A nanostructured cell-free photosynthetic biocomposite via molecularly controlled layer-by-layer assembly

Shon, Yuran; Kim, Hyun; Hwang, Hong Seop; Bae, Eun Sil; Eom, Taesik; Park, Eui Jung; Ahn, Wha‐Seung; Wie, Jeong Jae; Shim, Bong Sup

doi:10.1016/j.snb.2016.12.120

Cited by 18 publications

(8 citation statements)

References 68 publications

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“…Despite a relatively low output in the current density, the approach using direct electron transfer (DET)-based wiring photobioelements to the electrode could offer several advantages including simplification of the cell design, minimization of the overpotential loss, avoiding instability arising from leakage of the mediator, and a potentially high Coulombic efficiency . Immobilization of TMs to enable DET, such as direct adsorption onto a graphite surface, , immobilization in the presence of carbon quantum dots, noncovalent or covalent binding, layer-by-layer assembly, electroplating, or electrospinning methods, has been recently attempted to construct PBAs and PBCs.…”

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confidence: 99%

Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance

et al. 2017

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Integrating photosynthetic cell components with nanostructured materials can facilitate the conversion of solar energy into electric power for creating sustainable carbon-neutral energy sources. With the aim at exploring efficient photoinduced biocatalytic energy conversion systems, we have used an amidated carbon nanotube (aCNT) networked matrix to integrate thylakoid membranes (TMs) for construction of a direct electron transfer-driven biosolar cell. We have evaluated the resulting photobioelectrochemical cells systematically. Compared to the carboxylated CNT (cCNT)-TMs system, the aCNT-TMs system enabled a 1.5-fold enhancement in photocurrent density. This system offers more advantages including a reduced charge-transfer resistance, a lower open-circuit potential, and an improved cell stability. More remarkably, the average power density of the optimized cells was 250 times higher than that of reported analogue systems. Our results suggest the significance of physical and electronic interactions between the photosynthetic components and the support nanomaterials and may offer new clues for designing improved biosolar cells.

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mentioning

confidence: 99%

Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance

et al. 2017

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“…In any case, enhanced steady consideration remains the foundation of treatment and the clinical viability for the resulting specialists is as yet under scrutiny or in clinical trials. Most standing, clinical and preclinical information on antiviral treatment is taken from different Viruses, including SARS-CoV-1 [48] , Middle East Respiratory Syndrome², and non-coronaviruses (Ebola) [65] .An affirmed patient of COVID-19 needs total bed rest and steady treatment, guaranteeing satisfactory calorie and water admission to lessen the danger of lack of hydration. Water electrolyte parity and homeostasis need to keep up alongside the checking of indispensable signs and oxygen immersion; keeping respiratory lot unhampered and breathing in oxygen in more extreme cases; estimating blood tally, C-reactive protein, pee test, and other blood biochemical records including liver and kidney work, myocardial catalyst range, and coagulation work as per patient's conditions.…”

Section: Treatment Methodology Of Covid-19mentioning

confidence: 99%

Nanoparticles as an effective drug delivery system in COVID-19

Chowdhury¹,

Deepika²,

Choudhury³

et al. 2021

Biomedicine & Pharmacotherapy

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Background The global healthcare sector has been dealing with a situation known as a novel severe acute respiratory syndrome (SARS-CoV-2) since the end of 2019. Covid-19 is an acronym for Covid-19 (Coronavirus Disease- 2019). It causes a respiratory infection that includes cold, sneezing and coughing, and pneumonia. In the case of an animal, it causes diarrhea and upper respiratory diseases. Covid-19 transmitted human to human via airborne droplets. First Covid-19 emerged in Wuhan market China and it spread rapidly throughout the World. As we know nanoparticles are a novel drug delivery system. They have various advantageous effects like increasing the efficacy of the drug, safety, etc. In this review, we study about the nanoparticles and summarize how it is effective during drug delivery system in Covid-19. Chitosan is a much focused biopolymeric nanoparticle. It delivers drugs to the specific target site. In a recent health crisis, chitosan nanoparticles are one of the ways to release drugs of Covid-19, and specifically in the lungs of the affected patients. We studied and extracted our data from various research papers, review papers, and some other articles. Objective The main goal is to study the nanoparticles and their future aspects which is an effective drug delivery system in Covid-19. Methods The bibliographic search was done through a systematic search. The terms “Nanoparticles”, “Covid-19 ”, “Drug delivery” etc. were used to search the databases/search engines like “Google Scholar”, “NCBI”, “PubMed”, “Science Direct” etc. These databases and search engines used here perform the limited criteria of search to conduct a systematic literature survey for the study and report writing. All the text from the articles and research papers were studied and analyzed. The various articles and research papers were used in writing this report and all of which are mentioned in the reference section of this report. Conclusion Our current studies reveal that nanoparticles may prove very helpful in the delivery of drugs for Covid-19 treatment. Many cases showed that patients, where drugs are delivered with the help of nanoparticles, produced very few side effects.

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“…In another study, the photosynthetic proteins isolated from the reaction centers of Rhodobacter sphaeroides were assembled in combination with poly(diallyldimethylammonium chloride) [163], where linear film growth was observed up to about 20 absorption cycles. During assembly, the increase in packaging density of thylakoids is an important factor in enhancing stability and functional durability of the assembled films [164], which could be achieved through better control of the molecular charge distribution of the thylakoids in combination with an insulating polymer (e.g., polyethyleneimine PEI), or conducting polymer (e.g., polyaniline PANI) [165]: as such, the times for continuous generation of photosynthetic energy were prolonged and photobleaching processes were decelerated in LbL films compared to random arrangements. After multiple deposit cycles (Figure 12), the photo-active function of the thylakoids can be maintained within the artificially assembled structures due to an excellent balance of the charged layers in the assembly.…”

Section: Mimicking Nature For Artificial Photosynthesis Platformsmentioning

confidence: 99%

Role of Nanocellulose in Light Harvesting and Artificial Photosynthesis

et al. 2023

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Artificial photosynthesis has rapidly developed as an actual field of research, mimicking natural photosynthesis processes in plants or bacteria to produce energy or high-value chemicals. The nanocelluloses are a family of biorenewable materials that can be engineered into nanostructures with favorable properties to serve as a host matrix for encapsulation of photoreactive moieties or cells. In this review, the production of different nanocellulose structures such as films, hydrogels, membranes, and foams together with their specific properties to function as photosynthetic devices are described. In particular, the nanocellulose’s water affinity, high surface area and porosity, mechanical stability in aqueous environment, and barrier properties can be tuned by appropriate processing. From a more fundamental viewpoint, the optical properties (transparency and haze) and interaction of light with nanofibrous structures can be further optimized to enhance light harvesting, e.g., by functionalization or appropriate surface texturing. After reviewing the basic principles of natural photosynthesis and photon interactions, it is described how they can be transferred into nanocellulose structures serving as a platform for immobilization of photoreactive moieties. Using photoreactive centers, the isolated reactive protein complexes can be applied in artificial bio-hybrid nanocellulose systems through self-assembly, or metal nanoparticles, metal-organic frameworks, and quantum dots can be integrated in nanocellulose composites. Alternatively, the immobilization of algae or cyanobacteria in nanopaper coatings or a porous nanocellulose matrix allows to design photosynthetic cell factories and advanced artificial leaves. The remaining challenges in upscaling and improving photosynthesis efficiency are finally addressed in order to establish a breakthrough in utilization of nanocellulose for artificial photosynthesis.

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A nanostructured cell-free photosynthetic biocomposite via molecularly controlled layer-by-layer assembly

Cited by 18 publications

References 68 publications

Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance

Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance

Nanoparticles as an effective drug delivery system in COVID-19

Role of Nanocellulose in Light Harvesting and Artificial Photosynthesis

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