2024年3月22日 · Increasing interest in the utilization of hydrogels in various areas of biomedical sciences ranging from biosensing and drug delivery to tissue engineering has necessitated the synthesis of these materials using efficient and benign chemical transformations. In this regard, the advent of “click” chemistry revolutionized the design of hydrogels and a range of efficient reactions was ...

2024年3月24日 · This review article summarizes the recent advances in the fabrication of hydrogels using various metal-free " click " reactions and highlights the applications of thus obtained materials.

236 Metal-Free Tool Joint and Drill Collar Compound provides maximum protection to the drill string. 236 prevents galling, seizing, thread damage, and excessive wear resulting in prolonged tool joint and drill collar life.

Handy and tough, this metal-free tool won't be picked up by your detector. This Minelab Digging Tool is handy, tough and metal-free so it won't be picked up by your detector. It includes a semi-serrated side, helpful inscribed measurements, and a belt clip on the handle.

2023年2月9日 · Herein, we report an unprecedented metal-free radical difunctionalization of ethylene through a functional group migration strategy. The use of sulfone-based bifunctional reagents enables straightforward access to a wide range of diheteroarylated compounds under mild conditions in a highly selective manner.

Molyslip® ECOSLIP OCTG is a premium performance, metal-free, tool joint & drill collar compound based on highly refined low sulphur, low pour point mineral oil thickened with calcium soap.

2024年6月1日 · Here we describe a series of metal-free sampling devices and tools designed and constructed specifically to minimize the risk of contamination by trace elements during sampling of dust, rainwater, surface water, plants, and sediments.

2024年2月15日 · Single-phase, metal-free catalysts in the form of carbon-based materials represent a valuable choice with unique properties and remarkable performance in a wide variety of industrially relevant transformations.

Recently, we 18 have demonstrated the same FLP system can be utilized as a powerful metal-free tool for C–H activation and C−C bond formation which we propose takes place via a single-electron transfer reaction in which B(C 6 F 5) 3 first coordinates to the substrate to

Forum Metal Free Tool Joint Compound is a total non-metallic, API RP 7A1 tool joint compound that employs space age, inert, high-performance materials in a high quality, Lithium 12 Hydroxy-Stearate base composition.