1
|
Madbouly H, El-Hefny N, El-Nadi Y. Adsorption and separation of terbium(III) and gadolinium(III) from aqueous nitrate medium using solid extractant. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2018.1563614] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- H.A. Madbouly
- Hot Laboratories Centre, Atomic Energy Authority, Qalyubia, Egypt
| | - N.E. El-Hefny
- Hot Laboratories Centre, Atomic Energy Authority, Qalyubia, Egypt
| | - Y.A. El-Nadi
- Hot Laboratories Centre, Atomic Energy Authority, Qalyubia, Egypt
| |
Collapse
|
2
|
|
3
|
Tarley CRT, Corazza MZ, Somera BF, Segatelli MG. Preparation of new ion-selective cross-linked poly(vinylimidazole-co-ethylene glycol dimethacrylate) using a double-imprinting process for the preconcentration of Pb²⁺ ions. J Colloid Interface Sci 2015; 450:254-263. [PMID: 25823729 DOI: 10.1016/j.jcis.2015.02.074] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/11/2015] [Accepted: 02/28/2015] [Indexed: 10/23/2022]
Abstract
A new ion-selective cross-linked poly(vinylimidazole-co-ethylene glycol dimethacrylate) prepared via a double-imprinting process was developed for the recognition and preconcentration of Pb(2+) from water samples. The sorbent was characterized by FT-IR, SEM, TGA and textural data. The maximum dynamic sorption capacity of Pb(2+) was 42.04 mg Pb(2+) g(-1) of the double-imprinted polymer. The sorption kinetics data were described by a pseudo-second-order model. The double-imprinted polymer exhibited a higher sorption efficiency of Pb(2+) than the blank polymer (non-imprinted polymer). The preconcentration procedure involved the loading of a Pb(2+) solution at pH 7.25 through 40.0 mg of the double-imprinted polymer packed in a mini-column at 5.0 mL min(-1). The selective efficiency of proposed method for the Pb(2+) preconcentration was assured by competitive sorption using different proportions of Pb(2+)/cations and Pb(2+)/anions. An analytical curve was obtained in the range 0.0-300.0 μg L(-1) (r=0.999) and a limit of detection of 2.46 μg L(-1) was obtained. The preconcentration factor was found to be 21, the consumptive index 0.95 mL and the concentration efficiency 5.25 min(-1). The preconcentration method was successfully applied to the Pb(2+) ions determination in different kinds of water samples with high recovery values (91.3-108.9%).
Collapse
Affiliation(s)
- César Ricardo Teixeira Tarley
- Universidade Estadual de Londrina (UEL), Departamento de Química, Centro de Ciências Exatas, Rodovia Celso Garcia Cid, PR 445, km 380, Londrina, PR 86050-482, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) de Bioanalítica, Universidade Estadual de Campinas (UNICAMP), Instituto de Química, Departamento de Química Analítica, Cidade Universitária Zeferino Vaz, s/n, Campinas, SP 13083-970, Brazil.
| | - Marcela Zanetti Corazza
- Universidade Estadual de Londrina (UEL), Departamento de Química, Centro de Ciências Exatas, Rodovia Celso Garcia Cid, PR 445, km 380, Londrina, PR 86050-482, Brazil
| | - Bruna Fabrin Somera
- Universidade Estadual de Londrina (UEL), Departamento de Química, Centro de Ciências Exatas, Rodovia Celso Garcia Cid, PR 445, km 380, Londrina, PR 86050-482, Brazil
| | - Mariana Gava Segatelli
- Universidade Estadual de Londrina (UEL), Departamento de Química, Centro de Ciências Exatas, Rodovia Celso Garcia Cid, PR 445, km 380, Londrina, PR 86050-482, Brazil
| |
Collapse
|
4
|
Luoa G, Li Y, Wang A, Lin Q, Zhang G, Wang C. Dummy molecularly imprinted mesoporous silicates for selective adsorption of 2-naphthol. OPEN CHEM 2015. [DOI: 10.1515/chem-2015-0090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractDummy molecularly imprinted mesoporous silicates (MIMS-2) were made by co-condensation of tetraethyl orthosilicate (TEOS) with precursors of bi-functional mimic of 2-naphthol, 2,7-dihydroxynaphthalene, around triblock copolymer surfactant Pluronic (P123) micelles. The bi-functional template was linked to two functional monomers through thermally cleavable covalent bonds to generate imprint precursor. This provides the possibility of incorporating the target into the cross-linked mesoporous silicate matrix in the non-ionic surfactant templated sol-gel process. P123 was eluted by ethanol extraction and template molecules were removed by refluxing the materials in a mixture of dimethyl sulfoxide (DMSO) and water. MIMS-1 was prepared similarly except that 2-naphthol was used as template instead of 2,7-dihydroxynaphthalene. Solid phase extraction studies showed that MIMS-2 exhibited good retention and selectivity for 2-naphthol among its structural analogues. The mono-functional molecule 2-naphthol was unable to be incorporated into the silica matrix of mesoporous material by the identical method, and the resulting material MIMS-1 exhibits poor selectivity to the template analogues.
Collapse
|
5
|
Germiniano TO, Corazza MZ, Segatelli MG, Ribeiro ES, Yabe MJS, Galunin E, Tarley CRT. Synthesis of novel copper ion-selective material based on hierarchically imprinted cross-linked poly(acrylamide-co-ethylene glycol dimethacrylate). REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
6
|
Lofgreen JE, Ozin GA. Controlling morphology and porosity to improve performance of molecularly imprinted sol–gel silica. Chem Soc Rev 2014; 43:911-33. [DOI: 10.1039/c3cs60276a] [Citation(s) in RCA: 261] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
7
|
Diniz KM, Segatelli MG, Tarley CRT. Synthesis and adsorption studies of novel hybrid mesoporous copolymer functionalized with protoporphyrin for batch and on-line solid-phase extraction of Cd2+ ions. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.03.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
8
|
Lofgreen JE, Moudrakovski IL, Ozin GA. Molecularly imprinted mesoporous organosilica. ACS NANO 2011; 5:2277-2287. [PMID: 21323322 DOI: 10.1021/nn1035697] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We have prepared molecularly imprinted mesoporous organosilica (MIMO) using a semicovalent imprinting technique. A thermally reversible covalent bond was used to link a bisphenol A (BPA) imprint molecule to a functional alkoxysilane monomer at two points to generate a covalently bound imprint precursor. This precursor was incorporated into a cross-linked periodic mesoporous silica matrix via a typical acid-catalyzed, triblock copolymer-templated, sol-gel synthesis. Evidence of imprint sites buried in the pore walls was found through careful characterization of the imprinted material and its comparison to similarly prepared non-imprinted mesoporous organosilica (NIMO) and pure periodic mesoporous silica (PMS). After thermal treatment, the imprinted material (MIMO-ir) removed more than 90% of appropriately sized bisphenol species from water, yet showed significantly lower binding for both smaller and larger molecules containing phenol moieties. Identically treated NIMO-ir showed much poorer retention behavior than MIMO-ir for the same bisphenol species and behaved only slightly better than PMS-ir.
Collapse
Affiliation(s)
- Jennifer E Lofgreen
- Department of Chemistry, University of Toronto, Toronto, Ontario M6S 3H6, Canada
| | | | | |
Collapse
|
9
|
Özkütük EB, Özalp E, Ersöz A, Açıkkalp E, Say R. Thiocyanate separation by imprinted polymeric systems. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0319-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
10
|
Arrachart G, Carcel C, Trens P, Moreau JJE, Wong Chi Man M. Silylated melamine and cyanuric acid as precursors for imprinted and hybrid silica materials with molecular recognition properties. Chemistry 2009; 15:6279-88. [PMID: 19440996 DOI: 10.1002/chem.200900278] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two monotrialkoxysilylated compounds that consist of complementary fragments of melamine (M) and cyanuric acid (CA) have been synthesised. The molecular recognition properties of the M and CA fragments through complementary hydrogen bonds (DAD and ADA; D=donor, A=acceptor) are the key factor used to direct the formation of hybrid silica materials by using a sol-gel process. These materials were synthesised following two methods: First, an organo-bridged silsesquioxane was obtained by the hydrolysis of the two complementary monotrialkoxysilylated melamine and cyanuric acid derivatives, with fluoride ions as a catalyst. The hydrogen-bonding interactions between the two organic fragments are responsible for the formation of the bridging unit. The transcription of the assembly into the hybrid material was characterised and evidenced by solid-state NMR (29Si, 13C) and FTIR spectroscopic experiments. Second, the molecular recognition was exploited to synthesise an imprinted hybrid silica. This material was prepared by co-condensation of tetraethyl orthosilicate (TEOS) with the monosilylated cyanuric acid derivative (CA) templated by nonsilylated melamine. The melamine template was completely removed by treating the solid material with hydrochloric acid. The reintroduction of the template was performed by treating the resulting material with an aqueous suspension of melamine. These steps were monitored and analysed by several techniques, such as solid-state NMR (29Si, 13C) and FTIR spectroscopic analysis and nitrogen adsorption-desorption isotherms.
Collapse
Affiliation(s)
- Guilhem Arrachart
- Architectures Moléculaires et Matériaux Nanostructurés, ICG Montpellier (UMR 5253) UMII-CNRS-ENSCM-UMI, 8 rue de l'école normale, 34296 Montpellier, France
| | | | | | | | | |
Collapse
|
11
|
Zhai Y, Liu Y, Chang X, Ruan X, Liu J. Metal ion-small molecule complex imprinted polymer membranes: Preparation and separation characteristics. REACT FUNCT POLYM 2008. [DOI: 10.1016/j.reactfunctpolym.2007.08.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Rao TP, Prasad K, Kala R, Gladis JM. Biomimetic Sensors for Toxic Pesticides and Inorganics based on Optoelectronic/Electrochemical Transducers—An Overview. Crit Rev Anal Chem 2007. [DOI: 10.1080/10408340701244664] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T. Prasada Rao
- a Regional Research Laboratory (CSIR) , Trivandrum , India
| | - K. Prasad
- a Regional Research Laboratory (CSIR) , Trivandrum , India
| | - R. Kala
- a Regional Research Laboratory (CSIR) , Trivandrum , India
| | - J. Mary Gladis
- a Regional Research Laboratory (CSIR) , Trivandrum , India
| |
Collapse
|
13
|
Bi X, Lau RJ, Yang KL. Preparation of ion-imprinted silica gels functionalized with glycine, diglycine, and triglycine and their adsorption properties for copper ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:8079-86. [PMID: 17567056 DOI: 10.1021/la7008072] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
We report a new procedure for modifying the surface of silica gels with glycine, diglycine, and triglycine in the presence of copper ions to create a new type of copper-imprinted sorbent, which exhibits a high adsorption capacity and selectivity for copper ions. Our results show that copper adsorbed onto the copper-imprinted silica gel is 50% higher than that on nonimprinted silica gel at pH 4.5. The high adsorption capacity observed for the copper-imprinted silica gel is attributed to the stable copper complexes formed with two adjacent glycine, diglycine, or triglycine molecules with proper intermolecular distances obtained from the ion-imprinting procedure. Another possible reason for the high adsorption capacity is that the ion-imprinting procedure prevents the surface from being overcrowded; therefore, copper ions can form very stable 1:1 complexes with immobilized diglycine or triglycine. Interestingly, the imprinting effect is even more pronounced when the adsorption experiments are conducted in the presence of competing metal ions such as magnesium and calcium. The copper-imprinted silica gel exhibits a higher adsorption capacity than does the nonimprinted silica gel for all pH values, even when the concentrations of magnesium and calcium are 50 and 76 times higher than the concentration of copper.
Collapse
Affiliation(s)
- Xinyan Bi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | | | | |
Collapse
|
14
|
Lee K, Itharaju R, Puleo D. Protein-imprinted polysiloxane scaffolds. Acta Biomater 2007; 3:515-22. [PMID: 17363350 PMCID: PMC1950241 DOI: 10.1016/j.actbio.2007.01.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2006] [Revised: 12/20/2006] [Accepted: 01/10/2007] [Indexed: 11/16/2022]
Abstract
Molecular imprinting is a technique used to create specific recognition sites on the surface of materials. Although widely developed for chromatographic separation of small molecules, this approach has not been adequately investigated for biomaterial applications. Thus, the objective of these experiments was to explore the potential of molecular imprinting for creating biomaterials that preferentially bind specific proteins. Macroporous polysiloxane (silica) scaffolds were imprinted with either lysozyme or RNase A using sol-gel processing. The quantity of surface-accessible protein, which was related to the number of potential binding sites, was varied by changing the amount of protein loaded into the sol. Up to 62% of loaded protein was accessible. The amount of protein per unit surface area ranged from 0.3microgm(-2) for low loading of RNase to 152microgm(-2) for high loading of lysozyme. Protein-imprinted scaffolds were then evaluated for their ability to preferentially recognize the template biomolecule when incubated in mixtures containing both the imprinted protein and a competitor protein of comparable size (approximately 14kD). In solutions containing a single protein, up to 3.6 times more template bound compared with the competitor. Furthermore, in solutions containing equal amounts of both molecules, the porous scaffolds bound up to three times more template than the competitor protein, which is a level of preferential binding similar to values reported in the molecular imprinting literature for both organic and inorganic materials.
Collapse
Affiliation(s)
- K. Lee
- Center for Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - R.R. Itharaju
- Center for Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - D.A. Puleo
- Center for Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| |
Collapse
|
15
|
Fa HB, Zhao L, Wang XQ, Yu JH, Huang YB, Yang M, Wang DJ. Chiral Recognition of Mesoporous SBA-15 with an Incorporated Chiral Porphyrin. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600438] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
16
|
Rao TP, Kala R, Daniel S. Metal ion-imprinted polymers—Novel materials for selective recognition of inorganics. Anal Chim Acta 2006; 578:105-16. [PMID: 17723701 DOI: 10.1016/j.aca.2006.06.065] [Citation(s) in RCA: 227] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2006] [Revised: 06/17/2006] [Accepted: 06/24/2006] [Indexed: 11/24/2022]
Abstract
Ion-imprinted polymers (IIPs) are recently identified nano-porous polymeric materials which on leaching the imprint ion can rebind, sense or transport (when cast as membranes) selectively the target analyte in presence of closely related inorganic ions. The IIPs find interesting applications in solid phase extraction, sensors and membrane separations of inorganics. Unlike the molecularly imprinted polymers, the IIP field is in its infancy and has been briefly reviewed here along with some rough guidelines and concepts for further development of IIPs.
Collapse
Affiliation(s)
- T Prasada Rao
- Chemical Sciences Division, Regional Research Laboratory (CSIR), Trivandrum 695019, India.
| | | | | |
Collapse
|
17
|
|
18
|
Alexander C, Andersson HS, Andersson LI, Ansell RJ, Kirsch N, Nicholls IA, O'Mahony J, Whitcombe MJ. Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003. J Mol Recognit 2006; 19:106-80. [PMID: 16395662 DOI: 10.1002/jmr.760] [Citation(s) in RCA: 776] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Over 1450 references to original papers, reviews and monographs have herein been collected to document the development of molecular imprinting science and technology from the serendipitous discovery of Polyakov in 1931 to recent attempts to implement and understand the principles underlying the technique and its use in a range of application areas. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by papers dealing with fundamental aspects of molecular imprinting and the development of novel polymer formats. Thereafter, literature describing attempts to apply these polymeric materials to a range of application areas is presented.
Collapse
Affiliation(s)
- Cameron Alexander
- The School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Striegler S. Designing selective sites in templated polymers utilizing coordinative bonds. J Chromatogr B Analyt Technol Biomed Life Sci 2004; 804:183-95. [PMID: 15093172 DOI: 10.1016/j.jchromb.2004.01.065] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This review gives a survey over recent achievements on the design of selective sites in templated polymers. Particularly, coordinative bonds as driving force for the interaction between a substrate and a templated polymer are discussed. Recent achievements on the selective recognition of larger molecules, such as dipeptides and disaccharides, are highlighted that promise a fast development on biomolecule templated material towards enzyme-like catalysis in the up-coming years. Additionally, the achievements on the incorporation of catalytic centers based on transition metal complexes are summarized.
Collapse
Affiliation(s)
- Susanne Striegler
- Division of Inorganic Chemistry II, University of Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany.
| |
Collapse
|
20
|
Alexander C, Davidson L, Hayes W. Imprinted polymers: artificial molecular recognition materials with applications in synthesis and catalysis. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00152-2] [Citation(s) in RCA: 141] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
21
|
Zhang Z, Dai S. Preparation and characterization of novel inorganic-organic mesoscopic ordered composites with bridges formed by coordination compounds. J Am Chem Soc 2001; 123:9204-5. [PMID: 11552846 DOI: 10.1021/ja0158556] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Z Zhang
- Chemical Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | |
Collapse
|