Tag: M.W=200-250

In 2021.0 ACS OMEGA published article about HEAVY-METAL IONS; LEAD REMOVAL; POLYMER; NANOFIBERS; COMPOSITE; LIGNIN in [Wang, Rui; Huang, Shuang-hui; Wang, Qiu-yue; Hu, Qiuhui; Peng, Si; Zhou, Qing-han] Southwest Minzu Univ, Sch Chem & Environm, Natl Ethn Affairs Commiss, Key Lab Basic Chem, Chengdu 610041, Peoples R China; [Lin, Juan] Chengdu Med Coll, Sch Biomed Sci & Technol, Chengdu 610500, Peoples R China; [Wu, Li-na] Chengdu Med Coll, Dept Anat & Histol & Embryol, Dev & Regenerat Key Lab Sichuan Prov, Chengdu 610500, Peoples R China in 2021.0, Cited 38.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7. Product Details of 56-17-7

The efficient selectivity of heavy metal ions from wastewater is still challenging but gains great public attention in water treatment on a world scale. In this study, the novel disulfide cross-linked poly(methacrylic acid) iron oxide (Fe3O4@S-S/PMAA) nanoparticles with selective adsorption, improved adsorption capability, and economic reusability were designed and prepared for selective adsorption of Pb(II) ions in aqueous solution. In this study, nuclear magnetic resonance, dynamic light scattering, scanning electron microscopy, X-ray diffraction, vibrating sample magnetometry, and thermogravimetric analysis were utilized to study the chemophysical properties of Fe3O4@S-S/PMAA. The effect of different factors on adsorption properties of the Fe3O4@S-S/PMAA nanoparticles for Co(II) and Pb(II) ions in aqueous solution was explored by batch adsorption experiments. For adsorption mechanism investigation, the adsorption of Fe3O4@S-S/PMAA for Co(II) and Pb(II) ions can be better fitted by a pseudo-second-order model, and the adsorption process of Fe3O4@S-S/PMAA for Co(II) and Pb(II) matches well with the Freundlich isotherm equation. Notably, in the adsorption experiments, the Fe3O4@S-S/PMAA nanoparticles were demonstrated to have a maximum adsorption capacity of 48.7 mg.g(-1) on Pb(II) ions with a selective adsorption order of Pb2+ > Co2+ > Cd2+ > Ni2+ > Cu2+ > Zn2+ > K+ > Na+ > Mg2+ > Ca2+ in the selective experiments. In the regeneration experiments, the Fe3O4@S-S/PMAA nanoparticles could be easily recovered by desorbing heavy metal ions from the adsorbents with eluents and showed good adsorption capacity for Co(II) and Pb(II) after eight recycles. In brief, compared to other traditional nanoadsorbents, the as-prepared Fe3O4@S-S/PMAA with improved adsorption capability and high regeneration efficiency demonstrated remarkable affinity for adsorption of Pb(II) ions, which will provide a novel technical platform for selective removal of heavy metal ions from actual polluted water.

Product Details of 56-17-7. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Wang, R; Lin, J; Huang, SH; Wang, QY; Hu, QH; Peng, S; Wu, LN; Zhou, QH or concate me.

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

Recently I am researching about IRON-OXIDE NANOPARTICLES; MAGNETIC-RESONANCE; POLYMERIC MICELLES; ENHANCED PERMEABILITY; CONTRAST AGENTS; NANOPLATFORM; CHITOSAN; DESIGN, Saw an article supported by the National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [21805108, 81901900]; Science and Technology Innovation Development Program of Jilin City [201831747, 201831749]; Science and Technology Project of Jilin Provincial Education Department of China [JJKH20190821KJ]; Outstanding Young Talents Program through a Science and Technology Development Plan Program of Jilin Province [20190103132JH]; Basic Science Research Program through a National Research Foundation of Korea – Korean Government (MEST) [NRF2017R1A5A1070259]; National Research Foundation of Korea (NRF) – Ministry of Science, ICT & Future Planning [NRF2017R1D1A1B03033988]. HPLC of Formula: C4H14Cl2N2S2. Published in ELSEVIER in AMSTERDAM ,Authors: Fu, Y; Jang, MS; Wang, NN; Li, Y; Wu, T; Lee, JH; Lee, DS; Yang, HY. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride

Multifunctional nanosystems that can transport therapeutic and diagnostic agents into tumor sites and activate their respective functions via tumor-microenvironment recognition are highly desirable for clinical applications. We fabricated pH and redox dual-activatable self-assembled nanotheranostics (named as DA-SNs) via coordination-driven self-assembly of chlorin e6 (Ce6) disulfide-linked pH sensitive polymer ligand, poly (isobutylene-alt-maleic anhydride-graft-methoxy-poly (ethyleneglycol)-graft-imidazole-graft-Cystamine-Ce6) [PIMA-mPEG-API-SS-Ce6], and gadolinium ions (Gd3+). DA-SNs exhibited uniform particle size of similar to 48 nm, excellent stability, and inherent biosafety. Negatively charged DA-SNs could prolong blood circulation time (t(1/2) = 2.91 h) and improve tumor accumulation. Moreover, DA-SNs could undergo surface charge switch from negative charge to positive one in a slightly acidic tumor extracellular environment (pH 6.8), thus enhancing cellular uptake. After entering tumor cells, fluorescence, photodynamic therapeutic activity, and T1MR contrast from DA-SNs could be activated within this intracellular environment with lowered pH and high level of GSH. Importantly, human tumors implanted in mice could be successfully visualized via distinct pH and redox dual-sensitive T1MR contrast and fluorescence imaging, indicating that DA-SNs could serve as a dual-modal MR/fluorescence imaging probe for tumor-targeting diagnosis. In addition, DA-SNs exhibited superior photodynamic therapeutic efficiency with negligible side effects. Therefore, this DA-SN shows great promise for synergistic photodynamic therapy and diagnostic imaging.

HPLC of Formula: C4H14Cl2N2S2. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Fu, Y; Jang, MS; Wang, NN; Li, Y; Wu, T; Lee, JH; Lee, DS; Yang, HY or concate me.

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

I found the field of Biochemistry & Molecular Biology; Chemistry; Polymer Science very interesting. Saw the article Preparation and characterization of carboxymethyl cellulose containing quaternized chitosan for potential drug carrier published in 2020.0. Product Details of 56-17-7, Reprint Addresses Wang, F (corresponding author), Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China.; Wang, F (corresponding author), Jiangsu Key Lab Chem & Utilizat Agr & Forest Biom, Nanjing, Jiangsu, Peoples R China.. The CAS is 56-17-7. Through research, I have a further understanding and discovery 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.

Product Details of 56-17-7. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Wang, F; Zhang, Q; Huang, KX; Li, JR; Wang, K; Zhang, K; Tang, XY or concate me.

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

Parmar, S; Pawar, SP; Iyer, R; Kalia, D in [Parmar, Sangeeta; Pawar, Sharad P.; Iyer, Ramkumar; Kalia, Dimpy] IISER Bhopal, Dept Chem, Bhopal Bypass Rd, Bhopal 462066, Madhya Pradesh, India published Aldehyde-mediated bioconjugation via in situ generated ylides in 2019.0, Cited 51.0. Recommanded Product: 2,2′-Disulfanediyldiethanamine dihydrochloride. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

A technically simple approach for rapid, high-yielding and site-selective bioconjugation has been developed for both in vitro and cellular applications. This method involves the generation of maleimido-phosphonium ylides via 4-nitrophenol catalysis under physiological conditions followed by their Wittig reactions with aldehyde-appended biomolecules.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Parmar, S; Pawar, SP; Iyer, R; Kalia, D or concate me.. Recommanded Product: 2,2′-Disulfanediyldiethanamine dihydrochloride

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

Choi, J; Kim, SY in [Choi, Jongseon; Kim, So Yeon] Chungnam Natl Univ, Grad Sch Energy Sci & Technol, Daejeon 34134, South Korea; [Kim, So Yeon] Chungnam Natl Univ, Coll Educ, Dept Chem Engn Educ, Daejeon 34134, South Korea published Photothermally enhanced photodynamic therapy based on glutathione-responsive pheophorbide a-conjugated gold nanorod formulations for cancer theranostic applications in 2020.0, Cited 66.0. Category: thiazines. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

Nanocarriers have provided a new platform for the selective delivery of therapeutic agents into targeted cells and tissues using safe, efficient, and tractable routes. In particular, the integration of multiple therapeutic/diagnostic modalities into a single system has the great potential of enhancing theranostic efficiency against serious diseases with reduced side effects. In this study, a new light-triggered theranostic system using photosensitizer-conjugated gold nanorods (AuNR) with glutathione (GSH)-sensitive linkages was developed for cancer imaging and combinational phototherapy of photodynamic therapy (PDT) and photothermal therapy (PTT) to achieve a synergistic cancer treatment. AuNRs with various aspect ratios were prepared as photothermal agents, and then a folic acid (FA)-PEG block copolymer (FAP) and pheophorbide a (Pheo) were chemically conjugated to the surface of AuNRs for active tumor targeting and PDT, respectively. The configuration of Pheo-conjugated AuNR nanocarriers has been precisely controlled through adjusting the feed composition ratio and the relationship between aspect ratio and absorption band of AuNRs. In particular, an AuNR with an aspect ratio of 3.84 and longitudinal plasmon resonance at 873 nm (Pheo-conjugated AuNR100) exhibited superior performance in singlet oxygen generation, photothermal conversion effect, and GSH-mediated selective release of Pheo. Moreover, it also showed tumor targeting activity and a PDT-PTT synergistic effect. These results indicate that this multifunctional AuNR system with tumor targeting ability and GSH-sensitive linkages would be highly efficient for noninvasive cancer treatment by integrating cancer imaging diagnostics and synergistic therapy. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Choi, J; Kim, SY or concate me.. Category: thiazines

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

Jiang, JW; Zhong, XM; Zhang, HY; Wang, CL in [Jiang, Jianwei; Zhong, Xiaoming] Zhejiang Chinese Med Univ, Coll Pharmaceut Sci, 548 Binwen Rd, Hangzhou 310053, Zhejiang, Peoples R China; [Jiang, Jianwei; Zhang, Hongyan; Wang, Chunlei] Zhejiang Canc Hosp, Dept Pharm, 38 Guangji Rd, Hangzhou 310022, Zhejiang, Peoples R China published A novel corona core-shell nanoparticle for enhanced intracellular drug delivery in 2020.0, Cited 26.0. HPLC of Formula: C4H14Cl2N2S2. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

Drugs, including small molecule anticancer drugs, have to be delivered and released into the cytoplasm or nucleus in order to elicit a therapeutic effect. In the present study, a novel corona core-shell nanoparticle was proposed for enhanced cellular uptake and light-responsive intracellular release. Light-responsive core-shell nanoparticles, i.e., gold nanoparticles-coated liposomes (CS), were prepared and further modified with hyaluronic acid (HA) (CCS). HA modification enhances the endocytosis of the nanoparticles by HA receptor-expressing cells, while the plasmonic properties of gold nanoparticles enable their light-triggered drug release. The results demonstrated that the uptake of CCS in HA receptor-expressing MDA-MB-231R cells was significantly enhanced compared with unmodified CS. Nanosecond pulsed laser irradiation (700 nm; 100 mJ/cm(2); 5 pulses) rapidly triggered the intracellular release of a fluorescent dye, 6-carboxyfluorescein (6-CF), from CCS and CS trapped in endolysosomes. The released 6-CF was evenly distributed throughout the entire cytosol and nucleus. Finally, the cytotoxicity of doxorubicin towards MDA-MB-231 cells was significantly increased by CCS delivery upon pulsed laser irradiation. In conclusion, with enhanced cellular uptake and light-triggered intracellular release, CCS significantly enhanced the therapeutic effects of doxorubicin, and may serve as a promising avenue for intracellular drug delivery.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Jiang, JW; Zhong, XM; Zhang, HY; Wang, CL or concate me.. HPLC of Formula: C4H14Cl2N2S2

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

An article Redox-responsive blend hydrogel films based on carboxymethyl cellulose/chitosan microspheres as dual delivery carrier WOS:000474673600047 published article about FACILE FABRICATION; DRUG-DELIVERY; PH; NANOPARTICLES in [Wang, Fang; Zhang, Qian; Li, Xinxia; Huang, Kexin; Shao, Wei; Huang, Chaobo] Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China; [Yao, Dawei] Nanjing Agr Univ, Coll Vet Med, Nanjing 210095, Jiangsu, Peoples R China in 2019.0, Cited 27.0. Formula: C4H14Cl2N2S2. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

A simple method to fabricate redox-responsive composite hydrogel films via incorporating chitosan (CS) micro spheres into carboxymethyl cellulose (CMC) hydrogel using a di-sulphide cross-linker cystamine dihydrochloride (CYS) have done in this paper. Dual drugs, an anticancer, 5-Fluorouracil (5-FU) and an antibiotic, Tetracycline Hydrochloride (TH) were used as model drugs. The prepared composite hydrogel films were characterized using FTIR, SEM, rheology measurement, mechanical and swelling tests. Our results showed that the well dispersed spherical CS microspheres endowed hydrogel film increased mechanical properties and swellability. In vitro drug release displayed an accelerated release under weak acidic or reducing media. The in vitro cytotoxicity and cell apoptosis studies showed the drug-loaded composite film caused enhanced inhibition to HepG2 cells in presence of glutathione (GSH). Moreover, the film has exhibited excellent antimicrobial efficacy against E.coli and Staphylococcus aureus. Therefore, our simple and effective dual drug-loaded system has the potential to be used for cancer therapy in the future. (C) 2019 Elsevier B.V. All rights reserved.

Formula: C4H14Cl2N2S2. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Wang, F; Zhang, Q; Li, XX; Huang, KX; Shao, W; Yao, DW; Huang, CB or concate me.

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

Application In Synthesis of 2,2′-Disulfanediyldiethanamine dihydrochloride. Authors Zhou, J; Wu, RN; Chen, YR; Tan, YB in ELSEVIER published article about in [Zhou, Jing; Wu, Ruonan; Chen, Yanru; Tan, Yebang] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China; [Tan, Yebang] Shandong Univ, Key Lab Special Funct Aggregated Mat, Minist Educ, Jinan 250100, Peoples R China in 2021.0, Cited 42.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

A triply responsive amphiphilic polymer containing poly (ethylene glycol) (PEG) and pyrene linked by a disulfide bond (PEO-SS-PY) was synthesized. Benefiting from its amphiphilicity, PEO-SS-PY could self-assemble into 126 nm micelles in water. PEO-SS-PY with CB[7] forms a 1:1 pseudorotaxane polymer (PEO-SS-Py@CB[7]) in aqueous solution. After the formation of host-guest complex, the micelles size increased to 136 nm and the fluorescence emission intensity increased. Glutathione would break the disulfide bond, leading to the dissociation of the micelles. Spermine and adamantanamine hydrochloride would dissociate the host-guest complex, leading to change of micelle size and decrease of fluorescence intensity. More interestingly, this self-assembly micelle displayed highly sensitive response to Fe3+. Because the effective absorption of Fe3+ hindered the absorption of PEO-SS-Py@CB[7] at the excitation wavelength of 405 nm, Fe3+ distinctly quenched the fluorescence emission of PEO-SS-Py@CB[7], whereas, a very low changes of intensity was observed for other metal ions. Results of this paper provide a new idea for the combination of metal ion detection and controlled release.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Zhou, J; Wu, RN; Chen, YR; Tan, YB or concate me.. Application In Synthesis of 2,2′-Disulfanediyldiethanamine dihydrochloride

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