Results 81 to 90 of about 53,634 (224)

Quantitative Viral Community DNA Analysis Reveals the Dominance of Single-Stranded DNA Viruses in Offshore Upper Bathyal Sediment from Tohoku, Japan

Frontiers in Microbiology, 2018
Previous studies on marine environmental virology have primarily focused on double-stranded DNA (dsDNA) viruses; however, it has recently been suggested that single-stranded DNA (ssDNA) viruses are more abundant in marine ecosystems.
Mitsuhiro Yoshida, Tomohiro Mochizuki, Tomohiro Mochizuki, Syun-Ichi Urayama, Yukari Yoshida-Takashima, Shinro Nishi, Miho Hirai, Hidetaka Nomaki, Hidetaka Nomaki, Yoshihiro Takaki, Takuro Nunoura, Ken Takai   +11 more
doaj   +1 more source

An Integrated DNA Nanoprobe for Intranuclear Imaging and in Situ Profiling of OGG1 Activity

Advanced Science, EarlyView.
The TP‐SA nanoprobe, integrating an AS1411 aptamer for nuclear delivery and a FRET array for signal amplification, enables real‐time tracking of nuclear OGG1 activity. It reveals cell‐line‐specific basal OGG1 levels and shows clinical promise using pneumonia patients’ lavage fluid.
Mingzhu Zhao, Xuemei Sun, He Li, Bangming Wang, Mengting Pan, Zhen Ma, Rong‐Mei Kong, Weiheng Kong, Yan Zhao, Fengli Qu   +9 more
wiley   +1 more source

Machine Learning‐Enhanced Ultrasensitive Immuno‐CRISPR Array Facilitates Early Diagnosis of Alzheimer's Disease by Detecting Multiple Plasma Biomarkers

Advanced Science, EarlyView.
This work presents a CRISPR‐based, ultrasensitive multiplex protein detection array capable of simultaneously analyzing six plasma biomarkers associated with Alzheimer's disease (AD). By integrating antibody‐mediated signal transduction, recombinase polymerase amplification, and spatially encoded CRISPR‐Cas12a, the system achieves detection sensitivity
Liding Zhang, Changwen Yang, Qian Yao, Xuewei Du, Shuai Ding, Yaoqiang Shi, Can Sheng, Ming Wang, Ying Han, Haiming Luo   +9 more
wiley   +1 more source

Early Infection for Mass Production of Artificial Single-Stranded DNA with Escherichia coli

Applied Sciences
Large quantities of artificial single-stranded DNA (ssDNA) with user-defined sequences are increasingly required to exploit the potential of DNA nanotechnology.
Nathalie Hafner, Nazanin Nematzadeh Somehsaraei, Maximilian N. Honemann, Hendrik Dietz, Dirk Weuster-Botz   +4 more
doaj   +1 more source

AI‐Assisted Digital Single‐Molecule Activity Tracker for Decoupling Intrinsic Heterogeneity from Photo‐Oxidative Damage in High‐Photon‐Flux Enzymology

Advanced Science, EarlyView.
Employing a digital single‐molecule activity tracker (dSMAT), this research demonstrates that high‐photon‐flux irradiation drives progressive oxidative scarring in polymerases. Unlike simple thermal denaturation, real‐time kinetic tracking dynamically visualizes enzymes degrading into multiple impaired subpopulations.
Anran Zheng, Qi Yang, Jinze Li, Fuqiang Ma, Xuefeng Wang, Zhen Guo, Chuanyu Li, Dongshu Li, Jia Yao, Zhiqi Zhang, Wei Zhang, Lianqun Zhou   +11 more
wiley   +1 more source

Nonviral Gold Nanoparticle‐Mediated Delivery of CRISPR‐Cas9 Ribonucleoprotein and Long DNA Transgenes Into Primary Blood Cells

Advanced NanoBiomed Research, EarlyView.
CRISPR/Cas9 has revolutionized the field of gene therapy, but delivery remains an outstanding issue. We propose a nonviral gold‐nanoparticle platform for co‐delivery of CRISPR/Cas9 ribonucleoprotein and long 2.1 kilobase dsDNA transgene constructs. This CRISPR‐AuNP is inexpensive to produce and mediate gene editing and DNA delivery in T cells and CD34+
Rachel A. Cunningham, Karthikeya S. V. Gottimukkala, Daniel D. Lane, Katrina Poljakov, Patricia Lipson, Mark R. Enstrom, Alessandro Rizzi, Aude G. Chapuis, Jennifer E. Adair   +8 more
wiley   +1 more source

Interdigitale Aptamer‐Sensoren mit komplementären Messkanälen zur schnellen Detektion kleiner Moleküle in Biofluiden

Angewandte Chemie, EarlyView.
Ein elektrochemischer Aptamer‐Sensorchip nutzt Interdigitalelektroden mit selektiver Monoschicht‐Funktionalisierung, um Dopamin und Cortisol mittels robuster komplementärer „Signal‐Off/On“‐Antworten zu detektieren. Diese Dual‐Channel‐Signalumwandlung ermöglicht eine schnelle Detektion innerhalb von 5–30 min bei geringen Probenvolumina in künstlicher ...
Senyao Wang, Ali Elmorsy, Defne Tüzün, Lilly Schmidt, Sebastian Freko, Lukas Hiendlmeier, Chen Wang, Alonso Ingar Romero, George Al Boustani, Hu Peng, Berna Özkale, Nako Nakatsuka, Bernhard Wolfrum   +12 more
wiley   +1 more source

Strategies and considerations for the generation of ssDNA-Based HDR templates for CRISPR-based genome editing

BMC Genomics
The usefulness of genome editing lies in the ability to induce any desirable change in the target genome. It is most efficiently achieved using ssDNA (single-stranded DNA) as the HDR template and CRISPR-Cas9 targeted DNA breaks.
Harshitha Golagana Velangani, Aditi Ghosh, Sudiksha Singh, Shashi Kiran   +3 more
doaj   +1 more source

Selection and targeting of EpCAM protein by ssDNA aptamer

PLOS ONE, 2017
Aptamers are molecules that reveal highly complex and refined molecular recognition properties. These molecules are capable of binding with high affinity and selectivity to targets, ranging from small molecules to whole living cells. Several aptamers have been selected for targeting cellular proteins and they have also used in developing therapeutics ...
Walhan Alshaer, Nida Ababneh, Mamon Hatmal, Heba Izmirli, Moujab Choukeife, Alaa Shraim, Nour Sharar, Aya Abu-Shiekah, Fadwa Odeh, Abeer Al Bawab, Abdalla Awidi, Said Ismail   +11 more
openaire   +4 more sources

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

Angewandte Chemie International Edition, EarlyView.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source