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We enjoy seeing what you do with our products. Here is some recent published work reporting use of Quantum Northwest temperature control.

 

  • Influence of Lipid Compositions in the Events of Retinal Schiff Base of Bacteriorhodopsin Embedded in Covalently Circularized Nanodiscs: Thermal Isomerization, Photoisomerization, and Deprotonation

    Huang, HY, Syue, ML, Chen, IC, Yu, TY, Chu, LK, J Phys Chem B, Pg. 9123-9133, Vol. 123, Issue 43 (2019)

    “…A stationary deuterium/tungsten halogen lamp (DH-2000, Ocean Optics) served as the probing light and was introduced to a thermostatic cell compartment (qpod, Quantum Northwest) set at 25 °C. T…”

  • Green approach for simultaneous determination of multi-pesticide residue in environmental water samples using excitation-emission matrix fluorescence and multivariate calibration

    Yuan, YY, Wang, ST, Liu, SY, Cheng, Q, Wang, ZF, Kong, DM, Spectrochim Acta A Mol Biomol Spectrosc, Pg. 117801 (2019)

    “…The slit widths of excitation and emission monochromators were set to 10 nm, and the scan rate was set as 1500 nm min − 1 . The sample chamber temperature was maintained at 20 °C using a TC125 temperature control (Quantum Northwest, Inc. Spokane, WA)…”

  • Divalent Cations and the Divergence of βγ-Crystallin Function

    Roskamp, KW, Kozlyuk, N, Sengupta, S, Bierma, JC, Martin, RW, Biochemistry, Pg. 4505-4518, Vol. 58, Issue 45 (2019)

    “…The sample temperatures were controlled using a Quantum Northwest TC 1 temperature controller (Quantum Northwest, Inc.) with a 2 min equilibration at each 1 °C temperature increment…”

  • Detection of Several Homologous MicroRNAs by a Single Smart Probe System Consisting of Linear Nucleic Acid Blockers

    Oladepo, SA, Yusuf, BO, Molecules, Vol. 24, Issue 20 (2019)

    “…s individually mixed with the SP or as a mixture of targets. The fluorescence spectra were acquired on 200–400 µL solutions, using a TE-cooled sample holder and a TC125 Temperature Control module (Quantum Northwest Inc., Liberty Lake, WA, USA). The temperature was programmed to vary (in 2 °C increments) from 20–78 °C, with a settling time of 100 s. In the presence of varying concentrations…”

  • Modification by transferrin increases the efficiency of delivery and the photodynamic effect of the quantum dot-phthalocyanine complex on A431 cells

    Gvozdev, DA, Ramonova, АА, Slonimskiy, YB, Maksimov, ЕG, Moisenovich, ММ, Paschenko, VZ, Arch. Biochem. Biophys., Pg. 108192, Vol. 678 (2019)

    “…Measurements were carried out in a Qpod 2e thermostatic cell (Quantum Northwest, USA) at a temperature of 25 °C. The decay of fluorescence anisotropy was approximated by the sum of the exponents r ( t ) = ∑ i n r 0 i e − t / θ i , where r 0 i is the fundamental anisotropy…”

  • Structural peculiarities of keto-carotenoids in water-soluble proteins revealed by simulation of linear absorption

    Pishchalnikov, RY, Yaroshevich, IA, Slastnikova, TA, Ashikhmin, AA, Stepanov, AV, Slutskaya, EA, Friedrich, T, Sluchanko, NN, Maksimov, EG, Phys Chem Chem Phys, Pg. 25707-25719, Vol. 21, Issue 46 (2019)

    “…In order to compensate for the effect of light scattering, an integrating sphere was installed in front of the sample. The temperature of the samples was stabilized by a Peltier-controlled cuvette holder Qpod 2e (Quantum Northwest, USA) with a magnetic stirrer…”

  • Photic generation of 11-cis-retinal in bovine retinal pigment epithelium

    Zhang, J, Choi, EH, Tworak, A, Salom, D, Leinonen, H, Sander, CL, Hoang, TV, Handa, JT, Blackshaw, S, Palczewska, G, Kiser, PD, Palczewski, K, J. Biol. Chem., Pg. 19137-19154, Vol. 294, Issue 50 (2019)

    “…To ensure consistent placement between the cuvette and the light emitting fiberend, we used a cage-mounted customized CVH100 cuvette holder (Thorlabs) and customized t2Sport cuvette holder with Peltierdriven temperature control (Quantum Northwest, Liberty Lake, WA, USA)…”

  • Energy Transfer between CNT Surface and −Re(CO)3(phen)+* Pendants Grafted to P4VP in Nanohybrid Shish-Kebob-like Structures

    Maisuls, I, Ostendorp, S, Wilde, G, Parola, A, Strassert, C, Wolcan, E, J. Phys. Chem. C (2019)

    “…grooves/mm), Glan-Thompson polarizers for excitation (Xe-lamps) and emission, a Peltier- thermostatized sample holder from Quantum Northwest (-40°C – 105°C), and two detectors, Page 7 of 36 ACS Paragon Plus Environment The Journal of Physical Chemistry…”

  • Comparative ultrafast spectroscopy and structural analysis of OCP1 and OCP2 from Tolypothrix

    Kuznetsova, V, Dominguez-Martin, MA, Bao, H, Gupta, S, Sutter, M, Kloz, M, Rebarz, M, Přeček, M, Chen, Y, Petzold, CJ, Ralston, CY, Kerfeld, CA, Polívka, T, Biochim Biophys Acta Bioenerg, Pg. 148120, Vol. 1861, Issue 2 (2019)

    “…in Ref. [16]. 2.6. Ultrafast spectroscopy. For all experiments, a 2 mm path length quartz cuvette with a magnetic stirrer, placed into a temperature-controlled sample holder (Quantum Northwest) was used. The sample temperature…”

  • Thermal Inactivation of a Cold-Active Esterase PMGL3 Isolated from the Permafrost Metagenomic Library

    Kryukova, MV, Petrovskaya, LE, Kryukova, EA, Lomakina, GY, Yakimov, SA, Maksimov, EG, Boyko, KM, Popov, VO, Dolgikh, DA, Kirpichnikov, MP, Biomolecules, Vol. 9, Issue 12 (2019)

    “…the lifetime and the amplitude (normalized to unity: 1 n i i a = ∑ ) of the i-th fluorescence decay component, respectively. The temperature of the sample was controlled by a Qpod 2e (Quantum Northwest, Liberty Lake, WA, USA) cuvette holder…”

  • Chemical physics of whey protein isolate in the presence of mucin: From macromolecular interactions to functionality

    Ahmad, M, Ritzoulis, C, Pan, W, Chen, J, Int. J. Biol. Macromol., Pg. 573-581, Vol. 143 (2019)

    “…The intensities of emitted fluorescence radiation were recorded on a Hitachi F-7000 spectrofluorometer (Tokyo, Japan) with a Luma 40, TC1, turret 6 temperature controller (Quantum Northwest Inc., Liberty Lake, WA) using a 1 cm quartz cuvette…”

  • Divalent Cations and Lipid Composition Modulate Membrane Insertion and Cancer-Targeting Action of pHLIP

    Vasquez-Montes, V, Gerhart, J, Thévenin, D, Ladokhin, AS, J. Mol. Biol., Pg. 5004-5018, Vol. 431, Issue 24 (2019)

    “…, Sample temperature was maintained constant at 25 °C using a Peltier device from Quantum Northwest (Spokane, WA.)…”

  • Extended Alkenyl and Alkynyl Benzotriazoles with Enhanced Two-Photon Absorption Properties as a Promising Alternative to Benzothiadiazoles

    Torres-Moya, I, Benitez-Martin, C, Donoso, B, Tardío, C, Martín, R, Carrillo, JR, Díaz-Ortiz, Á, Najera, F, Prieto, P, Perez-Inestrosa, E, Chemistry, Pg. 15572-15579, Vol. 25, Issue 68 (2019)

    “…or blazed at 1250 nm with 5.4 nm mm−1 dispersion and 600 grooves per mm),  Glan‐Thompson polarizers for excitation (Xe lamps) and emission,  a Peltier thermostatted sample holder from Quantum Northwest (40 to 105 °C), …”

  • Molecular interactions between gelatin and mucin: Phase behaviour, thermodynamics and rheological studies

    Ahmad, M, Ritzoulis, C, Pan, W, Chen, J, Food Hydrocolloids (2019)

    “…The fluorescence intensity was recorded as function of the wavelength on a Hitachi F-7000 spectrofluorometer (Tokyo, Japan) equipped with a Quantum Northwest Inc., Luma 40, TC1, turret 6 temperature controller (Liberty Lake, WA, USA) using a 1 cm-path length…”

  • Reconfiguration of π-conjugated superstructures enabled by redox-assisted assembly

    Liu, K, Mukhopadhyay, A, Ashcraft, A, Liu, C, Levy, A, Blackwelder, P, Olivier, JH, Chem. Commun. (Camb.), Pg. 5603-5606, Vol. 55, Issue 39 (2019)

    “…NMR spectra were recorded on an Avance Bruker 400 MHz spectrometer. UV-vis-NIR spectra were recorded on a Cary 5000 equipped with a Peltier-controlled heating stage (Versa 20 from Quantum Northwest). IR spectra were recorded on a Perkin Elmer Frontier…”

  • Chemoplasmonic Oscillation: A Chemomechanical Energy Transducer

    Deng, F, Feng, J, Ding, T, ACS Appl Mater Interfaces, Pg. 42580-42585, Vol. 11, Issue 45 (2019)

    “…UV−vis extinction spectra (QE65000, Ocean Optics) and pH values (F-72G, Horiba) of the solution were continuously recorded during the pH/chemoplasmonic oscillation in a qpod-2e cuvette holder (Quantum Northwest) at the stirring rate of 500 rpm…”

  • Epigenetic modification of cytosines fine tunes the stability of i-motif DNA

    Wright, EP, Abdelhamid, MAS, Ehiabor, MO, Grigg, MC, Irving, K, Smith, NM, Waller, ZAE, Nucleic Acids Res. (2019)

    “…UV absorption spectroscopy UV spectroscopy experiments were performed on a Cary 60 UV-Vis spectrometer (Agilent Technologies) equipped with a qChanger Temperature Controller (Quantum Northwest) and recorded using low volume masked quartz cuvettes…”

  • Sub-20 nm Core-Shell-Shell Nanoparticles for Bright Upconversion and Enhanced Förster Resonant Energy Transfer

    Siefe, C, Mehlenbacher, RD, Peng, CS, Zhang, Y, Fischer, S, Lay, A, McLellan, CA, Alivisatos, AP, Chu, S, Dionne, JA, J. Am. Chem. Soc., Pg. 16997-17005, Vol. 141, Issue 42 (2019)

    “…The cuvette was stirred in a qpod 2e cuvette holder from Quantum Northwest, coupled to a 980 nm diode (MDL-III-980/2W from Opto Engine LLC), and spectra were collected using an Ocean Optics HR4000 Spectrometer while the temperature was maintained at 20 °C…”

  • Development of methods based on NIR and Raman spectroscopies together with chemometric tools for the qualitative and quantitative analysis of gasoline

    de Paula Pedroza, RH,  Thesis (2019)

    “…The spectra were obtained using the same spectrometer as in the qualitative analysis, however, the instrument was configured for the transmission mode instead of transflection. A Quantum Northwest temperature-controlled cuvette holder model t2 Sport (Liberty Lake, WA, United States) was coupled inside the instrument compartment,…”

  • Rapid Hydrolysis of Organophosphates Induced by U(IV) Nanoparticles: A Kinetic and Mechanistic Study using Spectroscopic Analysis

    Cho, H, Cha, W,  Colloids and Interfaces, Pg. 63, Vol. 3, Issue 4 (2019)

    “…nitrophenolate (NP). A spectrophotometer (MCS601, Carl Zeiss, Jena, Germany) equipped with a temperature-controlled cell holder (Qpod 2e, Quantum Northwest, USA) was used for the measurements. Typically, aqueous       Cached…”

  • Dithiasuccinoyl-Caged Amines Enables COS/H2S Release Lacking Electrophilic Byproducts

    Cerda, M, Mancuso, J, Mullen, E, Hendon, C, Pluth, M, ChemRxiv (2019)

    “…Each experiment was performed in quadruplicate unless stated otherwise. UV-Vis spectra were acquired on an Agilent Cary 60 UV-Vis spectrophotometer equipped with a Quantum Northwest TC-1 temperature controller set at 25 ± 0.05 °C. Computational Methods…”

  • Charge Reduction of Membrane Proteins in Native Mass Spectrometry Using Alkali Metal Acetate Salts

    Petroff II, J, Tong, A, Chen, L, DeKoster, G, Khan, F, Abramson, J, Frieden, C, Cheng, W, ChemRxiv (2019)

    “…fluorescence emission spectra of ELIC and a small tryptophan containing peptide were collected using a PTI spectrofluorometer (Photon Technology International, now Horiba Scientific) equipped with a Peltier-controlled four-position cell changer (Quantum Northwest…”

  • Computer-Aided Understanding of Perturbations in Soft Matter Systems

    Uralcan, B, Thesis (2019)

    “…Circular dichroism spectra at 222 nm and 230 nm were collected at 1 K increments using a Chirascan CD Spectrometer (Applied Photophysics, Leatherhead, UK). Temperature ramping at 0.5 K/min was carried out by a TC125 temperature controller (Quantum Northwest, Liberty Lake, WA) and a Julabo AWC100 recirculating cooler. Each wavelength was sampled for 25 seconds. Molar ellipticity values were determined from the raw CD data and the known TC5b molarity. Helix fraction was calculated from ellipticity as in Heyda et al…”

  • Investigating hybridization kinetics of oligos binding to DNA secondary structures

    Zou, O, Thesis (2019)

    “…Page 9. 6 Fluorescence Measurements Fluorescence measurements were taken with an Ocean Optics Flame-S-UV-VIS-ES spectrometer. The quartz cuvette temperature was maintained at 25˚C using the Quantum Northwest qpod 2e temperature-controlled cuvette…”

  • The contribution of the ankyrin repeat domain of TRPV1 as a thermal module

    Ladron-de-Guevara, E, Rangel-Yescas, GE, bioRxiv, Pg. 1-27 (2019)

    “…collected from 310 to 400 nm, using excitation and emission slits of 0.25 and 1 mm respectively. The 159 temperature was controlled with a Peltier device (Quantum Northwest). Normalized intensity at 330 nm 160 and SCM data (see below) were fitted to Eq. 1. 161…”

  • First Synthesisof HighlyChemiluminescentBenzo[b]furan-2(3H)-onesBearinga Urea Substructure

    Krieg, R, Hoffmann, B, Weiß, D, Biskup, C, HCA, Pg, 1-20 (2019)

    “…Excitation and emission slits were set to 5 nm. All measurements were performed in macro quartz cuvettes with a path length of 1 cm (Hellma Optics) under magnetic stirring at (25.0±0.1) °C using a temperature‐controlled cuvette holder. Temperature was monitored by a controller (TC 425, Quantum Northwest, USA). At least three measurements were made for each substance, which have been purified for the measurements, and the controls. Spectra were blank corrected, that is, subtracting the contribution of the solvent…”

  • Using Time-Resolved Fluorescence Anisotropy of di-4-ANEPPDHQ and F2N12S to Analyze Lipid Packing Dynamics in Model Systems

    Steele, HBB, Sydor, MJ, Anderson, DS, Holian, A, Ross, JBA, J Fluoresc, Pg. 347-352, Vol. 29, Issue 2 (2019)

    “…FluorTools.com). Fluorescence Lifetime and Time-Resolved Anisotropy Decay Measurements. TCSPC data was collected using a custom fluorimeter (Quantum Northwest, Liberty Lake, WA) as described previously [25]. Di-4…”

  • Intramolecular cross-linking of proteins with azobenzene-based cross-linkers

    Yasuike, N, Lu, H, Xia, P, Woolley, G, Methods in Enzymology (2019)

    “…5.2. Characterization by UV-vis spectrophotometer 5.2.1. Equipment • UV-vis spectrophotometer (Perkin Elmer Lambda 35)  • Temperature-controlled cuvette holder (from Quantum Northwest)  • 10 mm quartz cuvette  • 370 nm LED (from LedEngin, operating at 68 mW/cm2)   5.2.2. Materials • IAC-cross-linked protein sample in 10 mM sodium phosphate buffer, pH 7.0…”

  • Methods for thermal denaturation studies of nucleic acids in complex with fluorogenic dyes

    Aufdembrink, LM, Hoog, TG, Pawlak, MR, Bachan, BF, Heili, JM, Engelhart, AE, Meth. Enzymol., Pg. 23-43, Vol. 623 (2019)

    “…The Agilent Cary 60 is among the more inexpensive cuvette-based UV-visible spectrometers available (ca. $11K new as of 2017) but is unique in that it employs a flashlamp source with a 80 Hz repetition rate, enabling scanning a full UV-visible spectrum in a few seconds. It does not have a multi-cell Peltier module, but one is commercially available from a third-party vendor (qCHANGER 6 from Quantum Northwest, ca. $7K new as of 2017). Here, we describe the use of the combination of these two instruments for data collection in full-spectrum UV-visible thermal denaturation…”

  • Hybrid coupling of R-phycoerythrin and the orange carotenoid protein supports the FRET-based mechanism of cyanobacterial photoprotection

    Maksimov, EG, Li, WJ, Protasova, EA, Friedrich, T, Ge, B, Qin, S, Sluchanko, NN, Biochem. Biophys. Res. Commun. (2019)

    “…A 550 nm longpass filter (Thorlabs, USA) was used to block excitation light. During the experiment temperature of the sample was controlled by a cuvette holder Qpod 2e (Quantum Northwest, USA). 3. Results and discussion…”

  • Complexation of Eu(III) with furan monocarboxylates in aqueous medium at variable temperatures: Luminescence and computational studies

    Kumar, S, Maji, S, Ramanathan, N, Sundararajan, K, Journal of Luminescence, Pg. 83-91, Vol. 212 (2019)

    “…The temperature of the solution was adjusted to different values (283-343 K) using a temperature controlled cuvette holder (TC-125, Quantum Northwest USA). Luminescence decay spectra of the excited states were recorded using the same instrument with a μs-Xe…”

  • The self-association equilibria of doxorubicin at high concentration and ionic strength characterized by fluorescence spectroscopy and molecular dynamics simulations

    Tasca, E, Alba, J, Galantini, L, D’Abramo, M, Giuliani, A, Amadei, A, Palazzo, G, Giustini, M, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Pg. 517-522, Vol. 577 (2019)

    “…Steady-state fluorescence measurements were performed on a Fluoromax 2 instrument (Horiba-Jobin Yvon), equipped with a Peltier thermostatted LUMA 40/JY1 sample holder (Quantum Northwest) controlled by the TC1 unit via the T-App software from the same…”

  • Lipid-modulation of membrane insertion and refolding of the apoptotic inhibitor Bcl-xL

    Vasquez-Montes, V, Vargas-Uribe, M, Pandey, NK, Rodnin, MV, Langen, R, Ladokhin, AS, Biochim Biophys Acta Proteins Proteom, Pg. 691-700, Vo. 1867, Issue 7-8 (2019)

    “…Measurements were made using a 2 × 10 mm cuvette oriented perpendicular to the excitation beam and maintained at 25 °C using a Peltier device from Quantum Northwest (Spokane, WA.). All measurements were collected after the sample was equilibrated for at least…”

  • Drug-induced activation of integrin alpha IIb beta 3 leads to minor localized structural changes

    Janke, U, Kulke, M, Buchholz, I, Geist, N, Langel, W, Delcea, M, PLoS ONE, Pg. e0214969, Vol. 14, Issue 4 (2019)

    “…iolin Scientific AB).  Circular dichroism (CD) spectroscopy CD spectra were measured with a Chirascan CD spectrometer (Applied Photophysics, Leatherhead, UK) equipped with a temperature control unit (Quantum Northwest, Liberty Lake, USA) at 37°C. Measurements at wavelengths in the range of 195–360 nm were performed with a 5 mm path length cuvette (110-QS,  Hellma Analytics, Müllheim, Germany) a…”

  • Resolving the Fluorescence Quenching Mechanism of an Oxazine Dye Using Ultrabroadband Two-Dimensional Electronic Spectroscopy

    Carbery, WP, Pinto-Pacheco, B, Buccella, D, Turner, DB, J Phys Chem A, Pg. 5072-5080, Vol. 123, issue 24 (2019)

    “…and excitation monochromators, excitation correction unit, and PMT detector. All measurements were conducted at 25.0 ± 0.1 ◦ C maintained by a Quantum Northwest cuvette temperature controller. Emission and excitation spectra…”

  • Detection of Incorporation of p-Coumaric Acid into Photoactive Yellow Protein Variants in Vivo

    Brechun, KE, Zhen, D, Jaikaran, A, Borisenko, V, Kumauchi, M, Hoff, WD, Arndt, KM, Woolley, GA, Biochemistry, Pg. 2682-2694, Vol. 58, Issue 23 (2019)

    “…Absorbance spectra were recorded using a PE Lambda 35 or 25 spectrometer or using a diode array UV-visible spectrophotometer (Ocean Optics Inc., USB4000), with a temperature- controlled cuvette holder (Quantum Northwest, Inc.). Samples were measured in…”

  • New bioinspired luminescent compounds based on lumazine: A photophysical study in solution and solid state

    Navarro, A, Jiménez-Pulido, S, Garzón-Ruiz, A, Illán-Cabeza, N, Hueso-Ureña, F, Alejo-Armijo, A, Moreno-Carretero, M, Dyes and Pigments, Pg. 281-294, Vol. 168 (2019)

    “…The temperature of the fluorescence experiments was also controlled using a Peltier accessory (temperature-controlled cuvette holder, TLC 50, Quantum Northwest). The quantum yields, Φ F , in solution and in solid state were measured using the integrating sphere…”

  • Sequence-specific B-to-Z transition in self-assembled DNA: A biophysical and thermodynamic study

    Bhanjadeo, MM, Baral, B, Subudhi, U, Int. J. Biol. Macromol. (2019)

    “…CD spectra of all samples were measured at 20 °C with scan speed of 60 nm/min, bandwidth of 1 nm and 0.5 s per point. The temperature of the cell was controlled with Industrial Chiller (CW-3000) and monitored through temperature controller (Quantum Northwest…”

  • Formation of CaUO2(CO3)32- and Ca2UO2(CO3)3(aq) complexes at variable temperatures (10-70 °C)

    Jo, Y, Kirishima, A, Kimuro, S, Kim, HK, Yun, JI, Dalton Trans, Pg. 6942-6950, Vol. 48, Issue 20 (2019)

    “…kg −1 for 10, 25, and 40 °C, 5 × 10 −3 mol kg −1 for 55 °C, and 9 × 10 −3 mol kg −1 for 70 °C). Absorption spectra were recorded by using a spectrophotometer (Agilent, Cary 100) in conjugation with a temperature-controlled cuvette holder (Quantum Northwest…”

  • Spectroscopic speciation of aqueous Am(iii)-oxalate complexes

    Kim, HK, Jeong, K, Cho, HR, Jung, EC, Kwak, K, Cha, W, Dalton Trans (2019)

    “…Each spectrum was obtained by accumulating the luminescence signals from 500 laser pulses. All measurements were carried out at 25℃, and the temperature was controlled by a thermostat (Q-pod, Quantum Northwest). The…”

  • Nd3+ doped Gd3Sc2Al3O12 nanoparticles: towards efficient nanoprobes for temperature sensing

    Dantelle, G, Matulionyte, M, Testemale, D, Cantarano, A, Ibanez, A, Vetrone, F, Phys Chem Chem Phys, Pg. 11132-11141, Vol. 21, Issue 21 (2019)

    “…To avoid detecting the scattered excitation light, a long-pass 830 nm filter (Semrock Inc., USA) was used. The temperature was changed using a temperature controlled cuvette holder (qpod 2e, Quantum Northwest, Washington, USA)…”

  • Photochromic reaction in 3H-naphthopyrans studied by vibrational spectroscopy and quantum chemical calculations

    Brazevic, S, Nizinski, S, Szabla, R, Rode, MF, Burdzinski, G, Phys Chem Chem Phys, Pg. 11861-11870, Vol. 21, Issue 22 (2019)

    “…Page 6. 5 Some experiments in UV-vis spectral range were performed using a temperature- controlled cuvette holder (Flash 300, Quantum Northwest). The solutions were prepared in a quartz cell (10 mm × 10 mm) at concentrations adjusted for absorption of about…”

  • Metal binding characterization of heterologously expressed metallothionein of the freshwater crab Sinopotamon henanense

    Yang, H, Gu, W, Chen, W, Hwang, J, Wang, L, Chemosphere, Pg. 926-934, Vol. 235 (2019)

    “…CD spectrometer was interfaced to an HP computer (Hewlett-Packard, USA) with Chirascan software, and the temperature was maintained by a TC1 temperature controller (Quantum Northwest, Liberty Lake, WA, USA) and Julabo 5 (Julabo Labortechnik GmbH, Seelbach…”

  • A genetically encoded fluorescent temperature sensor derived from the photoactive Orange Carotenoid Protein

    Maksimov, EG, Yaroshevich, IA, Tsoraev, GV, Sluchanko, NN, Slutskaya, EA, Shamborant, OG, Bobik, TV, Friedrich, T, Stepanov, AV, Sci Rep, Pg. 8937, Vol. 9, Issue 1 (2019)

    ”…respectively. The temperature of the sample was stabilized by a Peltier-controlled cuvette holder Qpod 2e (Quantum Northwest, Liberty Lake, WA). Picosecond time-resolved fluorescence measurements. Fluorescence-decay…”

  • Combined Theoretical and Experimental Study on Intramolecular Charge Transfer Processes in Star-Shaped Conjugated Molecules

    Moral, M, Tolosa, J, Canales-Vázquez, J, Sancho-García, J, Garzón-Ruiz, A, García-Martínez, J, J. Phys. Chem. C, Pg. 11179-11188, Vol. 123, Issue 17 (2019)

    “…here αi and τi are the amplitude and lifetime for each ith term. The number of ith terms used in that fitting was the minimum needed to get a homogeneous distribution of the weighted residuals and a value of χ2 near unity. The mean lifetime of the decay was then calculated as (3) The temperature of the experiments was controlled using a Peltier accessory (temperature-controlled cuvette holder, TLC 50, Quantum Northwest). FTIR measurements were carried out at room temperature using a 640-IR (Varian) spectrophotometer equipped with an attenuated total reflection (ATR) accessory. The spectra were recorded with resolution of 4 cm–1 and 64 scans…”

  • C9orf72 and Triplet Repeat Disorder RNAs: G-quadruplex formation, binding to PRC2 and implications for disease mechanisms

    Wang, X, Goodrich, KJ, Conlon, EG, Gao, J, Erbse, AH, Manley, JL, Cech, TR, RNA (2019)

    “…CD spectra were collected with a Chirascan-Plus spectropolarimeter (Applied Photophysics, UK) equipped with an AP/CD250 Peltier-controlled variable temperature cell holder from Quantum Northwest using a 0.5 mm path length cell. Spectra were recorded from 360…”

  • Fluorescent Arylethynyl Hamilton Receptors for Barbiturate Sensing

    Seidenkranz, DT, Pluth, MD, J. Org. Chem. (2019)

    “…The following naming conventions were used to describe NMR couplings: (s) singlet, (d) doublet, (t) triplet, (q) quartet, (dd) doublet of doublets, (m) multiplet, and (b) broad. Mass spectrometric measurements were performed by the University of Illinois, Urbana Champaign MS Facility, or on a Waters Xevo ESI LC/MS instrument. Absorbance measurements were performed using an Agilent Technologies Cary 60 spectrometer. Fluorescence measurements were performed using a QuantaMaster 40 spectrofluorometer (Photon Technology International) equipped with a Quantum Northwest TLC-50 temperature controller at 25.0 ± 0.05 °C…”

  • Controlling Hydrogen Evolution during Photoreduction of CO2 to Formic Acid Using [Rh(R-bpy)(Cp*)Cl]+ Catalysts: A Structure-Activity Study

    Todorova, TK, Huan, TN, Wang, X, Agarwala, H, Fontecave, M, Inorg Chem, Pg. 6893-6903, Vol. 58, Issue 10 (2019)

    “…Photochemical reactions were performed using a 300 W, high-pressure Xe arc lamp (Oriel Instruments). The beam was passed through an infrared filter, a collimating lens, and a filter holder equipped with a 415 nm band-pass filter. Samples were prepared in a 1 cm path length quartz cuvette (Starna) that was placed in a temperature-controlled cuvette holder (Quantum Northwest) maintained at 20 °C with a circulated water bath. The solvent consists of a CO2-saturated mixture of acetonitrile (CH3CN) and triethanolamine (TEOA) in a 5:1 volumetric ratio, in which TEOA acts as both a sacrificial electron donor and a source of protons. [Ru(bpy)3]Cl2 (1.0 mM) was used as a photosensitizer, which is in a 10-fold excess with respect to the [Rh(R-bpy)(Cp*)Cl]+ catalyst. Samples were saturated with CO2 via directly bubbling CO2 through the solution mixture for 10 min…”

  • Fluorescent thermal sensing using conjugated polyelectrolytes in thin polymer films

    Yassine, S, Hassoun, S, Karam, P, Analytica Chimica Acta (2019)

    “…Steady-state fluorescent spectroscopy was acquired upon excitation at 420 nm, and the emission was collected between 435 and 650 nm using a Thermo Fisher Lumina spectrometer equipped with a temperature controller unit (T3 Quantum Northwest)…”

  • CH‐π Interactions Promote the Conversion of Hydroxypyruvate in a Class II Pyruvate Aldolase

    Marsden, S, Mestrom, L, Bento, I, Hagedoorn, P, McMillan, D, Hanefeld, U, Adv. Synth. Catal., Pg. 1-10 (2019)

    “…mL. The change in absorbance was followed at 340 nm in PMMA cuvettes (800 rpm, 25°C) in triplicate, using a Cary 60 UV-Vis spectrometer (Agilent Technologies) equipped with a TC 1 stirring unit (Quantum Northwest). Curve…”

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