Abstract:
:During shadowing, a "cap" of metal develops on small particles. This cap increases apparent particle with (measured normal to the shadowing direction) by an extent which cannot be predetermined. The extent of this increase in particle size (here defined as the "cap," X) is estimated in the present method by using opposite (180 degrees sample rotation) bidirectional shadowing. It is argued that the bidirectional cap is the sum of the two unidirectional caps, and therefore that X = 2A - (B + C), where A is the mean bidirectionally shadowed particle size, and B and C are the two mean unidirectionally shadowed particle sizes. As a validation of the method, the mean diameter of air-dried ferritin was estimated and the results appear to confirm the hypothesis (mean diameter by present method, 10.7 +/- 0.2 nm; mean diameter by previous methods, 10.89 nm).
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Willison JHdoi
10.1139/m85-114subject
Has Abstractpub_date
1985-07-01 00:00:00pages
604-7issue
7eissn
0008-4166issn
1480-3275journal_volume
31pub_type
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
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journal_title:Canadian journal of microbiology
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更新日期:1979-02-01 00:00:00
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