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In Hivechi et al., studies, it is found that the presence of Gel in PCL structure can enhance some properties such as composite strength, drug release, and biodegradability [19, 20].
As a result, FT-IR spectra cannot approve the presence of the drug in the structure of nanofibers since the peaks for both the clindamycin and PCL/Gel overlap in the spectrum.
This phenomenon can be due to the presence of hydrophilic functional groups in the clindamycin structure (Fig. 4) that help the water solubility of the drug.
Structure of clindamycin Fig 5.
Rocha, Encapsulation in food industry with emerging electrohydrodynamic techniques: Electrospinning and electrospraying–A review, Food Chemistry 339 (2021) 127850

The basic part of NDs has a complex structure where it is consists of three main components.
Special acknowledgement also dedicated to Department of Chemistry, Faculty of Science, Universiti Putra Malaysia.
Yang, Structure and electrochemical properties of electrospun carbon fiber composites containing graphene, J.
Hersam, Sorting carbon nanotubes by electronic structure using density differentiation, Nat.
Walls, Structure-based carbon nanotube sorting by sequence-dependent DNA assembly, Science. 302 (2003) 1545–1548

The performed research revealed the characteristics of monitoring the status of vegetation in order to obtain the necessary information, i.e. structure, actions and performances required to achieve an efficient system of monitoring the state of vegetation resources and to obtain the application maps for a precision crop management.
Various earth chemistry kits are available to measure the soil’s pH, azote, potassium and phosphorus level [6].

The Self-repair coatings are formed on the 45#steel worn surface while nothing on the cast-iron worn surface, study considers that metallographic structure and mechanical performance of cast iron are the prime causation resulting in no Self-repair coatings.
References [1] Qunji Xue, Weimin Liu: Progress in Chemistry(1997), 19(3) ,p311-317.

Eco-Friendly of Sound-Absorbing Material Based on Polyurethane-Urea with Natural Fiber Waste Mohammad Masykuria*, Herlina Nofitasarib and Romy Dyah Rahmawatic Department of Chemistry Education, Sebelas Maret University, Jl.
The morphological structure of the foam consisted of an open cell and a closed cell.
Fourier-transform infrared (FTIR) spectroscopy is a test to determine the chemical structure of materials.
These two microscopes were used to see the morphological structure clearly at low and high magnifications.
The results showed differences in the morphological structure of each observed sample.

Hierarchical structure composed of micro/nano-featherlike surface was obtained by acid etching.
Possible growth mechanism of featherlike hierarchical structure was discussed.
Finally, the hydrophobic triazine/silicon composition film was prepared and its structure and properties were analyzed.
FTIR was used to evaluate the structure and molecular composition of the DB film and DB/OTS composite film.
Journal Physical Chemistry.

Okere2 1 Department of Chemical Engineering, Imperial College London, SW7 2AZ, United Kingdom 2 Department of Chemistry, Nasarawa State University, PMB 1022, Keffi, Nigeria apaul.igboanusi@yahoo.com [Date received: 4 October 2010.
These hydrates are ice-like materials found in permafrost regions and certain continental margins of oceans (including offshore Nigeria) in which enormous quantities of natural gas molecules are trapped within cage structures of water molecules [3 - 5].
On the other hand, hydrate formed in the sediment within the HSZ is trapped by the sediment structure and forms a stable hydrate reservoir [6, 7].

Introduction β-Tricalcium phosphate (β-TCP), is widely used in the biomedical fields because of its osteoconductivity and biocompatibility to human tissue[1-2], and it is similar to bone mineral in composition and structure[3].
In order to verified the structure and purity of the product furthermore, the β-TCP was chose to test by FT-IR spectra (Fig. 1(a)), it could be seen that characteristic peaks of stretching vibration of PO43- at 1045 cm-1, 729 cm-1, 608 cm-1 and 553cm-1 respectively.
Chemistry Vol. 32(2004), p.1 [7] S.

Effect of hot rolling deformation on superplastic deformation behavior of TiNP/2014Al composite Huie Hu1,a and Liang Zhen2,b 1Department of Chemistry and Materials, Naval University of Engneering, Wuhan, 430033, China 2Department of Materials Science, Harbin Institute of Technology, Harbin, 150001, China ahuhuie-hit@163.com, blzhen@hit.edu.cn Key words: High strain rate superplasticity, Metal matrix composite, Hot deformation, Microstructure Abstract. 1.5 mm, 0.7 mm and 0.3 mm thicknesses TiNP/2014Al composite sheets were obtained by hot rolling deformation carried out on as-extruded TiNP/2014Al composite rod.
Introduction Metal matrix composites reinforced by particles are attractive for application to automobile components, aerospace structures, semi-conductor packaging and so on, due to their high specific elastic modulus and specific strength, excellent wear resistance and heat resistance, low thermal expansion and good dimensional stability [1].
On the other hand, the forming method is expected to allow a near-net shape forming of parts or structure components to reduce the cost.

The geometry parameters of spiral rectangular duct are that: duct cross-section size is 30mm × 17 mm, spiral duct is jointed by a inlet section of length L=210mm, 1/4 circle structure of pipe radius R=185mm, and different semicircle structures of pipe radius R=165mm, 145mm, 125mm, 105mm, 85mm and 65mm, etc..
Theoretical and experimental studies on water injectivity profile modification by using rigid plastic as perforation closer, Journal of Oilfield Chemistry, vol. 20, no. 2, pp. 113-118, 2003.