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Cortes-Cano H, Olvera LI, Méndez-Aguilar EM, España-Sánchez BL, Arriaga LG, Oza G, Herrera-Celis J. Surface Functionalization and Escherichia coli Detection Using Surface-Enhanced Raman Spectroscopy Driven by Functional Organic Polymer/Gold Nanofilm-Based Microfluidic Chip. BIOSENSORS 2023; 13:994. [PMID: 38131754 PMCID: PMC10741724 DOI: 10.3390/bios13120994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 12/23/2023]
Abstract
In this work, a microfluidic prototype based on polymeric materials was developed to monitor surface processes using surface-enhanced Raman spectroscopy (SERS), keeping the reagents free of environmental contamination. The prototype was fabricated on poly(methyl methacrylic acid) (PMMA). A micrometric membrane of a functional organic polymer (FOP) based on p-terphenyl and bromopyruvic acid monomers was formed on the PMMA surface to promote the formation of metal nanoclusters. Au nanosized film was deposited on the FOP membrane to give rise to the SERS effect. A microchannel was formed on another piece of PMMA using micromachining. A representative 3D model of the prototype layer arrangement was built and simulated in COMSOL Multiphysics® to approximate the electric field distribution and calculate the power enhancement factor as the Au film changes over time. The fabrication process was characterized using UV-visible and Raman spectroscopies and XPS. The prototype was tested using a Raman microscope and liquid solutions of cysteamine and Escherichia coli (E. coli). The simulation results demonstrated that the morphological characteristics of the Au layer give rise to the SERS effect, and the power enhancement factor reaches values as high as 8.8 × 105 on the FOP surface. The characterization results showed the formation of the FOP and the Au film on PMMA and the surface functionalization with amine groups. The Raman spectra of the prototype showed temporal evolution as different compounds were deposited on the upper wall of the microchannel. Characteristic peaks associated with these compounds were detected with continuous monitoring over time. This prototype offers many benefits for applications like monitoring biological processes. Some advantages include timely surface evaluation while avoiding environmental harm, decreased use of reagents and samples, minimal interference with the process by measuring, and detecting microorganisms in just 1 h, as demonstrated with the E. coli sample.
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Affiliation(s)
- Hugo Cortes-Cano
- Dirección de Ciencia, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro S/N, Sanfandila, Querétaro 76703, Pedro Escobedo, Mexico; (H.C.-C.); (B.L.E.-S.); (L.G.A.); (G.O.)
| | - Lilian Iraís Olvera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, CU, Coyoacán, Ciudad de Mexico 04510, Mexico;
| | | | - Beatriz Liliana España-Sánchez
- Dirección de Ciencia, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro S/N, Sanfandila, Querétaro 76703, Pedro Escobedo, Mexico; (H.C.-C.); (B.L.E.-S.); (L.G.A.); (G.O.)
| | - Luis Gerardo Arriaga
- Dirección de Ciencia, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro S/N, Sanfandila, Querétaro 76703, Pedro Escobedo, Mexico; (H.C.-C.); (B.L.E.-S.); (L.G.A.); (G.O.)
| | - Goldie Oza
- Dirección de Ciencia, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro S/N, Sanfandila, Querétaro 76703, Pedro Escobedo, Mexico; (H.C.-C.); (B.L.E.-S.); (L.G.A.); (G.O.)
| | - José Herrera-Celis
- Dirección de Ciencia, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro S/N, Sanfandila, Querétaro 76703, Pedro Escobedo, Mexico; (H.C.-C.); (B.L.E.-S.); (L.G.A.); (G.O.)
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2
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Yuan H, Zhang P, Zhan H, Zhang H, Sun X, Wang Y, Zhang H. Theoretical investigation of turn off–on mechanism of a new fluorescence probe L. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Zdaniauskienė A, Talaikis M, Charkova T, Sadzevičienė R, Labanauskas L, Niaura G. Electrochemical Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy of Imidazole Ring Functionalized Monolayer on Smooth Gold Electrode. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196531. [PMID: 36235068 PMCID: PMC9573715 DOI: 10.3390/molecules27196531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022]
Abstract
The imidazole ring (Im) of histidine side chains plays a unique role in the function of proteins through covalent bonding with metal ions and hydrogen bonding interactions with adjusted biomolecules and water. At biological interfaces, these interactions are modified because of the presence of an electric field. Self-assembled monolayers (SAMs) with the functional Im group mimic the histidine side chain at electrified interfaces. In this study, we applied in-situ shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) to probe the structure and hydrogen bonding of Im-functionalized SAM on smooth Au at the electrochemical interface. The self-assembly of molecules on the Au induced the proton shift from N1 atom (Tautomer-I), which is the dominant form of Im in the bulk sample, to N3 atom (Tautomer-II). The impact of electrode potential on the hydrogen bonding interaction strength of the Im ring was identified by SHINERS. Temperature-Raman measurements and density functional theory (DFT) analysis revealed the spectral marker for Im ring packing (mode near 1496-1480 cm-1) that allowed us to associate the confined and strongly hydrogen bonded interfacial Im groups with electrode polarization at -0.8 V. Reflection adsorption IR (RAIR) spectra of SAMs with and without Im revealed that the bulky ring prevented the formation of a strongly hydrogen bonded amide group network.
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Affiliation(s)
- Agnė Zdaniauskienė
- Center for Physical Sciences and Technology (FTMC), Department of Organic Chemistry, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
| | - Martynas Talaikis
- Life Sciences Center, Institute of Biochemistry, Department of Bioelectrochemistry and Biospectroscopy, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
- Correspondence: (M.T.); (G.N.)
| | - Tatjana Charkova
- Center for Physical Sciences and Technology (FTMC), Department of Organic Chemistry, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
| | - Rita Sadzevičienė
- Center for Physical Sciences and Technology (FTMC), Department of Organic Chemistry, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
| | - Linas Labanauskas
- Center for Physical Sciences and Technology (FTMC), Department of Organic Chemistry, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
| | - Gediminas Niaura
- Center for Physical Sciences and Technology (FTMC), Department of Organic Chemistry, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
- Life Sciences Center, Institute of Biochemistry, Department of Bioelectrochemistry and Biospectroscopy, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
- Correspondence: (M.T.); (G.N.)
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4
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Su YB, Zhao X, Chen LJ, Qian HL, Yan XP. Fabrication of G-quadruplex/porphyrin conjugated gold/persistent luminescence theranostic nanoprobe for imaging-guided photodynamic therapy. Talanta 2021; 233:122567. [PMID: 34215063 DOI: 10.1016/j.talanta.2021.122567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 11/30/2022]
Abstract
Photodynamic therapy (PDT) received great attention in cancer therapy due to the advantages of negligible drug resistance, low side effects, and minimal invasiveness. Development of theranostic nanoprobes with specific imaging-guided PDT is of great significance in the field. Herein we report the fabrication of a novel theranostic nanoprobe porphyrin/G-quadruplex conjugated gold/persistent luminescence nanocomposites for imaging-guided PDT. The developed nanoprobe contains NIR-emitting persistent luminescent nanoparticles (PLNP) as the core for autofluorescence-free bioimaging and Au coating on PLNP for facile subsequent DNA conjugation. The DNA sequence is designed to contain G-rich AS1411 aptamer for recognizing the over-expressed cellular nucleolin of cancer cell and forming a G-quadruplex structure to combine with tetrakis (4-carboxyphenyl) porphyrin (TCPP) to realize PDT. The AS1411 aptamer-contained DNA conjugated Au-coated PLNP is rapidly prepared via a freezing method with high content of DNA and good aqueous stability. Meanwhile, TCPP is easily loaded into the G-quadruplex structure formed from G-rich AS1411 aptamer on the surface of Au/PLNP in presence of K+. The theranostic nanoprobe gives integrated merits of PLNP for autofluorescence-free bioimging, TCPP for PDT and AS1411 aptamer-contained DNA for specific binding to cancer cells. This work provides a new specially designed imaging-guided PDT nanoplatform for theranostics.
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Affiliation(s)
- Yu-Bin Su
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Xu Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Li-Jian Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Hai-Long Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.
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5
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Yang X, Cheng Q, Monnier V, Charles L, Karoui H, Ouari O, Gigmes D, Wang R, Kermagoret A, Bardelang D. Guest Exchange by a Partial Energy Ratchet in Water. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xue Yang
- Aix Marseille Univ CNRS ICR Marseille France
| | - Qian Cheng
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Avenida da Universidade Taipa Macau China
| | - Valerie Monnier
- Aix Marseille Univ CNRS Centrale Marseille, FSCM Spectropole Marseille France
| | | | | | | | | | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Avenida da Universidade Taipa Macau China
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6
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Yang X, Cheng Q, Monnier V, Charles L, Karoui H, Ouari O, Gigmes D, Wang R, Kermagoret A, Bardelang D. Guest Exchange by a Partial Energy Ratchet in Water. Angew Chem Int Ed Engl 2021; 60:6617-6623. [DOI: 10.1002/anie.202014399] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/20/2020] [Indexed: 01/28/2023]
Affiliation(s)
- Xue Yang
- Aix Marseille Univ CNRS ICR Marseille France
| | - Qian Cheng
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Avenida da Universidade Taipa Macau China
| | - Valerie Monnier
- Aix Marseille Univ CNRS Centrale Marseille, FSCM Spectropole Marseille France
| | | | | | | | | | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Avenida da Universidade Taipa Macau China
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7
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A sensitive "off-on" carbon dots-Ag nanoparticles fluorescent probe for cysteamine detection via the inner filter effect. Talanta 2021; 221:121463. [PMID: 33076083 DOI: 10.1016/j.talanta.2020.121463] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 12/23/2022]
Abstract
In this study, we describe the construction of an "off-on" fluorescent probe based on carbon dots (CDs) and silver nanoparticles (AgNPs) mixture for sensitive and selective detection of cysteamine. By mixing AgNPs with CDs solution, the fluorescence of CDs was significantly decreased due to the inner filter effect (IFE). Upon addition of cysteamine to the mixed aqueous of CDs and AgNPs, the silver-sulfur bond between cysteamine and AgNPs caused AgNPs to aggregate, and the quenched fluorescence of CDs could in turn be recovered. The probe was employed to quantitatively detect cysteamine, and the results showed that it could detect cysteamine in a concentration range of 2-16 μM with the detection limit of 0.35 μM (signal-to-noise ratio of 3). The detection of cysteamine spiked into bovine serum samples showed high recovery rates ranging from 95.5 to 111.7%. More importantly, the developed probe had low cytotoxicity and was successfully used for in vivo imaging of HepG2 cells.
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8
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Atallah C, Charcosset C, Greige-Gerges H. Challenges for cysteamine stabilization, quantification, and biological effects improvement. J Pharm Anal 2020; 10:499-516. [PMID: 33425447 PMCID: PMC7775854 DOI: 10.1016/j.jpha.2020.03.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/26/2022] Open
Abstract
The aminothiol cysteamine, derived from coenzyme A degradation in mammalian cells, presents several biological applications. However, the bitter taste and sickening odor, chemical instability, hygroscopicity, and poor pharmacokinetic profile of cysteamine limit its efficacy. The use of encapsulation systems is a good methodology to overcome these undesirable properties and improve the pharmacokinetic behavior of cysteamine. Besides, the conjugation of cysteamine to the surface of nanoparticles is generally proposed to improve the intra-oral delivery of cyclodextrin-drug inclusion complexes, as well as to enhance the colorimetric detection of compounds by a gold nanoparticle aggregation method. On the other hand, the detection and quantification of cysteamine is a challenging mission due to the lack of a chromophore in its structure and its susceptibility to oxidation before or during the analysis. Derivatization agents are therefore applied for the quantification of this molecule. To our knowledge, the derivatization techniques and the encapsulation systems used for cysteamine delivery were not reviewed previously. Thus, this review aims to compile all the data on these methods as well as to provide an overview of the various biological applications of cysteamine focusing on its skin application.
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Affiliation(s)
- Carla Atallah
- Bioactive Molecules Research Laboratory, Doctoral School of Sciences and Technologies, Faculty of Sciences, Lebanese University, Lebanon
- Laboratory of Automatic Control, Chemical and Pharmaceutical Engineering, Claude Bernard Lyon 1 University, France
| | - Catherine Charcosset
- Laboratory of Automatic Control, Chemical and Pharmaceutical Engineering, Claude Bernard Lyon 1 University, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Doctoral School of Sciences and Technologies, Faculty of Sciences, Lebanese University, Lebanon
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9
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Islam M, Vogler RJ, Abdullah Al Hasnine SM, Hernández S, Malekzadeh N, Hoelen TP, Hatakeyama ES, Bhattacharyya D. Mercury Removal from Wastewater Using Cysteamine Functionalized Membranes. ACS OMEGA 2020; 5:22255-22267. [PMID: 32923783 PMCID: PMC7482228 DOI: 10.1021/acsomega.0c02526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/13/2020] [Indexed: 05/04/2023]
Abstract
This study demonstrates a three-step process consisting of primary pre-filtration followed by ultrafiltration (UF) and adsorption with thiol-functionalized microfiltration membranes (thiol membranes) to effectively remove mercury sulfide nanoparticles (HgS NPs) and dissolved mercury (Hg2+) from wastewater. Thiol membranes were synthesized by incorporating either cysteine (Cys) or cysteamine (CysM) precursors onto polyacrylic acid (PAA)-functionalized polyvinylidene fluoride membranes. Carbodiimide chemistry was used to cross-link thiol (-SH) groups on membranes for metal adsorption. The thiol membranes and intermediates of the synthesis were tested for permeability and long-term mercury removal using synthetic waters and industrial wastewater spiked with HgS NPs and a Hg2+ salt. Results show that treatment of the spiked wastewater with a UF membrane removed HgS NPs to below the method detection level (<2 ppb) for up to 12.5 h of operation. Flux reductions that occurred during the experiment were reversible by washing with water, suggesting negligible permanent fouling. Dissolved Hg2+ species were removed to non-detection levels by passing the UF-treated wastewater through a CysM thiol membrane. The adsorption efficiency in this long-term study (>20 h) was approximately 97%. Addition of Ca2+ cations reduced the adsorption efficiencies to 82% for the CysM membrane and to 40% for the Cys membrane. The inferior performance of Cys membranes may be explained by the presence of a carboxyl (-COOH) functional group in Cys, which may interfere in the adsorption process in the presence of multiple cations because of multication absorption. CysM membranes may therefore be more effective for treatment of wastewater than Cys membranes. Focused ion beam characterization of a CysM membrane cross section demonstrates that the adsorption of heavy metals is not limited to the membrane surface but takes place across the entire pore length. Experimental results for adsorptions of selected heavy metals on thiol membranes over a wide range of operating conditions could be predicted with modeling. These results show promising potential industrial applications of thiol-functionalized membranes.
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Affiliation(s)
- Mohammad
Saiful Islam
- Department
of Chemical and Materials Engineering, University
of Kentucky, Lexington Kentucky 40506, United States
| | - Ronald J. Vogler
- Department
of Chemical and Materials Engineering, University
of Kentucky, Lexington Kentucky 40506, United States
| | | | - Sebastián Hernández
- Department
of Chemical and Materials Engineering, University
of Kentucky, Lexington Kentucky 40506, United States
| | - Nga Malekzadeh
- Chevron
Energy Technology Company, Richmond, California 94802, United States
| | - Thomas P. Hoelen
- Chevron
Energy Technology Company, Richmond, California 94802, United States
| | - Evan S. Hatakeyama
- Chevron
Energy Technology Company, Richmond, California 94802, United States
| | - Dibakar Bhattacharyya
- Department
of Chemical and Materials Engineering, University
of Kentucky, Lexington Kentucky 40506, United States
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10
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Cao L, Li Z, Jia R, Chen L, Wu Y, Di J. Sensitive Photoelectrochemical Determination of Ciprofloxacin Using an Indium Tin Oxide Photoelectrode Modified with Small Gold Nanoparticles. ANAL LETT 2020. [DOI: 10.1080/00032719.2019.1709481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ling Cao
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, China
| | - Zheng Li
- Yuhang District Center for Disease Control and Prevention, Hangzhou, Zhejiang Province, China
| | - Rui Jia
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, China
| | - Li Chen
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, China
| | - Ying Wu
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, China
| | - Junwei Di
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, China
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11
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Hernández S, Islam MS, Thompson S, Kearschner M, Hatakeyama E, Malekzadeh N, Hoelen T, Bhattacharyya D. Thiol-Functionalized Membranes for Mercury Capture from Water. Ind Eng Chem Res 2020; 59:5287-5295. [PMID: 33208988 DOI: 10.1021/acs.iecr.9b03761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pore functionalized membranes with appropriate ion exchange/chelate groups allow toxic metal sorption under convective flow conditions. This study explores the sorption capacity of ionic mercury in a polyvinylidene fluoride-poly(acrylic acid) (PVDFs-PAA) functionalized membrane immobilized with cysteamine (MEA). Two methods of MEA immobilization to the PVDF-PAA membrane have been assessed: (i) ion exchange (IE) and (ii) carbodiimide cross-linker chemistry using 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS), known as EDC/NHS coupling. The ion exchange method demonstrates that cysteamine (MEA) can be immobilized effectively on PVDF-PAA membranes without covalent attachment. The effectiveness of the MEA immobilized membranes to remove ionic mercury from the water was evaluated by passing a dissolved mercury(II) nitrate solution through the membranes. The sorption capacity of mercury for MEA immobilized membrane prepared by the IE method is 1015 mg/g PAA. On the other hand, the sorption capacity of mercury for MEA immobilized membrane prepared by EDC/NHS chemistry is 2446 mg/g PAA, indicating that membrane functionalization by EDC/NHS coupling enhanced mercury sorption 2.4 times compared to the IE method. The efficiencies of Hg removal are 94.1 ± 1.1 and 99.1 ± 0.1% for the MEA immobilized membranes prepared by IE and EDC/NHS coupling methods, respectively. These results show potential applications of MEA immobilized PVDF-PAA membranes for industrial wastewater treatment specifically from energy and mining industries to remove mercury and other toxic metals.
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Affiliation(s)
- Sebastián Hernández
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Md Saiful Islam
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Samuel Thompson
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Madison Kearschner
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Evan Hatakeyama
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Nga Malekzadeh
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Thomas Hoelen
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Dibakar Bhattacharyya
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
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12
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Karlsson JKG, Laude A, Hall MJ, Harriman A. Photo-isomerization of the Cyanine Dye Alexa-Fluor 647 (AF-647) in the Context of dSTORM Super-Resolution Microscopy. Chemistry 2019; 25:14983-14998. [PMID: 31515919 DOI: 10.1002/chem.201904117] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Indexed: 02/06/2023]
Abstract
Cyanine dyes, as used in super-resolution fluorescence microscopy, undergo light-induced "blinking", enabling localization of fluorophores with spatial resolution beyond the optical diffraction limit. Despite a plethora of studies, the molecular origins of this blinking are not well understood. Here, we examine the photophysical properties of a bio-conjugate cyanine dye (AF-647), used extensively in dSTORM imaging. In the absence of a potent sacrificial reductant, light-induced electron transfer and intermediates formed via the metastable, triplet excited state are considered unlikely to play a significant role in the blinking events. Instead, it is found that, under conditions appropriate to dSTORM microscopy, AF-647 undergoes reversible photo-induced isomerization to at least two long-lived dark species. These photo-isomers are characterized spectroscopically and their interconversion probed by computational means. The first-formed isomer is light sensitive and transforms to a longer-lived species in modest yield that could be involved in dSTORM related blinking. Permanent photobleaching of AF-647 occurs with very low quantum yield and is partially suppressed by the anaerobic redox buffer.
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Affiliation(s)
- Joshua K G Karlsson
- Molecular Photonics Laboratory, SNES, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Alex Laude
- Bio-Imaging Unit, Medical School, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Michael J Hall
- School of Natural and Environmental Sciences, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Anthony Harriman
- Molecular Photonics Laboratory, SNES, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
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Nomura N, Nishihara R, Nakajima T, Kim SB, Iwasawa N, Hiruta Y, Nishiyama S, Sato M, Citterio D, Suzuki K. Biothiol-Activatable Bioluminescent Coelenterazine Derivative for Molecular Imaging in Vitro and in Vivo. Anal Chem 2019; 91:9546-9553. [PMID: 31291724 DOI: 10.1021/acs.analchem.9b00694] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There is a high demand for sensitive biothiol probes targeting cysteine, glutathione, and homocysteine. These biothiols are known as playing essential roles to maintain homeostasis and work as indicators of many diseases. This work presents a bioluminescent probe (named AMCM) to detect biothiols in live mammalian cells and in vivo with a limit of detection of 0.11 μM for cysteine in solution and high selectivity for biothiols, making it suitable for real-time biothiol detection in biological systems. Upon application to live cells, AMCM showed low cytotoxicity and sensitively reported bioluminescence in response to changes of biothiol levels. Furthermore, a bioluminescence resonance energy transfer system consisting of AMCM combined with the near-infrared fluorescent protein iRFP713 was applied to in vivo imaging, with emitted tissue-permeable luminescence in living mice. In summary, this work demonstrates that AMCM is of high practical value for the detection of biothiols in living cells and for deep tissue imaging in living animals.
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Affiliation(s)
| | | | - Takahiro Nakajima
- Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro , Tokyo , Japan
| | - Sung Bae Kim
- National Institute of Advanced Industrial Science and Technology , 1-1-1 Umezono , Tsukuba , Ibaraki 305-8560 , Japan
| | | | | | | | - Moritoshi Sato
- Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro , Tokyo , Japan
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Diamai S, Negi DPS. Cysteine-stabilized silver nanoparticles as a colorimetric probe for the selective detection of cysteamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:203-208. [PMID: 30826579 DOI: 10.1016/j.saa.2019.02.101] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/19/2019] [Accepted: 02/24/2019] [Indexed: 06/09/2023]
Abstract
The purpose of the present research was to design a method for the colorimetric determination of cysteamine. We have employed cysteine-stabilized silver nanoparticles (AgNPs) as a probe. The addition of cysteamine resulted in the quenching of the 400 nm surface plasmon resonance (SPR) band of the AgNPs. It was accompanied by the appearance of a new absorption band at 560 nm. The colour of the colloidal AgNPs changed from yellow to dark brown within a few seconds. The change in colour of the AgNPs was due to their aggregation induced by the addition of cysteamine. Significantly, other biomolecules such as arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutathione, glycine, methionine and 6-mercaptopurine did not cause any change in the colour of the AgNPs. The limit of detection (LOD) of the method was 0.37 μM. The mechanism of the aggregation of the AgNPs induced by cysteamine has also been described. The method has been applied for the detection of cysteamine in human blood serum.
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Affiliation(s)
- Siewdorlang Diamai
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Devendra P S Negi
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India.
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15
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Toomjeen P, Phanchai W, Choodet C, Chompoosor A, Thanan R, Sakonsinsiri C, Puangmali T. Designing an Aptasensor Based on Cysteamine-Capped AuNPs for 8-Oxo-dG Detection: A Molecular Dynamics Approach and Experimental Validation. J Phys Chem B 2019; 123:1129-1138. [DOI: 10.1021/acs.jpcb.8b10436] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | | | - Apiwat Chompoosor
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
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16
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Stewart SA, Coulson MB, Zhou C, Burke NAD, Stöver HDH. Synthetic hydrogels formed by thiol-ene crosslinking of vinyl sulfone-functional poly(methyl vinyl ether-alt-maleic acid) with α,ω-dithio-polyethyleneglycol. SOFT MATTER 2018; 14:8317-8324. [PMID: 30288534 DOI: 10.1039/c8sm01066h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymer hydrogels formed by rapid thiol-ene coupling of macromolecular gel formers can offer access to versatile new matrices. This paper describes the efficient synthesis of cysteamine vinyl sulfone (CVS) trifluoroacetate, and its incorporation into poly(methyl vinyl ether-alt-maleic anhydride) (PMMAn) to form a series of CVS-functionalized poly(methyl vinyl ether-alt-maleic acid) polymers (PMM-CVSx) containing 10 to 30 mol% pendant vinyl sulfone groups. Aqueous mixtures of these PMM-CVS and a dithiol crosslinker, α,ω-dithio-polyethyleneglycol (HS-PEG-SH, Mn = 1 kDa), gelled through crosslinking by Michael addition within seconds to minutes, depending on pH, degree of functionalization, and polymer loading. Gelation efficiency, Young's modulus, equilibrium swelling and hydrolytic stability are described, and step-wise hydrogel post-functionalization with a small molecule thiol, cysteamine, was demonstrated. Cytocompatibility of these crosslinked hydrogels towards entrapped 3T3 fibroblasts was confirmed using a live/dead fluorescence assay.
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Affiliation(s)
- S A Stewart
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - M B Coulson
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - C Zhou
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - N A D Burke
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - H D H Stöver
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
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17
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Nonkumwong J, Erasquin UJ, Sy Piecco KW, Premadasa UI, Aboelenen AM, Tangonan A, Chen J, Ingram D, Srisombat L, Cimatu KLA. Successive Surface Reactions on Hydrophilic Silica for Modified Magnetic Nanoparticle Attachment Probed by Sum-Frequency Generation Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12680-12693. [PMID: 30300547 DOI: 10.1021/acs.langmuir.8b01333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Successive surface reactions on hydrophilic silica substrates were designed and performed to immobilize ethanolamine-modified magnetic ferrite-based nanoparticle (NP) for surface characterization. The various surfaces were monitored using sum-frequency generation (SFG) spectroscopy. The surface of the hydrophilic quartz substrate was first converted to a vinyl-terminated surface by utilizing a silanization reaction, and then, the surface functional groups were converted to carboxylic-terminated groups via a thiol-ene reaction. The appearance and disappearance of the vinyl (═CH2) peak at ∼2990 cm-1 in the SFG spectra were examined to confirm the success of the silanization and thiol-ene reactions, respectively. Acyl chloride (-COCl) formation from carboxy (-COOH) functional group was then performed for further attachment of magnetic amine-functionalized magnesium ferrite nanoparticles (NPs) via amide bond formation. The scattered NPs attached on the modified silica substrate was then used to study the changes in the spectral profile of the ethanolamine modifier of the NPs for in situ lead(II) (Pb2+) adsorption at the solid-liquid interface using SFG spectroscopy. However, due to the limited number of NPs attached and sensitivity of SFG spectroscopy toward expected change in the modifier spectroscopically, no significant change was observed in the SFG spectrum of the modified silica with magnetic NPs during exposure to Pb2+ solution. Nevertheless, SFG spectroscopy as a surface technique successfully monitored the modifications from a clean fused substrate to -COCl formation that was used to immobilize the decorated magnetic nanoparticles. The method developed in this study can provide a reference for many surface or interfacial studies important for selective attachment of adsorbed organic or inorganic materials or particles.
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Affiliation(s)
- Jeeranan Nonkumwong
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Uriel Joseph Erasquin
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Kurt Waldo Sy Piecco
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Uvinduni I Premadasa
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Ahmed M Aboelenen
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Andrew Tangonan
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Jixin Chen
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - David Ingram
- Department of Physics and Astronomy , Ohio University , 139 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
| | - Laongnuan Srisombat
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Katherine Leslee Asetre Cimatu
- Department of Chemistry and Biochemistry , Ohio University , 100 University Terrace, 136 Clippinger Laboratories , Athens , Ohio 45701-2979 , United States
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18
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Feng F, Chen X, Li G, Liang S, Hong Z, Wang HF. Afterglow Resonance Energy Transfer Inhibition for Fibroblast Activation Protein-α Assay. ACS Sens 2018; 3:1846-1854. [PMID: 30188115 DOI: 10.1021/acssensors.8b00680] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Traditional photoluminescence resonance energy transfer (PRET)-based sensors are widely applied, but still suffer from the severe background interference from in situ excitation. The afterglow nature of the persistent luminescence nanoparticles (PLNPs) allows optosensing after the stoppage of in situ illumination, and thus subtly overcomes that interference. We proposed a simple strategy for functionalizing PLNPs for bioanalytical applications and the new afterglow resonance energy transfer (ARET)-based assay for quantitative determination and imaging of fibroblast activation protein-alpha (FAPα) in live cells using Au-decorated Cr3+0.004:ZnGa2O4 as donor and Cy5.5-KGPNQC-SH as acceptor. The ARET between the donor and acceptor quenches the afterglow of the donor, and the cleavage of peptide KGPNQC by FAPα inhibits the ARET and restores the afterglow of the donor. The ARET-based assay of FAPα, with the linear range of 0.1-2.0 mg·L-1 (1.2-22.9 nM), LOD of 11 μg·L-1 (115 pM), and RSD of 3.9% (for 0.5 mg·L-1 FAPα, n = 5), displays higher sensitivity, lower limit of detection (LOD), and better anti-interference capability than the corresponding PRET-based assay. Besides, the ARET-based sensors are lighted up by the FAPα-positive U87MG and MDA-MB-435 cells, but kept in the dark when incubated in the FAPα-negative AD293 cells. The proposed ARET-based sensor can detect FAPα of U87MG and MDA-MB-435 living cells in human serum with the spiked recoveries of 95.6-103%. Our data demonstrated a simple and effective strategy for bridging PLNPs to bioanalytical applications, and an attractive ARET assay of FAPα.
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Affiliation(s)
- Fan Feng
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Xi Chen
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Guojie Li
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Song Liang
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Zhangyong Hong
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - He-Fang Wang
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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19
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Oćwieja M, Maciejewska-Prończuk J, Adamczyk Z, Roman M. Formation of positively charged gold nanoparticle monolayers on silica sensors. J Colloid Interface Sci 2017; 501:192-201. [DOI: 10.1016/j.jcis.2017.04.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/11/2017] [Accepted: 04/11/2017] [Indexed: 12/29/2022]
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20
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Cardoso Avila PE, Rangel Mendoza A, Pichardo Molina JL, Flores Villavicencio LL, Castruita Dominguez JP, Chilakapati MK, Sabanero Lopez M. Biological response of HeLa cells to gold nanoparticles coated with organic molecules. Toxicol In Vitro 2017; 42:114-122. [PMID: 28414162 DOI: 10.1016/j.tiv.2017.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/28/2017] [Accepted: 04/11/2017] [Indexed: 01/07/2023]
Abstract
In this work, gold nanospheres functionalized with low weight organic molecules (4-aminothiphenol and cysteamine) were synthesized in a one-step method for their in vitro cytotoxic evaluation on HeLa cells. To enhance the biocompatibility of the cysteamine-capped GNPs, BSA was used due to its broad PH stability and high binding affinity to gold nanoparticles. Besides, the widely reported silica coated gold nanorods were tested here to contrast their toxic response against our nanoparticles coated with organic molecules. Our results shown, the viability measured at 1.9×10-5M did not show significant differences against negative controls for all the samples; however, the metabolic activity of HeLa cells dropped when they were exposed to silica gold nanorods in the range of concentrations from 2.9×10-7M to 3.0×10-4M, while in the cases of gold nanospheres, we found that only at concentrations below 1.9×10-5M metabolic activity was normal. Our preliminary results did not indicate any perceivable harmful toxicity to cell membrane, cytoskeleton or nucleus due to our nanospheres at 1.9×10-5M. Additional test should be conducted in order to ensure a safe use of them for biological applications, and to determine the extent of possible damage.
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Affiliation(s)
- P E Cardoso Avila
- Centro de Investigaciones en óptica, A. C. Loma del Bosque 115, Colonia Lomas del Campestre, León, Guanajuato C.P. 37150, Mexico
| | - A Rangel Mendoza
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N Col. Noria Alta, Guanajuato, Guanajuato C.P. 36050, Mexico
| | - J L Pichardo Molina
- Centro de Investigaciones en óptica, A. C. Loma del Bosque 115, Colonia Lomas del Campestre, León, Guanajuato C.P. 37150, Mexico.
| | - L L Flores Villavicencio
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N Col. Noria Alta, Guanajuato, Guanajuato C.P. 36050, Mexico
| | - J P Castruita Dominguez
- Departamento de ecología CUCBA, Universidad de Guadalajara, Las agujas, Zapopan, Jalisco C.P. 45100, Mexico
| | - M K Chilakapati
- Advanced Centre for Treatment Research and Education in Cancer (ACTREC) Tata Memorial Centre (TMC), Sector-22, Kharghar, Navi Mumbai 410 210, India
| | - M Sabanero Lopez
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N Col. Noria Alta, Guanajuato, Guanajuato C.P. 36050, Mexico
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21
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Akhtar M, Alharthi AI, Alotaibi MA, Trendafilova N, Georgieva I, Nawaz Tahir M, Mazhar M, Isab AA, Hanif M, Ahmad S. Synthesis, X-ray structure, spectroscopic (IR, NMR) analysis and DFT modeling of a new polymeric Zinc(II) complex of cystamine, [Zn(Cym-Cym)Cl2]. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.11.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Ecofriendly syntheses of phenothiazones and related structures facilitated by laccase – a comparative study. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Raibaut L, Cargoët M, Ollivier N, Chang YM, Drobecq H, Boll E, Desmet R, Monbaliu JCM, Melnyk O. Accelerating chemoselective peptide bond formation using bis(2-selenylethyl)amido peptide selenoester surrogates. Chem Sci 2016; 7:2657-2665. [PMID: 28660038 PMCID: PMC5477010 DOI: 10.1039/c5sc03459k] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/08/2016] [Indexed: 11/21/2022] Open
Abstract
Given the potential of peptide selenoesters for protein total synthesis and the paucity of methods for the synthesis of these sensitive peptide derivatives, we sought to explore the usefulness of the bis(2-selenylethyl)amido (SeEA) group, i.e. the selenium analog of the bis(2-sulfanylethyl)amido (SEA) group, for accelerating peptide bond formation. A chemoselective exchange process operating in water was devised for converting SEA peptides into the SeEA ones. Kinetic studies show that SeEA ligation, which relies on an initial N,Se-acyl shift process, proceeds significantly faster than SEA ligation. This property enabled the design of a kinetically controlled three peptide segment assembly process based on the sequential use of SeEA and SEA ligation reactions. The method was validated by the total synthesis of hepatocyte growth factor K1 (85 AA) and biotinylated NK1 (180 AA) domains.
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Affiliation(s)
- Laurent Raibaut
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Marine Cargoët
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Nathalie Ollivier
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Yun Min Chang
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Hervé Drobecq
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Emmanuelle Boll
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Rémi Desmet
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
| | - Jean-Christophe M Monbaliu
- Center for Integrated Technology and Organic Synthesis , Department of Chemistry , University of Liège , Building B6a, Room 3/16a, Sart-Tilman , B-4000 Liège , Belgium
| | - Oleg Melnyk
- UMR CNRS 8161 CNRS , Université de Lille , Institut Pasteur de Lille , 1 rue du Pr Calmette , 59021 Lille Cedex , France .
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24
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Gentili D, Liscio F, Demitri N, Schäfer B, Borgatti F, Torelli P, Gobaut B, Panaccione G, Rossi G, Degli Esposti A, Gazzano M, Milita S, Bergenti I, Ruani G, Šalitroš I, Ruben M, Cavallini M. Surface induces different crystal structures in a room temperature switchable spin crossover compound. Dalton Trans 2016; 45:134-43. [PMID: 26575005 DOI: 10.1039/c5dt03712c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We investigated the influence of surfaces in the formation of different crystal structures of a spin crossover compound, namely [Fe(L)2] (LH: (2-(pyrazol-1-yl)-6-(1H-tetrazol-5-yl)pyridine), which is a neutral compound thermally switchable around room temperature. We observed that the surface induces the formation of two different crystal structures, which exhibit opposite spin transitions, i.e. on heating them up to the transition temperature, one polymorph switches from high spin to low spin and the second polymorph switches irreversibly from low spin to high spin. We attributed this inversion to the presence of water molecules H-bonded to the complex tetrazolyl moieties in the crystals. Thin deposits were investigated by means of polarized optical microscopy, atomic force microscopy, X-ray diffraction, X-ray absorption spectroscopy and micro Raman spectroscopy; moreover the analysis of the Raman spectra and the interpretation of spin inversion were supported by DFT calculations.
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Affiliation(s)
- Denis Gentili
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Fabiola Liscio
- Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi, (CNR-IMM) Via P. Gobetti 101, 40129 Bologna, Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza - Trieste, Italy
| | - Bernhard Schäfer
- Institute of Nanotechnology, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Denmark
| | - Francesco Borgatti
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Piero Torelli
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (CNR-IOM), Laboratorio TASC, Area Science Park, I-34149 Trieste, Italy
| | - Benoit Gobaut
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza - Trieste, Italy
| | - Giancarlo Panaccione
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (CNR-IOM), Laboratorio TASC, Area Science Park, I-34149 Trieste, Italy
| | - Giorgio Rossi
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (CNR-IOM), Laboratorio TASC, Area Science Park, I-34149 Trieste, Italy and Universita` di Milano, Dipartimento di Fisica, via Celoria 16, 20133 Milano, Italy
| | - Alessandra Degli Esposti
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF) Via P. Gobetti 101, 40129 Bologna, Italy
| | - Massimo Gazzano
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF) Via P. Gobetti 101, 40129 Bologna, Italy
| | - Silvia Milita
- Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi, (CNR-IMM) Via P. Gobetti 101, 40129 Bologna, Italy
| | - Ilaria Bergenti
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Giampiero Ruani
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Ivan Šalitroš
- Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, 81237, Slovakia
| | - Mario Ruben
- Institute of Nanotechnology, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Denmark and Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Massimiliano Cavallini
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101, 40129 Bologna, Italy.
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25
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Islam MR, Irvine J, Serpe MJ. Photothermally Induced Optical Property Changes of Poly(N-isopropylacrylamide) Microgel-Based Etalons. ACS APPLIED MATERIALS & INTERFACES 2015; 7:24370-24376. [PMID: 26501783 DOI: 10.1021/acsami.5b08532] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Poly(N-isopropylacrylamide) microgel-based optical devices were designed such that they can be stimulated to change their optical properties in response to light produced by a light-emitting diode (LED). The devices were fabricated by sandwiching the synthesized microgels between two Cr/Au layers all supported on a glass coverslip with gold nanoparticles (AuNPs) deposited. Here, we found that these devices can be stimulated to change their optical properties when exposed to green LED light, which excites the AuNPs and increases the local temperature, causing the thermoresponsive microgels to decrease in diameter, resulting in a change in the devices' optical properties. We also found that the sensitivity of the devices to light was more pronounced as the environmental temperature approached the lower critical solution temperature (LCST) for the microgels, although the sensitivity of the devices to light exposure dropped off dramatically as the environmental temperature was increased above the LCST. This was a direct result of the microgels already being in their collapsed state and therefore unable to decrease in diameter any further due to light exposure. Finally, we found that the sensitivity of the devices to light exposure increased with increasing number of AuNP layers in the devices. We anticipate that these devices could be used for drug delivery applications; by using light to stimulate microgel collapse, the microgel-based devices can be stimulated to release small molecules on demand.
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Affiliation(s)
- Molla R Islam
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Jessica Irvine
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Michael J Serpe
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
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26
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Gana I, Barrio M, Ghaddar C, Nicolaï B, Do B, Tamarit JL, Safta F, Rietveld IB. An Integrated View of the Influence of Temperature, Pressure, and Humidity on the Stability of Trimorphic Cysteamine Hydrochloride. Mol Pharm 2015; 12:2276-88. [DOI: 10.1021/mp500830n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Inès Gana
- Caractérisation
des Matériaux Moléculaires à Activité
Thérapeutique (CAMMAT), Faculté de Pharmacie, Université Paris Descartes, 4, Avenue de l’Observatoire, 75006 Paris, France
- Laboratoire
de chimie analytique, Faculté de Pharmacie, Université de Monastir, rue Ibn Sina, 5000 Monastir, Tunisie
| | - Maria Barrio
- Grup
de Caracterització de Materials (GCM), Departament de Física
i Enginyeria Nuclear, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Carine Ghaddar
- Etablissement
Pharmaceutique de l’Assistance Publique-Hôpitaux de
Paris, Agence Générale des Equipements et Produits de Santé, 7, rue du Fer à Moulin, 75005 Paris, France
| | - Béatrice Nicolaï
- Caractérisation
des Matériaux Moléculaires à Activité
Thérapeutique (CAMMAT), Faculté de Pharmacie, Université Paris Descartes, 4, Avenue de l’Observatoire, 75006 Paris, France
| | - Bernard Do
- Etablissement
Pharmaceutique de l’Assistance Publique-Hôpitaux de
Paris, Agence Générale des Equipements et Produits de Santé, 7, rue du Fer à Moulin, 75005 Paris, France
| | - Josep-Lluís Tamarit
- Grup
de Caracterització de Materials (GCM), Departament de Física
i Enginyeria Nuclear, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Fathi Safta
- Laboratoire
de chimie analytique, Faculté de Pharmacie, Université de Monastir, rue Ibn Sina, 5000 Monastir, Tunisie
| | - Ivo B. Rietveld
- Caractérisation
des Matériaux Moléculaires à Activité
Thérapeutique (CAMMAT), Faculté de Pharmacie, Université Paris Descartes, 4, Avenue de l’Observatoire, 75006 Paris, France
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Matulaitienė I, Pociūtė E, Kuodis Z, Eicher-Lorka O, Niaura G. Interaction of 4-imidazolemethanol with a copper electrode revealed by isotope-edited SERS and theoretical modeling. Phys Chem Chem Phys 2015; 17:16483-93. [PMID: 26050758 DOI: 10.1039/c5cp01290b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorption of 4-imidazolemethanol (ImMeOH) on a copper electrode has been investigated by in situ isotope-edited (H/D and (63)Cu/(65)Cu) surface enhanced Raman spectroscopy (SERS) in aqueous solutions at physiological pH (7.0) in a potential window from -0.500 to -1.100 V. Theoretical modeling by DFT calculations at the B3LYP/6-311++G(d,p) level for light atoms and LANL2DZ with ECP for copper atoms have been employed for the interpretation of experimental data. The copper surface was modeled by a cluster of 6 atoms. It was found that the imidazole ring adopts Tautomer-I form in the adsorbed state and coordinates with the Cu surface through the N3 atom. Linear potential-dependence of ν(C4=C5) mode with the slope of (15 ± 1) cm(-1) V(-1) was experimentally observed. The imidazole ring mode near 1492 cm(-1) primarily due to ν(C2-N3) + β(C2H) vibration has also showed a considerable decrease in frequency at more negative electrode potentials with the slope of (9 ± 2) cm(-1) V(-1). Both modes can be used as sensitive probes for analysis of interaction of the imidazole ring with the metal surface. In agreement with experimental data theoretical modeling has predicted higher stability of surface bound Tautomer-I compared with Tautomer-II. The formation of a covalent bond between the metal and adsorbate was experimentally evidenced by metal isotopic ((63)Cu/(65)Cu) frequency shift of ν(Cu-N) mode at 222 cm(-1), combined with theoretical modeling of the surface complex.
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Affiliation(s)
- Ieva Matulaitienė
- Department of Organic Chemistry, Center for Physical Sciences and Technology, A. Gostauto 9, Vilnius LT-01108, Lithuania.
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Jamil AK, Izake EL, Sivanesan A, Fredericks PM. Rapid detection of TNT in aqueous media by selective label free surface enhanced Raman spectroscopy. Talanta 2015; 134:732-738. [DOI: 10.1016/j.talanta.2014.12.022] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/25/2014] [Accepted: 12/18/2014] [Indexed: 12/27/2022]
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Optimized triazine-mediated amidation for efficient and controlled functionalization of hyaluronic acid. Carbohydr Polym 2015; 116:42-50. [DOI: 10.1016/j.carbpol.2014.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 03/21/2014] [Accepted: 04/08/2014] [Indexed: 11/19/2022]
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30
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Elijošiutė E, Eicher-Lorka O, Griškonis E, Matulaitienė I, Jankūnaitė D, Denafas G. Molecular structure of mercury(II) thiocyanate complexes based on DFT calculations and experimental UV-electron spectroscopy and Raman studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:574-582. [PMID: 23872016 DOI: 10.1016/j.saa.2013.06.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 06/14/2013] [Accepted: 06/19/2013] [Indexed: 06/02/2023]
Abstract
In this work, we report a combined experimental and theoretical study on molecular structure, vibrational and electronic spectra of [Hg(SCN)n](2-)(n) complexes (where n=2, 3, 4) in the aqueous solution. Molecular modeling of the mercury(II) complexes were done by the density functional theory (DFT) method using B3LYP functional with Stuttgart relativistic ECP 78MWB basis set for Hg and 6-311++G(d,p) basis set for all other atoms. The effect of different solvation models with explicit (ligand) and/or implicit water environment upon its geometry, vibrational frequencies and UV spectrum have been studied. The influence of H2O/D2O exchange on the experimental and calculated vibrational frequencies of studied complexes has been established. The double-peak character of the νHgS vibrational mode of the all analyzed mercury complexes and νCN mode of [Hg(SCN)3H2O](-) complex, respectively, were proposed here for the first time. The formation of four-coordinated Hg(II) complexes with thiocyanate and (or) water ligands was verified.
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Affiliation(s)
- Erika Elijošiutė
- Department of Environmental Engineering, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania.
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Matulaitienė I, Kuodis Z, Eicher-Lorka O, Niaura G. SERS characterization of imidazole ring terminated self-assembled monolayer formed from lipoic acid histamide on silver electrode. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.04.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fabre PL, Latapie L, Launay J, Reynes O, Temple-Boyer P. Unexpected effect of copper ions on electrochemical impedance behaviour of self-assembled alkylaminethiol monolayer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:64-6. [DOI: 10.1016/j.msec.2012.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 06/14/2012] [Accepted: 08/07/2012] [Indexed: 11/15/2022]
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Mažeikienė R, Niaura G, Eicher-Lorka O, Malinauskas A. Raman spectroelectrochemical study of Meldola blue, adsorbed and electropolymerized at a gold electrode. J Colloid Interface Sci 2011; 357:189-97. [DOI: 10.1016/j.jcis.2011.01.086] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 12/20/2010] [Accepted: 01/25/2011] [Indexed: 11/27/2022]
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34
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Thiols deposition onto the surface of glassy carbon electrodes mediated by electrical potential. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mažeikienė R, Niaura G, Malinauskas A. Raman spectroelectrochemical study of electrochemical decomposition of poly(neutral red) at a gold electrode. J Colloid Interface Sci 2009; 336:195-9. [DOI: 10.1016/j.jcis.2009.03.094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 02/04/2009] [Accepted: 03/11/2009] [Indexed: 10/20/2022]
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