scholarly journals Novel Pervaporation Membranes Based on Biopolymer Sodium Alginate Modified by FeBTC for Isopropanol Dehydration

2021 ◽  
Vol 13 (11) ◽  
pp. 6092
Author(s):  
Anna Kuzminova ◽  
Mariia Dmitrenko ◽  
Anton Mazur ◽  
Sergey Ermakov ◽  
Anastasia Penkova
Keyword(s):  
Citric Acid ◽  
Transport Properties ◽  
Sodium Alginate ◽  
Optimal Transport ◽  
Metal Organic Framework ◽  
Modern Society ◽  
Ease Of Use ◽  
Spectroscopic Techniques ◽  
Environmental Friendliness ◽  
Isopropanol Dehydration

Modern society strives for the development of sustainable processes that are aimed at meeting human needs while preserving the environment. Membrane technologies satisfy all the principles of sustainability due to their advantages, such as cost-effectiveness, environmental friendliness, absence of additional reagents and ease of use compared to traditional separation methods. In the present work, novel green membranes based on sodium alginate (SA) modified by a FeBTC metal–organic framework were developed for isopropanol dehydration using a membrane process, pervaporation. Two kinds of SA-FeBTC membranes were developed: (1) untreated membranes and (2) cross-linked membranes with citric acid or phosphoric acid. The structural and physicochemical properties of the developed SA-FeBTC membranes were studied by spectroscopic techniques (FTIR and NMR), microscopic methods (SEM and AFM), thermogravimetric analysis and swelling experiments. The transport properties of developed SA-FeBTC membranes were studied in the pervaporation of water–isopropanol mixtures. Based on membrane transport properties, 15 wt % FeBTC was demonstrated to be the optimal content of the modifier in the SA matrix for the membrane performance. A membrane based on SA modified by 15 wt % FeBTC and cross-linked with citric acid possessed optimal transport properties for the pervaporation of the water–isopropanol mixture (12–100 wt % water): 174–1584 g/(m2 h) permeation flux and 99.99 wt % water content in the permeate.

Metal-Organic Framework Transistors for Dopamine Sensing

2021 ◽  
Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Two Dimensional ◽  
Metal Organic ◽  
Organic Framework

Two-dimensional (2D) conductive metal-organic frameworks (MOFs) can not only inherit the high porosity and tailorability of traditional MOFs but also exhibit unique charge transport properties, offering promising opportunities for applications...

Fe3+-Citric acid/ Sodium alginate hydrogel: A photo-responsive platform for rapid water purification

2021 ◽  
pp. 118269
Author(s):  
Yueshan Li ◽  
Zhisen Wang ◽  
Xiaoyu Wang ◽  
Bin Yan ◽  
Yinjie Peng ◽  
...  
Keyword(s):  
Citric Acid ◽  
Sodium Alginate ◽  
Water Purification ◽  
Alginate Hydrogel

Nickel-based metal-organic framework-derived Ni/NC/KB as separator coating for high capacity lithium-sulfur batteries

2021 ◽  
Author(s):  
Peisen Wu ◽  
Yongbo Wu ◽  
Kaiyin Zhu ◽  
Guozheng Ma ◽  
Xiaoming Lin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Storage Systems ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Energy Storage Systems ◽  
Environmental Friendliness ◽  
Lithium Sulfur Batteries ◽  
Metal Organic ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries have recently caught a growing number of attentions as next-generation energy storage systems on account of their outstanding theoretical energy density, environmental friendliness and economical nature. However,...

Synergistic effects of citric acid - sodium alginate on physicochemical properties of α-tricalcium phosphate bone cement

2019 ◽  
Vol 45 (2) ◽  
pp. 2146-2152 ◽  
Author(s):  
Haishan Shi ◽  
Wenqian Zhang ◽  
Xu Liu ◽  
Shenghui Zeng ◽  
Tao Yu ◽  
...  
Keyword(s):  
Citric Acid ◽  
Physicochemical Properties ◽  
Bone Cement ◽  
Sodium Alginate ◽  
Tricalcium Phosphate ◽  
Synergistic Effects

scholarly journals NMR microsystem for label-free characterization of 3D nanoliter microtissues

2020 ◽  
Author(s):  
Marco Grisi ◽  
Gaurasundar M. Conley ◽  
Kyle J. Rodriguez ◽  
Erika Riva ◽  
Lukas Egli ◽  
...  
Keyword(s):  
Early Stage ◽  
Cmos Technology ◽  
Time Frame ◽  
Ease Of Use ◽  
Chemical Information ◽  
Spectroscopic Techniques ◽  
Label Free ◽  
Alcoholic Fatty Liver ◽  
Non Invasive

AbstractPerforming chemical analysis at the nanoliter (nL) scale is of paramount importance for medicine, drug development, toxicology, and research. Despite the numerous methodologies available, a tool for obtaining chemical information non-invasively is still missing at this scale. Observer effects, sample destruction and complex preparatory procedures remain a necessary compromise1. Among non-invasive spectroscopic techniques, one able to provide holistic and highly resolved chemical information in-vivo is nuclear magnetic resonance (NMR)2,3. For its renowned informative power and ability to foster discoveries and life-saving applications4,5, efficient NMR at microscopic scales is highly sought after6–10, but so far technical limitations could not match the stringent necessities of microbiology, such as biocompatible handling, ease of use, and high throughput. Here we introduce a novel microsystem, which combines CMOS technology with 3D microfabrication, enabling nL NMR as a platform tool for non-invasive spectroscopy of organoids, 3D cell cultures, and early stage embryos. In this study we show its application to microlivers models simulating non-alcoholic fatty liver disease (NAFLD), demonstrating detection of lipid metabolism dynamics in a time frame of 14 days based on 117 measurements of single 3D human liver microtissues.

scholarly journals MULTIRESONANCE AND ENHANCED SYNCHRONIZATION IN STOCHASTICALLY COUPLED RATCHETS

2012 ◽  
Vol 22 (06) ◽  
pp. 1250141 ◽  
Author(s):  
B. R. NANA NBENDJO ◽  
U. E. VINCENT ◽  
PETER V. E. MCCLINTOCK
Keyword(s):  
Transport Properties ◽  
Optimal Transport ◽  
Noisy Environment ◽  
Efficient Control

We investigate the dynamics and synchronization of two inertia ratchets interacting indirectly through a stochastic dynamical environment. We examine resonant oscillations in their synchronous and asynchronous modes; and we determine the effects of the interaction with the environment on the system's response and synchronization. We show the occurrence of noise-induced multiresonance and noise-enhanced synchronization emerging from the ratchets' interaction with the noisy environment. The simultaneous quenching of the chaotic regimes, and the domain of gain parameters for efficient control, are identified. It is shown that optimal transport can be achieved, implying that an inertia ratchet can take advantage of its noisy environment to enhance its rich dynamical and transport properties.

Integrasi Sistem Pelaporan Kerusakan Laboratorium dan SMS Gateway Untuk Realtime Notification Laporan Kerusakan Melalui SMS Dengan Pendekatan Service Oriented Architecture (SOA)

Respati ◽  
2017 ◽  
Vol 12 (3) ◽  
Author(s):  
Yudi Susanto
Keyword(s):  
High Speed ◽  
Service Oriented Architecture ◽  
Reporting System ◽  
Modern Society ◽  
Ease Of Use ◽  
Short Message ◽  
Existing Problems ◽  
Service Oriented ◽  
Speed Up ◽  
Read Rate

INTISARILayanan Pesan Singkat atau Short Message Services(SMS) merupakan salah satu layanan jaringan telepon seluler yang digunakan untuk mengirimkan pesan pendek. Kemudahan dalam penggunaannya menjadikan SMS sebagai salah satu pengirim pesan yang banyak digunakan. Menurut Jamie Tolentino dalam artikelnya yang berjudul “Why are people still using SMS in 2015?” yang dipublikasikan dihalaman thenextweb.com mengatakan bahwa SMS merupakan cara berkomunikasi yang paling efektif dalam menjangkau pengguna dengan prosentasi 90 % dibaca dalam waktu satu menit. SMS adalah satu untuk semua solusi yang membuat siapa saja (yang mempunyai nomor ponsel) dapat dijangkau. Teknologi untuk mengirim dan menerima SMS tidak bergantung pada internet berkecepatan tinggi, yang pada dasarnya membuat siapa pun dalam masyarakat dapat dijangkau.Sistem Pelaporan Kerusakan Laboratorium merupakan sebuah sistem yang digunakan untuk mencatat berbagai permasalahan yang terjadi meliputi lokasi laboratorium, nomor komputer dan detil permasalahannya. Sistem informasi ini berbasiskan web dengan harapan sistem ini dapat diakses dari komputer manapun dan kapanpun. Dengan menggunakan sistem tersebut maka dapat dilihat secara detail segala permasalahan yang terjadi pada laboratorium sehingga pengelola laboratorium dapat menyiapkan langkah-langkah untuk menanganinya. Namun pada praktiknya banyak permasalahan yang tidak diselesaikan karena informasi permasalahan tersebut tidak sampai kepada para teknisi. Hal ini disebabkan karena untuk mengakses informasi kerusakan teknisi harus login melalui komputer sehingga memakan waktu. Dengan cara pengiriman notifikasi permasalahan yang terjadi pada laboratorium melalui sms maka setiap ada laporan permasalahan yang masuk ke Sistem Pelaporan Kerusakan akan langsung diteruskan ke teknisi secara langsung melalui pesan sms tanpa harus melakukan akses ke sistem. Hal ini dapat mempercepat proses sampainya informasi permasalahan laboratorium kepada teknisi sehingga penanganan permasalahan dapat dilakukan dengan cepat.Untuk mengintegrasikan Sistem Pelaporan Kerusakan Laboratorium dengan notifikasi SMS dapat dilakukan dengan pendekatan Service Oriented Architecture (SOA) sehingga proses integrasi tidak perlu merubah sistem yang sudah ada.Kata Kunci : Sistem Informasi, Service Oriented Architecture, SOA, Kylix, SMS GatewayABSTRACTThe Short Message Services (SMS) service is one of the mobile phone network services used to deliver short messages. Ease of use makes SMS as one of the most widely used message senders. According to Jamie Tolentino in his article entitled "Why are people still using SMS in 2015?" Published on page thenextweb.com said that SMS is the most effective way to reach users, with a 90 percent read rate in minutes. SMS is a one- size- fits- all solution which makes anybody (with a mobile number) reachable.The technology for sending and receiving SMS is not reliant on high speed internet, essentially making anyone in modern society reachable.Laboratory Damage Reporting System is a system used to record various problems that occur include the location of the laboratory, computer number and details of the problem. This information system is web based in the hope that this system can be accessed from any computer and anytime. By using the system it can be viewed in detail all the problems that occur in the laboratory so that the laboratory manager can prepare the steps to handle it. But in practice many problems are not resolved because the problem information is not up to the technicians. This is because to access the information the technician must log on through the computer so that it takes time.By way of notification of problems that occur in the laboratory through sms then any existing problems report into the Laboratory Damage Reporting System will be directly forwarded to the technician directly through sms messages without having to access the system. This can speed up the process of getting the information of laboratory problems to the technician so that problem handling can be done quickly.To integrate Laboratory Hazard Reporting System with SMS notification can be done with Service Oriented Architecture (SOA) approach so that the integration process does not need to change the existing system.Keywords : Information Systems, Service Oriented Architecture, SOA, Kylix, SMS Gateway

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