1
|
Wang C, Wang X, Li C, Xu X, Ye W, Qiu G, Wang D. Silver mirror films deposited on well plates for SERS detection of multi-analytes: Aiming at 96-well technology. Talanta 2020; 222:121544. [PMID: 33167251 DOI: 10.1016/j.talanta.2020.121544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 11/15/2022]
Abstract
96-Well technology is associated with automated sample preparation and simultaneous analysis based on the low-cost well plate format. To explore the potential applications of 96-well technology in SERS detection, we examined the surface-bound electroless deposition procedure for the preparation of uniform and stable Ag mirror films on polydopamine (PDA)-coated well plates as active-SERS substrates. In the presented procedure, small Ag seeds assembled on PDA coating were employed as the surface-bound catalyst and provided the active sites for electroless Ag deposition. The high-quality Ag mirror films showed high performance in terms of sensitivity, uniformity, reproducibility and stability using rhodamine 6G (R6G) as the probe molecule. A remarkable enhancement factor of 3.41 × 108 was obtained. The relative standard deviations against well-by-well and batch-by-batch reproducibility were less than 5%. The SERS films on well plates were successfully used to quantify the amounts of organic dyes (R6G and malachite green) in environmental water samples and small biological molecules (adenosine triphosphate and adenine) in urine matrix, displaying satisfactory sensitivity, selectivity and recovery. Their limit of detection values were at nanomolar, even picomolar concentration.
Collapse
Affiliation(s)
- Changding Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Xiang Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Chen Li
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiaohui Xu
- Lanzhou Institutes for Food and Drug Control, Lanzhou, 730000, China
| | - Weichun Ye
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, 730000, China.
| | - Guoyu Qiu
- Lanzhou Institutes for Food and Drug Control, Lanzhou, 730000, China.
| | - Degui Wang
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China.
| |
Collapse
|
2
|
Cardiano P, Foti C, Giacobello F, Giuffrè O, Sammartano S. Study of Al 3+ interaction with AMP, ADP and ATP in aqueous solution. Biophys Chem 2018; 234:42-50. [PMID: 29407770 DOI: 10.1016/j.bpc.2018.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/22/2018] [Accepted: 01/22/2018] [Indexed: 12/24/2022]
Abstract
The interaction of Al3+ and nucleotide ligands, namely adenosine-5'-monophosphate, (AMP), adenosine-5'-diphosphate, (ADP), adenosine-5'-triphosphate, (ATP), has been studied in aqueous solution at T = 298.15 K and I = 0.15 mol L-1 in NaCl (only for Al3+-ATP system at I = 0.1 mol L-1). Formation constants and speciation models for the species formed are discussed on the basis of potentiometric results. The speciation models found for the three systems include ML and ML2 species in all the cases, and for Al3+-ADP and ATP systems, MLH, MLOH and ML2OH species as well. The formation constant value for ML species shows the trend, AMP < ADP < ATP. 1H NMR spectroscopy was also employed for the study of Al3+-ATP system. The 1H NMR results are in agreement with the speciation model obtained from analysis of potentiometric titration data, confirming the stabilities of the main species. Enthalpy change values were obtained by titration calorimetry; for the main Al3+-ATP species (at T = 298.15 K and I = 0.1 mol L-1 in NaCl), they resulted always higher than zero, as typical for hard-hard interactions. The dependence of formation constants on ionic strength over the range I = 0.1 to 1 mol L-1 in NaCl is also reported for Al3+-ATP system. The sequestering ability of the nucleotides under study towards Al3+ was also evaluated by the empirical parameter pL0.5.
Collapse
Affiliation(s)
- Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Fausta Giacobello
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| |
Collapse
|
3
|
Xu L, Xu Q, Guo X, Ying Y, Wu Y, Wen Y, Yang H. Facile synthesis of Au/Al 2O 3nanocomposites for improving the detection sensitivity of adenosine triphosphate. RSC Adv 2017. [DOI: 10.1039/c7ra03683c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alumina is widely recognized as chemically inert, and resistant to oxidation and high temperature.
Collapse
Affiliation(s)
- Li Xu
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Qin Xu
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Xiaoyu Guo
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Ye Ying
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Yiping Wu
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Ying Wen
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| | - Haifeng Yang
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee
- Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
| |
Collapse
|
4
|
Molecular structural investigation of adenosine using spectroscopic and quantum computational calculations. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.04.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
Tenório T, Tenório A. An integrated experimental and theoretical investigation of the vibrational modes and molecular structure of a chelate, tetraaqua cysteine aluminum(III). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:424-433. [PMID: 25528504 DOI: 10.1016/j.saa.2014.11.090] [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: 05/17/2014] [Revised: 10/22/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
The complex formed by Al(3+) and cysteine in aqueous solution has been studied by potentiometry, Raman spectroscopy and DFT calculations (DFT:B3LYP/6-311++G(∗∗)). Atomic charges, frontier molecular orbitals, electrostatic potential contour surface, electrostatic potential map and donor-acceptor second order perturbative energies were examined. The [Al(Cys)(H2O)4](2+) complex adopts a distorted octahedral geometry. Cysteine should act as a bidentate ligand through the oxygen of the carboxylate and the nitrogen of the amino group. The molecule has high HOMO-LUMO energy gap, intense intramolecular charge transfer and positive electrostatic potential.
Collapse
Affiliation(s)
- Thaís Tenório
- Department of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Edifício Cardeal Leme, 7° andar, sala 772A, 22453-900, Rio de Janeiro, RJ, Brazil.
| | - André Tenório
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Rua Senador Furtado, 121 a 125, 20270-021, Rio de Janeiro, RJ, Brazil.
| |
Collapse
|
6
|
Mujika JI, Rezabal E, Mercero JM, Ruipérez F, Costa D, Ugalde JM, Lopez X. Aluminium in biological environments: a computational approach. Comput Struct Biotechnol J 2014; 9:e201403002. [PMID: 24757505 PMCID: PMC3995234 DOI: 10.5936/csbj.201403002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 03/07/2014] [Accepted: 03/23/2014] [Indexed: 12/02/2022] Open
Abstract
The increased availability of aluminium in biological environments, due to human intervention in the last century, raises concerns on the effects that this so far “excluded from biology” metal might have on living organisms. Consequently, the bioinorganic chemistry of aluminium has emerged as a very active field of research. This review will focus on our contributions to this field, based on computational studies that can yield an understanding of the aluminum biochemistry at a molecular level. Aluminium can interact and be stabilized in biological environments by complexing with both low molecular mass chelants and high molecular mass peptides. The speciation of the metal is, nonetheless, dictated by the hydrolytic species dominant in each case and which vary according to the pH condition of the medium. In blood, citrate and serum transferrin are identified as the main low molecular mass and high molecular mass molecules interacting with aluminium. The complexation of aluminium to citrate and the subsequent changes exerted on the deprotonation pathways of its tritable groups will be discussed along with the mechanisms for the intake and release of aluminium in serum transferrin at two pH conditions, physiological neutral and endosomatic acidic. Aluminium can substitute other metals, in particular magnesium, in protein buried sites and trigger conformational disorder and alteration of the protonation states of the protein's sidechains. A detailed account of the interaction of aluminium with proteic sidechains will be given. Finally, it will be described how alumnium can exert oxidative stress by stabilizing superoxide radicals either as mononuclear aluminium or clustered in boehmite. The possibility of promotion of Fenton reaction, and production of hydroxyl radicals will also be discussed.
Collapse
Affiliation(s)
- Jon I Mujika
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain
| | - Elixabete Rezabal
- Laboratoire de Chimie Moleculaire, Department of Chemistry, Ecole Polytechnique and CNRS, 91128 Palaiseau Cedex, France
| | - Jose M Mercero
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain
| | - Fernando Ruipérez
- POLYMAT, Euskal Herriko Unibertsitatea UPV/EHU. Joxe Mari Korta zentroa, Tolosa Etorbidea 72, 20018 Donostia-San Sebastián, Euskadi, Spain
| | - Dominique Costa
- Laboratoire de Physico-Chimie des Surfaces (UMR 7045), ENSCP Chimie-Paristech, 11 rue P. et M. Curie, 75005 Paris, France
| | - Jesus M Ugalde
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain
| | - Xabier Lopez
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain
| |
Collapse
|
7
|
Tenório T, Lopes DCN, Silva AM, Ramos JM, Buarque CD. Experimental and theoretical investigation of [Al(PCr)(H2O)] complex in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:260-270. [PMID: 24051299 DOI: 10.1016/j.saa.2013.08.073] [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: 06/26/2013] [Revised: 08/10/2013] [Accepted: 08/15/2013] [Indexed: 06/02/2023]
Abstract
Phosphocreatine is a phosphorylated creatine molecule synthesized in the liver and transported to muscle cells where it is used for the temporary storage of energy. In Alzheimer's disease, the capture of glucose by cells is impaired, which negatively affects the Krebs cycle, leading to problems with the generation of phosphocreatine. Furthermore, the creatine-phosphocreatine system, regulated by creatine kinase, is affected in the brains of Alzheimer's disease patients. Aluminum ions are associated with Alzheimer's disease. Al(III) decreases cell viability and increases the fluidity of the plasma membrane, profoundly altering cell morphology. In this study, one of the complexes formed by Al(III) and phosphocreatine in aqueous solution was investigated by potentiometry, (31)P and (27)Al NMR, Raman spectroscopy and density functional theory (DFT) calculations. The log KAlPCr value was 11.37±0.03. Phosphocreatine should act as a tridentate ligand in this complex. The (27)Al NMR peak at 48.92ppm indicated a tetrahedral molecule. The fourth position in the arrangement was occupied by a coordinated water molecule. Raman spectroscopy, (31)P NMR and DFT calculations (DFT:B3LYP/6-311++G(**)) indicated that the donor atoms are oxygen in the phosphate group, the nitrogen of the guanidine group and the oxygen of the carboxylate group. Mulliken charges, NBO charges, frontier molecular orbitals, electrostatic potential contour surfaces and mapped electrostatic potential were also examined.
Collapse
Affiliation(s)
- Thaís Tenório
- Department of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Edifício Cardeal Leme, 6° andar, sala 671L, 22453-900 Rio de Janeiro, RJ, Brazil.
| | | | | | | | | |
Collapse
|
8
|
Critical evaluation of stability constants for nucleotide complexes with protons and metal ions and the accompanying enthalpy changes. PURE APPL CHEM 1991. [DOI: 10.1351/pac199163071015] [Citation(s) in RCA: 138] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|