Performance and mechanism of amphiphilic polymeric chelator for enhanced removal of high concentrations of Cu(II) from wastewater.

An amphiphilic polymeric chelator (APC16-g-SX) grafted with sodium xanthate (SX) groups was successfully prepared for the efficient removal of high concentrations of Cu(II) from wastewater. The ordinary polymeric chelator (PAM-g-SX) based on linear polyacrylamide (PAM) was also prepared for comparative studies. The polymeric chelators were characterized by Fourier transform infrared spectroscopy (FT-IR), solid-state nuclear magnetic resonance (C-NMR), gel permeation chromatography (GPC), elemental analyzer, and scanning electron microscope (SEM).

Two novel rhodamine-based fluorescent probes for the rapid and sensitive detection of Fe: Experimental and DFT calculations.

Fe ions play an important role in both biological and environmental field. In this work, two novel rhodamine-based colorimetric and fluorescent probes (RBA2 and RBA3) were designed and synthesized for the efficient detection of Fe. Upon the addition of Fe, the fluorescence intensity of RBA2 and RBA3 enhanced 108-fold and 222-fold, respectively.

Strength of suture-button fixation versus ligament reconstruction in syndesmotic injury: a biomechanical study.

Purpose: To compare the biomechanical characteristics of suture-button fixation versus ligament reconstruction using semitendinosus tendon autograft in treatment of syndesmotic injury in cadaver biomechanical study.

Methods: Eight matched pairs of human cadaveric lower-extremities were measured intact, then following simulated syndesmosis injury by cutting the anterior tibiofibular ligament (AITFL), the distal 15 cm of the interosseous membrane (IO), and the deltoid ligament. Thereafter, the syndesmotic injury was treated by suture-button fixation or ligament reconstruction.

Association between metabolic syndrome and knee osteoarthritis: a cross-sectional study.

Background: Osteoarthritis (OA) is the most prevalent chronic joint disease in China. The aim of this study was to examine the association between metabolic syndrome (MetS) and knee OA in a population-based Chinese study.

Methods: Data included in this analysis is from a cross-sectional study, i.

MRI-based tendon bone healing is related to the clinical functional scores at the first year after anterior cruciate ligament reconstruction with hamstring tendon autograft.

Purpose: The correlation between tendon bone healing and clinical functional scores after anterior cruciate ligament reconstruction (ACLR) using four-stranded hamstring tendon autograft has rarely being reported. The purpose of this study was to determine the correlation between magnetic resonance imaging (MRI)-based tendon bone healing and clinical functional scores after ACLR using hamstring tendon.

Methods: Thirty-eight patients with ACLR using four-stranded hamstring tendon autograft were included in this prospective study in the authors' hospital from 2013 to 2014.

UTE-T2 Analysis of Diseased and Healthy Achilles Tendons and Correlation with Clinical Score: An In Vivo Preliminary Study.

. To compare T2 value of healthy and diseased Achilles tendons (AT) with a recently introduced three-dimensional ultrashort echo time (3D-UTE) sequence and analyze the correlation between T2 value and clinical scores. .

Biomechanical Comparison of Modified Suture Bridge Using Rip-Stop versus Traditional Suture Bridge for Rotator Cuff Repair.

. To compare the biomechanical properties of 3 suture-bridge techniques for rotator cuff repair. .

Strength of suture anchor versus transosseous tunnel in anatomic reconstruction of the ankle lateral ligaments: a biomechanical study.

Purpose: The purpose of this study was to compare the biomechanical characteristics of fixation with 2-suture anchors versus transosseous tunnel fixation in anatomic reconstruction of the ankle lateral ligaments.

Methods: Six matched pairs of human cadaveric ankles underwent anatomic lateral ankle reconstruction, and fixation of the graft on the talus was achieved with 2 suture anchors or a transosseous tunnel. Ankles for the transosseous tunnel group were chosen at random, with the paired contralateral ankles used for the 2-suture anchor group.

Efficacy and safety of placing nasoenteral feeding tube with transnasal ultrathin endoscope in critically ill patients.

Background: The placement of an enteral feeding tube is the foundation for providing enteral nutrition. But due to the anatomic complexity of the stomach and the duodenum, to a certain degree, there are some technical difficulties in the placement of postpyloric feeding tube, especially in critically ill patients. This study aimed to evaluate the efficacy and safety of placing nasoenteral feeding tube with a transnasal ultrathin endoscope.

[Effect of exogenous interferon gamma on the healing of injured skeletal muscle following injury].

Objective: To observe the influence of combined injection with human interferon (hlFNgamma) and human insulin-link growth factor-1 (hIGF-1) on regeneration and fibrosis of skeletal muscle after acute contusion.

Methods: A standard contusion model was reproduced at the right gastrocnemius in 64 male mice of 7 to 12 weeks. All the mice were randomly divided into 4 groups, such as group A (injection with hIFNgamma), group B (injection with hIGF-1), group C (injection with hIGF-1 and hIFNgamma), and group D (injection with physiological saline as control).

[Application endoscopic mucosal resection to therapy early gastrointestinal cancer and precancerous lesion].

Objective: To explore the clinical value of endoscopic mucosal resection (EMR) on early gastrointestinal cancer and precancerous lesion.

Methods: The EMR data of 42 lesions from 28 patients, collected from Apr. 2001 to Dec.

Effects of folic acid on epithelial apoptosis and expression of Bcl-2 and p53 in premalignant gastric lesions.

Aim: To evaluate the effects of folic acid on epithelial apoptosis and expression of Bcl-2 and p53 in the tissues of premalignant gastric lesions.

Methods: Thirty-eight patients, with premalignant gastric lesions including 18 colonic-type intestinal metaplasia (IM) and 20 mild or moderate dysplasia, were randomly divided into a treatment group (n = 19) receiving folic acid 10 mg thrice daily and a control group (n = 19) receiving sucralfate 1,000 mg thrice daily for 3 mo. All patients underwent endoscopies and four biopsies were taken prior to treatment and repeated after concluding therapy.