Effect of Carbon Nanotube-Metal Hybrid Particle Exposure to Freshwater Algae Chlamydomonas reinhardtii

Intrchom, Worawit; Thakkar, Megha; Hamilton, Raymond F.; Holian, Andrij; Mitra, Somenath

doi:10.1038/s41598-018-33674-7

Cited by 24 publications

(7 citation statements)

References 65 publications

(61 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous literature indicates that both pristine SWNT and COOH-SWNT are thermally stable below 600 ˚C. [20,21] Upon heating samples to this temperature and accounting for the removal of impurities such as excess solvent below 150 ˚C, we observe a 81.6% loss in mass. Based on previous literature, we attributed this mass loss to the combustion of amorphous carbon in the sample (Figure 2a).…”

Section: Improved Functionalization Density and Removal Of Amorphous ...mentioning

confidence: 68%

Polymer-Conjugated Carbon Nanotubes for Biomolecule Loading

et al. 2021

View full text Add to dashboard Cite

Nanomaterials have emerged as an invaluable tool for the delivery of biomolecules such as DNA and RNA, with various applications in genetic engineering and post-transcriptional genetic manipulation. Alongside this development, there has been an increasing use of polymer-based techniques, such as polyethyleneimine (PEI), to electrostatically load polynucleotide cargoes onto nanomaterial carriers. However, there remains a need to assess nanomaterial properties, conjugation conditions, and biocompatibility of these nanomaterial-polymer constructs, particularly for use in plant systems. In this work, we develop mechanisms to optimize DNA loading on single-walled carbon nanotubes (SWNTs) with a library of polymer-SWNT constructs and assess DNA loading ability, polydispersity, and both chemical and colloidal stability. Counterintuitively, we demonstrate that polymer hydrolysis from nanomaterial surfaces can occur depending on polymer properties and attachment chemistries, and describe mitigation strategies against construct degradation. Given the growing interest in delivery applications in plant systems, we also assess the toxicity of polymer-based nanomaterials in plants and provide recommendations for future design of nanomaterial-based polynucleotide delivery strategies.

show abstract

Section: Improved Functionalization Density and Removal Of Amorphous ...mentioning

confidence: 68%

Polymer-Conjugated Carbon Nanotubes for Biomolecule Loading

et al. 2021

View full text Add to dashboard Cite

show abstract

“…To probe the toxicity of the Au NPs on the growth of living cells [64,65] and ascertain whether Au NPs have any harmful effects on the viability of the algal cells, absorbance at 750 nm was recorded at three different concentrations (6, 50, and 100 μg mL À1 ) of AuNPs (Figure 3c). [66] In photosynthetic cells, the light-absorbing pigments absorb light a specific wavelength.…”

Section: Characterization Of Au Nps Using Uv-vis Absorption Spectroscopymentioning

confidence: 99%

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Kuruvinashetti

Pakkiriswami

Packirisamy

2021

Adv Energy and Sustain Res

View full text Add to dashboard Cite

The necessity for sustainable energy production has driven the rapid development of technologies to harness solar energy effectively. The microphotosynthetic power cells (μPSC) aim to harness solar energy from living photosynthetic cells. Currently, the power density of the μPSC is low, due to several factors. One of the major impediments and challenges of the μPSC is its lower charge transfer efficiency between the photosynthetic microorganisms and the electrodes. Herein, the proposed strategy explores the interaction of gold nanoparticles (Au NPs) with photosynthetic microorganisms for enhanced power generation from the μPSC. Herein, the intracellular biocompatible, efficient light absorbers in the form of Au NPs are introduced. Translocation of gold colloidal solution of 25 μL of 50 μg mL−1 (253.8 μmol mL−1) concentration into 2 mL whole liquid culture of algal cells (Chlamydomonas reinhardtii: ≈1 million cells mL−1) enhances operational quantum yield (ϕ0) of the algal cells by 30.2% and power generation capability by 15.2% in μPSCs. Internalized Au NPs in the algal cells quench chlorophyll fluorescence, thereby contributing to increased photosynthetic efficiency. With multiple advantages such as light absorption capability, biocompatibility, and ability to transfer the electrons, Au NPs can efficiently harvest sunlight for enhanced power generation from the μPSC.

show abstract

“…Based on anti-algae 47 and bactericidal functions 48,49 of Ag + , P-C-Ag + can effectively solve the deterioration and decomposition of ordinary photothermal materials in the practical application process, and can alleviate the pollution of water, improve the water environment. The mechanism of combined inhibition of Escherichia coli and algae is the same as previous, which mainly relies on the anti-algal and bactericidal functions of Ag + .…”

Section: Bacteriostasis and Purification Propertiesmentioning

confidence: 99%

“…The mechanism of combined inhibition of Escherichia coli and algae is the same as previous, which mainly relies on the anti-algal and bactericidal functions of Ag + . [47][48][49] In this work, we supervised the water quality change with the three samples. The P, P-Ag + and P-C-Ag + samples were put into the natural water.…”

Section: Bacteriostasis and Purification Propertiesmentioning

confidence: 99%

Multifunctional photothermal materials based on natural pumices for high efficiency solar‐driven interface evaporator

Jing

Zhou

et al. 2021

Int J Energy Res

View full text Add to dashboard Cite

The application of solar-driven interface evaporation photothermal materials in the complex water environment is facing great challenges, and the development of multifunctional photothermal materials is great significance to the practical application process. In this study, a new kind of photothermal material was first prepared based on the natural pumices, which shows great advantages of lightweight, superhydrophilicity, porous property, and heat insulation. To improve its light absorption capacity and photocatalytic effect, carbon and Ag + were uniformly loaded on pumices (named P-C-Ag + ). The as-resulted P-C-Ag + shows an evaporation rate of 1.395 kg m À2 h À1 which refers to an evaporation efficiency of 88.80% in simulated seawater under 1 kW m À2 illumination. In the rooftop experiment, the cumulative evaporation capacity of the simulated solar evaporator with P-C-Ag + in 8 hours can reach about 7.25 kg m À2 . Meanwhile, almost no salt crystallization was found in the surface of P-C-Ag + during the continuous evaporation process. The P-C-Ag + has a good inhibitory effect on Escherichia coli and algae, and can degrade color dyes, which is also beneficial to water environment, thus holding great potential as multifunctional photothermal material for solar steam generation and water treatment.

show abstract

Effect of Carbon Nanotube-Metal Hybrid Particle Exposure to Freshwater Algae Chlamydomonas reinhardtii

Cited by 24 publications

References 65 publications

Polymer-Conjugated Carbon Nanotubes for Biomolecule Loading

Polymer-Conjugated Carbon Nanotubes for Biomolecule Loading

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Multifunctional photothermal materials based on natural pumices for high efficiency solar‐driven interface evaporator

Contact Info

Product

Resources

About