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n 2 hydroxyethylpiperazine n 2 ethane sulfonic acid  (Thermo Fisher)


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    Structured Review

    Thermo Fisher n 2 hydroxyethylpiperazine n 2 ethane sulfonic acid
    N 2 Hydroxyethylpiperazine N 2 Ethane Sulfonic Acid, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/2+ap/HEPES%2C+1%2E0M+buffer+soln%2E%2C+pH+6%2E5/pmc13240773-188-19-23
    Average 94 stars, based on 1 article reviews
    n 2 hydroxyethylpiperazine n 2 ethane sulfonic acid - by Bioz Stars, 2026-09
    94/100 stars

    Images

    Related Articles

    Incubation:

    Article Title: Scalable synthetic peptide hydrogel enables self-organized luminal cavity architecture within hiPSC 3D colonies supporting functional hepatocyte differentiation
    Article Snippet: PG-hiHs were retrieved and fixed using 10% neutral buffered formalin (NBF) (Sigma). .. Following fixation, the 3D colonies were rinsed with wash buffer (DPBS with Ca 2+ /Mg 2+ supplemented with 0.2% Triton-X 100 and 0.1% gelatin from cold water (all from Sigma‒Aldrich) and subsequently incubated in 10% normal goat serum (Thermo Fisher) in wash buffer overnight for blocking. ..

    Blocking Assay:

    Article Title: Scalable synthetic peptide hydrogel enables self-organized luminal cavity architecture within hiPSC 3D colonies supporting functional hepatocyte differentiation
    Article Snippet: PG-hiHs were retrieved and fixed using 10% neutral buffered formalin (NBF) (Sigma). .. Following fixation, the 3D colonies were rinsed with wash buffer (DPBS with Ca 2+ /Mg 2+ supplemented with 0.2% Triton-X 100 and 0.1% gelatin from cold water (all from Sigma‒Aldrich) and subsequently incubated in 10% normal goat serum (Thermo Fisher) in wash buffer overnight for blocking. ..

    Article Title: ZEB1 Modifies VE-Cadherin Signaling in Lymphatic Endothelial Cells.
    Article Snippet: .. A permeabilizing solution of 0.3% triton in PBS was added for 5 min followed by blocking using 2% BSA in PBS (stock concentration of Thermo 10× blocker) for 1 h at room temperature. ..

    Sterility:

    Article Title: Neonatal expression of human FMRP isoform corrects cortical deficits and improves behavior in a mouse model of fragile X syndrome
    Article Snippet: .. First, samples were added to sterile tubes pre-filled with ceramic beads and homogenized in 300 μL NE1 buffer (20 mM HEPES, 10 mM KCl, 1 mM MgCl2, 0.1% Triton X-100, 20% glycerol, 0.5 mM DTT, 1× Pierce Complete Protease Inhibitors) using a Bead Mill 24 homogenizer (Fisher Scientific, MA, USA). .. Samples were chilled on ice; 1 μL benzonase (#E1014-5KU; Sigma, MA, USA) was added per tube, briefly mixed, and allowed to incubate at room temperature for 15 min. A fraction of the homogenate was diluted in NE1 buffer, and protein concentrations were quantified using BioRad DC II (Bio-Rad, CA, USA) on an ID3 plate reader (Molecular Devices, CA, USA).

    Immunohistochemistry:

    Article Title: Impact of ΔF508 CFTR Mutation on Diaphragm Function During Acute Inflammation.
    Article Snippet: .. 131 132 Immunohistochemistry 133 Muscle samples were embedded in Cryomatrix (Thermo Scientific, USA), then snap-134 frozen in 2-methylbutane cooled with liquid nitrogen and stored at –80°C. ..

    Cell Culture:

    Article Title: Lyophilized bacteria-infected tumor cells for targeted immunotherapy of lung metastases and associated fibrosis
    Article Snippet: .. 4T1 cells were cultured in DMEM with 10% FBS, 1% penicillin/streptomycin (Gibco), 2% sodium bicarbonate (Gibco), 1% 1 M N-2-hydroxyethylpiperazine-N-2-ethane sulfonic acid (HEPES; Gibco), and 1% sodium pyruvate (Gibco). .. C57BL/6 mice (6-7 weeks, female) were purchased from Charles River Laboratories.

    Passaging:

    Article Title: Integrated mesenchymal and extracellular cues drive bioengineered liver tissue formation and function
    Article Snippet: .. Advanced DMEM/F12 (Gibco) supplemented with 1% (v/v) penicillin-streptomycin (Gibco), 1% (v/v) GlutaMax (Gibco), 10 mM HEPES (Gibco), was used as the basal medium to make organoid initiation medium, expansion medium (EM), differentiation medium (DM), and to wash organoids during passaging or sample collection. .. Other major materials used for organoid isolation and maintenance are as follows: type II collagenase (Gibco), dispase (Gibco), MatrigelTM (Corning), and non-attaching 24-well plates (M9312, Greiner, Merck).

    Concentration Assay:

    Article Title: ZEB1 Modifies VE-Cadherin Signaling in Lymphatic Endothelial Cells.
    Article Snippet: .. A permeabilizing solution of 0.3% triton in PBS was added for 5 min followed by blocking using 2% BSA in PBS (stock concentration of Thermo 10× blocker) for 1 h at room temperature. ..

    Injection:

    Article Title: Cr III and Cr VI, but Not Cr II, Enhance Cr Incorporation Into the Exoskeleton and Inhibit Ca and Mg Flux to the Exoskeleton During Postecdysial Mineralization of the Blue Crab, Callinectes sapidus.
    Article Snippet: Cr is reportedly present in crustacean exoskeleton.. Using Callinectes sapidus as the model, this study addressed during which phase of the molting cycle Cr is deposited to the exoskeleton and how Cr in different valencies impacts this process and exoskeletal mineralization.. We hypothesized that due to Cr II and Ca being both divalent, Cr II would promote Cr incorporation into the shell during postecdysial mineralization, thereby adversely affecting mineralization more than either Cr III or Cr VI.

    Saline:

    Article Title: Cr III and Cr VI, but Not Cr II, Enhance Cr Incorporation Into the Exoskeleton and Inhibit Ca and Mg Flux to the Exoskeleton During Postecdysial Mineralization of the Blue Crab, Callinectes sapidus.
    Article Snippet: Cr is reportedly present in crustacean exoskeleton.. Using Callinectes sapidus as the model, this study addressed during which phase of the molting cycle Cr is deposited to the exoskeleton and how Cr in different valencies impacts this process and exoskeletal mineralization.. We hypothesized that due to Cr II and Ca being both divalent, Cr II would promote Cr incorporation into the shell during postecdysial mineralization, thereby adversely affecting mineralization more than either Cr III or Cr VI.



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    Senescent Microenvironment-Educated Mesenchymal Stem Cells Release High-Affinity Senescent NPC Domesticated Extracellular Vesicles. (A) Schematic diagram of the experimental setup for educating MSCs with SASP-CM to generate D-EVs versus N-EVs. (B) Confocal microscopy images showing different EVs internalization by senescent NPCs after 12 h in vitro. (C) Flow cytometry and quantification analysis of different EVs uptake by senescent NPCs. (D) In vivo validation of the senescent niche. Representative fluorescence images following injection of senescence-tracer (Red). (E) In vivo PKH26-labeled D-EVs tracking. (F) Representative SA-β-Gal images and quantification of MSCs treated with SASP-CM or not. (G) Gene Ontology (GO) analysis confirming enrichment of external encapsulating structure organization and cytokine production in Biological Process (BP) categories. (H) Heatmap indicating gene expression associated with EVs biogenesis within D-MSCs and N-MSCs. (I) Heatmap indicating gene expression associated with cytokine production within D-MSCs and N-MSCs. (J and L) Gene Ontology (GO) analysis confirming enrichment of terms related to vesicle organization and transport in the Cellular Component (CC) categories. (K) Western blot analysis confirmed core senescence markers p16 and p21 and DNA damage marker γ-H2AX in N-MSC and D-MSC. (M) Western blot analysis confirmed the expression of CD9, <t>CD63,</t> <t>TSG101,</t> <t>Calnexin,</t> and GM130 in MSC-EVs, N-EVs, or D-EVs. (N) TEM images showing the morphology and size of MSC-derived EVs, N-EVs, and D-EVs. (O) NTA shows size distribution in MSC-EVs, N-EVs, or D-EVs. The data were presented as mean ± SD. n = 3, ns, not significant; ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.
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    Senescent Microenvironment-Educated Mesenchymal Stem Cells Release High-Affinity Senescent NPC Domesticated Extracellular Vesicles. (A) Schematic diagram of the experimental setup for educating MSCs with SASP-CM to generate D-EVs versus N-EVs. (B) Confocal microscopy images showing different EVs internalization by senescent NPCs after 12 h in vitro. (C) Flow cytometry and quantification analysis of different EVs uptake by senescent NPCs. (D) In vivo validation of the senescent niche. Representative fluorescence images following injection of senescence-tracer (Red). (E) In vivo PKH26-labeled D-EVs tracking. (F) Representative SA-β-Gal images and quantification of MSCs treated with SASP-CM or not. (G) Gene Ontology (GO) analysis confirming enrichment of external encapsulating structure organization and cytokine production in Biological Process (BP) categories. (H) Heatmap indicating gene expression associated with EVs biogenesis within D-MSCs and N-MSCs. (I) Heatmap indicating gene expression associated with cytokine production within D-MSCs and N-MSCs. (J and L) Gene Ontology (GO) analysis confirming enrichment of terms related to vesicle organization and transport in the Cellular Component (CC) categories. (K) Western blot analysis confirmed core senescence markers p16 and p21 and DNA damage marker γ-H2AX in N-MSC and D-MSC. (M) Western blot analysis confirmed the expression of CD9, <t>CD63,</t> <t>TSG101,</t> <t>Calnexin,</t> and GM130 in MSC-EVs, N-EVs, or D-EVs. (N) TEM images showing the morphology and size of MSC-derived EVs, N-EVs, and D-EVs. (O) NTA shows size distribution in MSC-EVs, N-EVs, or D-EVs. The data were presented as mean ± SD. n = 3, ns, not significant; ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.
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    Senescent Microenvironment-Educated Mesenchymal Stem Cells Release High-Affinity Senescent NPC Domesticated Extracellular Vesicles. (A) Schematic diagram of the experimental setup for educating MSCs with SASP-CM to generate D-EVs versus N-EVs. (B) Confocal microscopy images showing different EVs internalization by senescent NPCs after 12 h in vitro. (C) Flow cytometry and quantification analysis of different EVs uptake by senescent NPCs. (D) In vivo validation of the senescent niche. Representative fluorescence images following injection of senescence-tracer (Red). (E) In vivo PKH26-labeled D-EVs tracking. (F) Representative SA-β-Gal images and quantification of MSCs treated with SASP-CM or not. (G) Gene Ontology (GO) analysis confirming enrichment of external encapsulating structure organization and cytokine production in Biological Process (BP) categories. (H) Heatmap indicating gene expression associated with EVs biogenesis within D-MSCs and N-MSCs. (I) Heatmap indicating gene expression associated with cytokine production within D-MSCs and N-MSCs. (J and L) Gene Ontology (GO) analysis confirming enrichment of terms related to vesicle organization and transport in the Cellular Component (CC) categories. (K) Western blot analysis confirmed core senescence markers p16 and p21 and DNA damage marker γ-H2AX in N-MSC and D-MSC. (M) Western blot analysis confirmed the expression of CD9, <t>CD63,</t> <t>TSG101,</t> <t>Calnexin,</t> and GM130 in MSC-EVs, N-EVs, or D-EVs. (N) TEM images showing the morphology and size of MSC-derived EVs, N-EVs, and D-EVs. (O) NTA shows size distribution in MSC-EVs, N-EVs, or D-EVs. The data were presented as mean ± SD. n = 3, ns, not significant; ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.
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    Propagation of calcium signal within microglia after ATP stimulation (A) Baseline GCaMP8s expression. (B) Regions of interest (ROIs): one somatic (ROI 1) and two distal regions (ROI <t>2</t> <t>and</t> 3) were chosen. (C) Snapshots showing propagation of the fluorescence signal within the cell following ATP stimulation. (D) Normalized fluorescence traces (ΔF/F0, F0 = mean fluorescence intensity over 10 s prior to stimuli) recorded from ROIs in B. The period shaded in green indicates when ATP was present in the recording chamber. ROI 3 (most distal) exhibits spontaneous activity prior to stimulation, indicated by asterisks. Dashed vertical lines indicate time points (t0-t3) corresponding to images in C.
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    Propagation of calcium signal within microglia after ATP stimulation (A) Baseline GCaMP8s expression. (B) Regions of interest (ROIs): one somatic (ROI 1) and two distal regions (ROI <t>2</t> <t>and</t> 3) were chosen. (C) Snapshots showing propagation of the fluorescence signal within the cell following ATP stimulation. (D) Normalized fluorescence traces (ΔF/F0, F0 = mean fluorescence intensity over 10 s prior to stimuli) recorded from ROIs in B. The period shaded in green indicates when ATP was present in the recording chamber. ROI 3 (most distal) exhibits spontaneous activity prior to stimulation, indicated by asterisks. Dashed vertical lines indicate time points (t0-t3) corresponding to images in C.
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    Image Search Results


    Senescent Microenvironment-Educated Mesenchymal Stem Cells Release High-Affinity Senescent NPC Domesticated Extracellular Vesicles. (A) Schematic diagram of the experimental setup for educating MSCs with SASP-CM to generate D-EVs versus N-EVs. (B) Confocal microscopy images showing different EVs internalization by senescent NPCs after 12 h in vitro. (C) Flow cytometry and quantification analysis of different EVs uptake by senescent NPCs. (D) In vivo validation of the senescent niche. Representative fluorescence images following injection of senescence-tracer (Red). (E) In vivo PKH26-labeled D-EVs tracking. (F) Representative SA-β-Gal images and quantification of MSCs treated with SASP-CM or not. (G) Gene Ontology (GO) analysis confirming enrichment of external encapsulating structure organization and cytokine production in Biological Process (BP) categories. (H) Heatmap indicating gene expression associated with EVs biogenesis within D-MSCs and N-MSCs. (I) Heatmap indicating gene expression associated with cytokine production within D-MSCs and N-MSCs. (J and L) Gene Ontology (GO) analysis confirming enrichment of terms related to vesicle organization and transport in the Cellular Component (CC) categories. (K) Western blot analysis confirmed core senescence markers p16 and p21 and DNA damage marker γ-H2AX in N-MSC and D-MSC. (M) Western blot analysis confirmed the expression of CD9, CD63, TSG101, Calnexin, and GM130 in MSC-EVs, N-EVs, or D-EVs. (N) TEM images showing the morphology and size of MSC-derived EVs, N-EVs, and D-EVs. (O) NTA shows size distribution in MSC-EVs, N-EVs, or D-EVs. The data were presented as mean ± SD. n = 3, ns, not significant; ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.

    Journal: Bioactive Materials

    Article Title: Microenvironment-educated MSC-EVs loaded injectable smart hydrogel for targeting senescent nucleus pulposus cells and inhibiting ferroptosis against intervertebral disc degeneration

    doi: 10.1016/j.bioactmat.2026.02.030

    Figure Lengend Snippet: Senescent Microenvironment-Educated Mesenchymal Stem Cells Release High-Affinity Senescent NPC Domesticated Extracellular Vesicles. (A) Schematic diagram of the experimental setup for educating MSCs with SASP-CM to generate D-EVs versus N-EVs. (B) Confocal microscopy images showing different EVs internalization by senescent NPCs after 12 h in vitro. (C) Flow cytometry and quantification analysis of different EVs uptake by senescent NPCs. (D) In vivo validation of the senescent niche. Representative fluorescence images following injection of senescence-tracer (Red). (E) In vivo PKH26-labeled D-EVs tracking. (F) Representative SA-β-Gal images and quantification of MSCs treated with SASP-CM or not. (G) Gene Ontology (GO) analysis confirming enrichment of external encapsulating structure organization and cytokine production in Biological Process (BP) categories. (H) Heatmap indicating gene expression associated with EVs biogenesis within D-MSCs and N-MSCs. (I) Heatmap indicating gene expression associated with cytokine production within D-MSCs and N-MSCs. (J and L) Gene Ontology (GO) analysis confirming enrichment of terms related to vesicle organization and transport in the Cellular Component (CC) categories. (K) Western blot analysis confirmed core senescence markers p16 and p21 and DNA damage marker γ-H2AX in N-MSC and D-MSC. (M) Western blot analysis confirmed the expression of CD9, CD63, TSG101, Calnexin, and GM130 in MSC-EVs, N-EVs, or D-EVs. (N) TEM images showing the morphology and size of MSC-derived EVs, N-EVs, and D-EVs. (O) NTA shows size distribution in MSC-EVs, N-EVs, or D-EVs. The data were presented as mean ± SD. n = 3, ns, not significant; ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.

    Article Snippet: After blocked with 5% non-fat milk for 2 h at room temperature, the membranes were incubated with primary antibodies against GAPDH (1:5000, 104941-AP, Proteintech), TSG101 (1:1000, DF8427, Affinity), CD9 (1:1000, AF5139, Affinity), CD63 (1:2000, 25682-1-AP, Proteintech), Calnexin (1:5000, 10427-2-AP, Proteintech), GM130 (1:20000, 11308-1-AP, Proteintech), CXCR3 (1:5000, 26756-1-AP, Proteintech), CXCL10 (1:2000, 10937-1-AP, Proteintech), MMP3 (1:2000, 17873-1-AP, Proteintech), ADAMTS5 (DF13268, Affinity), P16 (AF5484, Affinity), P21 (10355-1-AP, Proteintech), GPX4 (1:1000, 381958, Zen-bio), SLC7A11 (1:1000, 26864-1-AP, Proteintech), ACSL4 (1:5000, 22401-1-AP, Proteintech) and Tubulin (1:10000, T40103 , Abmart) overnight at 4 °C.

    Techniques: Confocal Microscopy, In Vitro, Flow Cytometry, In Vivo, Biomarker Discovery, Fluorescence, Injection, Labeling, Gene Expression, Western Blot, Marker, Expressing, Derivative Assay

    Propagation of calcium signal within microglia after ATP stimulation (A) Baseline GCaMP8s expression. (B) Regions of interest (ROIs): one somatic (ROI 1) and two distal regions (ROI 2 and 3) were chosen. (C) Snapshots showing propagation of the fluorescence signal within the cell following ATP stimulation. (D) Normalized fluorescence traces (ΔF/F0, F0 = mean fluorescence intensity over 10 s prior to stimuli) recorded from ROIs in B. The period shaded in green indicates when ATP was present in the recording chamber. ROI 3 (most distal) exhibits spontaneous activity prior to stimulation, indicated by asterisks. Dashed vertical lines indicate time points (t0-t3) corresponding to images in C.

    Journal: STAR Protocols

    Article Title: Protocol for differentiation and efficient AAV-mediated gene delivery to hiPSC-derived microglia for functional studies

    doi: 10.1016/j.xpro.2026.104455

    Figure Lengend Snippet: Propagation of calcium signal within microglia after ATP stimulation (A) Baseline GCaMP8s expression. (B) Regions of interest (ROIs): one somatic (ROI 1) and two distal regions (ROI 2 and 3) were chosen. (C) Snapshots showing propagation of the fluorescence signal within the cell following ATP stimulation. (D) Normalized fluorescence traces (ΔF/F0, F0 = mean fluorescence intensity over 10 s prior to stimuli) recorded from ROIs in B. The period shaded in green indicates when ATP was present in the recording chamber. ROI 3 (most distal) exhibits spontaneous activity prior to stimulation, indicated by asterisks. Dashed vertical lines indicate time points (t0-t3) corresponding to images in C.

    Article Snippet: Dulbecco’s phosphate buffered saline without Ca 2+ and Mg 2+ , DPBS (−/−) , Thermo Fisher Scientific , 14190–086.

    Techniques: Expressing, Fluorescence, Activity Assay

    Journal: STAR Protocols

    Article Title: Protocol for differentiation and efficient AAV-mediated gene delivery to hiPSC-derived microglia for functional studies

    doi: 10.1016/j.xpro.2026.104455

    Figure Lengend Snippet:

    Article Snippet: Dulbecco’s phosphate buffered saline without Ca 2+ and Mg 2+ , DPBS (−/−) , Thermo Fisher Scientific , 14190–086.

    Techniques: Virus, Recombinant, Saline, Plasmid Preparation, Expressing, Software, Hood, Sterility, Electron Microscopy, Inverted Microscopy, Flow Cytometry, Microscopy, Cell Culture, Fluorescence, Imaging, Dispersion