1
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Zheng CW, Lai YS, Luo YH, Cai Y, Wu W, Rittmann BE. A two-stage design enhanced biodegradation of high concentrations of a C16-alkyl quaternary ammonium compound in oxygen-based membrane biofilm reactors. WATER RESEARCH 2024; 250:120963. [PMID: 38118251 DOI: 10.1016/j.watres.2023.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 12/22/2023]
Abstract
Quaternary ammonia compounds (QAC), such as hexadecyltrimethyl-ammonium (CTAB), are widely used as disinfectants and in personal-care products. Their use as disinfectants grew during the SARS-CoV-2 (COVID-19) pandemic, leading to increased loads to wastewater treatment systems and the environment. Though low concentrations of CTAB are biodegradable, high concentrations are toxic to bacteria. Sufficient O2 delivery is a key to achieve high CTAB removal, and the O2-based Membrane Biofilm Reactor (O2-MBfR) is a proven means to biodegrade CTAB in a bubble-free, non-foaming manner. A strategy for achieving complete biodegradation of high-concentrations of CTAB is a two-stage O2-MBfR, in which partial CTAB removal in the Lead reactor relieves inhibition in the Lag reactor. Here, more than 98 % removal of 728 mg/L CTAB could be achieved in the two-stage MBfR, and the CTAB-removal rate was 70 % higher than for a one-stage MBfR with the same O2-delivery capacity. CTAB exposure shifted the bacterial community toward Pseudomonas and Stenotrophomonas as the dominant genera. In particular, P. alcaligenes and P. aeruginosa were enriched in the Lag reactor, as they were capable of biodegrading the metabolites of initial CTAB monooxygenation. Metagenomic analysis also revealed that the Lag reactor was enriched in genes for CTAB and metabolite oxygenation, due to reduced CTAB inhibition.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - YenJung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA.
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, USA; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Yuhang Cai
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Weiyu Wu
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
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2
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Mahmoud N, Mohamed WR, Mohamed T. Femtosecond laser-induced fluorescence for rapid monitoring of cardiac troponin 1 as a cardiovascular disease biomarker. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123491. [PMID: 37837929 DOI: 10.1016/j.saa.2023.123491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/02/2023] [Indexed: 10/16/2023]
Abstract
Medical diagnosis usually requires blood analysis of various biomarkers which are essential for disease detection and health status monitoring. Cardiac troponin 1 (cTn1) is a protein member of the cardiac troponin complex used for the diagnosis of several pathologies associated with cardiomyocyte necrosis. Laser-induced fluorescence (LIF) is a technique with high sensitivity and specificity, and it is one of the most significant developments used as an analytical tool for qualitative and quantitative analysis. The current study investigated the potential application of femtosecond LIF as a novel detection technique for rapid monitoring of cTn1 in clinical analysis. In the present study, the cTn1 (8 ng/ml) was excited over wavelengths ranging from 350 to 400 nm, and the LIF spectra were recorded. The results demonstrated that the maximum fluorescence intensity was observed at an excitation wavelength of 350 nm, with an emitted fluorescence peak centeredat 494 nm. At an excitation wavelength of 350 nm, different concentrations of cTn1 have been investigated and LIF spectra were obtained. The results revealed that the fluorescence peak intensity is concentration-dependent and increases linearly with increasing cTn1 concentration. These findings show that femtosecond LIF presents a unique, highly selective, precise, and direct approach to monitoring cTn1.
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Affiliation(s)
- Nora Mahmoud
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Wafaa R Mohamed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt; Faculty of Pharmacy, Department of Pharmacology and Toxicology, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Tarek Mohamed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt.
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Abraham MK, Madanan AS, Varghese S, Shkhair AI, Indongo G, Rajeevan G, Vijila NS, George S. NaYF 4:Yb/Ho upconversion nanoprobe incorporated gold nanoparticle (AuNP) based FRET immunosensor for the "turn-on" detection of cardiac troponin I. Analyst 2023; 149:231-243. [PMID: 38031450 DOI: 10.1039/d3an01405c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Cardiac troponin I (cTnI) is a significant biomarker for acute heart attack. Hence, fast, economical, easy and real time monitoring of cardiac troponin I (cTnI) is of great importance in diagnosis and prognosis of heart failure in the healthcare domain. In this work, an immunoassay based on NaYF4:Yb/Ho based photon-upconversion nanoparticle (UCNP) with narrow emission peaks at 540 nm and 655 nm respectively, is synthesized. Then, it is encapsulated with amino functionalized silica using 3-aminopropyltriethoxysilane (APTES) to form APTES@SiO2-NaYF4:Yb/Ho UCNPs. When AuNPs is added to this system, the fluorescence is quenched by the electrostatic interaction with APTES@SiO2-NaYF4:Yb/Ho UCNPs, thereby exhibiting a FRET-based biosensor. When the cTnI antigen is introduced into the developed probe, an antibody-antigen complex is formed on the surface of the UCNPs resulting in fluorescence recovery. The developed sensor shows a linear response towards cTnI in the range from 0.1693 ng mL-1 to 1.9 ng mL-1 with a low limit of detection (LOD) of 5.5 × 10-2 ng mL-1. The probe exhibits adequate selectivity and sensitivity when compared with coexisting cardiac biomarkers, biomolecules and in real human serum samples.
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Affiliation(s)
- Merin K Abraham
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Anju S Madanan
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Susan Varghese
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Ali Ibrahim Shkhair
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Geneva Indongo
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Greeshma Rajeevan
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - N S Vijila
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
| | - Sony George
- Department of Chemistry, School of Physical and Mathematical Sciences, Research Centre, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695581, India.
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Han S, Al‐Jamal KT. Combined Facile Synthesis, Purification, and Surface Functionalization Approach Yields Monodispersed Gold Nanorods for Drug Delivery Applications. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2023; 40:2300043. [PMID: 38213764 PMCID: PMC10777591 DOI: 10.1002/ppsc.202300043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/04/2023] [Indexed: 01/13/2024]
Abstract
Synthesizing gold nanorods (AuNRs) by seed-mediated growth method results in the presence of undesired size and shape particles by-products occupying 10-90% of the population. In this study, AuNRs are synthesized by the seed-mediated growth method using cetyltrimethylammonium bromide (CTAB) as a surfactant. AuNRs with redshifted longitudinal localized surface plasmon resonance (LLSPR) peak, localized in the biological "transparency window" (650-1350 nm), are synthesized after optimizing seed solution, silver nitrate solution, and hydrochloric acid solution volumes, based on the published protocols. A two-step purification method, dialysis followed by centrifugation, is applied to remove excess CTAB and collect LLSPR-redshifted AuNRs with high rod purity (>90%). CTAB is subsequently exchanged with polyethylene glycol (PEG) to improve AuNRs biocompatibility. PEGylated AuNRs are confirmed innocuous to both SN4741 cells and B16F10 cells by the modified MTT assay and the modified lactate dehydrogenase (LDH) assay up to 1 nm and 24 h incubation. In this study, a combined facile synthesis, purification, and surface functionalization approach is proposed to obtain water-dispersible monodispersed AuNRs for drug delivery applications.
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Affiliation(s)
- Shunping Han
- Institute of Pharmaceutical ScienceFaculty of Life Sciences & MedicineKing's College LondonFranklin‐Wilkins Building, 150 Stamford StreetLondonSE1 9NHUK
| | - Khuloud T. Al‐Jamal
- Institute of Pharmaceutical ScienceFaculty of Life Sciences & MedicineKing's College LondonFranklin‐Wilkins Building, 150 Stamford StreetLondonSE1 9NHUK
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5
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Han S, Wang JTW, Yavuz E, Zam A, Rouatbi N, Utami RN, Liam-Or R, Griffiths A, Dickson W, Sosabowski J, Al-Jamal KT. Spatiotemporal tracking of gold nanorods after intranasal administration for brain targeting. J Control Release 2023; 357:606-619. [PMID: 37061195 PMCID: PMC10390340 DOI: 10.1016/j.jconrel.2023.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Abstract
Intranasal administration is becoming increasingly more attractive as a fast delivery route to the brain for therapeutics circumventing the blood-brain barrier (BBB). Gold nanorods (AuNRs) demonstrate unique optical and biological properties compared to other gold nanostructures due to their high aspect ratio. In this study, we investigated for the first time the brain region-specific distribution of AuNRs and their potential as a drug delivery platform for central nervous system (CNS) therapy following intranasal administration to mice using a battery of analytical and imaging techniques. AuNRs were functionalized with a fluorescent dye (Cyanine5, Cy5) or a metal chelator (diethylenetriaminepentaacetic dianhydride, DTPA anhydride) to complex with Indium-111 via a PEG spacer for optical and nuclear imaging, respectively. Direct quantification of gold was achieved by inductively coupled plasma mass spectrometry. Rapid AuNRs uptake in mice brains was observed within 10 min following intranasal administration which gradually reduced over time. This was confirmed by the 3 imaging/analytical techniques. Autoradiography of sagittal brain sections suggested entry to the brain via the olfactory bulb followed by diffusion to other brain regions within 1 h of administration. The presence of AuNR in glioblastoma (GBM) tumors following intranasal administration was also proven which opens doors for AuNRs applications, as nose-to-brain drug delivery carriers, for treatment of a range of CNS diseases.
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Affiliation(s)
- Shunping Han
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom; London Centre for Nanotechnology, King's College London, Strand, London WC2R 2LS, United Kingdom
| | - Julie Tzu-Wen Wang
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Emine Yavuz
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom; Advanced Technology Research and Application Center, Selcuk University, Aleaddin Keykubat Yerleskesi, Akademi Mah. Yeni Istanbul Cad. No: 355/C, Selcuklu, Konya, Turkey
| | - Alaa Zam
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Nadia Rouatbi
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Rifka Nurul Utami
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Revadee Liam-Or
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Alexander Griffiths
- London Metallomics Facility, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Wayne Dickson
- Department of Physics, King's College London, Strand, London WC2R 2LS, United Kingdom; London Centre for Nanotechnology, King's College London, Strand, London WC2R 2LS, United Kingdom
| | - Jane Sosabowski
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
| | - Khuloud T Al-Jamal
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom; London Centre for Nanotechnology, King's College London, Strand, London WC2R 2LS, United Kingdom.
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6
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Pellas V, Sallem F, Blanchard J, Miche A, Concheso SM, Méthivier C, Salmain M, Boujday S. Silica-coated gold nanorods biofunctionalization for localized surface plasmon resonance (LSPR) biosensing. Talanta 2023; 255:124245. [PMID: 36610258 DOI: 10.1016/j.talanta.2022.124245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/06/2022] [Accepted: 12/30/2022] [Indexed: 01/01/2023]
Abstract
We introduce here the engineering of nanobiosensors designed from gold nanorods coated with an ultrathin layer of silica (AuNR@SiO2) and biofunctionalized with antibodies for the Localized Surface Plasmon Resonance (LSPR) biosensing of proteins. Despite the outstanding properties of AuNRs, their use for LSPR biosensing is limited due to the presence of the surfactant cetyltrimethylammonium bromide (CTAB) - mandatory for their synthesis - which forms a strongly-bounded and positively-charged bilayer at their surface and significantly complicates their bio-functionalization. When coated with a thin layer of silica, these nanomaterials exhibit an improved sensitivity to refractive index change which augurs for better analytical performances. Here, we undertook an in-depth investigation of the biofunctionalization of AuNR@SiO2via three different routes to design and test a label-free LSPR biosensor operating in solution. In the first route, we took advantage of the negatively charged external silica shell to immobilize anti-rabbit IgG antibody by electrostatic physisorption. In the second and third routes, the silica surface was reacted with thiol or aldehyde terminated silanes, subsequently utilized to covalently attach anti-rabbit IgG antibody to the surface. The resulting nanoprobes were characterized by a wide range of physical methods (TEM, XPS, DLS, ELS and UV-Visible spectroscopy) then tested for the biosensing of rabbit-IgG. The three nanobiosensors maintain an excellent colloidal stability after analyte recognition and exhibit extremely high analytical performances in terms of specificity and dynamic range, with an LoD down to 12 ng/mL.
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Affiliation(s)
- Vincent Pellas
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005, Paris, France
| | - Fadoua Sallem
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Juliette Blanchard
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Antoine Miche
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Sara Martinez Concheso
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Christophe Méthivier
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Michèle Salmain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005, Paris, France.
| | - Souhir Boujday
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France.
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Gu Y, Peng L, Ding W, Wang Y, Zeng X. An ultrasensitive FRET-based fluorescent low molecular weight heparin nanoprobe for quantifying heparanase activity. Talanta 2023; 254:124207. [PMID: 36549136 DOI: 10.1016/j.talanta.2022.124207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Heparanase (HPA) is a multifaceted endo-β-glucuronidase, and its dysregulation facilitates cancer metastasis. Developing techniques for fast and sensitively monitoring HPA enzymatic activity is crucial for searching for molecular therapies targeting HPA. Herein, we developed a novel fluorescence resonance energy transfer (FRET)-based nanoprobe AuNCs-LMWH-AuNRs, with AuNCs@GSH-cys and AuNRs/end-NH2/side-SiO2 attached to the non-reducing terminus and reducing terminus of low molecular weight heparin (LMWH), respectively. AuNCs@GSH-cys exhibited an absolute quantum yield of 1.1%. The absorption spectra of AuNRs/end-NH2/side-SiO2 (825 nm for maximum longitudinal absorption) and the emission spectra of AuNCs@GSH-cys (824 nm for maximum emission) were precisely overlapping, further enhancing the efficiency of FRET. In the presence of HPA, the LMWH nanoprobe exhibited an ultrasensitive response with excitation/emission wavelength (lambda (ex) = 560 nm, lambda (em) = 824 nm). The probe presented a wide linear dynamic detection range (LDR) of 0.125 ng/μL - 0.01 μg/μL in vitro with a limit of detection (LODs) of 82.15 pM (0.43 pg/μL). The excellent selectivity and good fluorescence turn-on efficiency of the probe made it possible for one-step detection of cellular heparanase activity. High throughput screening of HPA inhibitors also can be accomplished using the highly efficient LMWH nanoprobe.
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Affiliation(s)
- Yayun Gu
- Medical School, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Lizhong Peng
- Medical School, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province, 226001, China
| | - Weihua Ding
- Medical School, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province, 226001, China
| | - Yang Wang
- Kobilka Institute of Innovative Drug Discovery, The Chinese University of Hong Kong, 2001 Longxiang Avenue, Shenzhen, Guangdong Province, 518172, China
| | - Xuhui Zeng
- Medical School, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
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8
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Guo Y, Liu Q, Wei A, Jiang S, Chen F, Huang J, He Y, Huang G, Wu Z. Spectrum and size controllable synthesis of high-quality gold nanorods using 1,7-dihydroxynaphthalene as a reducing agent. Dalton Trans 2023; 52:1052-1061. [PMID: 36602082 DOI: 10.1039/d2dt03646k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The spectrum and size controllable synthesis of gold nanorods is of great value for their widely applicable aspect ratio dependence of anisotropic surface plasmon resonance. Herein, 1,7-dihydroxynaphthalene with a relatively strong reducibility is proposed as a reducing agent for the controllable synthesis of gold nanorods. The result indicated that gold nanorods with high monodispersity, high shape yield, relatively small diameters, and maximum plasmon resonance wavelength of above 1000 nm can be acquired. More importantly, by virtue of the reducing agent used, fine and precise controls over the plasmon wavelength and diameter of the rod can be achieved via changes in experimental conditions. In particular, increases in the concentration of both silver ions and cetyltrimethylammonium bromide (CTAB) can increase the plasmon wavelength from around 600 nm to 1000 nm but respectively show a decreased diameter with the smallest value of around 14.3 nm and a mildly increased diameter from around 9.0 nm to 14.3 nm; moreover, increasing the concentration of reducing agents and gold seeds can simultaneously cause decreases in the plasmon wavelength from around 1000 nm to 800 nm and the diameters from around 14.3 nm to 9.0 and 7.3 nm, respectively. This powerful and efficient method of controllable synthesis of AuNRs could be valuable and attractive for the application of the as-obtained particles.
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Affiliation(s)
- Yuyang Guo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Qiuyue Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Anhua Wei
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Suju Jiang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Feifei Chen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Jun Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Yimiao He
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
| | - Guobao Huang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Zihua Wu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China.
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9
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Gong Y, Liu H, Ke S, Zhuo L, Wang H. Latest advances in biomimetic nanomaterials for diagnosis and treatment of cardiovascular disease. Front Cardiovasc Med 2023; 9:1037741. [PMID: 36684578 PMCID: PMC9846151 DOI: 10.3389/fcvm.2022.1037741] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/09/2022] [Indexed: 01/05/2023] Open
Abstract
Cardiovascular disease remains one of the leading causes of death in China, with increasingly serious negative effects on people and society. Despite significant advances in preventing and treating cardiovascular diseases, such as atrial fibrillation/flutter and heart failure over the last few years, much more remains to be done. Therefore, developing innovative methods for identifying and managing cardiovascular disorders is critical. Nanomaterials provide multiple benefits in biomedicine, primarily better catalytic activity, drug loading, targeting, and imaging. Biomimetic materials and nanoparticles are specially combined to synthesize biomimetic nanoparticles that successfully reduce the nanoparticles' toxicity and immunogenicity while enhancing histocompatibility. Additionally, the biological targeting capability of nanoparticles facilitates the diagnosis and therapy of cardiovascular disease. Nowadays, nanomedicine still faces numerous challenges, which necessitates creating nanoparticles that are highly selective, toxic-free, and better clinically applicable. This study reviews the scientific accomplishments in this field over the past few years covering the classification, applications, and prospects of noble metal biomimetic nanozymes and biomimetic nanocarriers.
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Affiliation(s)
- Yuxuan Gong
- College of Life Sciences and Bioengineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, China
| | - Huaying Liu
- College of Life Sciences and Bioengineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, China
| | - Shen Ke
- College of Life Sciences and Bioengineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, China
| | - Li Zhuo
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, China,Li Zhuo,
| | - Haibin Wang
- College of Life Sciences and Bioengineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, China,*Correspondence: Haibin Wang,
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10
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Sun Y, Zhang P, Li Y, Hou Y, Yin C, Wang Z, Liao Z, Fu X, Li M, Fan C, Sun D, Cheng L. Light-Activated Gold-Selenium Core-Shell Nanocomposites with NIR-II Photoacoustic Imaging Performances for Heart-Targeted Repair. ACS NANO 2022; 16:18667-18681. [PMID: 36264835 DOI: 10.1021/acsnano.2c07311] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Mitochondrial dysfunction and oxidative damage represent important pathological mechanisms of myocardial ischemia-reperfusion injury (MI/RI). Searching for potential antioxidant agents to attenuate MI/RI is of great significance in clinic. Herein, gold-selenium core-shell nanostructures (AS-I/S NCs) with good near-infrared (NIR)-II photoacoustic imaging were designed for MI/RI treatment. The AS-I/S NCs after ischemic myocardium-targeted peptide (IMTP) and mitochondrial-targeted antioxidant peptide SS31 modification achieved cardiomyocytes-targeted cellular uptake and enhanced antioxidant ability and significantly inhibited oxygen-glucose deprivation-recovery (OGD/R)-induced cardiotoxicity of H9c2 cells by inhibiting the depletion of mitochondrial membrane potential (MMP) and restoring ATP synthase activity. Furthermore, the AS-I/S NCs after SS31 modification achieved mitochondria-targeted inhibition of reactive oxygen species (ROS) and subsequently attenuated oxidative damage in OGD/R-treated H9c2 cells by inhibition of apoptosis and oxidative damage, regulation of MAPKs and PI3K/AKT pathways. The in vivo AS-I/S NCs administration dramatically improved myocardial functions and angiogenesis and inhibited myocardial fibrosis through inhibiting myocardial apoptosis and oxidative damage in MI/RI of rats. Importantly, the AS-I/S NCs showed good safety and biocompatibility in vivo. Therefore, our findings validated the rational design that mitochondria-targeted selenium-gold nanocomposites could attenuate MI/RI of rats by inhibiting ROS-mediated oxidative damage and regulating MAPKs and PI3K/AKT pathways, which could be a potential therapy for the MI/RI treatment.
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Affiliation(s)
- Yu Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Pu Zhang
- Department of Cardiology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong 271000, China
| | - Yuqing Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yajun Hou
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Chenyang Yin
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zekun Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Ziyu Liao
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xiaoyan Fu
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Man Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Cundong Fan
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Dongdong Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
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11
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Kakkar S, Chauhan S, Bala R, Bharti, Kumar V, Rohit M, Bhalla V. Site-directed dual bioprobes inducing single-step nano-sandwich assay for the detection of cardiac troponin I. Mikrochim Acta 2022; 189:366. [PMID: 36053384 DOI: 10.1007/s00604-022-05461-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/13/2022] [Indexed: 11/28/2022]
Abstract
Bioreceptor functionalized metallic nano-colloids have been identified as effective nanobioprobes to realize the detection of an analyte based on a common phenomenon of salt-induced aggregation. In marked contrast to this, we describe a nano-sandwich assay integrating the novel match-pair of aptamer and peptide functionalized gold nanoparticles. The site-directed biomolecular interaction of high affinity aptamer and peptide bioreceptors directed towards distinct sites of cardiac biomarker troponin I; this was found to form a nano-sandwich assay in a peculiar manner. The gold nanoconjugates interact with specific and distant regions of troponin I to result in collision of probes upon target identification. In the presence of TnI, both nanobioprobes bind at their respective sites forming a nano-sandwich pair providing a visual color change from red to blue. Thus, the presence of target TnI itself causes instant agglomeration in just a single-step without addition of any external aggregator. The assay imparts 100% specificity and 90% sensitivity in a dynamic concentration range of 0.1-500 ng/mL troponin I with detection limit as low as 0.084 ng/mL. The applicability of the assay has been validated in clinical samples of acute myocardial infarction patients thus establishing a promising point-of-care detection of TnI.
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Affiliation(s)
- Saloni Kakkar
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036
| | - Sakshi Chauhan
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036
| | - Rajni Bala
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036
| | - Bharti
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036
| | - Virendra Kumar
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036
| | | | - Vijayender Bhalla
- Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India, 160036.
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12
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Li M, Wei J, Song Y, Chen F. Gold nanocrystals: optical properties, fine-tuning of the shape, and biomedical applications. RSC Adv 2022; 12:23057-23073. [PMID: 36090439 PMCID: PMC9380198 DOI: 10.1039/d2ra04242h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 07/29/2022] [Indexed: 02/06/2023] Open
Abstract
Noble metal nanomaterials with special physical and chemical properties have attracted considerable attention in the past decades. In particular, Au nanocrystals (NCs), which possess high chemical inertness and unique surface plasmon resonance (SPR), have attracted extensive research interest. In this study, we review the properties and preparation of Au NCs with different morphologies as well as their important applications in biological detection. The preparation of Au NCs with different shapes by many methods such as seed-mediated growth method, seedless synthesis, polyol process, ultrasonic method, and hydrothermal treatment has already been introduced. In the seed-mediated growth method, the influence factors in determining the final shape of Au NCs are discussed. Au NCs, which show significant size-dependent color differences are proposed for preparing biological probes to detect biomacromolecules such as DNA and protein, while probe conjugate molecules serves as unique coupling agents with a target. Particularly, Au nanorods (NRs) have some unique advantages in the application of biological probes and photothermal cancer therapy compared to Au nanoparticles (NPs).
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Affiliation(s)
- Meng Li
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Jianlu Wei
- Department of Orthopaedic Surgery, Qilu Hospital Shandong University 107 Wenhua Xi Road Jinan 250012 P. R. China
| | - Yang Song
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Feiyong Chen
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
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13
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Campu A, Muresan I, Craciun AM, Cainap S, Astilean S, Focsan M. Cardiac Troponin Biosensor Designs: Current Developments and Remaining Challenges. Int J Mol Sci 2022; 23:ijms23147728. [PMID: 35887073 PMCID: PMC9318943 DOI: 10.3390/ijms23147728] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 01/27/2023] Open
Abstract
Acute myocardial infarction (AMI) is considered as one of the main causes of death, threating human lives for decades. Currently, its diagnosis relies on electrocardiography (ECG), which has been proven to be insufficient. In this context, the efficient detection of cardiac biomarkers was proposed to overcome the limitations of ECG. In particular, the measurement of troponins, specifically cardiac troponin I (cTnI) and cardiac troponin T (cTnT), has proven to be superior in terms of sensitivity and specificity in the diagnosis of myocardial damage. As one of the most life-threatening conditions, specific and sensitive investigation methods that are fast, universally available, and cost-efficient to allow for early initiation of evidence-based, living-saving treatment are desired. In this review, we aim to present and discuss the major breakthroughs made in the development of cTnI and cTnT specific biosensor designs and analytical tools, highlighting the achieved progress as well as the remaining challenges to reach the technological goal of simple, specific, cheap, and portable testing chips for the rapid and efficient on-site detection of cardiac cTnI/cTnT biomarkers in order to diagnose and treat cardiovascular diseases at an incipient stage.
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Affiliation(s)
- Andreea Campu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Ilinca Muresan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Simona Cainap
- Department of Pediatric Cardiology, Pediatric Clinic 2, Emergency County Hospital for Children, Crisan No. 3-5, 400124 Cluj-Napoca, Romania;
- Department of Mother & Child, Iuliu Hatieganu University of Medicine and Pharmacology, Louis Pasteur No. 4, 400349 Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Mihail Kogalniceanu No. 1, 400084 Cluj-Napoca, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
- Correspondence: ; Tel.: +40-264-454-554 (ext. 116)
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14
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Xu H, Li S, Liu YS. Nanoparticles in the diagnosis and treatment of vascular aging and related diseases. Signal Transduct Target Ther 2022; 7:231. [PMID: 35817770 PMCID: PMC9272665 DOI: 10.1038/s41392-022-01082-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 11/09/2022] Open
Abstract
Aging-induced alternations of vasculature structures, phenotypes, and functions are key in the occurrence and development of vascular aging-related diseases. Multiple molecular and cellular events, such as oxidative stress, mitochondrial dysfunction, vascular inflammation, cellular senescence, and epigenetic alterations are highly associated with vascular aging physiopathology. Advances in nanoparticles and nanotechnology, which can realize sensitive diagnostic modalities, efficient medical treatment, and better prognosis as well as less adverse effects on non-target tissues, provide an amazing window in the field of vascular aging and related diseases. Throughout this review, we presented current knowledge on classification of nanoparticles and the relationship between vascular aging and related diseases. Importantly, we comprehensively summarized the potential of nanoparticles-based diagnostic and therapeutic techniques in vascular aging and related diseases, including cardiovascular diseases, cerebrovascular diseases, as well as chronic kidney diseases, and discussed the advantages and limitations of their clinical applications.
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Affiliation(s)
- Hui Xu
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China
| | - Shuang Li
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China
| | - You-Shuo Liu
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China. .,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China.
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15
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Wu B, Shao Y, Zhao W, Zheng Y, Wang Y, Sun D. Dual functions of epigallocatechin gallate surface-modified Au nanorods@selenium composites for near-infrared-II light-responsive synergistic antibacterial therapy. J Biomater Appl 2022; 36:1812-1825. [PMID: 35232312 DOI: 10.1177/08853282211048570] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Diseases caused by bacterial infections pose ever-increasing threats to human health, making it important to explore alternative antibacterial strategies. Herein, epigallocatechin gallate (EGCG) surface-modified Au nanorods@selenium composites (ASE NPs) were developed for synergistic NIR-II light-responsive antibacterial therapy. In vitro antibacterial experiments demonstrated the improved antibacterial effect of ASE NPs against Staphylococcus aureus (S. aureus) compared with EGCG alone. In addition, in vivo studies demonstrated that ASE NPs cured skin wound infections and sepsis in mice caused by S. aureus. Au nanorods with excellent photothermal conversion realized synergistic photothermal therapy (PTT) in the NIR-II biowindow with an improved penetration depth at a low power density. More importantly, toxicity analysis showed that the composites had no toxic effects on major organs. Thus, the EGCG surface-modified Au nanorods@selenium composites with an NIR-II light-responsive synergistic activity hold great promise for the effective treatment of drug-resistant bacterial infections.
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Affiliation(s)
- Bingbing Wu
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
| | - Yuyan Shao
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
| | - Wei Zhao
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
| | - Yunfang Zheng
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
| | - Yunsheng Wang
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
| | - Dongdong Sun
- School of life sciences, 12486Anhui Agricultural University, Hefei, Anhui, P.R. China
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16
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Zhang M, Zhang X, Zhao K, Dong Y, Yang W, Liu J, Li D. Assembly of gold nanorods with L-cysteine reduced graphene oxide for highly efficient NIR-triggered photothermal therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120458. [PMID: 34619508 DOI: 10.1016/j.saa.2021.120458] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 05/26/2023]
Abstract
Near-infrared (NIR) photothermal therapy is an effective partner to the chemotherapy of tumors with the merits of high therapeutic ability and slight side effect on normal tissues. Herein, we synthesized gold nanorods and assembled them with L-cysteine reduced graphene oxide (AuNR@Lcyst-rGO) for efficient photothermal therapy. The high therapeutic efficacy of AuNR@Lcyst-rGO can be due to the high photothermal effect of gold nanorods and reduced graphene oxide, and the synergistic effect of them. The nontoxicity of L-cysteine also guarantees the comfortable biocompatibility of reduced graphene oxide, which is essential for the photothermal absorber used in human tissue. The results demonstrate that assembly of gold nanorods with reduced graphene oxide (AuNR@Lcyst-rGO) is a promising photothermal agent with high efficient NIR-triggered photothermal therapy efficiency, excellent stability, superior biocompatibility.
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Affiliation(s)
- Meng Zhang
- the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Xiangyu Zhang
- School of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Kai Zhao
- School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yunxia Dong
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC 3216, Australia
| | - Jingquan Liu
- School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Da Li
- School of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.
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17
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Zhang Z, Zhang Y, Yu H, Rong S, Gao H, Meng L, Dai J, Pan H, Chang D. Spherical carrier amplification strategy for electrochemical immunosensor based on polystyrene-gold nanorods @L-cysteine/MoS2 for determination of tacrolimus. Talanta 2020; 220:121321. [DOI: 10.1016/j.talanta.2020.121321] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/11/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022]
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18
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Khan S, Hasan A, Attar F, Sharifi M, Siddique R, Mraiche F, Falahati M. Gold Nanoparticle-Based Platforms for Diagnosis and Treatment of Myocardial Infarction. ACS Biomater Sci Eng 2020; 6:6460-6477. [PMID: 33320615 DOI: 10.1021/acsbiomaterials.0c00955] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, an increasing rate of mortality due to myocardial infarction (MI) has led to the development of nanobased platforms, especially gold nanoparticles (AuNPs), as promising nanomaterials for diagnosis and treatment of MI. These promising NPs have been used to develop different nanobiosensors, mainly optical sensors for early detection of biomarkers as well as biomimetic/bioinspired platforms for cardiac tissue engineering (CTE). Therefore, in this Review, we presented an overview on the potential application of AuNPs as optical (surface plasmon resonance, colorimetric, fluorescence, and chemiluminescence) nanobiosensors for early diagnosis and prognosis of MI. On the other hand, we discussed the potential application of AuNPs either alone or with other NPs/polymers as promising three-dimensional (3D) scaffolds to regulate the microenvironment and mimic the morphological and electrical features of cardiac cells for potential application in CTE. Furthermore, we presented the challenges and ongoing efforts associated with the application of AuNPs in the diagnosis and treatment of MI. In conclusion, this Review may provide outstanding information regarding the development of AuNP-based technology as a promising platform for current MI treatment approaches.
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Affiliation(s)
- Suliman Khan
- Department of Cerebrovascular Diseases, the Second Affiliated Hospital of Zhengzhou University, Jingba Road, NO.2, 450014 Zhengzhou, China
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Centre (BRC), Qatar University, Doha 2713, Qatar
| | - Farnoosh Attar
- Department of Food Toxicology, Research Center of Food Technology and Agricultural Products, Standard Research Institute (SRI), Karaj 14155-6139, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rabeea Siddique
- Department of Cerebrovascular Diseases, the Second Affiliated Hospital of Zhengzhou University, Jingba Road, NO.2, 450014 Zhengzhou, China
| | | | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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19
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Pellas V, Hu D, Mazouzi Y, Mimoun Y, Blanchard J, Guibert C, Salmain M, Boujday S. Gold Nanorods for LSPR Biosensing: Synthesis, Coating by Silica, and Bioanalytical Applications. BIOSENSORS 2020; 10:E146. [PMID: 33080925 PMCID: PMC7603250 DOI: 10.3390/bios10100146] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022]
Abstract
Nanoparticles made of coinage metals are well known to display unique optical properties stemming from the localized surface plasmon resonance (LSPR) phenomenon, allowing their use as transducers in various biosensing configurations. While most of the reports initially dealt with spherical gold nanoparticles owing to their ease of synthesis, the interest in gold nanorods (AuNR) as plasmonic biosensors is rising steadily. These anisotropic nanoparticles exhibit, on top of the LSPR band in the blue range common with spherical nanoparticles, a longitudinal LSPR band, in all respects superior, and in particular in terms of sensitivity to the surrounding media and LSPR-biosensing. However, AuNRs synthesis and their further functionalization are less straightforward and require thorough processing. In this paper, we intend to give an up-to-date overview of gold nanorods in LSPR biosensing, starting from a critical review of the recent findings on AuNR synthesis and the main challenges related to it. We further highlight the various strategies set up to coat AuNR with a silica shell of controlled thickness and porosity compatible with LSPR-biosensing. Then, we provide a survey of the methods employed to attach various bioreceptors to AuNR. Finally, the most representative examples of AuNR-based LSPR biosensors are reviewed with a focus put on their analytical performances.
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Affiliation(s)
- Vincent Pellas
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
- Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - David Hu
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Yacine Mazouzi
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Yoan Mimoun
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Juliette Blanchard
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Clément Guibert
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Michèle Salmain
- Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Souhir Boujday
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
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20
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Wu M, Zhang X, Wu R, Wang G, Li J, Chai Y, Shen H, Li LS. Sensitive and Quantitative Determination of Cardiac Troponin I Based on Silica-Encapsulated CdSe/ZnS Quantum Dots and a Fluorescence Lateral Flow Immunoassay. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1719125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Min Wu
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Ruili Wu
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Jinjie Li
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Huaibin Shen
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | - Lin Song Li
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
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21
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Qiao Z, Yao Y, Song S, Yin M, Yang M, Yan D, Yang L, Luo J. Gold nanorods with surface charge-switchable activities for enhanced photothermal killing of bacteria and eradication of biofilm. J Mater Chem B 2020; 8:3138-3149. [DOI: 10.1039/d0tb00298d] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The gold nanorods (PCB-AuNRs) with pH induced surface charge transform activities were used for photothermal disinfection of planktonic bacteria and eradication of bacterial biofilms.
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Affiliation(s)
- Zhuangzhuang Qiao
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Yan Yao
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Shaomin Song
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Meihui Yin
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Min Yang
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Daoping Yan
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Lijiao Yang
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Jianbin Luo
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
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22
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Wu Z, Liang Y, Cao L, Guo Q, Jiang S, Mao F, Sheng J, Xiao Q. High-yield synthesis of monodisperse gold nanorods with a tunable plasmon wavelength using 3-aminophenol as the reducing agent. NANOSCALE 2019; 11:22890-22898. [PMID: 31763638 DOI: 10.1039/c9nr07949a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Facile synthesis of high quality gold nanorods (AuNRs) with a tunable size is of great value for applications of AuNRs in various fields and for the study of the growth mechanism of such anisotropic nanostructures. However, limitations usually exist in a specific synthetic protocol. In this work, using 3-aminophenol as the reducing agent, we present a AuNR synthetic strategy with an excellent comprehensive performance, which includes an exceptional monodispersity, a AuNR shape purity of around 99%, a conversion ratio of the gold precursor of about 91%, and an easily tuned longitudinal surface plasmon resonance wavelength ranging from 580 to ∼1050 nm. Studies on the impacts of the experimental parameters including silver ions, gold seeds, reducing agent, and cetyltrimethylammonium bromide (CTAB) revealed a profound recognition of the significant effect of the reductive atmosphere, in synergy with other parameters, in directing the growth and structural evolution of the gold seeds, thus deeply affecting the size, shape yield, monodispersity, and morphology of the final structure. These results could be immensely useful for the application and revelation of the growth mechanism of AuNRs.
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Affiliation(s)
- Zihua Wu
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Yuling Liang
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Linqi Cao
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Qing Guo
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Suju Jiang
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Fangfang Mao
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Jiarong Sheng
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China.
| | - Qi Xiao
- College of Chemistry and Materials, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, P. R. China. and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
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Negahdary M, Heli H. An electrochemical troponin I peptisensor using a triangular icicle-like gold nanostructure. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107326] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Xu W, Wang J, Qian J, Hou G, Wang Y, Ji L, Suo A. NIR/pH dual-responsive polysaccharide-encapsulated gold nanorods for enhanced chemo-photothermal therapy of breast cancer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109854. [DOI: 10.1016/j.msec.2019.109854] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/16/2019] [Accepted: 06/01/2019] [Indexed: 12/25/2022]
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Lee T, Kim J, Nam I, Lee Y, Kim HE, Sohn H, Kim SE, Yoon J, Seo SW, Lee MH, Park C. Fabrication of Troponin I Biosensor Composed of Multi-Functional DNA Structure/Au Nanocrystal Using Electrochemical and Localized Surface Plasmon Resonance Dual-Detection Method. NANOMATERIALS 2019; 9:nano9071000. [PMID: 31373309 PMCID: PMC6669750 DOI: 10.3390/nano9071000] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 06/30/2019] [Accepted: 07/05/2019] [Indexed: 02/06/2023]
Abstract
In the present study, we fabricated a dual-mode cardiac troponin I (cTnI) biosensor comprised of multi-functional DNA (MF-DNA) on Au nanocrystal (AuNC) using an electrochemical method (EC) and a localized surface plasmon resonance (LSPR) method. To construct a cTnI bioprobe, a DNA 3 way-junction (3WJ) was prepared to introduce multi-functionality. Each DNA 3WJ arm was modified to possess a recognition region (Troponin I detection aptamer), an EC-LSPR signal generation region (methylene blue: MB), and an anchoring region (Thiol group), respectively. After an annealing step, the multi-functional DNA 3WJ was assembled, and its configuration was confirmed by Native-TBM PAGE for subsequent use in biosensor construction. cTnI was also expressed and purified for use in biosensor experiments. To construct an EC-LSPR dual-mode biosensor, AuNCs were prepared on an indium-tin-oxide (ITO) substrate using an electrodeposition method. The prepared multi-functional (MF)-DNA was then immobilized onto AuNCs by covalent bonding. Field emission scanning electron microscope (FE-SEM) and atomic force microscopy (AFM) were used to analyze the surface morphology. LSPR and electrochemical impedance spectroscopy (EIS) experiments were performed to confirm the binding between the target and the bioprobe. The results indicated that cTnI could be effectively detected in the buffer solution and in diluted-human serum. Based on the results of these experiments, the loss on drying (LOD) was determined to be 1.0 pM in HEPES solution and 1.0 pM in 10% diluted human serum. Additionally, the selectivity assay was successfully tested using a number of different proteins. Taken together, the results of our study indicate that the proposed dual-mode biosensor is applicable for use in field-ready cTnI diagnosis systems for emergency situations.
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Affiliation(s)
- Taek Lee
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Jinmyeong Kim
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea
| | - Inho Nam
- Department of Chemical Engineering and Materials Science, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06974, Korea
| | - Yeonju Lee
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea
| | - Ha Eun Kim
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea
| | - Hiesang Sohn
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea
| | - Seong-Eun Kim
- Human IT Convergence Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do 13509, Korea
| | - Jinho Yoon
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
| | - Sang Woo Seo
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Korea
| | - Min-Ho Lee
- School of Integrative Engineering Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06974, Korea.
| | - Chulhwan Park
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
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Fe3O4@PDA immune probe-based signal amplification in surface plasmon resonance (SPR) biosensing of human cardiac troponin I. Colloids Surf B Biointerfaces 2019; 177:105-111. [DOI: 10.1016/j.colsurfb.2019.01.053] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/19/2018] [Accepted: 01/26/2019] [Indexed: 11/21/2022]
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Lee T, Ahn JH, Choi J, Lee Y, Kim JM, Park C, Jang H, Kim TH, Lee MH. Development of the Troponin Detection System Based on the Nanostructure. MICROMACHINES 2019; 10:mi10030203. [PMID: 30909423 PMCID: PMC6470505 DOI: 10.3390/mi10030203] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/17/2019] [Accepted: 03/17/2019] [Indexed: 12/23/2022]
Abstract
During the last 30 years, the World Health Organization (WHO) reported a gradual increase in the number of patients with cardiovascular disease (CVD), not only in developed but also in developing countries. In particular, acute myocardial infarction (AMI) is one of the severe CVDs because of the high death rate, damage to the body, and various complications. During these harmful effects, rapid diagnosis of AMI is key for saving patients with CVD in an emergency. The prompt diagnosis and proper treatment of patients with AMI are important to increase the survival rate of these patients. To treat patients with AMI quickly, detection of a CVD biomarker at an ultra-low concentration is essential. Cardiac troponins (cTNs), cardiac myoglobin (cMB), and creatine kinase MB are typical biomarkers for AMI detection. An increase in the levels of those biomarkers in blood implies damage to cardiomyocytes and thus is related to AMI progression. In particular, cTNs are regarded as a gold standard biomarker for AMI diagnosis. The conventional TN detection system for detection of AMI requires long measurement time and is labor-intensive and tedious. Therefore, the demand for sensitive and selective TN detection techniques is increasing at present. To meet this demand, several approaches and methods have been applied to develop a TN detection system based on a nanostructure. In the present review, the authors reviewed recent advances in TN biosensors with a focus on four detection systems: (1) An electrochemical (EC) TN nanobiosensor, (2) field effect transistor (FET)-based TN nanobiosensor, (3) surface plasmon resonance (SPR)-based TN nanobiosensor and (4) surface enhanced Raman spectroscopy (SERS)-based TN nanobiosensor.
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Affiliation(s)
- Taek Lee
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Jae-Hyuk Ahn
- Department of Electronic Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Jinha Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro (Sinsu-dong), Mapo-gu, Seoul 04107, Korea.
| | - Yeonju Lee
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Jin-Myung Kim
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Chulhwan Park
- Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul 01899, Korea.
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06974, Korea.
| | - Min-Ho Lee
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06974, Korea.
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Neves MAD, Slavkovic S, Reinstein O, Shoara AA, Johnson PE. A proof of concept application of aptachain: ligand-induced self-assembly of a DNA aptamer. RSC Adv 2019; 9:1690-1695. [PMID: 35518030 PMCID: PMC9059725 DOI: 10.1039/c8ra07462c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/25/2018] [Indexed: 12/20/2022] Open
Abstract
A challenge for the use of aptamers as biosensors is how to signal the occurrence of their ligand binding event into a signal that can be exploited in a detection scheme. Here, we present the concept of “aptachain” formation, where an aptamer is split into two overlapping or staggered strands and assembles into an extended oligomer upon ligand binding. This assembly of aptamers can then be used as a way to detect ligand binding by the aptamer. As an example of this concept, we employed the cocaine-binding aptamer as a model system, used its ability to tightly bind quinine and demonstrated its capability in a gold nanoparticle-based biosensing application. We used isothermal titration calorimetry to demonstrate that, when split into two overlapping DNA strands, the aptamer remains functional. Size-exclusion chromatography showed that the quinine-bound oligos form a larger assembly of aptamer units than in the absence of ligand. Finally, we used the oligomer forming ability of the aptachain oligos in a biosensor application for quinine that brings gold nanoparticles closer together resulting in a shift in their plasmonic resonance to a longer wavelength and an observed colour shift. We propose that splitting aptamers into overlapping strands that form oligomers in the presence of a ligand, aptachain formation, will be generally applicable to aptamers and prove useful in a variety of biotechnology applications. We present the concept of aptachain. An aptamer is split into two overlapping strands that form an oligomer when it binds its target. Aptachain formation can be used to detect ligand binding and may be beneficial in other biotechnology applications.![]()
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Affiliation(s)
- Miguel A. D. Neves
- Department of Chemistry & Centre for Research on Biomolecular Interactions
- York University
- Toronto
- Canada
| | - Sladjana Slavkovic
- Department of Chemistry & Centre for Research on Biomolecular Interactions
- York University
- Toronto
- Canada
| | - Oren Reinstein
- Department of Chemistry & Centre for Research on Biomolecular Interactions
- York University
- Toronto
- Canada
| | - Aron A. Shoara
- Department of Chemistry & Centre for Research on Biomolecular Interactions
- York University
- Toronto
- Canada
| | - Philip E. Johnson
- Department of Chemistry & Centre for Research on Biomolecular Interactions
- York University
- Toronto
- Canada
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A dual-targeted hyaluronic acid-gold nanorod platform with triple-stimuli responsiveness for photodynamic/photothermal therapy of breast cancer. Acta Biomater 2019; 83:400-413. [PMID: 30465921 DOI: 10.1016/j.actbio.2018.11.026] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/09/2018] [Accepted: 11/18/2018] [Indexed: 12/24/2022]
Abstract
Multi-stimuli-responsive theranostic nanoplatform integrating functions of both imaging and multimodal therapeutics holds great promise for improving diagnosis and therapeutic efficacy. In this study, we reported a pH, glutathione (GSH) and hyaluronidase (HAase) triple-responsive nanoplatform for HER2 and CD44 dual-targeted and fluorescence imaging-guided PDT/PTT dual-therapy against HER2-overexpressed breast cancer. The nanoplatform was fabricated by functionalizing gold nanorods (GNRs) with hyaluronic acid (HA) bearing pendant hydrazide and thiol groups via Au-S bonds, and subsequently chemically conjugating 5-aminolevulinic acid (ALA), Cy7.5 and anti-HER2 antibody onto HA moiety for PDT, fluorescence imaging and active targeting, respectively. The resulting versatile nanoplatform GNR-HA-ALA/Cy7.5-HER2 had uniform sizes, favorable dispersibility, as well as pH, GSH and HAase triple-responsive drug release manner. In vitro studies demonstrated that HER2 and CD44 receptor-mediated dual-targeting strategy could significantly enhance the cellular uptake of GNR-HA-ALA/Cy7.5-HER2. Under near-infrared (NIR) irradiation, MCF-7 cells could efficiently generate reactive oxygen species (ROS) and heat, and be more efficiently killed by a combination of PDT and PTT as compared with individual therapy. Pharmacokinetic and biodistribution studies showed that the nanoplatform possessed a circulation half-life of 1.9 h and could be specifically delivered to tumor tissues with an accumulation ratio of 12.8%. Upon the fluorescence imaging-guided PDT/PTT treatments, the tumors were completely eliminated without obvious side effects. The results suggest that the GNR-HA-ALA/Cy7.5-HER2 holds great potential for breast cancer therapy. STATEMENT OF SIGNIFICANCE: A combination of photodynamic therapy (PDT) and photothermal therapy (PTT) is emerging as a promising cancer treatment strategy. However, its therapeutic efficacy is compromised by the nonspecific delivery and unintended release of photo-responsive agents. Herein, we developed a multifunctional theranostic nanoplatform GNR-HA-ALA/Cy7.5-HER2 with pH, glutathione and hyaluronidase triple-responsive drug release for HER2 and CD44 dual-targeted and fluorescence imaging-guided PDT/PTT therapy against breast cancer. We demonstrated that HER2 and CD44 receptors-mediated dual-targeting strategy significantly enhanced the cellular uptake of GNR-HA-ALA/Cy7.5-HER2. We also demonstrated that the combined PDT/PTT treatment had significantly superior antitumor effect than PDT or PTT alone both in vitro and in vivo. Therefore, GNR-HA-ALA/Cy7.5-HER2 could serve as a promising nanoplatform for HER2-positive breast cancer therapy.
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PEGylated hydrazided gold nanorods for pH-triggered chemo/photodynamic/photothermal triple therapy of breast cancer. Acta Biomater 2018; 82:171-183. [PMID: 30336271 DOI: 10.1016/j.actbio.2018.10.019] [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] [Received: 07/24/2018] [Revised: 10/09/2018] [Accepted: 10/12/2018] [Indexed: 12/27/2022]
Abstract
Integration of multimodal therapies into one nanoplatform holds great promise to overcome the drawbacks of conventional single-modal therapy and pursues enhanced anticancer efficacy. Herein, we developed a PEGylated gold nanorods (GNRs)-based nanoplatform (GNRs-MPH-ALA/DOX-PEG) with pH-responsive drug release property for triple-combined chemotherapy (CT), photodynamic therapy (PDT) and photothermal therapy (PTT) of breast cancer. GNRs were first decorated with mercaptopropionylhydrazide (MPH) and thiol-terminated monomethoxyl poly(ethylene glycol) (mPEG-SH) via Au-thiol linkage, and subsequently conjugated with chemotherapeutant doxorubicin (DOX) and pro-photosensitizer 5-aminolevulinic acid (ALA) through acid-liable hydrazone bonds between drugs and MPH molecules. The resulting nanoplatform GNRs-MPH-ALA/DOX-PEG exhibited excellent stability in physiological solutions and pH-responsive DOX and ALA release behaviors. In vitro studies showed that GNRs-MPH-ALA/DOX-PEG could efficiently enter human breast cancer MCF-7 cells and release DOX and ALA into cytoplasm. Furthermore, DOX could locate in the cell nucleus and ALA was productively metabolized into protoporphyrin IX (PpIX). Upon near-infrared (NIR) irradiation, PpIX produced enough reactive oxygen species for PDT and meanwhile GNRs could efficiently induce hyperthermia for PTT. Compared with single CT and dual-modal CT/PDT or CT/PTT treatment, the triple-combined CT/PDT/PTT treatment could more efficiently kill MCF-7 cells via a superadditive antitumor effect. Furthermore, the circulation half-life of GNRs-MPH-ALA/DOX-PEG in the blood was as long as approximately 52 min and it exhibited a tumor accumulation of 3.3%. The triple-combined CT/PDT/PTT treatment could completely suppress tumor growth without obvious systemic toxicity. Our study paves a new avenue for multimodal therapy of breast cancer. STATEMENT OF SIGNIFICANCE: The development of a simple but effective strategy to construct a versatile nanoplatform for multi-combined therapy still remains an enormous challenge. In this work, we developed a novel and simple nanoplatform GNRs-MPH-ALA/DOX-PEG with pH-responsive drug release for triple-combined chemotherapy (CT), photodynamic therapy (PDT) and photothermal therapy (PTT) of breast cancer. The nanoplatform could be efficiently internalized by MCF-7 cells. The intracellular GNRs-MPH-ALA/DOX-PEG could release DOX for CT, induce hyperthermia for PTT and generate high levels of ROS for PTT. Compared with single CT and dual-modal CT/PDT or CT/PTT treatments, the triple-combined CT/PDT/PTT treatment could more efficiently kill MCF-7 cells via a superadditive antitumor effect. Furthermore, upon triple-combined CT/PDT/PTT treatment, the tumor growth was completely suppressed without obvious systemic toxicity.
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Liu L, Xie HJ, Mu LM, Liu R, Su ZB, Cui YN, Xie Y, Lu WL. Functional chlorin gold nanorods enable to treat breast cancer by photothermal/photodynamic therapy. Int J Nanomedicine 2018; 13:8119-8135. [PMID: 30555230 PMCID: PMC6278843 DOI: 10.2147/ijn.s186974] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The existing chemo/radiotherapy fail to eliminate cancer cells due to the restriction of either drug resistance or radio tolerance. The predicament urges researchers to continuously explore alternative strategy for achieving a potent curative effect. METHODS Functional chlorin gold nanorods (Ce6-AuNR@SiO2-d-CPP) were fabricated aiming at treating breast cancer by photothermal/photodynamic therapy (PTT/PDT). The nanostructure was developed by synthesizing Au nanorods as the photothermal conversion material, and by coating the pegylated mesoporous SiO2 as the shell for entrapping photosensitizer Ce6 and for linking the D-type cell penetrating peptide (d-CPP). The function of Ce6-AuNR@SiO2-d-CPP was verified on human breast cancer MCF-7 cells and MCF-7 cells xenografts in nude mice. RESULTS Under combinational treatment of PTT and PDT, Ce6-AuNR@SiO2-d-CPP demonstrated a strong cytotoxicity and apoptosis inducing effects in breast cancer cells in vitro, and a robust treatment efficacy in breast cancer-bearing nude mice. The uptake mechanism involved the energy-consuming caveolin-mediated endocytosis, and Ce6-AuNR@SiO2-d-CPP in PTT/PDT mode could induce apoptosis by multiple pathways in breast cancer cells. CONCLUSION Ce6-AuNR@SiO2-d-CPP demonstrated a robust efficacy in the treatment of breast cancer by photothermal/photodynamic therapy. Therefore, the present study could offer a new promising strategy to treat the refractory breast cancer.
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Affiliation(s)
- Lei Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Hong-Jun Xie
- Department of Medicament, College of Medicine, Tibet University, Lhasa, China
| | - Li-Min Mu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Rui Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Zhan-Bo Su
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Yi-Nuo Cui
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Ying Xie
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
| | - Wan-Liang Lu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,
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Bejarano J, Navarro-Marquez M, Morales-Zavala F, Morales JO, Garcia-Carvajal I, Araya-Fuentes E, Flores Y, Verdejo HE, Castro PF, Lavandero S, Kogan MJ. Nanoparticles for diagnosis and therapy of atherosclerosis and myocardial infarction: evolution toward prospective theranostic approaches. Theranostics 2018; 8:4710-4732. [PMID: 30279733 PMCID: PMC6160774 DOI: 10.7150/thno.26284] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 06/29/2018] [Indexed: 12/22/2022] Open
Abstract
Cardiovascular diseases are the leading cause of death worldwide. Despite preventive efforts, early detection of atherosclerosis, the common pathophysiological mechanism underlying cardiovascular diseases remains elusive, and overt coronary artery disease or myocardial infarction is often the first clinical manifestation. Nanoparticles represent a novel strategy for prevention, diagnosis, and treatment of atherosclerosis, and new multifunctional nanoparticles with combined diagnostic and therapeutic capacities hold the promise for theranostic approaches to this disease. This review focuses on the development of nanosystems for therapy and diagnosis of subclinical atherosclerosis, coronary artery disease, and myocardial infarction and the evolution of nanosystems as theranostic tools. We also discuss the use of nanoparticles in noninvasive imaging, targeted drug delivery, photothermal therapies together with the challenges faced by nanosystems during clinical translation.
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Affiliation(s)
- Julian Bejarano
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Mario Navarro-Marquez
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Francisco Morales-Zavala
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Javier O. Morales
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
- Pharmaceutical Biomaterial Research Group, Department of Health Sciences, Luleå University of Technology, Luleå 97187, Sweden
| | - Ivonne Garcia-Carvajal
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Eyleen Araya-Fuentes
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Republica 275, 8370146, Santiago, Chile
| | - Yvo Flores
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Hugo E. Verdejo
- Advanced Center for Chronic Diseases (ACCDiS), División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo F. Castro
- Advanced Center for Chronic Diseases (ACCDiS), División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Advanced Center for Chronic Diseases (ACCDiS), & Centro de Estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Instituto de Ciencias Biomedicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380492, Chile
- Department of Internal Medicine (Cardiology Division), University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Marcelo J. Kogan
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile
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Liu C, Chen C, Li S, Dong H, Dai W, Xu T, Liu Y, Yang F, Zhang X. Target-Triggered Catalytic Hairpin Assembly-Induced Core–Satellite Nanostructures for High-Sensitive “Off-to-On” SERS Detection of Intracellular MicroRNA. Anal Chem 2018; 90:10591-10599. [DOI: 10.1021/acs.analchem.8b02819] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Conghui Liu
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Chao Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Haifeng Dong
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Wenhao Dai
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Tailin Xu
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Yang Liu
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Fan Yang
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Xueji Zhang
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
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Xiao X, Kuang Z, Slocik JM, Tadepalli S, Brothers M, Kim S, Mirau PA, Butkus C, Farmer BL, Singamaneni S, Hall CK, Naik RR. Advancing Peptide-Based Biorecognition Elements for Biosensors Using in-Silico Evolution. ACS Sens 2018; 3:1024-1031. [PMID: 29741092 DOI: 10.1021/acssensors.8b00159] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sensors for human health and performance monitoring require biological recognition elements (BREs) at device interfaces for the detection of key molecular biomarkers that are measurable biological state indicators. BREs, including peptides, antibodies, and nucleic acids, bind to biomarkers in the vicinity of the sensor surface to create a signal proportional to the biomarker concentration. The discovery of BREs with the required sensitivity and selectivity to bind biomarkers at low concentrations remains a fundamental challenge. In this study, we describe an in-silico approach to evolve higher sensitivity peptide-based BREs for the detection of cardiac event marker protein troponin I (cTnI) from a previously identified BRE as the parental affinity peptide. The P2 affinity peptide, evolved using our in-silico method, was found to have ∼16-fold higher affinity compared to the parent BRE and ∼10 fM (0.23 pg/mL) limit of detection. The approach described here can be applied towards designing BREs for other biomarkers for human health monitoring.
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Affiliation(s)
- Xingqing Xiao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | | | | | - Sirimuvva Tadepalli
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | | | | | | | | | | | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Carol K. Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
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Liu D, Lu X, Yang Y, Zhai Y, Zhang J, Li L. A novel fluorescent aptasensor for the highly sensitive and selective detection of cardiac troponin I based on a graphene oxide platform. Anal Bioanal Chem 2018; 410:4285-4291. [PMID: 29725733 DOI: 10.1007/s00216-018-1076-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/18/2018] [Accepted: 04/11/2018] [Indexed: 01/22/2023]
Abstract
Acute myocardial infarction (AMI) is one of the leading risks to global health. Thus, the rapid, accurate early diagnosis of AMI is highly critical. Human cardiac troponin I (cTnI) has been regarded as a golden biomarker for AMI due to its excellent selectivity. In this work, a novel fluorescent aptasensor based on a graphene oxide (GO) platform was developed for the highly sensitive and selective detection of cTnI. GO binds to the fluorescent anti-cTnI aptamer and quenches its fluorescence. In the presence of cTnI, the fluorescent anti-cTnI aptamer leaves the surface of GO, combines with cTnI because of the powerful affinity of the fluorescent anti-cTnI aptamer and cTnI, and then restores the fluorescence of the fluorescent anti-cTnI aptamer. Fluorescence-enhanced detection is highly sensitive and selective to cTnI. The method exhibited good analytical performance with a reasonable dynamic linearity at the concentration range of 0.10-6.0 ng/mL and a low detection limit of 0.07 ng/mL (S/N = 3). The fluorescent aptasensor also exhibited high selectivity toward cTnI compared with other interference proteins. The proposed method may be a potentially useful tool for cTnI determination in human serum. Graphical abstract A novel fluorescent aptasensor for the highly sensitive and selective detection of cardiac troponin I based on a graphene oxide platform.
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Affiliation(s)
- Dongkui Liu
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213016, Jiangsu, China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China
| | - Xing Lu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China
| | - Yiwen Yang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China.
| | - Yunyun Zhai
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China
| | - Jian Zhang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China
| | - Lei Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, Zhejiang, China.
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Bai T, Wang M, Cao M, Zhang J, Zhang K, Zhou P, Liu Z, Liu Y, Guo Z, Lu X. Functionalized Au@Ag-Au nanoparticles as an optical and SERS dual probe for lateral flow sensing. Anal Bioanal Chem 2018; 410:2291-2303. [PMID: 29445833 DOI: 10.1007/s00216-018-0850-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/05/2017] [Accepted: 01/03/2018] [Indexed: 01/29/2023]
Abstract
Lateral flow assay strips (LFASs) with Au nanoparticles (NPs) have been widely used as a probe for biomarkers in point-of-care testing; however, there still remain challenges in detection sensitivity and quantitative analysis. In this study, we developed a surface-enhanced Raman scattering (SERS)-based LFAS for quantitative analysis of a biomarker in the low concentration range. Moreover, apart from conventional Au NPs, three other types of citrate-capped Au-Ag bimetallic NPs: Au core with Ag shell NPs (Au@Ag NPs), rattle-like Au core in Ag-Au shell NPs (Au@Ag-Au NPs) and Ag-Au NPs were prepared and functionalized, and their solution-based SERS activities were comprehensively studied by experimental measurement and theoretical analysis. The results clearly indicated that the citrate-capped Au@Ag-Au NPs exhibited the highest SERS activity among the probes tested. Au@Ag-Au NPs were used as both optical and SERS probes in a SERS-based LFAS. In the presence of the analyte at high concentrations, a purple color appeared in the test zone. Highly sensitive and quantitative analysis was realized by measurement of SERS signals from the test lines. One of the most specific markers for cardiac injury, cardiac troponin I (cTnI), was chosen as the detection model. The detection limit of the SERS-based LFAS for cardiac troponin I was 0.09 ng/mL, lowered by nearly 50 times compared with visual results, and could be further lowered by optimization. These results demonstrated that the SERS-based LFAS using citrate-capped Au@Ag-Au NPs as probes can be a powerful tool for highly sensitive and quantitative detection of biomarkers. Graphical abstract A surface-enhanced Raman scattering (SERS)-based lateral flow assay strip using rattle-like Au core in Ag-Au shell (Au@Ag-Au) nanoparticles as probes was developed for quantitative analysis of a biomarker, with a detection limit nearly 50 times lower than that of visual assessment. C control line, T test line.
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Affiliation(s)
- Tingting Bai
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Meng Wang
- School of Science, Nantong University, Nantong, Jiangsu, 226007, China
| | - Min Cao
- School of Science, Nantong University, Nantong, Jiangsu, 226007, China
| | - Juan Zhang
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Kangzhen Zhang
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Ping Zhou
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Zhengxia Liu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Ying Liu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Zhirui Guo
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China.
| | - Xiang Lu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China.
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Xu W, Qian J, Hou G, Suo A, Wang Y, Wang J, Sun T, Yang M, Wan X, Yao Y. Hyaluronic Acid-Functionalized Gold Nanorods with pH/NIR Dual-Responsive Drug Release for Synergetic Targeted Photothermal Chemotherapy of Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36533-36547. [PMID: 28975790 DOI: 10.1021/acsami.7b08700] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Tumor-targeted delivery of photothermal agent and controlled release of concomitant chemotherapeutic drug are two key factors for combined photothermal chemotherapy. Herein, we developed a pH/near-infrared (NIR) dual-triggered drug release nanoplatform based on hyaluronic acid (HA)-functionalized gold nanorods (GNRs) for actively targeted synergetic photothermal chemotherapy of breast cancer. Targeting folate (FA), dopamine, and adipic acid dihydrazide triconjugated HA was first synthesized and used to decorate GNRs via Au-catechol bonds, and then an anticarcinogen doxorubicin (DOX) was conjugated onto HA moieties via an acid-labile hydrazone linkage, resulting in multifunctional nanoparticles GNRs-HA-FA-DOX. The nanoparticles exhibited excellent stability and had a pH and NIR dual-responsive drug release behavior. In vitro studies showed that the nanoparticles could be efficiently internalized into breast cancer MCF-7 cells and kill them under NIR irradiation in a synergistic fashion via inducing cell apoptosis. Pharmacokinetics and biodistribution studies in tumor-bearing mice indicated that the nanoparticles had a long blood circulation with a half-life of 2.4 h and exhibited a high accumulation of 11.3% in tumor site. The tumors of mice treated with combined chemotherapy and photothermal therapy were completely suppressed without obvious systemic toxicity after 20 d of treatment. These results demonstrated a great potential of GNRs-HA-FA-DOX nanoparticles for targeted synergistic therapy of breast cancer.
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Affiliation(s)
- Weijun Xu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Junmin Qian
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Guanghui Hou
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Aili Suo
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University , Xi'an 710061, China
| | - Yaping Wang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jinlei Wang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Tiantian Sun
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Ming Yang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Xueli Wan
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Yu Yao
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University , Xi'an 710061, China
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38
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Graphite paper-based bipolar electrode electrochemiluminescence sensing platform. Biosens Bioelectron 2017; 94:47-55. [DOI: 10.1016/j.bios.2017.02.033] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/20/2017] [Accepted: 02/22/2017] [Indexed: 12/14/2022]
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Zhang H, Guo S, Fu S, Zhao Y. A Near-Infrared Light-Responsive Hybrid Hydrogel Based on UCST Triblock Copolymer and Gold Nanorods. Polymers (Basel) 2017; 9:polym9060238. [PMID: 30970915 PMCID: PMC6432410 DOI: 10.3390/polym9060238] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/13/2017] [Accepted: 06/17/2017] [Indexed: 11/22/2022] Open
Abstract
We report a near-infrared (NIR) light-responsive hydrogel that is capable of undergoing the gel to sol transition upon 785 nm light exposure based on a photothermal effect. The new hydrogel design relies on loading gold nanorods (AuNRs) in an ABA-type triblock copolymer, namely P(AAm–co–AN)–b–PDMA–b–P(AAm–co–AN), where P(AAm–co–AN) stands for a random copolymer of acrylamide and acrylonitrile that exhibits an upper critical solution temperature (UCST) in aqueous solution and PDMA is water-soluble polydimethylacrylamide. At solution temperature below UCST, the insoluble P(AAm–co–AN) blocks lead to formation of hydrogel of flower-like micelles. When the hydrogel is exposed to 785 nm NIR light, the absorption due to the longitudinal surface plasmon resonance of loaded AuNRs generates heat that raises the hydrogel temperature above UCST and, consequently, the gel-to-sol transition. The NIR light-triggered release of a protein loaded in the hydrogel was found to display a switchable fashion.
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Affiliation(s)
- Hu Zhang
- Département de Chimie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
| | - Shengwei Guo
- Département de Chimie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
- School of Material Science & Engineering, Beifang University of Nationalities, Yinchuan 750021, China.
| | - Shangyi Fu
- Département de Chimie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
| | - Yue Zhao
- Département de Chimie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
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40
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Manivasagan P, Bharathiraja S, Santha Moorthy M, Oh YO, Song K, Seo H, Oh J. Anti-EGFR Antibody Conjugation of Fucoidan-Coated Gold Nanorods as Novel Photothermal Ablation Agents for Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14633-14646. [PMID: 28398713 DOI: 10.1021/acsami.7b00294] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The development of novel photothermal ablation agents as cancer nanotheranostics has received a great deal of attention in recent decades. Biocompatible fucoidan (Fu) is used as the coating material for gold nanorods (AuNRs) and subsequently conjugated with monoclonal antibodies against epidermal growth factor receptor (anti-EGFR) as novel photothermal ablation agents for cancer nanotheranostics because of their excellent biocompatibility, biodegradability, nontoxicity, water solubility, photostability, ease of surface modification, strongly enhanced absorption in near-infrared (NIR) regions, target specificity, minimal invasiveness, fast recovery, and prevention of damage to normal tissues. Anti-EGFR Fu-AuNRs have an average particle size of 96.37 ± 3.73 nm. Under 808 nm NIR laser at 2 W/cm2 for 5 min, the temperature of the solution containing anti-EGFR Fu-AuNRs (30 μg/mL) increased by 52.1 °C. The anti-EGFR Fu-AuNRs exhibited high efficiency for the ablation of MDA-MB-231 cells in vitro. In vivo photothermal ablation exhibited that tumor tissues fully recovered without recurrence and finally were reconstructed with normal tissues by the 808 nm NIR laser irradiation after injection of anti-EGFR Fu-AuNRs. These results suggest that the anti-EGFR Fu-AuNRs would be novel photoablation agents for future cancer nanotheranostics.
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Affiliation(s)
- Panchanathan Manivasagan
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Subramaniyan Bharathiraja
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Madhappan Santha Moorthy
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Yun-Ok Oh
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Kyeongeun Song
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Hansu Seo
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
| | - Junghwan Oh
- Marine-Integrated Bionics Research Center and ‡Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University , Busan 48513, Republic of Korea
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41
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On/off-switchable LSPR nano-immunoassay for troponin-T. Sci Rep 2017; 7:44027. [PMID: 28382946 PMCID: PMC5382532 DOI: 10.1038/srep44027] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/31/2017] [Indexed: 12/25/2022] Open
Abstract
Regeneration of immunosensors is a longstanding challenge. We have developed a re-usable troponin-T (TnT) immunoassay based on localised surface plasmon resonance (LSPR) at gold nanorods (GNR). Thermosensitive poly(N-isopropylacrylamide) (PNIPAAM) was functionalised with anti-TnT to control the affinity interaction with TnT. The LSPR was extremely sensitive to the dielectric constant of the surrounding medium as modulated by antigen binding after 20 min incubation at 37 °C. Computational modelling incorporating molecular docking, molecular dynamics and free energy calculations was used to elucidate the interactions between the various subsystems namely, IgG-antibody (c.f., anti-TnT), PNIPAAM and/or TnT. This study demonstrates a remarkable temperature dependent immuno-interaction due to changes in the PNIPAAM secondary structures, i.e., globular and coil, at above or below the lower critical solution temperature (LCST). A series of concentrations of TnT were measured by correlating the λLSPR shift with relative changes in extinction intensity at the distinct plasmonic maximum (i.e., 832 nm). The magnitude of the red shift in λLSPR was nearly linear with increasing concentration of TnT, over the range 7.6 × 10−15 to 9.1 × 10−4 g/mL. The LSPR based nano-immunoassay could be simply regenerated by switching the polymer conformation and creating a gradient of microenvironments between the two states with a modest change in temperature.
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Goldsmith JG, L’Ecuyer H, Dean D, Goldsmith EC. Application of Gold Nanorods in Cardiovascular Science. NANOSTRUCTURE SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1007/978-3-319-59662-4_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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43
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Singal S, Srivastava AK. Electrochemical Impedance Analysis of Biofunctionalized Conducting Polymer-Modified Graphene-CNTs Nanocomposite for Protein Detection. NANO-MICRO LETTERS 2016; 9:7. [PMID: 30460304 PMCID: PMC6223772 DOI: 10.1007/s40820-016-0108-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/23/2016] [Indexed: 06/09/2023]
Abstract
We report an electrodeposited poly(pyrrole-co-pyrrolepropylic acid) copolymer modified electroactive graphene-carbon nanotubes composite deposited on a glassy carbon electrode to detect the protein antigen (cTnI). The copolymer provides pendant carboxyl groups for the site-specific covalent immobilization of protein antibody, anti-troponin I. The hybrid nanocomposite was used as a transducer for biointerfacial impedance sensing for cTnI detection. The results show that the hybrid exhibits a pseudo capacitive behaviour with a maximum phase angle of 49° near 1 Hz, which is due to the inhomogeneous and porous structure of the hybrid composition. The constant phase element of copolymer is 0.61 (n = 0.61), whereas, it is 0.88 (n = 0.88) for the hybrid composites, indicating a comparatively homogeneous microstructure after biomolecular functionalization. The transducer shows a linear change in charge transfer characteristic (R et) on cTnI immunoreaction for spiked human serum in the concentration range of 1.0 pg mL-1-10.0 ng mL-1. The sensitivity of the transducer is 167.8 ± 14.2 Ω cm2 per decade, and it also exhibits high specificity and good reproducibility.
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Affiliation(s)
- Shobhita Singal
- 1CSIR-National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi, 110012 India
- 2Academy of Scientific and Innovative Research (AcSIR), CSIR-National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi, 110012 India
| | - Avanish K Srivastava
- 1CSIR-National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi, 110012 India
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44
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Localized surface plasmon resonance of gold nanorods and assemblies in the view of biomedical analysis. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.03.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Affiliation(s)
- Xu Han
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Cox Science
Center, Coral Gables, Florida 33146, United States
| | - Shanghao Li
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Cox Science
Center, Coral Gables, Florida 33146, United States
| | - Zhili Peng
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Cox Science
Center, Coral Gables, Florida 33146, United States
| | - Abdelhameed M. Othman
- Department
of Chemistry, Faculty of Science at Yanbu, Taibah University, P.O. Box 344, Medina, Kingdom of Saudi Arabia
| | - Roger Leblanc
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Cox Science
Center, Coral Gables, Florida 33146, United States
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46
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Shi Y, Wang J, Wang C, Zhai TT, Bao WJ, Xu JJ, Xia XH, Chen HY. Hot Electron of Au Nanorods Activates the Electrocatalysis of Hydrogen Evolution on MoS2 Nanosheets. J Am Chem Soc 2015; 137:7365-70. [DOI: 10.1021/jacs.5b01732] [Citation(s) in RCA: 471] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yi Shi
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Jiong Wang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Chen Wang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Ting-Ting Zhai
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Wen-Jing Bao
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
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47
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Li F, Yu Y, Cui H, Yang D, Bian Z. Label-free electrochemiluminescence immunosensor for cardiac troponin I using luminol functionalized gold nanoparticles as a sensing platform. Analyst 2013; 138:1844-50. [DOI: 10.1039/c3an36805j] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Mohammed MI, Desmulliez MPY. Lab-on-a-chip based immunosensor principles and technologies for the detection of cardiac biomarkers: a review. LAB ON A CHIP 2011; 11:569-95. [PMID: 21180774 DOI: 10.1039/c0lc00204f] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This review examines the current state of the art lab-on-a-chip and microfluidic based biosensor technologies used in the detection of cardiac biomarkers. The determination and quantification of blood based, cardiac biomarkers are crucial in the triage and management of a range of cardiac related conditions, where time delay has a major impact on short and longer-term outcomes of a patient. The design and manufacturing of biomarker detection systems are multi-disciplinary in nature and require researchers to have knowledge of both life sciences and engineering for the full potential of this field to be realised. This review will therefore provide a comprehensive overview of chip based immunosensing technology as applied to cardiac biomarker detection, while discussing the potential suitability and limitations of each configuration for incorporation within a clinical diagnostics device suitable for point-of-care applications.
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Affiliation(s)
- Mazher-Iqbal Mohammed
- Heriot-Watt University, MicroSystems Engineering Centre (MISEC), School of Engineering & Physical Sciences, Earl Mountbatten Building, Edinburgh, Scotland
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49
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Liu L, Guo Z, Xu L, Xu R, Lu X. Facile purification of colloidal NIR-responsive gold nanorods using ions assisted self-assembly. NANOSCALE RESEARCH LETTERS 2011; 6:143. [PMID: 21711657 PMCID: PMC3211191 DOI: 10.1186/1556-276x-6-143] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 02/14/2011] [Indexed: 05/29/2023]
Abstract
Anisotropic metal nanoparticles have been paid much attention because the broken symmetry of these nanoparticles often leads to novel properties. Anisotropic gold nanoparticles obtained by wet chemical methods inevitably accompany spherical ones due to the intrinsically high symmetry of face-centred cubic metal. Therefore, it is essential for the purification of anisotropic gold nanoparticles. This work presents a facile, low cost while effective solution to the challenging issue of high-purity separation of seed-mediated grown NIR-responsive gold nanorods from co-produced spherical and cubic nanoparticles in solution. The key point of our strategy lies in different shape-dependent solution stability between anisotropic nanoparticles and symmetric ones and selective self-assembly and subsequent precipitation can be induced by introducing ions to the as-made nanorod solution. As a result, gold nanorods of excellent purity (97% in number density) have been obtained within a short time, which has been confirmed by SEM observation and UV-vis-NIR spectroscopy respectively. Based on the experimental facts, a possible shape separation mechanism was also proposed.
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Affiliation(s)
- Lianke Liu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zhirui Guo
- The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Lina Xu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Ruizhi Xu
- Department of Radiotherapy, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiang Lu
- The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
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Guo Z, Fan X, Liu L, Bian Z, Gu C, Zhang Y, Gu N, Yang D, Zhang J. Achieving high-purity colloidal gold nanoprisms and their application as biosensing platforms. J Colloid Interface Sci 2010; 348:29-36. [DOI: 10.1016/j.jcis.2010.04.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Revised: 03/29/2010] [Accepted: 04/09/2010] [Indexed: 12/28/2022]
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