A simple and straightforward polymer post-modification method for wearable difluoroboron β-diketonate luminescent sensors

Polymer ◽  
2021 ◽  
pp. 124449
Author(s):  
Xuepu Wang ◽  
Guangming Wang ◽  
Junbo Li ◽  
Xun Li ◽  
Kaka Zhang
Keyword(s):  
Luminescent Sensors ◽  
Modification Method ◽  
Post Modification

Metabolic engineering of glycosylated polyketide biosynthesis

2018 ◽  
Vol 2 (3) ◽  
pp. 389-403 ◽  
Author(s):  
Ramesh Prasad Pandey ◽  
Prakash Parajuli ◽  
Jae Kyung Sohng
Keyword(s):  
Natural Products ◽  
Metabolic Engineering ◽  
Value Added ◽  
Chemical Diversity ◽  
Yeast Cells ◽  
Microbial Cell Factories ◽  
Cell Factories ◽  
Modification Method ◽  
Post Modification ◽  
Microbial Biosynthesis

Microbial cell factories are extensively used for the biosynthesis of value-added chemicals, biopharmaceuticals, and biofuels. Microbial biosynthesis is also realistic for the production of heterologous molecules including complex natural products of plant and microbial origin. Glycosylation is a well-known post-modification method to engineer sugar-functionalized natural products. It is of particular interest to chemical biologists to increase chemical diversity of molecules. Employing the state-of-the-art systems and synthetic biology tools, a range of small to complex glycosylated natural products have been produced from microbes using a simple and sustainable fermentation approach. In this context, this review covers recent notable metabolic engineering approaches used for the biosynthesis of glycosylated plant and microbial polyketides in different microorganisms. This review article is broadly divided into two major parts. The first part is focused on the biosynthesis of glycosylated plant polyketides in prokaryotes and yeast cells, while the second part is focused on the generation of glycosylated microbial polyketides in actinomycetes.

Facile and efficient bromination of hydroxyl-containing polymers to synthesize well-defined brominated polymers

2017 ◽  
Vol 8 (14) ◽  
pp. 2189-2196 ◽  
Author(s):  
Houbo Zhou ◽  
Yi Chen ◽  
Christopher M. Plummer ◽  
Huahua Huang ◽  
Yongming Chen
Keyword(s):  
Modification Method ◽  
Post Modification

This article demonstrates a new post-modification method to synthesize well-defined brominated polymers based on the bromination of hydroxyl-containing polymers.

Synthesis of a cyclic-brush polymer with a high grafting density using activated ester chemistry via the “grafting onto” approach

2018 ◽  
Vol 9 (41) ◽  
pp. 5155-5163 ◽  
Author(s):  
Shuangshuang Zhang ◽  
Xiaoxiao Cheng ◽  
Junzhi Wang ◽  
Zhengbiao Zhang ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Ring Closure ◽  
Grafting Density ◽  
Brush Polymer ◽  
Modification Method ◽  
Post Modification ◽  
Grafting Onto ◽  
Brush Polymers

A concept for preparing cyclic-brush polymers with high grafting densities combining a ring-closure strategy and activated ester chemistry as a post-modification method via the grafting onto approach.

ANALISIS PREDIKSI POTENSI KEBANGKRUTAN PADA PT BANK MUAMALAT INDONESIA Tbk PERIODE 2012-2016 DENGAN MENGGUNAKAN METODE ALTMAN MODIFIKASI

2017 ◽  
Vol 5 (2) ◽  
pp. 287-324
Author(s):  
Dewi Laela Hilyatin
Keyword(s):  
Financial Performance ◽  
Financial Structure ◽  
Financial Statements ◽  
Financial Ratios ◽  
Z Score ◽  
Altman Analysis ◽  
Gray Area ◽  
Modification Method ◽  
A Company

Abstract Bankruptcy is a very essential issue that every company should be aware of. Bankruptcy of a company can be minimized by advanced prediction; such as analyzing the financial statements. This study discusses the financial performance of PT Bank Muamalat Indonesia Tbk, which indicates that there is a degression in some number of financial ratios, the closing of offices and firing of employees in 2012-2016, causing he fact that BMI must pay attention and improve its financial performance and anticipate the existence of a bankruptcy in the company. Based on Altman analysis modification for financial performance of PT Bank Muamalat Indonesia Tbk in 2012-2016, it found Z-Score value of 0,825, 0,659, 1,243, 0,982 and 0,892. Based on Z-Score criteria, PT Bank Muamalat Indonesia Tbk is predicted to experience problems in management and financial structure and also in potentially bankruptcy due to Z-Score value <1,1 while the highest Z-Score value is in 2014, which shows the value of Z-Score>1,1 and <2,6, which means the company is in the gray area, meaning the company’s category is not said to be bankrupt and also not healthy. Keywords: Bankruptcy, Altman Modification Method

SuFExable Polymers with Helical Structures Derived from Thionyl Tetrafluoride (SOF4)

2019 ◽  
Author(s):  
Suhua Li ◽  
Gencheng Li ◽  
Bing Gao ◽  
Sidharam P. Pujari ◽  
Xiaoyan Chen ◽  
...  
Keyword(s):  
Functional Polymers ◽  
Polymer Chains ◽  
New Materials ◽  
Helical Structures ◽  
Polymer Backbone ◽  
Silyl Ethers ◽  
Helical Polymer ◽  
Key Characteristics ◽  
Post Modification ◽  
Individual Polymer

The first SuFEx click chemistry synthesis of SOF<sub>4</sub>-derived copolymers based upon the polymerization of bis(iminosulfur oxydifluorides) and bis(aryl silyl ethers) is described. This novel class of SuFEx polymer presents two key characteristics: First, the newly created [-N=S(=O)F-O-] polymer backbone linkages are themselves SuFExable and primed to undergo further high-yielding and precise SuFEx-based post-modification with phenols or amines to yield branched functional polymers. Second, studies of individual polymer chains of several of these new materials indicate the presence of helical polymer structures, which itself suggests a preferential approach of new monomers onto the growing polymer chain upon the formation of the stereogenic linking moiety.

Two-step Enzymatic Modification Method to Enhance the Zn2+-chelating Activity and Antioxidant Activity of Zein

2020 ◽  
Vol 26 (2) ◽  
pp. 299-311
Author(s):  
Dan Li ◽  
Feng Zuo ◽  
Rui-fang Zhu ◽  
Chao Zhang ◽  
Dong-jie Zhang
Keyword(s):  
Antioxidant Activity ◽  
Enzymatic Modification ◽  
Chelating Activity ◽  
Modification Method

Three Zn(ii) coordination polymers constructed with a new amide-thiophene-derived bis-pyridyl ligand as ultrasensitive luminescent sensors for Hg(ii) and purines

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xiuli Wang ◽  
Jianxin Ma ◽  
Na Xu ◽  
Yue Wang ◽  
Jiayu Sun ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Luminescent Sensors ◽  
Pyridyl Ligand

A new amide-thiophene-derived ligand (4-bpft) was designed and used to construct three LCPs 1–3, which could detect Hg(ii), adenine, and guanine.

Impact of chemistry on the preparation and post-modification of multilayered hollow microcapsules

2021 ◽  
Author(s):  
Angana Borbora ◽  
Uttam Manna
Keyword(s):  
Chemical Interactions ◽  
Chemical Modifications ◽  
Post Modification

Different chemical interactions/bonding allowed LbL deposition of selected constituents, and further post-chemical modifications of chemically reactive multilayered microcapsules allowed to associate desired chemical functionalities.

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