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Showing posts with label Nanotechnology. Show all posts
Showing posts with label Nanotechnology. Show all posts

Wednesday, 5 September 2007

Nanotechnology: A Gentle Introduction to the Next Big Idea

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By Mark A. Ratner
, Daniel Ratner

Published 2003
Prentice Hall PTR

Technology & Industrial
Arts

208 pages

ISBN 0131014005

 

Nanotechnology: A Gentle Introduction to the Next Big Idea By Mark A. Ratner, Daniel Ratner

An explanation of what Nanotechnology is all about and its business aspects written in an approachable and witty style.-- Nanotechnology's impact will reach beyond science to touch our everyday health, work, and businesses.-- Explains the federal dollars going into nanotechnology research and discusses why the NSF has estimated that it could be a $1 trillion market by 2015.This book is the technical and business overview of tomorrow's scientific breakthrough. The authors survey the scientific research and business aspects of the field, try to explain the key concepts, provide a look at current developments, and give some thoughts on where nanotechnology is likely to go in the next few years. The focus of the book is on science and technology, but business is discussed as well. The growing interest in nanotechnology by the investment community and the federal dollars going into nanotechnology are explained. Nanotechnology, or, as it is sometimes called, molecular manufacturing, is a branch of engineering that deals with the design and manufacture of extremely small electronic circuits and mechanical devices built at the molecular level of matter. Nanotechnology holds promise in the quest for ever-more-powerful computers and communications devices. But the most fascinating applications are in medical science. Nanorobots might serve as programmable antibodies. As disease-causing bacteria and viruses mutate in their endless attempts to get around medical treatments, nanorobots could be reprogrammed to selectively seek out and destroy them.

Read at Google Books

DNA and Nanotechnology

Science Daily — DNA is one of the most popular building blocks of nanotechnology and is commonly used to construct ordered nanoscale structures with controlled architectures. For the most part, DNA is looked upon as a promising building block for fabricating microelectronic circuits from the bottom up.

Now a team of researchers at Young propose the marriage of DNA self-assembly with standard microfabrication and lithography tools to form features such as nanochannels, nanowires, and nanoscale trenches. This discovery may open up new avenues for nanofabrication at dimensions not accessible by conventional optical lithography.

Read Full Story:

http://www.sciencedaily.com/releases/2007/09/070904114518.htm

Friday, 8 June 2007

Statistical Methods in Bioinformatics: An Introduction-E-Book

  • Hardcover: 588 pages
  • Publisher: Springer; 2 edition (September 30, 2005)
  • Language: English
  • ISBN-10: 0387400826

Advances in computers and biotechnology have had a profound impact on biomedical research, and as a result complex data sets can now be generated to address extremely complex biological questions. Correspondingly, advances in the statistical methods necessary to analyze such data are following closely behind the advances in data generation methods. The statistical methods required by bioinformatics present many new and difficult problems for the research community.

This book provides an introduction to some of these new methods. The main biological topics treated include sequence analysis, BLAST, microarray analysis, gene finding, and the analysis of evolutionary processes. The main statistical techniques covered include hypothesis testing and estimation, Poisson processes, Markov models and Hidden Markov models, and multiple testing methods.

The second edition features new chapters on microarray analysis and on statistical inference, including a discussion of ANOVA, and discussions of the statistical theory of motifs and methods based on the hypergeometric distribution. Much material has been clarified and reorganized.

The book is written so as to appeal to biologists and computer scientists who wish to know more about the statistical methods of the field, as well as to trained statisticians who wish to become involved with bioinformatics. The earlier chapters introduce the concepts of probability and statistics at an elementary level, but with an emphasis on material relevant to later chapters and often not covered in standard introductory texts. Later chapters should be immediately accessible to the trained statistician. Sufficient mathematical background consists of introductory courses in calculus and linear algebra. The basic biological concepts that are used are explained, or can be understood from the context, and standard mathematical concepts are summarized in an Appendix. Problems are provided at the end of each chapter allowing the reader to develop aspects of the theory outlined in the main text.

Warren J. Ewens holds the Christopher H. Brown Distinguished Professorship at the University of Pennsylvania. He is the author of two books, Population Genetics and Mathematical Population Genetics. He is a senior editor of Annals of Human Genetics and has served on the editorial boards of Theoretical Population Biology, GENETICS, Proceedings of the Royal Society B and SIAM Journal in Mathematical Biology. He is a fellow of the Royal Society and the Australian Academy of Science.

Gregory R. Grant is a senior bioinformatics researcher in the University of Pennsylvania Computational Biology and Informatics Laboratory. He obtained his Ph.D. in number theory from the University of Maryland in 1995 and his Masters in Computer Science from the University of Pennsylvania in 1999.

Comments on the First Edition. "This book would be an ideal text for a postgraduate course.[and] is equally well suited to individual study.. I would recommend the book highly" (Biometrics). "Ewens and Grant have given us a very welcome introduction to what is behind those pretty [graphical user] interfaces" (Naturwissenschaften.). "The authors do an excellent job of presenting the essence of the material without getting bogged down in mathematical details" (Journal. American Staistical. Association). "The authors have restructured classical material to a great extent and the new organization of the different topics is one of the outstanding services of the book" (Metrika).

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Saturday, 2 June 2007

Bioconjugated quantum dots for multiplexed and quantitative immunohistochemistry

Fantastic job by Yun and team..

Bioconjugated quantum dots (QDs) provide a new class of biological labels for evaluating biomolecular signatures (biomarkers) on intact cells and tissue specimens. In particular, the use of multicolor QD probes in immunohistochemistry is considered one of the most important and clinically relevant applications. At present, however, clinical applications of QD-based immunohistochemistry have achieved only limited success. A major bottleneck is the lack of robust protocols to define the key parameters and steps. Here, Yun Xing1 et al describe their recent experience, preliminary results and detailed protocols for QD-antibody conjugation, tissue specimen preparation, multicolor QD staining, image processing and biomarker quantification. The results demonstrate that bioconjugated QDs can be used for multiplexed profiling of molecular biomarkers, and ultimately for correlation with disease progression and response to therapy. In general, QD bioconjugation is completed within 1 day, and multiplexed molecular profiling takes 1-3 days depending on the number of biomarkers and QD probes used.

Full Protocol

Science Protocols