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Sobhanan J, Rival JV, Anas A, Sidharth Shibu E, Takano Y, Biju V. Luminescent Quantum Dots: Synthesis, Optical Properties, Bioimaging and Toxicity. Adv Drug Deliv Rev 2023; 197:114830. [PMID: 37086917 DOI: 10.1016/j.addr.2023.114830] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/26/2023] [Accepted: 04/14/2023] [Indexed: 04/24/2023]
Abstract
Luminescent nanomaterials such as semiconductor nanocrystals (NCs) and quantum dots (QDs) attract much attention to optical detectors, LEDs, photovoltaics, displays, biosensing, and bioimaging. These materials include metal chalcogenide QDs and metal halide perovskite NCs. Since the introduction of cadmium chalcogenide QDs to biolabeling and bioimaging, various metal nanoparticles (NPs), atomically precise metal nanoclusters, carbon QDs, graphene QDs, silicon QDs, and other chalcogenide QDs have been infiltrating the nano-bio interface as imaging and therapeutic agents. Nanobioconjugates prepared from luminescent QDs form a new class of imaging probes for cellular and in vivo imaging with single-molecule, super-resolution, and 3D resolutions. Surface modified and bioconjugated core-only and core-shell QDs of metal chalcogenides (MX; M = Cd/Pb/Hg/Ag, and X = S/Se/Te,), binary metal chalcogenides (MInX2; M = Cu/Ag, and X = S/Se/Te), indium compounds (InAs and InP), metal NPs (Ag, Au, and Pt), pure or mixed precision nanoclusters (Ag, Au, Pt), carbon nanomaterials (graphene QDs, graphene nanosheets, carbon NPs, and nanodiamond), silica NPs, silicon QDs, etc. have become prevalent in biosensing, bioimaging, and phototherapy. While heavy metal-based QDs are limited to in vitro bioanalysis or clinical testing due to their potential metal ion-induced toxicity, carbon (nanodiamond and graphene) and silicon QDs, gold and silica nanoparticles, and metal nanoclusters continue their in vivo voyage towards clinical imaging and therapeutic applications. This review summarizes the synthesis, chemical modifications, optical properties, and bioimaging applications of semiconductor QDs with particular references to metal chalcogenide QDs and bimetallic chalcogenide QDs. Also, this review highlights the toxicity and pharmacokinetics of QD bioconjugates.
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Affiliation(s)
- Jeladhara Sobhanan
- Graduate School of Environmental Science, Hokkaido University, N10 W5, Sapporo, Hokkaido 060-0810, Japan; Center for Adapting Flaws into Features, Department of Chemistry, Rice University, 6100 Main St., Houston, TX 77005, USA
| | - Jose V Rival
- Smart Materials Lab, Department of Nanoscience and Technology, University of Calicut, Kerala, India
| | - Abdulaziz Anas
- CSIR-National Institute of Oceanography, Regional Centre Kochi, Kerala 682 018, India.
| | | | - Yuta Takano
- Graduate School of Environmental Science, Hokkaido University, N10 W5, Sapporo, Hokkaido 060-0810, Japan; Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan
| | - Vasudevanpillai Biju
- Graduate School of Environmental Science, Hokkaido University, N10 W5, Sapporo, Hokkaido 060-0810, Japan; Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan.
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Pant A, Kaur T, Sharma T, Singh J, Suttee A, Barnwal RP, Kaur IP, Singh G, Singh B. A glass matrices-assisted quantum dots-based biosensor for selective capturing and detection of Escherichia coli. JOURNAL OF WATER AND HEALTH 2022; 20:1673-1687. [PMID: 36573672 DOI: 10.2166/wh.2022.293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Bacterial contamination of water and food is a grave health concern rendering humans quite vulnerable to disease(s), and proving, at times, fatal too. Exploration of the novel diagnostic tools is, accordingly, highly called for to ensure rapid detection of the pathogenic bacteria, particularly Escherichia coli. The current manuscript, accordingly, reports the use of silane-functionalized glass matrices and antibody-conjugated cadmium telluride (CdTe) quantum dots (QDs) for efficient detection of E. coli. Synthesis of QDs (size: 5.4-6.8 nm) using mercaptopropionic acid (MPA) stabilizer yielded stable photoluminescence (∼62%), corroborating superior fluorescent characteristics. A test sample, when added to antibody-conjugated matrices, followed by antibody-conjugated CdTe-MPA QDs, formed a pathogen-antibody QDs complex. The latter, during confocal microscopy, demonstrated rapid detection of the selectively captured pathogenic bacteria (10 microorganism cells/10 μL) with enhanced sensitivity and specificity. The work, overall, encompasses establishment and design of an innovative detection platform in microbial diagnostics for rapid capturing of pathogens in water and food samples.
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Affiliation(s)
- Anjali Pant
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Taranvir Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Teenu Sharma
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 140401
| | - Joga Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Ashish Suttee
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | | | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Gurpal Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014 ; Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 140401
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Molaei M, Farahmandzadeh F, Hemmati R. Mercury (Hg 2+) Detection in Aqueous Media, Photocatalyst, and Antibacterial Applications of CdTe/ZnS Quantum Dots. J Fluoresc 2022; 32:2129-2137. [PMID: 35947332 DOI: 10.1007/s10895-022-03013-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/04/2022] [Indexed: 11/29/2022]
Abstract
In the present work, CdTe/ZnS high luminescence quantum dots (QDs) were synthesized by a facile, fast, one-pot, and room temperature photochemical method. Synthesized QDs were characterized by different structural and optical analyses such as X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Fourier transform-infrared spectroscopy (FT-IR), Raman, photoluminescence (PL) and UV-visible (UV-vis) spectroscopies. The results confirmed the successful growth of the ZnS shell and formation of CdTe/ZnS core/shell structure. CdTe/ZnS prepared QDs indicated a PL quantum yield of about 51%. These high luminescence QDs were used for detection of Hg2+ ions in aqueous media, as catalyst for photodegradation of different organic dyes, and as antibacterial material for the inhibition of bacterial growth. PL intensity of the CdTe/ZnS QDs was completely quenched after addition of 1 m molar Hg2+in to the media. Photocatalyst activity of CdTe/ZnS QDs was studied by rhodamine b, methylene blue, and methylene orange as organic dyes under both the sun and UV illuminations, and results showed that CdTe/ZnS QDs had the best photocatalyst activity for methylene blue degradation under UV irradiation and radical scavenger results indicated that electrons have a main role in photodegradation of methylene blue dye by CdTe/ZnS QDs under UV illumination. Antibacterial effects of CdTe/ZnS QDs evaluated by Minimum Inhibitory Concentration (MIC), and Minimum Bactericidal Concentration (MBC) methods against two strains of bacteria. The results of the antibacterial test showed that CdTe/ZnS could inhibit bacterial growth in Bacillus cereus (Gram-positive) and Escherichia coli (Gram-negative G) bacteria.
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Affiliation(s)
- Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-E-Asr University, Rafsanjan, Iran.
| | | | - Rohullah Hemmati
- Department of Biology, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
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Thi Thu Huong T, Loan NT, Ung TDT, Tung NT, Han H, Liem NQ. Systematic synthesis of different-sized AgInS 2/GaS xnanocrystals for emitting the strong and narrow excitonic luminescence. NANOTECHNOLOGY 2022; 33:355704. [PMID: 35620843 DOI: 10.1088/1361-6528/ac73e9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
This paper presents for the first time the systematic synthesis of AgInS2(AIS) nanocrystals (NCs) with different sizes of 2.6-6.8 nm just by controlling only the reaction temperature. The synthesis of AIS core NCs was carried out in 2 steps: (i) synthesis of Ag2S NCs and then (ii) partial exchange of Ag+with In3+in the template Ag2S NCs. For step (i), Ag2S NCs of different sizes were synthesized by reaction of the Ag and S precursors at different temperatures of 30 °C to 130 °C, for the same reaction time of 30 min. For step (ii), AIS NCs were created by the exchange of Ag+with In3+at 120 °C for 60 min. Finally, GaSxwas shelled on AIS core NCs to produce the AgInS2/GaSxcore/shell structures. The synthesized AIS/GaSxNCs demonstrate the clear excitonic absorptions and strong, narrow excitonic luminescence peaking at 530-606 nm depending on the size of AIS core NCs.
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Affiliation(s)
- Tran Thi Thu Huong
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thu Loan
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Thi Dieu Thuy Ung
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thanh Tung
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - HyukSu Han
- Department of Energy Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Nguyen Quang Liem
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Dehghan S, Molaei M, Alehdaghi H, Karimipour M. High luminescence of CdTe/CdSe/CdS core/shell/shell QDs: synthesis via a simple photochemical approach and gamma dosimetry application. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2067988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sima Dehghan
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Hassan Alehdaghi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Masoud Karimipour
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
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Kharbikar BN, Chendke GS, Desai TA. Modulating the foreign body response of implants for diabetes treatment. Adv Drug Deliv Rev 2021; 174:87-113. [PMID: 33484736 PMCID: PMC8217111 DOI: 10.1016/j.addr.2021.01.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/30/2020] [Accepted: 01/10/2021] [Indexed: 02/06/2023]
Abstract
Diabetes Mellitus is a group of diseases characterized by high blood glucose levels due to patients' inability to produce sufficient insulin. Current interventions often require implants that can detect and correct high blood glucose levels with minimal patient intervention. However, these implantable technologies have not reached their full potential in vivo due to the foreign body response and subsequent development of fibrosis. Therefore, for long-term function of implants, modulating the initial immune response is crucial in preventing the activation and progression of the immune cascade. This review discusses the different molecular mechanisms and cellular interactions involved in the activation and progression of foreign body response (FBR) and fibrosis, specifically for implants used in diabetes. We also highlight the various strategies and techniques that have been used for immunomodulation and prevention of fibrosis. We investigate how these general strategies have been applied to implants used for the treatment of diabetes, offering insights on how these devices can be further modified to circumvent FBR and fibrosis.
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Affiliation(s)
- Bhushan N Kharbikar
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Gauree S Chendke
- University of California Berkeley - University of California San Francisco Graduate Program in Bioengineering, San Francisco, CA 94143, USA
| | - Tejal A Desai
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA 94143, USA; University of California Berkeley - University of California San Francisco Graduate Program in Bioengineering, San Francisco, CA 94143, USA; Department of Bioengineering, University of California, Berkeley, CA 94720, USA.
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Venkatachalam V, Ganapathy S, Subramani T, Perumal I. Aqueous CdTe colloidal quantum dots for bio-imaging of Artemia sp. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Xu G, Wei F, Cen Y, Cheng X, Hu Q. Dual-Emissive Fluorescent Sensor Based on Functionalized Quantum Dots for the Simultaneous Determination of Nitric Oxide and Hydrogen Sulfide. ACS Biomater Sci Eng 2020; 6:6086-6094. [DOI: 10.1021/acsbiomaterials.0c00842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Guanhong Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Fangdi Wei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Yao Cen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Xia Cheng
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Qin Hu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
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Aluminum foil as a substrate for metal enhanced fluorescence of bacteria labelled with quantum dots, shows very large enhancement and high contrast. SENSING AND BIO-SENSING RESEARCH 2020. [DOI: 10.1016/j.sbsr.2020.100332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Wang J, Song F, Ai Y, Hu S, Huang Z, Zhong W. A simple FRET system using two-color CdTe quantum dots assisted by cetyltrimethylammonium bromide and its application to Hg(II) detection. LUMINESCENCE 2019; 34:205-211. [DOI: 10.1002/bio.3597] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/12/2018] [Accepted: 12/25/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Jing Wang
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education; China Pharmaceutical University; Nanjing China
| | - Fengjuan Song
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
| | - Yongling Ai
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
| | - Shanwen Hu
- Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering; Linyi University; Linyi China
| | - Zhizhou Huang
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
| | - Wenying Zhong
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education; China Pharmaceutical University; Nanjing China
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Modlitbová P, Pořízka P, Novotný K, Drbohlavová J, Chamradová I, Farka Z, Zlámalová-Gargošová H, Romih T, Kaiser J. Short-term assessment of cadmium toxicity and uptake from different types of Cd-based Quantum Dots in the model plant Allium cepa L. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 153:23-31. [PMID: 29407734 DOI: 10.1016/j.ecoenv.2018.01.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/18/2017] [Accepted: 01/22/2018] [Indexed: 06/07/2023]
Abstract
We report on the toxicity and bioaccumulation of three different types of Cd-based quantum dots (QDs), dispersed in aqueous medium, for a model plant Allium cepa L. It is believed that encapsulation of nanoparticles should reduce their toxicity and increase their stability in different environments; in this work we studied how QD encapsulation affects their phytotoxicity. Core, core/shell, and core/shell/shell QDs (CdTe, CdTe/ZnS, and CdTe/CdS/ZnS QDs capped by 2-mercaptopropionic acid) were tested and CdCl2 was used as a positive control. After 24-h and 72-h exposure, total Cd content (MCd) and bioaccumulation factors (BAFs) were determined in all parts of A. cepa plants (roots, bulb, shoot), and the total length of the root system was monitored as a toxicity end-point. Measurements of total Cd content versus free Cd2+ content (with Differential Pulse Voltammetry, DPV) in exposure media showed differences in chemical stability of the three QD types. Correspondingly, selected QDs showed different toxicity for A. cepa and different Cd bioaccumulation patterns. CdTe QDs were the most toxic; their effect was similar to CdCl2 due to the release of free Cd2+, which was confirmed by the DPV measurements. Plants exposed to CdTe QDs also bioaccumulated the most Cd among all QD exposure groups. CdTe/ZnS QDs showed no toxicity and very low bioaccumulation of Cd in A. cepa; the main source of measured Cd in the plants were QDs adsorbed on their roots, which was confirmed by fluorescence microscopy. On the contrary, CdTe/CdS/ZnS QD toxicity and bioaccumulation patterns were similar to those of CdTe QDs and pointed to unstable CdS/ZnS shells.
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Affiliation(s)
- Pavlína Modlitbová
- Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic.
| | - Pavel Pořízka
- Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic
| | - Karel Novotný
- Central European Institute of Technology (CEITEC) Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Jana Drbohlavová
- Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic
| | - Ivana Chamradová
- Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic
| | - Zdeněk Farka
- Central European Institute of Technology (CEITEC) Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Helena Zlámalová-Gargošová
- Faculty of Chemistry - The Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech Republic
| | - Tea Romih
- SEYENS Information Solutions and Education Ltd., Krimska ulica 20, 1000 Ljubljana, Slovenia
| | - Jozef Kaiser
- Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic
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Jiang X, Li BQ, Qu X, Yang H, Liu H. Thermal sensing with CdTe/CdS/ZnS quantum dots in human umbilical vein endothelial cells. J Mater Chem B 2017; 5:8983-8990. [DOI: 10.1039/c7tb02016c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An experimental methodology is presented to measure the temperature variation in cells with the usage of CdTe/CdS/ZnS core/shell/shell quantum dots as nanothermometers.
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Affiliation(s)
- Xinbing Jiang
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Ben Q. Li
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Xiaoli Qu
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Huan Yang
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Hongzhong Liu
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
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14
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Wang S, Tian J. Recent advances in counter electrodes of quantum dot-sensitized solar cells. RSC Adv 2016. [DOI: 10.1039/c6ra19226b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The recent progress in the development of counter electrodes (CEs) is reviewed, and the key issues for the materials, structures and performance evaluation of CEs are also addressed.
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Affiliation(s)
- Shixun Wang
- Institute of Advanced Materials Technology
- University of Science and Technology Beijing
- Beijing
- China
| | - Jianjun Tian
- Institute of Advanced Materials Technology
- University of Science and Technology Beijing
- Beijing
- China
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15
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Homogeneous immunoassay for the cancer marker alpha-fetoprotein using single wavelength excitation fluorescence cross-correlation spectroscopy and CdSe/ZnS quantum dots and fluorescent dyes as labels. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1694-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Ulusoy M, Jonczyk R, Walter JG, Springer S, Lavrentieva A, Stahl F, Green M, Scheper T. Aqueous Synthesis of PEGylated Quantum Dots with Increased Colloidal Stability and Reduced Cytotoxicity. Bioconjug Chem 2015; 27:414-26. [DOI: 10.1021/acs.bioconjchem.5b00491] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | - Mark Green
- Department
of Physics, King’s College London, The Strand, WC2R 2LS London, U.K
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Li Z, Wan S, Xu W, Wang Y, Shah BR, Jin W, Chen Y, Li B. Highly luminescent film functionalized with CdTe quantum dots by layer-by-layer assembly. J Appl Polym Sci 2015. [DOI: 10.1002/app.41893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhenshun Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- College of Life Science; Yangtze University; Jingzhou 434025 China
- Jingchu Food Research and Development Center; Yangtze University; Jingzhou 434025 China
| | - Shaolong Wan
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Wei Xu
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Yuntao Wang
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Bakht Ramin Shah
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Weiping Jin
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Yijie Chen
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology; Huazhong Agricultural University; Ministry of Education; Wuhan 430070 China
| | - Bin Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology; Huazhong Agricultural University; Ministry of Education; Wuhan 430070 China
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Jiang T, Song J, Wang H, Ye X, Wang H, Zhang W, Yang M, Xia R, Zhu L, Xu X. Aqueous synthesis of color tunable Cu doped Zn–In–S/ZnS nanoparticles in the whole visible region for cellular imaging. J Mater Chem B 2015; 3:2402-2410. [DOI: 10.1039/c4tb01957a] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cu doped Zn–In–S/ZnS QDs were synthesized for labeling the cytoplasm and their multiple peak emission mechanisms were proposed.
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Ulusoy M, Walter JG, Lavrentieva A, Kretschmer I, Sandiford L, Le Marois A, Bongartz R, Aliuos P, Suhling K, Stahl F, Green M, Scheper T. One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells. RSC Adv 2015. [DOI: 10.1039/c4ra13386b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An aqueous approach enhancing the properties of small-core/thick-shell CdTe/CdS nanocrystals by deposition of an outer ZnS shell was developed. The as-prepared nanocrystals were conjugated with aptamer for the targeted imaging of cancer cells.
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Affiliation(s)
- Mehriban Ulusoy
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | - Johanna-Gabriela Walter
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | - Antonina Lavrentieva
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | - Imme Kretschmer
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | | | - Alix Le Marois
- King's College London
- Department of Physics
- WC2R 2LS London
- UK
| | - Rebecca Bongartz
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | - Pooyan Aliuos
- Hannover Medical School
- Biomaterial Engineering
- 30625 Hannover
- Germany
| | - Klaus Suhling
- King's College London
- Department of Physics
- WC2R 2LS London
- UK
| | - Frank Stahl
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
| | - Mark Green
- King's College London
- Department of Physics
- WC2R 2LS London
- UK
| | - Thomas Scheper
- Gottfried Wilhelm Leibniz University of Hannover
- Institute of Technical Chemistry
- 30167 Hanover
- Germany
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20
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Yan Z, Zhang Z, Yu Y, Chen J. Study on the fluorescence resonance energy transfer between CdS quantum dots andEosin Y. LUMINESCENCE 2014; 30:155-8. [DOI: 10.1002/bio.2706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/25/2014] [Accepted: 04/25/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Zhengyu Yan
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing China
| | - Zhengwei Zhang
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing China
| | - Yan Yu
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing China
| | - Jianqiu Chen
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing China
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21
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Jiang T, Yin N, Liu L, Song J, Huang Q, Zhu L, Xu X. A Au nanoflower@SiO2@CdTe/CdS/ZnS quantum dot multi-functional nanoprobe for photothermal treatment and cellular imaging. RSC Adv 2014. [DOI: 10.1039/c4ra02965h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Au nanoflower@SiO2@CdTe/CdS/ZnS quantum dot multi-functional nanoprobe for photothermal treatment and cellular imaging.
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Affiliation(s)
- Tongtong Jiang
- Department of Physics
- University of Science and Technology of China
- Hefei, China
| | - Naiqiang Yin
- Department of Physics
- University of Science and Technology of China
- Hefei, China
| | - Ling Liu
- Department of Physics
- University of Science and Technology of China
- Hefei, China
| | - Jiangluqi Song
- Department of Physics
- University of Science and Technology of China
- Hefei, China
| | - Qianpeng Huang
- Center Laboratory
- First Affiliated Hospital of Anhui Medical University
- Hefei, China
| | - Lixin Zhu
- Center Laboratory
- First Affiliated Hospital of Anhui Medical University
- Hefei, China
| | - Xiaoliang Xu
- Department of Physics
- University of Science and Technology of China
- Hefei, China
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22
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Effect of CdS Interlayer on Properties of CdTe Based Quantum Dots. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0552-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Abou-Saleh RH, Peyman SA, Critchley K, Evans SD, Thomson NH. Nanomechanics of lipid encapsulated microbubbles with functional coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:4096-4103. [PMID: 23448164 DOI: 10.1021/la304093t] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Microbubbles (MBs) are increasingly being proposed as delivery vehicles for targeted therapeutics, as well as being contrast agents for ultrasound imaging. MBs formed with a lipid shell are promising candidates due to their biocompatibility and the opportunity for surface functionalization, both for specific targeting of tissues and as a means to tune their mechanical response for localized ultrasound induced destruction in vivo. Herein, we acquired force-deformation data on coated lipid MBs using tip-less microcantilevers in an atomic force microscope. Model lipid MBs were designed to test the effects of adding a functional coating on the outside of the lipid leaflet, including a protein coat (streptavidin) or the addition of quantum dots (Q-dots) as optical reporters. MBs (~3 μm diameter) were repeatedly compressed for deformations up to ~50% to obtain a full bubble response. Addition of a coating increased the initial deformation stiffness related to shell bending ~2-fold for streptavidin and ∼3-fold for Q-dots. The presence of a polyethylene glycol (PEG) linker in between the lipid and functional coating, led to enhanced stiffening at high deformations. The plasticity index has been determined and only those MBs that included the PEG linker showed a force dependent short time-scale (<~1s) plasticity. This study demonstrates modulation of the mechanical response of biocompatible MBs through the addition of functional coatings necessary for rationale design of therapeutic lipid MBs for targeted drug delivery.
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Affiliation(s)
- Radwa H Abou-Saleh
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, United Kingdom
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24
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Peyman SA, Abou-Saleh RH, McLaughlan JR, Ingram N, Johnson BRG, Critchley K, Freear S, Evans JA, Markham AF, Coletta PL, Evans SD. Expanding 3D geometry for enhanced on-chip microbubble production and single step formation of liposome modified microbubbles. LAB ON A CHIP 2012; 12:4544-52. [PMID: 22968592 DOI: 10.1039/c2lc40634a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Micron sized, lipid stabilized bubbles of gas are of interest as contrast agents for ultra-sound (US) imaging and increasingly as delivery vehicles for targeted, triggered, therapeutic delivery. Microfluidics provides a reproducible means for microbubble production and surface functionalisation. In this study, microbubbles are generated on chip using flow-focussing microfluidic devices that combine streams of gas and liquid through a nozzle a few microns wide and then subjecting the two phases to a downstream pressure drop. While microfluidics has successfully demonstrated the generation of monodisperse bubble populations, these approaches inherently produce low bubble counts. We introduce a new micro-spray flow regime that generates consistently high bubble concentrations that are more clinically relevant compared to traditional monodisperse bubble populations. Final bubble concentrations produced by the micro-spray regime were up to 10(10) bubbles mL(-1). The technique is shown to be highly reproducible and by using multiplexed chip arrays, the time taken to produce one millilitre of sample containing 10(10) bubbles mL(-1) was ∼10 min. Further, we also demonstrate that it is possible to attach liposomes, loaded with quantum dots (QDs) or fluorescein, in a single step during MBs formation.
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Affiliation(s)
- Sally A Peyman
- Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
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25
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Wang Z, Song H, Zhao H, Lv Y. Graphene-amplified electrogenerated chemiluminescence of CdTe quantum dots for H2O2sensing. LUMINESCENCE 2012; 28:259-64. [DOI: 10.1002/bio.2371] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 03/03/2012] [Accepted: 03/07/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Zhonghui Wang
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Hongjie Song
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Huihui Zhao
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
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26
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Zhong W, Zhang C, Gao Q, Li H. Highly sensitive detection of lead(II) ion using multicolor CdTe quantum dots. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0695-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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