Chemical Engineering Resources at Purdue University Libraries
Literature Searching
What to do when a,Google”
search is not enough?
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Song Yu
syu@purdue.edu
Phone,496-7279
Chemical Information Specialist
Assist,Prof,of Library Sciences
Purdue University
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
To Warm Up …
Ideas,common terms that we use when
doing literature searches
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
TERTIARY
LITERATURE
Information
Retrieval
Structure of the literature and Channels of Communication
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Search Operators,Wildcards,and Parentheses
? What are search operators?
? AND,OR,NOT,SAME,NEAR
? What are wildcards?
?? = one character
?E.g,EN?OBLAST will search ENDOBLAST and
ENTOBLAST
? * = zero to many characters
?E.g,Gene* will search Gene,Genes,General,
Generation
? Combination of? and *
?E.g,CH?M* will search CHEMISTRY,CHEMIST,
CHEMICAL,CHEMIE,CHIMICA …
? Parentheses
? (A or B) and C,(B and C) not A
A B
C
Note,different databases
have different wildcards,
Check their Help file to find
out what to use.
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
What is in a citation?
?Author
?Title
?Source/journal
?Enumeration
(volume/issue)
?Chronology (date)
?Pagination
Cui,Yi; Lieber,Charles M..,Functional nanoscale
electronic devices assembled using silicon nanowire
building blocks." Science 291:5505 (2001),851-3,
Bibliographic Information
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Cited/Citing Reference?@#&!
?Linking to the original cited
paper
?Linking to papers which cite the
same paper (Time Cited)
?Finding related papers
1994
19911992
1987
1988
1957
1984
1982
1988
1987
1957
Known Paper
Cited Paper
New paper retrieved via cited
reference searching
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Major Databases in
Chemical Engineering
?COMPENDEX (OVID)
?SciFinder Scholar (CAS)
?Web Of Science (ISI)
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Major Databases in
Chemical Engineering
?COMPENDEX (OVID)
Engineering and technical literature,as well as
related fields in science and management,The
records in the database are drawn from over
2,600 published journals,conference proceedings
and individual conference papers,technical
reports,monographs,and other materials,
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Major Databases in
Chemical Engineering
?SciFinder Scholar (CAS)
Collection of Chemical Databases,CAPlus,CASREACT,
CHEMCATS,CHEMLIST,Registry,Medline
Chemistry Plus a Whole Lot More!
Agriculture Science / Biology and Life Sciences /
Engineering Sciences / Food Sciences / General
Chemistry / Geological Sciences / Material Sciences /
Medical Sciences / Physics / Polymer Science
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Major Databases in
Chemical Engineering
?Web Of Science (ISI)
Accesses multidisciplinary databases of
bibliographic information from thousands of
scholarly journals,The databases are indexed so
you can search for specific articles by subject,
author,journal,and/or author address,You can
also search the databases for articles that cite a
known author or work.
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Access to the Databases
? http://www.lib.purdue.edu/eresources/index.html
choose,By Title”
? COMPENDEX (OVID)
? Web based,need your Purdue ID
? SciFinder Scholar (CAS)
? Server/Client based
? Windows Terminal Server
? To download the primary client software,go to
http://www.lib.purdue.edu/wts
? Java client can not print and save your searches
? Web Of Science (ISI)
? IP based
? Off campus access
? Libraries Proxy server
? http://www.lib.purdue.edu/proxy
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
SciFinder Scholar
Coverage back to 1907 by one search!
? CAplus,1907 ~,+21.5 mil documents from +9000 journals--
Updated daily with new citations,weekly with indexed records
? CASREACT,1974+,+6 mil single and multi-step reactions
? CHEMCATS,+5.3 mil Commercial chemicals
? CHEMLIST,over 227,000 Regulated chemicals
? Registry,1965+,20.3 mil substances,21.8 mil biosequences
? Medline,1958+,11 mil biomedical citations (including
OLDMEDLINE)
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Web of Science
?8,500 peer-reviewed journals in science,
social science,arts and humanities
worldwide
? Science Citation Index (6014 Journal titles)
? 230 Disciplines
? 1350 in chemistry,122 in chemical engineering
?Update weekly
?Purdue has access from 1977
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Compendex
?Index +5000 journals world wide
?1987 –
?Update every week by EI,updated
monthly by OVID.
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example One
?Find the review articles written in English on
gold nanoparticles for catalysts
? SciFinder Scholar
?Topic search,gold nanoparticles for catalyst
?Refine by Document type,and Language
?Got 13 review articles
?Check the citing articles for Shipway,Andrew N.; et
al,Nanoparticles as structural and functional units in
surface-confined architectures,-> 13
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example One
?Find the review articles written in English on
gold nanoparticles for catalysts
? Web of Science
?General search in Topic,(gold and nanoparticl*) and
cataly*
?Limited by Language and Document type
?Got 13 review articles
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example One
?Find the review articles written in English on
gold nanoparticles for catalysts
? Compendex
?Search (Gold or Au),nanopartic$,and catalys$
seperately
?Combine them together
?Limited to Journal articles/English (40)
?Limited to Research Review
?Got 0 review articles
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Further Investigation
? If SciFinder Scholar indexes more journals and
cover more years than Web of Science,why my
search retrieve the same number of articles?
Crooks,RM,Zhao MQ,et al,Accounts of Chemical
Research 34(3),181-190.
The most cited review in Web of Science,is also in
SciFinder Scholar!!
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
SciFinder Scholar Record:
Dendrimer-Encapsulated Metal Nanoparticles,Synthesis,Characterization,
and Applications to Catalysis,Crooks,Richard M.; Zhao,Mingqi; Sun,Li;
Chechik,Victor; Yeung,Lee K,Department of Chemistry,Texas AM University,
College Station,TX,USA,Accounts of Chemical Research (2001),34(3),
181-190,CODEN,ACHRE4 ISSN,0001-4842,Journal; General Review
written in English,CAN 134:168789 AN 2000:887031 CAPLUS
Abstract
A review with 55 refs,that reports the synthesis and characterization of
dendrimer-encapsulated metal nanoparticles and their applications to catalysis,
These materials are prepd,by sequestering metal ions within dendrimers followed
by chem,redn,to yield the corresponding zerovalent metal nanoparticle,The size
of such particles depends on the no,of metal ions initially loaded into the
dendrimer,Intradendrimer hydrogenation and carbon-carbon coupling reactions
in water,org,solvents,biphasic fluorous/org,solvents,and supercrit,CO2 are also
described,
Web of Science Record:
Dendrimer-encapsulated metal nanoparticles,Synthesis,characterization,and applications
to catalysis
Crooks RM,Zhao MQ,Sun L,Chechik V,Yeung LK
ACCOUNTS OF CHEMICAL RESEARCH
34 (3),181-190 MAR 2001
Document type,Review Language,English Cited References,53 Times Cited,61
Abstract:
This Account reports the synthesis and characterization of dendrimer-encapsulated metal
nanoparticles and their applications to catalysis,These materials are prepared by sequestering
metal ions within dendrimers followed by chemical reduction to yield the corresponding
zerovalent metal nanoparticle,The size of such particles depends on the number of metal ions
initially loaded into the dendrimer,Intradendrimer hydrogenation and carbon-carbon coupling
reactions in water,organic solvents,biphasic fluorous/organic solvents,and supercritical CO2 are
also described,
KeyWords Plus:
SUPERCRITICAL CARBON-DIOXIDE,SURFACE-CONFINED MONOLAYERS,PHASE
PROBE MOLECULES,POLY(AMIDOAMINE) DENDRIMERS,STARBURST
DENDRIMERS,GOLD,WATER,NANOCLUSTERS,TEMPLATE,ELECTROCHEMISTRY
Addresses:
Crooks RM,Texas A&M Univ,Dept Chem,POB 30012,College Stn,TX 77842 USA
Texas A&M Univ,Dept Chem,College Stn,TX 77842 USA
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Save Search/Results
?COMPENDEX (OVID)
? Run Saved Search/Save Search
History/Delete Search
?SciFinder Scholar (CAS)
? Save only to computer drives with a,$” sign!!
?Web Of Science (ISI)
? Mark and Submit Marks
? Marked List
? Save Search/Run saved search
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Full Text?
?COMPENDEX (OVID)
? No full text available from the database
? Link to Purdue catalog,can link to full text
then
?SciFinder Scholar (CAS)
? Click the computer icon
? Choose the purple colored options
?Web Of Science (ISI)
? Selected full text available
?Double check in Purdue Catalog!!
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Full Text?
All full text articles
Full text journal articles
available through
Purdue’s subscription
Full text articles that
covers in the database
The full text articles you can get if
you only check the full text links in
the database
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Comparing Results of Example One
?Total review articles found 25.
? 13 (52%)in SciFinder Scholar
? 13 (52%) in Web of Science
? 1 (4%) overlap in both
? 0 in Compendex
?Citing papers for Crooks,RM,Zhao MQ,et al,
Accounts of Chemical Research 34(3),181-190
? Total found 68
? 63 (93%) in Web of Science
? 57 (84%) in SciFinder Scholar
? 52 (83%) overlap in both
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
More on Cited Reference Search
?Web of Science also has a separate Cited
Reference Search screen,Sometimes you
will pick up more cited references for an
article.
?C.D,Nobes and A,Hall,published in Cell,
Volume 81 (1) 53-62,7 April 1995
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example Two
?Find Prof,Lee’s publication in recent years
? SciFinder Scholar
?Author search,Lee Gil,choose all possible entries
?Refine by Databases (CAplus only)
?Analyze by Company/Organization
?Found 5 publications from Purdue
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example Two
?Find Prof,Lee’s publication in recent years
? Web of Science
?Search Author,Lee GU and Address,Purdue
?Got 8 results
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Example Two
?Find Prof,Lee’s publication in recent years
? Compendex
?Author search of Lee G or Lee G U or Lee Gil or Lee
Gil U
?Combine with Institution search,purdue -> 0 (!!)
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Conclusion
For a same search …
?The search strategies are different
among three databases
?The retrieved results are quite
dissimilar
?Even when searching in one database,
various approaches will retrieve
diverse results
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Conclusion
That means to do a comprehensive literature
search …
? Consult as many resources as possible
(including,the Web”,your advisor,librarians)
? Search critically,Use various combinations of
search terms and search strategies as
necessary
? Learn while you are searching,Adjust your
searches accordingly
? Search independently and consistently
? Manage your search results by using the tool
from the databases
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
A Few More Words
?You can not find everything on the
web
?Always think what you might miss by
consulting to one source
?E-journals are NOT free,so are the
databases you use in the library
?Science and technology didn’t start
from 1907,or 1977,or 1986.
Mellon Library of Chemistry
Purdue University Libraries
chemlib@purdue.edu
Spring 2003
Question Time