Capturing Different Intermediate Phases during Zeolite Synthesis.

Despite extensive efforts over the past several decades, the current mechanistic understanding of zeolite crystallization is still far from satisfactory, thus precluding the synthesis of designer zeolites. Here we show that the nucleation and in situ transformation pathways during the synthesis of medium-pore zeolite TNU-9 can be altered by controlling the extent of cooperative structure direction between Na and Cs ions in the presence of 1,4-bis(-methylpyrrolidinium)butane cations as an organic structure-directing agent. The intermediate phase selectivity was found to change from bikitaite to analcime to layered MCM-22 precursor when the gel Na/Cs ratio was adjusted to 7, 15, and 20, respectively.

Eco-friendly, highly interpenetrated and slightly swollen pHEMA hydrogel foam for durable underwater superoleophobicity and emulsion separation.

Despite the emergence of hydrogels as ideal candidates for preparing the superhydrophilic materials for emulsion separation, their structural stability and swelling still hinder their long-term use, mainly due to structure defects after swelling. Herein, differing from the common modification, the eco-friendly poly 2-hydroxyethyl methacrylate (pHEMA) hydrogel foam was designed and synthesized via a one-step strategy by using the high internal phase emulsion (HIPE) template method, which endowed it with a highly interpenetrated porous structure. Unlike the normal swellable hydrogels such as poly(N-isoproplyacrylamide) (PNIPAM) hydrogel, or modified hydrogel coatings, the pHEMA hydrogel foam displayed stable structure and underwater superoleophobicity after 20 d of immersion in water.

Coupling Different Periodic Building Units for Intergrowth Zeolites.

Multiple-phase disordered zeolites, i.e., intergrowth zeolites, are important industrial catalysts, like single-phase ordered zeolites, but little is known about their rational synthesis and phase competition, mainly due to current poor understanding of the zeolite crystallization mechanism.

Pediatric deep venous thrombosis associated with Staphylococcus aureus osteomyelitis.

Introduction: Our objective was to evaluate clinical features of children with deep venous thrombosis (DVT) and acute hematogenous osteomyelitis (AHO) caused by Staphylococcus aureus.

Methodology: We analyzed 4 years of medical records of patients with AHO and DVT caused by Staphylococcus aureus (S. aureus) and compared clinical and biochemical characteristics of AHO with and without DVT, as well as patients whose DVT dissolved in ≥ 3 weeks.

Synthesis and Crystal Growth Mechanism of PST-2: An Aluminosilicate SBS/SBT Zeolite Intergrowth.

The synthesis of PST-2, an aluminosilicate zeolite intergrowth of cage-based, large-pore SBS and SBT topologies, and its intergrowth characteristics are presented. With the Si/Al ratio and crystallization inorganic structure-directing agent in zeolite synthesis mixtures fixed to 8.0 and Cs ions, respectively, pure PST-2 is obtained at 120 °C using tetraalkylammonium ions with C/N ratios of 5-9 as a charge density mismatch (CDM) organic structure-directing agent (OSDA).

Red-Emissive Sulfur-Doped Carbon Dots for Selective and Sensitive Detection of Mercury (II) Ion and Glutathione.

Carbon dots (CDs) show great potential in bioimaging and biosensing because of their good biocompatibility and excellent optical properties. However, CDs with intense red emissions for sensitive and selective detection are rarely reported. Herein, we prepared the red-emissive carbon dots (RCDs) through a facile hydrothermal method using tetra (4-carboxyphenyl) porphyrin (TCPP) and thiourea as starting materials.

Cobalt-Doped Carbon Quantum Dots with Peroxidase-Mimetic Activity for Ascorbic Acid Detection through Both Fluorometric and Colorimetric Methods.

In this work, we fabricated cobalt-doped carbon quantum dots (Co-CQDs) by a one-pot hydrothermal method with cobalt tetraphenylporphyrin and 1,2-ethanediamine as precursors. The morphology and structure of the Co-CQDs were characterized through transmission electron microscopy, X-ray diffraction spectra, Fourier transform infrared, and X-ray photoelectron spectra. The Co-CQDs emitted intense blue luminescence under ultraviolet irradiation and exhibited a typical excitation-dependent emission property.

lipopolysaccharide (Pg-LPS) influences adipocytes injuries through triggering XBP1 and activating mitochondria-mediated apoptosis.

Obesity is an important public-health problem worldwide. This study aimed to determine effects of porphyromonas gingivalis lipopolysaccharide (Pg-LPS) on adipocytes injuries and explore associated mechanisms. Adipocytes were isolated from SD rats.

Eco-friendly and durable PCPS nanoparticles for the effective separation of oil-water emulsions.

Oil pollution is one of the main environmental problems that is attracting increasing attention from people. In this study, a new composite, namely a PNIPAm-Clay-γPGA-SiO (PCPS) nanomaterial, was prepared through chemical modification. The material exhibited excellent separation efficiencies for both oil-in-water (O/W) and water-in-oil (W/O) emulsions.

Seawater-enhanced tough agar/poly(N-isopropylacrylamide)/clay hydrogel for anti-adhesion and oil/water separation.

Hydrogels as typical hydrophilic materials are promising candidates for designing novel functional materials for anti-fouling, oil/water separation, wearable devices, tissue scaffolds, etc. However, it still remains a challenge to design stable and tough hydrogels for applications in complex environments of high stress, temperature, salt, and pH. Herein, we fabricate a novel seawater-enhanced Agar/Poly(N-isopropylacrylamide)/clay hydrogel (APNC gel) through a facile photo-initiated polymerization process.

Screening chemical modulators of benzoic acid derivatives to improve lipid accumulation in SR21 with metabolomics analysis.

Background: sp. is a marine fungus with great potential as an alternative commercial source of lipids rich in polyunsaturated fatty acids (PUFAs). To further increase lipid accumulation in sp.

Cutaneous and systematic metastasis of testicular choriocarcinoma: Case report and literature review.

Rationale: Cutaneous metastasis of testicular choriocarcinoma is exceptionally uncommon. To our knowledge, only 14 cases have been reported in the past 10 years in the pubmed. We have an uncommon case of testicular choriocarcinoma who has metastasized to the adjacent skin and organ systems.

[Clinical analysis of children with lymphoma complicated with severe pneumonia due to novel influenza A (H1N1) virus infection].

Objective: To study the clinical features and treatment of severe pneumonia due to novel influenza A (H1N1) virus in children with lymphoma during chemotherapy.

Method: The clinical manifestations, radiologic features, reasons of misdiagnosis, experiences in treatment and prognosis of 4 children with lymphoma complicated with pneumonia due to novel influenza A (H1N1) virus during chemotherapy were analyzed retrospectively.

Result: Four children out of the 54 patients with hematologic disorders who were receiving chemotherapy suffered from H1N1 influenza.

MSCT manifestations with pathologic correlation of abdominal gastrointestinal tract and mesenteric tumor and tumor-like lesions in children: a single center experience.

To study the multi-slice spiral computed tomography (MSCT) manifestations of gastrointestinal tract (GIT) and mesenteric tumor and tumor-like lesions in children and correlation with pathologic findings. 22 patients (17 male, 5 female; age ranged from 3 days to 11 years; with mean of 4.2 years) were screened out by ultrasonography (US) at first, then were performed with abdominal non-enhanced CT (NECT) and contrast-enhanced CT (CECT) scans.

Assessment of cystic renal masses in children: comparison of multislice computed tomography and ultrasound imaging using the Bosniak classification system.

To retrospectively compare contrast-enhanced multislice computed tomography (MSCT) and ultrasound (US) imaging for the assessment of cystic renal masses in children using the Bosniak classification system. Twenty-two consecutive patients (age 1 month to 5.2 years, mean 2.

CT characteristics of primary retroperitoneal neoplasms in children.

Primary retroperitoneal neoplasms are uncommon in children. Retroperitoneal neoplasms are either mesodermal, neurogenic, germ cell ectodermal or lymphatic in origin. In general, primary retroperitoneal neoplasms in children have different spectrum and prevalence compared to those in adults.

[Imaging and quantitative measurement of brain extracellular space using MRI Gd-DTPA tracer method].

Objective: To observe the diffusion of Gd-DTPA in brain extracellular space (ECS) by magnetic resonance imaging(MRI) and investigate the feasibility of ECS measurement by using MRI tracer method in vivo.

Methods: 2 microL Gd-DTPA was introduced into ECS by caudate nucleus according to stereotaxic atlas in 8 Sprague Dawley(SD) rats (male, 280-320 g). The MRI scans were performed at 1 h, 3 h, 6 h, 9 h and 12 h respectively after administration.

[Diagnosis and treatment of invasive pulmonary aspergillosis in 21 children with non-hematologic diseases].

Objective: To explore diagnosis and treatments of invasive pulmonary aspergillosis (IPA) in children with non-hematologic diseases.

Method: Twenty one patients without hematological malignancy were diagnosed with proven or possible IPA from July 2002 to June 2008. The risk factors, clinical manifestations, chest radiographic findings, microbiological and histopathological evidence, diagnostic procedures, treatment and prognosis were retrospectively reviewed.

[Recurrent massive bloody pleural effusion caused by pancreatic pleural fistula in a case].

Objective: To introduce the early clinical features and the main points of diagnosis and treatment of children with pancreatic pleural fistula presenting massive bloody pleural effusion.

Method: The clinical data of symptoms, signs, laboratory examination, diagnosis and treatment methods of pancreatic pleural fistula in a child are presented.

Result: A 4-year-old boy presented with one month history of intermittent fever, cough, chest tightness and chest pain.

Use of automatic tube current modulation with a standardized noise index in young children undergoing chest computed tomography scans with 64-slice multidetector computed tomography.

Background: The automatic tube current modulation (ATCM) technique is available on multidetector computed tomography (MDCT) scanners, and its dose reduction benefits in clinical applications have been documented primarily in adult patients.

Purpose: To evaluate the use of ATCM to reduce radiation dose while maintaining consistent image quality for young children undergoing 64-slice MDCT chest scans.

Material And Methods: Chest scans (120 kV, small-scan field of view, 5-mm image slice thickness) were performed for 50 consecutive young children (0.

[Clinical studies of children with bronchiolitis obliterans].

Objective: Bronchiolitis obliterans (BO) is a chronic airflow obstruction syndrome associated with inflammatory lesions of the small airways. The etiology, pathogenesis, effective treatment and prognosis of this disorder remain uncertain by now. There has been no large scale clinical research on BO in China.

Usefulness of 64-slice MDCT for follow-up of young children with coronary artery aneurysm due to Kawasaki disease: initial experience.

To evaluate the initial application and value of 64-slice multidetector computed tomography as an alternative diagnostic modality in the follow-up of young children with coronary artery aneurysm due to Kawasaki disease. Twelve boys (mean age 5.1 years, range 1.