1
|
Del Giacco T, Germani R, Lucci G, Tiecco M. Acid-base responsive probes for mercury(II) ions in aqueous solution. Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
2
|
Del Giacco T, Germani R, Purgatorio F, Tiecco M. Role of anionic micelles in self-assembling of fluorescent acridinium-based chemosensors for the detection of mercury (II) ions. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.05.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
3
|
Papouskova B, Bernard M, Ottenschlager J, Karban J, Velisek P, Hrbac J, Sykora J, Storch J, Vacek J. A comprehensive LC/MS analysis of novel cyclopentenedione library. J Pharm Biomed Anal 2016; 128:342-351. [PMID: 27328361 DOI: 10.1016/j.jpba.2016.05.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/30/2016] [Accepted: 05/31/2016] [Indexed: 01/28/2023]
Abstract
Cyclopentenediones (CPDs) are compounds with a variety of applications ranging from the preparation of functional polymers to the development of antimicrobial agents, suggesting the potential use of CPDs as novel bioactive compounds or drugs. For this reason, a detailed characterization of CPDs and the development of robust analytical methods for their trace analysis are being sought. Here we focused on the design and synthesis of a library of novelized benzylidene CPD derivatives that were consequently characterized by ultra-high performance liquid chromatography (UHPLC) on-line connected with tandem mass spectrometry (MS/MS). The library design was based on a 2-benzylidene-4-cyclopentene-1,3-dione skeleton substituted with a variety of hydroxy, methoxy, halogen, linear aliphatic, heterocyclic and saccharide moieties, primarily modulating the skeleton's hydrophobicity. The prepared CPDs were effectively ionized by positive/negative atmospheric pressure photoionization (APPI) and atmospheric pressure chemical ionization (APCI). After careful optimization of the dopant composition and flow rate, positive-mode APPI proved to be more sensitive than APCI. In negative mode, both ionization techniques gave similar results. Further, a detailed MS fragmentation study was performed, confirming the structure of the compounds and enabling positional isomers of CPDs to be differentiated on the basis of their collision spectra analysis. Finally, an optimization of the composition of the mobile phase and reversed-phased separation mode were done, followed by a selection of the most suitable UHPLC stationary phases, i.e. C18, C8 and phenyl. The applicability of the method was evaluated by the inclusion of the other two substances in the study, i.e. monomeric and dimeric bioactive CPDs, compound TX-1123 and nostotrebin 6 with cytostatic and antimicrobial activities, respectively. The results presented here could be used in further investigations of the chromatographic retention and MS behavior of CPDs, which could be utilized for their isolation, detailed characterization and analysis in biological systems.
Collapse
Affiliation(s)
- Barbora Papouskova
- Department of Analytical Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, 17 listopadu 12, Olomouc 771 46, Czech Republic
| | - Martin Bernard
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Jakub Ottenschlager
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Jindrich Karban
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Petr Velisek
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Jan Hrbac
- Department of Analytical Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, 17 listopadu 12, Olomouc 771 46, Czech Republic
| | - Jan Sykora
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Jan Storch
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135/1, Praha 165 02, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc 775 15, Czech Republic.
| |
Collapse
|
4
|
Toncelli C, Haijer A, Alberts F, Broekhuis AA, Picchioni F. The Green Route from Carbon Monoxide Fixation to Functional Polyamines: A Class of High-Performing Metal Ion Scavengers. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Toncelli
- Department
of Chemical Engineering/Institute for Technology and Management, University of Groningen, Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - A. Haijer
- Department
of Chemical Engineering/Institute for Technology and Management, University of Groningen, Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - F. Alberts
- Department
of Chemical Engineering/Institute for Technology and Management, University of Groningen, Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - A. A. Broekhuis
- Department
of Chemical Engineering/Institute for Technology and Management, University of Groningen, Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - F. Picchioni
- Department
of Chemical Engineering/Institute for Technology and Management, University of Groningen, Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| |
Collapse
|
5
|
Production of nanocrystalline cellulose from lignocellulosic biomass: technology and applications. Carbohydr Polym 2013; 94:154-69. [PMID: 23544524 DOI: 10.1016/j.carbpol.2013.01.033] [Citation(s) in RCA: 401] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 01/07/2013] [Accepted: 01/13/2013] [Indexed: 11/24/2022]
Abstract
The use of renewables materials for industrial applications is becoming impellent due to the increasing demand of alternatives to scarce and unrenewable petroleum supplies. In this regard, nanocrystalline cellulose, NCC, derived from cellulose, the most abundant biopolymer, is one of the most promising materials. NCC has unique features, interesting for the development of new materials: the abundance of the source cellulose, its renewability and environmentally benign nature, its mechanical properties and its nano-scaled dimensions open a wide range of possible properties to be discovered. One of the most promising uses of NCC is in polymer matrix nanocomposites, because it can provide a significant reinforcement. This review provides an overview on this emerging nanomaterial, focusing on extraction procedures, especially from lignocellulosic biomass, and on technological developments and applications of NCC-based materials. Challenges and future opportunities of NCC-based materials will be are discussed as well as obstacles remaining for their large use.
Collapse
|
6
|
Wang HW, Liu ZC, Chen CH, Lim TS, Fann W, Chao CG, Yu JY, Lee SL, Chen CH, Huang SL, Luh TY. Coherently Aligned Porphyrin-Appended Polynorbornenes. Chemistry 2009; 15:5719-28. [DOI: 10.1002/chem.200900195] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|