(n.) Any chemical group or residue (as NO2; N2; or O2) which imparts some decided color to the compound of which it is an ingredient.
Example Sentences:
(1) F(420) is photolabile aerobically in neutral and basic solutions, whereas the acid-stable chromophore is not photolabile under these conditions.
(2) Theoretical computations are performed of the intercalative binding of the neocarzinostatin chromophore (NCS) with the double-stranded oligonucleotides d(CGCG)2, d(GCGC)2, d(TATA)2 and d(ATAT)2.
(3) The drug-picrate chromophores maximally absorb within the first minute of reaction (21 s for phenacemide, 45 s for cephalothin), after which the absorbances decrease.
(4) The chromophore of octopus rhodopsin is 11-cis retinal, linked via a protonated Schiff base to the protein backbone.
(5) These results suggest that the chromophore-protein interaction is significantly altered during the phototransformation of phytochrome.
(6) Their absorption spectra are at sufficiently long wavelength to be unobscured by cellular chromophores such as nucleotides and aromatic amin acids.
(7) Synthesis products have been identified, and three chromophores have been displayed by their n----II and II----II dichroic transitions.
(8) These surplus chromophores become esterified and are temporarily taken up by the pigment epithelium to be re-entered into the visual cycle as fast as they can be processed by the regenerative machinery of the rod outer segments.
(9) Utilizing the known atomic coordinates of the chromophores (Schirmer, T., Bode, W. and Huber, R. (1987) J. Mol.
(10) In spite of this relatively high value and unusual stability, a persulfide group, R-S-SH, seems to be the most likely structure for this chromophore.
(11) The chromophore was found in the 105,000xg supernatant and gave a reduced CO-difference spectrum with an absorption maximum of 448 nm.
(12) The only other fluorescent chromophore in that region of the spectrum has excitation and emission peaks at 328 and 460 nm, respectively.
(13) When the monomer was further dissociated into constituent subunits in strong alkali or at high concentrations of SDS, the CD spectrum disappeared almost completely, indicating loss of the asymmetric interactions of the chromophoric heme a with its immediate environments, consisting of the subunit assembly.
(14) Using these techniques we have also determined a conditional reduction potential of -0.156 V for the chromophore producing fatty acyl-CoA substrate beta-2-furylpropionyl-CoA.
(15) This effect is attributed to intercalation of the ellipticine chromophore.
(16) The bathochromic shift may be a consequence of a reduced exposure of the chromophore to the aqueous solvent.
(17) In exogenous photosensitization, the chemical agent (chromophore) is most often identified, reaching the skin either via topical contact or by systemic administration (drugs).
(18) Circular dichroism of these compounds allows us to assign the transition due to the amide chromophore.
(19) Fourier-transform infrared difference spectroscopy has been used to detect the vibrational modes in the chromophore and protein that change in position or intensity between rhodopsin and the photoproducts formed at low temperature (70 K), bathorhodopsin and isorhodopsin.
(20) The second chromophore exhibits spectral properties (lambda max = 360, 255 nm, pH 2) similar to that observed for 7,8-dihydropterin cations.
Fret
Definition:
(n.) See 1st Frith.
(v. t.) To devour.
(v. t.) To rub; to wear away by friction; to chafe; to gall; hence, to eat away; to gnaw; as, to fret cloth; to fret a piece of gold or other metal; a worm frets the plants of a ship.
(v. t.) To impair; to wear away; to diminish.
(v. t.) To make rough, agitate, or disturb; to cause to ripple; as, to fret the surface of water.
(v. t.) To tease; to irritate; to vex.
(v. i.) To be worn away; to chafe; to fray; as, a wristband frets on the edges.
(v. i.) To eat in; to make way by corrosion.
(v. i.) To be agitated; to be in violent commotion; to rankle; as, rancor frets in the malignant breast.
(v. i.) To be vexed; to be chafed or irritated; to be angry; to utter peevish expressions.
(n.) The agitation of the surface of a fluid by fermentation or other cause; a rippling on the surface of water.
(n.) Agitation of mind marked by complaint and impatience; disturbance of temper; irritation; as, he keeps his mind in a continual fret.
(n.) Herpes; tetter.
(n.) The worn sides of river banks, where ores, or stones containing them, accumulate by being washed down from the hills, and thus indicate to the miners the locality of the veins.
(v. t.) To ornament with raised work; to variegate; to diversify.
(n.) Ornamental work in relief, as carving or embossing. See Fretwork.
(n.) An ornament consisting of smmall fillets or slats intersecting each other or bent at right angles, as in classical designs, or at obilique angles, as often in Oriental art.
(n.) The reticulated headdress or net, made of gold or silver wire, in which ladies in the Middle Ages confined their hair.
(n.) A saltire interlaced with a mascle.
(n.) A short piece of wire, or other material fixed across the finger board of a guitar or a similar instrument, to indicate where the finger is to be placed.
(v. t.) To furnish with frets, as an instrument of music.
Example Sentences:
(1) The FSA was fretting about solvency when liquidity was the problem.
(2) She finds indoor activities to discourage the kids from playing outside on the foulest days, and plans holidays abroad as often as possible – but still frets about what their years in Delhi may do to her children’s health.
(3) It might seem absurd, but she also fretted about the horrendous poll tax bills received by people she knew, people she knew couldn't pay.
(4) And in a broader sense, the sort of Conservatives who think intelligently and strategically – and there are more of them than you think – fret that a bearded 66-year-old socialist has ignited political debate in a way that absolutely nobody in the mainstream predicted.
(5) It certainly saved her fretting over her debut sex scene.
(6) Moyes had already described how he had fretted about his attire when Ferguson initially invited him round to discuss the biggest job in English football and how the colour had drained from his face when he was offered it.
(7) For long periods Argentina had been stifled by a fine counterpunching opposition, but it would be a little hasty to fret too much about them after this performance.
(8) Chipmaker ARM is the biggest faller in London, as analysts fret about a slowdown in royalty revenues.
(9) "I used to be really nervous and sit in my dressing room and fret about a scene," he told Rolling Stone .
(10) Hewitt, playing in probably his last Davis Cup for his country at 34 before retiring from the game at the Australian Open in January, added: “We were able to keep Andy out there for a long time, but he’s still favourite [on Sunday].” For the British team, the Murrays’ win lifted a considerable weight off the shoulders of the captain, Leon Smith, who shared the crowd’s anxiety at several key moments of the match, none more fretful than when Andy Murray failed to serve it out in the fourth set and then when they were unable to convert the first match point in the subsequent tie-break.
(11) While Victorians celebrated the empire on which the sun would never set with successive jubilees (golden, 1887, and diamond, 1897), many readers fretted over foreign (increasingly German) threats to the harmony of English life.
(12) On Tuesday, for every wealthy Kolonaki resident fretting about their cash, there was a less well-off state or company employee convinced it would not come to that.
(13) They fretted as political ambition was given rocket boosters by technology.
(14) But better economic sentiment means more market fretting over the Fed's huge stimulus programme being scaled back.
(15) • Follow the Guardian's World Cup team on Twitter • Sign up to play our daily Fantasy Football game • Stats centre: Get the lowdown on every player • The latest semi-final news, features and more People get fretful.
(16) • Three graphs to stop smartphone fans fretting about market share
(17) After dinner she drove him to the railway station while fretting over leaving her baby son sleeping at home.
(18) Significant differences in the shapes of the cathodic Tafel slopes were also seen with cylinders with different surface conditions, and static versus fretting plates.
(19) Despite their jokey exterior, most had big things on their mind, fretting over marriages and babies, breakups and single life; less "grossout" comedy than "freakout".
(20) City analysts still fret that Bailey has either taken on too much or is an unproven chief executive.