Tom Brown

Rapid and efficient DNA strand cross-linking by click chemistry (2008)

Kocalka, Petr, El-Sagheer, Afaf H., Brown, Tom

Click chemistry has been used to covalently cross-link complementary DNA strands between bases to form very stable duplexes. Several alkyne- and azide-modified uracil monomers were used to evaluate...

Characterization and use of an unprecedentedly bright and structurally non-perturbing fluorescent DNA base analogue (2008)

Sandin, Peter, Borjesson, Karl, Li, Hong, Martensson, Jerker, Brown, Tom, Wilhelmsson, L. Marcus, ...

This article presents the first evidence that the DNA base analogue 1,3-diaza-2-oxophenoxazine, tCO, is highly fluorescent, both as free nucleoside and incorporated in an arbitrary DNA structure. tCO...

Kinetic studies on the formation of DNA triplexes containing the nucleoside analogue 2 '-O-(2-aminoethyl)-5-(3-amino-1-propynyl)uridine (2008)

Rusling, David A., Broughton-Head, Victoria J., Tuck, Alex, Khairallah, Hannah, Osborne, Sadie D., Brown, Tom, ...

We have examined the kinetics of triple helix formation of oligonucleotides that contain the nucleotide analogue 2-O-(2-aminoethyl)-5-(3-amino-1-propynyl)uridine (bis-amino-U, BAU), which forms very...

One-to-one technology-enhanced learning: an opportunity for global research collaboration (2007)

Chan, Tak-Wai, Roschelle, Jeremy, Hsi, Sherry, Kinshuk, Kinshuk, Sharples, Mike, Brown, Tom, ...

Over the next 10 years, we anticipate that personal, portable, wirelessly-networked technologies will become ubiquitous in the lives of learners - indeed, in many countries, this is already a...

One-to-one technology-enhanced learning: an opportunity for global research collaboration (2007)

Chan, Tak-Wai, Roschelle, Jeremy, Hsi, Sherry, Kinshuk, Kinshuk, Sharples, Mike, Brown, Tom, ...

Over the next 10 years, we anticipate that personal, portable, wirelessly-networked technologies will become ubiquitous in the lives of learners - indeed, in many countries, this is already a...

2 '-O-dimethylaminoethoxyuridine and 5-dimethylaminopropargyl deoxyuridine for at base pair recognition in triple helices (2007)

Brennan, Lavinia, Peng, Guomei, Srinivasan, Natarajan, Fox, Keith R., Brown, Tom

The nucleoside analogues 2'-O-dimethylaminoethoxy uridine and 5-dimethylaminopropargyl deoxyuridine have been synthesised and incorporated into oligonucleotides. Their triplex-stabilising properties...

Cg base pair recognition within DNA triple helices using N-methyl-3H-pyrrolo[2,3-d]pyrimidin-2(7H)-one nucleoside analogues (2007)

Gerrard, Simon R., Srinivasan, Natarajan, Fox, Keith R., Brown, Tom

Triplex-mediated recognition of Py.Pu base pairs in DNA is a greater challenge than for Pu.Py base pairs as fewer hydrogen bonds are presented for binding in the major groove. Initial studies on...

Photoinduced crosslinking of double-helical DNA by psoralen covalently linked to a triple helix-forming oligonucleotide under near-physiological conditions (2007)

Li, Hong, Broughton-Head, Victoria J., Fox, Keith R., Brown, Tom

Stable triplexes have been generated under near-physiological conditions by the introduction of the C and T base analogues 3-methyl-2-aminopyridine-2 '-deoxyriboside and...

Synthesis of anthraquinone oligonucleotides for triplex stabilization (2007)

Zhao, Zhengyun, Peng, Guomei, Michels, Jan, Fox, Keith R., Brown, Tom

The synthesis of two anthraquinone phosphoramidites is described. In both cases the anthraquinone moiety is attached via a linker to the 5-position of a uracil base, allowing incorporation at any...

Synthesis and properties of oligonucleotides containing a cholesterol thymidine monomer (2007)

Durand, Adeline, Brown, Tom

Highly selective base-pair recognition makes DNA a suitable building block for orderly self-assembled structures. For some applications in nanotechnology DNA complexes need to be fixed onto surfaces....

Naphthalenyl- and anthracenyl-ethynyl dT analogues as base discriminating fluorescent nucleosides and intramolecular energy transfer donors in oligonucleotide probes (2007)

Xiao, Qiang, Ranasinghe, Rohan T., Tang, Adrian M.P., Brown, Tom

Fluorescent thymidine analogues functionalised in the 5-position with the moieties naphthalenylethynyl (NeT), anthracenylethynyl (AeT) and anthracenylbuta-1,3-diynyl (AeeT) have been incorporated...

Sequence effects of single base loops in intramolecular quadruplex DNA (2007)

Rachwal, Phillip A., Brown, Tom, Fox, Keith R.

We have examined the properties of intramolecular G-quadruplexes in which the G3 tracts are separated by single base loops. The most stable complex contained 1′,2′-dideoxyribose in all three...

Effect of G-tract length on the topology and stability of intramolecular DNA quadruplexes (2007)

Rachwal, Philip A., Brown, Tom, Fox, Keith R.

G-Rich sequences are known to form four-stranded structures that are based on stacks of G-quartets, and sequences with the potential to adopt these structures are common in eukaryotic genomes....

Factors that may contribute to the establishment of mobile learning in institutions – Results from a Survey (2007)

Olaf Zawacki-Richter, Tom Brown, Rhena Delport

This paper reports on a survey investigating the role that differences in expectations and perceptions of mobile learning and mobile devices play in establishing mobile learning at an educational...

Template-directed oligonucleotide strand ligation, covalent intramolecular DNA circularization and catenation using click chemistry (2007)

Kumar, Ravindra, El-Sagheer, Afaf, Tumpane, John, Lincoln, Per, Wilhelmsson, L. Marcus, Brown, Tom

The copper-catalyzed azide-alkyne cycloaddition reaction has been used for the template-mediated chemical ligation of two oligonucleotide strands, one with a 5'-alkyne and the other with a 3'-azide,...

Triplex staples: DNA double-strand cross-linking at internal and terminal sites using psoralen-containing triplex-forming oligonucleotides (2006)

Li, Hong, Broughton-Head, Victoria J., Peng, Guomei, Powers, Vicki E.C., Ovens, Matthew J., Fox, Keith R.., ...

A method has been developed to attach 4'-(hydroxymethyl)-4,5',8-trimethylpsoralen to the 5 position of thymine bases during solid-phase oligonucleotide synthesis. UV irradiation of triplex-forming...

DNA triple-helix formation at target sites containing duplex mismatches (2006)

Rusling, David A., Brown, Tom, Fox, Keith R.

We have studied the formation of DNA triple helices at target sites that contain mismatches in the duplex target. Fluorescence melting studies were used to examine a series of parallel triple helices...

DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B) (2006)

Hampshire, Andrew J., Khairallah, Hannah, Khalaf, Abedawn I., Ebrahimabadi, Abdolrasoul H., Waigh, Roger D., Suckling, Colin J., ...

We have used DNA footprinting and fluorescence melting experiments to study the sequence specific binding of an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B) to DNA....

Combining nucleoside analogues to achieve recognition of oligopurine tracts by triplex-forming oligonucleotides at physiological pH (2005)

Rusling, David A., Le Strat, Loic, Powers, Vicki E.C., Broughton-Head, Victoria J., Booth, James, Lack, Oliver, ...

We have used DNase I footprinting to examine DNA triple helix formation at a 12 base pair oligopurine · oligopyrimidine sequence, using oligonucleotides that contain combinations of...

An extra dimension in nucleic acid sequence recognition (2005)

Fox, Keith R., Brown, Tom

Introduction 312 Triple helices in DNA 312 Chemically modified TFOs 313 Further development 316 Recognition of GC base pairs 316 Recognition of TA base pairs 316 Recognition of AT base pairs 317...

Quenching of CdSe quantum dot emission, a new approach for biosensing (2005)

Melvin, Tracy, Dyadyusha, Larysa, Yin, Huabing, Jaiswal, Supriya, Baumberg, Jeremy, Booy, Frank, ...

The emission of CdSe quantum dots linked to the 5-end of a DNA sequence is efficiently quenched by hybridisation with a complementary DNA strand with a gold nanoparticle attached at the 3-end;...

Quenching of CdSe quantum dot emission, a new approach for biosensing (2005)

Melvin, Tracy, Dyadyusha, Larysa, Yin, Huabing, Jaiswal, Supriya, Baumberg, Jeremy, Booy, Frank, ...

The emission of CdSe quantum dots linked to the 5-end of a DNA sequence is efficiently quenched by hybridisation with a complementary DNA strand with a gold nanoparticle attached at the 3-end;...

Stable recognition of TA interruptions by triplex forming oligonucleotides containing a novel nucleoside (2005)

Wang, Yang, Rusling, David A., Powers, Vicki E.C., Lack, Oliver, Osborne, Sadie D., Fox, Keith R., ...

We have prepared the 2'-aminoethoxy derivative of the S nucleoside (2AES) and incorporated it into triplex-forming oligonucleotides for recognition of TA interruptions within a target oligopurine...

Four base recognition by triplex-forming oligonucleotides at physiological pH (2005)

Rusling, David.A., Powers, Vicki .E.C., Ranasinghe, Rohan .T., Wang, Yang, Osborne, Sadie .D., Brown, Tom., ...

The online version of this article has been published under an open access model. Users are entitled to use, reproduce, disseminate, or display the open access version of this article for...

DNA sequence recognition by an isopropyl substituted thiazole polyamide (2004)

James, Peter L., Merkina, Elena E., Khalaf, Abedawn I., Suckling, Colin J., Waigh, Roger D., Brown, Tom, ...

We have used DNA footprinting and fluorescence melting experiments to study the sequence-specific binding of a novel minor groove binding ligand (thiazotropsin A), containing an isopropyl substituted...

High throughput measurement of duplex, triplex and quadruplex melting curves using molecular beacons and a LightCycler (2002)

Darby, Richard A.J., Sollogoub, Matthieu, McKeen, Catherine, Brown, Lynda, Risitano, Antonina, Brown, Nicholas, ...

We have used oligonucleotides containing molecular beacons to determine melting profiles for intramolecular DNA duplexes, triplexes and quadruplexes (tetraplexes). The synthetic oligonucleotides used...

Retaining minority students at UW-Green Bay / (1993)

Brown, Tom.

Includes bibliographical references (leaves 61-63).

Characterization and use of an unprecedentedly bright and structurally non-perturbing fluorescent DNA base analogue

Sandin, Peter, Börjesson, Karl, Li, Hong, Mårtensson, Jerker, Brown, Tom, Wilhelmsson, L. Marcus, ...

This article presents the first evidence that the DNA base analogue 1,3-diaza-2-oxophenoxazine, tCO, is highly fluorescent, both as free nucleoside and incorporated in an arbitrary DNA structure. tCO...

The construction of the credible: Epistolary transformations and the origins of the business letter

Ingrid Jeacle, Tom Brown

The letter is the formal mechanism for communication in the business community. Even contemporary advances in electronic mail have not yet displaced the legitimacy invested in this form of...