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Chen H, Huang H, Xu H, Wu T, Xu Y, Ma X, Yi W, Chen G, Huang S, Ouyang G. Pore-Engineered Hydrogen-Bonded Supramolecular Fluorosensor for Ultrasensitive Determination of Copper Ions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308716. [PMID: 38072769 DOI: 10.1002/smll.202308716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/16/2023] [Indexed: 05/18/2024]
Abstract
The selective quantification of copper ions (Cu2+) in biosamples holds great importance for disease diagnosis, treatment, and prognosis since the Cu2+ level is closely associated with the physiological state of the human body. While it remains a long-term challenge due to the extremely low level of free Cu2+ and the potential interference by the complex matrices. Here, a pore-engineered hydrogen-bonded organic framework (HOF) fluorosensor is constructed enabling the ultrasensitive and highly selective detection of free Cu2+. Attributing to atomically precise functionalization of active amino "arm" within the HOF pores and the periodic π-conjugated skeleton, this porous HOF fluorosensor affords high affinity toward Cu2+ through double copper-nitrogen (Cu─N) coordination interactions, resulting in specific fluorescence quenching of the HOF as compared with a series of substances ranging from other metal ions, metabolites, amino acids to proteins. Such superior fluorescence quenching effect endows the Cu2+ quantification by this new HOF sensor with a wide linearity of 50-20 000 nm, a low detection limit of 10 nm, and good recoveries (89.5%-115%) in human serum matrices, outperforming most of the reported approaches. This work highlights the practicability of hydrogen-bonded supramolecular engineering for designing facile and ultrasensitive biosensors for clinical free Cu2+ determination.
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Affiliation(s)
- Haiting Chen
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haoquan Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Huiying Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Tong Wu
- Department of Radiology, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, 510630, China
| | - Yanbin Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xiaomin Ma
- Cryo-EM Center, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Guosheng Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China
| | - Siming Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Gangfeng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China
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Olmo-Alonso F, Garoz-Ruiz J, Heras A, Colina A. Normal or parallel configuration in spectroelectrochemistry? Bidimensional spectroelectroanalysis in presence of an antioxidant compound. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Chen J, Chen X, Zhang Y, Wang X, Zhou N. Screening of a Sialyllactose-Specific Aptamer and Engineering a Pair of Recognition Elements with Unique Fluorescent Characteristics for Sensitive Detection of Sialyllactose. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2628-2636. [PMID: 36700646 DOI: 10.1021/acs.jafc.2c07784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A single-stranded DNA (ssDNA) aptamer specific for 6'-sialyllactose (6'-SL) was screened through magnetic separation-based SELEX and post-SELEX truncation and used to construct unique aptamer bio-dots for sensitive detection of 6'-SL. Eighteen rounds of screening were conducted during the SELEX process. The ssDNA aptamer Apt9 (Kd = 152.3 nM) with a length of 79 nucleotides (nt) was demonstrated as the optimal aptamer candidate after affinity and specificity evaluation. Then, Apt9 was truncated and optimized according to secondary structure and molecular docking. A 35 nt truncated aptamer Apt9-1 (Kd = 91.75 nM) with higher affinity than Apt9 was finally obtained. Furthermore, Apt9-1 was used to synthesize bio-dots as a new recognition element of 6'-SL, and the aminobenzene boric acid functionalized carbon dots were employed as the other recognition element. With the respective fluorescent characteristics, the two quantum dots (QDs) were made a pair to construct a 6'-SL fluorescent biosensor. The linear detection range of the biosensor is 10 μM to 5 mM, and the detection limit is 0.9 μM. With the advantages of time-saving, high efficiency, and simplicity in the actual sample detection, the screened aptamer and dual-QD-based biosensor have broad application prospects in 6'-SL detection.
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Affiliation(s)
- Jinri Chen
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, 59 Cangwu Road, Haizhou 222005, China
| | - Xin Chen
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yuting Zhang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xiaoli Wang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Nandi Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
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Lu Z, Acter S, Teo BM, Bishop AI, Tabor RF, Vidallon MLP. Mesoporous, anisotropic nanostructures from bioinspired polymeric catecholamine neurotransmitters and their potential application as photoacoustic imaging agents. J Mater Chem B 2022; 10:9662-9670. [PMID: 36382405 DOI: 10.1039/d2tb01756c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mesoporous polydopamine (PDA) nanobowls, which can be prepared using Pluronic® F-127, ammonia, and 1,3,5-trimethylbenzene (TMB), are one of the most studied anisotropic nanoparticle systems. However, only limited reports on polymerised analogues polynorepinephrine (PNE) and polyepinephrine (PEP) exist. Herein, we present modifications to a one-pot, soft template method, originally applied to make PDA nanobowls, to fabricate new shape-anisotropic nanoparticles (mesoporous nanospheres or "nano-golf balls" and nanobowls) using PNE and PEP for the first time. These modifications include the use of different oil phases (TMB, toluene and o-xylene) and ammonia concentrations to induce anisotropic growth of PDA, PNE, and PEP particles. Moreover, this work features the application of oddly shaped PDA, PNE, and PEP nanoparticles as intravascular photoacoustic imaging enhancers in Intralipid®-India ink-based tissue-mimicking phantoms. Photoacoustic imaging experiments showed that mesoporous nanobowls exhibit stronger enhancement, in comparison to their mesoporous nano-golf ball and nanoaggregate counterparts. The photoacoustic enhancement also followed the general trend PDA > PNE > PEP due to the differences in the rates of polymerisation of the monomers and the optical absorption of the resulting polymers. Lastly, about two- to four-fold enhancement in photoacoustic signals was observed for the mesoporous nanostructures, when compared to smooth nanospheres and their nano-aggregates. These results suggest that shape manipulation can aid in overcoming the inherently lower performance of PNE and PEP as photoacoustic imaging agents, compared to PDA. Since nanomaterials with mesoporous and anisotropic morphologies have significant, unexplored potential with emerging applications, these results set the groundwork for future studies on photoacoustically active oddly shaped PNE- and PEP-based nanosystems.
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Affiliation(s)
- Zhenzhen Lu
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.
| | - Shahinur Acter
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.
| | - Boon Mian Teo
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.
| | - Alexis I Bishop
- School of Physics and Astronomy, Monash University, Clayton, VIC, 3800, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.
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Vidallon MLP, Teo BM, Bishop AI, Tabor RF. Next-Generation Colloidal Materials for Ultrasound Imaging Applications. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1373-1396. [PMID: 35641393 DOI: 10.1016/j.ultrasmedbio.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 06/15/2023]
Abstract
Ultrasound has important applications, predominantly in the field of diagnostic imaging. Presently, colloidal systems such as microbubbles, phase-change emulsion droplets and particle systems with acoustic properties and multiresponsiveness are being developed to address typical issues faced when using commercial ultrasound contrast agents, and to extend the utility of such systems to targeted drug delivery and multimodal imaging. Current technologies and increasing research data on the chemistry, physics and materials science of new colloidal systems are also leading to the development of more complex, novel and application-specific colloidal assemblies with ultrasound contrast enhancement and other properties, which could be beneficial for multiple biomedical applications, especially imaging-guided treatments. In this article, we review recent developments in new colloids with applications that use ultrasound contrast enhancement. This work also highlights the emergence of colloidal materials fabricated from or modified with biologically derived and bio-inspired materials, particularly in the form of biopolymers and biomembranes. Challenges, limitations, potential developments and future directions of these next-generation colloidal systems are also presented and discussed.
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Affiliation(s)
| | - Boon Mian Teo
- School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Alexis I Bishop
- School of Physics and Astronomy, Monash University, Clayton, Victoria, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, Victoria, Australia.
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Achadu OJ, Abe F, Hossain F, Nasrin F, Yamazaki M, Suzuki T, Park EY. Sulfur-doped carbon dots@polydopamine-functionalized magnetic silver nanocubes for dual-modality detection of norovirus. Biosens Bioelectron 2021. [PMID: 34403935 DOI: 10.1016/j.mtphys.2021.100576] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Synergistic dual-mode optical platforms are up-and-coming detection tools in the diagnosis and management of infectious diseases. Here, novel dual-modality fluorescence (FL) and surface-enhanced Raman scattering (SERS) techniques have been integrated into a single probe for the rapid and ultrasensitive detection of norovirus (NoV). The developed FL-SER-based biosensor relies on the dual-signal enhancements of newly synthesized sulfur-doped agar-derived carbon dots (S-agCDs). The antigen-antibody immunoreaction results in forming a core-satellite immunocomplex between anti-NoV antibody-conjugated S-agCDs and polydopamine-functionalized magnetic silver nanocubes [poly (dop)-MNPs-Ag NCs]. By deploying an immunomagnetic enrichment protocol and performing the SERS modality on a single-layer graphene substrate, norovirus-like particles (NoV-LPs) were detected across a wide range of 1 fg mL-1 - 10 ng mL-1 with an excellent limit of detection of 0.1 fg mL-1. The combined advantage of the dual-signaling properties of the biosensor was demonstrated using FL confocal imaging for "hotspots" tracking prior to SERS detection of clinical NoV in fecal specimen down to ⁓10 RNA copies mL-1. The proposed dual-modality biosensor's performance increases the prospect of a rapid and low-cost sensitive NoV detection and surveillance option for public health.
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Affiliation(s)
- Ojodomo J Achadu
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Fuyuki Abe
- Department of Microbiology, Shizuoka Institute of Environment and Hygiene, 232-1, Yainaba, Fujieda, 426-0083, Japan.
| | - Farzana Hossain
- Laboratory of Biotechnology, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan.
| | - Fahmida Nasrin
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Masahito Yamazaki
- Research Institute of Electronics, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Tetsuro Suzuki
- Department of Infectious Diseases, Hamamatsu University School of Medicine, 1-20-1 Higashi-ku, Handa-yama, Hamamatsu, 431-3192, Japan.
| | - Enoch Y Park
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan; Laboratory of Biotechnology, Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
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Jiang Q, Liu L, Li Q, Cao Y, Chen D, Du Q, Yang X, Huang D, Pei R, Chen X, Huang G. NIR-laser-triggered gadolinium-doped carbon dots for magnetic resonance imaging, drug delivery and combined photothermal chemotherapy for triple negative breast cancer. J Nanobiotechnology 2021; 19:64. [PMID: 33653352 PMCID: PMC7923633 DOI: 10.1186/s12951-021-00811-w] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/19/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Owing to high genetic diversities of tumor cells and low response rate of standard chemotherapy, patients with triple negative breast cancer (TNBC) have short progression-free survivals and poor outcomes, which need to explore an effective approach to improve therapeutic efficacy. METHODS Novel gadolinium doped carbon dots (Gd@CDs) have been designed and prepared through hydrothermal method with 3,4-dihydroxyhydrocinnamic acid, 2,2'-(ethylenedioxy)bis(ethylamine) and gadolinium chloride. The synthesized nanostructures were characterized. Taking advantage of good biocompatibility of Gd@CDs, a nanoplatform based on Gd@CDs has been developed to co-deliver chemotherapy drug doxorubicin hydrochloride (Dox) and a near-infrared (NIR) photothermal agent, IR825 for magnetic resonance imaging (MRI) guided photothermal chemotherapy for TNBC. RESULTS The as-synthesized Dox@IR825@Gd@CDs displayed favorable MRI ability in vivo. Upon NIR laser irradiation, Dox@IR825@Gd@CDs could convert the NIR light to heat and efficiently inhibit tumor growth through photothermal chemotherapy in vitro and in vivo. Additionally, the impact of photothermal chemotherapy on the murine motor coordination was assessed by rotarod test. Dox@IR825@Gd@CDs presented low toxicity and high photothermal chemotherapy efficiency. CONCLUSION A noble theranostic nanoplatform (Dox@IR825@Gd@CDs) was developed that could be tailored to achieve loading of Dox and IR825, intracellular delivery, favorable MRI, excellent combination therapy with photothermal therapy and chemotherapy to enhance therapeutic effect against TNBC cells. This study will provide a promising strategy for the development of Gd-based nanomaterials for MRI and combinational therapy for TNBC.
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Affiliation(s)
- Qunjiao Jiang
- School of Public Health, Guangxi Medical University, Nanning, 530000, China
| | - Li Liu
- School of Public Health, Guangxi Medical University, Nanning, 530000, China
| | - Qiuying Li
- School of Public Health, Guangxi Medical University, Nanning, 530000, China
| | - Yi Cao
- Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Dong Chen
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007, China
| | - Qishi Du
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007, China
| | - Xiaobo Yang
- School of Public Health, Guangxi Medical University, Nanning, 530000, China
| | - Dongping Huang
- School of Public Health, Guangxi Medical University, Nanning, 530000, China.
| | - Renjun Pei
- Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
| | - Xing Chen
- School of Public Health, Guangxi Medical University, Nanning, 530000, China.
| | - Gang Huang
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007, China.
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Gerelkhuu Z, Huy BT, Jung D, Sharipov M, Lee YI. Selective optosensing of iron(III) ions in HeLa cells using NaYF 4:Yb 3+/Tm 3+ upconversion nanoparticles coated with polyepinephrine. Anal Bioanal Chem 2021; 413:1363-1371. [PMID: 33388932 DOI: 10.1007/s00216-020-03099-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/31/2020] [Accepted: 11/26/2020] [Indexed: 11/25/2022]
Abstract
Novel polyepinephrine-modified NaYF4:Yb,Tm upconversion luminescent nanoparticles (UCNP@PEP) were prepared via the self-polymerization of epinephrine on the surfaces of the UCNPs for selective sensing of Fe3+ inside a cell and for intracellular imaging. The proposed UCNP@PEP probe is a strong blue light emitter (λmax = 474 nm) upon exposure to an excitation wavelength of 980 nm. The probe was used for detecting Fe3+ owing to the complexation reaction between UCNP@PEP and Fe3+, resulting in reduced upconversion luminescence (UCL) intensity. The proposed probe has a detection limit of 0.2 μM and a good linear range of 1-10 μM for sensing Fe3+ ions. Moreover, the UCNP@PEP probe displays high cell viability (90%) and is feasible for intracellular imaging. The ability of the probe to sense Fe3+ in a human serum sample was tested and shows promising output for diagnostic purposes. The prepared UCNP@PEP probe was characterized by using UV-visible (UV-Vis) absorption spectrometry, fluorescence (FL) spectrometry, field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR).
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Affiliation(s)
- Zayakhuu Gerelkhuu
- Department of Chemistry, Changwon National University, Changwon, 51140, Republic of Korea
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, 04763, Republic of Korea
| | - Bui The Huy
- Department of Chemistry, Changwon National University, Changwon, 51140, Republic of Korea
| | - Dasom Jung
- Department of Chemistry, Changwon National University, Changwon, 51140, Republic of Korea
| | - Mirkomil Sharipov
- Department of Chemistry, Changwon National University, Changwon, 51140, Republic of Korea
| | - Yong-Ill Lee
- Ceramics and Biomaterials Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, 700000, Viet Nam.
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 700000, Viet Nam.
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Liu J, Guo Y, Dong B, Sun J, Lyu J, Sun L, Hu S, Xu L, Bai X, Xu W, Mintova S, Song H. Water-soluble coumarin oligomer based ultra-sensitive iron ion probe and applications. SENSORS AND ACTUATORS B: CHEMICAL 2020; 320:128361. [DOI: 10.1016/j.snb.2020.128361] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
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Yin H, Gao D, Qiu Y, Yi G, Li J, Dong Y, Zhang K, Xia Z, Fu Q. Carbon source self-heating: ultrafast, energy-efficient and room temperature synthesis of highly fluorescent N, S-codoped carbon dots for quantitative detection of Fe(iii) ions in biological samples. NANOSCALE ADVANCES 2020; 2:1483-1492. [PMID: 36132331 PMCID: PMC9419051 DOI: 10.1039/c9na00806c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 02/22/2020] [Indexed: 06/15/2023]
Abstract
In recent years, photoluminescent (PL) carbon dots (CDs) have attracted enormous attention because of their many fascinating properties. However, the traditional synthesis routes of PL CDs usually suffer from relatively low quantum yields (QYs) and require complicated operation processes as well as lots of externally supplied energy. Herein, we report a room temperature, green, ultrafast and energy-efficient route for large scale synthesis of highly PL N, S-codoped CDs without any external energy supply. The N, S-codoped CDs are prepared through a novel carbon source self-heating strategy, using the sole precursor tetraethylenepentamine (TEPA) simultaneously as the carbon, nitrogen and heat source, triggered by the heat initiator sodium persulfate (Na2S2O8). The large amount of heat released from Na2S2O8-triggered oxidation of TEPA could effectively promote the spontaneous polymerization and carbonization of TEPA precursors themselves as well as the in situ co-doping of sulfur, which had marked synergistic effects on the fluorescence enhancement of CDs, eventually leading to the high-yield (58.0%) preparation of highly fluorescent N, S-codoped CDs (QY 26.4%) at room temperature within 2 min. Moreover, the fluorescence of N, S-codoped CDs could be selectively quenched by Fe3+ ions in the presence of EDTA, in an ultra-wide range of 0.2-600 μM, with a detection limit of 0.10 μM. Ultimately, the fluorescent nanoprobe was successfully used for the quantitative detection of Fe3+ in human serum samples, indicating its great potential for sensing and biomedical applications.
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Affiliation(s)
- Honggang Yin
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
| | - Die Gao
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
| | - Yan Qiu
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
| | - Gaoyi Yi
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
| | - Jun Li
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University Chongqing 400030 China
| | - Yingying Dong
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University Chongqing 400030 China
| | - Kailian Zhang
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 China
| | - Qifeng Fu
- School of Pharmacy, Southwest Medical University Luzhou Sichuan 646000 China
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Liang JY, Han L, Liu SG, Ju YJ, Li NB, Luo HQ. Carbon dots-based fluorescent turn off/on sensor for highly selective and sensitive detection of Hg 2+ and biothiols. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117260. [PMID: 31226617 DOI: 10.1016/j.saa.2019.117260] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/06/2019] [Accepted: 06/08/2019] [Indexed: 05/20/2023]
Abstract
In this work, sodium salicylate and ethylenediamine (EDA) are used as the precursors to synthesize green fluorescent carbon dots (CDs). The CDs have some attractive properties, including better oxidation resistance, good water solubility, and excellent stability in high ionic strength solutions in a pH range of 6.0-10.0. Compared to other metal ions, only Hg2+ can quench the fluorescence of CDs, and with the introduction of biothiols, the fluorescence of the CDs/Hg2+ system can be recovered. Therefore, a turn off/on fluorescent sensor is constructed using CDs as a fluorescent probe, and the sensor is applied to the detection of Hg2+ and biothiols (glutathione, homocysteine and cysteine). In addition, the fluorescent sensor exhibits excellent selectivity and sensitivity. The linear range of Hg2+ is 0.05-10 μM with the detection limit of 44 nM. Glutathione, homocysteine, and cysteine have a linear response in the range of 0.5-10 μM with the limit of detection of 80, 76, and 69 nM, respectively. Furthermore, the fluorescence method is successfully used to detect Hg2+ in actual water samples and biothiols in human plasma.
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Affiliation(s)
- Jia Yu Liang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Lei Han
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - 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, PR China
| | - Yan Jun Ju
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR 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, PR 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, PR China.
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A facile and label-free ratiometric optical sensor for selective detection of norepinephrine by combining second-order scattering and fluorescence signals. Anal Bioanal Chem 2019; 411:3081-3089. [PMID: 31076818 DOI: 10.1007/s00216-019-01762-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/24/2019] [Accepted: 03/06/2019] [Indexed: 01/07/2023]
Abstract
In this work, a facile and label-free ratiometric sensor is constructed for selective determination of norepinephrine (NE) by coupling second-order scattering (SOS) and fluorescence, two different and independent optical signals. Herein, polyethyleneimine (PEI) dilute solution medium shows an intensive SOS signal without any fluorescence response. Interestingly, NE can be selectively induced by PEI to emit bright fluorescence, and meanwhile causes an observable decrease in the SOS signal due to the interactions between NE and PEI. The simultaneous variation of the two independent signals can be used for ratiometric sensing of NE. Under the optimal conditions, the resultant ratiometric sensor displays high sensitivity and selectivity toward NE by simultaneously monitoring fluorescence and SOS signals with the same excitation wavelength. The proposed sensor exhibits a good linear relationship versus NE concentration in the range of 10.0 nM-45.0 μM with a detection limit of 2.0 nM (S/N = 3) and has been successfully applied to the determination of NE in real samples without the use of any extra reagent. The combination of fluorescence and SOS signals provides a new scheme for ratiometric sensor design, greatly simplifying experimental procedure and effectively enhancing detection accuracy. Moreover, the proposed analytical strategy further broadens the application of dilute solutions of polymers in research into optical sensor and green analytical chemistry. Graphical abstract.
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Wang P, Li H, Hassan MM, Guo Z, Zhang ZZ, Chen Q. Fabricating an Acetylcholinesterase Modulated UCNPs-Cu 2+ Fluorescence Biosensor for Ultrasensitive Detection of Organophosphorus Pesticides-Diazinon in Food. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4071-4079. [PMID: 30888170 DOI: 10.1021/acs.jafc.8b07201] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this study, a highly sensitive upconversion fluorescence (FL) biosensor was developed for the detection of organophosphorus pesticides (OPs) based on an acetylcholinesterase (AChE) modulated FL "off-on-off" strategy. The luminescence of synthesized UCNPs could be quenched strongly by Cu2+ due to an energy transfer effect. Upon addition of AChE and acetylthiocholine (ATCh), the enzymatic hydrolysate (thiocholine) could seize Cu2+ from UCNPs-Cu2+ mixture, resulting in the quenched FL triggered on. OPs could irreversibly impede the activity of AChE, which caused the formation of thiocholine to decrease, thus, reduced the recovery of FL. Under the optimum conditions, a linear detection range from 0.1 to 50 ng/mL was achieved for the representative OPs (diazinon) with LOD of 0.05 ng/mL. Furthermore, the ability of the biosensor to detect OPs was also confirmed in adulterated environmental and agricultural samples. In validation analysis, the proposed sensor showed satisfactory results ( p > 0.05) with GC-MS.
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Affiliation(s)
- Pingyue Wang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Huanhuan Li
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Md Mehedi Hassan
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Zhiming Guo
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Zheng-Zhu Zhang
- State Key Laboratory of Tea Plant Biology and Utilization , Anhui Agricultural University , Hefei 230036 , China
| | - Quansheng Chen
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
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14
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Label-free fluorescent discrimination and detection of epinephrine and dopamine based on bioinspired in situ copolymers and excitation wavelength switch. Anal Chim Acta 2019; 1054:167-175. [DOI: 10.1016/j.aca.2018.12.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/01/2018] [Accepted: 12/15/2018] [Indexed: 12/18/2022]
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15
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Gao ZF, Wang XY, Gao JB, Xia F. Rapid preparation of polydopamine coating as a multifunctional hair dye. RSC Adv 2019; 9:20492-20496. [PMID: 35514683 PMCID: PMC9065481 DOI: 10.1039/c9ra03177d] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/24/2019] [Indexed: 01/09/2023] Open
Abstract
Dyeing of hair is an interesting research field within the cosmetics industry due to the increasingly aging population worldwide. In order to reduce the toxicity of hair dye materials and improve the speed of hair dyeing, we developed an in situ polymerization of dopamine catalyzed by copper sulfate and hydrogen peroxide on the hair surface to form a polydopamine (PDA) coating for hair dyeing. The morphology and elements of polydopamine on hair were characterized. The durability, thermal insulation, and bacteriostasis performance of PDA hair dye were discussed. The results showed that human hair can be dyed by PDA in as little as 5 min with comparable dyeing results to those of commercial products. PDA-based hair dye displayed significant durability, and barely faded after continuous washing with shampoo (30 times). After PDA dyeing, the thermal insulation performance was enhanced, which could prevent external heat invasion in summer and local heat dissipation in winter, increasing the level of comfort. In addition, remarkable antibacterial properties were demonstrated, which could effectively prevent the occurrence of bacterial inflammation on the scalp. These results might push forward the evolution of nanomaterial-based hair dyes with promising green, healthy, and user-friendly advantages. A rapid and effective polydopamine-based method for dyeing human hair was demonstrated, which achieved a significant black color, remarkable durability, enhanced thermal insulation performance, and anti-bacterial property.![]()
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Affiliation(s)
- Zhong Feng Gao
- Collaborative Innovation Center of Tumor Marker Detection Technology
- Equipment and Diagnosis-Therapy Integration in Universities of Shandong
- Shandong Province Key Laboratory of Detection Technology for Tumor Markers
- School of Chemistry and Chemical Engineering
- Linyi University
| | - Xin Yu Wang
- Collaborative Innovation Center of Tumor Marker Detection Technology
- Equipment and Diagnosis-Therapy Integration in Universities of Shandong
- Shandong Province Key Laboratory of Detection Technology for Tumor Markers
- School of Chemistry and Chemical Engineering
- Linyi University
| | - Jian Bang Gao
- Department of Natural Science
- Linyi University
- Linyi 273400
- China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Material Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
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16
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A wide-color-varying ratiometric nanoprobe for detection of norepinephrine in urine samples. Anal Chim Acta 2018; 1039:124-131. [DOI: 10.1016/j.aca.2018.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/11/2018] [Accepted: 07/17/2018] [Indexed: 12/18/2022]
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17
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Liu G, Zhao J, Lu S, Wang S, Sun J, Yang X. Polymethyldopa Nanoparticles-Based Fluorescent Sensor for Detection of Tyrosinase Activity. ACS Sens 2018; 3:1855-1862. [PMID: 30149701 DOI: 10.1021/acssensors.8b00684] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Being a typical copper-containing oxidase, tyrosinase plays critical roles in biological activity, and its aberrant expression might cause diverse skin diseases. Herein, we, for the first time, have found an interesting green fluorogenic reaction between methyldopa and ethanolamine. By combining transmission electron microscopy, UV-vis absorption spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and MALDI-TOF mass spectrum analysis, we have confirmed that there is a reliable method for preparing the bright green fluorescent polymethyldopa nanoparticles (PMNPs) by simply mixing methyldopa and ethanolamine at room temperature. Inspired by such a simple and convenient fluorogenic reaction, a novel polymethyldopa nanoparticles-based fluorescent sensor for detection of tyrosinase activity was developed by using the commercially available metyrosine as a substrate, accompanied by the tyrosinase-catalyzed specific conversion of metyrosine into methyldopa. According to the intrinsic sensitivity/selectivity of fluorescence technology and unambiguous response mechanism, our fluorescent sensor exhibits excellent sensing performance and can be utilized in the determination of the tyrosinase activity in real biological samples and inhibitor screening.
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Affiliation(s)
- Guoyong Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiahui Zhao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shasha Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shuang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xiurong Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
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18
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Yin H, Zhang K, Wang L, Zhou K, Zeng J, Gao D, Xia Z, Fu Q. Redox modulation of polydopamine surface chemistry: a facile strategy to enhance the intrinsic fluorescence of polydopamine nanoparticles for sensitive and selective detection of Fe 3. NANOSCALE 2018; 10:18064-18073. [PMID: 30229779 DOI: 10.1039/c8nr05878d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In recent years, polydopamine (PDA) nanoparticles have attracted considerable attention in different research fields because of their many fascinating physicochemical properties. However, as an analogue of naturally occurring melanin, PDA nanoparticles (PDANPs) typically exhibit weak fluorescence properties. Herein, we report a facile one-pot method for synthesizing bright blue luminescent PDANPs through the redox modulation of PDA surface chemistry. The composition and morphology of the resultant NPs were systematically characterized by transmission electron microscopy and several spectroscopy methods, which verified the successful fabrication of PDANPs. More importantly, comparative chemical analysis of dopamine polymerization revealed the significant impacts of synthesis conditions and PDA surface chemistry on the luminescence properties of PDANPs. Remarkably, in addition to their excellent water-solubility, salt-tolerance and high photostability under extreme pH conditions, the as-prepared PDANPs possess the highest quantum yield (5.1%) among all the reported intrinsic fluorescent PDANPs. Moreover, based on the coordination interaction between phenolic hydroxyl groups of PDANPs and ferric ions (Fe3+), the synthesized PDANPs were successfully utilized as a turn-off sensing platform for sensitive and selective detection of Fe3+ without using any additional targeting molecules. Upon increasing the Fe3+ concentration in the range from 0.5 to 20 μM, the fluorescence intensity of PDANPs decreased linearly. The detection limit of Fe3+ was 0.15 μM. Finally, this fluorescent sensor was successfully used to determine Fe3+ in natural water samples, showing good prospects for practical applications and may pave the way for the development of new rational methodologies for further enhancing the intrinsic fluorescence of PDA and fabricating other novel fluorescent organic nanoparticles.
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Affiliation(s)
- Honggang Yin
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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19
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pH-dependent selective ion exchange based on (ethylenediamintetraacetic acid-nickel)-layered double hydroxide to catalyze the polymerization of aniline for detection of Cu2+ and Fe3+. Talanta 2018; 187:287-294. [DOI: 10.1016/j.talanta.2018.04.102] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/28/2018] [Accepted: 04/29/2018] [Indexed: 12/28/2022]
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20
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Ma H, Fan Q, Fan B, Zhang Y, Fan D, Wu D, Wei Q. Formation of Homogeneous Epinephrine-Melanin Solutions to Fabricate Electrodes for Enhanced Photoelectrochemical Biosensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7744-7750. [PMID: 29884025 DOI: 10.1021/acs.langmuir.8b00264] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of a simple but effective surface modification method is very important for the construction of biosensing interfaces. In this work, a postsynthetic water-soluble epinephrine-melanin (EPM) prepared from the self-polymerization of epinephrine has been demonstrated as an alternative of the widely used in situ formed polydopamine (PDA) for the surface coating of TiO2 nanoparticles and the construction of a photoelectrochemical (PEC) biosensing interface. In contrast to the formation of insoluble aggregates in solution for dopamine, a homogeneous solution was obtained for epinephrine after the self-polymerization. The use of EPM as a postsynthetic material enables the surface coating of TiO2 with the simple drop-casting method. Compared with the widely used dip-coating method for in situ PDA modification, the developed drop-casting method based on the use of water-soluble postsynthetic EPM saves more time, avoids the waste of bulk solution, and undoubtedly decreases the batch-to-batch inconsistencies. The simple coating of commercially available TiO2 nanoparticles with EPM greatly enhances the PEC performance due to the charge transfer property of EPM. The application of EPM in the construction of the PEC biosensing interface was demonstrated by the immobilization of a model biorecognition element (prostate specific antigen (PSA) antibody) onto EPM modified indium tin oxide (ITO) photoanode. Sensitive detection of PSA with high selectivity and stability was obtained on the basis of the biological recognition ability of PSA antibody. This work may renew the use of postsynthetic melanin-like biopolymers in other fields.
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Affiliation(s)
- Hongmin Ma
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Qi Fan
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Bobo Fan
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Yong Zhang
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Dawei Fan
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Dan Wu
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan , 250022 , China
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21
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Xiao N, Liu SG, Mo S, Li N, Ju YJ, Ling Y, Li NB, Luo HQ. Highly selective detection of p-nitrophenol using fluorescence assay based on boron, nitrogen co-doped carbon dots. Talanta 2018; 184:184-192. [PMID: 29674031 DOI: 10.1016/j.talanta.2018.02.114] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/22/2018] [Accepted: 02/28/2018] [Indexed: 01/18/2023]
Abstract
p-Nitrophenol (p-NP) contaminants seriously endanger environmental and living beings health, hence to establish a sensitive and selective method is of great importance for the determination of p-NP. In this work, boron and nitrogen co-doped carbon dots (B,N-CDs) were synthesized by one-step hydrothermal method using 3-aminophenylboronic acid as the sole precursor. The product was characterized through high-resolution transmission electron microscopy, fluorescence spectroscopy, UV-visible absorption spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Without any functionalized modification, B,N-CDs can be directly applied as a 'turn-off' fluorescent probe for rapid, highly selective, and sensitive detection of p-NP. The fluorescent sensor based on the B,N-CDs exhibited a broad linear response to the concentration of p-NP in the range of 0.5 - 60 μM and 60 - 200 μM, respectively, and provided a detection limit of 0.2 μM. It was found that only the absorption spectrum of p-NP has a wide overlap with the fluorescence excitation and emission spectra of B,N-CDs compared to those of other representative analogues. The response mechanism was due to the inner filter effect and the formation of dynamic covalent B-O bonds between B,N-CDs and p-NP, which endowed the sensing platform with the rapid response and high selectivity to p-NP. Finally, the sensor showed the practicability of p-NP determination in environmental water samples.
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Affiliation(s)
- Na Xiao
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - 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, PR China
| | - Shi Mo
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 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, PR China
| | - Yan Jun Ju
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR 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, PR 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, PR 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, PR China.
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22
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Gu T, Zou W, Gong F, Xia J, Chen C, Chen X. A specific nanoprobe for cysteine based on nitrogen-rich fluorescent quantum dots combined with Cu2+. Biosens Bioelectron 2018; 100:79-84. [DOI: 10.1016/j.bios.2017.08.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/29/2017] [Accepted: 08/12/2017] [Indexed: 01/21/2023]
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23
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Ozhukil Kollath V, Derakhshandeh M, Mayer FD, Mudigonda T, Islam MN, Trifkovic M, Karan K. Fluorescent polycatecholamine nanostructures as a versatile probe for multiphase systems. RSC Adv 2018; 8:31967-31971. [PMID: 35547475 PMCID: PMC9085718 DOI: 10.1039/c8ra05372c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/17/2018] [Indexed: 11/21/2022] Open
Abstract
Shape and size controlled nanostructures are critical for nanotechnology and have versatile applications in understanding interfacial phenomena of various multi-phase systems. Facile synthesis of fluorescent nanostructures remains a challenge from conventional precursors. In this study, bio-inspired catecholamines, dopamine (DA), epinephrine (EP) and levodopa (LDA), were used as precursors and fluorescent nanostructures were synthesized via a simple one pot method in a water–alcohol mixture under alkaline conditions. DA and EP formed fluorescent spheres and petal shaped structures respectively over a broad spectrum excitation wavelength, whereas LDA did not form any particular structure. However, the polyepinephrine (PEP) micropetals were formed by weaker interactions as compared to covalently linked polydopamine (PDA) nanospheres, as revealed by NMR studies. Application of these fluorescent structures was illustrated by their adsorption behavior at the oil/water interface using laser scanning confocal microscopy. Interestingly, PDA nanospheres showed complete coverage of the oil/water interface despite its hydrophilic nature, as compared to hydrophobic PEP micropetals which showed a transient coverage of the oil/water interface but mainly self-aggregated in the water phase. The reported unique fluorescent organic structures will play a key role in understanding various multi-phase systems used in aerospace, biomedical, electronics and energy applications. Shape and size controlled nanostructures are critical for nanotechnology and have versatile applications in understanding interfacial phenomena of various multi-phase systems.![]()
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Affiliation(s)
| | - Maziar Derakhshandeh
- Department of Chemical and Petroleum Engineering
- The University of Calgary
- Calgary
- Canada
| | - Francis D. Mayer
- Department of Chemical and Petroleum Engineering
- The University of Calgary
- Calgary
- Canada
| | - Thanmayee Mudigonda
- Department of Chemical and Petroleum Engineering
- The University of Calgary
- Calgary
- Canada
| | | | - Milana Trifkovic
- Department of Chemical and Petroleum Engineering
- The University of Calgary
- Calgary
- Canada
| | - Kunal Karan
- Department of Chemical and Petroleum Engineering
- The University of Calgary
- Calgary
- Canada
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24
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An ion-imprinted material embedded carbon quantum dots for selective fluorometric determination of lithium ion in water samples. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2493-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Wang F, Zhang C, Xue Q, Li H, Xian Y. Label-free upconversion nanoparticles-based fluorescent probes for sequential sensing of Cu 2+ , pyrophosphate and alkaline phosphatase activity. Biosens Bioelectron 2017; 95:21-26. [DOI: 10.1016/j.bios.2017.04.010] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/25/2017] [Accepted: 04/10/2017] [Indexed: 01/30/2023]
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26
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Highly fluorescent nitrogen-doped carbon dots derived from Phyllanthus acidus utilized as a fluorescent probe for label-free selective detection of Fe 3+ ions, live cell imaging and fluorescent ink. Biosens Bioelectron 2017; 99:303-311. [PMID: 28780346 DOI: 10.1016/j.bios.2017.07.076] [Citation(s) in RCA: 316] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/26/2017] [Accepted: 07/30/2017] [Indexed: 02/07/2023]
Abstract
A facile, economical and one-step hydrothermal method is used to synthesize highly durable fluorescent nitrogen-doped carbon dots (FNCDs) by utilizing Phyllanthus acidus (P. acidus) and aqueous ammonia as the carbon and nitrogen sources, respectively. The synthesized FNCDs have an average size of 4.5±1nm and showed bright blue fluorescence under the irradiation of UV-light at an excitation wavelength of 365nm. It exhibits a quantum yield (QY) of 14% at an excitation wavelength of 350nm with maximum emission at 420nm. X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy characterizations clearly showed the formation of FNCDs that predominantly consists of nitrogen and hydroxyl groups which can provide more adsorption sites. In addition, the above study reveals the successful bonding of nitrogen with carbon (C-N) in the FNCDs. The synthesized FNCDs with high QY can be used as efficient fluorescent probes for the detection of Fe3+. Based on the linear relationship between normalized fluorescence intensity and concentration of Fe3+ ions, the prepared FNCDs can be used for label-free sensitive and selective detection of Fe3+ ions in a wide concentration range of 2-25μM with a detection limit of 0.9μM. The present study proves that synthesized FNCDs has durable fluorescence, soluble in water very well and thus act as a promising candidate for the diverse applications such as label-free sensitive and selective detection of Fe3+, fluorescent ink and cellular imaging with good biocompatibility and low cytotoxicity.
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27
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Shen X, Li T, Chen Z, Geng Y, Xie X, Li S, Yang H, Wu C, Liu Y. Luminescent/magnetic PLGA-based hybrid nanocomposites: a smart nanocarrier system for targeted codelivery and dual-modality imaging in cancer theranostics. Int J Nanomedicine 2017; 12:4299-4322. [PMID: 28652734 PMCID: PMC5473604 DOI: 10.2147/ijn.s136766] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cancer diagnosis and treatment represent an urgent medical need given the rising cancer incidence over the past few decades. Cancer theranostics, namely, the combination of diagnostics and therapeutics within a single agent, are being developed using various anticancer drug-, siRNA-, or inorganic materials-loaded nanocarriers. Herein, we demonstrate a strategy of encapsulating quantum dots, superparamagnetic Fe3O4 nanocrystals, and doxorubicin (DOX) into biodegradable poly(d,l-lactic-co-glycolic acid) (PLGA) polymeric nanocomposites using the double emulsion solvent evaporation method, followed by coupling to the amine group of polyethyleneimine premodified with polyethylene glycol-folic acid (PEI-PEG-FA [PPF]) segments and adsorption of vascular endothelial growth factor (VEGF)-targeted small hairpin RNA (shRNA). VEGF is important for tumor growth, progression, and metastasis. These drug-loaded luminescent/magnetic PLGA-based hybrid nanocomposites (LDM-PLGA/PPF/VEGF shRNA) were fabricated for tumor-specific targeting, drug/gene delivery, and cancer imaging. The data showed that LDM-PLGA/PPF/VEGF shRNA nanocomposites can codeliver DOX and VEGF shRNA into tumor cells and effectively suppress VEGF expression, exhibiting remarkable synergistic antitumor effects both in vitro and in vivo. The cell viability waŝ14% when treated with LDM-PLGA/PPF/VEGF shRNA nanocomposites ([DOX] =25 μg/mL), and in vivo tumor growth data showed that the tumor volume decreased by 81% compared with the saline group at 21 days postinjection. Magnetic resonance and fluorescence imaging data revealed that the luminescent/magnetic hybrid nanocomposites may also be used as an efficient nanoprobe for enhanced T2-weighted magnetic resonance and fluorescence imaging in vitro and in vivo. The present work validates the great potential of the developed multifunctional LDM-PLGA/PPF/VEGF shRNA nanocomposites as effective theranostic agents through the codelivery of drugs/genes and dual-modality imaging in cancer treatment.
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Affiliation(s)
- Xue Shen
- Department of Biophysics, School of Life Science and Technology
| | - Tingting Li
- Department of Biophysics, School of Life Science and Technology
| | - Zhongyuan Chen
- Department of Biophysics, School of Life Science and Technology
| | - Yue Geng
- Department of Biophysics, School of Life Science and Technology
| | - Xiaoxue Xie
- Department of Biophysics, School of Life Science and Technology
| | - Shun Li
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Hong Yang
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Chunhui Wu
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Yiyao Liu
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
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28
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A selective and sensitive optical sensor for dissolved ammonia detection via agglomeration of fluorescent Ag nanoclusters and temperature gradient headspace single drop microextraction. Biosens Bioelectron 2017; 91:155-161. [DOI: 10.1016/j.bios.2016.11.062] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 11/15/2016] [Accepted: 11/27/2016] [Indexed: 01/27/2023]
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29
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Huang G, Chen X, Wang C, Zheng H, Huang Z, Chen D, Xie H. Photoluminescent carbon dots derived from sugarcane molasses: synthesis, properties, and applications. RSC Adv 2017. [DOI: 10.1039/c7ra09002a] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Photoluminescent carbon dots derived from sugarcane molasses were investigatedviacellular imaging and sensing for Fe3+or sunset yellow. The underlying mechanism of fluorescence quenching in the C-dots/sunset yellow system was also studied.
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Affiliation(s)
- Gang Huang
- State Key Laboratory of Non-food Biomass and Enzyme Technology
- Guangxi Academy of Sciences
- Nanning
- China
- School of Chemistry and Chemical Engineering
| | - Xing Chen
- School of Public Health
- Guangxi Medical University
- Nanning
- China
| | - Cong Wang
- Medical Examination Center
- The People’s Hospital of Guangxi Zhuang Autonomous Region
- Nanning
- China
| | - Hongyu Zheng
- Medical Examination Center
- The People’s Hospital of Guangxi Zhuang Autonomous Region
- Nanning
- China
| | - Zuqiang Huang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Dong Chen
- State Key Laboratory of Non-food Biomass and Enzyme Technology
- Guangxi Academy of Sciences
- Nanning
- China
| | - Haihui Xie
- Medical Examination Center
- The Eighth People’s Hospital of Nanning
- China
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30
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Dong JX, Wang ZL, Yang Y, Gao ZF, Li BL, Jiang HH, Li NB, Luo HQ. Bio-friendly Maillard reaction fluorescent products from glutathione and ascorbic acid for the rapid and label-free detection of Fe3+in living cells. J Mater Chem B 2017; 5:707-713. [DOI: 10.1039/c6tb02449a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Non-cytotoxic Maillard reaction fluorescent products were used as an imaging probe for Fe3+detection in living cells.
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Affiliation(s)
- Jiang Xue Dong
- 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
| | - Zi Li Wang
- College of Animal Science and Technology
- Southwest University
- Chongqing 400715
- P. R. China
| | - Yue Yang
- College of Animal Science and Technology
- Southwest University
- Chongqing 400715
- P. R. China
| | - Zhong Feng Gao
- 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
| | - Bang Lin 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
| | - Hui Hui Jiang
- College of Animal Science and Technology
- 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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