Utilizing photocatalytic technology for the value-added conversion of biomass derivatives, alongside the production of clean hydrogen energy, represents a viable approach to addressing energy and environmental challenges. However, the design of cost-effective and efficient photocatalysts remains a significant obstacle. In this work, we employed open-framework Prussian blue analogs as co-catalytic centers and combined them with ZnInS to construct a series of core-shell nanocube photocatalysts with varying metal compositions.
View Article and Find Full Text PDFOwing to their high sensitivity across a wide stress range, mechanical reliability, and rapid response time, flexible polymer foam piezoresistive sensors have been extensively used in various fields. The reliable application of these sensors under harsh environments, however, is severely limited by structural devastation and poor interfacial bonding between polymers and conductive nanoparticles. To address the above issues, robust MXene/CNT nanocoatings on the foam surface, where the chemical assembly of MXene nanosheets and the physical anchoring of CNTs lead to strong interfacial bonding, are designed and described, which endows foams with structural reliability and unexpected multi-functionalities without compromising their instinct properties.
View Article and Find Full Text PDFMXene-based thermal camouflage materials have gained increasing attention due to their low emissivity, however, the poor anti-oxidation restricts their potential applications under complex environments. Various modification methods and strategies, e.g.
View Article and Find Full Text PDFDespite incorporation of organic groups into silica-based aerogels to enhance their mechanical flexibility, the wide temperature reliability of the modified silicone aerogel is inevitably degraded. Therefore, facile synthesis of soft silicone aerogels with wide-temperature stability remains challenging. Herein, novel silicone aerogels containing a high content of Si are reported by using polydimethylvinylsiloxane (PDMVS), a hydrosilylation adduct with water-repellent groups, as a "flexible chain segment" embedded within the aerogel network.
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
December 2015
The effects of three tillage methods, i.e., no tillage, rotary tillage, deep tillage, on tea garden soil compaction, soil moisture, soil bulk density, yield component factors and tea yield were studied through field experiments in Langxi Country of Anhui Province.
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
October 2014
In order to investigate the effects of long-term tea planting on soil pH buffer capacity (pHBC), the variation of pHBC and its influence factors were investigated in tea gardens of 10, 15, 20, 25 and 30 years in Langxi and Qimen of Anhui Province. The results showed that the acid-base titration method was suitable for the determination of soil pHBC of tea gardens. The amount of acid-base added had approximate linear relationship with soil pH value in specific section (pH 4.
View Article and Find Full Text PDFPhotosynthetic bacteria (PSB), Rhodopseudomonas palustris CQK 01, were immobilized on the surface of a thin glass slide in a lab-scale flat panel photobioreactor under different flow rates and substrate concentrations. The morphology, dry weight and thickness of the mature PSB biofilms were determined to reveal the relationship between biofilm formation and hydrogen production performance. The mature biofilm formed at a low flow rate and a high substrate concentration showed a looser structure, these structures of the mature biofilm then affected the H(2) production performance of the bioreactor during mature stage.
View Article and Find Full Text PDFObjective: To investigate the imaging features of synovial tuberculosis of sheath of wrist.
Methods: Three patients of synovial tuberculosis of sheath of wrist underwent surgical operation from Oct. 2002 to Oct.
Objective: To analyze the indication of arthroscope by examining the correlations between cartilage injury degree confirmed by MRI and postoperative effect.
Methods: From Aug. 2005 to April 2008, 87 cases with knee osteoarthritis were treated by arthroscopes including 44 males and 43 females,aged from 16 to 67 years (means 46.
The application of immobilized-cell technology in photobioreactor for hydrogen production could offer improvements in photo-hydrogen production rate and light utilization efficiency. Indigenous Rhodopseudomonas palustris CQK 01 was attached to the surface of a cover glass slide in a flat-panel photobioreactor, to form biofilm under illumination with a range of intensities and wavelengths. The morphology and structure of mature photosynthetic bacterial (PSB) biofilm were determined to elucidate the relationship between biofilm formation and hydrogen production performance.
View Article and Find Full Text PDFBackground: Kawasaki disease (KD) is a common cause of acquired heart disease in children. Recent studies have focused on the biochemical markers of the myocardium, their high sensitivity and specificity and significance in the diagnosis of KD. This study aimed to determine the serum level of brain natriuretic peptide (BNP) and its relation with the heart function of children with KD and to explore its clinical value in diagnosis of KD.
View Article and Find Full Text PDFBacterial fimbriae can accept foreign peptides and display them on the cell surface. A highly efficient gene replacement method was used to generate peptide vaccines based on Salmonella enterica subsp. enterica serovar Typhimurium LT2.
View Article and Find Full Text PDFMitochondrial DNA (mtDNA) differs from nuclear genome in many aspects such as lack of recombination, thus the investigation of mtDNA plays an essential role in human evolutionary history. We compared different sequences (approximately 2 kb) of ATP6, ATP8 and Cyt b genes in mtDNA among Tibetans in three different zones and found that the whole mtDNA sequences of the three genes, ATP6 and ATP 8 genes deviate gradually from neutral model with the increase of altitudes, yet no differences were observed. Also we found that the effect of purifying selection on Cyt b gene was elevated with the decrease of altitudes.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
August 2008
Objective: To construct the haplogroup and perform an analysis of mitochondrial whole-genome sequence in Tibetan and Han Chinese. Variations of nucleotide of mitochondrial DNA (mtDNA) were identified and compared between the Tibetan and Han population.
Methods: The mtDNA whole sequences of 40 Tibetan and 50 Han individuals were sequenced by an Applied Biosystems 3730 DNA automatic sequencer.
Live attenuated bacteria have great potential for use in vaccine development due to several unique advantages, including stable antigen expression, effective antigen presentation, convenient and inexpensive delivery, and low cost of vaccine production. In this study, we expressed hepatitis B virus x gene (HBx) on mouse melanoma cells as the target antigen and constructed Salmonella-based HBx vaccines by two strategies, i.e.
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