Graphdiyne:from Preparation to Biomedical Applications

Graphdiyne(GDY)is a kind of two-dimensional carbon nanomaterial with specific configurations of sp and sp2 carbon atoms.The key progress in the preparation and application of GDY is bringing carbon materials to a brand-new level.Here,the various properties and structures of GDY are introduced,including the existing strategies for the preparation and modification of GDY.In particular,GDY has gradually emerged in the field of life sciences with its unique properties and performance,therefore,the development of biomedical applications of GDY is further summarized.Finally,the challenges of GDY toward future biomedical applications are discussed.     

Die Organisation und die Entwicklung der Direktion N„Isotop“

Bis zur Bildung der Direktion ?Isotop“ wurden in der Volksrepublik Bulgarien Radioisotopengeräte durch verschiedene Institute und Laboratorien entwickelt. In jener Etappc trugen die einschlägigen Forschungs- und Entwicklungsarbeiten der Laboratorien und Institute einen unsystematischen Charakter; sie waren nicht koordiniert und entsprachen nur teilweise den Erfordernissen der Volkswirtschaft. Deshalb ergab sich die Notwendigkeit, eine zentrale Organisation zu schaffen, die die Arbeiten auf dem Gebiet der Anwendung radioaktiver Nuklide zusammenfaßt und leitet.     

SpecPad: device‐independent NMR data visualization and processing based on the novel DART programming language and Html5 Web technology

SpecPad is a new device‐independent software program for the visualization and processing of one‐dimensional and two‐dimensional nuclear magnetic resonance (NMR) time domain (FID) and frequency domain (spectrum) data. It is the result of a project to investigate whether the novel programming language DART, in combination with Html5 Web technology, forms a suitable base to write an NMR data evaluation software which runs on modern computing devices such as Android, iOS, and Windows tablets as well as on Windows, Linux, and Mac OS X desktop PCs and notebooks. Another topic of interest is whether this technique also effectively supports the required sophisticated graphical and computational algorithms. SpecPad is device‐independent because DART's compiled executable code is JavaScript and can, therefore, be run by the browsers of PCs and tablets. Because of Html5 browser cache technology, SpecPad may be operated off‐line. Network access is only required during data import or export, e.g. via a Cloud service, or for software updates. A professional and easy to use graphical user interface consistent across all hardware platforms supports touch screen features on mobile devices for zooming and panning and for NMR‐related interactive operations such as phasing, integration, peak picking, or atom assignment. Copyright © 2017 John Wiley & Sons, Ltd.     

Silver chloride supported on Vitamin B1 -Organometallic magnetic catalyst: synthesis,density functional theory study and application in A3-coupling reactions

A highly efficient Fe₃O₄@VitB₁–Ag(I) magnetic catalyst has been obtained using surface modification of Fe₃O₄. To this end, silver chloride was immobilized on Fe₃O₄ nanoparticles via vitamin B₁ biomolecules. The synthesized biocompatible magnetic catalyst was applied in an A³-coupling reaction in the presence of aldehyde, amine and phenyl acetylene under solvent-free conditions and afforded the desired products in excellent yields. Also, interactions between metal and ligand in the Fe₃O₄@VitB₁–Ag(I) were studied using theoretical calculations.     

Studies on Poly(Dialkoxyphosphazenes) for the Medical Applications

Abstract

The presence of trace of chlorine in poly(diorganophosphazenes) [-N=P(OR)2-]., where R = C₂H₅, CH₂CF₃, C₂F₅, C₄H₅, C₆H₁₃, C₈H₁₇, C₁₂H₂₅, CH₂C₆H₅ in many cases leads to the substantial changes of their physicochemical properties and limits application possibilities of this class of polymers especial for the medical materials. Despite the optimization of reaction conditions for each nucleophilic alkoxy substituent, the obtained poly(dia1koxyphosphaenes) exhibited some physicochemical anomalies.     

液体聚异戊二烯的合成与应用研究进展

固态橡胶具有较高的分子量、强度及伸长率,在工业和日常生活中均得到广泛应用.然而,固态橡胶黏度较高,在应用中往往必须引入添加剂.而液体聚异戊二烯是一种液态橡胶,可以作为固态橡胶的软化剂;得益于其特殊的形态和性能,液体聚异戊二烯可望在多方面得到应用.对液体聚异戊二烯的合成与应用进行了评述.     

电化学生物传感器在环境监测中的应用及发展前景

简要介绍了电化学生物传感器的工作原理,重点论述了电化学生物传感器在环境监测领域的应用及其研究进展,主要包括水环境污染物和大气污染物的监测,以及农药残留的监测等.同时,对电化学生物传感器的发展方向及前景进行了展望.     

“点击”反应在制备环状聚合物中的应用

环状聚合物具有不同于线性高分子的独特性质,是一类具有应用前景的新型聚合物材料,但复杂的结构导致其合成过程复杂繁琐.＂点击＂化学由于其高效、可靠、高选择性的特点已成为拓扑高分子合成的新方法,活性自由基聚合（ATRP、RAFT和NMP）具有聚合物结构可控等特点,二者联用为环状聚合物的合成拓宽了思路.本文就近几年＂点击＂反应、＂点击＂反应与活性自由基聚合联用以及其他方法联用在环状聚合物中的应用进行综述.＂点击＂反应与这些方法的结合将在功能性环状聚合物的设计与合成中发挥积极的作用.