摘要:
A positive-working lithographic printing plate precursor includes a coating optimized for producing a minimum extent of ablation when exposed to heat and/or light. The coating includes an infrared absorbing agent which contains a structural element according to Formula I: wherein A represents —S—R1 wherein R1 represents an optionally substituted alkyl, aralkyl, alkaryl, cycloalkyl, alkenyl, alkynyl, aryl, or heteroaryl group, and/or combinations thereof; and Q=—CHR′—CHR″—, —CR′═CR″— or —CHR′—CHR″—CHR′″— and R′, R″ and R′″ independently represent hydrogen, an alkyl, cycloalkyl, aralkyl, alkaryl, aryl or heteroaryl group, or R′ and R″ or R″ and R′″ form together a cyclic structure.
摘要:
Disclosed is a dye-sensitized solar cell which includes a working electrode and a counter electrode facing each other with an electrolyte layer therebetween, the working electrode having a dye-supporting metal oxide electrode composed of a metal oxide layer having a dye supported thereon. The dye contains a cyanine dye, and the electrolyte of the electrolyte layer contains a cobalt-based electrolyte. It is preferred to use at least one cyanine dye represented by general formula (1) as the cyanine dye. Anq− represents a q-valent anion, wherein q represents 1 or 2, and p represents a coefficient for maintaining overall charge neutrality.
摘要:
The invention provides a novel class of cyanine dyes that are functionalized with a linker moiety that facilitates their conjugation to other species and substituent groups which increase the water-solubility, and optimize the optical properties of the dyes. Also provided are conjugates of the dyes, methods of using the dyes and their conjugates and kits including the dyes and their conjugates.
摘要:
The invention provides a novel class of scaffold-based labeled polymerase enzyme substrates. The polymerase enzyme substrates have a multivalent core or scaffold to which is attached fluorescent dye moieties and nucleoside phosphate moities. The polymerase enzyme substrates have multiple fluorescent dye moities and/or multiple nucleoside phosphate moieties. Preferred multivalent cores comprise trifunctional six membered aromatic moities. The invention also provides for sequencing methods and kits with scaffold-based labeled polymerase enzyme substrates.
摘要:
A compound in the form of a metallized tetrpyrollic photosensizer linked to a fluorescent dye where the photosensitizer (PS), is linked by a structure that does not have detrimental radiation emmitance or absorbing characteristics, to a fluorophore, usually a cyanine dye (CD). The photosensitizer in accordance the invention is a metallized analog of porphyrins, chlorins, purpurinimides, bacterio pupurinimides, phthalocyanines, expanded porphyrins, benzoporphyrin derivatives and purpurins. The fluorophore is usually a cyanine dye with variable substituents. And, A method for determining effectiveness of PDT by comparing proportion of STAT-3 monomer with crosslinked STAT-3 dimer after PDT where the relative proportion of STAT-3 monomer to crosslinked STAT-3 directly correlates to efficacy of the PDT.
摘要:
A family of three 8-alkyl boron dipyrromethenes 1, 2, and 3 has been prepared. These compounds are characterized by emission in the green region of the electromagnetic radiation spectrum and exhibit an almost double laser efficiency than other commercial dyes and much greater photostability. The 8-alkyl boron dipyrromethenes are prepared by catalytic hydrogenation (reduction) of the corresponding 8-alkenyl boron dipyrromethenes, which are obtained by Liebeskind-Srogl coupling of thiomethylboron dipyrromethene with an alkenyl boronic acid.
摘要:
Dyes and photoluminescent compounds based on polymethine dyes that contain at least one alkyl-phosphonate or substituted alkyl-phosphonate group, including the synthetic precursors, methods of synthesis, and applications thereof. Certain embodiments include heterocyclic ring systems and polymethine linkage are selected such that the resulting polymethine dye is a cyanine dye, a merocyanine dye, or a styryl dye.
摘要:
A radioactive isotope-labeled dye compound represented by the following general formula (I): wherein R1 and R2 represent a substituent, R3 to R6 represent a substituted or unsubstituted alkyl group; R7 and R8 represent a substituted or unsubstituted alkyl group; L1 to L3 represent a substituted or unsubstituted methine group; r represents an integer of 0 to 3; P and Q represent 123I, 124I, 125I, 131I or 18F; M represents hydrogen atom, Na, or K; and m and n represent an integer of 0 to 2.
摘要:
A near-infrared-ray absorbing material which contains a cyanine compound represented by general formula (I), shows a narrow peak of light absorption in the range of wavelengths of 800-1,000 nm, and has excellent light resistance. In formula (I), R1 to R4, Y1, and Y2 each represents a hydrogen atom, a group of formula (II) or (II′), etc., and Anq− represents a q-valent anion, provided that at least R1 is a group of formula (II) or (II') or Anq− is an ion of formula (III); R11 to R13 each represents a hydrogen atom, hydroxy, etc.; and Z1 and Z2 each represents a C1-10 alkyl, etc. In formula (II′), the bond between G′ and T′ is a double bond or a conjugated double bond; G′ represents a carbon atom; T′ represents a carbon atom or a nitrogen atom; the ring including G′ and T′ represents a 6-membered ring, etc.; w′ is 0-4; and R01′ represents a hydrogen atom, hydroxy, etc. In formula (III), R5 and R6 each represents a C1-8 haloalkyl.
摘要:
A fluorescent probe which specifically and efficiently traps nitrogen monoxide, zinc ion etc. to emit fluorescence is provided.A compound represented by the following general formula (I): [wherein R1 and R2 represent hydrogen atom, or a group represented by the following formula (A): (wherein X1 to X4 represent hydrogen atom, an alkyl group, or a protective group for amino group, and m and n represent 0 or 1); R3 and R4 represent hydrogen atom, a C1-6 alkyl group, or a C1-6 alkoxy group; R5 to R12 represent hydrogen atom, sulfo group, phospho group, a halogen atom, or a C1-6 alkyl group; R13 and R14 represent a C1-18 alkyl group; Z1 represents oxygen atom, sulfur atom, or —N(R15)— (wherein R15 represents hydrogen atom, or a C1-6 alkyl group); Y1 and Y2 represent —C(═O)—, —C(═S)—, or —C(R16)(R17) (wherein R16 and R17 represent a C1-6 alkyl group); and M− represents a counter ion in a number required for neutralizing the charge].