Day: December 29, 2021

HPLC of Formula: C4H14Cl2N2S2. I found the field of Chemistry very interesting. Saw the article Combined pH-responsive chemotherapy and glutathione-triggered photosensitization to overcome drug-resistant hepatocellular carcinoma – a SPP/JPP Young Investigator Award paper published in 2020.0, Reprint Addresses Lo, PC (corresponding author), City Univ Hong Kong, Dept Biomed Sci, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China.. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride.

Doxorubicin (DOX) resistance, which results in a reduced accumulation of DOX in the nucleus and hence decreased DNA damage, is a major challenge for chemotherapy against hepatocellular carcinoma. In this paper, we combined chemotherapy with photodynamic therapy (PDT) to combat DOX-resistant human hepatocellular carcinoma cells. We have prepared the polymeric micelles conjugating with DOX and zinc(II) phthalocyanine (ZnPc) through a pH-responsive hydrazone linker and a glutathione (GSH)-responsive disulfide linker, respectively. The polymeric micelles (DOX-ZnPc-micelles) exhibited a spherical shape with a size of about 98 mn diameter and showed excellent stability in aqueous solution. Due to the self-quenching of the ZnPc inside the micelles, DOX-ZnPc-micelles did not emit fluorescence upon red light irradiation. Drug release experiments verified that DOX and ZnPc could be released under acidic conditions and reducing environments, respectively. A higher concentration of DOX was internalized into DOX-resistant R-HepG2 cells through the delivery of polymeric micelles when compared with the free DOX, hence DOX-ZnPc-micelles exhibited a significant enhancement in anticancer activity. The IC50 value of DOX against R-HepG2 cells was found to be 21 mu M when combined with PDT and it was 5-fold less than that of a single treatment of DOX (102 mu M). The DOX-ZnPc-micelles could induce cell apoptosis and necrosis on R-HepG2 cells by combined therapeutic modalities, while these micelles induced only apoptosis on IiepG2 cells. We have demonstrated that utilization of polymeric micelles can significantly enhance the cellular uptake and cytotoxicity of DOX against R-HepG2 cells when compared with free DOX. Moreover, PDT can act as an adjuvant therapeutic modality and combine with chemotherapy to further improve therapeutic efficacy. Overall speaking, DOX-ZnPc-micelles can overcome DOX resistance and induce a synergistic therapeutic effect against DOX-resistant R-HepG2 cells, hence improving the therapeutic efficacy when compared with monotherapy.

HPLC of Formula: C4H14Cl2N2S2. Welcome to talk about 56-17-7, If you have any questions, you can contact Gao, D; Lo, PC or send Email.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

SDS of cas: 56-17-7. In 2020.0 J BIOMED MATER RES B published article about MESENCHYMAL STEM-CELLS; OPTIMIZATION; CULTURE; DIFFERENTIATION; EXPANSION; SYSTEM; GROWTH; HMSCS in [Dosta, Pere; Ferber, Shiran; Zhang, Yi; Wang, Kui; Ros, Albert; Artzi, Natalie] MIT, Inst Med Engn & Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA; [Dosta, Pere; Ferber, Shiran; Zhang, Yi; Wang, Kui; Ros, Albert; Artzi, Natalie] Harvard Med Sch, Brigham & Womens Hosp, Div Engn Med, Dept Med, Boston, MA 02115 USA; [Uth, Nicholas; Levinson, Yonatan; Abraham, Eytan] Res & Technol, Walkersville, MD USA; [Artzi, Natalie] Broad Inst Harvard & MIT, Cambridge, MA USA in 2020.0, Cited 33.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

Microcarriers, including crosslinked porous gelatin beads (Cultispher G) are widely used as cell carriers for cell therapy applications. Microcarriers can support a range of adherent cell types in stirred tank bioreactor culture, which is scalable up to several thousands of liters. Cultispher G in particular is advantageous for cell therapy applications because it can be dissolved enzymatically, and thus cells can be harvested without the need to perform a large-scale cell-bead filtration step. This enzymatic dissolution, however, is challenged by the slow degradation of the carriers in the presence of enzymes as new extracellular matrix is being deposited by the proliferating cells. This extended dissolution timelimits the yield of cell recovery while compromising cellular viability. We report herein the development of crosslinked porous gelatin beads that afford rapid, stimuli-triggered dissolution for facile cell removal using human mesenchymal stem cells (hMSC) as a model system. We successfully fabricated redox-sensitive beads (RS beads) and studied their cell growth, dissolution time and cell yield, compared to regular gelatin-based beads (Reg beads). We have shown that RS beads allow for much faster dissolution compared to Reg beads, supporting better hMSC detachment and recovery following 8 days of culture in spinner flasks, or in 3L bioreactors. These newly synthesized RS beads show promise as cellular microcarriers and can be used for scale-up manufacturing of different cell types while providing on-demand degradation for facile cell retrieval.

Welcome to talk about 56-17-7, If you have any questions, you can contact Dosta, P; Ferber, S; Zhang, Y; Wang, K; Ros, A; Uth, N; Levinson, Y; Abraham, E; Artzi, N or send Email.. SDS of cas: 56-17-7

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Polythiolactone-Decorated Silica Particles: A Versatile Approach for Surface Functionalization, Catalysis and Encapsulation WOS:000645991700001 published article about POLYMERIC MULTILAYER CAPSULES; MESOPOROUS SILICA; THIOLACTONE CHEMISTRY; GOLD NANOPARTICLES; COLLOIDAL SILICA; DRUG CARRIER; ONE-POT; LIGHT; NANOSTRUCTURES; THERAPY in [Kurka, Dustin Werner; Niehues, Maximilian; Ravoo, Bart Jan] Westfalische Wilhelms Univ Munster, Inst Organ Chem, Ctr Soft Nanosci, Corrensstr 36, D-48149 Munster, Germany; [Kurka, Dustin Werner; Niehues, Maximilian; Ravoo, Bart Jan] Busso Peus Str 10, D-48149 Munster, Germany; [Kudruk, Sergej; Gerke, Volker] Westfalische Wilhelms Univ Munster, Inst Med Biochem, Ctr Mol Biol Inflammat, Von Esmarch Str 56, D-48149 Munster, Germany in 2021.0, Cited 98.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7. COA of Formula: C4H14Cl2N2S2

The surface chemistry of colloidal silica has tremendous effects on its properties and applications. Commonly the design of silica particles is based on their de novo synthesis followed by surface functionalization leading to tailormade properties for a specific purpose. Here, the design of robust precursor polymer-decorated silica nano- and microparticles is demonstrated, which allows for easy post-modification by polymer embedded thiolactone chemistry. To obtain this organic-inorganic hybrid material, silica particles (SiO2P) were functionalized via surface-initiated atom transfer radical polymerization (SI-ATRP) with poly(2-hydroxyethyl acrylate) (PHEA)-poly(thiolactone acrylamide (PThlAm) co-polymer brushes. Exploiting the versatility of thiolactone post-modification, a system was developed that could be used in three exemplary applications: 1) the straightforward molecular post-functionalization to tune the surface polarity, and therefore the dispersibility in various solvents; 2) the immobilization of metal nanoparticles into the polymer brushes via the in situ formation of free thiols that preserved catalytic activity in a model reaction; 3) the formation of redox-responsive, permeable polymer capsules by crosslinking the thiolactone moieties with cystamine dihydrochloride (CDH) followed by dissolution of the silica core.

Bye, fridends, I hope you can learn more about C4H14Cl2N2S2, If you have any questions, you can browse other blog as well. See you lster.. COA of Formula: C4H14Cl2N2S2

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Recently I am researching about FACILE FABRICATION; HYDROGEL FILMS; DELIVERY; PH; MICELLES; RELEASE, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31200451]. Published in ELSEVIER in AMSTERDAM ,Authors: Wang, F; Zhang, Q; Huang, KX; Li, JR; Wang, K; Zhang, K; Tang, XY. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride. Quality Control of 2,2′-Disulfanediyldiethanamine dihydrochloride

The objective of this study was to synthesize and characterize cystamine dihydrochloride (CYS) crosslinked carboxymethyl cellulose/quaternized chitosan (CMC/HACC) composite hydrogel film. Firstly, the glycidyl-based quaternary ammonium chitosan derivative (HACC) was synthesized using nucleophilic substitution reaction. Then HACC was analyzed by FTIR, (HNMR)-H-1 spectra and the composite films at different blending ratio of CMC and HACC were studied by rheology measurement, mechanical and swelling tests. When the composite films were prepared under optimized conditions (CMC: HACC = 7:1), they showed excellent mechanical properties (with improved 93.3% tensile strength and 2.3% elongation at break) and swellability (equilibrium swelling ratio increased 270%) compared to pure CMC film. 5-Fluorouracil (5-FU) was used as drug model which has broad-spectrum anticancer properties. The 5-FU/CMC/HACC composite films showed redox and pH responsive of drug release properties along with well biocompatibility. The in vitro cytotoxicity and cell apoptosis studies showed the drug loaded composite films with obvious toxicity against HepG2 cells especially in the presence of GSH. In addition, CMC/HACC composite films showed good antibacterial against S. aureus and E. coli, while pure CMC film had no antimicrobial activities. It can be concluded that CMC/HACC composite films can be potentially used as targeted drug delivery system. (C) 2019 Elsevier B.V. All rights reserved.

Quality Control of 2,2′-Disulfanediyldiethanamine dihydrochloride. Bye, fridends, I hope you can learn more about C4H14Cl2N2S2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Zhang, YB; Liu, SY; Li, TY; Zhang, LQ; Azhar, U; Ma, JC; Zhai, CC; Zong, CY; Zhang, SX in [Zhang, Yabin; Liu, Shuyan; Li, Tianyu; Zhang, Luqing; Azhar, Umair; Ma, Jiachen; Zhai, Congcong; Zong, Chuanyong; Zhang, Shuxiang] Univ Jinan, Sch Chem & Chem Engn, Shandong Prov Key Lab Fluorine Chem & Chem Mat, Jinan 250022, Peoples R China published Cytocompatible and non-fouling zwitterionic hyaluronic acid-based hydrogels using thiol-ene click chemistry for cell encapsulation in 2020.0, Cited 49.0. Recommanded Product: 56-17-7. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

In this work, a facile click reaction strategy is employed to form hydrogels in situ with cytocompatibility, biodegradability, self-healing property and resistance to protein. The thiol-functionalized zwitterionic carboxybetaine methacrylate copolymer, which take part as a cross-linker in the thiol-ene click reaction with the methacrylated hyaluronic acid. The hydrogels are obtained under the physiological condition without the presence of any copper catalyst and UV light. The hydrogel consisting of zwitterionic component shows an obvious reduction in protein adsorption and cell adhesion and avoid non-targeted factor interference in the biological experiments. The hydrogels also demonstrate adjustable degradation behavior. Human mesenchymal stem cells (hMSCs) are easily encapsulated into the hydrogels and remains metabolically active, indicating the excellent biocompatibility of the hydrogels. Additionally, the result of the cytokine secretion assays (IL-6 and TNF-alpha) has shown that this clickable hydrogel can serve to suppress inflammatory reactions and is beneficial for in vivo applications. Based on the above results, this clickable hydrogel with excellent performance can be an amenable platform for 3D cell encapsulation.

Welcome to talk about 56-17-7, If you have any questions, you can contact Zhang, YB; Liu, SY; Li, TY; Zhang, LQ; Azhar, U; Ma, JC; Zhai, CC; Zong, CY; Zhang, SX or send Email.. Recommanded Product: 56-17-7

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Bio-based healable non-isocyanate polyurethanes driven by the cooperation of disulfide and hydrogen bonds WOS:000599016100009 published article about SELF-HEALING ABILITY; SOYBEAN-OIL; CYCLIC CARBONATES; FREE ROUTES; ELASTOMERS; CHEMISTRY; POLYMERS; RECOVERY; DELIVERY; DIAMINES in [Dong, Jincheng; Liu, Binyuan; Ding, Huining] Hebei Univ Technol, Sch Chem Engn & Technol, Hebei Key Lab Funct Polymer, Tianjin 300130, Peoples R China; [Liu, Binyuan; Shi, Junbin; Liu, Ning; Dai, Bin] Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Shihezi 832003, Peoples R China; [Kim, Il] Pusan Natl Univ, Dept Polymer Sci & Engn, Busandaehag Ro 63-2, Busan 46241, South Korea in 2020.0, Cited 57.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7. Formula: C4H14Cl2N2S2

A series of isocyanate-free polyurethanes (NIPUs), showing an intrinsic thermo-healing performance, have been synthesized from sustainable vegetable oil-based cyclic carbonates and bio-based amines. The bio-based contents of the NIPUs are higher than 78%. Their thermo-mechanical and self-healing performances are tailored simply by varying the feed ratios of the amines employed. The biomass linoleic acid dimer-based diamine plays a positive role in maintaining the higher thermal stability and good elasticity of the prepared NIPUs, the cycloaliphatic isophorone diamine contributes to high tensile strength, and cysteine-derived disulfide-containing cystamine (CA) enhances the self-healing efficiency. The combination of intrinsic hydrogen bonds existed in the NIPU matrix with the dynamic exchange reactions of disulfide bonds and the enhanced flexibility of NIPU networks results in 98.1% self-healing efficiency at 25 degrees C. The contributions of disulfide bonds and hydrogen bonds to the healing efficiency were estimated by adjusting the composition of NIPUs, showing that the contribution of disulfide bonds to the healing ability is about 45.3% even at a low amount of CA (6.0 wt%).

Formula: C4H14Cl2N2S2. Welcome to talk about 56-17-7, If you have any questions, you can contact Dong, JC; Liu, BY; Ding, HN; Shi, JB; Liu, N; Dai, B; Kim, I or send Email.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Redox-Responsive Heparin-Chlorambucil Conjugate Polymeric Prodrug for Improved Anti-Tumor Activity WOS:000519848300043 published article about DRUG-DELIVERY; NANOPARTICLES; COMBINATION; MICELLES; CELLS in [Andrgie, Abegaz Tizazu; Birhan, Yihenew Simegniew; Mekonnen, Tefera Worku; Hanurry, Endiries Yibru; Darge, Haile Fentahun; Chou, Hsiao-Ying; Tsai, Hsieh-Chih] Natl Taiwan Univ Sci & Technol, Grad Inst Appl Sci & Technol, Taipei 106, Taiwan; [Lee, Rong-Ho] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 402, Taiwan; [Tsai, Hsieh-Chih] Natl Taiwan Univ Sci & Technol, Adv Membrane Mat Ctr, Taipei 106, Taiwan in 2020.0, Cited 47.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7. COA of Formula: C4H14Cl2N2S2

Polymeric prodrug-based delivery systems have been extensively studied to find a better solution for the limitations of a single drug and to improve the therapeutic and pharmacodynamics properties of chemotherapeutic agents, which can lead to efficient therapy. In this study, redox-responsive disulfide bond-containing amphiphilic heparin-chlorambucil conjugated polymeric prodrugs were designed and synthesized to enhance anti-tumor activities of chlorambucil. The conjugated prodrug could be self-assembled to form spherical vesicles with 61.33% chlorambucil grafting efficiency. The cell viability test results showed that the prodrug was biocompatible with normal cells (HaCaT) and that it selectively killed tumor cells (HeLa cells). The uptake of prodrugs by HeLa cells increased with time. Therefore, the designed prodrugs can be a better alternative as delivery vehicles for the chlorambucil controlled release in cancer cells.

COA of Formula: C4H14Cl2N2S2. Welcome to talk about 56-17-7, If you have any questions, you can contact Andrgie, AT; Birhan, YS; Mekonnen, TW; Hanurry, EY; Darge, HF; Lee, RH; Chou, HY; Tsai, HC or send Email.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Boronate affinity sorbents based on thiol-functionalized polysiloxane-polymethacrylate composite materials in syringe format for selective extraction of glycopeptides WOS:000635090400004 published article about HYBRID MONOLITHIC COLUMN; ENRICHMENT in [Mompo-Rosello, Oscar; Vergara-Barberan, Maria; Lerma-Garcia, Maria Jesus; Simo-Alfonso, Ernesto F.; Herrero-Martinez, Jose Manuel] Univ Valencia, Dept Analyt Chem, C Dr Moliner 50, Valencia 46100, Spain in 2021.0, Cited 46.0. Recommanded Product: 56-17-7. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

In this work, two novel boronate affinity monolithic materials able to extract glycopeptides within a polypropylene syringe are described and compared. The first material was synthesized from glycidyl methacrylate (GMA)-based monoliths modified with poly-3-mercaptopropyl-methylsiloxane (PMPMS) followed by attachment of 4-vinylphenylboronic acid (VPBA) via thiol-ene click reaction. The second material was prepared by using gold nanoparticle (AuNP)-modified monoliths as substrate followed by subsequent attachment of PMPMS and VPBA. The resulting materials were used as sorbents for solid-phase extraction (SPE) to selectively preconcentrate glycopeptides from horseradish peroxidase (HRP) digests. The material that gave the superior performance was that prepared with AuNPs due to the presence of abundant boronic acid groups, being its practical applicability also examined. The hybrid material exhibited a satisfactory efficiency of glycopeptide enrichment (identifying 24 glycopeptides from a total of 27) in mixture of tryptic digests of HRP and bovine serum albumin (BSA) (1:100, w/w). The sorbent shows low sensitivity (0.5 fmol/?L), good adsorption capacity (25 mg g-1) and suitable reusability (over 10 times). Moreover, the hybrid monolith was successfully applied to the selective enrichment of glycopeptides from human serum digests, without any pretreatment, in which 85 glycopeptides were identified by nano-LC-MS/MS, suggesting a great potential for application in glycoproteome field.

Recommanded Product: 56-17-7. Welcome to talk about 56-17-7, If you have any questions, you can contact Mompo-Rosello, O; Vergara-Barberan, M; Lerma-Garcia, MJ; Simo-Alfonso, EF; Herrero-Martinez, JM or send Email.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem