Abstract:
:Directed transport of biological species across the surface of a substrate is essential for realizing lab-on-chip technologies. Approaches that utilize localized magnetic fields to manipulate magnetic particles carrying biological entities are attractive owing to their sensitivity, selectivity, and minimally disruptive impact on biomaterials. Magnetic domain walls in magnetic tracks produce strong localized fields and can be used to capture, transport, and detect individual superparamagnetic microbeads. The dynamics of magnetic microbead transport by domain walls has been well studied. However, demonstration of more complex functions such as selective motion and sorting using continuously driven domain walls in contiguous magnetic tracks is lacking. Here, a junction architecture is introduced that allows for branching networks in which superparamagnetic microbeads can be routed along dynamically-selected paths by a combination of rotating in-plane field for translation, and a pulsed out-of-plane field for path selection. Moreover, experiments and modeling show that the select-field amplitude is bead-size dependent, which allows for digital sorting of multiple bead populations using automated field sequences. This work provides a simple means to implement complex routing networks and selective transport functionalities in chip-based devices using magnetic domain wall conduits.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Rapoport E,Beach GSDdoi
10.1038/s41598-017-10149-9subject
Has Abstractpub_date
2017-08-31 00:00:00pages
10139issue
1issn
2045-2322pii
10.1038/s41598-017-10149-9journal_volume
7pub_type
杂志文章abstract::Pseudomonas aeruginosa is a highly invasive human pathogen in spite of the absence of classical host specific virulence factors. Virulence factors regulated by quorum sensing (QS) in P. aeruginosa cause acute infections to shift to chronic diseases. Several small regulatory RNAs (sRNAs) mediate fine-tuning of bacteria...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-36488-9
更新日期:2019-01-23 00:00:00
abstract::Plant cis-elements play important roles in global regulation of gene expression. Based on microarray data from rice flag leaves during early senescence, we identified W-box and G-box cis-elements as positive regulators of senescence in the important rice variety Minghui 63. Both cis-elements were bound by leaf senesce...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep20881
更新日期:2016-02-11 00:00:00
abstract::Recent experimental work in the field of synthetic protocell biology has shown that prebiotic vesicles are able to 'steal' lipids from each other. This phenomenon is driven purely by asymmetries in the physical state or composition of the vesicle membranes, and, when lipid resource is limited, translates directly into...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05675
更新日期:2014-07-14 00:00:00
abstract::In vertebrates, growth hormone/insulin-like growth factor (GH/IGF) axis signaling plays a critical role in regulating somatic growth. Understanding the direct upstream regulators of GH/IGF axis remains a major challenge. Our studies of the zebrafish reveal that the conserved miR-200 family members are critical regulat...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep15906
更新日期:2015-10-28 00:00:00
abstract::A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper. ...
journal_title:Scientific reports
pub_type: 已发布勘误
doi:10.1038/s41598-019-39693-2
更新日期:2019-04-17 00:00:00
abstract::This corrects the article DOI: 10.1038/srep18803. ...
journal_title:Scientific reports
pub_type: 已发布勘误
doi:10.1038/srep46987
更新日期:2018-05-22 00:00:00
abstract::One procedure widely used to detect the velocity of a moving object is by using the Doppler effect. This is the perceived change in frequency of a wave caused by the relative motion between the emitter and the detector, or between the detector and a reflecting target. The relative movement, in turn, generates a time-v...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep02815
更新日期:2013-10-02 00:00:00
abstract::Wolfram syndrome (WS) is a rare neurodegenerative disorder that is mainly characterized by diabetes mellitus, optic nerve atrophy, deafness, and progressive brainstem degeneration. Treatment with GLP-1 receptor agonists has shown a promising anti-diabetic effect in WS treatment in both animal models and in human patie...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-52295-2
更新日期:2019-10-31 00:00:00
abstract::The microtubule cytoskeleton is composed of α-tubulin and β-tubulin heterodimers, and it serves to regulate the shape, motility, and division of a cell. Post-translational modifications including acetylation are closely associated with the functional aspects of the microtubule, involving in a number of pathological di...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep27775
更新日期:2016-06-08 00:00:00
abstract::The physiologic response to tobacco smoke can be measured by gene-expression profiling of the airway epithelium. Temporal resolution of kinetics of gene-expression alterations upon smoking-cessation might delineate distinct biological processes that are activated during recovery from tobacco smoke exposure. Using whol...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-43295-3
更新日期:2019-05-06 00:00:00
abstract::Innate immunity is induced when pathogen-associated molecular patterns (PAMPs) bind host pattern recognition receptors (PRRs). Polyinosinic:polycytidylic acid [poly(I:C)] is a synthetic analogue of viral dsRNA that acts as a PAMP, inducing type I interferons (IFNs) in vertebrates. In the present study, the immunostimu...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-49931-2
更新日期:2019-09-20 00:00:00
abstract::The GntR family transcription regulator HpaR1 identified from Xanthomonas campestris pv. campestris has been previously shown to positively regulate the genes responsible for hypersensitive reaction and pathogenicity and to autorepress its own expression. Here, we demonstrated that HpaR1 is a global regulator that pos...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep19862
更新日期:2016-01-28 00:00:00
abstract::Plasmonics has established itself as a branch of physics which promises to revolutionize data processing, improve photovoltaics, and increase sensitivity of bio-detection. A widespread use of plasmonic devices is notably hindered by high losses and the absence of stable and inexpensive metal films suitable for plasmon...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05517
更新日期:2014-07-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons (PAHs) pollutions often occur in marine and other saline environment, largely due to anthropogenic activities. However, study of the PAHs-degradation genotypes in halophiles is limited, compared with the mesophilic terrestrial PAHs degraders. In this study, a bacterial consortium (CY-1...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-12979-z
更新日期:2017-10-02 00:00:00
abstract::Algicidal microbes could effectively remove the harmful algae from the waters. In this study, we were concerned with the ecological influence of an algicide extracted from Streptomyces alboflavus RPS, which could completely lyse the Phaeocystis globosa cells within two days. In microcosms, 4 μg/mL of the microbial alg...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep20081
更新日期:2016-02-05 00:00:00
abstract::The programmed induction of meiotic DNA double-strand breaks (DSBs) by the evolutionarily conserved SPO-11 protein, which is structurally related to archaeal Topo VIA topoisomerases, triggers meiotic recombination. Identification of several meiosis-specific factors that are required for SPO-11-mediated DSB formation r...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-02641-z
更新日期:2017-05-24 00:00:00
abstract::Semen fertilizing potential is dependent upon the morphological, functional and molecular attributes of sperm. Sperm microRNAs (miRNAs) were recently shown to hold promise regarding their association with different fertility phenotypes. However, their role in fertility regulation remains to be determined. We postulate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46775-8
更新日期:2019-07-17 00:00:00
abstract::Rapid dilation of retinal vessels in response to flickering light (functional hyperemia) is a well-known autoregulatory response driven by increased neural activity in the inner retina. Little is known about flicker-induced changes of activity of retinal neurons themselves. We non-invasively investigated flicker-induc...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-54930-4
更新日期:2019-12-05 00:00:00
abstract::Pre-shared non-local entanglement dramatically simplifies and improves the performance of quantum error correction via entanglement-assisted quantum error-correcting codes (EAQECCs). However, even considering the noise in quantum communication only, the non-local sharing of a perfectly entangled pair is technically im...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep07203
更新日期:2014-11-26 00:00:00
abstract::Grassland degradation due to overgrazing is common in many areas of the world. This study analyzed the potential of the stable carbon isotope (δ(13)C) value as a structural microcosmic index to monitor processes of grassland degradation. The δ(13)C values of plant leaves, roots and soils in non-grazed (NG) and over-gr...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep31399
更新日期:2016-08-16 00:00:00
abstract::Intuition and insight can be deployed on the same continuum. Intuition is the unconscious ability to create links between information; insight is a process by which a sudden comprehension and resolution of a situation arises (i.e. euréka). In the present study, real and virtual environments were used to trigger intuit...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-021-81532-w
更新日期:2021-01-21 00:00:00
abstract::The beetle Homalinotus depressus (Coleoptera: Curculionidae) is a major pest of coconuts in the Northern region of Brazil, for which environmentally friendly methods of control are desired. Behavioral responses of H. depressus to airborne volatile extracts from conspecifics suggested the presence of a male-produced ag...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-37156-8
更新日期:2019-01-28 00:00:00
abstract::In recent years, numerous methods have emerged for the synthesis of trifluoromethylated arenes based on the late-stage introduction of a trifluoromethyl group onto an aryl ring. In sharp comparison, the synthesis of trifluoromethylated arenes based on the pre-introduction of a trifluoromethyl group onto an "aromatic t...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep26957
更新日期:2016-06-01 00:00:00
abstract::Telomere length (TL) is linked to various age-related diseases, but little is known about telomeres in gestational diabetes mellitus (GDM). We surveyed 509 subjects (113 GDM patients and 396 frequency matched controls) in Nanjing Drum Tower Hospital, Jiangsu province of eastern China. Relative telomere length (RTL) of...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-44968-9
更新日期:2019-06-11 00:00:00
abstract::Gene targeting in embryonic stem cells (ESCs) has become the principal technology for generating knockout models. Although numerous studies have predicted that the disruption of p53 leads to increased developmental anomalies and malignancies, most p53 knockout mice develop normally. Therefore, the role of p53 in anima...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep00945
更新日期:2012-01-01 00:00:00
abstract::Under specific reaction conditions, levansucrase from Bacillus subtilis (SacB) catalyzes the synthesis of a low molecular weight levan through the non-processive elongation of a great number of intermediates. To deepen understanding of the polymer elongation mechanism, we conducted a meticulous examination of the fruc...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-32872-7
更新日期:2018-10-09 00:00:00
abstract::In patients with atherosclerotic cardiovascular disease (ASCVD) under statin treatment, the influence of on-treatment level of high-density lipoprotein cholesterol (HDL-C) on cardiovascular (CV) events is controversial. Statin-treated patients were selected from the Taiwanese Secondary Prevention for patients with Ath...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-78828-8
更新日期:2020-12-14 00:00:00
abstract::We assessed the association between depression status and prevalent and incident type 2 diabetes (T2D) as well as the interaction between depression and a genetic risk score (GS) based on 20 T2D single-nucleotide polymorphisms (SNPs) in a multi-ethnic longitudinal study. We studied 17,375 participants at risk for dysg...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-01406-y
更新日期:2017-05-09 00:00:00
abstract::The peptide nociceptin/orphanin FQ (N/OFQ) and the N/OFQ receptor (NOP) constitute a neuropeptidergic system that modulates various biological functions and is currently targeted for the generation of innovative drugs. In the present study dimeric NOP receptor ligands with spacers of different lengths were generated u...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep45817
更新日期:2017-04-06 00:00:00
abstract::Strenuous exercise increases circulating cell free DNA (cfDNA) and stimulates blood phagocytes to generate reactive oxygen species (ROS) which may induce DNA strand breaks. We tested whether: (A) elevated cfDNA in response to three repeated bouts of exhaustive exercise has decreased integrity; (B) each bout of exercis...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-52409-w
更新日期:2019-11-04 00:00:00