This feature article reviews the authors' work combined with highlighted specific aspects of polyaniline (PANI) macro/nanostructures, focusing on such issues as the following. 1) The new development of a hard-template method. 2) Evaluation of a template-free method in universality, controllability, and simplicity as well as the self-assembly mechanism. 3) Multi-functionality based on a template-free method associated with other approaches. 4) Cooperation effect of a micelle soft-template and molecular interactions as a new tool to complex 3D microstructures assembled from 2D or 1D nanostructures. 5) Electrical and transport properties of a single PANI nanotube, as measured by a four-probe method. 6) Sensors guided by reversible switching wettability through a doping/de-doping process. An outlook is also briefly given.
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http://dx.doi.org/10.1002/marc.200800817 | DOI Listing |
ACS Omega
December 2024
Faculty of Chemistry, University of Warsaw, Warsaw 02-093, Poland.
Gold nanobowls (AuNBs) synthesized by the template-free method were deposited on graphene oxide (GO) to obtain an ultrasensitive surface enhanced Raman spectroscopy (SERS) platform for folic acid (FA) detection. GO was conditioned in aqueous solutions at various pH values to optimize the adsorption of the FA molecule and the intensity of the SERS signal. It was found that the conditioning procedure influences the orientation of FA on the SERS supports and the quality of the spectra in result.
View Article and Find Full Text PDFSmall
January 2025
Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany.
Understanding and controlling the morphology of microgels is crucial for optimizing their properties and functions in diverse areas of application. The fabrication of microgels that exhibit both structural and chemical anisotropy using a template-free approach faces significant challenges. Existing approaches toward such microgels are typically limited to templating methods with low throughput.
View Article and Find Full Text PDFMikrochim Acta
December 2024
State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
An electrochemiluminescence (ECL) immunosensor was developed for the highly sensitive and specific detection of heart-type fatty acid binding protein (H-FABP) and the rapid diagnosis of acute myocardial infarction (AMI). H-FABP is a biomarker that is highly specific to cardiac tissue and is associated with a range of cardiac diseases. Following myocardial injury, the rate of increase in H-FABP levels is greater than that observed for myoglobin and troponin.
View Article and Find Full Text PDFACS Appl Bio Mater
December 2024
Smart Organic Materials Laboratory, Institute of Chemistry, Academia Sinica, Taipei City 115201, Taiwan.
In this paper, we report an inexpensive and easy-to-engineer flexible nanobiosensor electrode platform by exploring a nonconductive overhead projector (OHP) sheet for sweat Neuropeptide-Y (NPY) detection, a potential biomarker for stress, cardiovascular regulation, appetite, etc. We converted a nonconductive OHP sheet into a conductive nanobiosensor electrode platform with a hybrid polymerization method, which consists of interfacial polymerization of pyrrole and a template-free electropolymerization technique to decorate the electrode platform with poly(EDOT-COOH--EDOT-EG3) nanotubes. The selection of poly(EDOT-COOH) features an easy conjugation of NPY antibody (NPY-Ab) through EDC/Sulfo-NHS coupling chemistry, while poly(EDOT-EG3) is best known to reduce nonspecific binding of biomolecules.
View Article and Find Full Text PDFNanoscale
December 2024
Institute of Nano Science & Technology, Knowledge City, Sector 81, Mohali, Punjab-140306, India.
The relentless pursuit for technological advancement has fuelled intensive research into nanoarchitectures as fundamental components of various devices. One-dimensional (1-D) nanomaterials, including nanorods, nanowires, and nanotubes, have garnered significant attention due to their distinctive catalytic, optical, and electronic properties. Metal chalcogenides have emerged as promising candidates for diverse applications ranging from sensing devices to solar cells, particularly bismuth sulphide (BiS).
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