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Dong J, Wang Q, Gu T, Liu G, Petrov YV, Baulin VE, Yu Tsivadze A, Jia D, Zhou Y, Yuan H, Li B. Rapamycin functionalized carbon Dots: Target-oriented synthesis and suppression of vascular cell senescence. J Colloid Interface Sci 2024; 660:534-544. [PMID: 38266335 DOI: 10.1016/j.jcis.2024.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/21/2023] [Accepted: 01/05/2024] [Indexed: 01/26/2024]
Abstract
Suppression of vascular cell senescence is of great significance in preventing cardiovascular diseases such as hypertension and atherosclerosis. The oxidative stress damage caused by reactive oxygen species (ROS) can lead to cellular senescence. Rapamycin (Rapa) is well known to suppress cell senescence via mammalian target of rapamycin (mTOR) pathway. However, poor water solubility and lack of ROS scavenging ability limit the further development of Rapa. To improve the solubility of Rapa and endow with ROS scavenging ability, Rapa functionalized carbon dots (Rapa-CDs) are target-oriented synthesized via free radical polymerization combination with hydrothermal carbonization. Rapa-CDs improve the solubility of Rapa and show ROS scavenging abilities. The solubility of Rapa-CDs with 9.41 g is improved 3.6 × 104 times higher than that of Rapa (2.6 × 10-4 g). The half maximal inhibitory concentration (IC50) of Rapa-CDs toward hydroxyl radical (•OH) and 2,2-Diphenyl-1-picrylhydrazyl free radical (DPPH•) are 0.18 and 0.17 mg/mL, respectively. Rapa-CDs show anti-oxidative stress effect in HEVECs (Human Umbilical Vein Endothelial Cells) via reducing ROS levels by 87 %. Rapa-CDs alleviate HUVECs senescence by suppressing mTOR overactivation, attenuate the expression of P53, P21 and P16. The study demonstrates the target-oriented synthesis of drugs functionalized CDs with anti-senescence via dual-pathway of anti-oxidative stress and mTOR.
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Affiliation(s)
- Jiaxin Dong
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Qi Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, PR China
| | - Tingting Gu
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Guanxiong Liu
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yuri V Petrov
- Laboratory of Dynamics and Extreme Characteristics of Promising Nanostructured Materials, Saint Petersburg State University, St. Petersburg, 199034, Russia
| | - Vladimir E Baulin
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, 142432, Russia; Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Dechang Jia
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu Zhou
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Huiping Yuan
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, PR China.
| | - Baoqiang Li
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China; Laboratory of Dynamics and Extreme Characteristics of Promising Nanostructured Materials, Saint Petersburg State University, St. Petersburg, 199034, Russia.
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2
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Zhang L, Zhang X, Xu Y, Xu J, Huang Y, Yuan Y, Jia L. Portable luminescent fiber- and glove-based nanosensor for multicolor visual detection of tetracycline in food samples. Mikrochim Acta 2024; 191:225. [PMID: 38557876 DOI: 10.1007/s00604-024-06306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/09/2024] [Indexed: 04/04/2024]
Abstract
An intelligent fluorescent nanoprobe (lignite-CDs-Eu) was constructed by an effective and facile method based on lignite-derived carbon dots (CDs) and lanthanide europium ions (Eu3+), which exhibited high sensitivity, low detection limit (13.35 nM) and visual color variation (from blue to red) under ultraviolet light towards tetracycline (TC) detection. Significantly, portable and economical sensors were developed using lignite-CDs-Eu immobilized fiber material of filter paper and wearable glove with the aid of color extracting and image processing application (APP) in the smartphone. Facile, fast and real-time visual detection of TC in food samples was realized. Moreover, logic gate circuit was also designed to achieve intelligent and semi-quantitative inspection of TC. To some extent, this study extended the cross-application of intelligent computer software in food analytical science, and provided a certain reference for the development of small portable detection sensors which were suitable for convenience and non-professional use in daily life.
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Affiliation(s)
- Lina Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China
| | - Xia Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China
| | - Yiru Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China
| | - Jun Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China.
| | - Yuanyuan Huang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China
| | - Yingqi Yuan
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China
| | - Lei Jia
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. #2001 Shiji Road, Jiaozuo, Henan, 454000, China.
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3
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Wu F, Yang J, Ye Y, Wu R, Wang H. Chlorine-doped MoS 2 quantum dots embedded in a molecularly imprinted polymer for highly selective and sensitive optosensing of quercetin. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:269-275. [PMID: 38112593 DOI: 10.1039/d3ay01656k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Chlorine-doped MoS2 quantum dots (Cl-MoS2 QDs) embedded in a SiO2 molecularly imprinted polymer (Cl-MoS2 QDs@SiO2@MIP) have been successfully synthesized and can be used for highly selective and sensitive optosensing of quercetin. The novel environmentally friendly sensor integrated the advantages of the Cl-MoS2 QDs and MIP, high sensitivity and specific recognition for quercetin. The as-fabricated sensor is used to detect trace amounts of quercetin, and its fluorescence intensity showed a good linear decline with the increasing concentration of quercetin from 2 ng mL-1 to 200 ng mL-1 with a detection limit of 1.2 ng mL-1 (S/N = 3). The Cl-MoS2 QDs@SiO2@MIP probe was employed to assay the content of quercetin of real onion extract with good performance, which is in fine agreement with the result obtained by high performance liquid chromatography. The developed Cl-MoS2 QDs@SiO2@MIP sensor exhibits promising potential in the detection of quercetin.
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Affiliation(s)
- Fengyi Wu
- Water Environment Research Center, College of Chemistry and Material Engineering, Chaohu University, Hefei 238000, China
| | - Jiliang Yang
- Water Environment Research Center, College of Chemistry and Material Engineering, Chaohu University, Hefei 238000, China
| | - Yousheng Ye
- Water Environment Research Center, College of Chemistry and Material Engineering, Chaohu University, Hefei 238000, China
| | - Rong Wu
- Water Environment Research Center, College of Chemistry and Material Engineering, Chaohu University, Hefei 238000, China
| | - Haiyan Wang
- Water Environment Research Center, College of Chemistry and Material Engineering, Chaohu University, Hefei 238000, China
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4
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Sasikumar K, Rajamanikandan R, Ju H. Nitrogen- and Sulfur-Codoped Strong Green Fluorescent Carbon Dots for the Highly Specific Quantification of Quercetin in Food Samples. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7686. [PMID: 38138829 PMCID: PMC10744681 DOI: 10.3390/ma16247686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Carbon dots (CDs) doped with heteroatoms have garnered significant interest due to their chemically modifiable luminescence properties. Herein, nitrogen- and sulfur-codoped carbon dots (NS-CDs) were successfully prepared using p-phenylenediamine and thioacetamide via a facile process. The as-developed NS-CDs had high photostability against photobleaching, good water dispersibility, and excitation-independent spectral emission properties due to the abundant amino and sulfur functional groups on their surface. The wine-red-colored NS-CDs exhibited strong green emission with a large Stokes shift of up to 125 nm upon the excitation wavelength of 375 nm, with a high quantum yield (QY) of 28%. The novel NS-CDs revealed excellent sensitivity for quercetin (QT) detection via the fluorescence quenching effect, with a low detection limit of 17.3 nM within the linear range of 0-29.7 μM. The fluorescence was quenched only when QT was brought near the NS-CDs. This QT-induced quenching occurred through the strong inner filter effect (IFE) and the complex bound state formed between the ground-state QT and excited-state NS-CDs. The quenching-based detection strategies also demonstrated good specificity for QT over various interferents (phenols, biomolecules, amino acids, metal ions, and flavonoids). Moreover, this approach could be effectively applied to the quantitative detection of QT (with good sensing recovery) in real food samples such as red wine and onion samples. The present work, consequently, suggests that NS-CDs may open the door to the sensitive and specific detection of QT in food samples in a cost-effective and straightforward manner.
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Affiliation(s)
| | | | - Heongkyu Ju
- Department of Physics, Gachon University, Seongnam-si 13120, Gyeonggi-do, Republic of Korea; (K.S.); (R.R.)
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Momeni S, Ramezani AM, Talebi S, Nabipour I. Synthesis of intrinsic fluorescent dopamine/quercetin copolymer nanoparticles and their application as a dual-mode assay for detection of quercetin. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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6
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Qu X, Gao C, Fu L, Chu Y, Wang JH, Qiu H, Chen J. Positively Charged Carbon Dots with Antibacterial and Antioxidant Dual Activities for Promoting Infected Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18608-18619. [PMID: 37032476 DOI: 10.1021/acsami.2c21839] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Bacterial infection and excess reactive oxygen species are key factors that lead to slow or substantially delayed wound healing. It is crucial to design and develop new nanomaterials with antibacterial and antioxidative capabilities for wound healing. Here, positively charged carbon dots (CDs) are rationally designed and synthesized from p-phenylenediamine and polyethyleneimine by a facile one-pot solvothermal method, which show good biocompatibility in in vitro cytotoxicity, hemolysis assays, and in vivo toxicity evaluation. The positively charged CDs show superior antimicrobial effect against Staphylococcus aureus (S. aureus) at very low concentrations, reducing the risk of wound infection. At the same time, CDs with surface defects and unpaired electrons can effectively scavenge excess free radicals to reduce oxidative stress damage, accelerate wound inflammation-proliferation transition, and promote wound healing. The mouse model of skin infection demonstrates that CDs can effectively promote the wound healing of skin infection without obvious side effects by simply dropping or spraying onto the wound. We believe that the prepared CDs have satisfactory biocompatibility, antioxidant capacity, and excellent antibacterial activity and have great application potential in wound healing.
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Affiliation(s)
- Xiaoqing Qu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chenxi Gao
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Lei Fu
- State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, China
| | - Yuefeng Chu
- State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, China
| | - Jian-Hua Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jia Chen
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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7
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Ma Y, Ke X, Liu H, Pan J, Ji Z, Li S, Li J. Growth of carbon dots in nanoporous silica glasses for highly enhanced dual-wavelength emission. Phys Chem Chem Phys 2023; 25:1858-1862. [PMID: 36541090 DOI: 10.1039/d2cp05325j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Solid-state carbon dots (CDots) have great potential applications in photonics and optoelectronic devices due to their excellent optical properties, such as broad absorption bands, and tunable photoluminescence wavelengths. However, owing to the aggregation-induced quenching and thermal quenching effect, it is a challenge to achieve strong luminescent solid-state CDots with excellent thermal stability. Herein, solid-state CDots were designed and fabricated using a triple confinement nanoporous glass. The triple confinement in nanoporous glass by a highly rigid network, stable covalent bonding, and 3D spatial restriction efficiently inhibited the Föster resonance energy transfer of the CDots in the solid-state and highly confined the CDots in the nanopores and nanochannels of the nanoporous glass. The as-designed triple confined solid-state CDots exhibit dual emission wavelengths at 448 nm and 638 nm, 51 times enhanced photoluminescence intensity, and exceptional thermal stability up to 400 °C. This work provides design principles and a universal strategy to construct dual emission fluorescence materials with high photoluminescence intensity, and high thermal stability for promising applications.
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Affiliation(s)
- Yunxiu Ma
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China. .,Hubei Engineering Technology Research Center of Environmental Purification Materials, Institute of Materials Research and Engineering, Hubei University of Education, Wuhan, 430074, China
| | - Xianzhi Ke
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China.
| | - Haolin Liu
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China.
| | - Jinyang Pan
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China.
| | - Zijuan Ji
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China. .,Hubei Engineering Technology Research Center of Environmental Purification Materials, Institute of Materials Research and Engineering, Hubei University of Education, Wuhan, 430074, China
| | - Sha Li
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China. .,Hubei Engineering Technology Research Center of Environmental Purification Materials, Institute of Materials Research and Engineering, Hubei University of Education, Wuhan, 430074, China
| | - Jie Li
- School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, 430074, China. .,Hubei Engineering Technology Research Center of Environmental Purification Materials, Institute of Materials Research and Engineering, Hubei University of Education, Wuhan, 430074, China
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8
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Zhou LJ, Chi YT, Chen LS, Pei SC, Chai SQ. One-Step Synthesis of Si-Doped Carbon Dots with Antibacterial Activities. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222110214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Sousa DA, Ferreira LFV, Fedorov AA, do Rego AMB, Ferraria AM, Cruz AB, Berberan-Santos MN, Prata JV. Luminescent Carbon Dots from Wet Olive Pomace: Structural Insights, Photophysical Properties and Cytotoxicity. Molecules 2022; 27:molecules27196768. [PMID: 36235306 PMCID: PMC9573145 DOI: 10.3390/molecules27196768] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 02/05/2023] Open
Abstract
Carbon nanomaterials endowed with significant luminescence have been synthesized for the first time from an abundant, highly localized waste, the wet pomace (WP), a semi-solid by-product of industrial olive oil production. Synthetic efforts were undertaken to outshine the photoluminescence (PL) of carbon nanoparticles through a systematic search of the best reaction conditions to convert the waste biomass, mainly consisting in holocellulose, lignin and proteins, into carbon dots (CDs) by hydrothermal carbonization processes. Blue-emitting CDs with high fluorescence quantum yields were obtained. Using a comprehensive set of spectroscopic tools (FTIR, Raman, XPS, and 1H/13C NMR) in combination with steady-state and time-resolved fluorescence spectroscopy, a rational depiction of WP-CDs structures and their PL properties was reached. WP-CDs show the up-conversion of PL capabilities and negligible cytotoxicity against two mammalian cell lines (L929 and HeLa). Both properties are excellent indicators for their prospective application in biological imaging, biosensing, and dynamic therapies driven by light.
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Affiliation(s)
- Diogo A. Sousa
- Department of Chemical Engineering, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007 Lisbon, Portugal
- CQ-VR-Centro de Química-Vila Real, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Luís F. V. Ferreira
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Alexander A. Fedorov
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Ana M. B. do Rego
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Ana M. Ferraria
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Adriana B. Cruz
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Mário N. Berberan-Santos
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - José V. Prata
- Department of Chemical Engineering, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007 Lisbon, Portugal
- CQ-VR-Centro de Química-Vila Real, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
- Correspondence:
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Lai L, Huang X, Sun W, Chen X, Pei S, Chai S, Chen J. One-Step Synthesis of Carbon Quantum Dots with Antibacterial Activity Based on Andrographolide. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222100309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Montes C, Villamayor N, Villaseñor MJ, Rios A. Distinctive sensing nanotool for free and nanoencapsulated quercetin discrimination based on S,N co-doped graphene dots. Anal Chim Acta 2022; 1230:340406. [DOI: 10.1016/j.aca.2022.340406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/08/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022]
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Sawalha S, Assali M, Raddad M, Ghneem T, Sawalhi T, Almasri M, Zarour A, Misia G, Prato M, Silvestri A. Broad-Spectrum Antibacterial Activity of Synthesized Carbon Nanodots from d-Glucose. ACS APPLIED BIO MATERIALS 2022; 5:4860-4872. [PMID: 36100469 DOI: 10.1021/acsabm.2c00590] [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: 11/30/2022]
Abstract
Carbon nanodots, a class of carbon nano-allotropes, have been synthesized through different routes and methods from a wide range of precursors. The selected precursor, synthetic method, and conditions can strongly alter the physicochemical properties of the resulting material and their intended applications. Herein, carbon nanodots (CNDs) have been synthesized from d-glucose by combining pyrolysis and chemical oxidation methods. The effect of the pyrolysis temperature, equivalents of oxidizing agent, and refluxing time were studied on the product and quantum yield. In the optimum conditions (pyrolysis temperature of 300 °C, 4.41 equiv of H2O2, 90 min of reflux) CNDs were obtained with 40% and 3.6% of product and quantum yields, respectively. The obtained CNDs are negatively charged (ζ-potential = -32 mV), excellently dispersed in water, with average diameter of 2.2 nm. Furthermore, ammonium hydroxide (NH4OH) was introduced as dehydrating and/or passivation agent during CNDs synthesis resulting in significant improvement of both product and quantum yields of about 1.5 and 3.76-fold, respectively. The synthesized CNDs showed a broad spectrum of antibacterial activities toward different Gram-positive and Gram-negative bacteria strains. Both synthesized CNDs caused highly colony forming unit reduction (CFU), ranging from 98% to 99.99% for most of the tested bacterial strains. However, CNDs synthesized in the absence of NH4OH, due to a negatively charged surface enriched in oxygenated groups, performed better in zone inhibition and minimum inhibitory concentration. The elevated antibacterial activity of high-oxygen-containing carbon nanodots is directly correlated to their ROS formation ability.
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Affiliation(s)
- Shadi Sawalha
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Muna Raddad
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Tasneem Ghneem
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Tasneem Sawalhi
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Motasem Almasri
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Abdulraziq Zarour
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Giuseppe Misia
- Department of Chemical and Pharmaceutical Sciences, Universitá degli Studi di Trieste, Trieste, 34127, Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, Universitá degli Studi di Trieste, Trieste, 34127, Italy
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, 20014, Spain
| | - Alessandro Silvestri
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, 20014, Spain
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Alaş M, Doğan G, Yalcin MS, Ozdemir S, Genç R. Multicolor Emitting Carbon Dot-Reinforced PVA Composites as Edible Food Packaging Films and Coatings with Antimicrobial and UV-Blocking Properties. ACS OMEGA 2022; 7:29967-29983. [PMID: 36061643 PMCID: PMC9434783 DOI: 10.1021/acsomega.2c02984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Active food packaging has become attractive because of the possibility to provide a longer shelf-life by loading functional agents into the packages to maintain the quality of food products. Herein, photoluminescent and transparent polyvinyl alcohol (PVA)-based composites embedding multicolor fluorescent carbon dots (CD/PVA) were prepared by the solvent casting method. The prepared CDs emit a strong and stable fluorescence in solution while the CD/PVA composite films were transparent, flexible, and showed UV-blocking activity with a strong fluorescence emission. Blue color-emitting CDs showed the highest UV blockage at UVA (87.04%), UVB (87.04%), and UVC (92.22%) regions while PVA alone absorbed only less than 25% of the light in all UV regions. UV blockage capacity was shown to be decreased by half, in line with the emission color shift from blue to red. Thermal properties of the PVA film were improved by the addition of CDs to the polymer, and in vitro cell viability tests showed that none of the CDs were cytotoxic against the human lung fibroblast healthy cell line (MRC-F cells) when integrated into the PVA. The antimicrobial activity of CD/PVA nanofilms was qualitatively determined. The prepared films exhibited good antimicrobial activity against both Gram-positive and Gram-negative bacteria with mild antioxidant and metal chelating activity, and significant inhibition of biofilm formation with a strong link with emitted color and the concentration of the composites. Green- and red-emitting CD/PVA with the highest antimicrobial activity were then analyzed and compared with the plane PVA employing their effect on the shelf-life of strawberries as a model for perishable foods. Fresh strawberries dip coated with CD/PVA and PVA were monitored over time, and virtual evaluations showed that CDs/PVA film coating resulted in reduced weight and moisture loss and significantly inhibited the fungal growth and spoiling for over 6 days at RT and 12 days at fridge conditions maintaining the visual appearance and natural color of the fruit. The findings in this work indicated the potential of reported CD as non-cytotoxic, UV-blocking antimicrobial additives for the development of edible coatings and packages for their use in the food industry, as well as pharmaceutical and healthcare applications.
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Affiliation(s)
- Melis
Özge Alaş
- Department
of Chemical Engineering, Engineering Faculty, Mersin University, Mersin TR-33343, Turkey
| | - Gamze Doğan
- Faculty
of Engineering Department of Bioengineering, Izmir Institute of Technology, Urla-Izmir TR-35430, Turkey
| | - Mustafa Serkan Yalcin
- Department
of Chemistry and Chemical Processing Technologies, Technical Science
Vocational School, Mersin University, Mersin TR-33343, Yenisehir, Turkey
| | - Sadin Ozdemir
- Food
Processing Programme, Technical Science Vocational School, Mersin University, Mersin TR-33343, Yenisehir, Turkey
| | - Rükan Genç
- Department
of Chemical Engineering, Engineering Faculty, Mersin University, Mersin TR-33343, Turkey
- Nanotechnology
Research and Application Centre, Sabanci
University, Istanbul TR-34956, Turkey
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14
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Chandrasekaran P, Sivaraman G, Rasala S, Sethuraman MG, Kotla NG, Rochev Y. Quercetin conjugated fluorescent nitrogen-doped carbon dots for targeted cancer therapy application. SOFT MATTER 2022; 18:5645-5653. [PMID: 35861218 DOI: 10.1039/d2sm00747a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this work, we report the development of nitrogen-doped carbon dots (NDCDs) as a drug carrier using quercetin (QC) as a model drug for anti-cancer drug delivery application. NDCDs were prepared by a simple hydrothermal method using Luffa acutangula as a carbon source. The characterization of QC-NDCDs was done by UV-vis spectroscopy, fluorescence spectroscopy, zeta potential measurements, high-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Raman spectroscopy. The as-synthesized NDCDs have a small particle size with hydroxyl and nitrogen-containing groups (pyridinic and amide groups), enhancing the fluorescence properties, and were obtained in a good quantum yield (14%). Furthermore, the in vitro alamarBlue® assay revealed that the NDCDs-QC conjugate was nontoxic to colon cancer cells. This NDCDs-QC conjugate is able to kill cancer cells in the NDCDs-QC form compared to free QC as confirmed by in vitro MTT assay results. Thus, the developed NDCDs conjugate can be used as a promising drug delivery and bio-imaging vehicle in cancer therapy.
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Affiliation(s)
- Pitchai Chandrasekaran
- Department of Chemistry, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, 624302, Dindigul, Tamilnadu, India.
| | - Gandhi Sivaraman
- Department of Chemistry, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, 624302, Dindigul, Tamilnadu, India.
| | - Swetha Rasala
- CÚRAM SFI Research Centre for Medical Devices, National University of Ireland, Galway, H92 W2TY, Ireland.
| | - Mathur Gopalakrishnan Sethuraman
- Department of Chemistry, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, 624302, Dindigul, Tamilnadu, India.
| | - Niranjan G Kotla
- CÚRAM SFI Research Centre for Medical Devices, National University of Ireland, Galway, H92 W2TY, Ireland.
| | - Yury Rochev
- CÚRAM SFI Research Centre for Medical Devices, National University of Ireland, Galway, H92 W2TY, Ireland.
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15
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Hu J, Sun Y, Aryee AA, Qu L, Zhang K, Li Z. Mechanisms for carbon dots-based chemosensing, biosensing, and bioimaging: A review. Anal Chim Acta 2022; 1209:338885. [PMID: 35569838 DOI: 10.1016/j.aca.2021.338885] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 01/04/2023]
Abstract
Due to the favorable biocompatibility, photostability and fluorescence emissions, carbon dots (CDs) are being widely investigated as fluorescent probes. Current CD-based fluorescent probe designs depend largely on conventional fluorescence sensing mechanisms, for e.g. the inner filter effect, photoinduced electron transfer, and Förster resonance energy transfer. Although these mechanisms have been successful, it is still desirable to introduce new sensing mechanisms. In recent years, emerging mechanisms such as aggregation-induced emission, hydrogen-bond induced emission, and intramolecular charge transfer have been developed for CD-based probes. This review summarizes both conventional and emerging mechanisms, and discuss CDs in the context of chemosensing, biosensing, and bioimaging. We provide an outlook for several other mechanisms such as CN isomerization, the short-wavelength inner filter technique, excited-state intramolecular proton transfer, and twisted intramolecular charge transfer, which have been applied to organic fluorescent probes design but not as much in CD-based sensing systems. We envision that this review will provide insights that inspire further development of CD-based fluorescent probes as for biological applications.
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Affiliation(s)
- Jingyu Hu
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Yuanqiang Sun
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Aaron Albert Aryee
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Lingbo Qu
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Ke Zhang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Zhaohui Li
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
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16
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Sviridova E, Barras A, Addad A, Plotnikov E, Di Martino A, Deresmes D, Nikiforova K, Trusova M, Szunerits S, Guselnikova O, Postnikov P, Boukherroub R. Surface modification of carbon dots with tetraalkylammonium moieties for fine tuning their antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112697. [DOI: 10.1016/j.msec.2022.112697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/24/2022] [Accepted: 02/01/2022] [Indexed: 10/19/2022]
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17
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Cui Y, Su A, Feng J, Dong W, Li J, Wang H, Ni X, Jiang Y. Development of silica molecularly imprinted polymer on carbon dots as a fluorescence probe for selective and sensitive determination of cetirizine in saliva and urine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120293. [PMID: 34455374 DOI: 10.1016/j.saa.2021.120293] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/09/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
A fluorescence probe based on carbon dots (CDs) coated with silica molecularly imprinted polymer (MIPs) was synthesized for selective and sensitive determination of cetirizine (CTZ). Green source carbon dots were firstly derived from orange peels through a microwave method, and had the merits of eco-friendly and low toxicity. Then a thin silica film was formed on the surface of CDs by reverse microemulsion technique, and molecularly imprinted polymer coated on silica-carbon dots. In this scene, CTZ, 3-aminopropyltriethoxysilane (APTES) and tetraethoxysilane (TEOS) were employed as a template, a functional monomer and cross linker, respectively. The obtained CDs-MIPs can selectively bind CTZ through the specific interaction between recognition sites and template, and obey photoinduced electron transfer fluorescence quenching mechanism. Fluorescence dropped linearly in the range of 0.5-500 ng mL-1, under the optimal conditions, with a detection limit of 0.41 ng mL-1. Furthermore, the proposed method was successfully intended for the determination of trace CTZ in human saliva and urine samples without the interference of other molecules and ions. And recoveries ranged from 95.8% to 99.8% with relative standard deviation less than 3.0%.
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Affiliation(s)
- Yixuan Cui
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Aoxuan Su
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Jingying Feng
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Weichong Dong
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province 050000, China
| | - Junmei Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Huan Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Xiaoyu Ni
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China
| | - Ye Jiang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei Province 050017, China.
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18
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Effect of addition of carbon dots to the frying oils on oxidative stabilities and quality changes of fried meatballs during refrigerated storage. Meat Sci 2021; 185:108715. [PMID: 34839193 DOI: 10.1016/j.meatsci.2021.108715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 06/23/2021] [Accepted: 11/15/2021] [Indexed: 11/21/2022]
Abstract
Carbon dots (CDs) were prepared and noted to exhibit potent scavenging activities against DPPH·, ·OH, and O2·- radicals. Addition of CDs to frying oil as a means to improve oxidative stability and minimize quality changes of fried meatballs during refrigerated storage was investigated in comparison with the use of tert-butylhydroquinone (TBHQ) and carnosic acid (CA). Compared with the control sample, 0.05% CDs significantly reduced thiobarbituric acid reactive substances value, carbonyl and total volatile basic nitrogen contents of fried meatballs. Both lipid and protein oxidation inhibition capabilities of CDs were higher than those of 0.05% CA but lower than those of 0.02% TBHQ. Total sensory score of sample with CDs (7.1 ± 0.06) was significantly higher than those of the control (4.7 ± 0.03) and sample with TBHQ (6.4 ± 0.04). CDs could delay oxidation of fried meatballs during refrigerated storage and can well serve as an alternative antioxidant.
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19
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Zhao L, Zhang M, Wang H, Devahastin S. Effects of carbon dots in combination with rosemary-inspired carnosic acid on oxidative stability of deep frying oils. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.107968] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Fan Y, Yao J, Huang M, Linghu C, Guo J, Li Y. Non-conjugated polymer dots for fluorometric and colorimetric dual-mode detection of quercetin. Food Chem 2021; 359:129962. [PMID: 33945984 DOI: 10.1016/j.foodchem.2021.129962] [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: 02/04/2021] [Revised: 04/21/2021] [Accepted: 04/25/2021] [Indexed: 01/28/2023]
Abstract
Due to the biochemical and pharmacological activities, the convenient and effective detection of quercetin (Qc) is very important for biochemistry, pharmaceutical chemistry and clinical medicine. A kind of non-conjugated polymer dots (NCPDs) was used as a versatile and sensitive dual-mode optical output for Qc detection, which was synthesized by hyperbranched poly(ethylenimine) (PEI) and l-threonine via environmentallyfriendly way. The dual-mode method proposed in this work had high sensitivity and definiteselectivity for Qc detection. Additionally, it was convenient for the naked eyes to observe the fluorescence brightness and color change.
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Affiliation(s)
- Yu Fan
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Jie Yao
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Mengke Huang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chenxi Linghu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jinlin Guo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; College of Pharmacy, Key Laboratory of Standardization of Chinese Medicine, Ministry of Education Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yang Li
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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21
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Luo Q, Qin K, Liu F, Zheng X, Ding Y, Zhang C, Xu M, Liu X, Wei Y. Carbon dots derived from kanamycin sulfate with antibacterial activity and selectivity for Cr 6+ detection. Analyst 2021; 146:1965-1972. [PMID: 33496685 DOI: 10.1039/d0an02352c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Among antibacterial nanomaterials, carbon dots (CDs) have attracted much attention because of their unique physical and chemical properties and good biosafety. In this study, kanamycin sulfate (Kan), a broad-spectrum antibiotic, was used to synthesize novel carbon dots (CDs-Kan) by a one-step hydrothermal method. CDs-Kan showed good inhibitory effects on Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Further, scanning electron microscopy revealed that treatment with CDs-Kan and Kan resulted in the same phenomena. In particular, the morphologies of S. aureus cells treated with CDs-Kan and Kan became smaller and irregular, whereas the surfaces of E. coli cells protruded and formed vesicles. These results indicated that CDs-Kan was shown to retain the good antibacterial activity of Kan as well as its main bactericidal functional groups, namely, the amino sugar and amino cyclic alcohol, We refer to this phenomenon as the "preservation property". We also found that CDs-Kan has good biocompatibility and nontoxic properties. Moreover, CDs-Kan was successfully applied to the biological imaging of fungi and plant cells. In addition, CDs-Kan could be used as a fluorescent probe for the quick, sensitive, and selective detection of Cr6+. Therefore, CDs-Kan not only retained the good bacteriostatic properties of Kan but also expanded its application in bioimaging and biosensors.
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Affiliation(s)
- Qian Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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22
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Knoblauch R, Harvey A, Ra E, Greenberg KM, Lau J, Hawkins E, Geddes CD. Antimicrobial carbon nanodots: photodynamic inactivation and dark antimicrobial effects on bacteria by brominated carbon nanodots. NANOSCALE 2021; 13:85-99. [PMID: 33211048 PMCID: PMC7796955 DOI: 10.1039/d0nr06842j] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The evolving threat of antibiotic resistance development in pathogenic bacteria necessitates the continued cultivation of new technologies and agents to mitigate associated negative health impacts globally. It is no surprise that infection prevention and control are cited by the Centers for Disease Control and Prevention (CDC) as two routes for combating this dangerous trend. One technology that has gained great research interest is antimicrobial photodynamic inactivation of bacteria, or APDI. This technique permits controllable activation of antimicrobial effects by combining specific light excitation with the photodynamic properties of a photosensitizer; when activated, the photosensitizer generates reactive oxygen species (ROS) from molecular oxygen via either a type I (electron transfer) or type II (energy transfer) pathway. These species subsequently inflict oxidative damage on nearby bacteria, resulting in suppressed growth and cell death. To date, small molecule photosensitizers have been developed, yet the scalability of these as widespread sterilization agents is limited due to complex and costly synthetic procedures. Herein we report the use of brominated carbon nanodots (BrCND) as new photosensitizers for APDI. These combustion byproducts are easily and inexpensively collected; incorporation of bromine into the nanodot permits photosensitization effects that are not inherent to the carbon nanodot structure alone-a consequence of triplet character gained by the heavy atom effect. BrCND demonstrate both type I and type II photosensitization under UV-A irradiation, and furthermore are shown to have significant antimicrobial effects against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus and Listeria monocytogenes as well. A mechanism of "dark" toxicity is additionally reported; the pH-triggered release of reactive nitrogen species is detected from a carbon nanodot structure for the first time. The results described present the BrCND structure as a competitive new antimicrobial agent for controllable sterilization of bacteria.
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Affiliation(s)
- Rachael Knoblauch
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 701 East Pratt Street, Baltimore, Maryland 21202, USA.
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23
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Gao M, He M, Xing R, Wang X, Wang Z. Borate-modified carbon dots as a probe for quercetin in plants. Analyst 2021; 146:590-596. [DOI: 10.1039/d0an01898h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Schematic presentation of the PBA-CDs enhancing the fluorescence of quercetin in contrast to N-CDs.
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Affiliation(s)
- Mei Gao
- School of Chemistry Sciences
- University of Chinese Academy of Sciences
- Beijing
- China
| | - Man He
- School of Chemistry Sciences
- University of Chinese Academy of Sciences
- Beijing
- China
| | - Rang Xing
- School of Chemistry Sciences
- University of Chinese Academy of Sciences
- Beijing
- China
| | - Xuefei Wang
- School of Chemistry Sciences
- University of Chinese Academy of Sciences
- Beijing
- China
| | - Zhuo Wang
- State Key Laboratory of Chemical Resource Engineering
- College of Science
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
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24
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Zhao L, Zhang M, Bhandari B, Bai B. Microbial and quality improvement of boiled gansi dish using carbon dots combined with radio frequency treatment. Int J Food Microbiol 2020; 334:108835. [PMID: 32898829 DOI: 10.1016/j.ijfoodmicro.2020.108835] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/31/2020] [Accepted: 08/17/2020] [Indexed: 11/19/2022]
Abstract
Use of carbon dots (CDs) combined with radio frequency (RF) was applied to pasteurize and reduce the microorganism population in order to improve the quality of boiled gansi dish. CDs were prepared from banana using hydrothermal method, and characterized by using TEM, XRD and FTIR. The minimal inhibitory concentration (MIC) test showed CDs can efficiently inactivate Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Bacillus subtilis (B. subtilis). This study also evaluated the effectiveness of five treatments, including CDs alone, CDs combined RF (CDRF) heating for different time (8 min, 12 min, and 16 min), and high pressure steam (HPS) sterilization of boiled gansi dish inoculated with B. subtilis. After CDRF treated for 8 min, 12 min, and 16 min, the center temperature of samples reached to 78.92, 87.77 and 93.82 °C, and the colony forming units (CFU) of B. subtilis reduced by 2.13, 3.62, and 4.63 log, respectively. Samples with CDRF12 treatment, exhibited better product quality as evidenced by reduced loss of texture, flavor, and sensory as compared with HPS sample. The results indicated that CDRF treatment has a great potential to produce packaged boiled gansi dish with high product quality.
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Affiliation(s)
- Linlin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China
| | - Min Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China; Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China.
| | - Bhesh Bhandari
- School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD, Australia
| | - Baosong Bai
- Yechun Food Production and Distribution Co., Ltd., 225000 Yangzhou, Jiangsu, China
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25
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Apak R, Çekiç SD, Üzer A, Çapanoğlu E, Çelik SE, Bener M, Can Z, Durmazel S. Colorimetric sensors and nanoprobes for characterizing antioxidant and energetic substances. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5266-5321. [PMID: 33170182 DOI: 10.1039/d0ay01521k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of analytical techniques for antioxidant compounds is important, because antioxidants that can inactivate reactive species and radicals are health-beneficial compounds, also used in the preservation of food and protection of almost every kind of organic substance from oxidation. Energetic substances include explosives, pyrotechnics, propellants and fuels, and their determination at bulk/trace levels is important for the safety and well-being of modern societies exposed to various security threats. Most of the time, in field/on site detection of these important analytes necessitates the use of colorimetric sensors and probes enabling naked-eye detection, or low-cost and easy-to-use fluorometric sensors. The use of nanosensors brings important advantages to this field of analytical chemistry due to their various physico-chemical advantages of increased surface area, surface plasmon resonance absorption of noble metal nanoparticles, and superior enzyme-mimic catalytic properties. Thus, this critical review focuses on the design strategies for colorimetric sensors and nanoprobes in characterizing antioxidant and energetic substances. In this regard, the main themes and properties in optical sensor design are defined and classified. Nanomaterial-based optical sensors/probes are discussed with respect to their mechanisms of operation, namely formation and growth of noble metal nanoparticles, their aggregation and disaggregation, displacement of active constituents by complexation or electrostatic interaction, miscellaneous mechanisms, and the choice of metallic oxide nanoparticles taking part in such formulations.
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Affiliation(s)
- Reşat Apak
- Analytical Chemistry Division, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Avcilar 34320, Istanbul, Turkey.
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26
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Qian J, Kai G. Application of micro/nanomaterials in adsorption and sensing of active ingredients in traditional Chinese medicine. J Pharm Biomed Anal 2020; 190:113548. [PMID: 32861928 DOI: 10.1016/j.jpba.2020.113548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/01/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022]
Abstract
Traditional Chinese medicine (TCM) has been widely applied for the prevention and cure of various diseases for centuries. Ingredient with pharmacological activity is the key to the application of TCM. Hence, it is of significance to separate and detect active ingredients in TCM effectively. Micro/nanomaterial is the promising candidate for adsorption and sensing due to its unique physical and chemical properties. For years, many efforts have been made to develop functional micro/nanomaterials to realize the effective adsorption or sensing of bioactive compounds in TCM. In this review, we discussed recent progresses in the application of various functional micro/nanomaterials for adsorption or detection (electrochemical detection, fluorescent detection, and colorimetric detection) of active ingredients. Based on the kind of matrix materials, micro/nano-adsorbents or sensors can be classified into following categories: metal-based micro/nanomaterials, porous materials, carbon-based materials, graphene/graphite-liked micro/nanomaterials and hybrid micro/nanomaterials.
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Affiliation(s)
- Jun Qian
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Guoyin Kai
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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27
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Sun B, Wu F, Zhang Q, Chu X, Wang Z, Huang X, Li J, Yao C, Zhou N, Shen J. Insight into the effect of particle size distribution differences on the antibacterial activity of carbon dots. J Colloid Interface Sci 2020; 584:505-519. [PMID: 33129160 DOI: 10.1016/j.jcis.2020.10.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/04/2020] [Accepted: 10/05/2020] [Indexed: 02/06/2023]
Abstract
Carbon dots (CDs) have a profound effect on elimination of bacteria, fungi, and viruses, but the lack of an exact mechanism to interact with bacterial cells limits their development. Herein, we separated the CDs derived from chlorhexidine gluconate into three groups with uniformly small-scale, middle-scale, and large-scale particle sizes by using different molecular weight cut-off membranes. These positively charged particles exhibit significant antibacterial activity against the Gram-negative bacteria Escherichia coli and the Gram-positive bacteria Staphylococcus aureus; they can cause an increase in bacterial cell permeability, synergistic destabilization, and broken integrity of the plasma membrane. Impressively, we found that antibacterial activity increases as the size of the CDs decreases. This phenomenon may stem from the differences in cellular uptake and distribution of CDs in the plasma membrane or restriction between the polar functional group and DNA molecule. Our study of the size effect as a target may improve the understanding of killing microorganisms by antibacterial CD drugs.
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Affiliation(s)
- Baohong Sun
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fan Wu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qicheng Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiaohong Chu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zhixuan Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xinrong Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Jie Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Cheng Yao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ninglin Zhou
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Jian Shen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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28
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Selim MS, Mo PJ, Hao Z, Fatthallah NA, Chen X. Blade-like structure of graphene oxide sheets decorated with cuprous oxide and silicon carbide nanocomposites as bactericidal materials. J Colloid Interface Sci 2020; 578:698-709. [DOI: 10.1016/j.jcis.2020.06.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/07/2020] [Accepted: 06/11/2020] [Indexed: 12/19/2022]
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29
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Knoblauch R, Geddes CD. Carbon Nanodots in Photodynamic Antimicrobial Therapy: A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4004. [PMID: 32927673 PMCID: PMC7559411 DOI: 10.3390/ma13184004] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 02/08/2023]
Abstract
Antibiotic resistance development in bacteria is an ever-increasing global health concern as new resistant strains and/or resistance mechanisms emerge each day, out-pacing the discovery of novel antibiotics. Increasingly, research focuses on alternate techniques, such as antimicrobial photodynamic therapy (APDT) or photocatalytic disinfection, to combat pathogens even before infection occurs. Small molecule "photosensitizers" have been developed to date for this application, using light energy to inflict damage and death on nearby pathogens via the generation of reactive oxygen species (ROS). These molecular agents are frequently limited in widespread application by synthetic expense and complexity. Carbon dots, or fluorescent, quasi-spherical nanoparticle structures, provide an inexpensive and "green" solution for a new class of APDT photosensitizers. To date, reviews have examined the overall antimicrobial properties of carbon dot structures. Herein we provide a focused review on the recent progress for carbon nanodots in photodynamic disinfection, highlighting select studies of carbon dots as intrinsic photosensitizers, structural tuning strategies for optimization, and their use in hybrid disinfection systems and materials. Limitations and challenges are also discussed, and contemporary experimental strategies presented. This review provides a focused foundation for which APDT using carbon dots may be expanded in future research, ultimately on a global scale.
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Affiliation(s)
| | - Chris D. Geddes
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, MD 21202, USA;
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Sharma N, Das GS, Yun K. Green synthesis of multipurpose carbon quantum dots from red cabbage and estimation of their antioxidant potential and bio-labeling activity. Appl Microbiol Biotechnol 2020; 104:7187-7200. [PMID: 32572575 DOI: 10.1007/s00253-020-10726-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 05/28/2020] [Accepted: 06/07/2020] [Indexed: 01/07/2023]
Abstract
We present a green synthesis of fluorescent carbon quantum dots (CQDs) by using red cabbage (rc) and a one-step hydrothermal approach. The rcCQDs were characterized by various techniques such as UV-visible spectroscopy, transmission electron microscopy (TEM), high-resolution TEM, Fourier-transform infrared spectroscopy, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy. The synthesized rcCQDs exhibited an average size of 3 nm, measured by TEM, blue fluorescence, and a quantum yield of 8.3%. The highest emission band was observed at approximately 402 nm when excited at 330 nm. The rcCQDs exhibited strong antioxidant activities by scavenging 61, 56, and 91% against 2, 2-diphenyl-1-picrylhydrazyl, hydroxyl, and potassium permanganate radicals, respectively. The scavenging activity of rcCQDs was comparable with that of standard antioxidant L-ascorbic acid. Cell Counting Kit (CCK)-8 assay depicted superior bio-compatibility and negligible cytotoxicity of rcCQDs on SH-SY5Y neuroblastoma cells. They were used as a fluorescent probe for bio-labeling of Escherichia coli and Staphylococcus aureus. The viabilities of the labeled bacterial cells were analyzed by AFM and UV-visible spectroscopy. Furthermore, the rcCQDs were utilized as a fluorescent ink, an alternative to pens, and maybe suitable for paints and varnish agents. This study provides detailed mechanistic insights into the antioxidant activity of as-synthesized rcCQDs, which suggest the practical applicability of CQDs for bio-medical applications. Key points • Carbon quantum dots were prepared from red cabbage using the hydrothermal method. • The scavenging activity of rcCQDs was evaluated for DPPH, OH, and KMnO4radicals. • The rcCQDs were used for the labeling of foodborne bacteria. • The rcCQDs could be utilized as fluorescent ink. Graphical abstract Schematic representation of CQDs prepared from red cabbage (rc) with multifunctional applications.
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Affiliation(s)
- Neha Sharma
- Department of Bio-nanotechnology, Gachon University, Gyeonggi-do, 13120, Republic of Korea
| | - Gouri Sankar Das
- Department of Bio-nanotechnology, Gachon University, Gyeonggi-do, 13120, Republic of Korea
| | - Kyusik Yun
- Department of Bio-nanotechnology, Gachon University, Gyeonggi-do, 13120, Republic of Korea.
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Naik GG, Alam MB, Pandey V, Dubey PK, Parmar AS, Sahu AN. Pink Fluorescent Carbon Dots Derived from the Phytomedicine for Breast Cancer Cell Imaging. ChemistrySelect 2020. [DOI: 10.1002/slct.202001613] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gaurav Gopal Naik
- Department of Pharmaceutical Engineering and TechnologyIndian Institute of Technology (BHU) Varanasi Varanasi India 221005
| | - Md Bayazeed Alam
- Department of PhysicsIndian Institute of Technology (BHU) Varanasi Varanasi India 221005
| | - Vivek Pandey
- Centre for Genetics Disorders Faculty of ScienceBanaras Hindu University Varanasi India 221005
| | - Pawan Kumar Dubey
- Centre for Genetics Disorders Faculty of ScienceBanaras Hindu University Varanasi India 221005
| | - Avanish S. Parmar
- Department of PhysicsIndian Institute of Technology (BHU) Varanasi Varanasi India 221005
| | - Alakh N. Sahu
- Department of Pharmaceutical Engineering and TechnologyIndian Institute of Technology (BHU) Varanasi Varanasi India 221005
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Xue R, Fu L, Dong S, Yang H, Zhou D. Promoting Chlorella photosynthesis and bioresource production using directionally prepared carbon dots with tunable emission. J Colloid Interface Sci 2020; 569:195-203. [DOI: 10.1016/j.jcis.2020.02.080] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/09/2020] [Accepted: 02/19/2020] [Indexed: 11/27/2022]
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Du F, Cheng Z, Kremer M, Liu Y, Wang X, Shuang S, Dong C. A label-free multifunctional nanosensor based on N-doped carbon nanodots for vitamin B 12 and Co 2+ detection, and bioimaging in living cells and zebrafish. J Mater Chem B 2020; 8:5089-5095. [PMID: 32406457 DOI: 10.1039/d0tb00443j] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multifunctional N-doped carbon nanodots (N-CNDs) with a fluorescence (FL) quantum yield (QY) of 13.6% have been synthesized via a facile one-step hydrothermal process using Artemisia annua and 1,2-ethylenediamine as precursors. As-prepared N-CNDs showed excellent FL properties and were developed as a multifunctional sensing platform for vitamin B12 (VB12) and Co2+ determination, and bioimaging in living cells and zebrafish. The FL of N-CNDs is quenched efficiently in the presence of VB12 on the basis of the inner filter effect (IFE) or Co2+ by static quenching, respectively. EDTA as a masking agent enables Co2+ to be effectively eliminated and N-CNDs were used to selectively detect VB12 in the presence of both VB12 and Co2+. The present FL nanosensor can detect VB12 and Co2+ in the linear ranges of 0.5-35 μM and 2.5-25 μM with the corresponding detection limits of 47.4 nM and 230.5 nM, respectively. The study proved that the determination of Co2+ was based on the static quenching to form a complex between the amino group of N-CNDs and Co2+. Inspired by these outstanding properties, practical applications of this nanosensor for the detection of VB12 in actual samples (human serum, egg yolk, VB12 tablets and VB12 injection) and Co2+ in water samples were further verified with satisfactory results. The as-constructed N-CNDs have negligible toxicity and good biocompatibility, which facilitates utilization of N-CNDs in bioimaging of A549 cells and zebrafish, and sensing VB12 in living cells.
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Affiliation(s)
- Fangfang Du
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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