32 research outputs found
Sodium dodecyl sulfate assisted synthesis hydroxyapatite for effective adsorption of methylene blue
Plate-shaped, hollow flower-shaped, and flower-clustered hydroxyapatite (HAP) were prepared with CaCl2 and (NH4)2HPO4 as raw materials and with sodium dodecyl sulfate (SDS) as additives. XRD, SEM, BET, and FT-IR were used to characterize the prepared HAP. The adsorption performance of methylene blue (MB) on HAP was investigated. The results showed that adding SDS to an appropriate amount increased the dispersibility and specific surface area of HAP. There is an electrostatic attraction between the surface of HAP and SDS, exposing an increasing number of negatively charged phosphate groups, making the adsorption capacity of cationic dye MB to be improved. SDS-HAP has a removal efficiency of more than 95% of MB under different pH and concentration conditions. The maximum saturated adsorption capacity reached 468.65 mg/g. After three adsorption-desorption cycles, the removal rate of methylene blue is still above 85%. The adsorption of MB by SDS-HAP is an exothermic physical process and conforms to the Langmuir model and the pseudo-second-order kinetic model.</p
Robust Superamphiphobic Coating Applied to Grease-Proof Mining Transformer Components
The iron core and heat sink in a mining transformer are
susceptible
to damage from oil spills or the harsh mine environment; the deterioration
of oil products in the underground environment and transformers produce
massive amounts of harmful liquid substances, which may lead to unnecessary
economic losses in drilling engineering. To overcome this issue, a
convenient and economical way to protect transformer components was
developed. Herein, we proposed an air spray technology at room temperature
for the preparation of antigreasy superamphiphobic coatings, which
are suitable for bulk metallic glass transformer cores and ST13 heat
sinks. The addition of polypyrrole powder effectively improves the
thermal conductivity and specific heat of the coating in the range
of 50–70 °C. More importantly, the fabricated coating
has excellent repellency to liquids, such as water, ethylene glycerol,
hexadecane, and rapeseed oil. Meanwhile, the coating has excellent
physical and chemical resistance and outstanding antifouling features,
which provide a feasible solution for combating grease pollution and
corrosion in the mine environment. Taking multifaceted stability into
consideration, this work contributes to enhancing the application
of superamphiphobic coatings in the fields of protecting transformer
components in the harsh environment or during transformer operation
faults
Additional file 2 of Dysregulated long noncoding RNAs in the brainstem of the DBA/1 mouse model of SUDEP
Additional file 2. Details of the corresponding probe and region of each lincRN
<i>Lactobacillus acidophilus</i> attenuated TBI-mediated increase of MLCP.
<p>The interaction of <i>Lactobacillus acidophilus</i> and time on MLCP protein concentrations was not significant. (A) ELISA analysis showed that the concentrations of MLCP in intestinal smooth muscle were significantly increased after TBI, **<i>P</i> < 0.01 compared with control. <i>Lactobacillus acidophilus</i> significantly attenuated TBI-mediated increase of MLCP, #<i>P</i> < 0.05 compared with TBI. (B) Immunohistochemistry analysis showed that marked increases in MLCP were observed in intestinal smooth muscle after TBI, and treatment with <i>Lactobacillus acidophilus</i> significantly attenuated TBI-mediated increases of MLCP.</p
Dual Gold Nanoparticle/Chemiluminescent Immunoassay for Sensitive Detection of Multiple Analytes
Multiple
antibiotics and mycotoxins usually simultaneously exist
in foods, which poses a serious threat to human health. How to detect
them in one test with high sensitivity and fidelity is challenging.
In this study, we develop a dual readout lateral flow immunodetection
platform that can quantitatively detect five kinds of antibiotics
and five kinds of mycotoxins within one sample. The platform is composed
of a chip and a portable readout instrument where gold nanoparticle
(AuNP)-based and chemiluminescence immunoassays could be performed
to reach a maximum throughput of 220 analytes in one setting. For
a rapid screen, qualitative analysis by detecting the color change
of the deposited AuNPs on the chip could be realized. For quantitative
results, chemiluminescence imaging and analysis can be completed within
15 min. Apart from the high throughput and high efficiency, this platform
has a high detection sensitivity. For instance, the limit of detection
(LOD) for thiamphenicol (a representative antibiotic) and fumonisins
B1 (a representative mycotoxin) is 8 times and 40 times lower than
those of the previously reported methods, respectively. Thus, this
dual readout immunodetection platform is promising as a universal
device for rapid and quantitative detection of multiple analytes with
high throughput, high sensitivity, and high fidelity
Heterogeneous Iron-Catalyzed Aerobic Oxidative Cleavage of C–C Bonds in Alcohols to Esters
A heterogeneous
iron-based catalyst for the aerobic oxidative cleavage
of C–C bonds in alcohols to access esters was developed. Various
alcohols including inactive long-chain alkyl aryl alcohols as well
as β-O-4 lignin model compounds can be smoothly converted to
the corresponding esters with molecular oxygen as the oxidant. Moreover,
the present catalyst system can successfully degrade organosolv lignin.
Base additives are not required except for inactive long-chain alkyl
aryl alcohols. The catalyst exhibits good recyclability and can be
easily recycled and reused up to seven times without a significant
loss of catalytic activity. Characterization and control experiments
confirmed that iron nanoparticles are mainly responsible for this
reaction. Preliminary mechanism studies indicate that a sequential
oxidation process exists in the reaction pathway
Additional file 1 of Dysregulated long noncoding RNAs in the brainstem of the DBA/1 mouse model of SUDEP
Additional file 1: Table 1. Differentially expressed antisense lncRNAs and nearby coding gene. *The SUDEP group compared with normal group. Table 2. Differentially expressed lincRNAs and adjacent mRNAs. lincRNAs, long intergenic noncoding RNAs.*The SUDEP group compared with normal group
Dual Gold Nanoparticle/Chemiluminescent Immunoassay for Sensitive Detection of Multiple Analytes
Multiple
antibiotics and mycotoxins usually simultaneously exist
in foods, which poses a serious threat to human health. How to detect
them in one test with high sensitivity and fidelity is challenging.
In this study, we develop a dual readout lateral flow immunodetection
platform that can quantitatively detect five kinds of antibiotics
and five kinds of mycotoxins within one sample. The platform is composed
of a chip and a portable readout instrument where gold nanoparticle
(AuNP)-based and chemiluminescence immunoassays could be performed
to reach a maximum throughput of 220 analytes in one setting. For
a rapid screen, qualitative analysis by detecting the color change
of the deposited AuNPs on the chip could be realized. For quantitative
results, chemiluminescence imaging and analysis can be completed within
15 min. Apart from the high throughput and high efficiency, this platform
has a high detection sensitivity. For instance, the limit of detection
(LOD) for thiamphenicol (a representative antibiotic) and fumonisins
B1 (a representative mycotoxin) is 8 times and 40 times lower than
those of the previously reported methods, respectively. Thus, this
dual readout immunodetection platform is promising as a universal
device for rapid and quantitative detection of multiple analytes with
high throughput, high sensitivity, and high fidelity
DataSheet1_A Novel Variant of the CHD2 Gene Associated With Developmental Delay and Myoclonic Epilepsy.zip
Pathogenic variants in CHD2 have been reported to have a wide range of phenotypic variability in neurodevelopmental disorders, such as early-onset epileptic encephalopathy, developmental delay, and behavior problems. So far, there is no clear correlation between genotypes and phenotypes. This study reports a Chinese patient with a novel heterozygous CHD2 mutation (c.4318C>T, pArg1440*). Her main clinical manifestations include developmental delay, myoclonic epilepsy, and hypothyroidism. Then, we reviewed a total of 144 individuals carrying CHD2 variants with epileptic encephalopathy. In terms of clinical manifestations, these patients are usually described with variable epilepsy phenotypes, including idiopathic photosensitive occipital epilepsy, Dravet syndrome, Jeavons syndrome, Lennox–Gastaut syndrome, juvenile myoclonic epilepsy, and non-specific epileptic encephalopathy. Among them, myoclonic seizures and generalized tonic-clonic seizures are the main seizure types in all patients hosting CHD2 single-nucleotide or indel variants (non-CNVs). At the molecular level, there are 102 types of CHD2 non-CNVs in 126 patients, almost one mutational type corresponding to one person, and there is no difference in the incidence ratio of each position. Furthermore, we summarized that a small proportion of patients inherited CHD2 variants, and not all patients with CHD2 variants had seizures. Importantly, the phenotypes, especially seizures control and fever sensitivity, and genotypes had a relative association. These results enriched the database of CHD2-relative neurodevelopmental disorders and provided a theoretical foundation for researching the relationship between genotypes and phenotypes.</p
<i>P</i>-values of a two-way ANOVA for the effects of <i>Lactobacillus acidophilus</i>, time, and their interactions on the ten variables (N = 90).
<p>Note: MLCK: myosin light chain kinase; MLCP: myosin light chain phosphatase; PKC: protein kinase C; ICC numbers: the numbers of interstitial cells of Cajal.</p><p>*indicates a significant difference (<i>P</i> < 0.05)</p><p>**indicates a highly significant difference (<i>P</i> < 0.01).</p><p><i>P</i>-values of a two-way ANOVA for the effects of <i>Lactobacillus acidophilus</i>, time, and their interactions on the ten variables (N = 90).</p