MARC details
| 000 -LEADER |
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| fixed length control field |
02667nam a22003137a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250714101009.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250714b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
TUPM |
| Language of cataloging |
English |
| Transcribing agency |
TUPM |
| Modifying agency |
TUPM |
| Description conventions |
rda |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
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| Classification number |
BTH RB 37 |
| Item number |
D45 2025 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Dela Cruz, Christian B. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
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| Title |
Green synthesis of silver nanoparticles using madre cacao (gliricidia sepium jacq.) leaves aqueous extract/ |
| Statement of responsibility, etc. |
Christian B. Dela Cruz, Shekinah P. Asencio, Yvonne Louise Kim F. Catama, and Shaira Joy T. Monreal.-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
95pages: |
| Dimensions |
29cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| 500 ## - GENERAL NOTE |
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| General note |
Bachelor's thesis<br/> |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
College Of Science.--<br/> |
| Degree type |
Bachelor of applied science in laboratory technology: |
| Name of granting institution |
Technological University of the Philippines,<br/> |
| Year degree granted |
2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographic references and index. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Several methods for synthesis of silver nanoparticles have been garnering attention,<br/>specifically the use of biologically available materials that can act as the reducing agents<br/>for the metal cations of silver like plant extracts. The present study demonstrated the use<br/>of Gliricidia sepium aqueous plant extract for green synthesis and investigated the effects<br/>of pH, volume ratio of reactants, silver nitrate concentration, temperature, and reaction time<br/>on the physical properties of the silver nanoparticle. In this study, silver nanoparticles were<br/>synthesized by the reduction method of silver nitrate using the aqueous extract of Gliricidia<br/>sepium. The results showed that silver nanoparticles prepared using Gliricidia sepium<br/>aqueous extract displayed a brownish yellow color, indicating the biosynthesis reduction<br/>of silver nanoparticles. Additionally, the optimized conditions were found to be at pH 12,<br/>a reactant volume ratio of 1:1.5 (plant extract to silver nitrate), using 5mM silver nitrate,<br/>and under 70 - 80°C. The study concluded the successful synthesis of silver nanoparticles<br/>that showed characteristics of 410 - 450 nm SPR peak, formation of Ag-O bonding at 600-<br/>555 cm-1 in the FTIR spectra, a quasi-spherical shape of uniform clusters at 30 nm size,<br/>and Bragg's reflection of (111), (200), and (220), further confirming the face centered cubic<br/>(fcc) structure of the silver nanoparticles. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Madre Cacao |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Silver nanoparticles |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Plant extract |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Asencio, Shekinah P. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Catama, Yvonne Louise Kim F. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Monreal, Shaira Joy T. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis COS |
| Suppress in OPAC |
No |