Title: The delineation of nanoscience and nanotechnology in terms of journals and patents: a most recent update
ArXiv ID: 0911.1445
Date: 2009-11-10
Authors: Researchers from original ArXiv paper
📝 Abstract
The journal set which provides a representation of nanoscience and nanotechnology at the interfaces among applied physics, chemistry, and the life sciences is developing rapidly because of the introduction of new journals. The relevant contributions of nations can be expected to change according to the representations of the relevant interfaces among journal sets. In the 2005 set the position of the USA decreased more than in the 2004-set, while the EU-27 gained in terms of its percentage of world share of citations. The tag "Y01N" which was newly added to the EU classification system for patents, allows for the visualization of national profiles of nanotechnology in terms of relevant patents and patent classes.
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Deep Dive into The delineation of nanoscience and nanotechnology in terms of journals and patents: a most recent update.
The journal set which provides a representation of nanoscience and nanotechnology at the interfaces among applied physics, chemistry, and the life sciences is developing rapidly because of the introduction of new journals. The relevant contributions of nations can be expected to change according to the representations of the relevant interfaces among journal sets. In the 2005 set the position of the USA decreased more than in the 2004-set, while the EU-27 gained in terms of its percentage of world share of citations. The tag “Y01N” which was newly added to the EU classification system for patents, allows for the visualization of national profiles of nanotechnology in terms of relevant patents and patent classes.
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The delineation of nanoscience and nanotechnology
in terms of journals and patents: a most recent update
Scientometrics, forthcoming
Loet Leydesdorff
Amsterdam School of Communications Research (ASCoR), University of Amsterdam,
Kloveniersburgwal 48, 1012 CX Amsterdam, The Netherlands.
loet@leydesdorff.net ; http://www.leydesdorff.net
Abstract
The journal set which provides a representation of nanoscience and nanotechnology at the
interfaces among applied physics, chemistry, and the life sciences is developing rapidly
because of the introduction of new journals. The relevant contributions of nations can be
expected to change according to the representations of the relevant interfaces among
journal sets. In the 2005 set the position of the USA decreased more than in the 2004-set,
while the EU-27 gained in terms of its percentage of world share of citations. The tag
“Y01N” which was newly added to the EU classification system for patents, allows for
the visualization of national profiles of nanotechnology in terms of relevant patents and
patent classes.
Introduction
In a recent publication, Leydesdorff & Zhou (2007) delineated (i) nanoscience in terms of
journals using betweenness centrality in the vector space as an indicator of
interdisciplinarity and (ii) nano-technology in terms of patents using the newly added tag
“Class 977” of the U.S. Patent and Technology Office (USPTO).1 In the meantime, the
European Patent Office (EPO) has made available online the additional tag “Y01N”
specifically designed for the nanosciences and nanotechnology (Scheu et al., 2006;
Hullmann, 2006). Y01N can be decomposed into Y01N2 for Bio-nanotechnology;
1 In the International Patent Classification (IPC) the field “B82B: Nano-structures: Manufacture and
treatment thereof” corresponds to the special class CL/977 which was added to the USPTO.
1
Y01N4 Nanotechnology for information processing, storage and transmission; Y01N6
Nanotechnology for materials and surface science; Y01N8 Nanotechnology for
interacting, sensing, or actuating; and Y01N10 Nanooptics.
In this study, the journal map for nanoscience and nanotechnology is updated using
precisely the same technique, but using data from the latest available Journal Citations
Report 2005. Within the newly delineated domain a publication and citation analysis will
be pursued comparing the leading countries (and the EU-27) in terms of percentages of
world share. The new tag of the EPO is used to provide another assessment of the relative
strengths and weaknesses of the various countries.
Delineation of the nano-relevant journal set in 2005
In 2005, twelve journals (Table 1) included in the Science Citation Index and its Journal
Citations Report contain the root “nano” in the title, while this number was only six in
2004 and three in 2003 (cf. Braun et al., 2007).
Current Nanoscience
Fullerenes Nanotubes and Carbon Nanostructures
IEEE Transactions on Nanobioscience
IEEE Transactions on Nanotechnology
Journal of Nanoparticle Research
Journal of Nanoscience and Nanotechnology
Microfluidics and Nanofluidics
Microsystem Technologies–Micro- and Nanosystems-Information Storage And Proc
Nano Letters
Nanotechnology
Physica E-Low-Dimensional Systems & Nanostructures
Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry
Table 1: Twelve journals with the root “nano” in their title included in the Journal
Citation Report 2005.
2
Using these 12 journals as seed journals, all journals citing or cited by them to the extent
of at least one percent of each seed journal’s total citations in the cited and citing
dimensions, respectively, will be considered as nano-relevant. These were 142 journals in
2005 (against 67 journals in 2004 and 85 journals in 2003). The expansion in 2005 is due
to the inclusion of IEEE Transactions on Nanobioscience. This journal makes a set of
journals in the life sciences relevant to the citation environment of the nano-group.
Among the 142 journals relevant in 2005, 79 are cited by one of the seed journals to the
level of more than 1% of the total citations of the respective journal (against 38 journals
in 2004). These journals can be considered as the knowledge base for the development of
an emerging cluster of nano-science journals. Figure 1 shows the map of these 79 citation
patterns after normalization, using the cosine as a similarity measure.
3
Figure 1: Betweenness centrality among the 79 journals cited by 12 nano-journals to the
extent of more than one percent of their respective citation totals (cosine ≥ 0.2).
igure 2: Percentage of betweenness centrality among the 79 journals cited by 12 nano-
igure 2 shows the journals with a percentage of betweenness centrality larger than one
.