Search Results - "Hernik, Agnieszka"
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SERS and DFT Study of Noble-Metal-Anchored Cys-Trp/Trp-Cys Dipeptides: Influence of Main-Chain Direction and Terminal Modifications
Published in Journal of physical chemistry. C (02-04-2020)“…Tiny changes in the covalent structure of a noble-metal-anchored peptide may affect its surface-enhanced Raman scattering (SERS) signature. While SERS spectra…”
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Validation of a Modified QuEChERS Method for the Determination of Selected Organochlorine Compounds in Honey
Published in Molecules (Basel, Switzerland) (14-01-2023)“…Honey is considered to be a health-promoting food product. Therefore, it is assumed that it should be free of contaminants. Although the use of organochlorine…”
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Perfluorinated chemicals in blood serum of inhabitants in central Poland in relation to gender and age
Published in The Science of the total environment (01-11-2015)“…The goal of this paper is to determine concentrations of seven selected perfluoroalkylated substances (PFASs): perfluorooctane sulfonic acid (PFOS),…”
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Beware of Cocktails: Chain-Length Bidispersity Triggers Explosive Self-Assembly of Poly‑l‑Glutamic Acid β2‑Fibrils
Published in Biomacromolecules (11-04-2016)“…Chain-length polydispersity is among the least understood factors governing the fibrillation propensity of homopolypeptides. For monodisperse poly-l-glutamic…”
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Covalent defects restrict supramolecular self-assembly of homopolypeptides: case study of β2-fibrils of poly-L-glutamic acid
Published in PloS one (21-08-2014)“…Poly-L-glutamic acid (PLGA) often serves as a model in studies on amyloid fibrils and conformational transitions in proteins, and as a precursor for synthetic…”
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Hypomethylation of the c-myc promoter region induced by phenobarbital in rat liver
Published in Roczniki Państwowego Zakładu Higieny (2018)“…The changes in DNA methylation are considered as one of the early events in hepatocarcinogenesis. We evaluated the ability of phenobarbital (PB) – the most…”
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Effects of terminal capping on the fibrillation of short (L-Glu)n peptides
Published in Colloids and surfaces, B, Biointerfaces (01-11-2017)“…[Display omitted] •For n>3 uncapped (L-Glu)n homopeptides form amyloid-like fibrils at low pH.•Selective capping of (L-Glu)n at C- or N-termini decreases…”
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β2‑Type Amyloidlike Fibrils of Poly‑l‑glutamic Acid Convert into Long, Highly Ordered Helices upon Dissolution in Dimethyl Sulfoxide
Published in The journal of physical chemistry. B (20-12-2018)“…Replacing water with dimethyl sulfoxide (DMSO) completely reshapes the free-energy landscapes of solvated proteins. In DMSO, a powerful hydrogen-bond (HB)…”
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Alternative toxicological methods for establishing residue definitions applied for dietary risk assessment of pesticides in the European Union
Published in Food and chemical toxicology (01-03-2020)“…Consumers are constantly exposed to trace levels of residues present in food commodities, arising from the use of pesticides. For this reason, assessing the…”
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Biopesticides - towards increased consumer safety in the European Union
Published in Pest management science (01-01-2015)“…The introduction of new food safety regulations in the European Union has resulted in the withdrawal of many synthetic active substances used in plant…”
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12
Amyloidogenic Properties of Short α‑l‑Glutamic Acid Oligomers
Published in Langmuir (29-09-2015)“…Poly-l-glutamic acid (PLGA) forms amyloid-like β2-fibrils with the main spectral component of vibrational amide I′ band unusually shifted below 1600 cm–1. This…”
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Different risk assessment methodologies applied for infant's exposure for polybrominated diphenyl ethers: Implications for public health
Published in Human and ecological risk assessment (29-07-2021)“…The study aimed to determine the levels of selected polybrominated diphenyl ethers (PBDEs) in human milk and characterize the risk for breastfed infants using…”
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Covalent Defects Restrict Supramolecular Self-Assembly of Homopolypeptides: Case Study of β.sub.2-Fibrils of Poly-L-Glutamic Acid
Published in PloS one (21-08-2014)“…Poly-L-glutamic acid (PLGA) often serves as a model in studies on amyloid fibrils and conformational transitions in proteins, and as a precursor for synthetic…”
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Pregnancy serum concentrations of perfluorinated alkyl substances and offspring behaviour and motor development at age 5-9 years--a prospective study
Published in Environmental health (07-01-2015)“…In animal studies, perfluorinated alkyl substances affect growth and neuro-behavioural outcomes. Human epidemiological studies are sparse. The aim was to…”
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Polybrominated diphenyl ethers and polychlorinated biphenyls in cord blood from women in Poland
Published in Chemosphere (Oxford) (01-09-2013)“…•Selected PBDEs and PCBs have been analysed in cord blood from women resident in Warsaw.•In over 90% of all samples PCB-153, PCB-138, PCB-180 and PBDE-47 were…”
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PCDD/Fs and DL-PCBs intake from fish caught in Polish fishing grounds in the Baltic Sea — Characterizing the risk for consumers
Published in Environment international (01-06-2013)“…Fish and fishery products are among the primary sources of dietary exposure to dioxins. It is known that some fish species caught in the Baltic Sea contain…”
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Hypomethylation of the c-myc promoter region induced by phenobarbital in rat liver
Published in Roczniki Państwowego Zakładu Higieny (2018)“…The changes in DNA methylation are considered as one of the early events in hepatocarcinogenesis. We evaluated the ability of phenobarbital (PB) – the most…”
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Biopesticides - towards increased consumer safety in the European Union: Biopesticides and consumer safety
Published in Pest management science (01-01-2015)Get full text
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Hazard quotient profiles used as a risk assessment tool for PFOS and PFOA serum levels in three distinctive European populations
Published in Environment international (01-01-2015)“…Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) blood levels are commonly used as biomarkers of human environmental exposure to these…”
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