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{"title"=>"Melanin from the nitrogen-fixing bacterium Azotobacter chroococcum: A spectroscopic characterization", "type"=>"journal", "authors"=>[{"first_name"=>"Aulie", "last_name"=>"Banerjee", "scopus_author_id"=>"56097618600"}, {"first_name"=>"Subhrangshu", "last_name"=>"Supakar", "scopus_author_id"=>"55620312300"}, {"first_name"=>"Raja", "last_name"=>"Banerjee", "scopus_author_id"=>"7201904983"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"scopus"=>"2-s2.0-84897512217", "pmid"=>"24416247", "sgr"=>"84897512217", "doi"=>"10.1371/journal.pone.0084574", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "issn"=>"19326203", "pui"=>"372763053"}, "id"=>"17abb16a-2b12-3756-8721-b7ffa72b4399", "abstract"=>"Melanins, the ubiquitous hetero-polymer pigments found widely dispersed among various life forms, are usually dark brown/black in colour. Although melanins have variety of biological functions, including protection against ultraviolet radiation of sunlight and are used in medicine, cosmetics, extraction of melanin from the animal and plant kingdoms is not an easy task. Using complementary physicochemical techniques (i.e. MALDI-TOF, FTIR absorption and cross-polarization magic angle spinning solid-state (13)C NMR), we report here the characterization of melanins extracted from the nitrogen-fixing non-virulent bacterium Azotobacter chroococcum, a safe viable source. Moreover, considering dihydroxyindole moiety as the main constituent, an effort is made to propose the putative molecular structure of the melanin hetero-polymer extracted from the bacterium. Characterization of the melanin obtained from Azotobacter chroococcum would provide an inspiration in extending research activities on these hetero-polymers and their use as protective agent against UV radiation.", "link"=>"http://www.mendeley.com/research/melanin-nitrogenfixing-bacterium-azotobacter-chroococcum-spectroscopic-characterization", "reader_count"=>38, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>3, "Researcher"=>6, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>11, "Student > Postgraduate"=>2, "Student > Master"=>7, "Other"=>1, "Student > Bachelor"=>4, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>3, "Researcher"=>6, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>11, "Student > Postgraduate"=>2, "Student > Master"=>7, "Other"=>1, "Student > Bachelor"=>4, "Professor"=>1}, "reader_count_by_subject_area"=>{"Engineering"=>2, "Unspecified"=>1, "Environmental Science"=>3, "Biochemistry, Genetics and Molecular Biology"=>7, "Materials Science"=>1, "Agricultural and Biological Sciences"=>22, "Earth and Planetary Sciences"=>1, "Chemistry"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>2}, "Materials Science"=>{"Materials Science"=>1}, "Chemistry"=>{"Chemistry"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>22}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>7}, "Unspecified"=>{"Unspecified"=>1}, "Environmental Science"=>{"Environmental Science"=>3}}, "reader_count_by_country"=>{"France"=>1, "India"=>1}, "group_count"=>1}

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• http://doi.org/10.1016/j.micres.2019.02.007

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Figshare

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Relative Metric

{"start_date"=>"2014-01-01T00:00:00Z", "end_date"=>"2014-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Physical sciences", "average_usage"=>[271]}, {"subject_area"=>"/Physical sciences/Materials science", "average_usage"=>[259]}, {"subject_area"=>"/Physical sciences/Physics", "average_usage"=>[266]}]}

F1000Prime