Mild and Efficient Extraction of Fluorescent Chlorophyll a from Spinach Leaves for Application as the Sustainable Emitter in Light‐Emitting Electrochemical Cells Article Swipe
Krzysztof Kotewicz
,
Shi Tang
,
Ludvig Edman
,
Ergang Wang
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1002/celc.202300629
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1002/celc.202300629
Natural pigments are sustainable compounds that can be employed as emitters, sensors and sensitisers in optoelectronics. The most abundant pigment, chlorophyll, offers advantages of easily available and plentiful feedstock, biodegradability and non‐toxicity. However, strenuous extraction and separation limit its application on larger scale. In this work, a practically mild and scalable extraction and separation method for rapid isolation of chlorophyll a from spinach is presented. Three different stationary phases for column chromatography were evaluated, and a new solvent system was developed for the elution of chlorophyll a on a neutral alumina chromatography column. The purified product was obtained with a yield of 0.98 mg ⋅ g −1 with respect to the dry leaves. A first light‐emitting electrochemical cell (LEC) based on chlorophyll a as the emitter is reported, using the extracted chlorophyll a as the guest compound dispersed in a blend‐host matrix in a concentration of 2.5 or 5 mass %. The higher‐chlorophyll‐concentration LEC exhibits emission solely from the chlorophyll emitter, with the main emission peak located at 675 nm. The lower‐chlorophyll‐concentration LEC features two distinct emission bands, one in the red region that is originating from the chlorophyll guest and one in the blue region (main peak at 430 nm) that stems from the blend host. This combined red:blue emission can be attractive for, e. g., greenhouse applications, since it matches the action spectrum of plant photosynthesis.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1002/celc.202300629
- https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/celc.202300629
- OA Status
- gold
- Cited By
- 5
- References
- 72
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4391229564
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4391229564Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1002/celc.202300629Digital Object Identifier
- Title
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Mild and Efficient Extraction of Fluorescent Chlorophyll a from Spinach Leaves for Application as the Sustainable Emitter in Light‐Emitting Electrochemical CellsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-01-25Full publication date if available
- Authors
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Krzysztof Kotewicz, Shi Tang, Ludvig Edman, Ergang WangList of authors in order
- Landing page
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https://doi.org/10.1002/celc.202300629Publisher landing page
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/celc.202300629Direct link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/celc.202300629Direct OA link when available
- Concepts
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Chlorophyll, Spinach, Chlorophyll a, Extraction (chemistry), Chromatography, Chemistry, Common emitter, Fluorescence, Chlorophyll fluorescence, Materials science, Analytical Chemistry (journal), Nuclear chemistry, Optoelectronics, Organic chemistry, Biochemistry, Physics, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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5Total citation count in OpenAlex
- Citations by year (recent)
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2025: 5Per-year citation counts (last 5 years)
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72Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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