Fluorescence probes for evaluating chain solvation in network polymers. An analysis of the solvatochromic shift of the dansyl probe in macroporous styrene-divinylbenzene and styrene-diisopropenylbenzene copolymers

Shea, Kenneth J.; Sasaki, Daisuke; Stoddard, G. J.

doi:10.1021/ma00194a037

Cited by 74 publications

(39 citation statements)

References 2 publications

(2 reference statements)

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“…28 For example, dansyl dye has been used to monitor solvent amount and interaction in the cross-linked polystyrene matrix. 29 By placing different dyes in either PFSAc or PDBFS, we hoped to understand more about the specific interactions of these polymer matrixes with different functional groups on guest molecules. Thus, these fluorescent dyes served as binding species and "reporters" about binding interactions.…”

Section: Resultsmentioning

confidence: 99%

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Functional Imaging with Chemically Amplified Resists and Organic Molecules

Vekselman

Zhang

Darling³

1997

Chem. Mater.

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Chemically amplified resists were tested for preparing universal templates to bind various organic species in micron-scale patterns (functional images). UV exposure and heating of a poly(di-tert-butyl fumarate-co-styrene):onium salt resist produced alternating areas of nonpolar ester and polar acid/anhydride polymers. Various compounds that were fluorescent dyes or amines could then be placed selectively either into or onto exposed or nonexposed areas, according to the nature of solvents and binding species. The ease and extent of immobilization were found to depend on (i) resist composition, (ii) matrix wettability and permeability by a solvent, and (iii) covalent, ionic, dipole-dipole, or other sorbate-matrix binding interactions.

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Section: Resultsmentioning

confidence: 99%

“…5) that is conjugated to the dansyl's electron system, which would have caused complete quenching of the dansyl fluorescense. 29 Thus, this dye can directly report polarity alteration of a resist matrix, irrespective of any change in its pH.…”

Section: Resultsmentioning

confidence: 99%

Functional Imaging with Chemically Amplified Resists and Organic Molecules

Vekselman

Zhang

Darling³

1997

Chem. Mater.

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“…The latter is presented because some regions of MIP are highly cross-linked and therefore, the insertion/accessibility to them is limited. Another possible scenario is that in many cases, the template molecule does not present enough solubility in the porogen and therefore, cannot participate in interactions with the cavity of MIP [46,47]. The results from the above are not simple: (i) the most possible is a reduction of the total number of cavities suitable for rebinding ( Figure 3); (ii) the template can be "escaped" during the last step of elution mainly in MIPs used in columns for solid phase extraction [48] or during analysis [49].…”

Section: Limitationsmentioning

confidence: 99%

New Biosorbent Materials: Selectivity and Bioengineering Insights

Kyzas

Matis

2014

Processes

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Many researchers have studied the biosorption of different pollutants. However, a quite limited number of works focus on selectivity, which may be characterized as specific property for each biosorbent. Two main criteria need to be adopted for the selection and synthesis of modern biosorbents, such as their rebinding capacity and selectivity for only one target, molecule, ion, etc. Selective biosorption could be achieved using in synthesis an innovative technique termed molecular imprinting; the idea applied through specific polymers (Molecular Imprinted Polymers (MIPs)) was used in many fields, mainly analytical. In the present work, also isotherm and kinetic models were reviewed highlighting some crucial parameters, which possibly affect selectivity. A critical analysis of the biosorption insights for biosorbents, mostly selective, describes their characteristics, advantages and limitations, and discusses various bioengineering mechanisms involved.

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“…Since the process requires covalent attachment, the template must be prefabricated into a polymerizable derivative of the intended target molecule. Classically, this preorganization approach has utilized template-monomer complexes formed by carboxylic ester linkages, boronate esters, ether linkages, imines, and ketal bonds, among others [53,58,59]. Despite the limitation in the functional groups that can be imprinted using the preorganization approach, effective MIP designs have demonstrated highly selective molecular recognition capabilities [60].…”

Section: Polymer Matrix Designmentioning

confidence: 99%

Biomimetic Molecular Recognition Elements for Chemical Sensing

Jaworski

2012

Biomimetic Approaches for Biomaterials Development

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Fluorescence probes for evaluating chain solvation in network polymers. An analysis of the solvatochromic shift of the dansyl probe in macroporous styrene-divinylbenzene and styrene-diisopropenylbenzene copolymers

Cited by 74 publications

References 2 publications

Functional Imaging with Chemically Amplified Resists and Organic Molecules

Functional Imaging with Chemically Amplified Resists and Organic Molecules

New Biosorbent Materials: Selectivity and Bioengineering Insights

Biomimetic Molecular Recognition Elements for Chemical Sensing

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