Corrigendum to “Synthesis, drying process and medical application of polysaccharide-based aerogels” [Int. J. Biol. Macromol., 145, 2020, 1115–1128]

2021 ◽  
Vol 172 ◽  
pp. 597-598
Author(s):  
Mehrez E. El-Naggar ◽  
Sarah I. Othman ◽  
Ahmed A. Allam ◽  
Osama M. Morsy
Keyword(s):  
Medical Application ◽  
Drying Process

Synthesis, drying process and medical application of polysaccharide-based aerogels

2020 ◽  
Vol 145 ◽  
pp. 1115-1128 ◽  
Author(s):  
Mehrez E. El-Naggar ◽  
Sarah I. Othman ◽  
Ahmed A. Allam ◽  
Osama M. Morsy
Keyword(s):  
Medical Application ◽  
Drying Process

EFFECT OF SILICA IN CALCIUM PHOSPHATE MATERIAL FOR BIOMEDICAL APPLICATION

2015 ◽  
Vol 77 (25) ◽  
Author(s):  
Nor Shahida Kader Bashah ◽  
Sudirman Sahid ◽  
Salina Sabudin ◽  
Shirin Ibrahim
Keyword(s):  
Calcium Phosphate ◽  
Spray Drying ◽  
Biomedical Application ◽  
Medical Application ◽  
Apatite Crystal ◽  
Drying Process ◽  
Sem Images ◽  
Chemical Technique ◽  
Si Content ◽  
Wet Chemical Technique

Calcium phosphate bioceramic materials has been widely used in medical field due to their compounds which have similarities with natural bone and teeth. Despite of these materials, silica was introduced in order to improve bioactivity level of the material. In this paper, biphasic calcium phosphate (BCP) was synthesized using calcium hydroxide (Ca(OH)­2) and orthophosphoric acid (H­3PO­4) as chemical precursors at Ca/P ratio 1.60 via wet chemical technique. Additionally silicon dioxide (SiO2) at 3 and 5 wt% was added into the mixture before proceeding with spray drying process. Apatite powder obtained after spray drying process was pressed into discs and sintered at 950oC to obtain biphasic mixture. Sintered Si-BCP discs were immersed in simulated body fluid (SBF) for predetermined time. Scanning Electron Microscope (SEM) images revealed that dissolution and precipitation of Si-BCP with 5% Si content occurred at day 3, while BCP without Si addition started at day 21. Formation of apatite crystal was observed on the surface of the samples. Due to this, Si-BCP has potential to be developed for quick healing medical application.

Video real-time imaging of artificial membranes during freeze-drying by cryo-electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 16-17
Author(s):  
Alan S. Rudolph ◽  
Ronald R. Price
Keyword(s):  
Real Time ◽  
Self Assembly ◽  
Freeze Drying ◽  
Video Capture ◽  
Drying Process ◽  
Artificial Membranes ◽  
The Past ◽  
Cryo Electron Microscopy ◽  
Spherical Structures ◽  
Capture Techniques

We have employed cryoelectron microscopy to visualize events that occur during the freeze-drying of artificial membranes by employing real time video capture techniques. Artificial membranes or liposomes which are spherical structures within internal aqueous space are stabilized by water which provides the driving force for spontaneous self-assembly of these structures. Previous assays of damage to these structures which are induced by freeze drying reveal that the two principal deleterious events that occur are 1) fusion of liposomes and 2) leakage of contents trapped within the liposome [1]. In the past the only way to access these events was to examine the liposomes following the dehydration event. This technique allows the event to be monitored in real time as the liposomes destabilize and as water is sublimed at cryo temperatures in the vacuum of the microscope. The method by which liposomes are compromised by freeze-drying are largely unknown. This technique has shown that cryo-protectants such as glycerol and carbohydrates are able to maintain liposomal structure throughout the drying process.

Medical Application of Hypnosis

1982 ◽  
Vol 27 (1) ◽  
pp. 62-62
Author(s):  
Lewis R. Wolberg
Keyword(s):  
Medical Application

Permasalahan Manajemen Usaha Mikro Studi Kasus Pada Pabrik Kerupuk UD. Manunggal Karsa Di Kel. Lebak Bulus Kec. Cilandak Kodya Jakarta Selatan

Liquidity ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Siti Maryama
Keyword(s):  
Organizational Structure ◽  
Financial Institutions ◽  
Raw Materials ◽  
Excess Demand ◽  
Motor Vehicles ◽  
Family Management ◽  
Drying Process ◽  
Earned Income ◽  
Qualitative Descriptive ◽  
Bad Weather

The purpose of the study are to (1) review the main problems faced by the factory of Kepuruk Manunggal Karsa (MK), and (2) assessing the entrepreneur attempts to be able to solve the problems faced. The research was carried out using qualitative descriptive design. The results showed that (1) the lack of supply of raw materials as a result of lack of capital. Sequel is due, the difficulty of the plant to meet consumer demand (excess demand). (2), the system of capital used is circulating capital (capital turnover). Earned income used up to finance the operation of the plant. (3) Innovation has been done in the form of deal with bad weather (rain) as an effort of crackers drying process is by using the oven. (4) There has been no cooperation with financial institutions. (5) There is no organizational structure as a modern factory for traditionally managed by family management. (6) Marketing using modes of transportation carts and motor vehicles.

Mathematical Models of Papermaking

2001 ◽  
Vol 6 (1) ◽  
pp. 9-19 ◽  
Author(s):  
A. Buikis ◽  
J. Cepitis ◽  
H. Kalis ◽  
A. Reinfelds ◽  
A. Ancitis ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Initial Value Problems ◽  
Moisture Transfer ◽  
Bound Water ◽  
Drying Process ◽  
Initial Value ◽  
First Order ◽  
Heat And Moisture ◽  
The Mathematical Model ◽  
The Web

The mathematical model of wood drying based on detailed transport phenomena considering both heat and moisture transfer have been offered in article. The adjustment of this model to the drying process of papermaking is carried out for the range of moisture content corresponding to the period of drying in which vapour movement and bound water diffusion in the web are possible. By averaging as the desired models are obtained sequence of the initial value problems for systems of two nonlinear first order ordinary differential equations. 

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