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Tac 7 dx

Manufactured by PerkinElmer
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The TAC 7/DX is a laboratory instrument manufactured by PerkinElmer. It is designed for the analysis of samples using thermal analysis techniques.

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Lab products found in correlation

Dsc 7, by PerkinElmer (3 mentions) Standard aluminum sample pans, by PerkinElmer (2 mentions) Model dsc7, by PerkinElmer (1 mentions) Dsc 7 differential, by PerkinElmer (1 mentions) Pyris 1 tga, by PerkinElmer (1 mentions) Dsc 7 differential scanning calorimeter, by PerkinElmer (1 mentions)

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TAC 7/DX instrument controller (2 citations)

11 protocols using tac 7 dx

1

Thermal Analysis of DW Nanospheres

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3–7 mg of each formulation or bulk polymers were sealed into aluminum sample pans for differential scanning calorimetry (DSC) analysis. Thermal analyses of the DW nanospheres were performed using a Model DSC 7 (Perkin-Elmer, Inc.; Waltham, MA) equipped with controller model TAC 7/DX (Perkin-Elmer, Inc.; Waltham, MA). After achieving equilibrium at −20°C, samples were heated to 200°C, cooled to −20°C then reheated to 200°C again all at a rate of 10°C/min. Thermograms were analyzed using Perkin-Elmer Thermal Analysis built-in software for the calculation of glass transition temperatures (Tg).
Azagury A., Fonseca V.C., Cho D.Y., Perez-Rogers J., Baker C.M., Steranka E., Goldenshtein V., Calvao D., Darling E.M, & Mathiowitz E. (2018). Single Step Double-walled Nanoencapsulation (SSDN). Journal of controlled release : official journal of the Controlled Release Society, 280, 11-19.
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2

Differential Scanning Calorimetry of Pluronic F127

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DSC measurements were performed with a PerkinElmer (DSC7, PerkinElmer, Norwalk, CT, USA), equipped with an instrument controller Tac 7/DX (PerkinElmer) with elaboration software data Pyris Version 3.71, by heating the samples at 10 °C/min from 10 °C to 40 °C. Signals were recorded and used to localize the micellization phenomenon of Pluronic® F127 in the external aqueous phase of O/W ME with and without BVZ compared with Pluronic® F127 solution.
Peira E., Chindamo G., Chirio D., Sapino S., Oliaro-Bosso S., Rebba E., Ivanchenko P, & Gallarate M. (2021). Assessment of In-Situ Gelling Microemulsion Systems upon Temperature and Dilution Condition for Corneal Delivery of Bevacizumab. Pharmaceutics, 13(2), 258.
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3

Thermogravimetric Analysis of Modulated UiO-66(Hf)

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Samples were prepared for TGA analysis by activation under vacuum (150 °C for 24 h). TGA measurements were performed using a Perkin Elmer TGA 7, with a Perkin Elmer TAC 7/DX thermal analysis controller, from 50 to 650 °C, with a temperature ramp rate of 5 °C min−1. The corresponding TGA traces, normalised against the mass at 650 °C, are shown in Supplementary Figure 9. A number of previous studies have focussed on the importance of TGA evidence for establishing ligand substoichiometry, finding ligand:cluster ratios that fall below the idealised ratio of 6:1 (45 ). We also find this to be the case for nano-structured UiO-66(Hf). It is also clear that with increasing modulator content the mass loss increases [Supplementary Figure 10] and hence ligand:cluster ratio decreases [Supplementary Figure 11], which is consistent with our cluster vacancy model. We also find evidence for loss of formic acid at around 250 °C, indicated by the step in mass, as previously described and seen for trifluoroacetic acid-modulated UiO-66 (20 (link)).
Cliffe M.J., Wan W., Zou X., Chater P.A., Kleppe A.K., Tucker M.G., Wilhelm H., Funnell N.P., Coudert F.X, & Goodwin A.L. (2014). Correlated Defect Nano-Regions in a Metal–Organic Framework. Nature communications, 5, 4176.
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4

Thermogravimetric Analysis of Materials

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Thermogravimetric measurements were carried out using a Perkin Elmer TGA 7, with Perkin Elmer TAC 7/DX thermal analysis controller, from 30 to 600 °C at a rate of 10 °C min−1 under flowing nitrogen.
Hunt S.J., Cliffe M.J., Hill J.A., Cairns A.B., Funnell N.P, & Goodwin A.L. (2014). Flexibility transition and guest-driven reconstruction in a ferroelastic metal–organic framework. Crystengcomm, 17(2), 361-369.
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5

Thermal Analysis of Survanta EEG Powder

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The thermal properties (glass transition temperature) of the spray-dried Survanta EEG powder samples were determined by differential scanning calorimetry (DSC) using the DSC 7 (PerkinElmer, Covina, CA) with TAC 7/DX thermal analysis controller. About 2 mg of each sample (spray-dried powder sample and dried sample of commercial suspension) was hermetically sealed in an aluminum DSC pan and heated over a range of 25 °C to 100 °C at 5 °C/min under a nitrogen environment (purge at 20 mL/min) (46 (link),47 (link)). An empty pan was used as a reference.
Boc S., Momin M.A., Farkas D.R., Longest W, & Hindle M. (2021). Development and characterization of excipient enhanced growth (EEG) surfactant powder formulations for treating neonatal respiratory distress syndrome. AAPS PharmSciTech, 22(4), 136.
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6

Differential Scanning Calorimetry Analysis of Freeze-Dried Samples

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Differential scanning calorimetry (DSC) was carried out by means of a Perkin Elmer DSC/7 differential scanning calorimeter (Perkin-Elmer, Waltham, MA, USA) equipped with a TAC 7/DX instrument controller. The instrument was calibrated with indium for melting point and heat of fusion. A heating rate of 10 °C/min was employed in the 25–250 °C temperature range. Standard aluminum sample pans (Perkin-Elmer) were used; an empty pan was used as a reference standard. Analyses were performed in triplicate on 3 mg freeze-dried samples under a nitrogen purge.
Argenziano M., Dianzani C., Ferrara B., Swaminathan S., Manfredi A., Ranucci E., Cavalli R, & Ferruti P. (2017). Cyclodextrin-Based Nanohydrogels Containing Polyamidoamine Units: A New Dexamethasone Delivery System for Inflammatory Diseases. Gels, 3(2), 22.
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7

Differential Scanning Calorimetry Analysis

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DSC was carried out by means of a Perkin Elmer DSC/7 differential scanning calorimeter (Perkin-Elmer, Shelton, CT, USA) equipped with a TAC 7/DX instrument controller. The instrument was calibrated with indium for melting point and heat of fusion. A heating rate of 10 °C/min was employed in the 25–250 °C temperature range. Standard aluminum sample pans (Perkin-Elmer) were used; an empty pan was used as a reference standard. Analyses were performed in triplicate on 3 mg samples under nitrogen purge.
Tannous M., Lucia Appleton S., Hoti G., Caldera F., Argenziano M., Monfared Y.K., Matencio A., Trotta F, & Cavalli R. (2022). Dextrin-Based Nanohydrogels for Rokitamycin Prolonged Topical Delivery. Gels, 8(8), 490.
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8

Thermogravimetric Moisture Analysis

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The estimated moisture content of the powder samples was determined by thermogravimetric analysis using the Pyris 1 TGA (PerkinElmer, Covina, CA) with TAC 7/DX thermal analysis controller. About 2 mg samples of powders were loaded in aluminum pans and heated at 10 °C/min from 25 °C to 100 °C under nitrogen gas purging at 40 mL/min. The estimated moisture content (as percentage) was determined from the percent weight loss following an isothermal hold at 100 °C for 45 min.
Boc S., Momin M.A., Farkas D.R., Longest W, & Hindle M. (2021). Development and characterization of excipient enhanced growth (EEG) surfactant powder formulations for treating neonatal respiratory distress syndrome. AAPS PharmSciTech, 22(4), 136.
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9

Thermogravimetric Analysis of Modulated UiO-66(Hf)

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Samples were prepared for TGA analysis by activation under vacuum (150 °C for 24 h). TGA measurements were performed using a Perkin Elmer TGA 7, with a Perkin Elmer TAC 7/DX thermal analysis controller, from 50 to 650 °C, with a temperature ramp rate of 5 °C min−1. The corresponding TGA traces, normalised against the mass at 650 °C, are shown in Supplementary Figure 9. A number of previous studies have focussed on the importance of TGA evidence for establishing ligand substoichiometry, finding ligand:cluster ratios that fall below the idealised ratio of 6:1 (45 ). We also find this to be the case for nano-structured UiO-66(Hf). It is also clear that with increasing modulator content the mass loss increases [Supplementary Figure 10] and hence ligand:cluster ratio decreases [Supplementary Figure 11], which is consistent with our cluster vacancy model. We also find evidence for loss of formic acid at around 250 °C, indicated by the step in mass, as previously described and seen for trifluoroacetic acid-modulated UiO-66 (20 (link)).
Cliffe M.J., Wan W., Zou X., Chater P.A., Kleppe A.K., Tucker M.G., Wilhelm H., Funnell N.P., Coudert F.X, & Goodwin A.L. (2014). Correlated Defect Nano-Regions in a Metal–Organic Framework. Nature communications, 5, 4176.
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10

Thermal Analysis of CURC-Lipid Interactions

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DSC studies were performed to investigate CURC-lipid interactions and the crystallinity of both CURC and lipid, because these parameters might influence the release.
Perkin Elmer differential calorimeter (DSC7, Perkin Elmer, Nortwalk, CT, USA) equipped with an instrument controller Tac 7/DX (Perkin Elmer) was used. A heating rate of 10 °C/min was employed in the 25–200 °C temperature range. SLN suspensions were freeze-dried without adding any cryoprotectant using a Modulyo Freeze Dryer (Edwards Alto Vuoto, Trezzano sul Naviglio, Italy). Freeze-dried SLNs were weighted and placed in a conventional aluminum pan for analysis.
The degree of crystallinity of SLNs was estimated by calculating the ratio between the melting enthalpy/g lipid in SLN dispersion and the melting enthalpy/g of the bulk material [19 ,20 (link)].
Chirio D., Peira E., Dianzani C., Muntoni E., Gigliotti C.L., Ferrara B., Sapino S., Chindamo G, & Gallarate M. (2019). Development of Solid Lipid Nanoparticles by Cold Dilution of Microemulsions: Curcumin Loading, Preliminary In Vitro Studies, and Biodistribution. Nanomaterials, 9(2), 230.
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