Rationally designed nanotrap structures for efficient separation of rare earth elements over a single step.

Extracting rare earth elements (REEs) from wastewater is essential for the growth and an eco-friendly sustainable economy. However, it is a daunting challenge to separate individual rare earth elements by their subtle differences. To overcome this difficulty, we report a unique REE nanotrap that features dense uncoordinated carboxyl groups and triazole N atoms in a two-fold interpenetrated metal-organic framework (named NCU-1).

Halogen microregulation in metal-organic frameworks for enhanced adsorption performance of ReO/TcO.

Effective and selective removal of TcO, one of the most nuisance radionuclides in nuclear waste, is highly desirable but remains a significant challenge. Herein, two isostructural MOFs, NCU-3-X (X = Cl, Br) were constructed by ZnX coordinated to nitrogen-containing neutral ligand tri(4-(1H-imidazole-1-l) phenyl) amine for efficient adsorption ReO/TcO. Owning to the twofold interpenetrating structure, both of them exhibit strong alkaline resistance.

Tailor-Made Multiple Interpenetrated Metal-Organic Framework for Selective Detection and Adsorption of ReO.

Rationally designed new materials for the selective detection and adsorption of Tc, a problematic element in nuclear waste, are important and challenging in environmental monitoring. Here, we utilize an interpenetration approach to develop a cationic fluorescent metal-organic framework (NCU-2), which was constructed by a flexible tridentate nitrogen-containing ligand and Ag metal ions. The NCU-2 is a scarce case of 14-fold interpenetrated with excellent chemical stability even under 0.

An alkali-resistant metal-organic framework as halogen bond donor for efficient and selective removing of ReO/TcO.

Tc is one of the most problematic nuclear fuel products due to its long half-life and high environmental mobility. Direct removal of TcO from the highly alkaline solution of nuclear fuel is a serious and challenging environmental issue. In this work, the first efficient synthetic approach introducing halogens into a two-dimensional metal-organic framework, named Mn-MOF, is established using MnCl·4HO coordinating with neutral nitrogen-donor ligand, showing ultrahigh stability in alkaline aqueous even under 1 M NaOH.

Iron-Rich Conditions Induce OmpA and Virulence Changes of .

Iron ions affect the expression of outer membrane protein A (OmpA), a major pathogenic protein in To analyze the effect of iron ions on the expression of the OmpA protein of and explore its association with the virulence of OmpA. Site-directed mutagenesis was used to construct gene deletion strains and gene repair strains. The OmpA protein expression of under culture with different contents of iron ions was detected.

QTL mapping and genetic effect of chromosome segment substitution lines with excellent fiber quality from Gossypium hirsutum × Gossypium barbadense.

Chromosome segment substitution lines (CSSLs) are ideal materials for identifying genetic effects. In this study, CSSL MBI7561 with excellent fiber quality that was selected from BCF of CCRI45 (Gossypium hirsutum) × Hai1 (Gossypium barbadense) was used to construct 3 secondary segregating populations with 2 generations (BCF and BCF). Eighty-one polymorphic markers related to 33 chromosome introgressive segments on 18 chromosomes were finally screened using 2292 SSR markers which covered the whole tetraploid cotton genome.

Transcriptomic and biochemical analysis of upland cotton (Gossypium hirsutum) and a chromosome segment substitution line from G. hirsutum × G. barbadense in response to Verticillium dahliae infection.

Background: Verticillium wilt (VW), also known as "cotton cancer," is one of the most destructive diseases in global cotton production that seriously impacts fiber yield and quality. Despite numerous attempts, little significant progress has been made in improving the VW resistance of upland cotton. The development of chromosome segment substitution lines (CSSLs) from Gossypium hirsutum × G.

Comparative transcriptome analysis of cotton fiber development of Upland cotton (Gossypium hirsutum) and Chromosome Segment Substitution Lines from G. hirsutum × G. barbadense.

Background: How to develop new cotton varieties possessing high yield traits of Upland cotton and superior fiber quality traits of Sea Island cotton remains a key task for cotton breeders and researchers. While multiple attempts bring in little significant progresses, the development of Chromosome Segment Substitution Lines (CSSLs) from Gossypium barbadense in G. hirsutum background provided ideal materials for aforementioned breeding purposes in upland cotton improvement.

Atypical choroid plexus papilloma: clinicopathological and neuroradiological features.

Background Atypical choroid plexus papilloma (APP) is a rare, newly introduced entity with intermediate characteristics. To date, few reports have revealed the magnetic resonance (MR) findings. Purpose To analyze the clinicopathological and MR features of APP.

[The MRI findings in chordoid glioma of the third ventricle].

Objective: To study the features of chordoid glioma of the third ventricle.

Methods: The MRI findings of five cases of chordoid glioma of the third ventricle pathologically proved were reviewed and correlated with operative and pathologic reports.

Results: The patients were 3 women and 2 men, 30 - 50 years old in age.

Dual-energy computed tomography angiography for evaluating the renal vascular variants.

Background: Recognizing renal vascular variants preoperatively is important in order to avoid vascular complications during surgery. This study aimed to investigate the renal vascular variants with dual-energy computed tomography (DECT) angiography to provide valuable information for surgery.

Methods: A total of 378 patients underwent DECT.

[The effect of plasminogen activator inhibitor-1 on embryonic lung fibroblasts from rats].

Objective: To explore the effect of plasminogen activator inhibitor-1 (PAI-1) on the proliferation and conversion of rat embryonic lung fibroblasts and the synthesis of collagen, and therefore to explore the function of PAI-1 in pulmonary fibrosis.

Methods: The embryonic lung fibroblasts from pregnant Wistar rats were isolated and cultured in vitro. The reproduction rate of fibroblasts at 12 h, 24 h, and 48 h after being stimulated by PAI-1 with different concentrations (5, 10, 20, 40, 80, and 100 µg/L) was measured by MTT assay.

[Characterization of photochemical smog chamber and initial experiments].

A self-made new indoor environmental chamber facility for the study of atmospheric processes leading to the formation of ozone and secondary organic aerosols has been introduced and characterized. The characterization experiments include the measurements of wall effects for reactive species and the determination of chamber dependent * OH radical sources by CO-NO(x) irradiation experiments. Preliminary ethene-NO(x) and benzene-NO(x) experiments were conducted as well.

[Study of the "weekend effect" of O3, NOx and other pollutants in summer of Beijing].

The data of O3, NOx (NO and NO2), CO and SO2 observed at Beijing 325m meteorological tower from June 25 to July 7, 2000 and from July 26 to August 22, 2000 are used to analyze the difference of pollutant concentrations on weekends and weekdays, and its causes. Results show that except SO2, the correlations of O3, NOx, NO, NO2 and CO concentrations between weekends and weekdays are very significant,since they all pass the t-test significance level at alpha = 0.05.

Influence of auricular plaster therapy on sleeping structure in OSAS patients.

Objective: To evaluate the therapeutic effects of auricular plaster therapy for obstructive sleep apnea syndrome (OSAS) and the influence on sleeping structure.

Methods: 45 OSAS patients were randomly divided into a treatment group of 30 cases and a control group of 15 cases for comparison of the changes in parameters of respiration and sleep at night.

Results: The auricular plaster therapy significantly improved the hypoventilation index, respiratory disturbance index and other respiratory parameters as well as the sleeping parameters such as the time and rate of sleep at stage I and II, and the waking time and rate.

[Cotton fiber quality traits were controlled mainly by maternal plant genotype].

Hai1, a Gossypium barbadense L. variety with super fiber quality, and CCRI36 and Zhong221, two upland cotton cultivars (Gossypium hirsutum L.), were used as recurrent parents to develop two backcross combinations of CCRI36xHai1 and Zhong221xHai1.

[A study of the effectiveness and cost of de-escalation therapy for severe lower airway infection in a respiratory intensive care unit].

Objective: To evaluate the effectiveness of de-escalation therapy (DET) in patients with severe lower airway infection in the respiratory care unit.

Methods: Sixty-seven cases of severe lower airway infection (SLAI) were divided into two groups: a DET group (n = 29), and a non-DET group (NDET, n = 38). Samples of lower airway secretions were collected by blinded protected specimen brush for culture and Gram stain.

[Changes of the platelet function and serum anticardiolipin antibody in patients with pulmonary thromboembolism].

Objective: To explore the changes of the platelet function and serum anticardiolipin antibody (ACA) in patients with pulmonary thromboembolism (PTE).

Methods: Forty-eight patients with PTE diagnosed by spiral computed tomographic pulmonary angiography (CTPA) were included as the trial group, while 20 person in which PTE was excluded served as the control group. P-selectin, and GPIIb/IIIa expressed on platelets were measured by flow cytometry, and plasma TXB(2), 6-Keto-PGF1alpha, vWF, D-dimer and serum ACA were measured by ELISA and the changes of these parameters were compared 1 week later.