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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c00241
|2 doi
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|a pubmed24n1187.xml
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|a (DE-627)NLM356335844
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|a (NLM)37130261
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Nam, Yu Ri
|e verfasserin
|4 aut
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| 245 |
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|a Distinguishing between DNA-Loaded Full and Empty Capsids of Adeno-Associated Virus with Atomic Force Microscopy Imaging
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 17.05.2023
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|a Date Revised 18.05.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Recently, miraculous therapy approaches involving adeno-associated virus (AAV) for incurable diseases such as spinal muscular atrophy and inherited retinal dysfunction have been introduced. Nonreplicative, nonpathogenic, low rates of chromosome insertional properties and the existence of neutralizing antibodies are main safety reasons why the FDA approved its use in gene delivery. To date, AAV production always results in a mixture of nontherapeutic (empty) and therapeutic (DNA-loaded) full capsids (10-98%). Such existence of empty viral particles inevitably increases viral doses to human. Thus, the rapid monitoring of empty capsids and reducing the empty-to-full ratio are critical in AAV science. However, transmission electron microscopy (TEM) is the primary tool for distinguishing between empty and full capsids, which creates a research bottleneck because of instrument accessibility and technical difficulty. Herein, we demonstrate that atomic force microscopy (AFM) can be an alternative tool to TEM. The simple, noncontact-mode imaging of AAV particles allows the distinct height difference between full capsids (∼22 nm) and empty capsids (∼16 nm). The sphere-to-ellipsoidal morphological distortion observed for empty AAV particles clearly distinguishes them from full AAV particles. Our study indicates that AFM imaging can be an extremely useful, quality-control tool in AAV particle monitoring, which is beneficial for the future development of AAV-based gene therapy
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a DNA
|2 NLM
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|a 9007-49-2
|2 NLM
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| 700 |
1 |
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|a Ju, Helen H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Jeehee
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Daiheon
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Yoojin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Sung Jin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Hong Kee
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jang, Jae-Hyung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Haeshin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 19 vom: 16. Mai, Seite 6740-6747
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:39
|g year:2023
|g number:19
|g day:16
|g month:05
|g pages:6740-6747
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|u http://dx.doi.org/10.1021/acs.langmuir.3c00241
|3 Volltext
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