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Forsíða

Forsíða

Martha Ásdís Hjálmarsdóttir - Professor Emerita

Martha Ásdís Hjálmarsdóttir

–

Martha Ásdís Hjálmarsdóttir

Professor Emerita

Professor, Head of Department of Biomedical Science

Location
Stapi
Phone
525 - 4898
Email
hjalmars [at] hi.is

Unit
Faculty of Medicine

Professional Experience

- , Executive Officer/Preisdent, IFBLS (The International Federation of Biomedical Science
2019 - , Professor, Head of Department, Department of Biomedical Science, SHS, University of Iceland
1973 - , Biomedical scientist/instructor, Department of Clinical Microbiology, Landspitali university hospital
2018 - 2019, Associate professor, Head of Department, Department of Biomedical Science, SHS, University of Iceland
2006 - 2018, Associate professor, Head of Department, Department of Biomedical Science, SHS, University of Iceland
1991 - 2006, Associate professor/Head of Department, Tækniskóli Íslands/Technical University of Iceland/ Reykjavik University
1996 - 1998, President, Association of Academics
1988 - 1993, President, Association of Biomedical Scientists

Published works

2024

Conjugation of CRAMP_18–35 Peptide to Chitosan and Hydroxypropyl Chitosan via Copper-Catalyzed Azide–Alkyne Cycloaddition and Investigation of Antibacterial ActivityInternational Journal of Molecular Sciences
Water-Soluble Quaternary and Protonable Basic ChitotriazolansJournal of Functional Biomaterials

2023

Water-soluble chitotriazolans derived from cationic, neutral, and anionic common chitosan derivativesEuropean Polymer Journal

2022

Antibacterial properties of poly (N,N-dimethylaminoethyl methacrylate) obtained at different initiator concentrations in solution polymerizationRoyal Society Open Science
Chitosan-hydroxycinnamic acid conjugatesCarbohydrate Polymers

2021

Chitotriazolan (poly(β(1-4)-2-(1H-1,2,3-triazol-1-yl)-2-deoxy-d-glucose)) derivatives: Synthesis, characterization, and evaluation of antibacterial activityCarbohydrate Polymers
Chitotriazolan (poly(β(1-4)-2-(1H-1,2,3-triazol-1-yl)-2-deoxy-D-glucose)) derivativesCarbohydrate Polymers

2020

Reduction of antimicrobial resistant pneumococci seven years after introduction of pneumococcal vaccine in IcelandPLoS ONE
Selective synthesis of N,N,N-trimethylated chitosan derivatives at different degree of substitution and investigation of structure-activity relationship for activity against P. aeruginosa and MRSAInternational Journal of Biological Macromolecules
The antibacterial structure-activity relationship for common chitosan derivativesInternational Journal of Biological Macromolecules

2019

The Effect of Molecular Weight on the Antibacterial Activity of N,N,N-Trimethyl Chitosan (TMC)International Journal of Molecular Sciences
The Effect of the 10-Valent Pneumococcal Nontypeable Haemophilus influenzae Protein D Conjugate Vaccine on H. influenzae in Healthy Carriers and Middle Ear Infections in IcelandJournal of Clinical Microbiology

2018

Effect of Vaccination on Pneumococci Isolated from the Nasopharynx of Healthy Children and the Middle Ear of Children with Otitis Media in IcelandJournal of Clinical Microbiology
Vaccination of icelandic children with the 10-valent pneumococcal vaccine leads to a significant herd effect among adults in IcelandJournal of Clinical Microbiology

2017

Comparison of Serotype Prevalence of Pneumococci Isolated from Middle Ear, Lower Respiratory Tract and Invasive Disease Prior to Vaccination in IcelandPLoS ONE
N,N,N-trimethyl chitosan as an efficient antibacterial agent for polypropylene and polylactide nonwovensJournal of the Textile Institute

2016

The epidemiology of penicillin non-susceptible pneumococci in Iceland
Antimicrobial properties of chitosan and chitosan derivatives
Cocolonization of Pneumococcal Serotypes in Healthy Children Attending Day Care CentersPediatric Infectious Disease Journal
Topical Formulation Comprising Fatty Acid Extract from Cod Liver Oil: Development, Evaluation and Stability StudiesMarine Drugs
Experimental design for determining quantitative structure activity relationship for antibacterial chitosan derivativesJournal of Materials Chemistry B

2015

Impact of chain length on antibacterial activity and hemocompatibility of quaternary N-alkyl and N, N-dialkyl chitosan derivativesBiomacromolecules
Prevalence of pilus genes in pneumococci isolated from healthy preschool children in IcelandJournal of Antimicrobial Chemotherapy
Antimicrobial peptide shows enhanced activity and reduced toxicity upon grafting to chitosan polymersChemical Communications
Synthesis of guanidinylated chitosan with the aid of multiple protecting groups and investigation of antibacterial activityCarbohydrate Polymers

2014

Epidemiology of penicillin-non-susceptible pneumococci in Iceland, 1995-2010Journal of Antimicrobial Chemotherapy
The effect of substituent, degree of acetylation and positioning of the cationic charge on the antibacterial activity of quaternary chitosan derivativesMarine Drugs

2010

Antibacterial activity of N-quaternary chitosan derivativesEuropean Polymer Journal

2008

Antimicrobial activity of piperazine derivatives of chitosanCarbohydrate Polymers

2007

Antibacterial activity of methylated chitosan and chitooligomer derivativesEuropean Polymer Journal

2006

Antimicrobial activity of chitosan N-betainatesCarbohydrate Polymers

2003

Soft antimicrobial agentsJournal of Medicinal Chemistry

1997

In vitro susceptibility of Helicobacter pylori to protolichesterinic acid from the lichen Cetraria islandicaAntimicrobial Agents and Chemotherapy

1992

Increasing penicillin resistance in pneumococci in IcelandThe Lancet

Keywords for Specialisation:

Microbial resistance

Activity testings of antimicrobials and possible substrates - methodology