41 research outputs found
An Automatic Partitioning of Gutenberg.org Texts
Over the last 10 years, the automatic partitioning of texts has raised the interest of the community. The automatic identification of parts of texts can provide a faster and easier access to textual analysis. We introduce here an exploratory work for multi-part book identification. In an early attempt, we focus on Gutenberg.org which is one of the projects that has received the largest public support in recent years. The purpose of this article is to present a preliminary system that automatically classifies parts of texts into 35 semantic categories. An accuracy of more than 93% on the test set was achieved. We are planning to extend this effort to other repositories in the future
Orchestrating Cultural Heritage:Exploring the Automated Analysis and Organization of Charles S. Peirce's PAP Manuscript
This preliminary study introduces an innovative approach to the analysis and organization of cultural heritage materials, focusing on the archive of Charles S. Peirce. Given the diverse range of artifacts, objects, and documents comprising cultural heritage, it is essential to efficiently organize and provide access to these materials for the wider public. However, Peirce's manuscripts pose a particular challenge due to their extensive quantity, which makes comprehensive organization through manual classification practically impossible. In response to this challenge, our paper proposes a methodology for the automated analysis and organization of Peirce's manuscripts. We have specifically tested this approach on the renowned 115-page manuscript known as PAP. This study represents a significant step forward in establishing a research direction for the development of a larger project. By incorporating novel computational methods, this larger project has the potential to greatly enhance the field of cultural heritage organization
Electrochemical and X-ray Photoelectron Spectroscopy Surface Characterization of Interchain-Driven Self-Assembled Monolayer (SAM) Reorganization
Herein, we report a combined strategy encompassing electrochemical and X-ray photoelectron
spectroscopy (XPS) experiments to investigate self-assembled monolayer (SAM) conformational
reorganization onto an electrode surface due to the application of an electrical field. In particular,
3-mercaptopriopionic acid SAM (3MPA SAM) modified gold electrodes are activated with a 1-ethyl-3-
(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysulfosuccinimide (NHSS) (EDC-NHSS)
mixture by shortening the activation time, from 2 h to 15/20 min, labelled as Protocol-A, -B and -C,
respectively. This step, later followed by a deactivation process with ethanolamine (EA), plays a key
role in the reaction yields (formation of N-(2-hydroxyethyl)-3-mercaptopropanamide, NMPA) but
also in the conformational rearrangement observed during the application of the electrical field. This
study aims at explaining the high performance (i.e., single-molecule detection at a large electrode
interface) of bioelectronic devices, where the 3MPA-based SAM structure is pivotal in achieving
extremely high sensing performance levels due to its interchain interaction. Cyclic voltammetry (CV)
experiments performed in K4Fe(CN)6:K3Fe(CN)6 for 3MPA SAMs that are activated/deactivated
show similar trends of anodic peak current (IA) over time, mainly related to the presence of interchain
hydrogen bonds, driving the conformational rearrangements (tightening of SAMs structure)
while applying an electrical field. In addition, XPS analysis allows correlation of the deactivation
yield with electrochemical data (conformational rearrangements), identifying the best protocol in
terms of high reaction yield, mainly related to the shorter reaction time, and not triggering any side
reactions. Finally, Protocol-C’s SAM surface coverage, determined by CV in H2SO4 and differential
pulse voltammetry (DPV) in NaOH, was 1.29 * 1013 molecules cm2, being similar to the bioreceptor
surface coverage in single-molecule detection at a large electrode interface
About the amplification factors in organic bioelectronic sensors
A systematic comparison between electrochemical and organic bioelectronic sensors reveals a unified rational description for a transistor amplified detection
Correction: Printed, cost-effective and stable poly(3-hexylthiophene) electrolyte-gated field-effect transistors
Correction for 'Printed, cost-effective and stable poly(3-hexylthiophene) electrolyte-gated field-effect transistors' by Davide Blasi et al., J. Mater. Chem. C, 2020, DOI: 10.1039/d0tc03342a