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Chinta SR, Chintala V, Nandimalla V, Ch R, Ediga SG, Kowtharapu LP, Katari NK. Quantification of Drospirenone- and Ethinyl Estradiol-Related Impurities in a Combined Pharmaceutical Dosage Form by a Chromatography Method With a QbD Robustness Study. J AOAC Int 2024; 107:31-39. [PMID: 37758265 DOI: 10.1093/jaoacint/qsad118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/29/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND The estimation of drugs containing drospirenone (DRSP) and ethinyl estradiol (EE), and their related impurities, in low-dose oral contraceptive drug products is an extremely challenging target. The proposed research sought to develop and validate a stability-indicating method for quantifying drug substances and their related impurities in tablet formulation. OBJECTIVE To develop and validate a simple, specific, accurate, precise, and stability-indicating reverse-phase (RP)-HPLC method for quantification of DRSP, EE, and their impurities in accordance with International Conference on Harmonisation (ICH) guidelines. METHOD The separation was achieved using an Agilent Zorbax SB C18 column (4.6 mm × 250 mm, 5 µm) with a detection wavelength of 215 nm and mobile phases A (100% acetonitrile) and B (acetonitrile-water, 1 + 3, v/v) at a flow rate of 1.3 mL/min and a column temperature of 40°C. RESULTS The recovery study of each impurity was conducted in the range of 24 to 72 µg/mL for DRSP-related impurities and 0.2 to 0.6 µg/mL for EE-related impurities with respect to the specification limit. A linearity study was conducted over a range of 1.5 to 90 µg/mL for DRSP and DRSP-related impurities, and 0.125 to 0.75 µg/mL for EE-related impurities. A Quality by Design (QbD) study demonstrated the method's robustness. CONCLUSIONS As per current guidelines, a stability-indicating method has been developed for the determination of impurities in DRSP/EE film-coated tablets. A QbD-based robustness test was performed and the method was found to be robust. HIGHLIGHTS An accurate, precise, stability-indicating, gradient RP-HPLC method has been developed and validated to determine DRSP, EE, and nine related impurities in tablet formulation. A QbD technique was used to establish a robustness study.
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Affiliation(s)
- Srinivasa Reddy Chinta
- Novast Laboratories Ltd, Department of Quality Operations, Guangxing Rd, Free Trade Zone, NETDA, Nantong 226009, China
- GITAM School of Science, GITAM Deemed to be University, Department of Chemistry, Hyderabad, Telangana 502329, India
| | - Vaishnavi Chintala
- Analytical Research and Development, Cambrex Highpoint, 4170 Mendenhall Oaks Pkwy, High Point, NC 27265, USA
| | - Vishnu Nandimalla
- GITAM School of Science, GITAM Deemed to be University, Department of Chemistry, Hyderabad, Telangana 502329, India
| | - Rajyalakshmi Ch
- Vishnu Institute of Technology, Department of Basic Science, Bhimavaram-534202, Andhra Pradesh, India
| | - Sasikiran Goud Ediga
- Novast Laboratories Ltd, Department of Quality Operations, Guangxing Rd, Free Trade Zone, NETDA, Nantong 226009, China
| | - Leela Prasad Kowtharapu
- GITAM School of Science, GITAM Deemed to be University, Department of Chemistry, Hyderabad, Telangana 502329, India
| | - Naresh Kumar Katari
- GITAM School of Science, GITAM Deemed to be University, Department of Chemistry, Hyderabad, Telangana 502329, India
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Aviezer Y, Lahav O. Removal of contaminants of emerging concern from secondary-effluent reverse osmosis retentates by continuous supercritical water oxidation- parametric study and conceptual design. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129379. [PMID: 35752047 DOI: 10.1016/j.jhazmat.2022.129379] [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: 04/13/2022] [Revised: 05/20/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
The continuous removal of TOC and the degradation efficiency of carbamazepine and 17β-estradiol were investigated using actual secondary municipal-effluent RO-retentate solutions. A specific set of operating parameters were applied within the supercritical water oxidizing conditions: temperature range 420-480 °C, 25.1 MPa, hydraulic retention time (HRT) of 1-2 min, excess oxidant molar-ratio of 3-10 and presence of a homogenous catalyst (IPA) at 50-100 mg/L. > 99% organic carbon mineralization, along with complete degradation of model pollutants, was observed at 450 °C/1 min/OC= 5-10 and 100 mgIPA/L. The outlet estrone concentration, 1.03 ± 1.14 ng/L, representing estrogenic pollutants, dropped to the "no effect" range. A model for a SCWO plant treating secondary-municipal-effluent-RO-retentate for a city of 100,000 capita-equivalent was developed, based on a shell & tube SCWO flow reactor, showing > 75% energy-efficiency. The model yielded that for the extreme case of a zero caloric-value feed-solution, the total OPEX and CAPEX would be < $6.0 ± 2.5 per m3 of secondary effluents, i.e., two orders of magnitude lower than the reported environmental shadow-price associated with CECs (contaminants of emerging concern). Further work is required on the continuous and efficient separation of the salt-matrix, which can lead to higher overall heat transfer coefficients and enable further reduction in capital costs.
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Affiliation(s)
- Yaron Aviezer
- Faculty of Civil and Environmental Engineering, Technion, Haifa 32000, Israel.
| | - Ori Lahav
- Faculty of Civil and Environmental Engineering, Technion, Haifa 32000, Israel.
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Aviezer Y, Lahav O. Determining the kinetic constants leading to mineralization of dilute carbamazepine and estradiol-containing solutions under continuous supercritical water oxidation conditions. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126797. [PMID: 34399220 DOI: 10.1016/j.jhazmat.2021.126797] [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: 04/21/2021] [Revised: 07/07/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Continuous subcritical and supercritical water oxidation experiments were conducted on dilute carbamazepine- and estradiol-containing synthetic solutions used to simulate the removal of model emerging pollutants from secondary municipal effluents. The operating conditions comprised 340-500 °C, retention time of 24-453 s and a stoichiometric oxidant ratio (O.C.) between 4 and 64. The transformation of the various species was determined at the outlet and by modeling a segmented non-isothermal reaction system. Four empirical power law kinetic models were established to represent both the pollutants' degradation and TOC removal efficiencies, using nonlinear multiple regression coupled with bootstrapping and K-fold cross-validation. The mineralization and degradation models for both pollutants yielded a R2 of 67-80.5% vs. the experimental results. Discussion on the various model assumptions revealed that attributing full model deviations to the constant oxygen concentration or to the laminar reactor flow, yielded a deviation of 6% and 15% in the removal efficiencies, respectively. However, the expected deviation of the models was lower than 0.32% at conditions leading to (almost) full mineralization (45-60 s, 480-500 °C and O.C.s of 5-10). The methodologies developed in the study are useful for interpreting future results obtained from SCWO of actual secondary effluent solutions.
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Affiliation(s)
- Yaron Aviezer
- Faculty of Civil and Environmental Engineering, Technion, Haifa 32000, Israel.
| | - Ori Lahav
- Faculty of Civil and Environmental Engineering, Technion, Haifa 32000, Israel.
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Chinta SR, Ponnam V, Katari NK, Ediga SG, Marisetti VM. Novel reversed-phase HPLC method for simultaneous determination of ethynodiol diacetate (EDA)/ethinyl estradiol (EE) in pharmaceutical dosage form. Biomed Chromatogr 2020; 35:e5055. [PMID: 33368394 DOI: 10.1002/bmc.5055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/06/2020] [Accepted: 12/15/2020] [Indexed: 11/07/2022]
Abstract
Ethynodiol diacetate (EDA) and ethinyl estradiol (EE) tablets are indicated to prevent pregnancy in women who use oral contraceptives as a contraception method. EDA and EE were separated by reversed-phase HPLC using Agilent ZORBAX SB-Phenyl column, 4.6 mm × 15 cm, 5 μm, using a gradient mixture of acetonitrile and Milli-Q water as mobile phase. The linearity and recovery were found in the range of 0.025-0.25 mg/mL and 0.05-0.18 mg/mL for EDA and 0.001-0.01 mg/mL and 0.002-0.007 mg/mL for EE, respectively. The method is validated according to the regulatory guidelines concerning system suitability, specificity, repeatability, recovery, linearity, robustness, and stability of the sample solution.
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Affiliation(s)
- Srinivasa Reddy Chinta
- Department of Quality Operations, Novast Laboratories Ltd, Nantong, Jiangsu Province, China
| | - Vijetha Ponnam
- Department of Chemical Engineering, Vignan's Foundation for Science, Technology and Research University, Guntur, Andhra Pradesh, India
| | - Naresh Kumar Katari
- Department of Chemistry, School of Science, GITAM Deemed to be University, Hyderabad, Telangana, India
| | - Sasikiran Goud Ediga
- Department of Quality Operations, Novast Laboratories Ltd, Nantong, Jiangsu Province, China
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Phosphorescent palladium-tetrabenzoporphyrin indicators for immunosensing of small molecules with a novel optical device. Talanta 2020; 224:121927. [PMID: 33379126 DOI: 10.1016/j.talanta.2020.121927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022]
Abstract
Small-molecule detection is important for many applications including clinical diagnostics, drug discovery, environmental screening, and food technology. Current techniques suffer from various limitations including cost, complex sample processing, massive instrumentation, and need for expertise. To overcome these limitations, a new optical immunosensing assay for the detection of small molecules was developed and assessed with the targets estrone (E1) and estradiol (E2). For this purpose, phosphorescent indicators were designed based on the tetrabenzoporphyrin skeleton directly linked to E1 or E2, or attached through a linker, with phosphorescence lifetimes in the range of ~100-~300 μs. The assay is an indicator displacement assay (IDA). The best performances of our optical immunosensor were obtained with the indicators E1-L-Por and E2-L-Por. As they bound to specific polyclonal antibodies, their phosphorescence (τ ~200 μs) was quenched. When an endogenous competitor was added, the indicator was displaced, and the phosphorescence was immediately recovered. These effects were measured with a new optical device, described here, and able to detect picograms of luminescent molecules emitting in the NIR range, simply by measuring phosphorescence decay. This radical switch-off/switch on process demonstrates that E1-L-Por and E2-L-Por are good candidates for in vivo and in vitro immunosensing of E1 and E2. Importantly, the present immunosensing assay can be easily adapted to other small molecules such as other hormones and drugs.
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Nunes da Silva D, Leijoto de Oliveira H, Borges KB, Pereira AC. Sensitive Determination of 17β‐Estradiol using a Magneto Sensor Based on Magnetic Molecularly Imprinted Polymer. ELECTROANAL 2020. [DOI: 10.1002/elan.202060223] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniela Nunes da Silva
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Hanna Leijoto de Oliveira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Arnaldo César Pereira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
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In situ decomposition of deep eutectic solvent as a novel approach in liquid-liquid microextraction. Anal Chim Acta 2019; 1065:49-55. [DOI: 10.1016/j.aca.2019.03.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/11/2019] [Accepted: 03/17/2019] [Indexed: 12/13/2022]
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8
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Yu W, Du B, Yang L, Zhang Z, Yang C, Yuan S, Zhang M. Occurrence, sorption, and transformation of free and conjugated natural steroid estrogens in the environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9443-9468. [PMID: 30758794 DOI: 10.1007/s11356-019-04402-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/25/2019] [Indexed: 05/06/2023]
Abstract
Natural steroid estrogens (NSEs), including free estrogens (FEs) and conjugated estrogens (CEs), are of emerging concern globally among public and scientific community due to their recognized adverse effects on human and wildlife endocrine systems in recent years. In this review, the properties, occurrence, sorption process, and transformation pathways of NSEs are clarified in the environment. The work comprehensively summarizes the occurrence of both free and conjugated estrogens in different natural and built environments (e.g., river, WWTPs, CAFOs, soil, and sediment). The sorption process of NSEs can be impacted by organic compounds, colloids, composition of clay minerals, specific surface area (SSA), cation exchange capacity (CEC), and pH value. The degradation and transformation of free and conjugated estrogens in the environment primarily involves oxidation, reduction, deconjugation, and esterification reactions. Elaboration about the major, subordinate, and minor transformation pathways of both biotic and abiotic processes among NSEs is highlighted. The moiety types and binding sites also would affect deconjugation degree and preferential transformation pathways of CEs. Notably, some intermediate products of NSEs still remain estrogenic potency during transformation process; the elimination of total estrogenic activity needs to be addressed in further studies. The in-depth researches regarding the behavior of both free and conjugated estrogens are further required to tackle their contamination problem in the ecosystem. Graphical abstract ᅟ.
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Affiliation(s)
- Weiwei Yu
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, School of River and Ocean Engineering, Chongqing Jiaotong University, No.66 Xuefu Rd., Nan'an Dist, Chongqing, 400074, China
| | - Banghao Du
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, School of River and Ocean Engineering, Chongqing Jiaotong University, No.66 Xuefu Rd., Nan'an Dist, Chongqing, 400074, China.
| | - Lun Yang
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, School of River and Ocean Engineering, Chongqing Jiaotong University, No.66 Xuefu Rd., Nan'an Dist, Chongqing, 400074, China
| | - Zhi Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environments of the Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Chun Yang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environments of the Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Shaochun Yuan
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, School of River and Ocean Engineering, Chongqing Jiaotong University, No.66 Xuefu Rd., Nan'an Dist, Chongqing, 400074, China
| | - Minne Zhang
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, School of River and Ocean Engineering, Chongqing Jiaotong University, No.66 Xuefu Rd., Nan'an Dist, Chongqing, 400074, China
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Rather JA, Khudaish EA, Kannan P. Graphene-amplified femtosensitive aptasensing of estradiol, an endocrine disruptor. Analyst 2019; 143:1835-1845. [PMID: 29623326 DOI: 10.1039/c7an02092a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We report the construction of a novel electrochemical femtomolar aptasensing APT-ERGO/GCE interface based on the covalent immobilization of 38-mer amine-functionalized (NH2-APT) 17β-estradiol (E2) DNA aptamers on a graphene amplifying platform. Graphene oxide (GO) was synthesized and characterized by using FTIR, UV-vis spectroscopy, XRD spectroscopy, and SEM technique. The strategy for the construction of the E2-aptasensing interface involves in a three-step modification process. (i) First, we carried out the electrochemical reduction of GO on the GCE electrode to form ERGO/GCE. (ii) Then, as an impact strategy, the E2-aptamers (NH2-APT) were further immobilized on the surface of the ERGO/GCE interface through electrochemical reduction of surface-functionalized diazonium salts. This step includes electrografting of ERGO/GCE by electrochemical reduction of the diazonium salt (ClN2+-Ph-COOH) to obtain the ERGO/GCE-Ph-COOH-modified electrode. (iii) Finally, the free carboxyl groups on the ERGO/GCE-Ph-COOH surface were conjugated with NH2-APT through formation of carbodiimide to afford an aptasensing APT-ERGO/GCE interface. The presence of ERGO as an amplifying platform led to the successful immobilization of E2-aptamers with a surface coverage of 1.9 × 1013 molecule per cm2, which is higher than the values obtained in other reported methods. The constructed aptasensing APT-ERGO/GCE interface was appraised using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The synergetic effect of high affinity and specificity of E2-aptamers and graphene platform was beneficial for the novel femtosensitive label-free electrochemical aptasensing APT-ERGO/GCE interface for the detection of [E2]. The oxidation current peaks at the aptasensing APT-ERGO/GCE interface were proportional to [E2] over two different concentration linearity ranges 1.0 × 10-15 mol L-1-9.0 × 10-12 mol L-1-1.2 × 10-11 mol L-1 to 2.3 × 10-10 mol L-1 with a limit of detection (LOD) of 0.5 × 10-15 mol L-1. This aptasensing APT-ERGO/GCE interface was employed as a femtomolar tool for the determination of [E2] in the environmental and pharmaceutical samples such as wastewater (spiked) and pharmaceutical dosages.
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Ma L, Yates SR. Degradation and metabolite formation of estrogen conjugates in an agricultural soil. J Pharm Biomed Anal 2017; 145:634-640. [DOI: 10.1016/j.jpba.2017.07.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/11/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
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Barbero M, Santos D, Takada L, de Camargo G, Freitas A, Diaz I, de Souza F, Tonhati H, Albuquerque L, Oliveira H. Prospecting polymorphisms in the PPP3CA and FABP4 genes and their association with early pregnancy probability in Nellore heifers. Livest Sci 2017. [DOI: 10.1016/j.livsci.2017.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Krishnaiah YSR, Pavurala N, Yang Y, Manda P, Katragadda U, Yang Y, Shah R, Fang G, Khan MA. In Vitro Drug Transfer Due to Drug Retention in Human Epidermis Pretreated with Application of Marketed Estradiol Transdermal Systems. AAPS PharmSciTech 2017; 18:2131-2140. [PMID: 28028793 DOI: 10.1208/s12249-016-0694-9] [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: 10/26/2016] [Accepted: 12/12/2016] [Indexed: 11/30/2022] Open
Abstract
Study objective was to assess skin-to-skin drug transfer potential that may occur due to drug retention in human epidermis (DRE) pretreated with application of estradiol transdermal drug delivery systems (TDDS) and other estradiol transdermal dosage forms (gels and sprays). TDDS (products-A, B, and C) with varying formulation design and composition, and other estradiol transdermal products (gel and spray) were applied to heat separated human epidermis (HSE) and subjected to in vitro drug permeation study. Amounts of DRE were quantified after 24 h. The DRE with product-B was significantly (P < 0.001) higher than that with product-C, product-A, gel, and spray. However, products-A and C, gel, and spray showed almost the same (P > 0.05) amounts of DRE. A separate in vitro permeation study was carried out to determine amounts of drug transferred from drug-retaining epidermis to untreated HSE. The amounts of drug transferred, due to DRE after 8 h, with product-C were significantly (P < 0.001) higher than those with products-A and B, gel, and spray. The in vitro study results indicate a high potential of skin-to-skin drug transfer due to the DRE after labeled period of using estradiol TDDS, though the clinical relevance of these findings is yet to be determined.
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Yilmaz B, Kadioglu Y. Determination of 17 β-estradiol in pharmaceutical preparation by UV spectrophotometry and high performance liquid chromatography methods. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.04.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abdallah IA, Hammell DC, Hassan HE, Stinchcomb AL. Norelgestromin/ethinyl estradiol intravenous infusion formulation optimization, stability and compatibility testing: A case study to overcome polysorbate 80 interference in chromatographic analysis. J Pharm Biomed Anal 2016; 125:145-53. [DOI: 10.1016/j.jpba.2016.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/07/2016] [Accepted: 03/10/2016] [Indexed: 11/26/2022]
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Dołowy M, Pyka-Pająk A. Comparison of the limits of detection and quantification of estradiol hemihydrate determined by thin-layer chromatography using different chromatographic conditions. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1163180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Małgorzata Dołowy
- Department of Analytical Chemistry, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, Poland
| | - Alina Pyka-Pająk
- Department of Analytical Chemistry, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, Poland
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Development and validation of in vitro–in vivo correlation ( IVIVC ) for estradiol transdermal drug delivery systems. J Control Release 2015; 210:58-66. [DOI: 10.1016/j.jconrel.2015.05.263] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/03/2015] [Accepted: 05/09/2015] [Indexed: 11/22/2022]
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17
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Sensitive determination of 17β-estradiol in river water using a graphene based electrochemical sensor. Anal Chim Acta 2015; 881:37-43. [DOI: 10.1016/j.aca.2015.04.043] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 04/13/2015] [Accepted: 04/22/2015] [Indexed: 11/20/2022]
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Han B, Zhang M, Zhao D, Feng Y. Degradation of aqueous and soil-sorbed estradiol using a new class of stabilized manganese oxide nanoparticles. WATER RESEARCH 2015; 70:288-299. [PMID: 25543239 DOI: 10.1016/j.watres.2014.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/05/2014] [Accepted: 12/08/2014] [Indexed: 06/04/2023]
Abstract
Manganese oxide (MnO₂) was reported to be effective for degrading aqueous pharmaceutical chemicals. However, little is known about its potential use for degrading soil-sorbed contaminants. To bridge this knowledge gap, we synthesized, for the first time, a class of stabilized MnO₂ nanoparticles using carboxymethyl celluloses (CMC) as a stabilizer, and tested their effectiveness for degrading aqueous and soil-sorbed estradiol. The most desired particles (highest reactivity and soil deliverability) were obtained at a CMC/MnO₂ molar ratio of 1.39 × 10(-3), which yielded a mean hydrodynamic size of 39.5 nm and a narrow size distribution (SD = 0.8 nm). While non-stabilized MnO₂ particles rapidly aggregated and were not transportable through a soil column, CMC-stabilized nanoparticles remained fully dispersed in water and were soil deliverable. At typical aquatic pH (6-7), CMC-stabilized MnO₂ exhibited faster degradation kinetics for oxidation of 17β-estradiol than non-stabilized MnO₂. The reactivity advantage becomes more evident when used for treating soil-sorbed estradiol owing to the ability of CMC to complex with metal ions and prevent the reactive sites from binding with inhibitive soil components. A retarded first-order rate model was able to interpret the oxidation kinetics for CMC-stabilized MnO₂. When used for degrading soil-sorbed estradiol, several factors may inhibit the oxidation effectiveness, including desorption rate, soil-MnO₂ interactions, and soil-released metals and reductants. CMC-stabilized MnO₂ nanoparticles hold the potential for facilitating in situ oxidative degradation of various emerging contaminants in soil and groundwater.
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Affiliation(s)
- Bing Han
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA
| | - Man Zhang
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA
| | - Dongye Zhao
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Yucheng Feng
- Department of Agronomy and Soils, Auburn University, Auburn, AL 36849, USA
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Wei S, Li J, Liu Y. Colourimetric assay for β-estradiol based on the peroxidase-like activity of Fe3O4@mSiO2@HP-β-CD nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra20695b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic illustration of the colourimetric detection of β-E2 by using a Fe3O4@mSiO2@HP-β-CD nanoparticle catalyzed color reaction.
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Affiliation(s)
- Shoulian Wei
- Faculty of Chemistry and Chemical Engineering
- Zhaoqing University
- Zhaoqing
- China
| | - Jianwen Li
- Department of Chinese Medicine and Biology
- Guangdong Food and Drug Vocational College
- Guangzhou 510520
- China
| | - Yong Liu
- Faculty of Chemistry and Chemical Engineering
- Zhaoqing University
- Zhaoqing
- China
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Krishnaiah YS, Yang Y, Hunt RL, Khan MA. Cold flow of estradiol transdermal systems: Influence of drug loss on the in vitro flux and drug transfer across human epidermis. Int J Pharm 2014; 477:73-80. [DOI: 10.1016/j.ijpharm.2014.10.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/04/2014] [Accepted: 10/07/2014] [Indexed: 11/30/2022]
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21
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Nováková L, Chocholouš P, Solich P. Ultra-fast separation of estrogen steroids using subcritical fluid chromatography on sub-2-micron particles. Talanta 2014; 121:178-86. [DOI: 10.1016/j.talanta.2013.12.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/19/2013] [Accepted: 12/24/2013] [Indexed: 11/29/2022]
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22
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Cincotto FH, Moraes FC, Machado SAS. Graphene Nanosheets and Quantum Dots: A Smart Material for Electrochemical Applications. Chemistry 2014; 20:4746-53. [DOI: 10.1002/chem.201304853] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 01/09/2014] [Indexed: 11/07/2022]
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23
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Yilmaz B, Kadioglu Y. QUANTITATION OF 17 β-ESTRADIOL IN RABBIT PLASMA BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH FLUORESCENCE DETECTION. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.685912] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Bilal Yilmaz
- a Department of Analytical Chemistry, Faculty of Pharmacy , Ataturk University , Erzurum , Turkey
| | - Yucel Kadioglu
- a Department of Analytical Chemistry, Faculty of Pharmacy , Ataturk University , Erzurum , Turkey
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24
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Qin H, Li B, Liu MS, Yang YL. Separation and pre-concentration of glucocorticoids in water samples by ionic liquid supported vortex-assisted synergic microextraction and HPLC determination. J Sep Sci 2013; 36:1463-9. [DOI: 10.1002/jssc.201200989] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 12/25/2012] [Accepted: 01/30/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Qin
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming; China
| | - Bi Li
- College of Science; Kunming University of Science and Technology; Kunming; China
| | - Mou Sheng Liu
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming; China
| | - Ya Ling Yang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming; China
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25
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Electrochemical immunosensor for rapid and sensitive determination of estradiol. Anal Chim Acta 2012; 743:117-24. [DOI: 10.1016/j.aca.2012.07.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 06/28/2012] [Accepted: 07/02/2012] [Indexed: 11/20/2022]
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26
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Bocian S, Soukup J, Matyska M, Pesek J, Jandera P, Buszewski B. The influence of the organic modifier in hydro-organic mobile phase on separation selectivity of steroid hormones separation using cholesterol-bonded stationary phases. J Chromatogr A 2012; 1245:90-7. [DOI: 10.1016/j.chroma.2012.05.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 04/26/2012] [Accepted: 05/01/2012] [Indexed: 10/28/2022]
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27
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Wang L, Yuan F, Chen HQ, Ling B, Xu J. Chemiluminescence of CdTe nanocrystals catalyzed by sodium hexametaphosphate and its sensitive application for determination of estrogens. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 91:295-300. [PMID: 22387679 DOI: 10.1016/j.saa.2012.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Revised: 01/30/2012] [Accepted: 02/03/2012] [Indexed: 05/31/2023]
Abstract
A novel flow injection nanocrystals (NCs) chemiluminescence (CL) analysis method has been established for the determination of estradiol, estriol and estrone based on the enhancement of CdTe NCs-KMnO(4) CL reaction catalyzed by sodium hexametaphosphate. Glutathione (GSH)-capped CdTe nanocrystals were synthesized in aqueous medium, and the CdTe NCs emitted at around 555 nm was selected as the light emitter in CdTe NCs-KMnO(4) chemiluminescence (CL) system. It has been found that sodium hexametaphosphate (SHMP) enhanced the CL of the CdTe NCs-KMnO(4) system and estrogens increased these CL signals again in near neutral solution. UV-visible spectra, photoluminescence (PL) spectra, transmission electron microscopy (TEM) and CL spectra were used to characterize CdTe nanoparticles and investigate the mechanism of the CL reaction. On the basis of the enhancement, a novel flow-injection CL method has been established for the determination of estrogens. Under the optimum experimental conditions, three linear relationships were obtained. The method described is simple, sensitive, and has been successfully utilized for the determination of estrogens in tap water samples.
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Affiliation(s)
- Lun Wang
- Anhui Key Laboratory of Chemo-Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China.
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28
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Hu Y, Fan Y, Li G. Preparation and evaluation of a porous monolithic capillary column for microextraction of estrogens from urine and milk samples online coupled to high-performance liquid chromatography. J Chromatogr A 2012; 1228:205-12. [DOI: 10.1016/j.chroma.2011.08.057] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 08/01/2011] [Accepted: 08/13/2011] [Indexed: 11/24/2022]
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29
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Advances in the analysis of steroid hormone drugs in pharmaceuticals and environmental samples (2004–2010). J Pharm Biomed Anal 2011; 55:728-43. [DOI: 10.1016/j.jpba.2010.11.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Revised: 11/09/2010] [Accepted: 11/09/2010] [Indexed: 12/31/2022]
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30
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Wang S, Li Y, Wu X, Ding M, Yuan L, Wang R, Wen T, Zhang J, Chen L, Zhou X, Li F. Construction of uniformly sized pseudo template imprinted polymers coupled with HPLC-UV for the selective extraction and determination of trace estrogens in chicken tissue samples. JOURNAL OF HAZARDOUS MATERIALS 2011; 186:1513-1519. [PMID: 21195544 DOI: 10.1016/j.jhazmat.2010.12.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2010] [Revised: 12/07/2010] [Accepted: 12/07/2010] [Indexed: 05/30/2023]
Abstract
To assess the potential risks associated with the environmental exposure of steroid estrogens, a novel highly efficient and selective estrogen enrichment procedure based on the use of molecularly imprinted polymer has been developed and evaluated. Herein, analogue of estrogens, namely 17-ethyl estradiol (EE(2)) was used as the pseudo template, to avoid the leakage of a trace amount of the target analytes. The resulting pseudo molecularly imprinted polymers (PMIPs) showed large sorption capacity, high recognition ability and fast binding kinetics for estrogens. Moreover, using these imprinted particles as dispersive solid-phase extraction (DSPE) materials, the amounts of three estrogens (E(1), E(2) and E(3)) which were detected by HPLC-UV from the chicken tissue samples were 0.28, 0.31 and 0.17 μg g(-1), and the recoveries were 72.5-78.7%, 90.3-95.2% and 80.5-83.6% in spiked chicken tissue samples with RSD <7%, respectively. All these results reveal that EE(2)-PMIPs as DSPE materials coupled with HPLC-UV could be applied to the highly selective separation and sensitive determination of trace estrogens in chicken tissue samples.
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Affiliation(s)
- Shu Wang
- School of Pharmacy, Nanjing Medical University, Hanzhong Road 140, Nanjing 210029, PR China.
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31
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Electrocatalytic oxidation and determination of estradiol using an electrode modified with carbon nanotubes and an ionic liquid. Mikrochim Acta 2009. [DOI: 10.1007/s00604-009-0163-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Simultaneous analysis of 17α-estradiol and 17β-estradiol in bovine serum by liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 871:135-40. [DOI: 10.1016/j.jchromb.2008.06.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Revised: 06/23/2008] [Accepted: 06/27/2008] [Indexed: 11/23/2022]
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33
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Song J, Yang J, Hu X. Electrochemical determination of estradiol using a poly(l-serine) film-modified electrode. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9520-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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34
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Studies on Enhanced Oxidation of Estrone and Its Voltammetric Determination at Carbon Paste Electrode in the Presence of Cetyltrimethylammonium Bromide. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.10.1729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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