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Significance of Capping Agents of Colloidal Nanoparticles from the Perspective of Drug and Gene Delivery, Bioimaging, and Biosensing: An Insight. Int J Mol Sci 2022; 23:ijms231810521. [PMID: 36142435 PMCID: PMC9505579 DOI: 10.3390/ijms231810521] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/01/2022] [Accepted: 09/07/2022] [Indexed: 11/19/2022] Open
Abstract
The over-growth and coagulation of nanoparticles is prevented using capping agents by the production of stearic effect that plays a pivotal role in stabilizing the interface. This strategy of coating the nanoparticles’ surface with capping agents is an emerging trend in assembling multipurpose nanoparticles that is beneficial for improving their physicochemical and biological behavior. The enhancement of reactivity and negligible toxicity is the outcome. In this review article, an attempt has been made to introduce the significance of different capping agents in the preparation of nanoparticles. Most importantly, we have highlighted the recent progress, existing roadblocks, and upcoming opportunities of using surface modified nanoparticles in nanomedicine from the drug and gene delivery, bioimaging, and biosensing perspectives.
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Xu Y, Zhang D, Lin J, Wu X, Xu X, Akakuru OU, Zhang H, Zhang Z, Xie Y, Wu A, Shao G. Ultrahigh SERS Activity of TiO2@Ag Nanostructure leveraged for Accurately Detecting CTCs in peripheral blood. Biomater Sci 2022; 10:1812-1820. [PMID: 35234756 DOI: 10.1039/d1bm01821c] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Circulating tumor cells (CTCs) usually shed from primary and metastatic tumors serve as an important tumor marker, and easily cause fatal distant metastasis in cancer patients. Accurately and effectively detecting...
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Affiliation(s)
- Yanping Xu
- Second clinical college, Zhejiang Chinese Medical University, Hang Zhou 310053, China
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Dinghu Zhang
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Xiaoxia Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Xiawei Xu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Ozioma Udochukwu Akakuru
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Hao Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Zhewei Zhang
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Yujiao Xie
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Guoliang Shao
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
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Jiang D, Sheng K, Gui G, Jiang H, Liu X, Wang L. A novel smartphone-based electrochemical cell sensor for evaluating the toxicity of heavy metal ions Cd 2+, Hg 2+, and Pb 2+ in rice. Anal Bioanal Chem 2021; 413:4277-4287. [PMID: 34057556 DOI: 10.1007/s00216-021-03379-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 02/08/2023]
Abstract
A novel smartphone-based electrochemical cell sensor was developed to evaluate the toxicity of heavy metal ions, such as cadmium (Cd2+), lead (Pb2+), and mercury (Hg2+) ions on Hep G2 cells. The cell sensor was fabricated with reduced graphene oxide (RGO)/molybdenum sulfide (MoS2) composites to greatly improve the biological adaptability and amplify the electrochemical signals. Differential pulse voltammetry (DPV) was employed to measure the electrical signals induced by the toxicity of heavy metal ions. The results showed that Cd2+, Hg2+, and Pb2+ significantly reduced the viability of Hep G2 cells in a dose-dependent manner. The IC50 values obtained by this method were 49.83, 36.94, and 733.90 μM, respectively. A synergistic effect was observed between Cd2+ and Pb2+ and between Hg2+ and Pb2+, and an antagonistic effect was observed between Cd2+ and Hg2+, and an antagonistic effect at low doses and an additive effect at high doses were found in the ternary mixtures of Cd2+, Hg2+, and Pb2+. These electrochemical results were confirmed via MTT assay, SEM and TEM observation, and flow cytometry. Therefore, this new electrochemical cell sensor provided a more convenient, sensitive, and flexible toxicity assessment strategy than traditional cytotoxicity assessment methods.
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Affiliation(s)
- Donglei Jiang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, Jiangsu, China
| | - Kaikai Sheng
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, Jiangsu, China
| | - Guoyue Gui
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, Jiangsu, China
| | - Hui Jiang
- Nanjing Institute for Food and Drug Control, Nanjing, 211198, Jiangsu, China
| | - Xinmei Liu
- Nanjing Institute for Food and Drug Control, Nanjing, 211198, Jiangsu, China
| | - Lifeng Wang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, Jiangsu, China.
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Biopolymer and Biomaterial Conjugated Iron Oxide Nanomaterials as Prostate Cancer Theranostic Agents: A Comprehensive Review. Symmetry (Basel) 2021. [DOI: 10.3390/sym13060974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is the most common malignancy in men and the leading cause of death for men all over the world. Early diagnosis is the key to start treatment at an early stage of PCa and to reduce the death toll. Generally, PCa expresses characteristic morphologic features and serum biomarkers; however, early diagnosis is challenging due to its heterogeneity and long-term indolent phase in the early stage. Following positive diagnosis, PCa patients receive conventional treatments including surgery, radiation therapy, androgen deprivation therapy, focal therapy, and chemotherapy to enhance survival time and alleviate PCa-related complications. However, these treatment strategies have both short and long-term side effects, notably impotence, urinary incontinence, erectile dysfunctions, and recurrence of cancer. These limitations warrant the quest for novel PCa theranostic agents with robust diagnostic and therapeutic potentials to lessen the burden of PCa-related suffering. Iron oxide nanoparticles (IONPs) have recently drawn attention for their symmetrical usage in the diagnosis and treatment of several cancer types. Here, we performed a systematic search in four popular online databases (PubMed, Google Scholar, Scopus, and Web of Science) for the articles regarding PCa and IONPs. Published literature confirmed that the surface modification of IONPs with biopolymers and diagnostic biomarkers improved the early diagnosis of PCa, even in the metastatic stage with reliable accuracy and sensitivity. Furthermore, fine-tuning of IONPs with biopolymers, nucleic acids, anticancer drugs, and bioactive compounds can improve the therapeutic efficacy of these anticancer agents against PCa. This review covers the symmetrical use of IONPs in the diagnosis and treatment of PCa, investigates their biocompatibility, and examines their potential as PCa theranostic agents.
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Li F, Wang M, Cai H, He Y, Xu H, Liu Y, Zhao Y. Nondestructive capture, release, and detection of circulating tumor cells with cystamine-mediated folic acid decorated magnetic nanospheres. J Mater Chem B 2021; 8:9971-9979. [PMID: 33174893 DOI: 10.1039/d0tb01091j] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Circulating tumor cell (CTC) detection and enumeration have been considered as a noninvasive biopsy method for the diagnosis, characterization, and monitoring of various types of cancers. However, CTCs are exceptionally rare, which makes CTC detection technologically challenging. In the past few decades, much effort has been focused on highly efficient CTC capture, while the activity of CTCs has often been ignored. Here, we develop an effective method for nondestructive CTC capture, release, and detection. Folic acid (FA), as a targeting molecule, is conjugated on magnetic nanospheres through a cleavable disulfide bond-containing linker (cystamine) and a polyethylene glycol (PEG2k) linker, forming MN@Cys@PEG2k-FA nanoprobes, which can bind with folate receptor (FR) positive CTCs specifically and efficiently, leading to the capture of CTCs with an external magnetic field. When approximately 150 and 10 model CTCs were spiked in 1 mL of lysis blood, 93.1 ± 2.9% and 80.0 ± 9.7% CTCs were recovered, respectively. In total, 81.3 ± 2.6% captured CTCs can be released from MN@Cys@PEG2k-FA magnetic nanospheres by treatment with dithiothreitol. The released CTCs are easily identified from blood cells for specific detection and enumeration combined with immunofluorescence staining with a limit of detection of 10 CTC mL-1 lysed blood. Moreover, the released cells remain healthy with high viability (98.6 ± 0.78%) and can be cultured in vitro without detectable changes in morphology or behavior compared with healthy untreated cells. The high viability of the released CTCs may provide the possibility for downstream proteomics research of CTCs; therefore, cultured CTCs were collected for proteomics. As a result, 3504 proteins were identified. In conclusion, the MN@Cys@PEG2k-FA magnetic nanospheres prepared in this study may be a promising tool for early-stage cancer diagnosis and provide the possibility for downstream analysis of CTCs.
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Affiliation(s)
- Fulai Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Minning Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Huahuan Cai
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yaohui He
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, P. R. China
| | - Hengyi Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Yan Liu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yufen Zhao
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang 315221, P. R. China
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Bag P, Maurya RK, Dadwal A, Sarkar M, Chawla PA, Narang RK, Kumar B. Recent Development in Synthesis of Carbon Dots from Natural Resources and Their Applications in Biomedicine and Multi‐Sensing Platform. ChemistrySelect 2021. [DOI: 10.1002/slct.202100468] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Puja Bag
- Department of Pharmaceutical Analysis ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
| | - Rahul K. Maurya
- Amity Institute of Pharmacy Amity University Uttar Pradesh Lucknow Campus India
| | - Ankita Dadwal
- Department of Pharmaceutics ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
- Department of Science and Technology Maharaja Ranjit Singh Punjab Technical University Bathinda 151001, Punjab India
| | - Mrinmoy Sarkar
- Department of Pharmaceutical Analysis ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
| | - Pooja A. Chawla
- Department of Pharmaceutical Analysis ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
- Department of Pharmaceutical Chemistry ISF College of Pharmacy, Ghal Kalan, G.T Road Moga, Punjab India- 142001
| | - Raj K. Narang
- Department of Pharmaceutics ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
| | - Bhupinder Kumar
- Department of Pharmaceutical Analysis ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga Punjab India- 142001
- Department of Pharmaceutical Chemistry ISF College of Pharmacy, Ghal Kalan, G.T Road Moga, Punjab India- 142001
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Liu ZG, Xiao M, Yang RZ, Zhou QQ, Ye HF, Yi CQ. Multiplexed Detection of Fe3+, Cobalamin and Folate Using Fluorescent Nanoprobe-Based Microarrays and a Smartphone. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00163-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Roy S, Bobde Y, Ghosh B, Chakraborty C. Targeted Bioimaging of Cancer Cells Using Free Folic Acid-Sensitive Molybdenum Disulfide Quantum Dots through Fluorescence "Turn-Off". ACS APPLIED BIO MATERIALS 2021; 4:2839-2849. [PMID: 35014323 DOI: 10.1021/acsabm.1c00090] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In the present study, a proficient way for targeted bioimaging of folate receptor (FR)-positive cancer cells using free folic acid (FA)- and MoS2 QD-based nanoprobes is discussed along with its advantages over the preparation of orthodox direct FA-nanoprobe bioconjugates for the imaging. The water-soluble MoS2 QDs of size 4-5 nm with cysteine functionalization are synthesized by a simplistic bottom-up hydrothermal method. The as-prepared MoS2 QDs exhibit the blue emission with the highest emission intensity at 444 nm upon excitation of 370 nm. The MoS2 QDs are too sensitive toward FA to produce an effective and stable nanofiber structure through supramolecular interaction, which demonstrates ∼97% quenching of fluorescence. Moreover, the high selectivity and sensitivity of MoS2 QDs toward FA make the MoS2 QD-based nanoprobe an appropriate candidate for FA-targeted "turn-off" imaging probes for in vivo study of FA-pretreated FR-overexpressed cancer cells. It is obvious from the confocal microscopy images that the FA-pretreated B16F10 cancer cells show higher population of dimmed fluorescence compared to untreated cancer cells and HEK-293 normal cells. The flow cytometry study quantitatively reveals the significant difference of the geometric mean of fluorescence between FA-pretreated and untreated B16F10 cancer cells. Hence, these MoS2 QD-based nanoprobes can be applied as potential nanoprobes for the prediagnosis of cancer through targeted bioimaging.
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Affiliation(s)
- Susmita Roy
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
| | - Yamini Bobde
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
| | - Chanchal Chakraborty
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
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9
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Influence of Surface Ligands on Charge-Carrier Trapping and Relaxation in Water-Soluble CdSe@CdS Nanorods. Catalysts 2020. [DOI: 10.3390/catal10101143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In this study, the impact of the type of ligand at the surface of colloidal CdSe@CdS dot-in-rod nanostructures on the basic exciton relaxation and charge localization processes is closely examined. These systems have been introduced into the field of artificial photosynthesis as potent photosensitizers in assemblies for light driven hydrogen generation. Following photoinduced exciton generation, electrons can be transferred to catalytic reaction centers while holes localize into the CdSe seed, which can prevent charge recombination and lead to the formation of long-lived charge separation in assemblies containing catalytic reaction centers. These processes are in competition with trapping processes of charges at surface defect sites. The density and type of surface defects strongly depend on the type of ligand used. Here we report on a systematic steady-state and time-resolved spectroscopic investigation of the impact of the type of anchoring group (phosphine oxide, thiols, dithiols, amines) and the bulkiness of the ligand (alkyl chains vs. poly(ethylene glycol) (PEG)) to unravel trapping pathways and localization efficiencies. We show that the introduction of the widely used thiol ligands leads to an increase of hole traps at the surface compared to trioctylphosphine oxide (TOPO) capped rods, which prevent hole localization in the CdSe core. On the other hand, steric restrictions, e.g., in dithiolates or with bulky side chains (PEG), decrease the surface coverage, and increase the density of electron trap states, impacting the recombination dynamics at the ns timescale. The amines in poly(ethylene imine) (PEI) on the other hand can saturate and remove surface traps to a wide extent. Implications for catalysis are discussed.
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10
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Zhu J, Zhao L, Zhao P, Yang J, Shi J, Zhao J. Charge-conversional polyethylenimine-entrapped gold nanoparticles with 131I-labeling for enhanced dual mode SPECT/CT imaging and radiotherapy of tumors. Biomater Sci 2020; 8:3956-3965. [PMID: 32555790 DOI: 10.1039/d0bm00649a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Novel theranostic nanosystems demonstrate great potential to achieve timely diagnosis and effective therapy at the same time. However, due to the relatively low accumulation of theranostic nanosystems at the tumor site, the theranostic efficiency is limited. In this study, a novel theranostic nanosystem with a pH-responsive charge conversion property was constructed to improve the cellular uptake towards cancer cells for enhanced single photon emission computed tomography (SPECT)/computed tomography (CT) dual mode imaging and radiotherapy of tumors. In detail, polyethylenimine (PEI) was utilized as a nanoplatform to link with polyethylene glycol (PEG) monomethyl ether with one end of N-hydroxylsuccinimide (mPEG-NHS), PEG with ends of maleimide and succinimidyl valerate (MAL-PEG-SVA), alkoxyphenyl acylsulfonamide (APAS), 3-(4'-hydroxyphenyl)propionic acid-OSu (HPAO), and fluorescein isothiocyanate (FI), successively. The formed functionalized PEI was then utilized to entrap gold nanoparticles, acetylate the remaining amines of PEI and label with radioactive iodine-131 (131I) to build theranostic nanosystems. The result demonstrated that the theranostic nanosystem has a 3.8 nm Au core and showed excellent colloidal stability. On account of the charge conversion property of APAS, the APAS linked PEI entrapped gold nanoparticles could switch from neutral to positive in a slightly acidic microenvironment, which induced improved cellular uptake. Above all, after 131I labeling, the generated theranostic nanosystem could achieve enhanced SPECT/CT dual mode imaging and radiotherapy of cancer cells in vitro and a xenograft tumor model in vivo. The constructed APAS-linked PEI nanosystem has great potential to be used as a model for SPECT/CT imaging and radiotherapy of various types of cancer.
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Affiliation(s)
- Jingyi Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China.
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11
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Monteiro CAP, Oliveira ADPR, Silva RC, Lima RRM, Souto FO, Baratti MO, Carvalho HF, Santos BS, Cabral Filho PE, Fontes A. Evaluating internalization and recycling of folate receptors in breast cancer cells using quantum dots. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 209:111918. [PMID: 32531690 DOI: 10.1016/j.jphotobiol.2020.111918] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 02/03/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022]
Abstract
Folic acid (FA) regulates metabolic activities essential to the human body. FA receptor (FR) overexpression has been reported for many cancers, but there are still few or conflicting data about FRs in breast cancer cells. Quantum dots (QDs) have arisen as tools to elucidate aspects on FRs, due to their unique physicochemical properties. Herein, QDs conjugated to FA were explored to study the internalization and recycling of FRs in breast cancer cells, using HeLa as an out-group control. QDs were covalently conjugated to FA under different conditions. The best conjugate was applied to study FRs in HeLa, MCF7, MDA-MB231, and T47D cells applying confocal microscopy and flow cytometry analyses. The conjugation efficiency and specificity were evaluated, respectively, using fluorescence correlation spectroscopy (FCS) and saturation assays. FCS confirmed the effectiveness of the conjugation. HeLa and T47D had/internalized a higher amount of FRs (95% and 90% of labeling, respectively) than MDA-MB231 cells (68%). MCF7 cells seem to have very low functional FRs (3%). Saturation assays proved the specificity of QD-FA conjugates and suggested that FR recycling rate is low in the majority of cells studied, except for T47D. QD-FA conjugates were successfully developed. Therapies targeting FRs may be more effective for HeLa, T47D, and MDA-MB231.
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Affiliation(s)
- Camila A P Monteiro
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Aline D P R Oliveira
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Ryan C Silva
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Rennan R M Lima
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Fabricio O Souto
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Mariana O Baratti
- Instituto Nacional de Ciência e Tecnologia de Fotônica Aplicada à Biologia Celular, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Hernandes F Carvalho
- Instituto Nacional de Ciência e Tecnologia de Fotônica Aplicada à Biologia Celular, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Beate S Santos
- Departmento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Paulo E Cabral Filho
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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12
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Yu Q, Zhao Y, Deng W, Chen T, Chu X. Cobalt Oxyhydroxide-prompted Synthesis of Fluorescent Polydopamine Nanoparticles for Glutathione Detection. ANAL SCI 2020; 36:347-352. [PMID: 31656249 DOI: 10.2116/analsci.19p340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Glutathione (GSH) plays an important role in cells, which is an essential endogenous antioxidant. Here, we have developed a new detection platform to analyze GSH levels. In our system, fluorescent polydopamine (PDA) nanoparticles, as signal indicators, were obtained by oxidation through cobalt oxyhydroxide (CoOOH) nanosheets. When CoOOH was present, CoOOH could quickly oxidize dopamine to fluorescent PDA nanoparticles. However, once GSH existed, CoOOH nanosheets were decomposed into Co2+, and oxidation between CoOOH and dopamine was prevented with weaker fluorescence occurring. Thus, we could realize detection of the GSH concentration according to the decreased fluorescence value of the fluorescent polydopamine. This method provides a fast, simple, high sensitivity and desirable selectivity platform for GSH monitoring.
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Affiliation(s)
- QiaoQin Yu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - YanYan Zhao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - WenJing Deng
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - TingTing Chen
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Xia Chu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
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13
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Semiconductor quantum dot FRET: Untangling energy transfer mechanisms in bioanalytical assays. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115750] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Kang C, Kim D. Nanoconfinement-mediated cancer theranostics. Arch Pharm Res 2020; 43:110-117. [PMID: 31989481 DOI: 10.1007/s12272-020-01217-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 01/20/2020] [Indexed: 10/25/2022]
Abstract
Despite various therapeutic or diagnostic developments, cancer is still one of the most lethal diseases due to insufficiently adequate treatments and the delay of the early stage of disease detection. An image-guided drug delivery system (IGDDS), as a real-time noninvasive imaging assessment of therapeutic response, has the strong potential to improve the diagnosis and treatment of cancer because its imaging property offers the quantification of nanomedicine at the intended disease sites, the possible assurance of adequate treatment and elimination of undesirable delay of early-stage diagnosis due to low resolution. One of potential modality that overcomes these challenges could be the nanoconfinement of gold (Au) nanoparticles within other nanoparticles called "Particle-in-Particle (PIP)", which is a strong candidate of cancer treatment because of its "theranostic (therapy + diagnostics)" advantages including imaging (e.g., CT) and therapeutic hyperthermia application. In this review, we will elaborate on the current application of theranostic by nanoconfinement. Then, we will narrow down the gold nanoparticle-mediated theranostic application and its nanoconfinement advantages. Finally, the future direction for maximum nanoconfinement mediated cancer therapy will be included.
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Affiliation(s)
- Changsun Kang
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M University, College Station, USA
| | - Dongin Kim
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M University, College Station, USA.
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15
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Fan B, Fan Q, Hu L, Cui M, Wang X, Ma H, Wei Q. Polydopamine-PEG-Folic Acid Conjugate Film Engineered TiO 2 Nanotube Arrays for Photoelectrochemical Sensing of Folate Binding Protein. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1877-1884. [PMID: 31816239 DOI: 10.1021/acsami.9b17630] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Serum-soluble folate binding protein (FBP) is an important tumor marker, and the development of a simple biosensing method is highly needed. In this work, a photoelectrochemical (PEC) biosensor for the detection of FBP was proposed based on the construction of an antifouling interface and the unique ligand-protein recognition. The PEC sensing platform was prepared by the biomimetic polydopamine (PDA) coating on TiO2 nanotubes arrays (NTAs). A significant PEC enhancement effect was obtained due to the macroporous structures. Excellent antifouling performance was achieved by conjugation of amino-group-terminated 8-arm poly(ethylene glycol) (PEG). The incorporation of folic acid (FA) retains the antifouling property and shows recognition abilities toward FBP. The fabricated PEC biosensor shows good analytical performance. The combination of ligand-protein recognition and a PEC antifouling interface provides a good consideration for the development of FBP biosensors.
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Affiliation(s)
- Bobo Fan
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Qi Fan
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Lulin Hu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Min Cui
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Xueying Wang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
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16
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Sun P, Hai J, Sun S, Lu S, Liu S, Liu H, Chen F, Wang B. Aqueous stable Pd nanoparticles/covalent organic framework nanocomposite: an efficient nanoenzyme for colorimetric detection and multicolor imaging of cancer cells. NANOSCALE 2020; 12:825-831. [PMID: 31830181 DOI: 10.1039/c9nr08486j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Accurate, sensitive detection of cancer cells from clinical fluids is helpful for screening and early diagnosis of tumors. Here, we develop a facile approach for in situ growth of palladium nanoparticles in an aqueous stable carboxymethyl cellulose-modified covalent organic framework hydrogel (named Pd NPs/CMC-COF-LZU1). The resulting nanocomposite has been proven to show superior catalytic performance for the transformation of N-butyl-4-NHAlloc-1,8-naphthalimide (NNPH) into N-butyl-4-amido-1,8-naphthalimide (NPH), indicated by significant changes in both color and fluorescence. Based on these features, the designed nanocomposite was used as a signal transducer to develop a colorimetric assay and multicolor imaging for accurate and sensitive detection of cancer cells. The transformation of NNPH into NPH enabled the detection system to perform multicolor imaging of HeLa cells. By using folic acid (FA) as a recognition element, a total of 100 cancer cells (HeLa) can be distinguished in 1 mL culture medium with 10% FBS. We envision that these COF-based composite materials (Pd NPs/CMC-COF-LZU1) have tremendous potential applications in biotechnology and biological sciences.
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Affiliation(s)
- Panpan Sun
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Gansu, Lanzhou, 730000, China.
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17
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Chen Z, Lv Z, Sun Y, Chi Z, Qing G. Recent advancements in polyethyleneimine-based materials and their biomedical, biotechnology, and biomaterial applications. J Mater Chem B 2020; 8:2951-2973. [DOI: 10.1039/c9tb02271f] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Precise-synthesis strategies and integration approaches of bioinspired PEI-based systems, and their biomedical, biotechnology and biomaterial applications.
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Affiliation(s)
- Zhonghui Chen
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology
- China National Analytical Center
- Guangzhou 510070
- China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
| | - Ziyu Lv
- Institute of Microscale Optoelectronics
- Shenzhen University
- Shenzhen 518000
- China
| | - Yifeng Sun
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology
- China National Analytical Center
- Guangzhou 510070
- China
| | - Zhenguo Chi
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- State Key Laboratory of OEMT
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Guangyan Qing
- Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116000
- China
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18
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Kong T, Zhou R, Zhang Y, Hao L, Cai X, Zhu B. AS1411 aptamer modified carbon dots via polyethylenimine-assisted strategy for efficient targeted cancer cell imaging. Cell Prolif 2019; 53:e12713. [PMID: 31691382 PMCID: PMC6985679 DOI: 10.1111/cpr.12713] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/02/2019] [Accepted: 10/08/2019] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Carbon dots (CDs), as a fascinating class of fluorescent carbon nanomaterials, have been proven to be powerful tools in the field of bioimaging and biosensing due to their small size, suitable photostability and favourable biocompatibility. However, the cellular uptake of free CDs lacks selectivity and the same negative charges as cell membranes may cause inefficient cell internalization. In this study, an efficient detecting and targeting nanosystem was developed based on the DNA aptamer AS1411 modified CDs with polyethyleneimine (PEI) as connecting bridge. MATERIALS AND METHODS Hydrothermally prepared CDs were assembled with positive-charged PEI, followed by conjugation with AS1411 through electrostatic interaction to form CDs-PEI-AS1411 nanocomplexes. The CDs, CDs-PEI and CDs-PEI-AS1411 were characterized by transmission electron microscopy (TEM), fourier transform infrared (FTIR) spectra, UV-vis spectra, zeta potential measurements and capillary electrophoresis characterizations. The cytotoxicity investigation of the CDs-PEI-AS1411 and CDs-PEI in both MCF-7 and L929 cells was carried out by the CCK-8 assay. The cellular uptake of the CDs-PEI-AS1411 was studied with confocal microscopy and flow cytometry. RESULTS The as-prepared nanosystem possessed good photostability and no obvious cytotoxicity. On the basis of the confocal laser scanning microscope observation and the flow cytometry studies, the cellular uptake of CDs-PEI-AS1411 nanosystem in MCF-7 cells was significantly higher than that of L929 cells, which revealed the highly selective detection ability of nucleolin-positive cells. CONCLUSIONS The results of this study indicated that the CDs-PEI-AS1411 nanosystem had a potential value in cancer cell targeted imaging.
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Affiliation(s)
- Tingting Kong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ronghui Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yujun Zhang
- Department of Prosthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Liying Hao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bofeng Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.,Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, China
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19
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Zhang Y, Zhang C, Xu C, Wang X, Liu C, Waterhouse GIN, Wang Y, Yin H. Ultrasmall Au nanoclusters for biomedical and biosensing applications: A mini-review. Talanta 2019; 200:432-442. [PMID: 31036206 DOI: 10.1016/j.talanta.2019.03.068] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/09/2019] [Accepted: 03/16/2019] [Indexed: 12/31/2022]
Abstract
Gold (Au) nanoclusters with diameters less than 2 nm are attracting increasing attention due to their unique size-dependent physicochemical properties which include strong luminescence and excellent biocompatibility. Accordingly, Au nanoclusters are now becoming essential in biomedical research for bioimaging, biosensing, quantitative analysis of protein and ion detection. In this mini review, the luminescence mechanism and biosynthesis of Au nanoclusters is systematically explored, followed by a brief survey of Au nanoclusters applications across the biomedical sector. Particular emphasis is placed on the role of biological molecules such as proteins, peptides and low molecular weight organic compounds in the synthesis of small luminescent Au nanoclusters, either as templates or surface capping agents. Successful strategies for applying luminescent Au nanoclusters in bioimaging and biosensing are also summarized. Future areas for Au nanocluster utilization in biomedical research are briefly discussed.
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Affiliation(s)
- Yong Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Chunyu Zhang
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Chao Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Xiaolin Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Chang Liu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Geoffrey I N Waterhouse
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China; School of Chemical Sciences, The University of Auckland, Auckland 11142, New Zealand
| | - Yaling Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellent in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Hongzong Yin
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
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20
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Kulkarni NS, Guererro Y, Gupta N, Muth A, Gupta V. Exploring potential of quantum dots as dual modality for cancer therapy and diagnosis. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Hatano A, Kanno Y, Kondo Y, Sunaga Y, Umezawa H, Fukui K. Use of a deoxynojirimycin-fluorophore conjugate as a cell-specific imaging probe targeting α-glucosidase on cell membranes. Bioorg Med Chem 2019; 27:859-864. [PMID: 30712980 DOI: 10.1016/j.bmc.2019.01.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 01/21/2019] [Accepted: 01/25/2019] [Indexed: 11/26/2022]
Abstract
Molecules designed for cell-specific imaging were studied, taking advantage of an enzyme-inhibitor interaction. 1-Deoxynojirimycin (DNJ) can be actively captured by cells which express the surface membrane protein α-glucosidase. New probes composed of DNJ for recognition linked to a fluorophore signal portion were prepared (DNJ-CF31, DNJ-Dans 2 and DNJ-DEAC 3). Docking simulations revealed that the inhibitors acarbose and miglitol and the inhibitor portion of the probes bind at the same position in the pocket of α-glucosidase (human-derived PDB: 3TON). The ability of probes 1-3 to detect the difference between HeLa cells (from human cervical cancer tissue), Neuro-2a cells (from a mouse neuroblastoma C1300 tumor), N1E-115 cells (from a mouse brain neuroblastoma C1300 tumor), A1 cells (from the astrocyte of a newborn mouse brain), and Caco-2 cells (from a human colon carcinoma) was evaluated, and cell-specific fluorescence imaging was possible for conjugate probes 1 and 2. Caco-2 cells treated with probes 1 and 2 showed blue and green fluorescence, respectively, from the cell membrane, and did not stain the Caco-2 cells inside. These results show that DNJ-CF31 and DNJ-Dans 2 recognize an α-glucosidase protein on the surface of Caco-2 cells. Probes 1 and 2 did not stain any part of the other cells. This cell-specific imaging strategy is applicable for a variety of therapeutic agents for many diseases.
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Affiliation(s)
- Akihiko Hatano
- Department of Chemistry, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan.
| | - Yuichi Kanno
- Department of Chemistry, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yuya Kondo
- Department of Chemistry, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yuta Sunaga
- Department of Chemistry, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Hatsumi Umezawa
- Department of Chemistry, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Koji Fukui
- Department of Bioscience and Engineering, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
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22
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Ren HH, Fan Y, Wang B, Yu LP. Polyethylenimine-Capped CdS Quantum Dots for Sensitive and Selective Detection of Nitrite in Vegetables and Water. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8851-8858. [PMID: 30016094 DOI: 10.1021/acs.jafc.8b01951] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present work, polyethylenimine-capped CdS quantum dots (PEI-CdS QDs) with bright green fluorescence were synthesized and applied for sensitively and selectively detecting the nitrite in vegetable and water samples. Highly fluorescent and environment-friendly PEI-CdS QDs (quantum yield about 8%) with diameters of ca. 5 nm were easily synthesized by using hyperbranched PEI as functional polymer. Formation of the PEI-CdS QDs was verified by transmission electron microscopy and UV-vis spectroscopy. The fluorescence intensity of the as-synthesized PEI-CdS QDs was enhanced pronouncedly by the increasing amount of PEI and was stable when the pH ranged from 5.0 to 9.0. Our results demonstrated that the fluorescence of the PEI-CdS QDs was effectively quenched by the nitrite in a rather wide linear range of 1.0 × 10-7-1.0 × 10-4 M while efficiently avoiding the interferences from nitrate ions and other commonly coexisting anions of nitrite in the vegetable samples. The detection limit of the present method was lower than the maximum limit of nitrite in drinking water (6.5 × 10-5 M) ruled by the World Health Organization, which is significant to the application of the method.
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23
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Zhao X, Lv G, Peng Y, Liu Q, Li X, Wang S, Li K, Qiu L, Lin J. Targeted Delivery of an Activatable Fluorescent Probe for the Detection of Furin Activity in Living Cells. Chembiochem 2018; 19:1060-1065. [DOI: 10.1002/cbic.201800015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Xueyu Zhao
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Gaochao Lv
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Ying Peng
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Qingzhu Liu
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Xi Li
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Shanshan Wang
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Ke Li
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Ling Qiu
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
| | - Jianguo Lin
- Key Laboratory of Nuclear Medicine, Ministry of Health; Jiangsu Key Laboratory of Molecular Nuclear Medicine; Jiangsu Institute of Nuclear Medicine; Wuxi 214063 China
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24
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Nie L, Li F, Huang X, Aguilar ZP, Wang YA, Xiong Y, Fu F, Xu H. Folic Acid Targeting for Efficient Isolation and Detection of Ovarian Cancer CTCs from Human Whole Blood Based on Two-Step Binding Strategy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14055-14062. [PMID: 29620849 DOI: 10.1021/acsami.8b02583] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Studies regarding circulating tumor cells (CTCs) have great significance for cancer prognosis, treatment monitoring, and metastasis diagnosis. However, due to their extremely low concentration in peripheral blood, isolation and enrichment of CTCs are the key steps for early detection. To this end, targeting the folic acid receptors (FRs) on the CTC surface for capture with folic acid (FA) using bovine serum albumin (BSA)-tether for multibiotin enhancement in combination with streptavidin-coated magnetic nanoparticles (MNPs-SA) was developed for ovarian cancer CTC isolation. The streptavidin-biotin-system-mediated two-step binding strategy was shown to capture CTCs from whole blood efficiently without the need for a pretreatment process. The optimized parameters for this system exhibited an average capture efficiency of 80%, which was 25% higher than that of FA-decorated magnetic nanoparticles based on the one-step CTC separation method. Moreover, the isolated cells remained highly viable and were cultured directly without detachment from the MNPs-SA-biotin-CTC complex. Furthermore, when the system was applied for the isolation and detection of CTCs in ovarian cancer patients' peripheral blood samples, it exhibited an 80% correlation with clinical diagnostic criteria. The results indicated that FA targeting, in combination with BSA-based multibiotin enhancement magnetic nanoparticle separation, is a promising tool for CTC enrichment and detection of early-stage ovarian cancer.
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Affiliation(s)
- Liju Nie
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
- The Second Affiliated Hospital of Nanchang University , Nanchang 330006 , China
- Jiangxi Maternal and Child Health Hospital , Nanchang 330000 , China
| | - Fulai Li
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Xiaolin Huang
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | | | | | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Fen Fu
- The Second Affiliated Hospital of Nanchang University , Nanchang 330006 , China
| | - Hengyi Xu
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
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25
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Lin Y, Yang Y, Yan J, Chen J, Cao J, Pu Y, Li L, He B. Redox/ATP switchable theranostic nanoparticles for real-time fluorescence monitoring of doxorubicin delivery. J Mater Chem B 2018; 6:2089-2103. [PMID: 32254432 DOI: 10.1039/c7tb03325g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, redox/ATP switchable theranostic nanoparticles (TNs) with precise specificity and controllable mobility were developed for the real-time monitoring of the release of an anticancer drug. A fluorescent probe (FAM) and a quencher (BHQ-1) were covalently conjugated to one end of an adenosine-5'-triphosphate (ATP) aptamer and its complementary DNA (cDNA), respectively. Then, doxorubicin (DOX) was intercalated within the DNA duplex to form a stable physical conjugate (FBA@DOX). Poly(ethylene glycol)-block-poly (aspartic acid-graft-cystamine) (PAS), a glutathione-sensitive cationic polymer, was synthesized and complexed with the FBA@DOX, endowing it with excellent stability in physiological solutions. Fluorescence recovery/quenching, DNase degradation, in vitro drug release, cellular uptake, and intracellular trafficking results revealed that the TNs remained in the "OFF" state, with a minimal FAM fluorescent signal and negligible DOX premature release, in low-glutathione and/or low-ATP environments. In contrast, the TNs turned "ON" and rapidly released FBA@DOX in glutathione-rich environments after internalization in cancer cells. The intracellular ATP triggered the conformational changes in FBA@DOX, thereby enabling the controlled release of DOX and simultaneous recovery of the fluorescence for monitoring the DOX release. In a cytotoxicity and apoptosis study, the redox/ATP switchable TNs demonstrated strong anticancer effects, attributable to their selective release of the drug. Overall, our findings may offer a promising strategy for developing a new generation of "smart" theranostic platforms.
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Affiliation(s)
- Yi Lin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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26
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Liu R, Zhao J, Han G, Zhao T, Zhang R, Liu B, Liu Z, Zhang C, Yang L, Zhang Z. Click-Functionalized SERS Nanoprobes with Improved Labeling Efficiency and Capability for Cancer Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38222-38229. [PMID: 28920430 DOI: 10.1021/acsami.7b10409] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Precise identification and detection of cancer cells using nanoparticle probes are critically important for early cancer diagnosis and subsequent therapy. We herein develop novel folate receptor (FR)-targeted surface-enhanced Raman scattering (SERS) nanoprobes for cancer cell imaging based on a click coupling strategy. A Raman-active derivative (5,5'-dithiobis(2-nitrobenzoic acid)-N3 (DNBA-N3)) is designed with a disulfide bond for covalently anchoring to the surface of hollow gold nanoparticles (HAuNPs) and a terminal azide group for facilitating highly efficient conjugation with the bioligand. Modification of HAuNPs with DNBA-N3 yields monolayer coverage of Raman labels absorbed on the nanoparticle surface (HAuNP-DNBA-N3) and strong SERS signals. HAuNP-DNBA-N3 can be simply and effectively conjugated with folate bicyclo[6.1.0]nonyne derivatives via a copper-free click reaction. The synthesized nanoprobes (HAuNP-DNBA-folic acid (FA)) exhibit excellent targeted capacities to FR-positive cancer cells relative to FR-negative cells through SERS mappings. The receptor-mediated delivery behaviors are confirmed by comparison with the uptake of HAuNP-DNBA-N3 and free FA competition experiments. In addition to its good stability and benign biocompatibility, the developed SERS nanoprobes have great potential for applications in targeted tumor imaging.
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Affiliation(s)
- Renyong Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
- Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Jun Zhao
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Guangmei Han
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Tingting Zhao
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Ruilong Zhang
- School of Chemistry and Chemical Engineering, Anhui University , Hefei, Anhui 230601, China
| | - Bianhua Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Zhengjie Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Cheng Zhang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Linlin Yang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Zhongping Zhang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
- School of Chemistry and Chemical Engineering, Anhui University , Hefei, Anhui 230601, China
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Duman FD, Erkisa M, Khodadust R, Ari F, Ulukaya E, Acar HY. Folic acid-conjugated cationic Ag 2S quantum dots for optical imaging and selective doxorubicin delivery to HeLa cells. Nanomedicine (Lond) 2017; 12:2319-2333. [PMID: 28875744 DOI: 10.2217/nnm-2017-0180] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM We aim to develop folic acid (FA)-conjugated cationic Ag2S near-infrared quantum dots (NIRQDs) for the delivery of doxorubicin (DOX) selectively to folate receptor (FR)-positive cancer cells to achieve enhanced drug efficacy and optical tracking in the NIR region. MATERIALS & METHODS Cationic Ag2S NIRQDs were decorated with FA using a PEG bridge and loaded with DOX. In vitro studies were performed on FR-positive human cervical carcinoma cells and FR-negative A549 cells. RESULTS Significantly higher uptake of DOX by human cervical carcinoma cells cells and a greater therapeutic effect along with a strong intracellular optical signal were obtained with DOX-loaded FA-conjugated Ag2S NIRQDs. CONCLUSION These Ag2S NIRQDs are promising theranostic nanoparticles for receptor-mediated delivery of DOX with enhanced drug efficacy combined with optical imaging.
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Affiliation(s)
| | - Merve Erkisa
- Department of Biology, Uludag University, Bursa 16059, Turkey
| | | | - Ferda Ari
- Department of Biology, Uludag University, Bursa 16059, Turkey
| | - Engin Ulukaya
- Department of Clinical Biochemistry, School of Medicine, Istinye University, Istanbul 34010, Turkey
| | - Havva Yagci Acar
- Department of Chemistry, Koc University, Istanbul 34450, Turkey.,Koc University Surface Science & Technology Center (KUYTAM), Istanbul 34450, Turkey
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Kong L, Tian XH, Wang H, Gao YH, Zhang Q, Yang JX, Zhou HP, Zhang SY, Tian YP. Coordination coupling enhanced two-photon absorption of a ZnS-based microhybrid for two-photon microscopy imaging in HepG2. NANOSCALE 2017; 9:7901-7910. [PMID: 28569313 DOI: 10.1039/c6nr08883j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Coordination coupling induced self-assembly of ZnS microparticles was performed with the help of a π-conjugated sulphur-terminal Zn(ii) complex ZnS2L (L = N-hexyl-3-{2-[4-2,2':6',2''-terpyridin-4'-yl-phenyl]ethenyl}-carbazole). The interactions between ZnS and ZnS2L components at the interface, which were analyzed by far-IR and XPS, resulted in a tunable single-photon excited fluorescence and an enhanced nonlinear optical response, including a two-photon absorption cross section and a two-photon excited fluorescence. Such an enhancement in nonlinear optical properties was triggered by the coordination coupling effect between terminal S atoms of ZnS2L and naked Zn2+ ions at the surface of ZnS particles. Thus, the novel hybrid system displayed a unique two-photon excited fluorescence to facilitate promising two-photon microscopy imaging of HepG2 cells upon NIR light illumination at 840 nm. The hybrid shows a stronger ability to enter the cells than free ZnS2L.
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Affiliation(s)
- Lin Kong
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei 230039, P. R. China.
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29
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Hao W, Wang T, Liu D, Shang Y, Zhang J, Xu S, Liu H. Folate-conjugated pH-controllable fluorescent nanomicelles acting as tumor targetable drug carriers. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2255-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Li H, Cheng Y, Liu Y, Chen B. Fabrication of folic acid-sensitive gold nanoclusters for turn-on fluorescent imaging of overexpression of folate receptor in tumor cells. Talanta 2016; 158:118-124. [DOI: 10.1016/j.talanta.2016.05.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 11/26/2022]
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31
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Kong XJ, Wu S, Chen TT, Yu RQ, Chu X. MnO2-induced synthesis of fluorescent polydopamine nanoparticles for reduced glutathione sensing in human whole blood. NANOSCALE 2016; 8:15604-10. [PMID: 27511888 DOI: 10.1039/c6nr04777g] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Polydopamine (PDA) nanoparticles, as a kind of popular polymer material, have attracted a great deal of attention from various areas including materials science, biomedicine, energy, environmental science and so on owing to their striking physicochemical properties. Herein, we reported for the first time the synthesis of intrinsic fluorescent PDA nanoparticles using MnO2 as an oxidant. In the presence of MnO2, dopamine was quickly oxidized into its quinone derivative, and autopolymerized into fluorescent PDA nanoparticles. Using fluorescent PDA nanoparticles as a fluorescence signal indicator, we further established a cost-effective sensor for rapid, sensitive and selective sensing of reduced glutathione (GSH) based on the redox reaction between MnO2 and GSH, and the key role of MnO2 in the formation of fluorescent PDA nanoparticles. GSH has the capability of reducing MnO2 into Mn(2+), which inhibited the formation of the fluorescent PDA nanoparticles. Thus, the concentration of GSH was directly related to the decreased fluorescence signal intensity of the PDA nanoparticles. The sensor showed good sensing performance for GSH detection with high sensitivity and desirable selectivity over other potential interfering species. Additionally, the sensor exhibited excellent practical applications for GSH detection in human whole blood samples, which presents potential applications in biological detection and clinical diagnosis.
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Affiliation(s)
- Xiang-Juan Kong
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Shuang Wu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Ting-Ting Chen
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Xia Chu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
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32
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Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
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Facile synthesis of 5 nm NaYF4:Yb/Er nanoparticles for targeted upconversion imaging of cancer cells. Talanta 2016; 152:504-12. [DOI: 10.1016/j.talanta.2016.02.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/10/2016] [Accepted: 02/17/2016] [Indexed: 11/20/2022]
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34
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Li J, Cheng F, Huang H, Li L, Zhu JJ. Nanomaterial-based activatable imaging probes: from design to biological applications. Chem Soc Rev 2016. [PMID: 26214317 DOI: 10.1039/c4cs00476k] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Activatable imaging probes as alternatives to "always on" imaging probes have attracted more and more attention due to their improved sensitivity and specificity. They are commonly designed to amplify or boost imaging signals only in response to specific biomolecular recognition or interaction. Thus, the design strategies play a vital role in the fabrication of activatable imaging probes. In this review, we focus on the design mechanisms and biological applications of those nanomaterial-based activatable imaging probes reported in the past five years, benefitting greatly from the good development of nanotechnology. These probes not only include the most studied activatable fluorescence imaging probes, but also cover more activatable MR imaging probes based on nanoparticle contrast agents and activatable photoacoustic imaging probes, providing more bases for clinical translation.
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Affiliation(s)
- Jingjing Li
- School of Medical Imaging, Xuzhou Medical College, Xuzhou 221004, China and Department of Radiology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Fangfang Cheng
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation of Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Haiping Huang
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation of Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Lingling Li
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation of Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation of Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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35
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Fan ZY, Zhao YL, Zhu XY, Luo Y, Shen MW, Shi XY. Folic acid modified electrospun poly(vinyl alcohol)/polyethyleneimine nanofibers for cancer cell capture applications. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1792-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Jin H, Gui R, Sun J, Wang Y. Glycerol-regulated facile synthesis and targeted cell imaging of highly luminescent Ag2Te quantum dots with tunable near-infrared emission. Colloids Surf B Biointerfaces 2016; 143:118-123. [PMID: 26998873 DOI: 10.1016/j.colsurfb.2016.03.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/09/2016] [Accepted: 03/10/2016] [Indexed: 11/25/2022]
Abstract
In this work, highly luminescent and emission tunable Ag2Te quantum dots (QDs) were facilely prepared by using water-dispersed glycerol as viscous solvent and CH3COOAg/Na2TeO3 as Ag/Te precursors. Viscous glycerol was utilized to slow the nucleation and growth of QDs at 200°C, and enabled the isolation of QDs with different emission wavelengths. Experimental results revealed that the as-prepared Ag2Te QDs exhibited tunable near-infrared emission from 930 to 1084nm, high photoluminescence (PL) quantum yields (QYs, more than 20%), good photostability and low cytotoxicity. After surface coating of a thin silica shell (∼1.4nm), the resulting NH2 terminated Ag2Te@SiO2-NH2 displayed enhanced PL QYs, higher photostability and biocompatibility when compared with the original Ag2Te QDs. Through a facile carboxy-amine coupling, folic acid (FA) was grafted with Ag2Te@SiO2-NH2 to form Ag2Te@SiO2-FA nanocomposites, which were used for targeted PL imaging of folate receptor over-expressed tumor cells.
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Affiliation(s)
- Hui Jin
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, PR China
| | - Rijun Gui
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, PR China.
| | - Jie Sun
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, PR China
| | - Yanfeng Wang
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, PR China
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37
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Liu SG, Li N, Ling Y, Kang BH, Geng S, Li NB, Luo HQ. pH-Mediated Fluorescent Polymer Particles and Gel from Hyperbranched Polyethylenimine and the Mechanism of Intrinsic Fluorescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1881-9. [PMID: 26829461 DOI: 10.1021/acs.langmuir.6b00201] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report that fluorescence properties and morphology of hyperbranched polyethylenimine (hPEI) cross-linked with formaldehyde are highly dependent on the pH values of the cross-linking reaction. Under acidic and neutral conditions, water-soluble fluorescent copolymer particles (CPs) were produced. However, under basic conditions, white gels with weak fluorescence emission would be obtained. The water-soluble hPEI-formaldehyde (hPEI-F) CPs show strong intrinsic fluorescence without the conjugation to any classical fluorescent agents. By the combination of spectroscopy and microscopy techniques, the mechanism of fluorescence emission was discussed. We propose that the intrinsic fluorescence originates from the formation of a Schiff base in the cross-linking process between hPEI and formaldehyde. Schiff base bonds are the fluorescence-emitting moieties, and the compact structure of hPEI-F CPs plays an important role in their strong fluorescence emission. The exploration on fluorescence mechanism may provide a new strategy to prepare fluorescent polymer particles. In addition, the investigation shows that the hPEI-F CPs hold potential as a fluorescent probe for the detection of copper ions in aqueous media.
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Affiliation(s)
- Shi Gang Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Na Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Yu Ling
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Bei Hua Kang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Shuo Geng
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Nian Bing Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Hong Qun Luo
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
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38
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Qiao Y, Zheng X. Investigation of the fluorescence quenching behavior of PEI-doped silica nanoparticles and its applications. RSC Adv 2016. [DOI: 10.1039/c6ra21543b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and feasible method for overcoming the fluorescence quenching effect of PEI on fluorophores (eosin Y was chosen as the model dye) was designed for the first time.
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Affiliation(s)
- Yali Qiao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Xingwang Zheng
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
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39
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Mukherjee A, Shim Y, Myong Song J. Quantum dot as probe for disease diagnosis and monitoring. Biotechnol J 2015; 11:31-42. [PMID: 26709963 DOI: 10.1002/biot.201500219] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/18/2015] [Accepted: 12/09/2015] [Indexed: 12/15/2022]
Abstract
Semiconductor quantum dots (QD) possess unique optical and electric properties like size-tunable light emission, narrow emission range, high brightness and photostability. Recent research advances have minimized the toxicity of QDs and they are successfully used in in vitro and in vivo imaging. Encapsulation of QDs into polymeric nanoparticles and linking them with targeting ligands enabled the detection of tumors and cancer cells in vivo. QD-antibody conjugates were successfully used in monitoring and diagnosis of HIV and myocardial infarction. Application of near infrared (NIR) QDs was found to minimize the absorption and scattering of light by native tissues thus rendering them suitable in deep tissue analysis. Aggregation and endosomal sequestration of QDs pose major challenges for the effective delivery of QDs to the cell cytosol. Toxicity minimization and effective delivery strategies may further increase their suitability for utilization in disease diagnosis. New synthesis of QDs may provide new types of bioconjugates of QDs to biomolecules, which leads to a variety of applications to many challenged research areas. QDs with narrow emission wavelength ranges are very suitable for monitoring multiple cellular targets simultaneously, and still remain the best known probes for imaging as an alternative to traditional fluorophores in disease diagnosis.
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Affiliation(s)
| | - Yumi Shim
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, South Korea.
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40
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Yan Z, Gan N, Li T, Cao Y, Chen Y. A sensitive electrochemical aptasensor for multiplex antibiotics detection based on high-capacity magnetic hollow porous nanotracers coupling exonuclease-assisted cascade target recycling. Biosens Bioelectron 2015; 78:51-57. [PMID: 26594886 DOI: 10.1016/j.bios.2015.11.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 11/05/2015] [Accepted: 11/08/2015] [Indexed: 01/09/2023]
Abstract
A multiplex electrochemical aptasensor was developed for simultaneous detection of two antibiotics such as chloramphenicol (CAP) and oxytetracycline (OTC), and high-capacity magnetic hollow porous nanotracers coupling exonuclease-assisted target recycling was used to improve sensitivity. The cascade amplification process consists of the exonuclease-assisted target recycling amplification and metal ions encoded magnetic hollow porous nanoparticles (MHPs) to produce voltammetry signals. Upon the specific recognition of aptamers to targets (CAP and OTC), exonuclease I (Exo I) selectively digested the aptamers which were bound with CAP and OTC, then the released CAP and OTC participated new cycling to produce more single DNA, which can act as trigger strands to hybrid with nanotracers to generate further signal amplification. MHPs were used as carriers to load more amounts of metal ions and coupling with Exo I assisted cascade target recycling can amplify the signal for about 12 folds compared with silica based nanotracers. Owing to the dual signal amplification, the linear range between signals and the concentrations of CAP and OTC were obtained in the range of 0.0005-50 ng mL(-1). The detection limits of CAP and OTC were 0.15 and 0.10 ng mL(-1) (S/N=3) which is more than 2 orders lower than commercial enzyme-linked immunosorbent immunoassay (ELISA) method, respectively. The proposed method was successfully applied to simultaneously detection of CAP and OTC in milk samples. Besides, this aptasensor can be applied to other antibiotics detection by changing the corresponding aptamer. The whole scheme is facile, selective and sensitive enough for antibiotics screening in food safety.
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Affiliation(s)
- Zhongdan Yan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Ning Gan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China.
| | - Tianhua Li
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Yuting Cao
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China.
| | - Yinji Chen
- Nanjing University of Finance and Economics, PR China
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41
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Guo Z, Chen G, Zeng G, Li Z, Chen A, Wang J, Jiang L. Fluorescence chemosensors for hydrogen sulfide detection in biological systems. Analyst 2015; 140:1772-86. [PMID: 25529122 DOI: 10.1039/c4an01909a] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A comprehensive review of the development of H2S fluorescence-sensing strategies, including sensors based on chemical reactions and fluorescence resonance energy transfer (FRET), is presented. The advantages and disadvantages of fluorescence-sensing strategies are compared with those of traditional methods. Fluorescence chemosensors, especially those used in FRET sensing, are highly promising because of their low cost, technical simplicity, and their use in real-time sulfide imaging in living cells. Potential applications based on sulfate reduction to H2S, the relationship between sulfate-reducing bacteria activity and H2S yield, and real-time detection of sulfate-reducing bacteria activity using fluorescence sensors are described. The current challenges, such as low sensitivity and poor stability, are discussed.
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Affiliation(s)
- Zhi Guo
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China.
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42
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A "signal-on'' aptasensor for simultaneous detection of chloramphenicol and polychlorinated biphenyls using multi-metal ions encoded nanospherical brushes as tracers. Biosens Bioelectron 2015. [PMID: 26210469 DOI: 10.1016/j.bios.2015.07.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A "signal-on'' aptasensor was developed for simultaneous detection of chloramphenicols (CAP) and polychlorinated biphenyl-72 (PCB72) with a novel multi-metal ions encoded nanospherical brushes as nanotracers. To construct the assay, the respective aptamer of CAP and PCB72 labeled magnetic gold nanoparticles as capture probes (aptamer-MGPs), and their complementary single strand DNA (s-DNA) encoded metal ions (Cd(2+) and Pb(2+)) on nanospherical branched polyethylene imine brushes as tracers (s-DNA-MSPEIs), were simultaneously synthesized. After that, the capture probe and tracers were connected through a hybridization reaction between s-DNA and aptamers. In the presence of CAP and PCB72, the analytes could react with the aptamers on capture probes and release the tracers into supernatant after magnetic separation. The released tracers with metal ions (Cd(2+) and Pb(2+)) could be simultaneously detected through the square wave voltammetry (SWV) without acid dissolution, which can switch the signals of the biosensor to "on'' state. Under optimal conditions, the assay could detect CAP and PCB72 as low as 0.3 pg mL(-1) with the dynamitic range from 0.001 to 100 ng mL(-1) and exhibited excellent selectivity. More importantly, the strategy can be extended easily to other targets after changing the corresponding aptamers and other metal ions tracers, which provides a promising and facile approach in multiplex detection of ultra-trace level of pollutants in food safety without more complex separation and washing steps.
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Duman FD, Hocaoglu I, Ozturk DG, Gozuacik D, Kiraz A, Yagci Acar H. Highly luminescent and cytocompatible cationic Ag2S NIR-emitting quantum dots for optical imaging and gene transfection. NANOSCALE 2015; 7:11352-11362. [PMID: 26068022 DOI: 10.1039/c5nr00189g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of non-toxic theranostic nanoparticles capable of delivering a therapeutic cargo and providing a means for diagnosis is one of the most challenging tasks in nano-biotechnology. Gene therapy is a very important mode of therapy and polyethyleneimine (PEI) is one of the most successful vehicles for gene transfection, yet poses significant toxicity. Optical imaging utilizing quantum dots is one of the newer but fast growing diagnostic modalities, which requires non-toxic, highly luminescent materials, preferentially active in the near infrared region. Ag2S NIRQDs fit to this profile perfectly. Here, we demonstrate the aqueous synthesis of cationic Ag2S NIRQDs with a mixed coating of 2-mercaptopropionic acid (2MPA) and PEI (branched, 25 kDa), which are highly luminescent in the NIR-I window (λem = 810-840 nm) as new theranostic nanoparticles. Synergistic stabilization of the QD surface via the simultaneous use of a small molecule and a polymeric material provided the highest quantum yield, 150% (with respect to LDS 798 at pH 7.4), reported in the literature for Ag2S. These cationic particles show a dramatic improvement in cytocompatibility even without PEGylation, a strong optical signal easily detected by confocal laser microscopy and effective conjugation and transfection of the green fluorescence protein plasmid (pGFP) to HeLa and MCF-7 cell lines (40% efficiency). Overall, these Ag2S NIRQDs show great potential as new theranostics.
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Affiliation(s)
- Fatma Demir Duman
- Koc University, Graduate School of Materials Science and Engineering, Rumelifeneri Yolu, Sarıyer, 34450, Istanbul, Turkey.
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44
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Yuan Y, Zhang J, Cao Q, An L, Liang G. Intracellular Disassembly of Self-Quenched Nanoparticles Turns NIR Fluorescence on for Sensing Furin Activity in Cells and in Tumors. Anal Chem 2015; 87:6180-5. [DOI: 10.1021/acs.analchem.5b01656] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yue Yuan
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jia Zhang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qinjingwen Cao
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Linna An
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Gaolin Liang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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45
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46
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Distinguish cancer cells based on targeting turn-on fluorescence imaging by folate functionalized green emitting carbon dots. Biosens Bioelectron 2015; 64:119-25. [DOI: 10.1016/j.bios.2014.08.052] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 08/04/2014] [Accepted: 08/22/2014] [Indexed: 02/07/2023]
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47
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Wang X, Xuan H, Zhang J, Chen S, Zhang F, Zou W. Facile synthesis of fluorescent polyaniline microspheres and their use for the detection of mercury ions. NEW J CHEM 2015. [DOI: 10.1039/c5nj00907c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bright blue fluorescent polyaniline microspheres were prepared by a simple controlled oxidation under mild conditions. A simple, highly sensitive fluorometric Hg2+ probe has been constructed.
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Affiliation(s)
- Xiufang Wang
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
| | - Han Xuan
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
| | - Jun Zhang
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
| | - Shaohua Chen
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
| | - Fengjun Zhang
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
| | - Wensheng Zou
- Anhui Key Laboratory of Advanced Building Materials
- Anhui Jianzhu University
- Hefei Anhui
- P. R. China
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48
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Wang X, Deng W, Shen L, Yan M, Ge S, Yu J. A sensitive quenched electrochemiluminescent DNA sensor based on the catalytic activity of gold nanoparticle functionalized MoS2. NEW J CHEM 2015. [DOI: 10.1039/c5nj01451d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple sandwich-type ECL sensor for DNA detection based on MoS2–Au quenching the ECL signal of CdS/ZnS QDs.
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Affiliation(s)
- Xiu Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Wenping Deng
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Lei Shen
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Shenguang Ge
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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49
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Wegner KD, Hildebrandt N. Quantum dots: bright and versatile in vitro and in vivo fluorescence imaging biosensors. Chem Soc Rev 2015; 44:4792-4834. [DOI: 10.1039/c4cs00532e] [Citation(s) in RCA: 560] [Impact Index Per Article: 62.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Colourful cells and tissues: semiconductor quantum dots and their versatile applications in multiplexed bioimaging research.
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Affiliation(s)
- K. David Wegner
- NanoBioPhotonics
- Institut d'Electronique Fondamentale
- Université Paris-Sud
- 91405 Orsay Cedex
- France
| | - Niko Hildebrandt
- NanoBioPhotonics
- Institut d'Electronique Fondamentale
- Université Paris-Sud
- 91405 Orsay Cedex
- France
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50
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Jiang H, Xu G, Sun Y, Zheng W, Zhu X, Wang B, Zhang X, Wang G. A “turn-on” silver nanocluster based fluorescent sensor for folate receptor detection and cancer cell imaging under visual analysis. Chem Commun (Camb) 2015; 51:11810-3. [DOI: 10.1039/c5cc02061a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel terminal protection based label-free and “turn-on” fluorescent sensor for detection of folate receptors (FRs) and HeLa cells is developed by fluorescence resonance energy transfer (FRET) between single-walled carbon nanotubes (SWCNTs) and silver nanoclusters (AgNCs).
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Affiliation(s)
- Hong Jiang
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Gang Xu
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Yimin Sun
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Weiwei Zheng
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Xiangxiang Zhu
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Baojuan Wang
- College of Life Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Xiaojun Zhang
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
| | - Guangfeng Wang
- Anhui Key Laboratory of Chem-Biosensing
- College of Chemistry and Materials Science
- Center for Nanoscience and Nanotechnology
- Anhui Normal University
- Wuhu
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