Progress on the application of electrochemiluminescence biosensor based on nanomaterials

In this review, we check out the number of published literature in the field of ECL biosensors trends during nearly a decade, and compare the research status of four different types of biosensors; summarize the application forms of nanomaterials in ECL biosensor. We have an overview of the building patterns and application example of the four main types of biosensors in the paper.     

“鱼”乐圈大揭秘

This article introduces the relationship between chemistry and fish farming, fish selling, and fish food. The nitrogen cycle process in fish ponds is introduced to explain the fish farming. "Yufuling" is used as the entry point to fish selling to connect food safety with chemistry. Fishy smell is explained from a chemical perspective for fish food. This paper aims at making a scientific explanation of life phenomena, deepening the consciousness of chemical life, helping people establish a correct view of chemical science, and inspiring youth to learn to use the knowledge that they have learned to explain life phenomena. This paper also tries to show the youth that life cannot be separated from chemistry, and chemistry cannot be separated from life.     

含钼化合物及其配合物的抗癌抗肿瘤活性

钼是生命体所必需的微量元素。本文介绍了钼在人体中的作用，钼缺乏和钼过量对人体的影响，并介绍了含钼化合物以及配合物的抗癌抗肿瘤研究情况。     

Nd—Al双金属活性体的组成及其对共轭双烯烃的聚合

稀土Ziegler-Natta催化剂活性体对双烯烃配位聚合的研究已有很多报道。作者曾从NdCl_3·3P_(350)~(**)-Al(i-Bu)_3体系分离出Nd-Al双金属活性体。本文从NdCl_3·3P_(350)-HAl(i-Bu)_2和Al(C_2H_5)_3反应体系中分离出一系列Nd-Al双金属活性体,用元素分析方法研究了这些活性体的组成,并综合考察了在无助催化剂AlR_3存在下从不同烷基铝获得的活性体本身对共轭双烯烃的定向聚合能力。 单体、溶剂、HAl(i-Bu)_2、Al(C_2H_5)_5及活性体的合成,聚合方法,聚合物表征均按文献[4]。     

脊髓小脑变性疾病病人血清铜,锌,铝,铁含量的研究

脊髓小脑变性疾病（ＳＣＤ）的病因可能与遗传、神经生化紊乱、感染、微量元素平衡障碍及自由基损伤等因素有关，其中微量元素平衡障碍的研究具有重要意义。检测了ＳＣＤ中发病率较高的橄榄桥小脑萎缩症（ＯＰＣＡ）及晚发性小脑皮质萎缩症（ＬＣＣＡ）病人１５例血清中铜、锌、铝、铁等微量元素含量。发现病人比对照组铜明显降低，Ｐ〈０．０１；锌明显降低，Ｐ〈０．０１；铝明显升高，Ｐ〈０．０１；铁无明显差别。     

四（2,4—二叔戊基苯氧基）酞菁铜（Ⅱ）的合成及其LB膜

合成了标题酞菁铜衍生物,并通过元素分析,高压液相色谱,紫外光谱,红外光谱,核磁共振谱,电镜,顺磁共振谱及质谱加以确认。该化合物在稀氯仿溶液和LB膜中各以单,双分子缔合的形式存在。Z型沉积形成的单层LB膜对氨气有很高的灵敏度和选择性。     

High-throughput protein analysis by multiplexed sodium dodecyl sulfate capillary gel electrophoresis with UV absorption detection

We have developed a novel, high-throughput approach for molecular mass determination of proteins from 14 200 to 116 000 based upon multiplexed, absorbance-based capillary electrophoresis. Via capillary multiplexing, 96 samples were analyzed simultaneously within 30 min. Detection with ultraviolet light obviates the need for protein staining or derivatization. The detection limit of the system was estimated at 5 microg/ml bovine serum albumin (BSA) when sampled from 12.5 mM Tris-HCl. The linear dynamic range was over two orders of magnitude from 5 microg/ml to 1000 microg/ml for BSA. Better than 5% sizing accuracy for protein molecular mass determination and excellent run-to-run and day-to-day reproducibility was obtainable with the described method.     

The Greatest Lower Bound of a Boros–Moll Sequence

Mathematical Notes - The Boros–Moll polynomials $$P_m(a)$$ arise in the evaluation of a quartic integral. In the past few years, there has been some remarkable research on the properties of...