Microchemical systems have evolved rapidly over the last decade with extensive chemistry applications. Such systems enable discovery and development of synthetic routes while simultaneously providing increased understanding of underlying pathways and kinetics. We review basic trends and aspects of microsystems as they relate to continuous-flow microchemical synthesis. Key literature reviews are summarized and principles governing different microchemical operations discussed. Current trends and limitations of microfabrication, micromixing, chemical synthesis in microreactors, continuous-flow separations, multi-step synthesis, and integration of analytics are delineated. We conclude by summarizing the major challenges and outlook related to these topics.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/b906343a | DOI Listing |
Curr Pharm Biotechnol
September 2024
Federal University of Grande Dourados, College of Health Science, Dourados, MS, Brazil.
Background: Guettarda viburnoides Cham. & Schltdl., "veludinho do campo", is used in the Brazilian Amazon for its effects on the central nervous system (CNS) as a "brain tonic"; however, scientific evidence is needed to elucidate its ethnobotanical uses.
View Article and Find Full Text PDFAdv Sci (Weinh)
October 2024
Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.
Liquid manipulation using tubular actuators finds diverse applications ranging from microfluidics, printing, liquid transfer to micro-reactors. Achieving flexible and simple regulation of manipulated liquid droplets during transport is crucial for the tubular liquid actuators to perform complex and multiple functions, yet it remains challenging. Here, a facile tubular actuator for directional transport of various liquid droplets under the control of an externally applied magnetic field is presented.
View Article and Find Full Text PDFMicromachines (Basel)
March 2024
School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China.
The uCVD (microchemical vapor deposition) graphene growth system is an improved CVD system that is suitable for scientific research and experimental needs, and it is characterized by its rapid, convenient, compact, and low-cost features. The micro-hotplate based on an SOI wafer is the core component of this system. To meet the requirements of the uCVD system for the micro-hotplate, we propose a suspended multi-cantilever heating platform composed of a heating chip, cantilevers, and bracket.
View Article and Find Full Text PDFEnviron Res
July 2024
Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy.
Fibrous erionite is the only zeolite classified as Group 1 carcinogen by the International Agency for Research on Cancer (IARC). Carcinogenesis induced by erionite is thought to involve several factors as biopersistence, the iron role and cation exchange processes. To better understand these mechanisms, a detailed investigation at the micro scale was performed, collecting elemental information on iron and cation release and their distribution in biological systems by synchrotron micro-X-ray fluorescence mapping (SR-micro-XRF) and synchrotron micro-X-ray absorption spectroscopy (SR-micro-XANES) at the TwinMic beamline (Elettra synchrotron) and at the ID21 beamline of the European Synchrotron Radiation Facility (ESRF).
View Article and Find Full Text PDFJ Fish Biol
April 2024
INRAE National Institute for Agriculture and Environment, UR EABX, Aquatic Ecosystems and Global Changes Research Unit, Cestas, France.
Diadromous fish have exhibited a dramatic decline since the end of the 20th century. The allis shad (Alosa alosa) population in the Gironde-Garonne-Dordogne (GGD) system, once considered as a reference in Europe, remains low despite a fishing ban in 2008. One hypothesis to explain this decline is that the downstream migration and growth dynamics of young stages have changed due to environmental modifications in the rivers and estuary.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!