Two-dimensional ultrathin nanosheets of Ni–In-layered double hydroxides prepared in water: enhanced performance for DNA adsorption

Wang, Yongjuan; Zhou, Yuming; Zhang, Tao; He, Min; Bu, Xiaohai

doi:10.1039/c3ra47728b

Cited by 20 publications

(10 citation statements)

References 39 publications

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“…These observations are in good agreement with atomic force microscopy results, 29,30 which revealed the existence of LDH nanosheets of an average height prole 1.2-2 nm. Considering this, we can assume the LDH layer on the surface of QD@silica nanospheres corresponds to only a few (two to three) unilamellar nanosheets.…”

Section: Resultssupporting

confidence: 91%

“…A uniform layer of approximately 2.5 -3 nm LDH nanosheets was deposited on the surface of the QD@silica nanospheres, as indicated by the electron microscopy images Figure 1. These observations are in good agreement with atomic force microscopy results, 28,29 which revealed the existence of LDH nanosheets of an average height profile 1.2-2 nm. Considering this, we can assume the LDH layer on the surface of QD@silica nanospheres corresponds to only a few (two to three) unilamellar nanosheets.…”

Section: Introductionsupporting

confidence: 81%

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Increasing cell viability using Cd-free – InP/ZnS@silica@layered double hydroxide – materials for biological labeling

2016

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In this work we describe the synthesis and characterization of InP/ZnS@silica@LDH nanoparticles and, moreover, their use as biomarkers. The use of dual systems combining silica shells and hydrotalcite nanocoatings favors the cell viability in clear contrast with the system with only silica shells. Furthermore, the use of Cd-free luminophores extends the cells lifetime and illustrates the potential of the InP/ZnS@silica@LDH material as biomarker.

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Section: Resultssupporting

confidence: 91%

Section: Introductionsupporting

confidence: 81%

Increasing cell viability using Cd-free – InP/ZnS@silica@layered double hydroxide – materials for biological labeling

2016

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“…Compared with unexfoliated LDHs, the delaminated unilamellar LDH nanosheets with positive charges exhibited an enhanced ability to adsorb DNA [22]. The LDH nanosheets MgAl-lactate-NS exhibited a much higher DNA adsorption capacity than that of MgAl-acetate-NS, which suggested that the adsorption capacity of LDH nanosheets was also related to interlaminar anions [11].…”

Section: Discussionmentioning

confidence: 97%

Optimized synthesis of layered double hydroxide lactate nanosheets and their biological effects on Arabidopsis seedlings

Zhang

et al. 2022

Plant Methods

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Background Layered double hydroxide lactate nanosheets (LDH-lactate-NS) are powerful carriers for delivering macro-molecules into intact plant cells. In the past few years, some studies have been carried out on DNA/RNA transformation and plant disease resistance, but little attention has been paid to these factors during LDH-lactate-NS synthesis and delamination, nor has their relationship to the DNA adsorption capacity or transformation efficiency of plant cells been considered. Results Since the temperature during delamination alters particle sizes and zeta potentials of LDH-lactate-NS products, we compared the LDH-lactate-NS stability, DNA adsorption rate and delivery efficiency of fluorescein isothiocyanate isomer I (FITC) of them, found that the LDH-lactate-NS obtained at 25 °C has the best characters for delivering biomolecules into plant cell. To understand the potential side effects and cytotoxicity of LDH-lactate-NS to plants, we compared the root growth rate between the Arabidopsis thaliana seedlings grown in the culture medium with 1–300 μg/mL LDH-lactate-NS and equivalent raw material, Mg(lactate)2 and Al (lactate)3. Phenotypic analysis showed LDH in a range of 1–300 μg/mL can enhance the root elongation, whereas the same concentration of raw materials dramatically inhibited root elongation, suggesting the nanocrystallization has a dramatical de-toxic effect to Mg(lactate)2 and Al (lactate)3. Since enhancing of root elongation by LDH is an unexpected phenomenon, we further designed experiments to investigate influence of LDH to Arabidopsis seedlings. We further used the gravitropic bending test, qRT-PCR analysis of auxin transport proteins, non-invasive micro-test technology and liquid chromatography-mass spectrometry to investigate the auxin transport and distribution in Arabidopsis root. Results indicated that LDH-lactate-NS affect root growth by increasing the polar auxin transport. Conclusions Optimal synthesized LDH-lactate-NS can delivery biomolecules into intact plant cells with high efficiency and low cytotoxity. The working solution of LDH-lactate-NS can promote root elongation via increase the polar auxin transport in Arabidopsis roots.

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“…In 2015, Hara et al prepared C 3 H 7 COO–NiZn-LDH and found that it had catalytic activity and selectivity . Many studies showed that acetate also could be successfully intercalated into LDHs by coprecipitation or anion exchange method. , While Cheng et al, in 2014, proved that acetate, terephthalate (TA), and p -toluate (pTA) could be intercalated into LDHs not only respectively, but also simultaneously with certain proportions . These studies indicate that the extraction of SCFAs from anaerobic fermentation liquid via the synthesis of LDHs is feasible.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Layered Double Hydroxides with Fermentation Liquid of Organic Waste To Extract Short-Chain Fatty Acids as a Biodenitrification Carbon Source

Liu

Zhang

et al. 2017

ACS Sustainable Chem. Eng.

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Short-chain fatty acids (SCFAs) were extracted from artificial and actual anaerobic fermentation liquid of organic waste via the synthesis of layered double hydroxides (LDHs), which was then used as external carbon source in biodenitrification process. Results of X-ray diffraction and Fourier transform infrared analysis indicate that SCFAs were successfully intercalated into LDHs in both artificial system and actual anaerobic fermentation liquid of food waste, with good slow release performance. When using SCFAs-LDH and SCFAs-Na as carbon source with COD/N ratio of 4:1, the nitrate removal efficiency and the utilization efficiency of carbon source were improved from 42.3% and 30.3% to 81.3% and 58.1%, respectively. A dynamic “release-utilization” balance of carbon source was always kept during denitrification process when using SCFAs-LDH, so that higher removal efficiency of nitrate and utilization efficiency of carbon source were obtained simultaneously. This study could help to recover SCFAs from organic wastes efficiently as a denitrification carbon source with slow release performance.

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Two-dimensional ultrathin nanosheets of Ni–In-layered double hydroxides prepared in water: enhanced performance for DNA adsorption

Cited by 20 publications

References 39 publications

Increasing cell viability using Cd-free – InP/ZnS@silica@layered double hydroxide – materials for biological labeling

Increasing cell viability using Cd-free – InP/ZnS@silica@layered double hydroxide – materials for biological labeling

Optimized synthesis of layered double hydroxide lactate nanosheets and their biological effects on Arabidopsis seedlings

Synthesis of Layered Double Hydroxides with Fermentation Liquid of Organic Waste To Extract Short-Chain Fatty Acids as a Biodenitrification Carbon Source

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