Abstract：
:Competition-enhanced ligand screening (CompELS) was employed to rapidly screen through large DNA libraries to identify single-stranded, oligonucleotide-based ligands called aptamers that bind to a nonbiological target. This previously unreported aptamer screening approach involves the repeated introduction of unenriched random sequence populations during the biopanning process, but avoids iterative elution and polymerase chain reaction (PCR) amplification steps inherent to traditional SELEX (systematic evolution of ligands by exponential enrichment) screening. In this study, 25 aptamers were identified against a gold surface via CompELS and evaluated to identify patterns in primary structures and predicted secondary structures. Following a final one-round competition experiment with the 25 identified aptamers, one particular aptamer sequence (1N) emerged as the most competitive adsorbate species for the gold substrate. Binding analysis indicated at least an order of magnitude difference in the binding affinity of 1N ( Kd = 5.6 × 10-10 M) compared to five other high affinity aptamer candidates ( Kd = 10-8-10-9 M) from identical secondary structure families. Collectively, these studies introduce a rapid, reliable screening and ranking platform along with a classification scheme well-suited for identifying and characterizing aptamers for nonbiological as well as biological targets.
journal_name
ACS Comb Scijournal_title
ACS combinatorial scienceauthors
Tapp MJN,Slocik JM,Dennis PB,Naik RR,Milam VTdoi
10.1021/acscombsci.8b00048subject
Has Abstractpub_date
2018-10-08 00:00:00pages
585-593issue
10eissn
2156-8952issn
2156-8944journal_volume
20pub_type
杂志文章abstract：:The development of a scanning reactor for planar catalysts is presented here. With respect to other existing models, this reactor is able to scan catalysts even with low turnover frequencies with a minimum sensed circular area of approximately 6 mm in diameter. The downstream gas analysis is performed with a quaprupol...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.5b00103
更新日期：2016-01-11 00:00:00
abstract：:Adleman's illustration of molecular computing using DNA paved the way toward an entirely new direction of computing (Adleman, L. M. Science 1994, 266, 1021). The exponential time complex combinatorial problem on a traditional computer turns out to be a separation problem involving a polynomial number of steps in DNA c...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.9b00150
更新日期：2020-05-11 00:00:00
abstract：:Copolymerization of isoprene (IP) with glycidyl methacrylate (GMA) was performed under RAFT (reversible addition-fragmentation chain-transfer) polymerization conditions in a platform for high-output experimentation. Covering the range between 1 and 0.2 molar fraction of IP in the feed, four sets of reactions were carr...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.9b00110
更新日期：2019-12-09 00:00:00
abstract：:In view of the variety and complexity of thermoelectric (TE) material systems, combinatorial approaches to materials development come to the fore for identifying new promising compounds. The success of this approach is related to the availability and reliability of high-throughput characterization methods for identify...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.7b00019
更新日期：2018-01-08 00:00:00
abstract：:Optical bandgap mapping of Nb-Ti mixed oxides anodically grown on a thin film parent metallic combinatorial library was performed via variable angle spectroscopic ellipsometry (VASE). A wide Nb-Ti compositional spread ranging from Nb-90 at.% Ti to Nb-15 at.% Ti deposited by cosputtering was used for this purpose. The ...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.6b00162
更新日期：2017-02-13 00:00:00
abstract：:A combination of MACOS scale-out and ROMP-derived oligomeric triazole phosphates (OTP(n)) have been successfully utilized for the preparation of a 106-member library of triazole containing benzothiaoxazepine-1,1-dioxides. This report demonstrates the utilization of a suite of soluble OTP(n) reagents for facile (triazo...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co2001839
更新日期：2012-04-09 00:00:00
abstract：:Peptides are still difficult to synthesize when they contain sterically hindered amino acids, such as α,α-disubstituted amino acids and N-substituted amino acids. In this study, solid-phase syntheses of oligopeptides containing multiple α-aminoisobutyric acid (Aib) residues were performed in high yields by using a non...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.7b00184
更新日期：2018-03-12 00:00:00
abstract：:Unfunctionalized alkylbiphenyls were fabricated by a parallel and combinatorial synthesis using pentaerythritol as a tetrapodal soluble support for a sulfonate-based traceless multifunctional linker system. Nickel N-heterocyclic carbene-catalyzed reactions of pentaerythritol tetrakis(biphenylsulfonate)s with primary a...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co400136k
更新日期：2014-05-12 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co200027c
更新日期：2011-09-12 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.9b00123
更新日期：2019-12-09 00:00:00
abstract：:The exploration of new alloys with desirable properties has been a long-standing challenge in materials science because of the complex relationship between composition and microstructure. In this Research Article, we demonstrate a combinatorial strategy for the exploration of composition dependence of microstructure. ...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.6b00040
更新日期：2016-10-10 00:00:00
abstract：:A high throughput combinatorial synthesis utilizing inkjet printing of precursor inks was used to rapidly evaluate Bi-alloying into double perovskite oxides for enhanced visible light absorption. The fast visual screening of photo image scans of the library plates identifies 4-metal oxide compositions displaying an in...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.0c00177
更新日期：2020-12-14 00:00:00
abstract：:Solid-phase synthesis is the method of choice for peptide preparation in both research and industrial settings. The whole synthetic process is governed by the initial functionalization of the resin. Although the literature provides several methods to determine such functionalization, the addition of an Fmoc-amino acid...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.9b00154
更新日期：2019-11-11 00:00:00
abstract：:The thin film system Ti-Ni-Si was investigated using methods of combinatorial materials science. A thin film composition spread library of the system was fabricated using combinatorial magnetron sputtering. The functional properties Seebeck coefficient, electrical resistivity, and luminance were determined using high-...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.8b00181
更新日期：2019-05-13 00:00:00
abstract：:Magnetization using cheap and minimally toxic materials, such as iron oxide nanoparticles can enable easy separation of cells from culture medium and is relevant to several industrial applications. Here, we show that cell surface expression of a mutant protein that binds iron oxide can enable efficient magnetization o...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.8b00084
更新日期：2018-10-08 00:00:00
abstract：:This is a report on the early years of combinatorial materials science and technology. High-throughput technologies (HTTs) are found in life- and materials-science laboratories. Although HTTs have long been the standard in life sciences in academia as well as in industry, HTTs in materials science have become the stan...
journal_title：ACS combinatorial science
pub_type： 历史文章,杂志文章,评审
doi：10.1021/acscombsci.8b00189
更新日期：2019-06-10 00:00:00
abstract：:Preparative RP-LCMS is widely used to purify compounds from crude reaction mixtures in drug discovery today. Method development for preparative Liquid Chromatography-Mass Spectrometry (LCMS) consists of finding the right balance between speed and quality, often leading to the use of fast generic gradients (5-95% organ...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co200197b
更新日期：2012-04-09 00:00:00
abstract：:An efficient and straightforward synthetic protocol has been developed for the diversity-oriented synthesis of highly functionalized piperidines containing a Meldrum's acid moiety via pseudo five-component reaction between aromatic aldehydes, ammonium acetate, substituted β-nitrostyrenes and Meldrum's acid for the gen...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co4001502
更新日期：2014-03-10 00:00:00
abstract：:Electromanipulation and electrical characterization of cancerous cells is becoming a topic of high interest as the results reported to date demonstrate a good differentiation among various types of cells from an electrical viewpoint. Dielectrophoresis and broadband dielectric spectroscopy are complementary tools for s...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.0c00109
更新日期：2020-11-09 00:00:00
abstract：:A series of diverse polycyclic heterocycles containing spirooxindole, pyridine/thiophene, and pyrrolidine/pyrrolizidine/pyrrolothiazole rings have been synthesized through the 1,3-dipolar cycloaddition of azomethine ylides generated in situ by the condensation of dicarbonyl compounds (isatin or acenaphthenequinone) an...
journal_title：ACS combinatorial science
pub_type： 杂志文章
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更新日期：2014-09-08 00:00:00
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journal_title：ACS combinatorial science
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doi：10.1021/acscombsci.5b00091
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journal_title：ACS combinatorial science
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doi：10.1021/acscombsci.5b00186
更新日期：2016-03-14 00:00:00
abstract：:Polymer-supported N-(2-oxo-ethyl)-derivatized Ser/Thr/Cys-containing dipeptides were synthesized and subjected to acid-mediated tandem N-acylium ion cyclization-nucleophilic addition to yield tetrahydro-2H-oxazolo[3,2-a]pyrazin-5(3H)-ones. The reaction conditions and building-block combinations for stereoselective syn...
journal_title：ACS combinatorial science
pub_type： 杂志文章
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更新日期：2013-03-11 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co500091f
更新日期：2015-01-12 00:00:00
abstract：:An efficient discovery strategy by combining diversity-oriented synthesis and converging cellular screening is described. By a three-round screening process, we identified novel tricyclic pyrido[2,3-b][1,4]benzothiazepines showing potent inhibitory activity against paclitaxel-resistant cell line H460TaxR (EC50 < 1.0 μ...
journal_title：ACS combinatorial science
pub_type： 杂志文章
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更新日期：2016-05-09 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co3000506
更新日期：2012-08-13 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
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更新日期：2017-11-13 00:00:00
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journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/acscombsci.5b00001
更新日期：2015-08-10 00:00:00
abstract：:A combination of flow and batch chemistries has been successfully applied to the assembly of a series of trisubstituted drug-like pyrrolidines. This study demonstrates the efficient preparation of a focused library of these pharmaceutically important structures using microreactor technologies, as well as classical par...
journal_title：ACS combinatorial science
pub_type： 杂志文章
doi：10.1021/co2000357
更新日期：2011-07-11 00:00:00
