimulate the extrinsic blood coagulation system and activate the fibrinogen system. These results suggested that the CSC-CDs have a remarkable hemostatic effect. The study provides evidence to support the further investigation of the considerable potential of carbon dots.
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Affiliation(s)
- Juan Luo
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 100029 China
| | - Meiling Zhang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine Beijing 100029 China
| | - Jinjun Cheng
- School of Basic Medical Sciences, Beijing University of Chinese Medicine Beijing 100029 China
| | - Shuhong Wu
- Military General Hospital of Beijing PLA China
| | - Wei Xiong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 100029 China
| | - Hui Kong
- School of Basic Medical Sciences, Beijing University of Chinese Medicine Beijing 100029 China
| | - Yan Zhao
- School of Basic Medical Sciences, Beijing University of Chinese Medicine Beijing 100029 China
| | - Huihua Qu
- Center of Scientific Experiment, Beijing University of Chinese Medicine 11 Beisanhuandong Road, Chaoyang District Beijing 100029 China +86 10 6428 6821 +86 10 6428 6705
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